Annual Review of Drinking-Water Quality in New Zealand 2004

Annual Review of Drinking-Water Quality In New Zealand 2004

Citation: Ministry of Health. 2004. Annual Review of the Microbiological and Chemical Quality of Drinking-Water in New Zealand 2004. Wellington: Ministry of Health.

Published by the Ministry of Health in February 2006 PO Box 5013, Wellington, New Zealand

ISBN 0-478-29692-4 (Book) ISBN 0-478-29695-9 (Website) HP 4197

This document is available on the Ministry of Health’s website: http:// www.moh.govt.nz/water

Ministry of Health Disclaimer

The data and analyses contained in the Annual Review of Drinking-Water Quality in New Zealand 2004 have been supplied to the Ministry of Health by the Institute of Environmental Science and Research Limited (ESR). The Ministry of Health cannot confirm the accuracy of the data and the analyses and accepts no liability or responsibility for any acts or omissions, done or omitted in reliance, in whole or in part, on the data or the analyses.

All local authorities and bulk water suppliers and relevant government agencies were given the opportunity to comment on and check this document for accuracy prior to publication. The Ministry of Health has endeavoured to ensure that the feedback has been included in this published report.

ESR Disclaimer

This report or document (the Report) is given by the Institute of Environmental Science and Research Limited (ESR) solely for the benefit of the Ministry of Health, Public Health Service Providers and other Third Party Beneficiaries as defined in the Contract between ESR and the Ministry of Health and is strictly subject to the conditions laid out in that Contract.

Neither ESR nor any of its employees makes any warranty, express or implied, or assumes any legal liability or responsibility for use of the Report or its contents by any person or organisation.

Acknowledgements

The Annual Review of Drinking-Water Quality in New Zealand 2004 was prepared for the Ministry of Health as part of a contract for scientific services by Andrew Ball, Chris Nokes, Alan Ferguson and Jacqui Ritchie. The authors are very grateful for the efforts of the Health Protection Officers and Local Authority personnel who gathered the data and completed the questionnaire forms for this survey and, in particular, to those who took the time to provide useful feedback about the questionnaire.

The care taken by the staff of the Ministry of Health in reviewing the report and providing valuable comment was also very much appreciated.

National Summary

Background

This report covers the third year when the microbiological and chemical quality of drinking-water was assessed using the Drinking-Water Standards for New Zealand: 2000 (DWSNZ:2000). The report is the second in the new format which comprises the following five sections: a general overview of the quality of drinking-water of all supplies within New Zealand; a summary of the nation’s drinking-water quality, with supplies separated into Local Authority (LA)-operated supplies, school/ECC-operated supplies and ‘other’-operated supplies; an overview of drinking-water quality in each district health board (DHB) area; a summary of the quality of drinking-water in each LA area; and, an Appendix that shows microbiological and chemical compliance or non-compliance with the DWSNZ at the level of individual water supplies in the LA area. The information on the quality of drinking-water was obtained through the public health units of the DHBs using questionnaires that sought data concerning surveillance and monitoring programmes carried out by DHBs and water suppliers, respectively. Water suppliers fall into two groups: LAs, including commercial water supply companies contracted by LAs, and private organisations or communities responsible for the operation of their own drinking-water supplies, of which schools have been considered separately. Water suppliers are responsible for water quality monitoring, whereas the DHBs carry out surveillance of the management of drinking- water quality in their health districts. The survey sought information about both distribution zones and water treatment plants. In addition to microbiological and chemical quality information, the questionnaire sought information about the water treatment processes in use and the means used to demonstrate compliance with the DWSNZ:2000. To evaluate the public health significance of the water quality data contained in this report, the data are expressed primarily in terms of the population affected rather than the numbers of water supplies involved because of the different-sized populations served by different water supplies. The distribution zone figures refer to the percentage of the total population of New Zealand. However, because of the double- counting caused by many treatment plants supplying multiple zones, the plant percentages are estimates of the percentage of the population served by registered supplies. The 2004 Register of Community Drinking-water Supplies in New Zealand (the Register) contained 2,211 distribution zones and 2,156 water treatment plants and covered an estimated 89% of the New Zealand population. The microbiological and chemical quality of drinking-water was assessed against the DWSNZ:2000 using a survey of all treatment plants and distribution zones. Information was received from Health Protection Officers (HPOs) about all supplies, but 65 water suppliers could not be contacted and a further 24 were either unable or unwilling to provide monitoring data. The microbiological health risk was assessed using two main microbiological criteria: Escherichia coli and Cryptosporidium. The chemical health risk for selected supplies

Annual Review of Drinking-Water Quality in New Zealand 2004 1

was assessed with respect to those specifically-assigned chemical determinands which required monitoring. The complete report can be viewed on the Ministry of Health website (http://www.moh.govt.nz).

Key findings

The overall level of drinking-water quality in 2004 was as follows: E. coli compliance

Percentage of New Zealand population served by registered reticulated drinking-water 74% supplies known to comply with the distribution zone E. coli requirements of the DWSNZ: 2000. [These are generally located in towns with populations in excess of 5,000 people.] Percentage of New Zealand population served by reticulated drinking-water supplies 15% not compliant with the distribution zone E. coli requirements of the DWSNZ: 2000. [These are generally located in towns with populations of less than 5,000 people.] Percentage of New Zealand population not served by registered reticulated drinking- 11% water supplies. [In most instances these people are in buildings that are self supplied with drinking-water eg from a roof tank or bore]

Protozoal compliance

Percentage of New Zealand population served by registered reticulated drinking-water 71% supplies known to comply with the protozoan requirements of the DWSNZ: 2000. [These are generally located in towns with populations in excess of 5,000 people.] Percentage of New Zealand population served by reticulated drinking-water supplies 18% not compliant with the protozoan requirements of the DWSNZ: 2000. [These are generally located in towns with populations less than 5,000 people.] Percentage of New Zealand population not served by registered reticulated drinking- 11% water supplies. [In most instances these people are in buildings that are self supplied with drinking-water eg from a roof tank or bore]

During 2004, water supplies to 74% of New Zealanders were served by community drinking-water supplies that complied with the E. coli criteria of the DWSNZ:2000. This represents an improvement of 3% since 2003. Compliance with the Cryptosporidium criteria of the DWSNZ:2000 was demonstrated in treatment plants serving an estimated 71% of the population, a 7% improvement since 2003. Most large communities were served by water supplies which demonstrated microbiological compliance with the DWSNZ:2000 during 2004. However, many smaller communities were supplied with microbiologically non-compliant drinking- water. The general trend in bacteriological compliance is best assessed at the distribution zone and is shown in Figure 1. The complete details of distribution zone compliance for each Health District are given in Appendix 1.

Annual Review of Drinking-Water Quality in New Zealand 2004 2

Figure 1: Trend in bacteriological compliance at the distribution zone

4.5 DWSNZ:1995 DWSNZ:2000 New Zealand population 4 (census estimate) 3.5 3 Population in registered drinking-water supplies 2.5 2 Complied with the 1.5 DWSNZ:1995 but not 1 DWSNZ:2000 Population (millions) 0.5 Complied with the then current standards 0 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 YEAR

The general trend in protozoan compliance is assessed at treatment plants only and is shown in Figure 2. The proportion of the population supplied by DWSNZ:2000- compliant plants has risen appreciably from about 64% in 2003 to 71% in 2004.

Figure 2: Trend in protozoan compliance at the treatment plant

4.5 DWSNZ:1995 DWSNZ:2000 4 New Zealand 3.5 population (census estimate) 3 2.5 Population in registered 2 drinking-water supplies 1.5 1 Complied with the then Population (millions) current standards 0.5 0 1996 1997 1998 1999 2000 2001 2002 2003 2004

YEAR

There was a general trend for the percentage of distribution zones complying bacteriologically within a population band to decrease as the population of the band decreased (ie, the smaller the community water supply, the less likely it is to comply with the DWSNZ:2000).

Annual Review of Drinking-Water Quality in New Zealand 2004 3

Approximately 1,040,000 (26%)1 of New Zealanders were supplied with drinking- water that failed to comply bacteriologically with the criteria of the DWSNZ:2000 or were self-supplied. The causes of non-compliance and the number of people affected are listed below

• 104,000 (3%) were served by registered supplies with unacceptable levels of E. coli.

• 57,000 (1.4%) were served by registered supplies where water suppliers failed to take appropriate corrective action once E. coli had been found.

• 66,000 (2%) were served by registered supplies where E. coli monitoring was either not carried out or where monitoring data were not available.

• 564,000 (14%) were served by registered supplies that did not comply bacteriologically with the DWSNZ:2000 because the number of samples taken during the year was insufficient to demonstrate E. coli compliance according to the DWSNZ:2000.

• 5,000 (0.1%) were served by registered supplies that did not comply bacteriologically because the compliance testing was not analysed by a laboratory registered by the Ministry of Health for drinking-water compliance testing.

• 446,000 (11%) were self-supplied (i.e. not from registered supplies).

The number of people in zones that failed to comply has decreased in most of the above categories since 2003. However, there were two exceptions to this trend. There was a marginal increase in the number of people supplied by unmonitored supplies in 2004 (caused by increased populations in these supplies rather than an increased number of supplies in this category). Details of the supplies that ceased monitoring in 2004 are given in Appendix 2. The number of people served by supplies in which E. coli transgressions occurred and that were not appropriately followed up by immediate corrective action doubled since 2003. This is of concern because failure to remedy the cause of a transgression subjects the population to prolonged exposure to faecally contaminated drinking-water and imposes an unacceptable risk of waterborne disease on the community. A further 93,000 people were supplied with drinking-water from 39 zones that failed to comply bacteriologically with the criteria of the DWSNZ:2000 for technical reasons. These have now been addressed and so were deemed to have complied with the DWSNZ:2000 by the DHB. Of these, almost 16,000 people in four zones were in zones that complied in 2003 and so warrant investigation. Details of these supplies are given in Appendix 3. The overall level of compliance with the chemical criteria of the DWSNZ:2000 for those distribution zones where Priority 2 (P2) chemical determinands (other than fluoride) have been assigned was poor. Compliance was achieved for approximately 139 (36%) of the 387 assignations, which represents a 9% increase since 2003. The trends in the causes of bacteriological non-compliance of distribution zones are displayed in Figure 3. Overall, there is a steady downward trend in the number of

1 Some people supplied with water that failed to comply bacteriologically with the DWSNZ:2000 fell into more than one of the categories.

Annual Review of Drinking-Water Quality in New Zealand 2004 4

zones with excessive E. coli transgressions and that use non-recognised laboratories for compliance monitoring. The former reflects the improvement of water treatment, although the rate of change is slow now because the larger supplies have made the necessary upgrades and many of the smaller ones may not be able to afford to do so. Very few water supplies – and none of the LA-run supplies – are now tested by non- recognised laboratories due to the continued education of water suppliers.

Figure 3: Trend in the causes of distribution zone non-compliance

80% DWSNZ:1995 DWSNZ:2000 70% E. coli fail

60% Inadequate corrective s 50% action

40% Not monitored

30% % of Zone of % Inadequately monitored 20%

10% Non-registered laboratory

0% Questionnaires not

1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 returned YEAR

Non-monitored supplies have also declined since 1998, when the registration of pre- existing water supplies was completed. The initial rapid decline probably reflects the increased awareness of the DWSNZ by the small community water suppliers. The large increase in the number of inadequately monitored supplies between 2000 and 2001 was caused by the increased stringency in monitoring requirements prescribed in the DWSNZ:2000, particularly regarding the minimum days-of-the- week and maximum interval between successive samples criteria. While this aspect of compliance has steadily improved since 2001, many water suppliers have not yet updated their monitoring programmes. This survey cannot distinguish between the two main reasons for inadequate monitoring: poor understanding of the DWSNZ:2000 monitoring requirements, or a reluctance to address the monitoring deficiencies. To address the former, a targeted education programme directed at the small supplies is probably the most effective tool. However, this is unlikely to be effective for water suppliers who are reluctant to update their monitoring programmes. The trends in non-compliance all show a consistent improvement, as evidenced by the similar slopes since 2001, except for inadequate corrective action, which has worsened slightly over the past two years. The failure to take appropriate corrective action immediately following E. coli transgressions is a serious cause of concern because of the serious public health consequences that could follow if the failure coincided with elevated pathogen concentrations in the source water. Failure to reduce this risk by increased disinfection or by taking appropriate steps to reduce the hazard (ie. close or change the supply) or exposure (ie. ensuring that people do not

Annual Review of Drinking-Water Quality in New Zealand 2004 5

drink unboiled water) increases the likelihood of waterborne disease. Inadequate corrective action is indicative either of the failure of the water supplier to recognise this issue, or to accept that it poses a potentially serious health risk. Several waterborne disease outbreaks have occurred in New Zealand in recent years2 and it is inevitable that inadequately treated water will cause further waterborne outbreaks unless this matter receives urgent attention. All P23 chemical determinand assignations (apart from intentionally-added fluoride), with the exception of one, were monitored using Ministry of Health-recognised laboratories. A little over half of the Priority 2b (P2b) chemical determinand assignations were not monitored at all, or were inadequately monitored, with the result that unsatisfactory monitoring was a major reason for non-compliance with the chemical criteria of the DWSNZ:2000. Exceedences of the maximum acceptable values (MAVs) were reported in 18% of P2b chemical determinand assignations, and the HPOs considered corrective actions to be inadequate in 77% of instances of the MAV for P2b determinands being exceeded. Monitoring for fluoride as a Priority 2a (P2a) determinand was required at 45 treatment plants where fluoride was intentionally added ─ these treatment plants supplied a combined population of approximately 2,100,000 people. Water from treatment plants complying with the fluoride MAV specified in the DWSNZ:2000 was provided to 96% of this population, an increase of 5% since 2003.

Detailed summary of survey data To evaluate the public health significance of the water quality data contained in this report, summary statistics are expressed in terms of the population affected. Since expression of the zone numbers may be of more value for regulation and water supply management, data are summarised in both ways. Information was received for each of the 2,211 distribution zones and 2,156 water treatment plants listed in the Register as at December 2004 covering approximately 3,615,000 people. Approximately 446,000 people were not connected to a registered supply. During 2004, the number of registered zones decreased by 12, but the number of people served by registered supplies rose by 116,000 due to revised distribution zone population estimates.

2 . It should be further noted that New Zealand has recorded its first occurrence of E. coli O157 disease from a municipal supply during 2005.

3 Chemical substances or determinands that are present in a water supply at potentially health-significant concentrations (usually greater than 50% of their MAV) are the only chemical determinands that must be monitored to comply with the chemical criteria of the DWSNZ:2000. These chemical determinands are known as Priority 2 (P2) determinands and are of two types: determinands introduced in treatment chemicals, including intentionally-added fluoride, (P2a); and determinands from any other source (P2b). At present, P2 classifications are only notified in the Register for distribution zones with populations of 500 or more people.

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Distribution zone bacteriological monitoring and compliance

Less bacteriological monitoring was carried out in smaller supplies than in larger supplies, both in terms of the percentage of zones monitored and the percentage of zones adequately monitored. During 2004, 98% of the population served by registered supplies lived in distribution zones where some monitoring was conducted. This represents an increase of 3% since 2003. Water supplied to 74% of the New Zealand population, or 28% of distribution zones, was adequately monitored as per the requirements of the DWSNZ:2000. This represents an improvement 1% in population terms since 2003.

Table 1: Summary of microbiological compliance in distribution zones and treatment plants for all DHBs Distribution Zones Treatment Plants E. coli E. coli Cryptosporidium DHB No. Total complied No. complied complied Zones Pop. zones Pop. TPs TPs Pop. TPs Pop. Northland 280 112,635 14% 78% 279 78% 88% 2% 52% Auckland 247 1,208,397 28% 98% 219 53% 99% 4% 97% Waikato 192 282,316 22% 59% 184 43% 56% 8% 52% Tauranga 52 136,674 21% 94% 50 48% 99% 10% 86% Whakatane 40 44,090 25% 51% 37 30% 18% 0% 0% Rotorua 96 103,079 27% 29% 90 47% 38% 0% 0% Gisborne 56 34,090 4% 89% 57 74% 97% 5% 94% Taranaki 84 86,172 20% 74% 75 75% 67% 1% 57% Hawke’s Bay 158 134,508 21% 93% 178 40% 92% 13% 90% Wanganui 62 58,605 6% 18% 61 44% 5% 3% 1% Manawatu 87 150,075 31% 95% 88 51% 88% 9% 83% Hutt Valley 60 384,807 58% 99% 38 45% 99% 18% 98% Wairarapa 33 32,566 36% 92% 37 43% 80% 0% 0% Nelson 63 68,311 38% 92% 69 32% 95% 13% 90% Marlborough 82 34,007 1% 4% 85 22% 29% 0% 0% West Coast 76 25,979 14% 41% 73 30% 39% 1% 1% Canterbury 242 415,706 37% 79% 254 35% 81% 10% 70% S. Canterbury 60 54,213 17% 67% 59 37% 75% 2% 48% Otago 159 154,290 20% 65% 146 55% 53% 2% 5% Southland 82 94,596 44% 75% 77 60% 38% 10% 6% All Regist * 2,211 3,615,116 24% 84% 2,156 49% 88% 6% 80% All NZ ** 4,060,810 74% 78% 71% * Populations as served by Registered community drinking-water supplies ** Populations as per New Zealand Census estimate

During 2004, 74% of the population lived in distribution zones supplied with drinking-water that complied with the distribution zone E. coli criterion, a 3% increase since 2003 (Table 1). During 2004 there were no discrepancies between zones listed in the Register as having an ‘a’ or ‘b’ grade and zones that failed to comply with the bacteriological criteria of the DWSNZ:2000. This situation was a

Annual Review of Drinking-Water Quality in New Zealand 2004 7

consequence of updating the grading system from 1993 to 2003 and the policy not to report provisional water supply grades4 in the Register.

Treatment plant microbiological compliance

An estimated 71% of the population, supplied by 5% of treatment plants5 was supplied with drinking-water that fully complied with the microbiological criteria of the DWSNZ:2000 during 2004. Bacteriological compliance decreased slightly in 2004 with 49% of treatment plants demonstrating E. coli compliance. However, in terms of the population served, there was a 3% improvement, which means that an estimated 78% of the population was served by bacteriologically-compliant treatment plants. Cryptosporidium compliance was demonstrated in 6% of treatment plants supplying an estimated 71% of the population on registered water supplies (Table 1). Small supplies tended to be less adequately monitored and a smaller proportion complied with the DWSNZ:2000.

Surveillance

Surveillance is carried out by DHBs either by auditing or surveillance testing of selected water supplies. During 2004, E. coli was detected by surveillance testing in three supplies that were reported as bacteriologically compliant with the DWSNZ:2000. This is indicative of a likely problem with some aspect of zone monitoring. Details of these supplies are given in Appendix 4.

Validity of compliance monitoring

All compliance testing for LA-run supplies is now being carried out by Ministry of Health-recognised laboratories. However, many non-LA supplies are still using other laboratories to analyse compliance samples. Laboratories seeking to be included on this register should apply to: International Accreditation New Zealand Private Bag 28908 Remuera, Auckland 1136 Ph: (09) 525 6655 Fax: (09) 525 2266 Email: [email protected] Use of non-recognised laboratories will automatically result in the water supply not being in compliance with the DWSNZ.

School and early childhood centre drinking-water supplies

Compliance with the DWSNZ:2000 at school and early childhood centre (ECC) supplies declined slightly since 2003. The 640 school/ECC supplies comprised approximately one-third of all registered drinking-water supplies in 2004. During

4 It is the intention of the Ministry of Health that zones and plants graded before 1998 be changed to ungraded, and those graded from 1998 be considered provisional for the interim period before they can be regraded. 5 A treatment plant is defined as the point where water enters the distribution system, irrespective of whether the water is treated or not.

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2004, 362 (57%) of the schools/ECCs with their own water supplies conducted some bacteriological monitoring, 2% more than in 2003. Of these, 84 supplies (13%) complied with the bacteriological criteria of the DWSNZ:2000, a 1% reduction since 2003. Compliance of state school supplies was 14% compared with 8% for other school/ECC supplies for which the Ministry of Education is not responsible. Many of the schools have installed ultraviolet (UV) treatment in conjunction with cartridge filtration in recent years. Most UV treatment devices used provide adequate treatment to kill bacteria and therefore reduce the likelihood of bacteriological transgressions. However, a greater dose of UV is required to kill some viruses and protozoan parasites. At present, none of the school supplies achieve protozoal compliance. It is likely that some of the UV devices installed will not be adequate to comply with the new Drinking-Water Standards for protozoa. It is recommended that all school water treatment systems be assessed against the new compliance requirements at the earliest convenience.

Private, hospital and health services drinking-water supplies

There were 862 distribution zones designated as private supplies during 2004, supplying water to approximately 130,000 people. Of these, 9%, serving 32% of people connected to private supplies complied bacteriologically with the DWSNZ:2000. At the end of 2004, ten hospitals and health services were not connected to municipal drinking-water supplies. Of these, six complied bacteriologically with the DWSNZ:2000. Of the four that failed to comply bacteriologically with the DWSNZ:2000, the Hillmorten Centre and the Waiheke Community Healthcare/St. John’s supplies failed to take appropriate corrective action following E. coli transgression, and the Princess Margaret and Te Puia Springs Hospitals were inadequately monitored. Of these supplies, only the Princess Margaret Hospital has improved since the previous report. The drinking-water supplies to Hillmorten Centre and the Waiheke Community Healthcare/St. John’s were found to contain E. coli during 2004 (as well as in previous years). This means that the water supply is contaminated with faeces and is likely to harbour other pathogens that can cause waterborne disease. Continued use of these supplies poses a serious threat to the health of patients, who are likely to be more vulnerable to disease. Water treatment at these centres is in need of urgent improvement to prevent faecal contamination. The continued failure to take appropriate corrective action following transgressions in these supplies is of concern.

Corrective actions

The DWSNZ:2000 prescribes that any transgression is immediately followed by a corrective action and is documented. Corrective actions following transgressions in 91 zones were inadequate and/or tardy and were probably not carried out in a further 70 zones. This aspect has not improved since 2003.

Annual Review of Drinking-Water Quality in New Zealand 2004 9

Disinfection

Several methods of drinking-water disinfection have been reported in New Zealand, comprising chlorination, ozonation and UV irradiation. Chlorination remains the most popular means of drinking-water disinfection and served an estimated 67% of people connected to registered drinking-water supplies or 25% of treatment plants. Secure groundwater supplies are used by an estimated 17% of people connected to registered drinking-water supplies; these comply with the DWSNZ:2000 without the need for disinfection. Bacteriological compliance was demonstrated in supplies to an estimated 88% of the population on chlorinated supplies or 48% of treatment plants using chlorination. Most of the non-compliance in chlorinated supplies was caused by lack of monitoring, although 45 were contaminated with E. coli during 2004, which is a decrease since 2003. The number of treatment plants using UV treatment increased by about 40 during 2004. UV treatment is particularly popular for treating small community supplies, particularly schools, probably because of the low costs associated with their installation and operation. Of the 597 UV-treated supplies, 58% complied bacteriologically with the DWSNZ:2000. This represents a 7% increase in bacteriological compliance of UV-treated supplies compared with 2003. Non- compliance mostly resulted from inadequate or no monitoring, although E. coli was detected in 13 of these supplies during 2004. Five of the 20 treatment plants using ozone treatment complied microbiologically with the DWSNZ:2000 during 2004, with no or inadequate monitoring being the cause of non-compliance in all cases. The percentage of plants that complied microbiologically6 with the DWSNZ:2000 has increased from 20% in 2003 to 25% in 2004, which continues the upward trend in this respect.

P2 chemical determinand monitoring

The percentage of the population supplied by distribution zones that complied with the chemical requirements of the DWSNZ:2000 has increased by 3% since 2003. Since 2002 the number of zones that were either not monitored or inadequately monitored for their assigned P2 determinands has fallen markedly from 72% to 54%. Chemical substances or determinands that are present in a water supply at potentially health-significant concentrations (usually greater than 50% of their MAV) are the only chemical determinands that must be monitored to comply with the chemical criteria of the DWSNZ:2000. These chemical determinands are known as Priority 2 (P2) determinands and are of two types: determinands introduced in treatment chemicals, including intentionally-added fluoride, (P2a); and determinands from any other source (P2b). At present, P2 classifications are only notified in the Register for distribution zones with populations of 500 or more people. Compliance with the requirements of the DWSNZ:2000 for chemical determinands (including fluoride) was achieved by distribution zones supplying ca. 2,897,000

6 The term microbiological compliance includes both bacteriological and protozoal compliance. The term bacteriological compliance is used when it is not appropriate to use microbiological compliance (eg. in relation to UV and chlorine, which are effective treatments for bacteria but not protozoa).

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people or 71% of the population7. This population included approximately 2,689,000 people living in distribution zones to which P2 chemical determinands were assigned and which required monitoring according to the DWSNZ:2000. Forty-seven percent of the distribution zones to which P2 chemical determinands were assigned complied with the chemical criteria of the DWSNZ:2000, which represents a combined population of approximately 1,971,000 people. The primary reason for distribution zones not complying with the chemical criteria of the DWSNZ:2000 was inadequate, or no monitoring. P2 determinands (including intentionally-added fluoride) were assigned to 278 distribution zones. However, as more than one P2 determinand can be assigned to a distribution zone, a total of 576 P2 determinand assignations were made to water supplies throughout the country. Three hundred and eighty-seven of these were made for P2b determinands, and 189 for intentionally-added fluoride. These P2b chemical determinands were mostly heavy metals and disinfection by-products8. Of the P2b chemical determinand assignations, a total of 209 (54%) were not monitored at all, or inadequately monitored. The remaining assignations were adequately monitored, although they may have failed to comply for other reasons. Non-compliance with the DWSNZ:2000 also resulted from the MAV for some P2 chemical determinands being exceeded. This occurred for 18% (70) of the P2b chemical determinand assignations and potentially affects 161,500 people. HPOs considered corrective actions to be inadequate in 77% of instances of the MAV for P2b determinands being exceeded. Monitoring for fluoride as a P2a chemical determinand was required at 45 treatment plants that add fluoride intentionally, of which 32 (71%) complied. These 45 treatment plants provided water to 120 distribution zones supplying a combined population of approximately 2,100,000 people. Inadequate monitoring was the main reason for non-compliance, but exceedence of the MAV was the reason for non- compliance in three treatment plants serving approximately 13,650 people.

Status of Public Health Risk Management Plans

The forthcoming legislation is expected to require each water supply to be covered by a quality assurance programme in the form of a public health risk management plan (PHRMP). While there is no legal requirement for water suppliers to have a PHRMP in place at present, it is advisable to begin planning for them as soon as is practicable. By the end of 2004, work had been initiated on 142 PHRMPs, which comprised 6% of supplies and included proportionally more of the larger supplies.

7 This includes zones that have no P2 requirement. 8 Substances formed as a result of the disinfection process

Annual Review of Drinking-Water Quality in New Zealand 2004 11

Key Issues

A number of important issues are highlighted in this review. The key issues are addressed by the recommendations listed below.

Recommendations

• Urgent attention be given to ensuring that water suppliers who presently fail to take appropriate corrective action immediately following E. coli transgressions, do so. • Hospitals and health services with drinking-water supplies that do not comply with the DWSNZ:2000 need to take immediate remedial corrective action and report it to the DHB. • The Waiheke Health Trust and Canterbury DHB should implement the corrective action procedures immediately following the detection of E. coli in water samples, as prescribed in the DWSNZ:2000. The cause of the continued faecal contamination the Waiheke Community Health Care / Hillmorten Centre water supplies is the absence of disinfection treatment. The water suppliers should give urgent priority to the installation of automatic disinfection treatment at these supplies. In the interim period, temporary disinfection should be implemented until continuous disinfection treatment is installed. • Compliance monitoring of the Te Puia Springs and Princess Margaret Hospital water supplies needs to be aligned with the requirements of the DWSNZ:2000. This requires monthly sampling in the distribution zone and samples should be collected on three different days of the week during each calendar quarter. Successive samples should not be taken more than 45 days apart. • The DWSNZ:2005 will recognise UV treatment as a legitimate means of achieving protozoal compliance, in addition to its bactericidal effects that are presently recognised. Water suppliers considering installing UV treatment would be wise to assess the UV- treatment device against the new protozoal compliance criteria before deciding on the model of UV-treatment device to install. • Zones reported as being compliant by water suppliers but non-compliant by the DHB need to be thoroughly investigated by both parties to elicit the cause of the discrepancy, which together with the ensuing remedial action, should be reported to the Ministry of Health. • Before undertaking any monitoring of P2 chemical determinand assignations, water suppliers need to discuss their planned programmes with their DHB (a requirement of the DWSNZ:2000). This is necessary whether it is for an official P2 chemical determinand assignation, or a chemical determinand for which they wish to accumulate data to contest a possible future P2 determinand assignation. It will ensure that they are aware of any monitoring requirements made in addition to those listed in the DWSNZ:2000. • A number of water suppliers have failed to provide accurate monitoring and compliance data in a timely manner. This caused a delay to this report. While every reasonable endeavour is made to ensure accuracy, this can only be assured if the data provided are accurate.

Annual Review of Drinking-Water Quality in New Zealand 2004 12 NATIONAL DRINKING-WATER OVERVIEW

Distribution Zones No. Population LA 708 32.0% 3,426,729 84.4% School/ECC 640 28.9% 58,600 1.4% Complied Other 863 39.0% 129,787 3.2% Unregistered - - 445,694 11.0% Did not comply Total 2,211 4,060,810

Bacteriological Compliance LA Supplies 709 3311987 Proportion of supplies LA water supply zones 2004 2003 Trend Zones Number of complying zones 372 374 Worse Complying zones 52.5% 52.8% Worse Population in complying zones 2,966,711 2,785,607 Improved Population in complying zones 86.6% 84.1% Improved

Reasons for non-compliance Inadequate corrective actions 60 46 Worse Population Faecal contamination 107 119 Improved Not monitored 53 51 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 88 77 Worse Too long between samples 108 106 Worse Too few days of the week 187 192 Improved Other 0 3 Resolved

School/ECC Supplies 668 58746 School/ECC water supply zones 2004 2003 Trend Zones Number of complying zones 84 94 Worse Complying zones 13.1% 14.1% Worse Population in complying zones 11,270 11,151 Improved Population in complying zones 19.2% 19.0% Improved

Reasons for non-compliance Inadequate corrective actions 47 56 Improved Population Faecal contamination 95 102 Improved Not monitored 278 298 Improved Non-recognised laboratory 2 7 Improved Not enough monitoring 245 234 Worse Too long between samples 239 227 Worse Too few days of the week 240 217 Worse Other 0 0 -

Other Supplies 845 127325 Other water supply zones 2004 2003 Trend Zones Number of complying zones 74 79 Worse Complying zones 8.6% 9.3% Worse Population in complying zones 41,989 47,897 Worse Population in complying zones 32.4% 37.6% Worse

Reasons for non-compliance Inadequate corrective actions 54 51 Worse Population Faecal contamination 98 80 Worse Not monitored 547 541 Worse Non-recognised laboratory 10 20 Improved Not enough monitoring 159 161 Improved Too long between samples 165 164 Worse Too few days of the week 176 165 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 13 Protozoan Compliance Proportion of supplies LA Supplies 646 647 Zones LA water treatment plants 2004 2003 Trend Number of complying plants 104 116 Worse Complying plants 16.1% 17.9%

School/ECC Supplies 636 663 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 2 4 Worse Percentage of plants comply 0.3% 0.6%

Other Supplies 874 859 Other water treatment plants 2004 2003 Trend Number of complying plants 19 19 Same Complying plants 2.2% 2.2%

Chemical Compliance Supplies with chemical assignments No. Population LA 246 88.5% 2,634,321 98.0% School/ECC 0 0.0% 0 0.0% Other 32 11.5% 54,182 2.0% Total 278 2,688,503

LA Supplies Zones Population LA water supplies 2004 2003 Trend Number of complying zones 118 105 Improved Population in complying zones 1,946,649 1,843,106 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 13 12 Improved Population in complying zones 23,958 21,758 Improved

Compliance and non-compliance with DWSNZ for chemical assignments

Antimony Not Comply Comply Cadmium

Copper

Lead

Nickel

Fluoride

Bromodichloromethane

Dichloroacetic acid

MAV sum ratio for HAAs

MAV sum ratio for THMs

Trichloroacetaldehyde

P2 Determinand Trichloroacetic acid

Arsenic

Nitrate

Chlorate

Aggressive water *

Boron

Manganese

0 20 40 60 80 100 120 140 160 180 200 220 Number of Zones

* The Aggressive water determinand used in the DWSNZ:2000 has been replaced by Plumbosolvency in the DWSNZ:2005. Annual Review of Drinking-water Quality in New Zealand 2004 14 NORTHLAND HEALTH DISTRICT

Distribution Zones No. Population LA 35 12.5% 91,593 81.3% School/ECC 82 29.3% 7,718 6.9% Complied Other 163 58.2% 13,324 11.8% Total 280 112,635 Did not comply

Bacteriological Compliance

LA Supplies 35 91593 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 22 24 Worse Complying zones 62.9% 68.6% Worse Population in complying zones 85,202 89,122 Worse Population in complying zones 93.0% 97.3% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 1 Resolved Not monitored 9 9 Same Non-recognised laboratory 0 0 - Not enough monitoring 4 1 Worse Too long between samples 4 1 Worse Too few days of the week 2 1 Worse Other 0 0 -

School/ECC Supplies 84 7864 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 14 12 Improved Complying zones 17.1% 14.3% Improved Population in complying zones 1,674 1,874 Worse Population in complying zones 21.7% 23.8% Worse

Reasons for non-compliance Inadequate corrective actions 10 9 Worse National Faecal contamination 15 21 Improved Not monitored 18 24 Improved Non-recognised laboratory 0 0 - Not enough monitoring 45 46 Improved Too long between samples 43 46 Improved Too few days of the week 44 46 Improved Other 0 0 -

Other Supplies 158 12904 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 2 2 Same Complying zones 1.2% 1.3% Worse Population in complying zones 490 70 Improved Population in complying zones 3.7% 0.5% Improved

Reasons for non-compliance Inadequate corrective actions 1 2 Improved National Faecal contamination 9 7 Worse Not monitored 123 123 Same Non-recognised laboratory 0 1 Resolved Not enough monitoring 37 32 Worse Too long between samples 36 33 Worse Too few days of the week 36 33 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 15 Protozoan Compliance Proportion of supplies LA Supplies 32 33 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 5 6 Worse Complying plants 15.6% 18.2%

School/ECC Supplies 82 82 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 165 161 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 8 88.9% 69,030 99.3% School/ECC 0 0.0% 0 0.0% Other 1 11.1% 520 0.7% Total 9 69,550

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 3 4 Worse Population in complying zones 56,530 14,530 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment (as derived from appendices) Attention needs to be given to protozoal treatment throughout this district. LA-run supplies - ☺ Far North and Whangarei District Councils are to be commended for maintaining a high degree of bacteriological compliance in their supplies. Kaipara District Council needs to begin monitoring several of their supplies. School/ECC supplies - The monitoring of these supplies has improved markedly during 2004. However, 15 schools/ECCs remain unmonitored. It would be useful to target the remaining unmonitored schools find out the reasons for this so that a suitable approach may be developed to help initiate monitoring programmes. Excessive E. coli transgressions occurred in 14 supplies; it would be helpful to determine whether additional treatment or improved procedures are required and, where appropriate, to advise the Ministry of Education. Five schools/ECCs ceased monitoring E.coli during 2004; the reasons for this should be sought and monitoring re-established or the reasons why not reported. Most schools are not monitored often enough; it would be useful to ascertain and remedy the impediments to full monitoring. There is only one school with a P2 assignation (for lead) in Northland and it carried out no monitoring. Other supplies - a large proportion are not monitored; some encouragement may be warranted.

Annual Review of Drinking-water Quality in New Zealand 2004 16 FAR NORTH DISTRICT

Distribution Zones No. Population LA 16 9.4% 21,212 61.0% School/ECC 52 30.6% 4,375 12.6% Complied Other 102 60.0% 9,188 26.4% Total 170 34,775 Did not comply

Bacteriological Compliance

LA Supplies 16 21212 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 12 12 Same Complying zones 75.0% 75.0% Same Population in complying zones 20,700 20,700 Same Population in complying zones 97.6% 97.6% Same

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 3 3 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 1 1 Same Other 0 0 -

School/ECC Supplies 52 4401 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 13 9 Improved Complying zones 25.0% 17.3% Improved Population in complying zones 1,484 1,074 Improved Population in complying zones 33.9% 24.4% Improved

Reasons for non-compliance Inadequate corrective actions 7 4 Worse National Faecal contamination 12 10 Worse Not monitored 11 16 Improved Non-recognised laboratory 0 0 - Not enough monitoring 23 26 Improved Too long between samples 23 26 Improved Too few days of the week 24 26 Improved Other 0 0 -

Other Supplies 96 8568 Other water supply zones 2004 2003 Trend Region Number of complying zones 2 2 Same Complying zones 2.0% 2.1% Worse Population in complying zones 490 70 Improved Population in complying zones 5.3% 0.8% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 8 5 Worse Not monitored 72 67 Worse Non-recognised laboratory 0 0 - Not enough monitoring 27 27 Same Too long between samples 26 27 Improved Too few days of the week 26 27 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 17 Protozoan Compliance Proportion of supplies LA Supplies 12 13 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 51 50 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 103 98 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 75.0% 6,000 92.0% School/ECC 0 0.0% 0 0.0% Other 1 25.0% 520 8.0% Total 4 6,520

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 2 Worse Population in complying zones 0 6,000 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA-run supplies (as derived from appendices) The high degree of bacteriological compliance was been maintained in 2004. However, monitoring programmes need to be established for the Omania and Te Kao supplies. The optimal means of achieving protozoal compliance should be determined. Inadequate monitoring resulted in none of the assigned P2 determinands being in compliance; greater attention to the P2 monitoring scheme is needed to achieve compliance.

Annual Review of Drinking-water Quality in New Zealand 2004 18 KAIPARA DISTRICT

Distribution Zones No. Population LA 13 25.5% 7,659 77.0% School/ECC 13 25.5% 899 9.0% Complied Other 25 49.0% 1,385 13.9% Total 51 9,943 Did not comply

Bacteriological Compliance

LA Supplies 13 7659 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 4 7 Worse Complying zones 30.8% 53.8% Worse Population in complying zones 1,780 7,030 Worse Population in complying zones 23.2% 91.8% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 6 6 Same Non-recognised laboratory 0 0 - Not enough monitoring 3 0 Worse Too long between samples 3 0 Worse Too few days of the week 1 0 Worse Other 0 0 -

School/ECC Supplies 14 919 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 2 2 Same National Faecal contamination 2 6 Improved Not monitored 4 4 Same Non-recognised laboratory 0 0 - Not enough monitoring 9 10 Improved Too long between samples 9 10 Improved Too few days of the week 9 10 Improved Other 0 0 -

Other Supplies 25 1385 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 2 Improved National Faecal contamination 1 2 Improved Not monitored 24 22 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 1 2 Improved Too long between samples 1 3 Improved Too few days of the week 1 3 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 19 Protozoan Compliance Proportion of supplies LA Supplies 11 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 13 14 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 26 26 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 600 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 600

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA-run Supplies (as derived from appendices) The overall compliance status has declined since 2003. No monitoring was carried out in six supplies - this needs immediate attention. Inadequate monitoring was carried out in a further three supplies; more samples are required if compliance is to be achieved. None of the supplies achieved protozoal compliance. The optimal means of achieving protozoal compliance should be determined. P2 determinands were assigned to only one supply, but neither of the two assigned determinands complied. Despite the non-compliances monitoring was undertaken for both determinands which is an improvement on 2003 when no monitoring was done.

Annual Review of Drinking-water Quality in New Zealand 2004 20 WHANGAREI DISTRICT

Distribution Zones No. Population LA 6 10.2% 62,722 92.4% School/ECC 17 28.8% 2,444 3.6% Complied Other 36 61.0% 2,751 4.1% Total 59 67,917 Did not comply

Bacteriological Compliance

LA Supplies 6 62722 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 6 5 Improved Complying zones 100.0% 83.3% Improved Population in complying zones 62,722 61,392 Improved Population in complying zones 100.0% 97.9% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 1 Resolved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 18 2544 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 3 Worse Complying zones 5.9% 16.7% Worse Population in complying zones 190 800 Worse Population in complying zones 7.8% 31.4% Worse

Reasons for non-compliance Inadequate corrective actions 1 3 Improved National Faecal contamination 1 5 Improved Not monitored 3 4 Improved Non-recognised laboratory 0 0 - Not enough monitoring 13 10 Worse Too long between samples 11 10 Worse Too few days of the week 11 10 Worse Other 0 0 -

Other Supplies 37 2951 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 27 34 Improved Non-recognised laboratory 0 0 - Not enough monitoring 9 3 Worse Too long between samples 9 3 Worse Too few days of the week 9 3 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 21 Protozoan Compliance Proportion of supplies LA Supplies 99 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 5 6 Worse Complying plants 55.6% 66.7%

School/ECC Supplies 18 18 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 36 37 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 4 100.0% 62,430 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 4 62,430

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 3 2 Improved Population in complying zones 56,530 8,530 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices)

A similar level of bacteriological compliance was achieved in 2004 as for 2003. Protozoa compliance was achieved in only one zone during 2004. The optimal means of achieving protozoal compliance should be determined for the other supplies. The Whangarei supply was technically non-compliant due to minor deficiencies in zone monitoring; compliance was given on the understanding that this will be corrected in 2005. The Bream Bay supply did not comply chemically because three determinands were non-compliant because of MAV transgressions; the causes of these transgressions need to be examined and reported to the DHB.

Annual Review of Drinking-water Quality in New Zealand 2004 22 AUCKLAND, WAITEMATA & COUNTIES-MANUKAU HEALTH DISTRICTS

Distribution Zones No. Population LA 65 26.3% 1,183,493 97.9% School/ECC 99 40.1% 14,011 1.2% Complied Other 83 33.6% 10,893 0.9% Total 247 1,208,397 Did not comply

Bacteriological Compliance

LA Supplies 65 1116843 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 51 49 Improved Complying zones 78.5% 75.4% Improved Population in complying zones 1,181,722 1,105,408 Improved Population in complying zones 99.9% 99.0% Improved

Reasons for non-compliance Inadequate corrective actions 3 4 Improved National Faecal contamination 3 6 Improved Not monitored 5 3 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 3 Resolved Too long between samples 0 5 Resolved Too few days of the week 6 2 Worse Other 0 2 Resolved

School/ECC Supplies 99 12873 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 15 10 Improved Complying zones 15.2% 10.1% Improved Population in complying zones 2,877 2,022 Improved Population in complying zones 20.5% 15.7% Improved

Reasons for non-compliance Inadequate corrective actions 12 21 Improved National Faecal contamination 14 21 Improved Not monitored 52 46 Worse Non-recognised laboratory 0 0 - Not enough monitoring 26 37 Improved Too long between samples 25 32 Improved Too few days of the week 21 17 Worse Other 0 0 -

Other Supplies 86 10467 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 4 10 Worse Complying zones 4.8% 11.6% Worse Population in complying zones 5,550 6,129 Worse Population in complying zones 51.0% 58.6% Worse

Reasons for non-compliance Inadequate corrective actions 12 13 Improved National Faecal contamination 12 13 Improved Not monitored 53 51 Worse Non-recognised laboratory 1 4 Improved Not enough monitoring 12 19 Improved Too long between samples 14 17 Improved Too few days of the week 19 14 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 23 Protozoan Compliance Proportion of supplies LA Supplies 43 43 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 8 10 Worse Complying plants 18.6% 23.3%

School/ECC Supplies 95 97 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 81 83 Other water treatment plants 2004 2003 Trend Number of complying plants 1 2 Worse Complying plants 1.2% 2.4%

Chemical Compliance Supplies with chemical assignments No. Population LA 37 80.4% 1,117,798 98.2% School/ECC 0 0.0% 0 0.0% Other 9 19.6% 20,960 1.8% Total 46 1,138,758

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 26 28 Worse Population in complying zones 952,484 1,032,752 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 5 6 Worse Population in complying zones 13,740 15,670 Worse

General Comment (as derived from appendices) Several historical errors in plant registration have been recently identified by the DHB. These have not resulted in changes in this report, which is compiled on the basis of the Register as at 31/12/04; changes to WINZ should be notified formally ASAP. LA-run supplies - ☺ North Shore and Papakura District Councils are to be commended for their continued perfect bacteriological compliance record. Most of the Franklin supplies do not achieve protozoal compliance; the optimal means of achieving protozoal compliance should be determined. School/ECC supplies - 37 schools and ECCs did not monitor their water quality; it would be useful to determine the reasons for this so that a suitable approach may be developed to help initiate monitoring programmes. Bacteriological failures occurred in 13 schools/ECCs; it would be helpful to find out whether additional treatment or improved procedures are required and, where appropriate, to advise the Ministry of Education. In addition, most of the schools/ECCs failed to conduct appropriate corrective actions following an E. coli transgression and some education of the operators about the public health significance of drinking E. coli -contaminated water is warranted. Most schools/ECCs are not monitored often enough; it would be useful to ascertain and remedy the impediments to full monitoring. Monitoring of seven school and childcare supplies ceased during 2004; the reasons for this should be sought and monitoring re-established or the reasons why not reported. No school treatment plants achieved protozoal compliance; the optimal means of achieving protozoal compliance in school/ECC supplies should be determined. Other supplies - a large proportion are not monitored; some encouragement may be warranted. The one non-LA supply in the district complied with respect to fluoride by virtue of being supplied by compliant LA-operated treatment plants, but no samples were taken for the other P2 assignation. Annual Review of Drinking-water Quality in New Zealand 2004 24 AUCKLAND CITY

Distribution Zones No. Population LA 9 18.0% 379,626 98.5% School/ECC 10 20.0% 2,460 0.6% Complied Other 31 62.0% 3,258 0.8% Total 50 385,344 Did not comply

Bacteriological Compliance

LA Supplies 9 362980 Proportion of supplies LA water supply zones 2004 2003 Trend District Number of complying zones 8 7 Improved Complying zones 88.9% 77.8% Improved Population in complying zones 379,616 362,850 Improved Population in complying zones 100.0% 100.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 1 2 Improved Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 11 1600 School/ECC water supply zones 2004 2003 Trend District Number of complying zones 1 1 Same Complying zones 10.0% 9.1% Improved Population in complying zones 66 34 Improved Population in complying zones 2.7% 2.1% Improved

Reasons for non-compliance Inadequate corrective actions 2 3 Improved National Faecal contamination 2 3 Improved Not monitored 5 6 Improved Non-recognised laboratory 0 0 - Not enough monitoring 4 4 Same Too long between samples 4 3 Worse Too few days of the week 4 0 Worse Other 0 0 -

Other Supplies 31 3264 Other water supply zones 2004 2003 Trend District Number of complying zones 2 1 Improved Complying zones 6.5% 3.2% Improved Population in complying zones 2,150 2,000 Improved Population in complying zones 66.0% 61.3% Improved

Reasons for non-compliance Inadequate corrective actions 2 3 Improved National Faecal contamination 2 3 Improved Not monitored 21 22 Improved Non-recognised laboratory 0 0 - Not enough monitoring 7 7 Same Too long between samples 7 6 Worse Too few days of the week 6 6 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 25 Protozoan Compliance Proportion of supplies LA Supplies 33 District National LA water treatment plants * 2004 2003 Trend Number of complying plants 2 1 Improved Complying plants 66.7% 33.3% * includes 1 Watercare TP School/ECC Supplies 910 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 31 31 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 3.2%

Chemical Compliance Supplies with chemical assignments No. Population LA 6 75.0% 358,605 99.1% School/ECC 0 0.0% 0 0.0% Other 2 25.0% 3,100 0.9% Total 8 361,705

LA Supplies District National LA water supplies 2004 2003 Trend Number of complying zones 6 6 Same Population in complying zones 358,605 342,600 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 1 Same Population in complying zones 2,000 2,000 Same

General Comment on LA_run Supplies (as derived from appendices) Overall bacteriological compliance improved slightly since 2003 Monitoring programmes should be established for the two small LA-run supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 26 FRANKLIN DISTRICT

Distribution Zones No. Population LA 17 29.3% 29,230 84.3% School/ECC 33 56.9% 4,510 13.0% Complied Other 8 13.8% 954 2.7% Total 58 34,694 Did not comply

Bacteriological Compliance

LA Supplies 17 29230 Proportion of supplies LA water supply zones 2004 2003 Trend District Number of complying zones 15 14 Improved Complying zones 88.2% 82.4% Improved Population in complying zones 28,160 28,026 Improved Population in complying zones 96.3% 95.9% Improved

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 2 2 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

School/ECC Supplies 33 4504 School/ECC water supply zones 2004 2003 Trend District Number of complying zones 7 2 Improved Complying zones 21.2% 6.1% Improved Population in complying zones 1,582 486 Improved Population in complying zones 35.1% 10.8% Improved

Reasons for non-compliance Inadequate corrective actions 3 5 Improved National Faecal contamination 5 5 Same Not monitored 13 13 Same Non-recognised laboratory 0 0 - Not enough monitoring 11 16 Improved Too long between samples 10 14 Improved Too few days of the week 8 6 Worse Other 0 0 -

Other Supplies 8 677 Other water supply zones 2004 2003 Trend District Number of complying zones 1 2 Worse Complying zones 12.5% 25.0% Worse Population in complying zones 400 500 Worse Population in complying zones 41.9% 73.9% Worse

Reasons for non-compliance Inadequate corrective actions 0 3 Resolved National Faecal contamination 0 3 Resolved Not monitored 5 3 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 1 2 Improved Too long between samples 2 3 Improved Too few days of the week 1 3 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 27 Protozoan Compliance Proportion of supplies LA Supplies 16 16 District National LA water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 12.5% 12.5%

School/ECC Supplies 33 34 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 88 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 8 88.9% 26,387 99.6% School/ECC 0 0.0% 0 0.0% Other 1 11.1% 110 0.4% Total 9 26,497

LA Supplies District National LA water supplies 2004 2003 Trend Number of complying zones 2 4 Worse Population in complying zones 7,250 19,310 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 1 Same Population in complying zones 110 110 Same

General Comment on LA_run Supplies (as derived from appendices) Most of the Franklin supplies do not achieve protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Overall bacteriological compliance of the LA-run supplies has improved since 2003. A high degree of bacteriological compliance now exists for LA-managed supplies. The cause of E. coli failures in the two small supplies should be investigated and the failure to carry out immediate corrective actions in these supplies investigated and remedied. Although many of the P2 determinands assigned to supplies in this district were compliant, several were not, primarily because of MAV transgressions and inadquate corrective actions. MAV transgressions need to be followed by immediate corrective actions. In the cases of lead transgressions, the supplier should investigate whether lead is present in the source water or is leaching from the plumbing due to aggressive water. If the former, steps should be taken to reduce it. If the latter then a case may be made to allow the lead to be reclassified as a P3 determinand, and compliance may be achieved by notification of consumers to flush their taps before use.

Annual Review of Drinking-water Quality in New Zealand 2004 28 MANUKAU CITY

Distribution Zones No. Population LA 6 26.1% 311,617 99.2% School/ECC 13 56.5% 1,797 0.6% Complied Other 4 17.4% 820 0.3% Total 23 314,234 Did not comply

Bacteriological Compliance

LA Supplies 6 287267 Proportion of supplies LA water supply zones 2004 2003 Trend District Number of complying zones 4 3 Improved Complying zones 66.7% 50.0% Improved Population in complying zones 311,500 281,000 Improved Population in complying zones 100.0% 97.8% Improved

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 1 Resolved Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 13 1686 School/ECC water supply zones 2004 2003 Trend District Number of complying zones 3 3 Same Complying zones 23.1% 23.1% Same Population in complying zones 780 720 Improved Population in complying zones 43.4% 42.7% Improved

Reasons for non-compliance Inadequate corrective actions 2 4 Improved National Faecal contamination 2 4 Improved Not monitored 6 4 Worse Non-recognised laboratory 0 0 - Not enough monitoring 2 4 Improved Too long between samples 2 4 Improved Too few days of the week 1 3 Improved Other 0 0 -

Other Supplies 5 947 Other water supply zones 2004 2003 Trend District Number of complying zones 0 1 Worse Complying zones 0.0% 20.0% Worse Population in complying zones 0 90 Worse Population in complying zones 0.0% 9.5% Worse

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 3 3 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 29 Protozoan Compliance Proportion of supplies LA Supplies 22 District National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 13 13 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 45 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 4 100.0% 311,500 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 4 311,500

LA Supplies District National LA water supplies 2004 2003 Trend Number of complying zones 4 4 Same Population in complying zones 311,500 287,000 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Overall bacteriological compliance of the LA-run supplies has improved since 2003. However, the Kawakawa Bay Hall supply had an E. coli transgression that was not followed by appropriate corrective actions. a corrective action system needs to be developed and acted upon should further transgressions occur.

Annual Review of Drinking-water Quality in New Zealand 2004 30 NORTH SHORE CITY

Distribution Zones No. Population LA 4 80.0% 207,714 100.0% School/ECC 0 0.0% 0 0.0% Complied Other 1 20.0% 45 0.0% Total 5 207,759 Did not comply

Bacteriological Compliance

LA Supplies 4 193812 Proportion of supplies LA water supply zones 2004 2003 Trend District Number of complying zones 4 4 Same Complying zones 100.0% 100.0% Same Population in complying zones 207,714 193,812 Improved Population in complying zones 100.0% 100.0% Same

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend District Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 145 Other water supply zones 2004 2003 Trend District Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 31 Protozoan Compliance Proportion of supplies LA Supplies 00 District National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 4 100.0% 207,714 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 4 207,714

LA Supplies District National LA water supplies 2004 2003 Trend Number of complying zones 4 4 Same Population in complying zones 193,812 193,812 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance was maintained in 2004. All fluoridated zones received water from treatment plants that complied with the DWSNZ with respect to fluoride. Two supplies were deemed to comply chemically because conflicting advice given to the water supplier by the HPO contributed to consumers not being advised to flush taps prior to use.

Annual Review of Drinking-water Quality in New Zealand 2004 32 PAPAKURA DISTRICT

Distribution Zones No. Population LA 3 33.3% 40,240 96.8% School/ECC 4 44.4% 660 1.6% Complied Other 2 22.2% 650 1.6% Total 9 41,550 Did not comply

Bacteriological Compliance

LA Supplies 3 39600 Proportion of supplies LA water supply zones 2004 2003 Trend District Number of complying zones 3 3 Same Complying zones 100.0% 100.0% Same Population in complying zones 40,240 39,600 Improved Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 4 683 School/ECC water supply zones 2004 2003 Trend District Number of complying zones 0 1 Worse Complying zones 0.0% 25.0% Worse Population in complying zones 0 260 Worse Population in complying zones 0.0% 38.1% Worse

Reasons for non-compliance Inadequate corrective actions 1 2 Improved National Faecal contamination 1 2 Improved Not monitored 3 1 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 2 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

Other Supplies 2 650 Other water supply zones 2004 2003 Trend District Number of complying zones 0 1 Worse Complying zones 0.0% 50.0% Worse Population in complying zones 0 500 Worse Population in complying zones 0.0% 76.9% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 2 1 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 33 Protozoan Compliance Proportion of supplies LA Supplies 11 District National LA water treatment plants * 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 100.0% 100.0% * comprises 1 Watercare TP School/ECC Supplies 33 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 22 Other water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 50.0% 50.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 50.0% 13,370 94.6% School/ECC 0 0.0% 0 0.0% Other 2 50.0% 760 5.4% Total 4 14,130

LA Supplies District National LA water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 10,870 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 2 4 Worse Population in complying zones 760 13,560 Worse

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance was maintained in 2004. The cause of the MAV transgression in the Red Hill zone was investigated and was a short-term problem that is considered by ARPHS as being unlikely to recur. One supply was deemed to comply chemically because conflicting advice given to the water supplier by the HPO contributed to consumers not being advised to flush taps prior to use.

Annual Review of Drinking-water Quality in New Zealand 2004 34 RODNEY DISTRICT

Distribution Zones No. Population LA 18 19.8% 42,082 86.4% School/ECC 38 41.8% 4,544 9.3% Complied Other 35 38.5% 2,086 4.3% Total 91 48,712 Did not comply

Bacteriological Compliance

LA Supplies 18 33230 Proportion of supplies LA water supply zones 2004 2003 Trend District Number of complying zones 10 11 Worse Complying zones 55.6% 61.1% Worse Population in complying zones 41,512 29,400 Improved Population in complying zones 98.6% 88.5% Improved

Reasons for non-compliance Inadequate corrective actions 0 3 Resolved National Faecal contamination 0 3 Resolved Not monitored 2 0 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 2 Resolved Too long between samples 0 2 Resolved Too few days of the week 6 0 Worse Other 0 2 Resolved

School/ECC Supplies 37 4360 School/ECC water supply zones 2004 2003 Trend District Number of complying zones 4 3 Improved Complying zones 10.5% 8.1% Improved Population in complying zones 449 522 Worse Population in complying zones 9.9% 12.0% Worse

Reasons for non-compliance Inadequate corrective actions 4 7 Improved National Faecal contamination 4 7 Improved Not monitored 24 21 Worse Non-recognised laboratory 0 0 - Not enough monitoring 9 11 Improved Too long between samples 9 10 Improved Too few days of the week 8 7 Worse Other 0 0 -

Other Supplies 37 1804 Other water supply zones 2004 2003 Trend District Number of complying zones 0 4 Worse Complying zones 0.0% 10.8% Worse Population in complying zones 0 39 Worse Population in complying zones 0.0% 2.2% Worse

Reasons for non-compliance Inadequate corrective actions 9 6 Worse National Faecal contamination 9 6 Worse Not monitored 20 20 Same Non-recognised laboratory 1 3 Improved Not enough monitoring 4 10 Improved Too long between samples 5 8 Improved Too few days of the week 12 5 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 35 Protozoan Compliance Proportion of supplies LA Supplies 17 17 District National LA water treatment plants 2004 2003 Trend Number of complying plants 9 4 Improved Complying plants 52.9% 23.5%

School/ECC Supplies 36 36 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 34 35 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 9 90.0% 41,132 98.5% School/ECC 0 0.0% 0 0.0% Other 1 10.0% 620 1.5% Total 10 41,752

LA Supplies District National LA water supplies 2004 2003 Trend Number of complying zones 6 4 Improved Population in complying zones 35,508 19,770 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Most of the smaller supplies do not achieve protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Monitoring of the LA-run supplies has improved silghtly during the past year. Six zones do not comply because the days-of-the-week sampling criterion was not met. The monitoring programmes for these supplies need amending. A mix of complying and non-complying P2 assignations appear in the district. The majority of non-compliances arise because of an MAV transgression and inadequate corrective action in response, but this is an improved situation compared with 2003 when there was no monitoring. However, five supplies had MAV transgressions that were not followed by investigation/corrective actions; this needs to be addressed.

Annual Review of Drinking-water Quality in New Zealand 2004 36 WAITAKERE CITY

Distribution Zones No. Population LA 8 72.7% 172,984 98.2% School/ECC 1 9.1% 40 0.0% Complied Other 2 18.2% 3,080 1.7% Total 11 176,104 Did not comply

Bacteriological Compliance

LA Supplies 8 170724 Proportion of supplies LA water supply zones 2004 2003 Trend District Number of complying zones 7 7 Same Complying zones 87.5% 87.5% Same Population in complying zones 172,980 170,720 Improved Population in complying zones 100.0% 100.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 1 0 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

School/ECC Supplies 140 School/ECC water supply zones 2004 2003 Trend District Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Other Supplies 2 3080 Other water supply zones 2004 2003 Trend District Number of complying zones 1 1 Same Complying zones 50.0% 50.0% Same Population in complying zones 3,000 3,000 Same Population in complying zones 97.4% 97.4% Same

Annual Review of Drinking-water Quality in New Zealand 2004 37 Protozoan Compliance Proportion of supplies LA Supplies 44 District National LA water treatment plants * 2004 2003 Trend Number of complying plants 3 2 Improved Complying plants 75.0% 50.0% * includes 3 Watercare TPs School/ECC Supplies 11 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 6 85.7% 172,460 98.3% School/ECC 0 0.0% 0 0.0% Other 1 14.3% 3,000 1.7% Total 7 175,460

LA Supplies District National LA water supplies 2004 2003 Trend Number of complying zones 6 6 Same Population in complying zones 172,460 170,260 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The near-perfect record of bacteriological compliance was maintained in 2004. However, monitoring ceased in the Piha Camping Ground supply during 2004. If this supply is no longer valid it should be deregistered - otherwise monitoring should be re-established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 38 WAIKATO HEALTH DISTRICT

Distribution Zones No. Population LA 78 40.6% 269,651 95.5% School/ECC 85 44.3% 6,611 2.3% Complied Other 29 15.1% 6,054 2.1% Total 192 282,316 Did not comply

Bacteriological Compliance

LA Supplies 78 256421 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 25 15 Improved Complying zones 32.1% 19.2% Improved Population in complying zones 162,599 137,991 Improved Population in complying zones 60.3% 53.8% Improved

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 16 21 Improved Not monitored 4 6 Improved Non-recognised laboratory 0 0 - Not enough monitoring 32 13 Worse Too long between samples 35 26 Worse Too few days of the week 31 35 Improved Other 0 0 -

School/ECC Supplies 89 6889 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 7 6 Improved Complying zones 8.2% 6.7% Improved Population in complying zones 849 518 Improved Population in complying zones 12.8% 7.5% Improved

Reasons for non-compliance Inadequate corrective actions 7 11 Improved National Faecal contamination 26 18 Worse Not monitored 11 18 Improved Non-recognised laboratory 0 0 - Not enough monitoring 61 58 Worse Too long between samples 62 57 Worse Too few days of the week 63 55 Worse Other 0 0 -

Other Supplies 28 6014 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 10 4 Improved Complying zones 34.5% 14.3% Improved Population in complying zones 2,696 619 Improved Population in complying zones 44.5% 10.3% Improved

Reasons for non-compliance Inadequate corrective actions 1 4 Improved National Faecal contamination 7 7 Same Not monitored 10 9 Worse Non-recognised laboratory 0 2 Resolved Not enough monitoring 6 9 Improved Too long between samples 7 11 Improved Too few days of the week 5 6 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 39 Protozoan Compliance Proportion of supplies LA Supplies 71 70 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 11 8 Improved Complying plants 15.5% 11.4%

School/ECC Supplies 83 87 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 30 29 Other water treatment plants 2004 2003 Trend Number of complying plants 3 2 Improved Complying plants 10.0% 6.9%

Chemical Compliance Supplies with chemical assignments No. Population LA 26 96.3% 209,402 99.4% School/ECC 0 0.0% 0 0.0% Other 1 3.7% 1,252 0.6% Total 27 210,654

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 9 9 Same Population in complying zones 137,724 125,412 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment (as derived from appendices) Most of the rural supplies do not achieve protozoal compliance; for these supplies the optimal means of achieving protozoal compliance should be determined. LA-run supplies - ☺ Waikato District Council is to be commended for achieving the greatest improvement in water quality during 2004. Otorohanga District Council showed the greatest decline in compliance and need to observe the monitoring criteria if compliance is to be achieved. School/ECC supplies - There was an overall decline in the quality of these supplies. Excessive E. coli were detected in 25 schools; it would be useful to find out whether additional treatment or improved procedures are required and, if the former, to advise the Ministry of Education. In addition, seven of the schools/ECCs conducted appropriate corrective actions following an E. coli transgression some education of the operators about the public health significance of drinking E. coli -contaminated water is warranted. Most schools/ECCs are not monitored often enough; it would be useful to ascertain and remedy the impediments to full monitoring. Monitoring of seven school and childcare supplies ceased during 2004; the reasons for this should be sought and monitoring re-established or the reasons why not reported. Other supplies - there appears to be very few private supplies registered in this district - this may warrant review. The single supply did not comply with repsect to its P2 assignations because, as in 2003, no monitoring was undertaken; the DHB should follow up and report.

Annual Review of Drinking-water Quality in New Zealand 2004 40 HAMILTON CITY

Distribution Zones No. Population LA 2 100.0% 130,600 100.0% School/ECC 0 0.0% 0 0.0% Complied Other 0 0.0% 0 0.0% Total 2 130,600 Did not comply

Bacteriological Compliance

LA Supplies 1 117100 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 1 Improved Complying zones 100.0% 100.0% Same Population in complying zones 130,600 117,100 Improved Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 00 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Annual Review of Drinking-water Quality in New Zealand 2004 41 Protozoan Compliance Proportion of supplies LA Supplies 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 100.0% 100.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 00 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 130,600 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 130,600

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 2 1 Improved Population in complying zones 130,600 117,100 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The newly registered supply was adjudged to be bacteriologically compliant although some leniency was given. The monitoring deficiencies need to be addressed in 2005.

Annual Review of Drinking-water Quality in New Zealand 2004 42 HAURAKI DISTRICT

Distribution Zones No. Population LA 10 83.3% 15,305 99.1% School/ECC 2 16.7% 141 0.9% Complied Other 0 0.0% 0 0.0% Total 12 15,446 Did not comply

Bacteriological Compliance

LA Supplies 10 15305 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 3 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 10 5 Worse Too long between samples 10 6 Worse Too few days of the week 10 10 Same Other 0 0 -

School/ECC Supplies 2 166 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 0 2 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 2 0 Worse Too few days of the week 2 0 Worse Other 0 0 -

Other Supplies 00 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Annual Review of Drinking-water Quality in New Zealand 2004 43 Protozoan Compliance Proportion of supplies LA Supplies 10 10 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 2 Worse Complying plants 0.0% 20.0%

School/ECC Supplies 22 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 00 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 1,735 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 1,735

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the LA-operated supplies complied in 2004. The monitoring has slipped in all but three zones during the past year. Attention should be paid to the zone monitoring criteria. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. P2 monitoring was not carried out in two supplies; P2 monotiring programmes need to be established.

Annual Review of Drinking-water Quality in New Zealand 2004 44 MATAMATA PIAKO DISTRICT

Distribution Zones No. Population LA 8 32.0% 15,604 88.1% School/ECC 11 44.0% 877 4.9% Complied Other 6 24.0% 1,240 7.0% Total 25 17,721 Did not comply

Bacteriological Compliance

LA Supplies 8 15604 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 2 Same Complying zones 25.0% 25.0% Same Population in complying zones 150 5,720 Worse Population in complying zones 1.0% 36.7% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 4 Resolved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 5 1 Worse Too long between samples 2 3 Improved Too few days of the week 2 0 Worse Other 0 0 -

School/ECC Supplies 12 882 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 2 2 Same Complying zones 18.2% 16.7% Improved Population in complying zones 249 163 Improved Population in complying zones 28.4% 18.5% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 1 Worse Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 7 9 Improved Too long between samples 8 9 Improved Too few days of the week 7 8 Improved Other 0 0 -

Other Supplies 6 1240 Other water supply zones 2004 2003 Trend Region Number of complying zones 3 3 Same Complying zones 50.0% 50.0% Same Population in complying zones 700 555 Improved Population in complying zones 56.5% 44.8% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 2 1 Worse Not monitored 1 0 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 45 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 14.3%

School/ECC Supplies 11 12 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 66 Other water treatment plants 2004 2003 Trend Number of complying plants 2 1 Improved Complying plants 33.3% 16.7%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 100.0% 11,834 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 3 11,834

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Two supplies complied but overall compliance status is largely unchanged. The causes of E. coli transgressions need to be investigated to determine whether additional treatment or improved procedures are required. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. P2 monitoring was not carried out in three supplies; P2 monotiring programmes need to be established.

Annual Review of Drinking-water Quality in New Zealand 2004 46 OTOROHANGA DISTRICT

Distribution Zones No. Population LA 7 46.7% 4,280 70.1% School/ECC 7 46.7% 577 9.4% Complied Other 1 6.7% 1,252 20.5% Total 15 6,109 Did not comply

Bacteriological Compliance

LA Supplies 7 4280 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 3 Worse Complying zones 0.0% 42.9% Worse Population in complying zones 0 610 Worse Population in complying zones 0.0% 14.3% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 2 0 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 7 2 Worse Too long between samples 7 4 Worse Too few days of the week 1 0 Worse Other 0 0 -

School/ECC Supplies 7 542 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 2 Worse Complying zones 14.3% 28.6% Worse Population in complying zones 15 35 Worse Population in complying zones 2.6% 6.5% Worse

Reasons for non-compliance Inadequate corrective actions 0 2 Resolved National Faecal contamination 4 3 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 6 2 Worse Too long between samples 5 3 Worse Too few days of the week 6 5 Worse Other 0 0 -

Other Supplies 1 1252 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 100.0% 0.0% Improved Population in complying zones 1,252 0 Improved Population in complying zones 100.0% 0.0% Improved

Annual Review of Drinking-water Quality in New Zealand 2004 47 Protozoan Compliance Proportion of supplies LA Supplies 66 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 77 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 1 100.0% 1,252 100.0% Total 1 1,252

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Zone monitoring has declined in six of the seven supplies during the past year. Inadequate monitoring of three supplies was the main cause of non-compliance. The monitoring programmes will need to be addressed if improvement is to occur. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined.

Annual Review of Drinking-water Quality in New Zealand 2004 48 RUAPEHU DISTRICT

Distribution Zones No. Population LA 7 25.9% 8,964 70.6% School/ECC 11 40.7% 361 2.8% Complied Other 9 33.3% 3,365 26.5% Total 27 12,690 Did not comply

Bacteriological Compliance

LA Supplies 7 8964 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 3 Worse Complying zones 28.6% 42.9% Worse Population in complying zones 490 6,740 Worse Population in complying zones 5.5% 75.2% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 2 Resolved Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 5 2 Worse Too few days of the week 3 1 Worse Other 0 0 -

School/ECC Supplies 11 318 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 2 Resolved National Faecal contamination 3 4 Improved Not monitored 3 2 Worse Non-recognised laboratory 0 0 - Not enough monitoring 8 8 Same Too long between samples 8 8 Same Too few days of the week 8 5 Worse Other 0 0 -

Other Supplies 9 3379 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 11.1% 0.0% Improved Population in complying zones 40 0 Improved Population in complying zones 1.2% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 1 2 Improved National Faecal contamination 2 3 Improved Not monitored 3 4 Improved Non-recognised laboratory 0 0 - Not enough monitoring 3 4 Improved Too long between samples 3 3 Same Too few days of the week 4 4 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 49 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 11 11 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 99 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 11.1%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 75.0% 8,000 74.1% School/ECC 0 0.0% 0 0.0% Other 1 25.0% 2,800 25.9% Total 4 10,800

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Zone monitoring has declined in three of the seven supplies during the past year. Inadequate monitoring of three supplies was the main cause of non-compliance. The monitoring programmes will need to be addressed if improvement is to occur. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Although several of the P2 assignations were in compliance, a number, mainly heavy metals, were non-compliant because of MAV transgressions. A check to determine the source of these metals may allow the water be designated as aggressive and compliance to be achieved through public notification of the need to flush taps before drawing water for use.

Annual Review of Drinking-water Quality in New Zealand 2004 50 SOUTH WAIKATO DISTRICT

Distribution Zones No. Population LA 6 46.2% 21,600 94.8% School/ECC 3 23.1% 239 1.0% Complied Other 4 30.8% 954 4.2% Total 13 22,793 Did not comply

Bacteriological Compliance

LA Supplies 6 21600 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 2 Worse Complying zones 0.0% 33.3% Worse Population in complying zones 0 100 Worse Population in complying zones 0.0% 0.5% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 2 3 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 1 1 Same Too few days of the week 5 3 Worse Other 0 0 -

School/ECC Supplies 6 473 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 0 3 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 2 3 Improved Too long between samples 2 3 Improved Too few days of the week 1 2 Improved Other 0 0 -

Other Supplies 3 914 Other water supply zones 2004 2003 Trend Region Number of complying zones 2 1 Improved Complying zones 50.0% 33.3% Improved Population in complying zones 214 64 Improved Population in complying zones 22.4% 7.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 0 1 Resolved Not monitored 1 0 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 2 Improved Too few days of the week 0 1 Resolved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 51 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 25 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 43 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 16,000 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 16,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The degree of zone bacteriological compliance of the LA-run supplies has slipped since 2003. Improvements to treatment and the monitoring programme need to be amended if a greater level of compliance is to be achieved. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. The single zone with a P2 determinand was non-compliant because a non-registered laboratory was used for sample analysis. Care with selecting a laboratory will provide the opportunity for achieving compliance.

Annual Review of Drinking-water Quality in New Zealand 2004 52 THAMES-COROMANDEL DISTRICT

Distribution Zones No. Population LA 14 48.3% 20,077 93.8% School/ECC 10 34.5% 782 3.7% Complied Other 5 17.2% 550 2.6% Total 29 21,409 Did not comply

Bacteriological Compliance

LA Supplies 14 20077 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 4 4 Same Complying zones 28.6% 28.6% Same Population in complying zones 9,570 8,521 Improved Population in complying zones 47.7% 42.4% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 4 6 Improved Not monitored 4 4 Same Non-recognised laboratory 0 0 - Not enough monitoring 4 1 Worse Too long between samples 4 1 Worse Too few days of the week 2 0 Worse Other 0 0 -

School/ECC Supplies 10 834 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 2 1 Worse Not monitored 2 7 Improved Non-recognised laboratory 0 0 - Not enough monitoring 8 3 Worse Too long between samples 8 3 Worse Too few days of the week 8 3 Worse Other 0 0 -

Other Supplies 5 550 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 2 0 Worse Not monitored 3 4 Improved Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 2 1 Worse Too few days of the week 2 1 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 53 Protozoan Compliance Proportion of supplies LA Supplies 19 19 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 5 1 Improved Complying plants 26.3% 5.3%

School/ECC Supplies 99 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 77 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 100.0% 6,600 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 3 6,600

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 3 Worse Population in complying zones 0 6,600 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Zone bacteriological compliance has declined marginally since 2003. Excessive E. coli transgressions caused non-compliance in four supplies, the reasons for which need to be investigated and resolved. Monitoring programmes need to be established for the four unmonitored supplies. Protozoal compliance was achieved in only 5/14 supplies; the optimal means of achieving protozoal compliance should be determined for the remainder. Most supplies did not comply in 2004; none were adequately monitored; P2 monitoring programmes need to be established or enhanced for these supplies. The lead MAV was transgressed in two zones. Increased monitoring and investigation of how to reduce disinfection by-product formation in the Tairua supply will assist in achieving compliance. If the lead in two of the zones is shown to arise from the aggressiveness of the water, compliance with regard to aggressiveness can be achieved by public notification of the need to flush their taps before drawing water for use.

Annual Review of Drinking-water Quality in New Zealand 2004 54 WAIKATO DISTRICT

Distribution Zones No. Population LA 16 41.0% 21,352 90.5% School/ECC 20 51.3% 1,748 7.4% Complied Other 3 7.7% 500 2.1% Total 39 23,600 Did not comply

Bacteriological Compliance

LA Supplies 16 20422 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 13 0 Improved Complying zones 81.3% 0.0% Improved Population in complying zones 16,677 0 Improved Population in complying zones 78.1% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 2 3 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 3 1 Worse Too long between samples 3 4 Improved Too few days of the week 2 15 Improved Other 0 0 -

School/ECC Supplies 20 1794 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 3 2 Worse National Faecal contamination 5 3 Worse Not monitored 4 3 Worse Non-recognised laboratory 0 0 - Not enough monitoring 15 17 Improved Too long between samples 16 16 Same Too few days of the week 16 16 Same Other 0 0 -

Other Supplies 3 500 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 33.3% 0.0% Improved Population in complying zones 270 0 Improved Population in complying zones 54.0% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 2 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 2 2 Same Too few days of the week 2 2 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 55 Protozoan Compliance Proportion of supplies LA Supplies 66 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 4 3 Improved Complying plants 66.7% 50.0%

School/ECC Supplies 20 20 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 33 Other water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 33.3% 33.3%

Chemical Compliance Supplies with chemical assignments No. Population LA 8 100.0% 4,212 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 8 4,212

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 6 5 Improved Population in complying zones 2,512 1,712 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) There has been a vast improvement in compliance during 2004. Investigating and resolving the causes of the E. coli transgressions in the two zones where E. coli failures were reported and conducting appropriate and immediate corrective action following transgressions should receive priority this year. Compliance was not shown for any P2 assignations due to no or inadequate monitoring. P2 monitoring programmes need to be established or enhanced for these supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 56 WAIPA DISTRICT

Distribution Zones No. Population LA 6 24.0% 29,077 92.7% School/ECC 15 60.0% 1,708 5.4% Complied Other 4 16.0% 588 1.9% Total 25 31,373 Did not comply

Bacteriological Compliance

LA Supplies 7 30277 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 1 3 Improved Too long between samples 4 4 Same Too few days of the week 6 6 Same Other 0 0 -

School/ECC Supplies 15 1699 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 4 2 Improved Complying zones 26.7% 13.3% Improved Population in complying zones 585 320 Improved Population in complying zones 34.3% 18.8% Improved

Reasons for non-compliance Inadequate corrective actions 3 5 Improved National Faecal contamination 5 5 Same Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 9 11 Improved Too long between samples 9 9 Same Too few days of the week 10 12 Improved Other 0 0 -

Other Supplies 4 588 Other water supply zones 2004 2003 Trend Region Number of complying zones 2 0 Improved Complying zones 50.0% 0.0% Improved Population in complying zones 220 0 Improved Population in complying zones 37.4% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 2 2 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 2 Resolved Too long between samples 0 2 Resolved Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 57 Protozoan Compliance Proportion of supplies LA Supplies 65 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 0 Improved Complying plants 16.7% 0.0%

School/ECC Supplies 15 15 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 33 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 5 100.0% 28,609 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 5 28,609

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies complied in 2004. The main impediment to achieving bacteriological compliance for most zones is failure to comply with the monitoring criteria, particularly the minimum days-of-the-week criterion. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. All zones in the district were non-compliant with respect to P2 assignations due mainly to inadequate monitoring. This was the primary cause of non-compliance in 2003, and more effort to take sufficient samples should result in an increased degree of compliance.

Annual Review of Drinking-water Quality in New Zealand 2004 58 WAITOMO DISTRICT

Distribution Zones No. Population LA 4 26.7% 5,592 86.2% School/ECC 8 53.3% 213 3.3% Complied Other 3 20.0% 680 10.5% Total 15 6,485 Did not comply

Bacteriological Compliance

LA Supplies 4 5592 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 1 Improved Complying zones 50.0% 25.0% Improved Population in complying zones 5,112 500 Improved Population in complying zones 91.4% 8.9% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 2 1 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 1 2 Improved Too few days of the week 1 1 Same Other 0 0 -

School/ECC Supplies 8 221 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 2 1 Worse Not monitored 3 1 Worse Non-recognised laboratory 0 0 - Not enough monitoring 4 5 Improved Too long between samples 4 6 Improved Too few days of the week 5 4 Worse Other 0 0 -

Other Supplies 3 680 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 2 Improved Not monitored 2 1 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 59 Protozoan Compliance Proportion of supplies LA Supplies 44 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 88 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 33 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 4,612 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 4,612

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 4,612 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Overall zone bacteriological compliance of the LA-run supplies has improved since 2003. Priority should be given to investigating and resolving the E. coli transgressions although the monitoring schedule also needs to be improved. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined.

Annual Review of Drinking-water Quality in New Zealand 2004 60 PACIFIC HEALTH DISTRICT

Distribution Zones No. Population LA 65 34.6% 269,442 94.9% School/ECC 41 21.8% 3,310 1.2% Complied Other 82 43.6% 11,091 3.9% Total 188 283,843 Did not comply

Bacteriological Compliance

LA Supplies 68 253669 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 42 44 Worse Complying zones 64.6% 64.7% Worse Population in complying zones 177,816 177,729 Improved Population in complying zones 66.0% 70.1% Worse

Reasons for non-compliance Inadequate corrective actions 5 1 Worse National Faecal contamination 12 12 Same Not monitored 3 3 Same Non-recognised laboratory 0 1 Resolved Not enough monitoring 3 10 Improved Too long between samples 6 11 Improved Too few days of the week 6 12 Improved Other 0 0 -

School/ECC Supplies 40 3275 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 2 9 Worse Complying zones 4.9% 22.5% Worse Population in complying zones 110 765 Worse Population in complying zones 3.3% 23.4% Worse

Reasons for non-compliance Inadequate corrective actions 3 1 Worse National Faecal contamination 3 6 Improved Not monitored 25 21 Worse Non-recognised laboratory 0 0 - Not enough monitoring 13 4 Worse Too long between samples 9 5 Worse Too few days of the week 11 5 Worse Other 0 0 -

Other Supplies 79 10514 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 3 6 Worse Complying zones 3.7% 7.6% Worse Population in complying zones 2,437 2,789 Worse Population in complying zones 22.0% 26.5% Worse

Reasons for non-compliance Inadequate corrective actions 3 1 Worse National Faecal contamination 4 2 Worse Not monitored 70 62 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 4 5 Improved Too long between samples 4 6 Improved Too few days of the week 9 11 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 61 Protozoan Compliance Proportion of supplies LA Supplies 56 58 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 4 10 Worse Complying plants 7.1% 17.2%

School/ECC Supplies 41 40 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Percentage of plants comply 0.0% 2.5%

Other Supplies 80 77 Other water treatment plants 2004 2003 Trend Number of complying plants 1 3 Worse Complying plants 1.3% 3.9%

Chemical Compliance Supplies with chemical assignments No. Population LA 34 94.4% 148,704 99.4% School/ECC 0 0.0% 0 0.0% Other 2 5.6% 900 0.6% Total 36 149,604

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 6 14 Worse Population in complying zones 28,200 97,614 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 1 Worse Population in complying zones 0 200 Worse

General Comment (as derived from appendices) LA-run supplies - Most of the rural supplies do not achieve protozoal compliance; for these supplies the optimal means of achieving protozoal compliance should be determined. School/ECC supplies - monitoring programmes need to be established in most of these supplies in the Pacific Health region; a lead by the DHB is suggested. Excessive E. coli transgressions occurred in several schools; it would be helpful to determine whether additional treatment or improved procedures are required and, if the former, to advise the Ministry of Education. Many other schools/ECCs are not monitored enough; it would be useful for the DHB to ascertain and remedy the impediments to full monitoring. Monitoring of several school/ECC supplies ceased during 2004; the reasons for this should be sought and monitoring re-established or the reasons why not reported. Other supplies - a large proportion are not monitored; some initiative by the DHB may be warranted.

Annual Review of Drinking-water Quality in New Zealand 2004 62 KAWERAU DISTRICT

Distribution Zones No. Population LA 2 100.0% 8,000 100.0% School/ECC 0 0.0% 0 0.0% Complied Other 0 0.0% 0 0.0% Total 2 8,000 Did not comply

Bacteriological Compliance

LA Supplies 2 8000 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 2 Worse Complying zones 50.0% 100.0% Worse Population in complying zones 1,000 8,000 Worse Population in complying zones 12.5% 100.0% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 0 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 1 0 Worse Too few days of the week 1 0 Worse Other 0 0 -

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 00 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Annual Review of Drinking-water Quality in New Zealand 2004 63 Protozoan Compliance Proportion of supplies LA Supplies 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 00 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 8,000 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 8,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Neither of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Overall compliance has declined since 2003. Bacteriological transgressions in the Kawerau supply were not followed by immediate corrective action. This means that the risk of faecal contamination in these supplies is not being addressed. It is recommended that the adequacy and operation of the water treatment plants be reviewed and improved as a matter of priority. No monitoring was undertaken for any of the P2 assignations in the district: a situation that has not changed since 2003. Monitoring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 64 OPOTIKI DISTRICT

Distribution Zones No. Population LA 5 20.8% 5,800 75.6% School/ECC 9 37.5% 580 7.6% Complied Other 10 41.7% 1,290 16.8% Total 24 7,670 Did not comply

Bacteriological Compliance

LA Supplies 5 6290 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 20.0% 0.0% Improved Population in complying zones 410 0 Improved Population in complying zones 7.1% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 2 Worse Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 4 Resolved Too long between samples 0 4 Resolved Too few days of the week 0 4 Resolved Other 0 0 -

School/ECC Supplies 9 580 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 4 Worse Complying zones 11.1% 44.4% Worse Population in complying zones 50 370 Worse Population in complying zones 8.6% 63.8% Worse

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 2 5 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 8 0 Worse Too long between samples 5 0 Worse Too few days of the week 5 0 Worse Other 0 0 -

Other Supplies 10 1290 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 2 Worse Complying zones 10.0% 20.0% Worse Population in complying zones 100 250 Worse Population in complying zones 7.8% 19.4% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 0 Worse Not monitored 8 8 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 1 0 Worse Too few days of the week 1 0 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 65 Protozoan Compliance Proportion of supplies LA Supplies 55 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 20.0%

School/ECC Supplies 99 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 10 10 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 10.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 5,100 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 5,100

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 2 2 Same Population in complying zones 5,100 5,100 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Only one of the supplies complied in 2004. Three supplies failed due to excessive E. coli transgressions and one was not monitored. Priority should be given to investigating and resolving the E. coli transgressions although the monitoring schedule should also be improved.

Annual Review of Drinking-water Quality in New Zealand 2004 66 ROTORUA DISTRICT

Distribution Zones No. Population LA 12 35.3% 61,230 95.4% School/ECC 8 23.5% 622 1.0% Complied Other 14 41.2% 2,346 3.7% Total 34 64,198 Did not comply

Bacteriological Compliance

LA Supplies 13 61330 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 6 7 Worse Complying zones 50.0% 53.8% Worse Population in complying zones 8,020 7,670 Improved Population in complying zones 13.1% 12.5% Improved

Reasons for non-compliance Inadequate corrective actions 2 1 Worse National Faecal contamination 4 4 Same Not monitored 0 0 - Non-recognised laboratory 0 1 Resolved Not enough monitoring 1 2 Improved Too long between samples 2 3 Improved Too few days of the week 1 2 Improved Other 0 0 -

School/ECC Supplies 8 622 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 5 4 Worse Non-recognised laboratory 0 0 - Not enough monitoring 2 3 Improved Too long between samples 2 4 Improved Too few days of the week 3 4 Improved Other 0 0 -

Other Supplies 13 2296 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 2 1 Worse National Faecal contamination 2 1 Worse Not monitored 8 8 Same Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 2 1 Worse Too few days of the week 6 5 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 67 Protozoan Compliance Proportion of supplies LA Supplies 11 12 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 8.3%

School/ECC Supplies 88 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Percentage of plants comply 0.0% 12.5%

Other Supplies 15 14 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 8 88.9% 60,230 98.9% School/ECC 0 0.0% 0 0.0% Other 1 11.1% 700 1.1% Total 9 60,930

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Overall bacteriological compliance declined slightly since 2003. Excessive E. coli transgressions occurred in four supplies and inadequate monitoring in four with immediate corrective actions not being carried out in two of these. This puts the public at greater risk of waterborne disease. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. Compliance was not shown for any P2 assignations due to no or inadequate monitoring. P2 monitoring programmes need to be established or enhanced for these supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 68 TAUPO DISTRICT

Distribution Zones No. Population LA 24 42.9% 32,170 92.6% School/ECC 7 12.5% 530 1.5% Complied Other 25 44.6% 2,054 5.9% Total 56 34,754 Did not comply

Bacteriological Compliance

LA Supplies 24 32170 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 19 23 Worse Complying zones 79.2% 95.8% Worse Population in complying zones 21,749 32,145 Worse Population in complying zones 67.6% 99.9% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 2 0 Worse Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 7 530 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 5 Worse Complying zones 14.3% 71.4% Worse Population in complying zones 60 395 Worse Population in complying zones 11.3% 74.5% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 4 2 Worse Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 1 0 Worse Too few days of the week 2 0 Worse Other 0 0 -

Other Supplies 24 1712 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 4.2% Worse Population in complying zones 0 200 Worse Population in complying zones 0.0% 11.7% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 24 19 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 3 Resolved Too long between samples 0 3 Resolved Too few days of the week 1 4 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 69 Protozoan Compliance Proportion of supplies LA Supplies 19 19 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 3 Worse Complying plants 0.0% 15.8%

School/ECC Supplies 77 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 24 23 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 4.3%

Chemical Compliance Supplies with chemical assignments No. Population LA 9 90.0% 28,882 99.3% School/ECC 0 0.0% 0 0.0% Other 1 10.0% 200 0.7% Total 10 29,082

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 2 Worse Population in complying zones 1,540 6,969 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 1 Worse Population in complying zones 0 200 Worse

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. There is a high degree of bacteriological compliance in the Taupo supplies. However, overall bacteriological compliance in the LA-run supplies has declined since 2003. Two supplies failed to meet the maximum interval between successive samples criterion, which is easily remedied. More sampling is needed for the Turangi supply. A monitoring programme needs to be established for the single unmonitored supply. The cause of the E. coli transgression in the Centennial Drive supply needs to be determined and resolved. MAV exceedences were reported in six supplies during 2004, none of which were followed by appropriate corrective actions. The reasons for MAV transgressions need to be determined and appropriate corrective actions carried out.

Annual Review of Drinking-water Quality in New Zealand 2004 70 TAURANGA DISTRICT

Distribution Zones No. Population LA 2 28.6% 105,000 99.5% School/ECC 0 0.0% 0 0.0% Complied Other 5 71.4% 550 0.5% Total 7 105,550 Did not comply

Bacteriological Compliance

LA Supplies 2 88619 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 2 Same Complying zones 100.0% 100.0% Same Population in complying zones 105,000 88,619 Improved Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 4 345 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 5 4 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 71 Protozoan Compliance Proportion of supplies LA Supplies 22 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 100.0% 100.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 54 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 00

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 Worse Population in complying zones 44,000 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 - Population in complying zones 0 -

General Comment on LA_run Supplies (as derived from appendices) The Tauranga supplies returned to full compliance in 2004 following resolution of the the turbidity monitoring issue.

Annual Review of Drinking-water Quality in New Zealand 2004 72 WESTERN BAY OF PLENTY DISTRICT

Distribution Zones No. Population LA 8 17.8% 25,982 83.5% School/ECC 13 28.9% 1,208 3.9% Complied Other 24 53.3% 3,934 12.6% Total 45 31,124 Did not comply

Bacteriological Compliance

LA Supplies 10 26000 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 7 7 Same Complying zones 87.5% 70.0% Improved Population in complying zones 20,777 20,095 Improved Population in complying zones 80.0% 77.3% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 2 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 12 1173 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 12 11 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 1 1 Same Other 0 0 -

Other Supplies 24 3954 Other water supply zones 2004 2003 Trend Region Number of complying zones 2 3 Worse Complying zones 8.3% 12.5% Worse Population in complying zones 2,337 2,339 Worse Population in complying zones 59.4% 59.2% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 22 21 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 73 Protozoan Compliance Proportion of supplies LA Supplies 89 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 25.0% 22.2%

School/ECC Supplies 13 12 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 22 22 Other water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 4.5% 4.5%

Chemical Compliance Supplies with chemical assignments No. Population LA 5 100.0% 19,032 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 5 19,032

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 7 Worse Population in complying zones 0 20,545 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Most of the supplies did not achieve protozoal compliance during 2004; the optimal means of achieving protozoal compliance should be determined. The degree of zone bacteriological compliance of the LA-run supplies has improved slightly since 2003. Priority should be given to investigating and resolving the E. coli transgressions that occurred in the Katikati supply. A number, heavy metals and disinfection by-products, were non-compliant because of MAV transgressions and lack of adequate corrective action. A check to determine the source of the metals may allow the water be designated as aggressive and compliance to be achieved through public notification of the need to flush taps before drawing water for use. Investigations of how the by-product concentrations may be reduced should assist in achieving compliance.

Annual Review of Drinking-water Quality in New Zealand 2004 74 WHAKATANE DISTRICT

Distribution Zones No. Population LA 12 60.0% 31,260 96.0% School/ECC 4 20.0% 370 1.1% Complied Other 4 20.0% 917 2.8% Total 20 32,547 Did not comply

Bacteriological Compliance

LA Supplies 12 31260 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 6 3 Improved Complying zones 50.0% 25.0% Improved Population in complying zones 20,860 21,200 Worse Population in complying zones 66.7% 67.8% Worse

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 2 4 Improved Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 3 Resolved Too long between samples 1 3 Improved Too few days of the week 4 6 Improved Other 0 0 -

School/ECC Supplies 4 370 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 4 4 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Other Supplies 4 917 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 1 Same Not monitored 3 2 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 1 1 Same Too long between samples 1 2 Improved Too few days of the week 1 2 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 75 Protozoan Compliance Proportion of supplies LA Supplies 10 10 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 10.0%

School/ECC Supplies 44 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 44 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 8 100.0% 27,460 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 8 27,460

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 3 2 Improved Population in complying zones 21,560 21,000 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. The number of bacteriologically compliant zones doubled in 2004. However, five of these were technically non-compliant due to minor deficiencies in zone monitoring; compliance was given to these supplies on the understanding that the deficiencies will be corrected in 2005. A monitoring programme needs to be established for the Ruatahuna Village supply. Excessive E. coli transgressions occurred in two supplies, both of which were not followed by immediate corrective actions. This puts the public at greater risk of waterborne disease. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. While a major percentage of the P2 assignations in the district were in non-compliance, the situation was an improvement on that in 2003 when non-compliance arose primarily because of no samples being taken at all. However, MAV transgressions indicate potential problems and need to be investigated and always followed by immediate corrective action.

Annual Review of Drinking-water Quality in New Zealand 2004 76 TAIRAWHITI HEALTH DISTRICT

Distribution Zones No. Population LA 5 8.9% 30,820 90.4% School/ECC 46 82.1% 2,840 8.3% Complied Other 5 8.9% 430 1.3% Total 56 34,090 Did not comply

Bacteriological Compliance

LA Supplies 5 30820 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 2 3 Worse Complying zones 40.0% 60.0% Worse Population in complying zones 30,200 30,800 Worse Population in complying zones 98.0% 99.9% Worse

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 3 1 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 2 2 Same Too few days of the week 2 2 Same Other 0 0 -

School/ECC Supplies 47 2865 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 2 Resolved National Faecal contamination 6 6 Same Not monitored 32 33 Improved Non-recognised laboratory 0 0 - Not enough monitoring 14 8 Worse Too long between samples 14 5 Worse Too few days of the week 14 13 Worse Other 0 0 -

Other Supplies 4 384 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 2 1 Worse Not monitored 2 1 Worse Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 2 2 Same Too few days of the week 3 3 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 77 Protozoan Compliance Proportion of supplies LA Supplies 66 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 33.3% 33.3%

School/ECC Supplies 46 47 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 54 Other water treatment plants 2004 2003 Trend Number of complying plants 1 0 Improved Complying plants 20.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 30,600 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 30,600

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 2 1 Improved Population in complying zones 30,600 30,000 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment (as derived from appendices) Only the Gisborne City supply achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for the remainder. LA-run supplies - Compliance declined during 2004. The water supplier did not take immediate approipriate corrective actions following transgressions; they should be strongly encouraged to do so. However, it is understood that the supply status of the two supplies involved is being changed; this will need formal notification through WINZ. School/ECC supplies - none of these water supplies complied in 2004. Most did not monitor their water quality; the DHB should determine the reasons for this so that a suitable approach may be developed to help initiate monitoring programmes Bacteriological failures occurred in six schools/ECCs; it would be useful to find out whether additional treatment or improved procedures are required and, if the former, to advise the Ministry of Education. Other supplies - none of the four private supplies registered in this district were adequately monitored; this needs to be addressed.

Annual Review of Drinking-water Quality in New Zealand 2004 78 GISBORNE DISTRICT

Distribution Zones No. Population LA 5 8.9% 30,820 90.4% School/ECC 46 82.1% 2,840 8.3% Complied Other 5 8.9% 430 1.3% Total 56 34,090 Did not comply

Bacteriological Compliance

LA Supplies 5 30820 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 3 Worse Complying zones 40.0% 60.0% Worse Population in complying zones 30,200 30,800 Worse Population in complying zones 98.0% 99.9% Worse

School/ECC Supplies 47 2865 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Other Supplies 4 384 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Annual Review of Drinking-water Quality in New Zealand 2004 79 Protozoan Compliance Proportion of supplies LA Supplies 66 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 33.3% 33.3%

School/ECC Supplies 46 47 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 54 Other water treatment plants 2004 2003 Trend Number of complying plants 1 0 Improved Complying plants 20.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 30,600 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 30,600

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 2 1 Improved Population in complying zones 30,600 30,000 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Only the Gisborne City supply achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for the remainder. Overall bacteriological compliance in the LA-run supplies has declined since 2003. Excessive E. coli transgressions occurred in two supplies with immediate corrective actions not being carried out intwo of these. This puts the public at greater risk of waterborne disease. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. It is understood that the supply status of the two supplies involved is being changed; this will need formal notification through WINZ.

Annual Review of Drinking-water Quality in New Zealand 2004 80 TARANAKI HEALTH DISTRICT

Distribution Zones No. Population LA 28 33.3% 82,787 96.1% School/ECC 32 38.1% 1,525 1.8% Complied Other 24 28.6% 1,860 2.2% Total 84 86,172 Did not comply

Bacteriological Compliance

LA Supplies 29 83367 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 15 25 Worse Complying zones 53.6% 86.2% Worse Population in complying zones 62,487 82,077 Worse Population in complying zones 75.5% 98.5% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 4 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 4 1 Worse Too few days of the week 6 2 Worse Other 0 0 -

School/ECC Supplies 36 1633 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 0 2 Worse Complying zones 0.0% 5.6% Worse Population in complying zones 0 120 Worse Population in complying zones 0.0% 7.3% Worse

Reasons for non-compliance Inadequate corrective actions 3 1 Worse National Faecal contamination 4 3 Worse Not monitored 20 26 Improved Non-recognised laboratory 0 0 - Not enough monitoring 11 8 Worse Too long between samples 11 8 Worse Too few days of the week 12 8 Worse Other 0 0 -

Other Supplies 23 1835 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 2 1 Improved Complying zones 8.3% 4.3% Improved Population in complying zones 927 852 Improved Population in complying zones 49.8% 46.4% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 1 Resolved Not monitored 20 18 Worse Non-recognised laboratory 0 2 Resolved Not enough monitoring 2 2 Same Too long between samples 2 4 Improved Too few days of the week 2 2 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 81 Protozoan Compliance Proportion of supplies LA Supplies 19 19 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 5.3% 5.3%

School/ECC Supplies 32 36 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 24 23 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 17 94.4% 78,997 98.9% School/ECC 0 0.0% 0 0.0% Other 1 5.6% 852 1.1% Total 18 79,849

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 14 5 Improved Population in complying zones 74,997 18,770 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment (as derived from appendices) Protozoal compliance was only achieved in some of the New Plymouth supplies; the optimal means of achieving protozoal compliance should be determined for the remainder. LA-run supplies - ☺ Stratford District Council is to be commended for maintaining complete compliance in their supplies during 2004. South Taranaki District Council should be encouraged to heed the zone monitoring requirements. School/ECC supplies - 20 did not monitor their water quality; the DHB should investigate the reasons for this so that a suitable approach may be developed to help initiate monitoring programmes. Monitoring ceased in the Hiurangi Primary School supply during 2004. If this supply is no longer valid it should be deregistered - otherwise monitoring should be re-established immediately. Other supplies - a large proportion are not monitored; some encouragement may be warranted.

Annual Review of Drinking-water Quality in New Zealand 2004 82 NEW PLYMOUTH DISTRICT

Distribution Zones No. Population LA 8 25.0% 54,177 97.9% School/ECC 12 37.5% 643 1.2% Complied Other 12 37.5% 523 0.9% Total 32 55,343 Did not comply

Bacteriological Compliance

LA Supplies 9 54567 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 8 9 Worse Complying zones 100.0% 100.0% Same Population in complying zones 54,177 54,567 Worse Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 13 648 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 2 Worse Complying zones 0.0% 15.4% Worse Population in complying zones 0 120 Worse Population in complying zones 0.0% 18.5% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 8 9 Improved Non-recognised laboratory 0 0 - Not enough monitoring 3 2 Worse Too long between samples 3 2 Worse Too few days of the week 4 2 Worse Other 0 0 -

Other Supplies 11 498 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 11 9 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 2 Improved Too few days of the week 1 1 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 83 Protozoan Compliance Proportion of supplies LA Supplies 44 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 25.0% 25.0%

School/ECC Supplies 12 13 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 12 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 7 100.0% 53,577 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 7 53,577

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 7 1 Improved Population in complying zones 53,577 3,500 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Only three of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for the remainder. While all supplies complied bacteriologically, four supplies were technically non- compliant due to minor deficiencies in zone monitoring; compliance was given to these supplies on the understanding that the deficiencies will be corrected in 2005.

Annual Review of Drinking-water Quality in New Zealand 2004 84 SOUTH TARANAKI DISTRICT

Distribution Zones No. Population LA 17 45.9% 22,870 92.5% School/ECC 11 29.7% 569 2.3% Complied Other 9 24.3% 1,272 5.1% Total 37 24,711 Did not comply

Bacteriological Compliance

LA Supplies 17 23060 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 4 13 Worse Complying zones 23.5% 76.5% Worse Population in complying zones 2,570 21,770 Worse Population in complying zones 11.2% 94.4% Worse

School/ECC Supplies 14 659 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 2 Improved Not monitored 8 12 Improved Non-recognised laboratory 0 0 - Not enough monitoring 3 2 Worse Too long between samples 3 2 Worse Too few days of the week 3 2 Worse Other 0 0 -

Other Supplies 9 1272 Other water supply zones 2004 2003 Trend Region Number of complying zones 2 1 Improved Complying zones 22.2% 11.1% Improved Population in complying zones 927 852 Improved Population in complying zones 72.9% 67.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 1 Resolved Not monitored 6 6 Same Non-recognised laboratory 0 2 Resolved Not enough monitoring 1 1 Same Too long between samples 1 2 Improved Too few days of the week 1 1 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 85 Protozoan Compliance Proportion of supplies LA Supplies 12 12 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 11 14 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 99 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 9 90.0% 20,020 95.9% School/ECC 0 0.0% 0 0.0% Other 1 10.0% 852 4.1% Total 10 20,872

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 6 3 Improved Population in complying zones 16,020 9,870 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. A decline in bacteriological compliance has occurred since 2003. Adherence to the maximum interval between samples and minimum days-of-the-week criteria is required if compliance is to be achieved in future. Three supplies failed due to excessive E. coli transgressions, the causes of which need to be investigated to determine whether additional treatment or improved procedures are required. While five of the P2 assignations in the district did not comply, the situation has improved since 2003 when most non-compliance was caused by not monitoring at all. However, MAV transgressions indicate potential problems and need to be investigated and always followed by immediate corrective action. Also, the P2 monitoring programme needs to include analysis of trichloroacetic acid.

Annual Review of Drinking-water Quality in New Zealand 2004 86 STRATFORD DISTRICT

Distribution Zones No. Population LA 3 20.0% 5,740 93.8% School/ECC 9 60.0% 313 5.1% Complied Other 3 20.0% 65 1.1% Total 15 6,118 Did not comply

Bacteriological Compliance

LA Supplies 3 5740 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 3 3 Same Complying zones 100.0% 100.0% Same Population in complying zones 5,740 5,740 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 9 326 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 2 0 Worse Not monitored 4 5 Improved Non-recognised laboratory 0 0 - Not enough monitoring 5 4 Worse Too long between samples 5 4 Worse Too few days of the week 5 4 Worse Other 0 0 -

Other Supplies 365 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 3 3 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 87 Protozoan Compliance Proportion of supplies LA Supplies 33 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 99 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 33 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 5,400 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 5,400

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 1 Same Population in complying zones 5,400 5,400 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance of LA-run supplies was maintained in 2004. However, none of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined.

Annual Review of Drinking-water Quality in New Zealand 2004 88 HAWKES BAY HEALTH DISTRICT

Distribution Zones No. Population LA 31 19.6% 122,568 91.1% School/ECC 57 36.1% 3,824 2.8% Complied Other 70 44.3% 8,116 6.0% Total 158 134,508 Did not comply

Bacteriological Compliance

LA Supplies 32 122568 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 26 20 Improved Complying zones 83.9% 62.5% Improved Population in complying zones 122,258 115,330 Improved Population in complying zones 99.7% 94.1% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 1 Worse Not monitored 1 2 Improved Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 1 Resolved Too few days of the week 4 9 Improved Other 0 0 -

School/ECC Supplies 60 3919 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 2 2 Same Complying zones 3.5% 3.3% Improved Population in complying zones 179 141 Improved Population in complying zones 4.7% 3.6% Improved

Reasons for non-compliance Inadequate corrective actions 4 6 Improved National Faecal contamination 4 6 Improved Not monitored 35 35 Same Non-recognised laboratory 2 3 Improved Not enough monitoring 20 22 Improved Too long between samples 20 22 Improved Too few days of the week 20 22 Improved Other 0 0 -

Other Supplies 65 6912 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 5 4 Improved Complying zones 7.1% 6.2% Improved Population in complying zones 2,329 2,264 Improved Population in complying zones 28.7% 32.8% Worse

Reasons for non-compliance Inadequate corrective actions 2 2 Same National Faecal contamination 3 2 Worse Not monitored 44 44 Same Non-recognised laboratory 1 2 Improved Not enough monitoring 19 14 Worse Too long between samples 19 14 Worse Too few days of the week 20 17 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 89 Protozoan Compliance Proportion of supplies LA Supplies 38 38 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 23 25 Worse Complying plants 60.5% 65.8%

School/ECC Supplies 57 59 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 83 79 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 1.3%

Chemical Compliance Supplies with chemical assignments No. Population LA 11 84.6% 88,133 97.0% School/ECC 0 0.0% 0 0.0% Other 2 15.4% 2,718 3.0% Total 13 90,851

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 7 6 Improved Population in complying zones 70,860 48,690 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 2 2 Same Population in complying zones 2,718 2,588 Improved

General Comment (as derived from appendices) Protozoal compliance was not achieved in most of the supplies; the optimal means of achieving protozoal compliance should be determined for the remainder. LA-run supplies - ☺ Napier City, Hastings and Wairoa District Councils are to be commended for their achievement of attaining complete compliance in their supplies during 2004. School/ECC supplies - 36 did not monitor their water quality; it would be useful to determine the reasons for this so that a suitable approach may be developed to help initiate monitoring programmes. Most of the other supplies were not monitored often enough; the DHB should ascertain the impediments to full monitoring monitoring. Bacteriological failures occurred in five supplies; it would be useful to determine whether additional treatment or improved procedures are required and, where appropriate, to advise the Ministry of Education. In addition, four of these schools/ECCs did not carry out appropriate corrective actions following an E. coli transgression - some education of the operators about the public health significance of drinking E. coli - contaminated water is warranted. Other supplies - a large proportion are not monitored; some encouragement may be necessary. Hawkes Bay Hospital should be congratulated for undertakening steps to be compliant with respect to its aggressive designation.

Annual Review of Drinking-water Quality in New Zealand 2004 90 CENTRAL HAWKES BAY DISTRICT

Distribution Zones No. Population LA 9 27.3% 6,781 76.2% School/ECC 12 36.4% 923 10.4% Complied Other 12 36.4% 1,195 13.4% Total 33 8,899 Did not comply

Bacteriological Compliance

LA Supplies 10 6781 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 5 0 Improved Complying zones 55.6% 0.0% Improved Population in complying zones 6,591 0 Improved Population in complying zones 97.2% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 0 Worse Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 1 Resolved Too few days of the week 4 9 Improved Other 0 0 -

School/ECC Supplies 13 976 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 2 1 Improved Complying zones 16.7% 7.7% Improved Population in complying zones 179 109 Improved Population in complying zones 19.4% 11.2% Improved

Reasons for non-compliance Inadequate corrective actions 2 3 Improved National Faecal contamination 2 3 Improved Not monitored 4 3 Worse Non-recognised laboratory 2 3 Improved Not enough monitoring 6 8 Improved Too long between samples 6 8 Improved Too few days of the week 6 8 Improved Other 0 0 -

Other Supplies 10 1060 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 2 Improved National Faecal contamination 2 2 Same Not monitored 4 5 Improved Non-recognised laboratory 1 2 Improved Not enough monitoring 6 4 Worse Too long between samples 6 3 Worse Too few days of the week 7 5 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 91 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 14.3% 14.3%

School/ECC Supplies 13 13 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 10 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 4 100.0% 6,045 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 4 6,045

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 3 3 Same Population in complying zones 3,045 2,975 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Only the Takapau Township supply achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for the remainder. A large improvement in bacteriological compliance was achieved in 2004. However, three supplies failed due to excessive E. coli transgressions; the cause of the E. coli transgressions needs to be determined and resolved. It is recommended that the adequacy and operation of the water treatment plants be reviewed and improved as a matter of priority. Compliance was shown for all P2 assignations, except for the lead transgression in the Waipukurau high pressure zone, which warrants investigation.

Annual Review of Drinking-water Quality in New Zealand 2004 92 CHATHAM ISLANDS

Distribution Zones No. Population LA 1 25.0% 120 44.6% School/ECC 2 50.0% 89 33.1% Complied Other 1 25.0% 60 22.3% Total 4 269 Did not comply

Bacteriological Compliance

LA Supplies 1 120 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

School/ECC Supplies 299 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 1 1 Same Other 0 0 -

Other Supplies 1 110 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 100.0% 0.0% Improved Population in complying zones 60 0 Improved Population in complying zones 100.0% 0.0% Improved

Annual Review of Drinking-water Quality in New Zealand 2004 93 Protozoan Compliance Proportion of supplies LA Supplies 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 22 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 00

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

General Comment on LA_run Supplies (as derived from appendices) The single supply was again not monitored. This situation needs to be addressed. Also, the optimal means of achieving protozoal compliance should be determined.

Annual Review of Drinking-water Quality in New Zealand 2004 94 HASTINGS DISTRICT

Distribution Zones No. Population LA 14 16.3% 61,507 89.4% School/ECC 26 30.2% 1,877 2.7% Complied Other 46 53.5% 5,394 7.8% Total 86 68,778 Did not comply

Bacteriological Compliance

LA Supplies 14 61507 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 14 13 Improved Complying zones 100.0% 92.9% Improved Population in complying zones 61,507 61,170 Improved Population in complying zones 100.0% 99.5% Improved

School/ECC Supplies 27 1935 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 3.7% Worse Population in complying zones 0 32 Worse Population in complying zones 0.0% 1.7% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 19 19 Same Non-recognised laboratory 0 0 - Not enough monitoring 7 7 Same Too long between samples 7 7 Same Too few days of the week 7 7 Same Other 0 0 -

Other Supplies 45 5337 Other water supply zones 2004 2003 Trend Region Number of complying zones 4 4 Same Complying zones 8.7% 8.9% Worse Population in complying zones 2,269 2,264 Improved Population in complying zones 42.1% 42.4% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 0 Worse Not monitored 29 30 Improved Non-recognised laboratory 0 0 - Not enough monitoring 13 10 Worse Too long between samples 13 11 Worse Too few days of the week 13 11 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 95 Protozoan Compliance Proportion of supplies LA Supplies 17 17 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 12 13 Worse Complying plants 70.6% 76.5%

School/ECC Supplies 26 27 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 60 59 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 1.7%

Chemical Compliance Supplies with chemical assignments No. Population LA 6 75.0% 59,988 95.7% School/ECC 0 0.0% 0 0.0% Other 2 25.0% 2,718 4.3% Total 8 62,706

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 3 3 Same Population in complying zones 45,715 45,715 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 2 2 Same Population in complying zones 2,718 2,588 Improved

General Comment on LA_run Supplies (as derived from appendices) Full bacteriological compliance was achieved in 2004. Protozoal compliance was achieved in all but five supplies; the optimal means of achieving protozoal compliance should be determined for the remainder. MAV exceedences were reported in three supplies during 2004, none of which were followed by appropriate corrective actions. The reasons for MAV transgressions need to be determined and appropriate corrective actions carried out.

Annual Review of Drinking-water Quality in New Zealand 2004 96 NAPIER CITY

Distribution Zones No. Population LA 3 42.9% 49,180 97.3% School/ECC 3 42.9% 342 0.7% Complied Other 1 14.3% 1,000 2.0% Total 7 50,522 Did not comply

Bacteriological Compliance

LA Supplies 3 49180 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 3 3 Same Complying zones 100.0% 100.0% Same Population in complying zones 49,180 49,180 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 3 338 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 1 2 Improved Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 2 1 Worse Too few days of the week 2 1 Worse Other 0 0 -

Other Supplies 1 110 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Annual Review of Drinking-water Quality in New Zealand 2004 97 Protozoan Compliance Proportion of supplies LA Supplies 10 10 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 10 10 Same Complying plants 100.0% 100.0%

School/ECC Supplies 22 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 22 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 22,100 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 22,100

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 22,100 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance was maintained in 2004. Protozoal compliance was achieved in all supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 98 WAIROA DISTRICT

Distribution Zones No. Population LA 4 14.3% 4,980 82.5% School/ECC 14 50.0% 593 9.8% Complied Other 10 35.7% 467 7.7% Total 28 6,040 Did not comply

Bacteriological Compliance

LA Supplies 4 4980 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 4 4 Same Complying zones 100.0% 100.0% Same Population in complying zones 4,980 4,980 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 15 571 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 2 Improved National Faecal contamination 1 2 Improved Not monitored 10 10 Same Non-recognised laboratory 0 0 - Not enough monitoring 4 5 Improved Too long between samples 4 5 Improved Too few days of the week 4 5 Improved Other 0 0 -

Other Supplies 8 295 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 10 8 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 99 Protozoan Compliance Proportion of supplies LA Supplies 33 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 33.3%

School/ECC Supplies 14 15 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 97 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 00

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Full bacteriological compliance was recorded in 2004. However, two of the four supplies were technically non-compliant due to minor deficiencies in zone monitoring; compliance was given to these supplies on the understanding that the deficiencies will be corrected in 2005.

Annual Review of Drinking-water Quality in New Zealand 2004 100 MIDCENTRAL HEALTH DISTRICT

Distribution Zones No. Population LA 44 29.5% 180,015 86.3% School/ECC 63 42.3% 4,327 2.1% Complied Other 42 28.2% 24,338 11.7% Total 149 208,680 Did not comply

Bacteriological Compliance

LA Supplies 41 170235 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 21 28 Worse Complying zones 47.7% 68.3% Worse Population in complying zones 134,285 158,410 Worse Population in complying zones 74.6% 93.1% Worse

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 2 Improved Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 8 3 Worse Too long between samples 12 5 Worse Too few days of the week 20 12 Worse Other 0 0 -

School/ECC Supplies 63 4265 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 1 0 Improved Complying zones 1.6% 0.0% Improved Population in complying zones 380 0 Improved Population in complying zones 8.8% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 4 0 Worse National Faecal contamination 5 3 Worse Not monitored 46 49 Improved Non-recognised laboratory 0 4 Resolved Not enough monitoring 16 14 Worse Too long between samples 16 13 Worse Too few days of the week 15 12 Worse Other 0 0 -

Other Supplies 43 24543 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 9 6 Improved Complying zones 21.4% 14.0% Improved Population in complying zones 18,636 17,970 Improved Population in complying zones 76.6% 73.2% Improved

Reasons for non-compliance Inadequate corrective actions 4 4 Same National Faecal contamination 8 7 Worse Not monitored 17 19 Improved Non-recognised laboratory 2 1 Worse Not enough monitoring 9 15 Improved Too long between samples 7 11 Improved Too few days of the week 10 12 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 101 Protozoan Compliance Proportion of supplies LA Supplies 44 42 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 7 12 Worse Complying plants 15.9% 28.6%

School/ECC Supplies 64 64 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 41 43 Other water treatment plants 2004 2003 Trend Number of complying plants 3 4 Worse Complying plants 7.3% 9.3%

Chemical Compliance Supplies with chemical assignments No. Population LA 17 85.0% 104,745 92.7% School/ECC 0 0.0% 0 0.0% Other 3 15.0% 8,300 7.3% Total 20 113,045

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 7 6 Improved Population in complying zones 25,900 23,200 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 1,000 0 Improved

Annual Review of Drinking-water Quality in New Zealand 2004 102 HOROWHENUA DISTRICT

Distribution Zones No. Population LA 5 35.7% 26,345 97.0% School/ECC 6 42.9% 511 1.9% Complied Other 3 21.4% 296 1.1% Total 14 27,152 Did not comply

Bacteriological Compliance

LA Supplies 5 26345 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 5 5 Same Complying zones 100.0% 100.0% Same Population in complying zones 26,345 26,345 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 5 412 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 5 4 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 1 1 Same Other 0 0 -

Other Supplies 3 296 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Annual Review of Drinking-water Quality in New Zealand 2004 103 Protozoan Compliance Proportion of supplies LA Supplies 55 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 65 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 33 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 4 100.0% 6,345 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 4 6,345

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 2 1 Improved Population in complying zones 4,300 1,600 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance was maintained in 2004. However, none of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Not enough heavy metal monitoring was carried out in the Tokomaru zone again; monitoring needs to be increased if compliance is to be achieved. MAV transgressions were reported for two supplies; the reasons for MAV transgressions need to be determined and appropriate corrective actions carried out.

Annual Review of Drinking-water Quality in New Zealand 2004 104 MANAWATU DISTRICT

Distribution Zones No. Population LA 7 18.4% 15,340 81.1% School/ECC 19 50.0% 1,734 9.2% Complied Other 12 31.6% 1,850 9.8% Total 38 18,924 Did not comply

Bacteriological Compliance

LA Supplies 7 15460 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 5 7 Worse Complying zones 71.4% 100.0% Worse Population in complying zones 14,540 15,460 Worse Population in complying zones 94.8% 100.0% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 1 0 Worse Too few days of the week 2 0 Worse Other 0 0 -

School/ECC Supplies 19 1590 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 5.3% 0.0% Improved Population in complying zones 380 0 Improved Population in complying zones 21.9% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 1 Resolved Not monitored 16 15 Worse Non-recognised laboratory 0 0 - Not enough monitoring 2 4 Improved Too long between samples 2 3 Improved Too few days of the week 1 2 Improved Other 0 0 -

Other Supplies 12 1870 Other water supply zones 2004 2003 Trend Region Number of complying zones 3 3 Same Complying zones 25.0% 25.0% Same Population in complying zones 1,265 1,050 Improved Population in complying zones 68.4% 56.1% Improved

Reasons for non-compliance Inadequate corrective actions 1 3 Improved National Faecal contamination 4 3 Worse Not monitored 2 2 Same Non-recognised laboratory 0 0 - Not enough monitoring 4 7 Improved Too long between samples 3 5 Improved Too few days of the week 4 5 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 105 Protozoan Compliance Proportion of supplies LA Supplies 88 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 19 19 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 50.0% 13,000 92.9% School/ECC 0 0.0% 0 0.0% Other 1 50.0% 1,000 7.1% Total 2 14,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 1 Same Population in complying zones 13,000 13,000 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 1,000 0 Improved

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Bacteriological compliance declined sharply during 2004 due to inadequate monitoring in the Himatangi Beach and Waituna West supplies. Improvements to the monitoring programme are needed if a greater level of compliance is to be achieved.

Annual Review of Drinking-water Quality in New Zealand 2004 106 PALMERSTON NORTH CITY

Distribution Zones No. Population LA 5 38.5% 73,600 80.7% School/ECC 3 23.1% 350 0.4% Complied Other 5 38.5% 17,201 18.9% Total 13 91,151 Did not comply

Bacteriological Compliance

LA Supplies 5 73600 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 5 5 Same Complying zones 100.0% 100.0% Same Population in complying zones 73,600 73,600 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 3 370 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 0 Worse Not monitored 1 3 Improved Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 2 0 Worse Too few days of the week 2 0 Worse Other 0 0 -

Other Supplies 5 17201 Other water supply zones 2004 2003 Trend Region Number of complying zones 4 2 Improved Complying zones 80.0% 40.0% Improved Population in complying zones 16,851 16,500 Improved Population in complying zones 98.0% 95.9% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 3 Resolved Too long between samples 0 3 Resolved Too few days of the week 0 3 Resolved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 107 Protozoan Compliance Proportion of supplies LA Supplies 66 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 6 6 Same Complying plants 100.0% 100.0%

School/ECC Supplies 33 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 56 Other water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 40.0% 33.3%

Chemical Compliance Supplies with chemical assignments No. Population LA 5 83.3% 73,600 94.2% School/ECC 0 0.0% 0 0.0% Other 1 16.7% 4,500 5.8% Total 6 78,100

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 4 4 Same Population in complying zones 8,600 8,600 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Complete bacteriological and protozoal compliance was achieved in 2004. Compliance was shown for all P2 assignations, except a fluoride assignation due to a MAV transgression, and an aggressiveness designation.

Annual Review of Drinking-water Quality in New Zealand 2004 108 RANGITIKEI DISTRICT

Distribution Zones No. Population LA 7 36.8% 10,030 94.9% School/ECC 12 63.2% 537 5.1% Complied Other 0 0.0% 0 0.0% Total 19 10,567 Did not comply

Bacteriological Compliance

LA Supplies 7 10030 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 3 Worse Complying zones 0.0% 42.9% Worse Population in complying zones 0 1,030 Worse Population in complying zones 0.0% 10.3% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 5 3 Worse Too long between samples 7 4 Worse Too few days of the week 7 4 Worse Other 0 0 -

School/ECC Supplies 10 505 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 11 9 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 1 1 Same Other 0 0 -

Other Supplies 1 150 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 109 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 3 Worse Complying plants 0.0% 42.9%

School/ECC Supplies 12 10 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 01 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 100.0% 6,800 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 3 6,800

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. The number of bacteriologically compliant supplies has dropped to zero since 2003. Non-compliance was caused in all cases by inadequate monitoring. Compliance will not improve unless this deficiency is addressed. Although non-compliance resulted for MAVs being transgressed for two P2 determinands, most P2 determinands were non-compliant because of inadequate monitoring. Ensuring that an adequate number of samples are taken should assist in increasing compliance.

Annual Review of Drinking-water Quality in New Zealand 2004 110 RUAPEHU DISTRICT

Distribution Zones No. Population LA 7 25.9% 8,964 70.6% School/ECC 11 40.7% 361 2.8% Complied Other 9 33.3% 3,365 26.5% Total 27 12,690 Did not comply

Bacteriological Compliance

Annual Review of Drinking-water Quality in New Zealand 2004 111 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 11 11 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 99 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 11.1%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 75.0% 8,000 74.1% School/ECC 0 0.0% 0 0.0% Other 1 25.0% 2,800 25.9% Total 4 10,800

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 112 TARARUA DISTRICT

Distribution Zones No. Population LA 7 31.8% 11,330 88.2% School/ECC 10 45.5% 547 4.3% Complied Other 5 22.7% 971 7.6% Total 22 12,848 Did not comply

Bacteriological Compliance

LA Supplies 7 11630 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 3 4 Worse Complying zones 42.9% 57.1% Worse Population in complying zones 9,600 11,200 Worse Population in complying zones 84.7% 96.3% Worse

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 1 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 3 3 Same Other 0 0 -

School/ECC Supplies 14 792 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 0 Worse Not monitored 6 10 Improved Non-recognised laboratory 0 1 Resolved Not enough monitoring 4 4 Same Too long between samples 4 4 Same Too few days of the week 4 4 Same Other 0 0 -

Other Supplies 5 992 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 20.0% 0.0% Improved Population in complying zones 100 0 Improved Population in complying zones 10.3% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 2 2 Same Non-recognised laboratory 1 1 Same Not enough monitoring 1 1 Same Too long between samples 1 0 Worse Too few days of the week 1 1 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 113 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 10 14 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 55 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 2,200 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 2,200

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined. Overall bacteriological compliance has declined slightly since 2003. The cause of the E. coli transgression in the Woodville supply needs to be determined and resolved. Three supplies failed to meet the minimum days-of-the-week criterion, which needs to be addressed if compliance is to be achieved in these supplies. Both supply zones experienced difficulties with disinfection by-products with MAV transgressions (and inadequate corrective action) occurring for all accept one assignation. Determination of the steps that could be taken to minimise by-product formation may assist in improving the level of compliance.

Annual Review of Drinking-water Quality in New Zealand 2004 114 WANGANUI DISTRICT

Distribution Zones No. Population LA 11 33.3% 40,570 96.3% School/ECC 11 33.3% 613 1.5% Complied Other 11 33.3% 945 2.2% Total 33 42,128 Did not comply

Bacteriological Compliance

LA Supplies 8 30370 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 3 3 Same Complying zones 27.3% 37.5% Worse Population in complying zones 10,200 29,475 Worse Population in complying zones 25.1% 97.1% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 2 0 Worse Too few days of the week 7 4 Worse Other 0 0 -

School/ECC Supplies 10 556 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 3 2 Worse Not monitored 5 6 Improved Non-recognised laboratory 0 2 Resolved Not enough monitoring 6 4 Worse Too long between samples 6 4 Worse Too few days of the week 6 4 Worse Other 0 0 -

Other Supplies 11 945 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 1 Same Complying zones 9.1% 9.1% Same Population in complying zones 420 420 Same Population in complying zones 44.4% 44.4% Same

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 8 9 Improved Non-recognised laboratory 1 0 Worse Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 2 0 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 115 Protozoan Compliance Proportion of supplies LA Supplies 97 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 3 Worse Complying plants 11.1% 42.9%

School/ECC Supplies 12 11 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 11 Other water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 9.1% 9.1%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 00

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

General Comment on LA_run Supplies (as derived from appendices) Protozoal compliance was achieved in only the Fordell Township supply; the optimal means of achieving protozoal compliance should be determined for the remainder. Bacteriological compliance has declined slightly since 2003, mostly due to inadequate monitoring. Improvements to the monitoring programme are needed if a greater level of compliance is to be achieved.

Annual Review of Drinking-water Quality in New Zealand 2004 116 HUTT VALLEY HEALTH DISTRICT

Distribution Zones No. Population LA 40 43.0% 411,946 98.7% School/ECC 10 10.8% 911 0.2% Complied Other 43 46.2% 4,516 1.1% Total 93 417,373 Did not comply

Bacteriological Compliance

LA Supplies 40 411496 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 39 33 Improved Complying zones 97.5% 82.5% Improved Population in complying zones 411,696 330,778 Improved Population in complying zones 99.9% 80.4% Improved

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 0 2 Resolved Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 1 2 Improved Too long between samples 0 4 Resolved Too few days of the week 1 3 Improved Other 0 1 Resolved

School/ECC Supplies 13 1003 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 3 1 Improved Complying zones 30.0% 7.7% Improved Population in complying zones 482 80 Improved Population in complying zones 52.9% 8.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 1 Same Not monitored 2 4 Improved Non-recognised laboratory 0 0 - Not enough monitoring 5 7 Improved Too long between samples 5 7 Improved Too few days of the week 4 8 Improved Other 0 0 -

Other Supplies 40 4451 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 5 9 Worse Complying zones 11.6% 22.5% Worse Population in complying zones 574 1,200 Worse Population in complying zones 12.7% 27.0% Worse

Reasons for non-compliance Inadequate corrective actions 8 3 Worse National Faecal contamination 13 6 Worse Not monitored 13 16 Improved Non-recognised laboratory 0 0 - Not enough monitoring 13 9 Worse Too long between samples 15 9 Worse Too few days of the week 13 14 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 117 Protozoan Compliance Proportion of supplies LA Supplies 25 25 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 7 5 Improved Complying plants 28.0% 20.0%

School/ECC Supplies 12 15 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 38 35 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 34 97.1% 401,176 100.0% School/ECC 0 0.0% 0 0.0% Other 1 2.9% 200 0.0% Total 35 401,376

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 29 24 Improved Population in complying zones 359,324 325,074 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 200 0 Improved

General Comment on LA_run Supplies (as derived from appendices) Protozoal compliance was not achieved in most of the rural supplies; the optimal means of achieving protozoal compliance should be determined for these supplies. LA-run supplies - ☺ Kapiti Coast, Carterton, and Masterton District Councils and Upper and Lower Hutt, Porirua and Wellington City Councils are to be commended for their achievement of complete bacteriological compliance during 2004. South Wairarapr District Council still has not initiated P2 monitoring. School/ECC supplies - Two supplies ceased to be monitored during 2004; the reasons for this should be investigated and reported. A further five supplies were inadequately monitored; it would be useful to determine the reasons for this so that a suitable approach may be developed to help initiate adequate monitoring programmes. Other supplies - there has been little change in compliance during 2004; further encouragement may be useful.

Annual Review of Drinking-water Quality in New Zealand 2004 118 CARTERTON DISTRICT

Distribution Zones No. Population LA 1 25.0% 4,200 94.0% School/ECC 2 50.0% 170 3.8% Complied Other 1 25.0% 100 2.2% Total 4 4,470 Did not comply

Bacteriological Compliance

LA Supplies 1 4200 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 1 Same Complying zones 100.0% 100.0% Same Population in complying zones 4,200 4,200 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 2 175 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 2 1 Worse Too few days of the week 2 1 Worse Other 0 0 -

Other Supplies 1 100 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 119 Protozoan Compliance Proportion of supplies LA Supplies 22 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 22 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 00

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

General Comment on LA_run Supplies (as derived from appendices) The sole LA-run supply achieved bacteriological compliance in 2004. However, protozoal compliance was not achieved; the optimal means of achieving protozoal compliance should be determined.

Annual Review of Drinking-water Quality in New Zealand 2004 120 KAPITI COAST DISTRICT

Distribution Zones No. Population LA 7 41.2% 39,950 97.4% School/ECC 0 0.0% 0 0.0% Complied Other 10 58.8% 1,055 2.6% Total 17 41,005 Did not comply

Bacteriological Compliance

LA Supplies 7 39950 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 7 7 Same Complying zones 100.0% 100.0% Same Population in complying zones 39,950 39,950 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 9 1005 Other water supply zones 2004 2003 Trend Region Number of complying zones 2 5 Worse Complying zones 20.0% 55.6% Worse Population in complying zones 430 760 Worse Population in complying zones 40.8% 75.6% Worse

Reasons for non-compliance Inadequate corrective actions 4 0 Worse National Faecal contamination 4 0 Worse Not monitored 3 4 Improved Non-recognised laboratory 0 0 - Not enough monitoring 3 0 Worse Too long between samples 4 0 Worse Too few days of the week 2 0 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 121 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 1 Same Complying plants 0.0% 14.3%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 98 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 5 83.3% 34,250 99.4% School/ECC 0 0.0% 0 0.0% Other 1 16.7% 200 0.6% Total 6 34,450

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 5 0 Improved Population in complying zones 34,250 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 200 0 Improved

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance of LA-run supplies was maintained in 2004. Protozoal compliance was not achieved in four supplies; the optimal means of achieving protozoal compliance should be determined for these supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 122 MASTERTON DISTRICT

Distribution Zones No. Population LA 2 11.8% 19,120 89.8% School/ECC 4 23.5% 485 2.3% Complied Other 11 64.7% 1,683 7.9% Total 17 21,288 Did not comply

Bacteriological Compliance

LA Supplies 3 19170 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 0 Improved Complying zones 100.0% 0.0% Improved Population in complying zones 19,120 0 Improved Population in complying zones 100.0% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 0 2 Resolved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 2 Resolved Other 0 1 Resolved

School/ECC Supplies 6 538 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 2 0 Improved Complying zones 50.0% 0.0% Improved Population in complying zones 400 0 Improved Population in complying zones 82.5% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 1 Same Not monitored 1 3 Improved Non-recognised laboratory 0 0 - Not enough monitoring 1 2 Improved Too long between samples 1 2 Improved Too few days of the week 1 3 Improved Other 0 0 -

Other Supplies 11 1753 Other water supply zones 2004 2003 Trend Region Number of complying zones 3 2 Improved Complying zones 27.3% 18.2% Improved Population in complying zones 144 300 Worse Population in complying zones 8.6% 17.1% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 5 2 Worse Not monitored 2 3 Improved Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 0 Worse Too few days of the week 1 5 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 123 Protozoan Compliance Proportion of supplies LA Supplies 23 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 68 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 10 10 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 19,000 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 19,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Complete bacteriological compliance was achieved in 2004. However, none of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Fluoride monitoring has increased in the Masterton supply but is still inadequate; flouride monitoring should be increased to weekly.

Annual Review of Drinking-water Quality in New Zealand 2004 124 PORIRUA CITY

Distribution Zones No. Population LA 6 66.7% 46,644 99.4% School/ECC 0 0.0% 0 0.0% Complied Other 3 33.3% 304 0.6% Total 9 46,948 Did not comply

Bacteriological Compliance

LA Supplies 6 46644 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 6 5 Improved Complying zones 100.0% 83.3% Improved Population in complying zones 46,644 46,444 Improved Population in complying zones 100.0% 99.6% Improved

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 2 254 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 0 1 Resolved Not monitored 1 0 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 2 Improved Too long between samples 2 2 Same Too few days of the week 2 2 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 125 Protozoan Compliance Proportion of supplies LA Supplies 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 21 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 6 100.0% 46,644 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 6 46,644

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 6 6 Same Population in complying zones 46,644 46,644 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance was achieved again in 2004. All supplies also complied with the protozoal requirements.

Annual Review of Drinking-water Quality in New Zealand 2004 126 SOUTH WAIRARAPA DISTRICT

Distribution Zones No. Population LA 4 33.3% 6,287 92.3% School/ECC 3 25.0% 176 2.6% Complied Other 5 41.7% 345 5.1% Total 12 6,808 Did not comply

Bacteriological Compliance

LA Supplies 4 6287 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 3 3 Same Complying zones 75.0% 75.0% Same Population in complying zones 6,037 6,037 Same Population in complying zones 96.0% 96.0% Same

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 0 1 Resolved Too few days of the week 1 1 Same Other 0 0 -

School/ECC Supplies 3 195 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 33.3% 0.0% Improved Population in complying zones 82 0 Improved Population in complying zones 46.6% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 1 0 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 3 Improved Too long between samples 1 3 Improved Too few days of the week 1 3 Improved Other 0 0 -

Other Supplies 5 360 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 1 Same Not monitored 2 3 Improved Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 1 2 Improved Too few days of the week 2 2 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 127 Protozoan Compliance Proportion of supplies LA Supplies 66 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 33 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 55 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 100.0% 6,037 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 3 6,037

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Bacteriological compliance has remained unchanged since 2003, with compliance being achieved in three of the four supplies. Attention to the monitoring criteria in the other zone should see a resumption of full bacteriological compliance. Also, the Greytown supply was technically non-compliant due to minor deficiencies in zone monitoring; compliance was given to these supplies on the understanding that the deficiencies will be corrected in 2005. P2 monitoring was still not carried out; this needs to be remedied immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 128 THE HUTT CITY

Distribution Zones No. Population LA 7 77.8% 95,969 99.9% School/ECC 0 0.0% 0 0.0% Complied Other 2 22.2% 140 0.1% Total 9 96,109 Did not comply

Bacteriological Compliance

LA Supplies 6 95469 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 7 6 Improved Complying zones 100.0% 100.0% Same Population in complying zones 95,969 95,469 Improved Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 2 140 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 2 Worse Complying zones 0.0% 100.0% Worse Population in complying zones 0 140 Worse Population in complying zones 0.0% 100.0% Worse

Annual Review of Drinking-water Quality in New Zealand 2004 129 Protozoan Compliance Proportion of supplies LA Supplies 54 Region National LA water treatment plants * 2004 2003 Trend Number of complying plants 4 3 Improved Complying plants 80.0% 75.0% * includes 3 Greater Wellington Water TPs School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 6 100.0% 95,469 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 6 95,469

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 6 6 Same Population in complying zones 95,469 95,469 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 130 UPPER HUTT CITY

Distribution Zones No. Population LA 2 22.2% 34,650 98.0% School/ECC 1 11.1% 80 0.2% Complied Other 6 66.7% 644 1.8% Total 9 35,374 Did not comply

Bacteriological Compliance

LA Supplies 2 34650 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 2 Same Complying zones 100.0% 100.0% Same Population in complying zones 34,650 34,650 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 180 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 100.0% Worse Population in complying zones 0 80 Worse Population in complying zones 0.0% 100.0% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 1 0 Worse Too few days of the week 0 0 - Other 0 0 -

Other Supplies 6 644 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 3 3 Same Non-recognised laboratory 0 0 - Not enough monitoring 3 3 Same Too long between samples 3 3 Same Too few days of the week 3 3 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 131 Protozoan Compliance Proportion of supplies LA Supplies 22 Region National LA water treatment plants * 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 50.0% 50.0% * includes 1 Greater Wellington Water TP School/ECC Supplies 11 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 55 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 34,650 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 34,650

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 2 2 Same Population in complying zones 34,650 34,650 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 132 WELLINGTON CITY

Distribution Zones No. Population LA 11 68.8% 165,126 99.9% School/ECC 0 0.0% 0 0.0% Complied Other 5 31.3% 245 0.1% Total 16 165,371 Did not comply

Bacteriological Compliance

LA Supplies 11 165126 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 11 9 Improved Complying zones 100.0% 81.8% Improved Population in complying zones 165,126 104,028 Improved Population in complying zones 100.0% 63.0% Improved

School/ECC Supplies 115 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

Other Supplies 4 195 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 2 3 Improved Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 3 1 Worse Too few days of the week 1 1 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 133 Protozoan Compliance Proportion of supplies LA Supplies 00 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants

School/ECC Supplies 01 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0%

Other Supplies 54 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 11 100.0% 165,126 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 11 165,126

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 10 10 Same Population in complying zones 148,311 148,311 Same

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The good record of bacteriological compliance was improved further in 2004; a perfect record has now been achieved for all zones. All supplies also complied with the protozoal requirements. Lead MAV exceedences were reported in the Eastern Wellington zone and which was not followed by appropriate corrective actions. The reasons for MAV transgressions need to be determined and appropriate corrective actions carried out.

Annual Review of Drinking-water Quality in New Zealand 2004 134 NELSON-MARLBOROUGH HEALTH DISTRICT

Distribution Zones No. Population LA 26 17.9% 92,361 90.3% School/ECC 28 19.3% 3,942 3.9% Complied Other 91 62.8% 6,015 5.9% Total 145 102,318 Did not comply

Bacteriological Compliance

LA Supplies 26 88911 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 15 14 Improved Complying zones 57.7% 53.8% Improved Population in complying zones 61,060 57,754 Improved Population in complying zones 66.1% 65.0% Improved

Reasons for non-compliance Inadequate corrective actions 2 2 Same National Faecal contamination 4 3 Worse Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 2 5 Improved Too long between samples 5 7 Improved Too few days of the week 8 9 Improved Other 0 0 -

School/ECC Supplies 29 4287 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 6 8 Worse Complying zones 21.4% 27.6% Worse Population in complying zones 983 1,209 Worse Population in complying zones 24.9% 28.2% Worse

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 4 7 Improved Not monitored 7 7 Same Non-recognised laboratory 0 0 - Not enough monitoring 14 10 Worse Too long between samples 14 10 Worse Too few days of the week 14 10 Worse Other 0 0 -

Other Supplies 93 6072 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 4 6 Worse Complying zones 4.4% 6.5% Worse Population in complying zones 1,995 869 Improved Population in complying zones 33.2% 14.3% Improved

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 11 5 Worse Not monitored 67 73 Improved Non-recognised laboratory 0 0 - Not enough monitoring 16 10 Worse Too long between samples 17 12 Worse Too few days of the week 18 11 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 135 Protozoan Compliance Proportion of supplies LA Supplies 33 33 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 9 9 Same Complying plants 27.3% 27.3%

School/ECC Supplies 27 28 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 94 96 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 1.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 10 83.3% 86,727 97.5% School/ECC 0 0.0% 0 0.0% Other 2 16.7% 2,180 2.5% Total 12 88,907

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 4 3 Improved Population in complying zones 56,700 4,700 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 1 Worse Population in complying zones 0 1,500 Worse

General Comment (as derived from appendices) Protozoal compliance was not achieved in most of the rural supplies; the optimal means of achieving protozoal compliance should be determined for these supplies. LA-run supplies - ☺ Nelson City Council is to be commended for maintaining complete bacteriological and protozoal compliance during 2004. Marlborough District Council needs to begin to improve their procedures and carry out immediate corrective actions when E. coli transgressions occur. School/ECC supplies - none of these supplies in the Marlborough district complied (they were either not monitored or failed bacteriologically), and all of the complying schools/ECCs were situated in the Nelson or Tasman district; it would be instructive to determine the reasons for this so that a more effective monitoring approach may be used for schools/ECCs in the Marlborough district. Also monitoring ceased in the Tuamarina School supply during 2004; if this supply is no longer valid it should be deregistered - otherwise monitoring should be re-established immediately. Motueka High School has been asked to begin heavy metal P2 monitoring but has not done so; a reminder is warranted. Other supplies - a large proportion were not monitored; some encouragement may be warranted. Woodbourne RNZAF base conduct flouride monitoring but needs to ensure all weekly samples are taken.

Annual Review of Drinking-water Quality in New Zealand 2004 136 MARLBOROUGH DISTRICT

Distribution Zones No. Population LA 8 9.8% 29,226 85.9% School/ECC 11 13.4% 1,155 3.4% Complied Other 63 76.8% 3,626 10.7% Total 82 34,007 Did not comply

Bacteriological Compliance

LA Supplies 8 29226 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 12.5% Worse Population in complying zones 0 474 Worse Population in complying zones 0.0% 1.6% Worse

Reasons for non-compliance Inadequate corrective actions 2 2 Same National Faecal contamination 2 2 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 5 4 Worse Too few days of the week 8 7 Worse Other 0 0 -

School/ECC Supplies 11 1155 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 2 Improved Not monitored 7 7 Same Non-recognised laboratory 0 0 - Not enough monitoring 4 4 Same Too long between samples 4 4 Same Too few days of the week 4 4 Same Other 0 0 -

Other Supplies 63 3601 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 1 Same Complying zones 1.6% 1.6% Same Population in complying zones 1,500 70 Improved Population in complying zones 41.4% 1.9% Improved

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 2 1 Worse Not monitored 57 58 Improved Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 3 4 Improved Too few days of the week 4 3 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 137 Protozoan Compliance Proportion of supplies LA Supplies 11 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 9.1%

School/ECC Supplies 10 10 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 64 64 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 5 83.3% 28,527 95.0% School/ECC 0 0.0% 0 0.0% Other 1 16.7% 1,500 5.0% Total 6 30,027

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 1 Worse Population in complying zones 0 1,500 Worse

General Comment on LA_run Supplies (as derived from appendices) The number of complying supplies fell to zero during 2004. Two zones failed due to inadequate corrective action following E. coli transgression; this deficiency needs to be addressed as a priority. Attention to the minimum sampling criteria is required to achieve bacteriological compliance in the remaining supplies. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for all supplies. Of the six P2 designations, only one was monitored; P2 monitoring needs to commence immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 138 NELSON CITY

Distribution Zones No. Population LA 1 33.3% 43,000 99.5% School/ECC 1 33.3% 90 0.2% Complied Other 1 33.3% 120 0.3% Total 3 43,210 Did not comply

Bacteriological Compliance

LA Supplies 2 40000 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 2 Worse Complying zones 100.0% 100.0% Same Population in complying zones 43,000 40,000 Improved Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 190 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 100.0% Worse Population in complying zones 0 90 Worse Population in complying zones 0.0% 100.0% Worse

Other Supplies 1 120 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 1 0 Worse Too few days of the week 1 0 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 139 Protozoan Compliance Proportion of supplies LA Supplies 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 0 Improved Complying plants 100.0% 0.0%

School/ECC Supplies 11 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 43,000 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 43,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 43,000 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The perfect record of bacteriological compliance was maintained in 2004 following the merger into a single zone. Protozoal compliance was also achieved. The causes of previous P2 transgressions have been resolved by the new treatment plant.

Annual Review of Drinking-water Quality in New Zealand 2004 140 TASMAN DISTRICT

Distribution Zones No. Population LA 17 28.3% 20,135 80.2% School/ECC 16 26.7% 2,697 10.7% Complied Other 27 45.0% 2,269 9.0% Total 60 25,101 Did not comply

Bacteriological Compliance

LA Supplies 16 19685 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 14 11 Improved Complying zones 82.4% 68.8% Improved Population in complying zones 18,060 17,280 Improved Population in complying zones 89.7% 87.8% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 2 1 Worse Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 3 Resolved Too long between samples 0 3 Resolved Too few days of the week 0 2 Resolved Other 0 0 -

School/ECC Supplies 17 3042 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 6 7 Worse Complying zones 37.5% 41.2% Worse Population in complying zones 983 1,119 Worse Population in complying zones 36.4% 36.8% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 5 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 9 6 Worse Too long between samples 9 6 Worse Too few days of the week 9 6 Worse Other 0 0 -

Other Supplies 29 2351 Other water supply zones 2004 2003 Trend Region Number of complying zones 3 5 Worse Complying zones 11.1% 17.2% Worse Population in complying zones 495 799 Worse Population in complying zones 21.8% 34.0% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 8 3 Worse Not monitored 10 15 Improved Non-recognised laboratory 0 0 - Not enough monitoring 13 8 Worse Too long between samples 13 8 Worse Too few days of the week 13 8 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 141 Protozoan Compliance Proportion of supplies LA Supplies 21 21 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 8 8 Same Complying plants 38.1% 38.1%

School/ECC Supplies 16 17 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 29 31 Other water treatment plants 2004 2003 Trend Number of complying plants 0 1 Worse Complying plants 0.0% 3.2%

Chemical Compliance Supplies with chemical assignments No. Population LA 4 80.0% 15,200 95.7% School/ECC 0 0.0% 0 0.0% Other 1 20.0% 680 4.3% Total 5 15,880

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 3 3 Same Population in complying zones 13,700 4,700 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) The improved bacteriological compliance observed in 2003 continued in 2004, with all but three supplies achieving compliance. However, the Kaiteriteri supply was technically non-compliant due to minor deficiencies in zone monitoring; compliance was given on the understanding that the deficiencies will be corrected in 2005. A monitoring programme needs to be established for Torrent Bay Village. The cause of E. coli transgression in the Hope/Brightwater supply was investigated but the cause remained unexplained; more rigorous investigation is warranted in the event of further transgressions. Several of the supplies failed to achieve protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. All zones complied for P2 determinands assigned to them, with the exception of lead in the Mapua Ruby Bay supply, for which one sample was missed.

Annual Review of Drinking-water Quality in New Zealand 2004 142 COMMUNITY AND PUBLIC HEALTH DISTRICT

Distribution Zones No. Population LA 175 46.3% 455,883 91.9% School/ECC 52 13.8% 6,401 1.3% Complied Other 151 39.9% 33,614 6.8% Total 378 495,898 Did not comply

Bacteriological Compliance

LA Supplies 174 441228 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 77 76 Improved Complying zones 44.0% 43.7% Improved Population in complying zones 369,159 381,954 Worse Population in complying zones 81.0% 86.6% Worse

Reasons for non-compliance Inadequate corrective actions 25 19 Worse National Faecal contamination 35 41 Improved Not monitored 19 16 Worse Non-recognised laboratory 0 0 - Not enough monitoring 27 23 Worse Too long between samples 32 25 Worse Too few days of the week 50 60 Improved Other 0 0 -

School/ECC Supplies 57 6595 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 13 15 Worse Complying zones 25.0% 26.3% Worse Population in complying zones 1,978 2,122 Worse Population in complying zones 30.9% 32.2% Worse

Reasons for non-compliance Inadequate corrective actions 2 1 Worse National Faecal contamination 2 2 Same Not monitored 26 28 Improved Non-recognised laboratory 0 0 - Not enough monitoring 12 13 Improved Too long between samples 11 13 Improved Too few days of the week 10 13 Improved Other 0 0 -

Other Supplies 151 33996 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 20 22 Worse Complying zones 13.2% 14.6% Worse Population in complying zones 5,520 13,740 Worse Population in complying zones 16.4% 40.4% Worse

Reasons for non-compliance Inadequate corrective actions 13 13 Same National Faecal contamination 20 19 Worse Not monitored 76 79 Improved Non-recognised laboratory 2 2 Same Not enough monitoring 35 34 Worse Too long between samples 36 34 Worse Too few days of the week 34 33 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 143 Protozoan Compliance Proportion of supplies LA Supplies 180 181 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 21 22 Worse Complying plants 11.7% 12.2%

School/ECC Supplies 52 57 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 154 155 Other water treatment plants 2004 2003 Trend Number of complying plants 7 3 Improved Complying plants 4.5% 1.9%

Chemical Compliance Supplies with chemical assignments No. Population LA 22 75.9% 125,930 91.2% School/ECC 0 0.0% 0 0.0% Other 7 24.1% 12,100 8.8% Total 29 138,030

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 8 2 Improved Population in complying zones 102,784 71,839 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 4 2 Improved Population in complying zones 6,300 1,800 Improved

General Comment (as derived from appendices) Protozoal compliance was not achieved in most of the rural supplies; the optimal means of achieving protozoal compliance should be determined for these supplies. LA-run supplies - ☺ Ashburton District Council is to be commended for the greatly improved compliance of their supplies during 2004. Banks Peninsula, Buller, Hurunui, Mackenzie, Selwyn, Timaru and Waimate District Councils need to be made aware of the public health significance of faecally-contaminated drinking-water, which may begin to improve their response following E. coli transgressions. School/ECC supplies - there was a decline in monitoring activity since 2003, including 24 schools/ECCs that were previously monitored; this matter needs urgent attention by the DHB/ Ministry of Education. Many were not monitored or were inadequately monitored; it would be useful for the DHB to ascertain and report the impediments to full monitoring. Monitoring ceased in seven supplies during 2004 (see Appendix 3); if these are no longer valid they should be deregistered, otherwise monitoring should be re-established immediately. Other supplies - The Ashburton Golf Club and Paparua Men's Prison should be congratulated for achieving compliance with repect to their aggressive designation and P2 assignation, respectively. The three other non-LA supplies in the district undertook no, or inadequate, monitoring of their P2 asignations; further encouragement may be beneficial. Fluoride monitoring needs to be increased to weekly for the Burnham Camp supply.

Annual Review of Drinking-water Quality in New Zealand 2004 144 ASHBURTON DISTRICT

Distribution Zones No. Population LA 15 41.7% 17,900 72.7% School/ECC 7 19.4% 412 1.7% Complied Other 14 38.9% 6,301 25.6% Total 36 24,613 Did not comply

Bacteriological Compliance

LA Supplies 15 17900 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 15 10 Improved Complying zones 100.0% 66.7% Improved Population in complying zones 17,900 15,970 Improved Population in complying zones 100.0% 89.2% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 4 Resolved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 2 Resolved Other 0 0 -

School/ECC Supplies 7 421 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 2 3 Worse Complying zones 28.6% 42.9% Worse Population in complying zones 161 227 Worse Population in complying zones 39.1% 53.9% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 3 2 Worse Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 1 2 Improved Too few days of the week 1 2 Improved Other 0 0 -

Other Supplies 14 6301 Other water supply zones 2004 2003 Trend Region Number of complying zones 8 8 Same Complying zones 57.1% 57.1% Same Population in complying zones 1,675 1,500 Improved Population in complying zones 26.6% 23.8% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 1 1 Same Non-recognised laboratory 1 1 Same Not enough monitoring 2 2 Same Too long between samples 2 2 Same Too few days of the week 3 4 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 145 Protozoan Compliance Proportion of supplies LA Supplies 19 19 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 77 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 14 14 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 60.0% 16,650 80.2% School/ECC 0 0.0% 0 0.0% Other 2 40.0% 4,100 19.8% Total 5 20,750

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 0 Improved Population in complying zones 15,000 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 1 Same Population in complying zones 600 600 Same

General Comment on LA_run Supplies (as derived from appendices) The water supplier is to be commended for improving water treatment and achieving complete bacteriological compliance during 2004. However none of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. No P2 monitoring was not carried out in 2004; P2 monotiring programmes need to be established.

Annual Review of Drinking-water Quality in New Zealand 2004 146 BANKS PENINSULA DISTRICT

Distribution Zones No. Population LA 16 59.3% 6,640 88.9% School/ECC 3 11.1% 137 1.8% Complied Other 8 29.6% 691 9.3% Total 27 7,468 Did not comply

Bacteriological Compliance

LA Supplies 16 6640 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 5 Worse Complying zones 6.3% 31.3% Worse Population in complying zones 320 3,340 Worse Population in complying zones 4.8% 50.3% Worse

Reasons for non-compliance Inadequate corrective actions 7 0 Worse National Faecal contamination 8 5 Worse Not monitored 2 2 Same Non-recognised laboratory 0 0 - Not enough monitoring 5 3 Worse Too long between samples 7 6 Worse Too few days of the week 4 5 Improved Other 0 0 -

School/ECC Supplies 3 137 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 1 Same Complying zones 33.3% 33.3% Same Population in complying zones 12 12 Same Population in complying zones 8.8% 8.8% Same

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 2 2 Same Too few days of the week 1 2 Improved Other 0 0 -

Other Supplies 9 716 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 2 0 Worse National Faecal contamination 3 2 Worse Not monitored 3 4 Improved Non-recognised laboratory 0 0 - Not enough monitoring 4 0 Worse Too long between samples 5 0 Worse Too few days of the week 4 4 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 147 Protozoan Compliance Proportion of supplies LA Supplies 99 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 33 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 89 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 900 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 900

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) There was a large decline in bacteriological compliance in 2004. Excessive E. coli transgressions occurred in eight supplies with immediate corrective actions not being carried out in seven of these. This puts the public at greater risk of waterborne disease. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. Monitoring programmes need to be established for the Governors Bay Low and Top supplies, which were not monitored in 2004. Eight supplies were inadequately monitored; more attention should be paid to the zone monitoring criteria. The Wainui supply was technically non-compliant due to minor deficiencies in zone monitoring; compliance was given on the understanding that the deficiencies will be corrected in 2005. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Compliance was not shown for any of the P2 assignations because of inadequate monitoring; this situation has not improved since 2003. P2 monitoring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 148 BULLER DISTRICT

Distribution Zones No. Population LA 7 28.0% 6,839 85.4% School/ECC 5 20.0% 280 3.5% Complied Other 13 52.0% 888 11.1% Total 25 8,007 Did not comply

Bacteriological Compliance

LA Supplies 7 6839 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 4 Worse Complying zones 14.3% 57.1% Worse Population in complying zones 300 6,469 Worse Population in complying zones 4.4% 94.6% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 2 0 Worse Not monitored 3 3 Same Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 2 0 Worse Too few days of the week 3 0 Worse Other 0 0 -

School/ECC Supplies 5 280 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 20.0% 0.0% Improved Population in complying zones 136 0 Improved Population in complying zones 48.6% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 3 4 Improved Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 1 1 Same Other 0 0 -

Other Supplies 13 918 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 1 Same Complying zones 7.7% 7.7% Same Population in complying zones 140 140 Same Population in complying zones 15.8% 15.3% Improved

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 0 Worse Not monitored 11 12 Improved Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 1 0 Worse Too few days of the week 1 0 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 149 Protozoan Compliance Proportion of supplies LA Supplies 66 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 55 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 12 12 Other water treatment plants 2004 2003 Trend Number of complying plants 1 0 Improved Complying plants 8.3% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 1,044 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 1,044

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) There was a large decline in bacteriological compliance in 2004. Excessive E. coli transgressions occurred in two supplies with immediate corrective actions not being carried out in one of these. This puts the public at greater risk of waterborne disease. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. Monitoring programmes need to be established for the Little Wanganui, Mohikinui and Waimangaroa supplies, which were not monitored in 2004. Three supplies were inadequately monitored; more attention should be paid to the zone monitoring criteria. The Carters Beach supply was technically non-compliant due to minor monitoring deficiencies; compliance was given on the understanding that the deficiencies will be corrected in 2005. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Lead monitoring in the Reefton supply needs to be increased to monthly. The Reefton supply consistently exceeded the antimony MAV during 2004; The reasons for MAV transgressions need to be determined and appropriate corrective actions carried out.

Annual Review of Drinking-water Quality in New Zealand 2004 150 CHRISTCHURCH CITY

Distribution Zones No. Population LA 8 24.2% 307,450 96.1% School/ECC 16 48.5% 4,066 1.3% Complied Other 9 27.3% 8,390 2.6% Total 33 319,906 Did not comply

Bacteriological Compliance

LA Supplies 8 293600 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 6 7 Worse Complying zones 75.0% 87.5% Worse Population in complying zones 276,300 293,450 Worse Population in complying zones 89.9% 99.9% Worse

School/ECC Supplies 18 4161 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 4 5 Worse Complying zones 25.0% 27.8% Worse Population in complying zones 989 1,148 Worse Population in complying zones 24.3% 27.6% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 9 6 Worse Non-recognised laboratory 0 0 - Not enough monitoring 3 7 Improved Too long between samples 3 7 Improved Too few days of the week 3 7 Improved Other 0 0 -

Other Supplies 9 8390 Other water supply zones 2004 2003 Trend Region Number of complying zones 3 5 Worse Complying zones 33.3% 55.6% Worse Population in complying zones 2,800 5,990 Worse Population in complying zones 33.4% 71.4% Worse

Reasons for non-compliance Inadequate corrective actions 3 2 Worse National Faecal contamination 2 2 Same Not monitored 1 0 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 4 2 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 151 Protozoan Compliance Proportion of supplies LA Supplies 10 10 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 9 9 Same Complying plants 90.0% 90.0%

School/ECC Supplies 16 18 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 10 10 Other water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 20.0% 20.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 33.3% 67,500 97.4% School/ECC 0 0.0% 0 0.0% Other 2 66.7% 1,800 2.6% Total 3 69,300

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 1 1 Same Population in complying zones 67,500 70,000 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 1 1 Same Population in complying zones 1,200 1,200 Same

General Comment on LA_run Supplies (as derived from appendices) Bacteriological compliance fell during 2004 due to an exceedence of the maximum interval between successive samples in the West Christchurch supply. Protozoal compliance was not achieved in two supplies; the optimal means of achieving protozoal compliance should be determined for these supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 152 GREY DISTRICT

Distribution Zones No. Population LA 10 41.7% 10,344 90.9% School/ECC 5 20.8% 161 1.4% Complied Other 9 37.5% 870 7.6% Total 24 11,375 Did not comply

Bacteriological Compliance

LA Supplies 10 10344 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 8 8 Same Complying zones 80.0% 80.0% Same Population in complying zones 10,134 10,134 Same Population in complying zones 98.0% 98.0% Same

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 2 2 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 8 251 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 4 8 Improved Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 1 0 Worse Too few days of the week 1 0 Worse Other 0 0 -

Other Supplies 9 870 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 11.1% Worse Population in complying zones 0 170 Worse Population in complying zones 0.0% 19.5% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 8 8 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 153 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 58 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 99 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 100.0% 8,852 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 3 8,852

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 1 Worse Population in complying zones 0 1,839 Worse

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. The bacteriological compliance status has not changed since 2003. Monitoring programmes need to be established for the Ahaura and Shantytown supplies, which were still not monitored in 2004. A P2 monitoring programme for HAAs needs to be established for the Greymouth supply. Aggressiveness needs to be designated for the Cobden, Greymouth and Runanga supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 154 HURUNUI DISTRICT

Distribution Zones No. Population LA 23 65.7% 13,059 96.8% School/ECC 0 0.0% 0 0.0% Complied Other 12 34.3% 430 3.2% Total 35 13,489 Did not comply

Bacteriological Compliance

LA Supplies 23 12859 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 9 4 Improved Complying zones 39.1% 17.4% Improved Population in complying zones 7,050 2,525 Improved Population in complying zones 54.0% 19.6% Improved

Reasons for non-compliance Inadequate corrective actions 8 15 Improved National Faecal contamination 10 14 Improved Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 3 2 Worse Too long between samples 2 4 Improved Too few days of the week 5 12 Improved Other 0 0 -

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 12 335 Other water supply zones 2004 2003 Trend Region Number of complying zones 3 0 Improved Complying zones 25.0% 0.0% Improved Population in complying zones 35 0 Improved Population in complying zones 8.1% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 2 3 Improved National Faecal contamination 2 3 Improved Not monitored 4 6 Improved Non-recognised laboratory 0 0 - Not enough monitoring 2 6 Improved Too long between samples 3 6 Improved Too few days of the week 0 2 Resolved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 155 Protozoan Compliance Proportion of supplies LA Supplies 25 25 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 12 12 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 100.0% 2,050 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 3 2,050

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Overall bacteriological compliance status has improved greatly since 2003. However, Leithfield - Broomfield is still inn need of a monitoring programme and excessive E. coli transgressions occurred in 10 supplies with immediate corrective actions not being carried out in 8 of these. This puts the public at greater risk of waterborne disease. Five supplies failed to comply due to inadequate monitoring. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. No P2 monitoring was not carried out in 2004; P2 monotiring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 156 KAIKOURA DISTRICT

Distribution Zones No. Population LA 7 29.2% 3,272 78.4% School/ECC 0 0.0% 0 0.0% Complied Other 17 70.8% 900 21.6% Total 24 4,172 Did not comply

Bacteriological Compliance

LA Supplies 7 3272 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 3 1 Improved Complying zones 42.9% 14.3% Improved Population in complying zones 1,020 500 Improved Population in complying zones 31.2% 15.3% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 2 Resolved Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 2 1 Worse Too few days of the week 1 4 Improved Other 0 0 -

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 17 900 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 0 Improved Complying zones 5.9% 0.0% Improved Population in complying zones 100 0 Improved Population in complying zones 11.1% 0.0% Improved

Reasons for non-compliance Inadequate corrective actions 0 2 Resolved National Faecal contamination 0 2 Resolved Not monitored 8 8 Same Non-recognised laboratory 0 0 - Not enough monitoring 8 9 Improved Too long between samples 8 9 Improved Too few days of the week 2 3 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 157 Protozoan Compliance Proportion of supplies LA Supplies 77 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 14 14 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 00

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones - Population in complying zones -

General Comment on LA_run Supplies (as derived from appendices) Bacteriological compliance improved significantly during 2004. However, a monitoring programme is still required for Peketa Village and 3 zones were inadequately monitored. Improvements to the monitoring programme are needed if a greater level of compliance is to be achieved. None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for the supplies.

Annual Review of Drinking-water Quality in New Zealand 2004 158 MACKENZIE DISTRICT

Distribution Zones No. Population LA 6 40.0% 2,980 72.8% School/ECC 0 0.0% 0 0.0% Complied Other 9 60.0% 1,115 27.2% Total 15 4,095 Did not comply

Bacteriological Compliance

LA Supplies 6 2980 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 4 Worse Complying zones 16.7% 66.7% Worse Population in complying zones 500 2,100 Worse Population in complying zones 16.8% 70.5% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 3 2 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 2 1 Worse Too few days of the week 5 0 Worse Other 0 0 -

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 8 1065 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 12.5% Worse Population in complying zones 0 10 Worse Population in complying zones 0.0% 0.9% Worse

Reasons for non-compliance Inadequate corrective actions 2 1 Worse National Faecal contamination 3 1 Worse Not monitored 6 5 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 2 2 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 159 Protozoan Compliance Proportion of supplies LA Supplies 55 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 98 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 100.0% 2,150 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 2 2,150

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Overall bacteriological compliance status has declined greatly since 2003. Excessive E. coli transgressions occurred in three supplies with immediate corrective actions not being carried out in one of these. This puts the public at greater risk of waterborne disease. Inadequate monitoring occurred in all non-complying supplies. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. No P2 monitoring was not carried out in the Twizel and Fairlie supplies; P2 monotiring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 160 SELWYN DISTRICT

Distribution Zones No. Population LA 29 52.7% 10,648 59.9% School/ECC 4 7.3% 330 1.9% Complied Other 22 40.0% 6,805 38.3% Total 55 17,783 Did not comply

Bacteriological Compliance

LA Supplies 28 10038 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 12 5 Improved Complying zones 41.4% 17.9% Improved Population in complying zones 2,138 5,295 Worse Population in complying zones 20.1% 52.7% Worse

Reasons for non-compliance Inadequate corrective actions 3 2 Worse National Faecal contamination 3 3 Same Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 13 10 Worse Too long between samples 13 7 Worse Too few days of the week 12 22 Improved Other 0 0 -

School/ECC Supplies 4 330 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 1 2 Worse Complying zones 25.0% 50.0% Worse Population in complying zones 80 135 Worse Population in complying zones 24.2% 40.9% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 2 0 Worse Too long between samples 2 0 Worse Too few days of the week 2 0 Worse Other 0 0 -

Other Supplies 22 6750 Other water supply zones 2004 2003 Trend Region Number of complying zones 2 1 Improved Complying zones 9.1% 4.5% Improved Population in complying zones 480 400 Improved Population in complying zones 7.1% 5.9% Improved

Reasons for non-compliance Inadequate corrective actions 3 5 Improved National Faecal contamination 3 7 Improved Not monitored 11 11 Same Non-recognised laboratory 0 0 - Not enough monitoring 8 8 Same Too long between samples 7 8 Improved Too few days of the week 9 9 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 161 Protozoan Compliance Proportion of supplies LA Supplies 37 37 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 11 12 Worse Complying plants 29.7% 32.4%

School/ECC Supplies 44 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 23 24 Other water treatment plants 2004 2003 Trend Number of complying plants 4 1 Improved Complying plants 17.4% 4.2%

Chemical Compliance Supplies with chemical assignments No. Population LA 0 0.0% 0 0.0% School/ECC 0 0.0% 0 0.0% Other 1 100.0% 1,700 100.0% Total 1 1,700

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Overall bacteriological compliance status has improved slightly since 2003. Excessive E. coli transgressions occurred in three supplies with immediate corrective actions being carried out in none of these. This puts the public at greater risk of waterborne disease. A monitoring programme needs to be established for the Upper Selwyn Huts supply. Inadequate monitoring occurred in 15 supplies. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions.

Annual Review of Drinking-water Quality in New Zealand 2004 162 TIMARU DISTRICT

Distribution Zones No. Population LA 12 38.7% 37,537 85.7% School/ECC 3 9.7% 186 0.4% Complied Other 16 51.6% 6,065 13.9% Total 31 43,788 Did not comply

Bacteriological Compliance

LA Supplies 12 37537 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 8 8 Same Complying zones 66.7% 66.7% Same Population in complying zones 35,527 36,347 Worse Population in complying zones 94.6% 96.8% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 3 4 Improved Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 1 0 Worse Too few days of the week 0 0 - Other 0 0 -

School/ECC Supplies 3 186 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 0 1 Resolved Not monitored 3 2 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

Other Supplies 17 6617 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 4 Worse Complying zones 6.3% 23.5% Worse Population in complying zones 250 5,490 Worse Population in complying zones 4.1% 83.0% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 3 2 Worse Not monitored 4 5 Improved Non-recognised laboratory 1 1 Same Not enough monitoring 6 6 Same Too long between samples 6 6 Same Too few days of the week 7 6 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 163 Protozoan Compliance Proportion of supplies LA Supplies 910 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 11.1% 10.0%

School/ECC Supplies 33 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 19 20 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 2 50.0% 4,984 52.6% School/ECC 0 0.0% 0 0.0% Other 2 50.0% 4,500 47.4% Total 4 9,484

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 2 0 Improved Population in complying zones 4,984 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 2 0 Improved Population in complying zones 4,500 0 Improved

General Comment on LA_run Supplies (as derived from appendices) Only the Timaru supply achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for the other supplies. Overall bacteriological compliance status has declined slightly since 2003. Excessive E. coli transgressions occurred in three supplies with immediate corrective actions not being carried out in one of these. This puts the public at greater risk of waterborne disease. The Te Moana supply failed to meet the maximum interval between successive samples criterion, which is easily remedied. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions.

Annual Review of Drinking-water Quality in New Zealand 2004 164 WAIMAKARIRI DISTRICT

Distribution Zones No. Population LA 18 56.3% 27,065 95.7% School/ECC 4 12.5% 600 2.1% Complied Other 10 31.3% 610 2.2% Total 32 28,275 Did not comply

Bacteriological Compliance

LA Supplies 18 27065 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 13 13 Same Complying zones 72.2% 72.2% Same Population in complying zones 17,970 4,215 Improved Population in complying zones 66.4% 15.6% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 4 Improved Too long between samples 2 3 Improved Too few days of the week 3 4 Improved Other 0 0 -

School/ECC Supplies 4 600 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 4 4 Same Complying zones 100.0% 100.0% Same Population in complying zones 600 600 Same Population in complying zones 100.0% 100.0% Same

Other Supplies 9 585 Other water supply zones 2004 2003 Trend Region Number of complying zones 1 1 Same Complying zones 10.0% 11.1% Worse Population in complying zones 40 40 Same Population in complying zones 6.6% 6.8% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 1 0 Worse Not monitored 7 7 Same Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 2 1 Worse Too few days of the week 2 1 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 165 Protozoan Compliance Proportion of supplies LA Supplies 23 23 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 44 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 98 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 4 100.0% 15,300 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 4 15,300

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 4 0 Improved Population in complying zones 15,300 0 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Overall bacteriological compliance status has improved slightly since 2003. Excessive E. coli transgressions occurred in the Oxford Rural No 1 supply; it is recommended that the adequacy and operation of the treatment plant be reviewed and improved as a matter of priority. A monitoring programme needs to be established for the Mandeville Sports Club supply. Inadequate monitoring occurred in three supplies; their monitoring programmes need to be revised. The Pines/Kairaki and Woodend Town supplies were technically non-compliant due to minor deficiencies in zone monitoring; compliance was given to these supplies on the understanding that the deficiencies will be corrected in 2005.

Annual Review of Drinking-water Quality in New Zealand 2004 166 WAIMATE DISTRICT

Distribution Zones No. Population LA 12 85.7% 6,250 98.7% School/ECC 0 0.0% 0 0.0% Complied Other 2 14.3% 80 1.3% Total 14 6,330 Did not comply

Bacteriological Compliance

LA Supplies 12 6255 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 3 1 Worse National Faecal contamination 4 6 Improved Not monitored 5 3 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 1 Resolved Too long between samples 0 1 Resolved Too few days of the week 7 9 Improved Other 0 0 -

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 280 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Annual Review of Drinking-water Quality in New Zealand 2004 167 Protozoan Compliance Proportion of supplies LA Supplies 12 12 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 22 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 3,000 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 3,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for all supplies. Overall bacteriological compliance status has fallen since 2003; none of the supplies now comply. Excessive E. coli transgressions occurred in four supplies with immediate corrective actions being carried out in only one of these. This puts the public at greater risk of waterborne disease. Monitoring programmes need to be established for the four presently-unmonitored supplies. Seven supplies failed to meet the minimum days-of-the-week criterion, which needs to be addressed if compliance is to be achieved in these supplies. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. No P2 monitoring was not carried out in 2004; P2 monotiring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 168 WESTLAND DISTRICT

Distribution Zones No. Population LA 12 44.4% 5,899 89.4% School/ECC 5 18.5% 229 3.5% Complied Other 10 37.0% 469 7.1% Total 27 6,597 Did not comply

Bacteriological Compliance

LA Supplies 12 5899 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 7 Worse Complying zones 0.0% 58.3% Worse Population in complying zones 0 1,609 Worse Population in complying zones 0.0% 27.3% Worse

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 3 2 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 2 Resolved Too long between samples 0 1 Resolved Too few days of the week 9 1 Worse Other 0 0 -

School/ECC Supplies 5 229 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 0 Worse Not monitored 4 5 Improved Non-recognised laboratory 0 0 - Not enough monitoring 1 0 Worse Too long between samples 1 0 Worse Too few days of the week 1 0 Worse Other 0 0 -

Other Supplies 10 469 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 10 10 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 169 Protozoan Compliance Proportion of supplies LA Supplies 11 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 55 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 13 13 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 3,500 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 3,500

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for all supplies. Overall bacteriological compliance status has fallen since 2003; none of the supplies now comply. Excessive E. coli transgressions occurred in the Harihari supply and which was not followed by immediate corrective action . This puts the public at greater risk of waterborne disease. Monitoring programmes need to be established for the Kaniere, Okarito and Otira supplies. The minimum days-of-the-week criterion is not being met for any supply; this needs to be addressed if compliance is to be achieved in these supplies. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. No P2 monitoring was not carried out in 2004; P2 monotiring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 170 PUBLIC HEALTH SOUTH HEALTH DISTRICT

Distribution Zones No. Population LA 116 48.1% 236,170 94.9% School/ECC 45 18.7% 3,180 1.3% Complied Other 80 33.2% 9,536 3.8% Total 241 248,886 Did not comply

Bacteriological Compliance

LA Supplies 116 244836 Proportion of supplies LA water supply zones 2004 2003 Trend Health Dist. Number of complying zones 37 43 Worse Complying zones 31.9% 37.1% Worse Population in complying zones 168,227 118,254 Improved Population in complying zones 71.2% 48.3% Improved

Reasons for non-compliance Inadequate corrective actions 22 18 Worse National Faecal contamination 27 25 Worse Not monitored 10 9 Worse Non-recognised laboratory 0 0 - Not enough monitoring 8 15 Improved Too long between samples 8 18 Improved Too few days of the week 51 45 Worse Other 0 0 -

School/ECC Supplies 51 3278 School/ECC water supply zones 2004 2003 Trend Health Dist. Number of complying zones 21 29 Worse Complying zones 46.7% 56.9% Worse Population in complying zones 1,758 2,300 Worse Population in complying zones 55.3% 70.2% Worse

Reasons for non-compliance Inadequate corrective actions 2 2 Same National Faecal contamination 11 8 Worse Not monitored 4 7 Improved Non-recognised laboratory 0 0 - Not enough monitoring 8 7 Worse Too long between samples 9 9 Same Too few days of the week 12 8 Worse Other 0 0 -

Other Supplies 75 9233 Other water supply zones 2004 2003 Trend Health Dist. Number of complying zones 10 9 Improved Complying zones 12.5% 12.0% Improved Population in complying zones 835 1,395 Worse Population in complying zones 8.8% 15.1% Worse

Reasons for non-compliance Inadequate corrective actions 7 8 Improved National Faecal contamination 9 10 Improved Not monitored 52 46 Worse Non-recognised laboratory 4 5 Improved Not enough monitoring 4 10 Improved Too long between samples 6 11 Improved Too few days of the week 7 9 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 171 Protozoan Compliance Proportion of supplies LA Supplies 99 99 Hlth.Dist. National LA water treatment plants 2004 2003 Trend Number of complying plants 6 6 Same Complying plants 6.1% 6.1%

School/ECC Supplies 45 51 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 2 3 Worse Percentage of plants comply 4.4% 5.9%

Other Supplies 79 74 Other water treatment plants 2004 2003 Trend Number of complying plants 3 3 Same Complying plants 3.8% 4.1%

Chemical Compliance Supplies with chemical assignments No. Population LA 28 90.3% 173,079 97.6% School/ECC 0 0.0% 0 0.0% Other 3 9.7% 4,200 2.4% Total 31 177,279

LA Supplies Hlth.Dist. National LA water supplies 2004 2003 Trend Number of complying zones 3 3 Same Population in complying zones 50,546 50,525 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment (as derived from appendices) Protozoal compliance was not achieved in most of the rural supplies; the optimal means of achieving protozoal compliance should be determined for these supplies. LA-run supplies - ☺ Dunedin City and Queenstown Lakes District Councils are commended for the greatly improved bacteriological compliance achieved in their supplies during 2004. Clutha and Waitaki District councils need to begin to improve their procedures and carry out immediate corrective actions when E. coli transgressions occur. School/ECC supplies - the four registered school supplies in Central Otago were not monitored in 2004; monitoring programmes need to be established. Monitoring ceased in the Paerau and Tarras school supplies during 2004; if they are no longer valid they should be deregistered - otherwise monitoring should be re-established immediately. Bacteriological failures occurred in 11 schools; the DHB should determine whether additional treatment or improved procedures are required and, where appropriate, to advise the Ministry of Education. DHB surveillance revealed E. coli in the Limehills and Isla Bank School supplies whereas monitoring did not; this may be indicative of poor sampling procedures, which should be reviewed. Other supplies - a large proportion were not monitored; some encouragement may be warranted. The Alliance Group and NZMP are using non-recognised laboratories and it may be beneficial to encourage the laboratories they use to seek IANZ registration. DHB surveillance revealed E. coli in the Waitaki Mouth Motor Camp supply whereas monitoring did not; this may be indicative of poor sampling procedures, which should be reviewed.

Annual Review of Drinking-water Quality in New Zealand 2004 172 CENTRAL OTAGO DISTRICT

Distribution Zones No. Population LA 12 37.5% 12,030 95.1% School/ECC 4 12.5% 124 1.0% Complied Other 16 50.0% 500 4.0% Total 32 12,654 Did not comply

Bacteriological Compliance

LA Supplies 12 12030 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 1 9 Worse Complying zones 8.3% 75.0% Worse Population in complying zones 400 11,910 Worse Population in complying zones 3.3% 99.0% Worse

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 0 1 Resolved Not monitored 3 2 Worse Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 0 1 Resolved Too few days of the week 8 1 Worse Other 0 0 -

School/ECC Supplies 4 124 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 2 Worse Complying zones 0.0% 50.0% Worse Population in complying zones 0 37 Worse Population in complying zones 0.0% 29.8% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 4 2 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Other Supplies 15 464 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 6.7% Worse Population in complying zones 0 90 Worse Population in complying zones 0.0% 19.4% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 15 12 Worse Non-recognised laboratory 0 0 - Not enough monitoring 0 2 Resolved Too long between samples 0 2 Resolved Too few days of the week 1 2 Improved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 173 Protozoan Compliance Proportion of supplies LA Supplies 99 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 44 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 16 15 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 1,000 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 1,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for these supplies. Overall bacteriological compliance status has declined much since 2003. Monitoring programmes need to be established for the Ripponvale, Ophir and Ettrick Rural supplies. Inadequate monitoring occurred in eight supplies; their monitoring programmes need to be revised - particular attention should be give to the days-of-the-week sampling criterion. The chlorate P2 for the Ranfurly supply was still not monitored in 2004; a P2 monitoring programme needs to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 174 CLUTHA DISTRICT

Distribution Zones No. Population LA 26 46.4% 13,990 85.8% School/ECC 2 3.6% 65 0.4% Complied Other 28 50.0% 2,243 13.8% Total 56 16,298 Did not comply

Bacteriological Compliance

LA Supplies 26 13990 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 10 8 Worse National Faecal contamination 10 8 Worse Not monitored 4 4 Same Non-recognised laboratory 0 0 - Not enough monitoring 4 0 Worse Too long between samples 4 6 Improved Too few days of the week 22 22 Same Other 0 0 -

School/ECC Supplies 265 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 2 2 Same Too few days of the week 2 1 Worse Other 0 0 -

Other Supplies 28 2243 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 2 Improved Not monitored 24 24 Same Non-recognised laboratory 2 2 Same Not enough monitoring 2 3 Improved Too long between samples 2 2 Same Too few days of the week 2 1 Worse Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 175 Protozoan Compliance Proportion of supplies LA Supplies 20 20 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 22 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 28 28 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 6 85.7% 8,818 88.9% School/ECC 0 0.0% 0 0.0% Other 1 14.3% 1,100 11.1% Total 7 9,918

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for all supplies. Clutha District Council failed again to achieve bacteriological compliance in any of its supplies in 2004. Monitoring programmes need to be established for the four unmonitored supplies. Inadequate monitoring occurred in eight supplies; their monitoring programmes need revision - particular attention should be give to the days-of-the-week sampling criterion. Excessive E. coli transgressions occurred in 10 supplies with immediate corrective actions not being carried out in none. This means that the public is exposed to faecally contaminated drinking-water for protracted periods which puts them at greater risk from waterborne disease. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. None of the supplies complied with the P2 requirements. The fluoride MAV for Balclutha was exceeded on five occasions during 2004; this warrants immediate corrective action, which was carried out. The fluoride analysis should also be tested in a MoH-recognised laboratory. The remaining 13 P2 assignations were not monitored; P2 monotiring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 176 DUNEDIN CITY

Distribution Zones No. Population LA 14 53.8% 103,669 98.6% School/ECC 3 11.5% 175 0.2% Complied Other 9 34.6% 1,300 1.2% Total 26 105,144 Did not comply

Bacteriological Compliance

LA Supplies 14 103970 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 9 6 Improved Complying zones 64.3% 42.9% Improved Population in complying zones 83,824 20,203 Improved Population in complying zones 80.9% 19.4% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 1 Resolved Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 7 Resolved Too long between samples 4 6 Improved Too few days of the week 0 3 Resolved Other 0 0 -

School/ECC Supplies 4 200 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 1 1 Same Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 2 2 Same Too long between samples 3 4 Improved Too few days of the week 3 4 Improved Other 0 0 -

Other Supplies 8 1250 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 6 5 Worse Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 3 3 Same Too few days of the week 3 3 Same Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 177 Protozoan Compliance Proportion of supplies LA Supplies 13 13 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 3 3 Same Complying plants 23.1% 23.1%

School/ECC Supplies 34 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 98 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 8 100.0% 91,336 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 8 91,336

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Protozoal compliance was not attained in most of the supplies; the optimal means of achieving protozoal compliance should be determined for the remaining supplies. Bacteriological compliance has improved markedly since 2003. However, a monitoring programme needs to be established for the Blueskin Road supply, which not monitored during 2004. A further four supplies failed to meet the maximum interval between successive samples criterion, which needs to be remedied if bacteriological compliance is to be achieved. No supplies achieved P2 compliance during 2004. While a number of P2 assignations did comply, four supplies were not monitored for fluoride; P2 monitoring programmes need to be established for these supplies immediately. Furthermone, the MAVs pertaining to disinfection byproducts were exceeded in five supplies, with no corrective actions; the reasons for MAV transgressions need to be determined and appropriate corrective actions carried out.

Annual Review of Drinking-water Quality in New Zealand 2004 178 GORE DISTRICT

Distribution Zones No. Population LA 6 100.0% 10,875 100.0% School/ECC 0 0.0% 0 0.0% Complied Other 0 0.0% 0 0.0% Total 6 10,875 Did not comply

Bacteriological Compliance

LA Supplies 6 19240 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 3 6 Worse Complying zones 50.0% 100.0% Worse Population in complying zones 10,365 19,240 Worse Population in complying zones 95.3% 100.0% Worse

School/ECC Supplies 00 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Other Supplies 00 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones - Population in complying zones 0 0 - Population in complying zones -

Annual Review of Drinking-water Quality in New Zealand 2004 179 Protozoan Compliance Proportion of supplies LA Supplies 66 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 16.7% 16.7%

School/ECC Supplies 00 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply

Other Supplies 00 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 1,665 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 1,665

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Protozoal compliance was achieved only in the Mataura supply; the optimal means of achieving protozoal compliance should be determined for the remaining supplies. Bacteriological compliance has declined markedly since 2003. Three supplies failed to meet the minimum days-of-the-week sampling criterion; improvements to the monitoring programme are needed if a greater level of compliance is to be achieved. Monthly lead monitoring is required for the East Gore supply; the P2 monitoring programme should be amended accordingly.

Annual Review of Drinking-water Quality in New Zealand 2004 180 INVERCARGILL CITY

Distribution Zones No. Population LA 2 33.3% 50,456 97.3% School/ECC 3 50.0% 515 1.0% Complied Other 1 16.7% 900 1.7% Total 6 51,871 Did not comply

Bacteriological Compliance

LA Supplies 2 50456 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 2 2 Same Complying zones 100.0% 100.0% Same Population in complying zones 50,456 50,456 Same Population in complying zones 100.0% 100.0% Same

School/ECC Supplies 4 507 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 2 Worse Complying zones 0.0% 50.0% Worse Population in complying zones 0 318 Worse Population in complying zones 0.0% 62.7% Worse

Reasons for non-compliance Inadequate corrective actions 1 0 Worse National Faecal contamination 1 1 Same Not monitored 0 1 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 3 0 Worse Other 0 0 -

Other Supplies 1 900 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 1 Worse Complying zones 0.0% 100.0% Worse Population in complying zones 0 900 Worse Population in complying zones 0.0% 100.0% Worse

Annual Review of Drinking-water Quality in New Zealand 2004 181 Protozoan Compliance Proportion of supplies LA Supplies 11 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 34 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 1 2 Worse Percentage of plants comply 33.3% 50.0%

Other Supplies 11 Other water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 100.0% 100.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 75.0% 50,546 98.3% School/ECC 0 0.0% 0 0.0% Other 1 25.0% 900 1.7% Total 4 51,446

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 3 3 Same Population in complying zones 50,546 50,525 Improved

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Protozoal compliance was not attained in any of the supplies; the optimal means of achieving protozoal compliance should be determined for all supplies. Bacteriological compliance has improved marginally since 2003. The non-complying Tisbury School supply failed due to inadequate monitoring in 2004. However, this situation has been resolved by connection of the school to the Invercargill City supply.

Annual Review of Drinking-water Quality in New Zealand 2004 182 QUEENSTOWN LAKES DISTRICT

Distribution Zones No. Population LA 11 52.4% 16,725 91.9% School/ECC 2 9.5% 66 0.4% Complied Other 8 38.1% 1,417 7.8% Total 21 18,208 Did not comply

Bacteriological Compliance

LA Supplies 11 16725 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 9 6 Improved Complying zones 81.8% 54.5% Improved Population in complying zones 8,225 5,150 Improved Population in complying zones 49.2% 30.8% Improved

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 1 4 Improved Too long between samples 0 1 Resolved Too few days of the week 0 1 Resolved Other 0 0 -

School/ECC Supplies 266 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Other Supplies 5 1200 Other water supply zones 2004 2003 Trend Region Number of complying zones 3 1 Improved Complying zones 37.5% 20.0% Improved Population in complying zones 475 150 Improved Population in complying zones 33.5% 12.5% Improved

Reasons for non-compliance Inadequate corrective actions 1 1 Same National Faecal contamination 1 1 Same Not monitored 4 1 Worse Non-recognised laboratory 0 1 Resolved Not enough monitoring 0 3 Resolved Too long between samples 0 3 Resolved Too few days of the week 0 2 Resolved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 183 Protozoan Compliance Proportion of supplies LA Supplies 10 10 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 10.0% 10.0%

School/ECC Supplies 22 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 85 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 1 100.0% 8,000 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 1 8,000

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) Protozoal compliance was attained only for the Arthurs Point supply; the optimal means of achieving protozoal compliance should be determined for the remaining supplies. Bacteriological compliance has improved since 2003. However, a monitoring programme needs to be established for the Glendhu Bay Motor Camp supply, which not monitored during 2004. The Queenstown supply did not comply due to not enough monitoring samples being taken; this will need to be remedied if bacteriological compliance is to be achieved, specifically the need for increased sampling when the population temporally rises above 10,000 (ie . in the peak tourist season).

Annual Review of Drinking-water Quality in New Zealand 2004 184 SOUTHLAND DISTRICT

Distribution Zones No. Population LA 17 34.0% 9,216 67.3% School/ECC 29 58.0% 2,155 15.7% Complied Other 4 8.0% 2,321 17.0% Total 50 13,692 Did not comply

Bacteriological Compliance

LA Supplies 17 9216 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 1 Resolved National Faecal contamination 2 2 Same Not monitored 1 1 Same Non-recognised laboratory 0 0 - Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 16 16 Same Other 0 0 -

School/ECC Supplies 33 2236 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 19 23 Worse Complying zones 65.5% 69.7% Worse Population in complying zones 1,678 1,865 Worse Population in complying zones 77.9% 83.4% Worse

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 8 5 Worse Not monitored 0 4 Resolved Non-recognised laboratory 0 0 - Not enough monitoring 2 1 Worse Too long between samples 2 1 Worse Too few days of the week 2 1 Worse Other 0 0 -

Other Supplies 4 2321 Other water supply zones 2004 2003 Trend Region Number of complying zones 0 0 - Complying zones 0.0% 0.0% - Population in complying zones 0 0 - Population in complying zones 0.0% 0.0% -

Reasons for non-compliance Inadequate corrective actions 0 0 - National Faecal contamination 0 0 - Not monitored 2 2 Same Non-recognised laboratory 2 2 Same Not enough monitoring 0 0 - Too long between samples 0 0 - Too few days of the week 0 0 - Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 185 Protozoan Compliance Proportion of supplies LA Supplies 15 15 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Complying plants 6.7% 6.7%

School/ECC Supplies 29 33 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 1 1 Same Percentage of plants comply 3.4% 3.0%

Other Supplies 33 Other water treatment plants 2004 2003 Trend Number of complying plants 2 2 Same Complying plants 66.7% 66.7%

Chemical Compliance Supplies with chemical assignments No. Population LA 5 83.3% 5,817 72.6% School/ECC 0 0.0% 0 0.0% Other 1 16.7% 2,200 27.4% Total 6 8,017

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) No supplies achieved protozoal compliance during 2004; the optimal means of achieving protozoal compliance should be determined for the other supplies. Bacteriological compliance has not changed since 2003. The cause of the E. coli transgressions in the Eastern Bush and Orawia supplies need to be determined and remedied. It is recommended that the adequacy and operation of the water treatment plants be reviewed and improved as a matter of priority. Non-compliance in the remaining 14 supplies was caused by failure to observe the minimum days-of-the-week criterion; this will need to be addressed before these supplies can achieve compliance. No P2 monitoring was not carried out in 2004; P2 monotiring programmes need to be established immediately.

Annual Review of Drinking-water Quality in New Zealand 2004 186 WAITAKI DISTRICT

Distribution Zones No. Population LA 28 63.6% 19,209 95.4% School/ECC 2 4.5% 80 0.4% Complied Other 14 31.8% 855 4.2% Total 44 20,144 Did not comply

Bacteriological Compliance

LA Supplies 28 19209 Proportion of supplies LA water supply zones 2004 2003 Trend Region Number of complying zones 13 14 Worse Complying zones 46.4% 50.0% Worse Population in complying zones 14,957 11,295 Improved Population in complying zones 77.9% 58.8% Improved

Reasons for non-compliance Inadequate corrective actions 12 8 Worse National Faecal contamination 15 13 Worse Not monitored 0 0 - Non-recognised laboratory 0 0 - Not enough monitoring 1 3 Improved Too long between samples 0 4 Resolved Too few days of the week 2 2 Same Other 0 0 -

School/ECC Supplies 280 School/ECC water supply zones 2004 2003 Trend Region Number of complying zones 2 2 Same Complying zones 100.0% 100.0% Same Population in complying zones 80 80 Same Population in complying zones 100.0% 100.0% Same

Other Supplies 14 855 Other water supply zones 2004 2003 Trend Region Number of complying zones 7 6 Improved Complying zones 50.0% 42.9% Improved Population in complying zones 360 255 Improved Population in complying zones 42.1% 29.8% Improved

Reasons for non-compliance Inadequate corrective actions 4 6 Improved National Faecal contamination 6 6 Same Not monitored 1 2 Improved Non-recognised laboratory 0 0 - Not enough monitoring 1 1 Same Too long between samples 1 1 Same Too few days of the week 0 1 Resolved Other 0 0 -

Annual Review of Drinking-water Quality in New Zealand 2004 187 Protozoan Compliance Proportion of supplies LA Supplies 25 25 Region National LA water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

School/ECC Supplies 22 School/ECC water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Percentage of plants comply 0.0% 0.0%

Other Supplies 14 14 Other water treatment plants 2004 2003 Trend Number of complying plants 0 0 - Complying plants 0.0% 0.0%

Chemical Compliance Supplies with chemical assignments No. Population LA 3 100.0% 5,897 100.0% School/ECC 0 0.0% 0 0.0% Other 0 0.0% 0 0.0% Total 3 5,897

LA Supplies Region National LA water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

Other Supplies Other water supplies 2004 2003 Trend Number of complying zones 0 0 - Population in complying zones 0 0 -

General Comment on LA_run Supplies (as derived from appendices) None of the supplies achieved protozoal compliance; the optimal means of achieving protozoal compliance should be determined for all supplies. Bacteriological compliance declined slightly during 2004. Excessive E. coli transgressions occurred in 15 supplies with immediate corrective actions not being carried out in 11. This means that the public is exposed to faecally contaminated drinking-water for protracted periods which puts them at greater risk from waterborne disease. Priority should be given to investigating and resolving the causes of the E. coli transgressions and following up transgressions with immediate and appropriate corrective actions. Inadequate monitoring occurred in three supplies; their monitoring programmes need to be revised if compliance is the be achieved. The Dunback Rural supply was technically non-compliant due to minor deficiencies in zone monitoring; compliance was given to these supplies on the understanding that the deficiencies will be corrected in 2005.

Annual Review of Drinking-water Quality in New Zealand 2004 188 APPENDIX 1

Key to Symbols and Abbreviations

Compliance codes A Inadequate corrective action following transgression E E. coli non-compliance C Chemical transgression N Not monitored for E. coli /P2 L Non-recognised laboratory used for analyses I Inadequate sampling (f) Inadequate number of samples (d) Sampled on too few days of the week (i) Sampling exceeded the maximum number of days between samples P No effective protozoal treatment in one or more treatment plants a Ineffective corrective action

Change codes (refers to bacteriological compliance) ☺ Performance better than last year Performance the same as last year Performance worse than last year Complied in full again Newly-registered supply/P2 requirement Zone deregistered

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Far North District (page 2 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies KAI006KA Kaikohe 4,000 Local Authority Complied P KAI006NG Ngawha Springs 200 Local Authority Complied P KAI008KA Kaitaia 5,000 Local Authority Complied P KAW002KA Kawakawa 1,500 Local Authority Complied P KAW002MO Moerewa / Otiria 2,000 Local Authority Complied P KER001KE Kerikeri 2,500 Local Authority Complied P OKA003OK Okaihau 500 Local Authority Complied P OMA002OM Omapere 500 Local Authority Complied P OMA003MA Omanaia Marae 80 Local Authority I(fdi) P OMA003OM Omanaia 60 Local Authority N P PAI001HA Haruru Falls 1,000 Local Authority Complied P PAI001OP Opua 1,000 Local Authority Complied P PAI001PA Paihia 2,000 Local Authority Complied P RAW001RA Rawene 500 Local Authority Complied P TEK006TE Te Kao 300 Local Authority N P School Supplies AHI001SC Ahipara School 215 School BoT Complied P AWA008SC Awanui School 99 School BoT AEI(fdi) P AWA009SC Awarua School 50 School BoT I(fdi) P ☺ BRO007SC Broadwood Area School 140 School BoT E P HER002SC Herekino School 50 School BoT I(fdi) P HOR003SC Horeke School 35 School BoT AEI(fdi) P KAI027SC Kaingaroa School 200 School BoT AEI(d) P KAR007SC Karetu School 55 School BoT Complied P KOH002SC Kohukohu School 60 School BoT AEI(d) P KUR005KU Kura o Hato Hohepa Te Kamura 34 School BoT Complied P MAN005SC Mangonui School 160 School BoT Complied P ☺ MAN024SC Mangamuka School 45 School BoT Complied P ☺ MAR012SC Maromaku School 50 School BoT I(fdi) P MAT023SC Matihetihe School 40 School BoT AEI(fdi) P MAT024SC Matawaia School 25 School BoT N (zone now closed) P MAT032SC Matauri Bay Primary School 60 School BoT I(fdi) P ☺ MOT011SC Motatau School 60 School BoT AEI(fdi) P ☺ NGA012SC Ngataki School 40 School BoT AEI(fdi) P ☺ NGA013SC Ngaiotonga School 25 School BoT N P OHA010OH Ohaeawai School 125 School BoT I(fdi) P OMA003SC Omanaia School 40 School BoT EI(fdi) P ORA004SC Orauta School 30 School BoT N (zone now closed) P ORO005SC Oromahoe School 80 School BoT Complied P ORU001SC Oruaiti School 120 School BoT Complied P ☺ OTU004SC Oturu School 95 School BoT Complied P ☺ PAK005PS Pakaraka School 70 School BoT Complied P ☺ PAM001SC Pamapuria School 180 School BoT Complied P ☺ PAP006SC Paparore School 60 School BoT I(fdi) P ☺ PER001SC Peria School 120 School BoT N P PUK015SC Pukepoto School 130 School BoT Complied P PUK016SC Pukenui School 50 School BoT I(fdi) P ☺ RUS005SC Russell School 130 School BoT I(fdi) P TAI008SC Taipa Area School 520 School BoT N (now on MAN005MA) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Far North District (page 3 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change TAU008TA Tautoro School 60 School BoT I(fi) P ☺ TEH007SC Te Hapua School 40 School BoT I(fdi) P ☺ TEK010SC Te Kura O Hata Maria 40 School BoT I(fdi) P TEK011SC Te Kura Taumata O Panguru 145 School BoT EI(fdi) P TEK012SC Te Kura O Te Rangi Aniwaniwa 69 School BoT E P ☺ TEK013SC Te Kura O Rangiawhia 60 School BoT N P TEK023TE Te Kohanga Reo O Houhora 25 Kohanga Reo Committee N P TEK024TE Te Kao Primary School 60 I(fdi) P ☺ TEN003TE Te Ngahouhuia Kohunga Reo 25 Kohanga Reo Committee N P TEP011SC Te Paraki Kohunga Reo 30 Kohanga Reo Committee N (zone closed Jan 04) P TET002SC Te Tii School 38 School BoT N P TOT003SC Totara North School 50 School BoT I(fdi) P TOW001SC Towai School 40 School BoT N (zone now closed) P UMA001SC Umawera School 30 School BoT E P WAI063SC Waima School 80 School BoT I(fdi) P ☺ WAI093SC Waikare School 50 School BoT I(fdi) P ☺ WAI094SC Waiharara School 40 School BoT I(fdi) P ☺ WHA026KP Kaeo Primary School 100 School BoT Complied P ☺ WHA026SC Whangaroa College 200 School BoT Complied P

Other Supplies ARO004AR Aroha Island 60 QE2 National Trust N P BAY002BA Bay of Islands Country Lodge 30 Bay of Is. Country Lodge N P BAY003BA Bay of Islands Holiday Park 90 Bay of Islands Hol. Park N P COO001CO Coopers Beach Motel 30 Motel N P HAR004HA Haruru Falls Resort 50 Haruru Falls Resort N P HID001HI Hideaway Lodge Motor Camp 150 Motor Camp N P HIH001HI Hihi Motor Camp 40 Motor Camp N P KAE001KA Kaeo 72 Kaeo Water Limited N P KAE002KA Kaeo Hospital 40 Kaeo Hospital Complied P KAR002KB Karikari Bay Motor Camp 30 Karikari Bay Motor Camp N P KAR014KA Karangahape Marae 80 Marae Committee N P KIN006KI Kingfish Lodge, Whangaroa 30 N P KOK005KO Kokohuia Marae 80 Marae Committee N P KOR002MA Korou Kore Marae 90 Marae Committee N P MAH010MA Mahuhukiterangi Marae 90 Marae Committee N P MAH011MA Mahuri Marae 90 Marae Committee N P MAI005MA Maimaru Marae 80 Marae Committee N P MAN005MA Mangonui, Cooper's Beach 1,200 Doubtless Bay Wat.Sup.Co N P MAN028MA Mangonui Commercial Area 50 N P MAN030MA Mangaiti Marae 60 Marae Committee N P MAN031MA Mangataipa Marae 80 Marae Committee EI(fdi) P MAN036MA Mangamuka Marae 90 Marae Committee I(fdi) P MAT008MB Matai Bay Motor Camp 60 DOC N P MAT014MA Matauri Bay Motor Camp 30 Motor Camp N P MAT031MA Matihetihe Marae 60 Marae Committee I(fdi) P MAT035MA Mataitaua Marae 30 Marae Committee I(fdi) P MIR001MA Miria Marae 80 Marae Committee N P MOE003MA Moehau Marae 40 Marae Committee N P MOH002MA Mohinui Marae 70 Marae Committee N P MOK006MO Mokonuiarangi Marae 60 Marae Committee I(fdi) P MOR003MA Morehu Marae 90 Marae Committee I(fdi) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Far North District (page 4 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change MOT023MO Motuti Marae 60 Marae Committee EI(fdi) P MOT024MO Motukaraka Marae 75 Marae Committee I(fdi) P ☺ MOT025MO Motukiore Marae 80 Marae Committee N P NGA016MA Ngai Otonga Marae 90 Marae Committee N P NGA026MA Ngatimanawa Marae 80 Marae Committee I(fdi) P ☺ OHA013OH Ohaki Marae 60 Marae Committee I(fdi) P ☺ ORO006OR Orongo Bay Motor Camp 40 Motor Camp N P OTA014MA Otaua Marae 85 Marae Committee I(fdi) P OTA016MA Otatara Marae 90 Marae Committee EI(fdi) P PAG001PA Pagoda Lodge 80 N P PAK003PA Pakanae 160 Pakanae Water Board EI(f) P PAK004PA Pakaraka,Cottages In The Woods 50 Cottages In The Woods N P PAK012PA Pakanae Marae 90 Marae Committee I(fdi) P PAR012MA Parahaki Marae 90 Marae Committee N P PAR013MA Parapara Marae 60 Marae Committee N P PIK001PI Piki Te Aroha Marae 80 Marae Committee EI(fdi) P PIK002PI Pikiparia Marae 80 Marae Committee I(fdi) P POT002MA Potahi Marae 80 Marae Committee N P PUK006PU Pukenui Motor Camp 30 Pukenui Motor Camp N P PUK024PU Puketawa Marae 80 Marae Committee N P RAR002RA Rarawa Motor Camp 90 N P RAW002RM Rawhiti Motor Camp 60 Rawhiti Motor Camp N P ROM001MA Roma Marae 85 Marae Committee N P RUS003RU Russell Bowling Club 250 N P RUS004RU Russell Township-Commercial 200 Hol. Park & FNDC N P SPI001SB Spirits Bay Motor Camp 80 DOC N P TAH007MA Tahaawai Marae 50 Marae Committee N P TAH008TA Tahekeroa Marae 90 Marae Committee I(fdi) P TAI003TA Taipa Sands Motel 50 N P TAI006TA Taipa Resort 50 Taipa Resort N (now on MAN005MA) P TAI007TA Taipa Camping Ground 30 Camping Ground N (zone closed Aug 04) P TAI013MA Taio Marae 90 Marae Committee EI(fdi) P TAP002TM Tapotupotu Motor Camp 10 DOC N P TAU014TA Tauranga Bay Motor Camp 20 Motor Camp N P TAU016TA Taupo Bay Camping Ground 48 Taupo Bay Camping Ground N P TAU024MA Tauteihiihi Marae 80 Marae Committee I(fdi) P TAW004MA Tawai Riri Maihi Kawiti Marae 70 Marae Committee N P TEH009MA Te Huruhi Marae 30 Marae Committee N P TEK014MA Te Kotahitanga Marae 80 Marae Committee N P TEK022TE Te Karae Marae 80 Marae Committee I(fdi) P TEP012MA Te Paatu Marae 50 Marae Committee N P TEP017TE Te Paa A Parore Marae 20 Marae Committee N P TER004MA Te Reo Mihi Marae 30 Marae Committee N P TER005MA Te Rarawa Marae 90 Marae Committee N P TER007TE Te Rangatahi Marae 90 Marae Committee N P TET003MA Te Tuhono Marae 30 Marae Committee EI(fdi) P TEW005MA Te Whaka Mahara Tanga 90 Marae Committee I(fdi) P TEW006MA Te Whiringa O Te Muka Tangata 30 Marae Committee E P THE001TB The Bluff Camping Ground 5 The Bluff Camping Ground N P THE008TH The Park, 90 Mile Beach 60 N P TOM002MA Tominiana Marae 50 Marae Committee N P TUH001TU Tuhirangi Marae 80 Marae Committee I(fdi) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Far North District (page 5 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change URL001UR Urlich Motor Camp 90 N P URU003CA Urupukapuka & Cable Bay Camps 50 DOC N P URU003ZA Zane Grey Restaurant 500 N P WAG001WA Wagener Holiday Park 90 Wagener Park N P WAI045WA Waipapa 150 Peter Locke N P WAI046WA Waimamaku 80 Waimamakau Water Board N P WAI050WR Waitangi Resort Hotel 450 Waitangi Resort Hotel Complied P ☺ WAI123MA Waikaraka Marae 50 Marae Committee N P WAI130MA Waimahae Marae 40 Marae Committee N P WAI148MA Waiparera Marae 50 Marae Committee I(fdi) P WAI153MA Waihou Marae 90 Marae Committee I(fdi) P ☺ WAI154MA Waipuna Marae 80 Marae Committee I(fdi) P WAI157WA Waiwhatawhata Marae 80 Marae Committee I(fdi) P WAI161WA Waiora Marae 80 Marae Committee N P WAI164WA Waitiki Landing 30 Waitiki Landing N P WAI173MA Waimanoni Marae 70 Marae Committee N P WHA027WH Whangaroa Retreat 30 Whangaroa Retreat N P WHA048MA Whangape Marae 70 Marae Committee N P WHA052WH Whatuwhiwhi Holiday Park 90 N P WHI012WH Whirinaki Maori Committee 250 Whirinaki Maori Committe N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies KAI006KA Kaikohe 4,000 Trichloroacetaldehyde I PAI001HA Haruru Falls 1,000 Lead I PAI001HA Haruru Falls 1,000 Trichloroacetaldehyde I ☺ PAI001HA Haruru Falls 1,000 MAV sum ratio for THMs I PAI001OP Opua 1,000 Trichloroacetaldehyde CI ☺ School Supplies TAI008SC Taipa Area School 520 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Kaipara District (page 6 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ARA004AB Aranga Beach 50 Local Authority N P BRY001BM Bryderwyn Maungatoroto 75 Local Authority N P DAR002BB Baylys Beach 700 Local Authority I(fi) P DAR002DT Dargaville Town 4,500 Local Authority I(fi) P GLI001GL Glinks Gully 50 Local Authority I(fdi) P KAI007KD Kaihu-Dargaville 324 Local Authority N P KAI011KA Kaiwaka 50 Local Authority N P KAI014KI Kai Iwi Lakes Camping Ground 80 Local Authority N P MAN003MA Mangawhai Heads 200 Local Authority Complied P MAU001MA Maungaturoto 900 Local Authority Complied P MAU001RM Railway Maungaturoto 80 Local Authority Complied P RUA001RU Ruawai 600 Local Authority Complied P TIN001TI Tinopai 50 Local Authority N P School Supplies ARA006SC Aranga School 40 School BoT I(fdi) P ARA007SC Arapohue School 69 School BoT I(fdi) P KAI028SC Kaihu School 40 School BoT I(fdi) P ☺ KAI029SC Kaiwaka School 170 School BoT I(fdi) P ☺ MAN025SC Mangawhai Beach School 50 School BoT AEI(fdi) P MAT025SC Matakohe School 75 School BoT I(fdi) P ☺ PAP005SC Paparoa School 60 School BoT AEI(fdi) P POU002SC Pouto School 40 School BoT N P PUK009PU Pukearunga Kohanga Reo 35 Kohanga Reo Committee N P TAN003SC Tangiteroria School 60 School BoT I(fdi) P TAN004SC Tangowahine School 50 School BoT N P TEK009SC Te Kopuru School 160 School BoT I(fdi) P ☺ TIN003SC Tinopai School 50 School BoT N P Other Supplies AHI003MA Ahikiwi Marae 80 Marae Committee N P GAT001GA Gateway North Motor Lodge 30 N P KAU002KC Kauri Coast Motor Camp 50 Kauri Coast Motor Camp N P MAN020MA Mangawhai Village Camp Ground 40 N P MAN037MA Mangawhai Hideaway Camp Ground 40 N P MAT029MA Matatina Marae 60 Marae Committee N P MAT037MA Matakohe Camping Ground 40 N P MOI001MO Moir's Point Christian Camp 90 Camp Trust Board N P NGA019MA Ngatai Whakarongorua 40 Marae Committee N P OAK003OA Oakridge Camp 70 YWAM, Oakridge Trust N P OTA015MA Otamatea Marae 90 Marae Committee N P OTU005MA Oturei Marae 80 Marae Committee N P PAH004MA Pahinui Marae 30 Marae Committee N P PAH005PA Pahi Motor Camp 40 Pahi Domain Board N P REH001RE Rehutai Road, Rehutai 45 Rehutai Road Community N P RIP001MA Ripia Marae 30 Marae Committee N P RIV012RI River Motor Camp, Mangawhai 40 Camp Owner N P TAI012MA Taita Marae 80 Marae Committee N P TAM003MA Tama Te Uaua Marae 60 Marae Committee N P TAN006MA Tangiteroria Marae 90 Marae Committee N P TRO003TR Trounson Camping Ground 40 N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Kaipara District (page 7 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change WAI124MA Waikara Marae 30 Marae Committee N P WAI129MA Waiaotea Marae 30 Marae Committee N P WAI136WA Waipoua HQ and Camp Ground 80 DOC AEI(fdi) P WAI166WA Waikaretu Marae 80 Marae Committee N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies RUA001RU Ruawai 600 Nickel L ☺ RUA001RU Ruawai 600 MAV sum ratio for THMs C ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Whangarei District (page 8 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BRE001BR Bream Bay 5,900 Local Authority Complied HIK001HI Hikurangi 1,330 Local Authority Complied ☺ MAN004MA Mangapai 92 Local Authority Complied P MAU002MA Maungakaramea 200 Local Authority Complied P WHA007HE Whangarei Heads 7,200 Local Authority Complied P WHA007WH Whangarei 48,000 Local Authority Complied (i) P School Supplies GLE011SC Glenbervie School 190 School BoT Complied P HEL002SC Helena Bay School 20 School BoT I(fdi) (zone now closed) P HUK001CO Hukerenui Community 100 School BoT N P HUK001HU Hukerenui School 150 School BoT I(fdi) P ☺ KAU004SC Kaurihohore School 130 School BoT I(fdi) P KOK001SC Kokopu School 90 School BoT I(fdi) P ☺ MAH013MA Mahore Te Kohanga Reo 20 Kohanga Reo Committee N P MAN007MA Mangakahia Area School 250 School BoT I(fdi) P MAT007MA Matarau School 190 School BoT AEI(fdi) P NGA017SC Nga Tau E Toru Kohunga Reo 30 Kohanga Reo Committee N P NGU002NG Ngunguru School 165 School BoT N P PAK001PA Pakotai School 25 School BoT I(fdi) P POM002PO Pompallier College 480 School BoT I(f) P PUN002PS Punaruku School 90 School BoT I(fdi) P PUR001PU Purua School 30 School BoT I(fdi) P TAU005TA Tauraroa Area School 450 School BoT I(f) P ☺ TEH002TE Te Horo School 74 School BoT N P WAI095SC Waiotira School 40 School BoT I(fdi) P WHA008WH Whananaki School 40 School BoT I(fdi) P Other Supplies AKE001MA Akerama Marae 60 Marae Committee N P BLA002BB Bland Bay Motor Camp 90 Bland Bay Motor Camp I(fdi) P ☺ HIR003HI Hiruharama Marae 60 Marae Committee N P KAM001KS Kamo Spr.Caravan Pk & Xn Coll. 400 Nthland Christian Fship N P KOR005KO Korokota Marae 70 Marae Committee N P MAN040MA Mangawhero Marae 80 Marae Committee N P MAT041MA Matawaia Marae 70 N P MAU006MA Maungarongo Marae 70 Marae Committee N P MOK008MO Mokau Marae 70 Marae Committee N P MOT007MF Motutara Farm Camping Ground 90 Motutara Farm Camping Gr I(fdi) P ☺ NGA023MA Ngararatunua Marae 90 Marae Committee N P NGU001NG Ngunguru Motor Camp 50 Ngunguru Motor Camp I(fdi) P ☺ NGU004NG Ngunguru Retirement Village 80 Ngunguru R Village Trust I(fdi) P OAK002OB Oakura Motels and Caravan Park 80 Oakura Bay Motor Camp N P PAC001PA Pacific Rendezvous Motel 60 Pacific Rendezvous Motel N P PAR015MA Parihaka Marae 70 Marae Committee N P PEH001MA Pehiaweri Marae 70 Marae Committee N P SAN002SA Sands Motel 25 I(fdi) P SEA002SE Sea Breeze Motel 6 Sea Breeze Motel N P TAU020MA Tau Henare Marae 60 Marae Committee N P TEA011TE Te Aroha Marae 90 Marae Committee N P TER009TE Te Ranginui Marae 80 Marae Committee N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Whangarei District (page 9 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change TET004MA Te Tarai O Rahiri Marae 90 Marae Committee N P TRE001CA Treasure Island Motor Camp 90 Motor Camp I(fdi) P ☺ TUP001MA Tuparehuia Marae 40 Marae Committee N P TUT004TU Tutukaka Coast Motor Lodge 80 I(fdi) P ☺ WHA012WN Whangaruru North DOC 80 DOC I(fdi) P ☺ WHA013WH Whananaki DOC Camp 80 DOC N P WHA019WH Whangaruru Harbour Motor Camp 50 Whangaruru Harbour Motor N P WHA020WS Whananaki Store Motor Camp 70 Whananaki Store Mot Camp I(fdi) P ☺ WHA036MA Whakapara Marae 70 Marae Committee N P WHA055WH Whakapaumahara Marae 70 N P WHI010WH Whiti Ora Marae 70 Marae Committee N P WHI011WH White Sands Motor Lodge 20 N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies BRE001BR Bream Bay 5,900 Lead C BRE001BR Bream Bay 5,900 Bromodichloromethane Complied BRE001BR Bream Bay 5,900 Trichloroacetaldehyde C ☺ BRE001BR Bream Bay 5,900 MAV sum ratio for THMs C ☺ BRE001BR Bream Bay 5,900 MAV sum ratio for HAAs Complied ☺ HIK001HI Hikurangi 1,330 MAV sum ratio for THMs Complied WHA007HE Whangarei Heads 7,200 Trichloroacetaldehyde Complied WHA007WH Whangarei 48,000 Trichloroacetaldehyde Complied WHA007WH Whangarei 48,000 MAV sum ratio for THMs Complied ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Auckland City (page 10 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies AUC001AU Auckland 221,259 Metro Water Ltd. Complied AUC001CB Central Business District Auck 11,344 Metro Water Ltd. Complied AUC001HI Hillsborough 47,759 Metro Water Ltd. Complied AUC001HO Mt Hobson 25,210 Metro Water Ltd. Complied AUC001MA Maungawhau 40,183 Metro Water Ltd. Complied AUC001ON Onehunga 20,981 Metro Water Ltd. Complied AUC001OT Otahuhu 12,850 Metro Water Ltd. Complied MAT034MA Matiatia Wharf 30 Local Authority From Apr ☺ ORA006OR Orapiu Wharf 10 Local Authority N P School Supplies FOS001FO Fossil Bay Kindergarten 34 I(fdi) P KAI036SC Kaitoki Primary School 69 School BoT N P MOT013MO Mother Hubbards Childcare 32 Mother Hubbards Ccare N (zone now closed) P MUL001SC Mulberry Grove School 26 School BoT N P OKI004SC Okiwi School 40 School BoT N P WAI098SC Waiheke High School 1,000 School BoT AEI(fdi) P WAI098TE Te Huruhi School 1,100 School BoT AEI(fdi) P WAI167WA Waiheke Island Playcentre 50 N P WAI168WA Waiheke Community Childcare 66 Childcare centre Complied P ☺ Other Supplies GRE007GR Greenlane Hospital 2,000 Auckland DHB Complied P JET001JE Jetty Tourist Lodge 2 Jetty Tourist Lodge N P MED001ME Medlands Beach Backpackers 5 Medlands Bch Backpackers N P MOL002MO Molly Malones 55 N P 1 MOT021MO Motutapu Island DOC Camp 20 AEI(fdi) P ☺ MOT022MO Motutapu Outdoor Ed. Camp 5 Motutapu Outdoor Ed Camp I(fdi) P NEW005NE New World Waiheke 30 New World Waiheke N (zone closed 2003) P ORA007OR Orama Christian Community 20 Orama Christian Trust N P PIG002PI Pigeons Lodge-Great Barrier Is 6 Pigeons Lodge N P POR009PO Port Fitzroy Wharf 100 Resident & Ratepayer Ass N P ROT009RO Rotoroa Institute, Rotoroa Is. 60 Salvation Army I(fdi) P ☺ SCH001SC Schooner Cafe, Harvey Travel 40 N P SIM001SI Simkin Lodge 4 Spida Investment Ltd N (zone closed 2003) P SOU005SO Southpark 150 Southpark Utilities Complied P ☺ STP002ST St Peters Catholic Church 25 Catholic Church N (zone now closed) P STP003ST St Pauls Presbyterian Church 50 Presbyterian Church N P TIP001TI Tipi & Bob's Holiday Lodge 12 Tipi & Bob's Hol. Lodge I(fdi) P ☺ 2 VIN001VI Vino Vino Bar Café 65 Vino Vino Bar Cafe I(fi) P ☺ WAI109WA Waiheke Sports Club 50 N P WAI110WA Waiheke Island Aerodrome 6 Waiheke Island Aerodrome N P WAI112WA Waiheke Palm Beach Lodge 3 Waiheke Palm Beach Lodge N P WAI113WA Waiheke Island Resort 40 Waiheke Island Resort I(fdi) P WAI114WA Waiheke Kindergarten 43 Kindergarten I(fdi) P ☺ WAI115WA Waiheke Punga Lodge 8 Waiheke Punga Lodge N P 3 WAI116WA Waiheke Com.Hlth Care/St Johns 25 Waiheke Health Trust AE P ☺ WAI117WA Waiheke Baptist Church 50 Baptist Church N (zone closed 2003) P WAI119WA Waiheke Golf Club 40 Waiheke Golf Club N P WAI142WA Waiheke Is, Salvage Restaurant 25 N P WAI143WA Waiheke Is, Stjepans Pizza Bar 50 N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Auckland City (page 11 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change WAI144WA Waiheke, Onetangi Apartments 12 I(fdi) P WAI163WA Waiheke Community Rec Centre 200 Waiheke Rec Centre Trust N P WHA043WH Whangaparapara Wharf 100 Resident & Ratepayer Ass N P 1 now called Homebay Camp 2 now called Old Flag Family Trust 3 now called Waiheke Health Trust Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies AUC001AU Auckland (TP00129) 221,259 Fluoride Complied AUC001AU Auckland (TP00165) 221,259 Fluoride Complied AUC001AU Auckland (TP00166) 221,259 Fluoride Complied AUC001CB Central Business District Auck (TP00129) 11,344 Fluoride Complied AUC001CB Central Business District Auck (TP00165) 11,344 Fluoride Complied AUC001CB Central Business District Auck (TP00166) 11,344 Fluoride Complied AUC001HI Hillsborough (TP00129) 47,759 Fluoride Complied AUC001HI Hillsborough (TP00165) 47,759 Fluoride Complied AUC001HI Hillsborough (TP00166) 47,759 Fluoride Complied AUC001HO Mt Hobson (TP00129) 25,210 Fluoride Complied AUC001HO Mt Hobson (TP00165) 25,210 Fluoride Complied AUC001HO Mt Hobson (TP00166) 25,210 Fluoride Complied AUC001MA Maungawhau (TP00129) 40,183 Fluoride Complied AUC001MA Maungawhau (TP00165) 40,183 Fluoride Complied AUC001OT Otahuhu (TP00129) 12,850 Fluoride Complied AUC001OT Otahuhu (TP00165) 12,850 Fluoride Complied AUC001OT Otahuhu (TP00166) 12,850 Fluoride Complied School Supplies WAI098TE Te Huruhi School 1,100 Nickel N WAI098TE Te Huruhi School 1,100 Lead N Other Supplies GRE007GR Greenlane Hospital (TP00129) 2,000 Fluoride Complied GRE007GR Greenlane Hospital (TP00165) 2,000 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Franklin District (page 12 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BOM001BO Bombay 484 Local Authority Complied P BUC001BU Buckland 504 Local Authority Complied P ☺ CLA001CL Clarks Beach 1,152 Local Authority Complied P DOU003DO Douglas Rd, Pukekohe 95 Local Authority Complied P GLE002GL Glenbrook Beach 370 Local Authority Complied P ONE004ON Onewhero 50 Local Authority Complied P PAT002PA Patumahoe 560 Local Authority Complied POK001PO Pokeno 420 Local Authority AE P POR005PW Port Waikato 50 Local Authority Complied P ☺ PUK002AN Anzac 2,662 Local Authority Complied P PUK002KI Kitchener 11,500 Local Authority Complied P PUK002PH Hilltop 650 Local Authority AE P TUA002TN Tuakau North 690 Local Authority Complied P TUA002TS Tuakau South 2,613 Local Authority Complied P WAI008CO Colombo Road 550 Local Authority Complied P WAI008VI Victoria Ave 6,700 Local Authority Complied P WAI069WA Waiau Beach 180 Local Authority Complied P School Supplies AKA003SC Aka Aka Primary School 132 School BoT Complied P ☺ ARA009SA Ararimu School Zone A (rain) 131 School BoT I(fi) P ☺ ARA009SB Ararimu School Zone B (Bore) 110 School BoT I(fi) P AWH001SC Awhitu School 108 School BoT AEI(fdi) P ☺ FEL001SC Felix Donelly College 60 School BoT N P GLE005GP Glenbrook Primary School 336 School BoT AE P GLE006GM Glen Murray School 25 School BoT N (zone now closed) P HAR002SC Harrisville School 202 School BoT AEI(fdi) P KAI030SC Kaiaua School 65 School BoT I(fdi) P ☺ KAR004KA Karaka School 175 School BoT Complied P ☺ MAN011MA Mangatawhiri School 100 School BoT E P ☺ MAN041MA Manukau Peninsula Playcentre 30 Counties Playcentre Ass. N P MAU004SA Mauku Primary School Zone A 71 School BoT N P MER003SC Mercer School 35 School BoT N P 1 ONE003EC Onewhero Early Childhood Cent. 27 School BoT N (zone closed Jan 04) P ONE003ON Onewhero Area School 250 School BoT N P OTA006OP Otaua Primary School 110 School BoT N P PAE006SC Paerata School 110 School BoT EI(fdi) P PAP007SC Paparimu Primary School 148 School BoT I(f) P ☺ POL001SA Pollok School Zone A 20 School BoT N P PUK007PU Pukekawa School 150 School BoT Complied (i) P ☺ PUK017SC Pukeoware School 140 School BoT I(fdi) P PUK018SC Pukekohe East School 150 School BoT From Jul P ☺ RAM001RA Ramarama School 175 School BoT Complied P STS001SS St Stephens School 170 School BoT N (zone closed 2003) P TEH003TH Te Hihi Primary School 300 School BoT Complied P ☺ TEK007TK Te Kohanga School 80 School BoT I(fdi) P ☺ WAI051CL Waikaretu School Classrooms 25 School BoT N (zone now closed) P WAI051WA Waikaretu Sch. Drink Fountains 23 School BoT I(fdi) P WAI096SC Waiau Pa School 350 School BoT N P WAI097SC Waipipi School 140 School BoT I(fdi) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Franklin District (page 13 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change WES005WC Wesley College 500 School BoT Complied P ☺

1 Now on ONE003ON supply Other Supplies BIG002BI Big Bay Motor Camp 2 Big Bay Motor Camp N P BOM002BO Bombay Motorway Services 300 BP Oil NZ Ltd I(i) P CAM005CA Camp Adair 100 YMCA Auckland I(fdi) P ☺ DIN001DI Dingwall Trust Holiday House 10 Dingwall Trust N P KIN002KH Kingseat Community 400 The Prince Corperation Complied P ☺ MER004ME Mercer Country Stop 50 N P ORU003OR Orua Motor Camp 12 Orua Motor Camp N P VIL001VI Village Fields Subdivision 80 Village Fields Water Co. N P WAI118WA Waiau Pa Kindergarten 62 Kindergarten N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies CLA001CL Clarks Beach 1,152 Boron AC CLA001CL Clarks Beach 1,152 Fluoride Complied PAT002PA Patumahoe 560 Lead AC PUK002AN Anzac (TP00123) 2,662 Fluoride Complied PUK002AN Anzac (TP00123) 2,662 Nitrate (as NO3) Complied PUK002AN Anzac 2,662 Nickel Complied PUK002AN Anzac 2,662 Lead AC PUK002KI Kitchener (TP00123) 11,500 Fluoride Complied PUK002KI Kitchener (TP00123) 11,500 Nitrate (as NO3) Complied PUK002KI Kitchener 11,500 Lead AC PUK002PH Hilltop (TP00123) 650 Fluoride Complied PUK002PH Hilltop (TP00123) 650 Nitrate (as NO3) Complied PUK002PH Hilltop 650 Lead AC ☺ TUA002TS Tuakau South 2,613 Aggressiveness N WAI008CO Colombo Road 550 Arsenic Complied WAI008VI Victoria Ave 6,700 Arsenic Complied School Supplies PAE006SC Paerata School (TP00123) 110 Fluoride Complied PAE006SC Paerata School (TP00123) 110 Nitrate (as NO3) Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Manukau City (page 14 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies AUC002EA Earls Court 5,000 Local Authority Complied AUC002HH High Head 6,000 Local Authority Complied ☺ AUC002MM Manukau Misc. 280,500 Local Authority Complied AUC002PA Papatoetoe 20,000 Local Authority Complied KAW006HA Kawakawa Bay Hall 100 Local Authority AE P 1 KAW006KI Kawakawa Bay Kindergarten 17 Local Authority N (zone closed Jan 04) P

1 Now on KAW006HA supply School Supplies BEA001BE Beachlands School 420 School BoT AE P BRO008SC Brookby School 90 School BoT AE P CLE001CP Clevedon Primary School 400 School BoT Complied P ☺ CLE004CL Clevedon Kindergarten 60 Kindergarten I(fdi) P CLI009CL Clifton Bay Childcare Centre 77 Clifton Rd Holdings Ltd N (zone closed) P COA004CO Coastal Kidz, Beachlands 70 Kiddy Cooperative N P HUN005SC Hunua School 150 School BoT Complied P ☺ MAR006MA Maraetai Beach School 230 School BoT Complied P MAR022MA Maraetai Beachlands Playcentre 79 Tamaki Playcentre Ass. N P ORE004SC Orere School 36 School BoT I(fi) P ☺ WHI004SC Whitford Pre-School 80 Preschool N P WHI013WH Whitford Playcentre 45 Tamaki Playcentre Ass. N P Other Supplies CLE005CL Clevedon Presbyterian Church 230 N P MAR019MA Maraetai Beach Boat Club Wharf 100 Maraetai Beach Boat Club N P MAR023MA Maraetai Beachlands Kindgtn 60 Kindergarten N P PIN003PI Pine Harbour Marina Wharf 400 Pine Harbour Marina AE P WHI005WH Whitford Settlers Cafe 90 Cafe Owners N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies AUC002EA Earls Court (TP00129) 5,000 Fluoride Complied AUC002HH High Head (TP00129) 6,000 Fluoride Complied AUC002HH High Head 6,000 Cadmium Complied AUC002MM Manukau Misc. (TP00129) 280,500 Fluoride Complied AUC002MM Manukau Misc. 280,500 Nickel Complied AUC002PA Papatoetoe (TP00129) 20,000 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. North Shore City (page 15 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies NOR001CE North Shore Central 51,199 Local Authority Complied NOR001EA North Shore East 44,262 Local Authority Complied NOR001NT North Shore North 22,899 Local Authority Complied NOR001SO North Shore South 89,354 Local Authority Complied School Supplies (No school supplies are included on the Register) Other Supplies ALB002AO Albany Outdoor Education Trust 45 Albany Outdoor Education N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies NOR001CE North Shore Central (TP00165) 51,199 Fluoride Complied NOR001CE North Shore Central 51,199 Aggressiveness Complied (N)* NOR001EA North Shore East (TP00129) 44,262 Fluoride Complied NOR001NT North Shore North (TP00165) 22,899 Fluoride Complied NOR001SO North Shore South (TP00129) 89,354 Fluoride Complied NOR001SO North Shore South 89,354 Aggressiveness Complied (N)*

* Deemed to comply because conflicting advice given to the water supplier by HPO contributed to consumers not being advised to flush taps prior to use.

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Papakura District (page 16 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies PAP001PC Papakura City 26,870 United Water Complied PAP001RH Red Hill 2,500 United Water Complied PAP001TA Takanini 10,870 United Water Complied School Supplies ARD003SC Ardmore School 260 School BoT N (zone closed Jan 04) HUN006HU Hunua Playcentre 50 Counties Playcentre Ass. N P KAR016KA Karaka Playcentre 300 Karaka Sports Ground N P Other Supplies ARD002AR Ardmore Airport 500 Ardmore Utilities Ltd N KAR010KA Karaka Park 150 Karaka Pk Water Supp Ltd N P KAR015KA Karaka Learning Centre 50 AE P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies PAP001RH Red Hill 2,500 Trichloroacetaldehyde C PAP001RH Red Hill 2,500 MAV sum ratio for THMs Complied PAP001RH Red Hill 2,500 Aggressiveness Complied (N)* PAP001TA Takanini (TP00129) 10,870 Fluoride Complied School Supplies ARD003SC Ardmore School (TP00129) 260 Fluoride Complied Other Supplies ARD002AR Ardmore Airport (TP00129) 500 Fluoride Complied

* Deemed to comply because conflicting advice given to the water supplier by HPO contributed to consumers not being advised to flush taps prior to use.

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Rodney District (page 17 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BUI001BU Building Blocks Childcare Cntr 50 Local Authority * N P HEL001HE Helensville 2,673 Local Authority Complied HEL001PA Parakai 853 Local Authority Complied P HIB002HI Hibiscus Coast 26,415 Local Authority Complied HIB002WA Waiwera 350 Local Authority Complied ☺ HUA002HU Huapai Depot 70 Local Authority I(d) P HUA003HU Huapai Domain 10 Local Authority I(d) P ☺ MAR007MB Martins Bay Holiday Camp 10 Local Authority Complied P MUR003MU Muriwai 450 Local Authority Complied RED002RE Redhills 80 Local Authority Complied RIV013RI Riverhead Park 40 Local Authority I(d) P SAN007SA Sandspit Wharf 300 Local Authority I(d) P ☺ SHE006SH Shelly Beach Reserve 10 Local Authority I(d) P ☺ SIN001SI Sinclair Park 10 Local Authority I(d) P ☺ SNE001SN Snells/Algies 4,605 Local Authority Complied WAI104WA Waitakere North 135 Local Authority Complied WAR001WA Warkworth 3,923 Local Authority Complied ☺ WEL001WE Wellsford 2,098 Local Authority Complied * erroneously listed as a LA-run supply School Supplies AHU002SC Ahuroa School 19 School BoT N P COA002SC Coatesville School 198 School BoT AE P COA003CO Coatesville Playcentre 66 N P DAI001DF Dairy Flat School 270 School BoT N P FAN001FA Fantails Childcare 54 N P GRE008GR Greenpark Preschool 35 N P HAP001SC Happy Rainbow Primary School 60 School BoT N P HUA001SC Huapai School 380 School BoT I(fdi) P ☺ KAI016KF Kaipara Flats Primary School 80 School BoT Complied P KAU003SC Kaukapakapa School 240 School BoT N P KAU007KA Kaukapakapa Preschool 38 N P KIN007SC Kings Coll Ahuroa Venture Camp 40 School BoT N P LEI003LE Leigh Primary School 80 Leigh Fisheries N P MAH008SC Mahurangi Christian School 100 School BoT N P MAT011MA Matakana Primary School 392 School BoT I(fdi) P MAT028MA Matakana Playcentre 40 Playcentre I(fdi) P MAT039MA Matakana Small Steps Preschool 45 Jaycon Property Trust Complied P PAK011SC Pakiri Primary School 14 School BoT N P PEN004SC Peninsula Play & Learn Centre 36 Kiddicorp N P RIV011SC Riverhead School 260 School BoT Complied P ☺ TAP004TA Tapora Primary School 62 School BoT AEI(fdi) P ☺ TAU010TA Tauhoa Primary School 35 School BoT N P TAU013SC Taupaki School 240 School BoT AEI(fdi) P ☺ TOM001TO Tomorata Primary School 100 School BoT I(fdi) P TOM003TO Tomarata Play Cntr. 30 School BoT I(fdi) P VIL002VI Village Kindergarten, Kumeu 43 N P WAI084SC Waitoki School 102 School BoT N P WAI085SC Waimauku School 620 School BoT AEI(fdi) P WAI086SC Waioneke School 72 School BoT N P WAI099SC Wainui School 200 School BoT N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Rodney District (page 18 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change WAI169WA Waimauku Childcare Centre 64 Complied P ☺ WAI170WA Waimauku Playcentre 99 N P WOO007SC Woodhill School 120 School BoT I(fi) P ☺ Other Supplies ALB005AL Albany, Killashandra Resthome 14 Killashandra Resthome N P COU003CO Country Bears, Kumeu 88 N P FOR003HA Forest Reserve Hall 60 Forest Reserve Hall Soc. N P GOA001GI Goat Island Camping Ground 5 Camping Ground AEI(d) P HAR003HA Hare Krishna Comm. Riverhead 35 Community supply N P KAU005KA Kaukapakapa Bowling Club 16 Bowling Club N P KAU006KA Kaukapakapa Hotel 20 Kaukapakapa Hotel N P KAW004KI Kawau Island Yacht Club 35 Kawau Island Yacht Club N P KAW005KI Kawau Island Historic Reserve 25 DOC AEI(di) P KUM003KU Kumeu Montessori 20 N P LEE003LE Lees Wharf 100 Lees Boatbuilders N P LEI002LL Leigh Laboratory 35 University of Auckland AE P LEI005LE Leigh Hotel 2 Leigh Hotel N P LEI006LE Leigh Wharf 100 Leigh Fisheries N P LIF002LI Lifeway College 120 Lifeways Ministries Trus N P MAH003MR Mahurangi Regional Park 1 Auckland Regional Counci I(d) P ☺ MAT040HU Hunting Lodge 100 Matua Valley Wines Ltd N P MAT040WI Winery 45 Matua Valley Wines Ltd I(fdi) P ☺ 1 MUR004MU Muriwai Lodge Caravan Park 20 Camp Ground Owners N (zone closed 2003) P MUR005MU Muriwai, Houghtons Bush Camp 80 Camp Owners AE P OMA011OM Omaha Community Hall 180 N P OMA012SC Omaha Surf Club 10 Omaha Surf Club N P PAH002PF Pah Farm Fishing Lodge 100 Pah Farm (Te Pa Ika Nui) N P PAK010PA Pakiri Motor Camp 2 Pakiri Motor Camp I(d) P PEN001PC Peninsula Club Retiremt Resort 300 Peninsula Club Retiremt N P PEN003PE Pennys Place ECC, Dairy Flat 20 N P PUR004PP Puriri Park Camping Ground 100 Camping Ground I(d) P ☺ SAN003SM Sandspit Motor Camp 25 Sandspit Motor Camp AEI(d) P SAN008SA Sandspit Yacht Club 100 Sandspit Yacht Club N P SHA002SR Shakespear Regional Park 3 Auckland Regional Counci I(fdi) P SHE005SH Sheepworld Motor Camp 25 Sheepworld Motor Camp AE P STI003SC Stillwater Camping Ground 5 Camping Ground AEI(d) P TAU025TA Taupaki Kindergarten 62 Kindergarten N P TAW001TR Tawharanui Regional Park 260 Auckland Regional Counci AEI(fdi) P TEH001TE Te Hana 60 Project Holdings Ltd N P TEH004TE Te Hana - Transported 30 Water Transport Company N P WAI054WR Waioma Rest Home 32 Waioma Rest Home N P WAS001WM Waste Management, Dairy Flat 54 Waste Management NZ Ltd AEI(fdi)L P WEI001WE Weiti Boating Club Wharf 100 Weiti Boating Club N P WHA018WC Whangateau Camping Ground 7 Camping Ground I(d) P

1 Now called Muriwai Lodge

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Rodney District (page 19 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HEL001HE Helensville 2,673 Cadmium Complied ☺ HEL001HE Helensville 2,673 Bromodichloromethane AC ☺ HEL001HE Helensville 2,673 MAV sum ratio for THMs AC ☺ HEL001PA Parakai 853 Bromodichloromethane Complied ☺ HEL001PA Parakai 853 MAV sum ratio for THMs AC ☺ HIB002HI Hibiscus Coast (TP00165) 26,415 Fluoride Complied HIB002HI Hibiscus Coast (TP00166) 26,415 Fluoride Complied HIB002WA Waiwera (TP00165) 350 Fluoride Complied HIB002WA Waiwera (TP00166) 350 Fluoride Complied RED002RE Redhills (TP00165) 80 Fluoride Complied RED002RE Redhills (TP00166) 80 Fluoride Complied SNE001SN Snells/Algies 4,605 Nickel Complied ☺ WAI104WA Waitakere North (TP00165) 135 Fluoride Complied WAI104WA Waitakere North (TP00166) 135 Fluoride Complied WAR001WA Warkworth 3,923 MAV sum ratio for THMs Complied ☺ WEL001WE Wellsford 2,098 Trichloroacetaldehyde AC ☺ WEL001WE Wellsford 2,098 MAV sum ratio for THMs AC ☺ School Supplies WAI085SC Waimauku School 620 Nickel N WAI085SC Waimauku School 620 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waitakere City (page 20 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies PIH002PC Piha Camping Ground 4 Local Authority N P WAI009GL Glen Eden / New Lynn 56,500 Local Authority Complied WAI009HE Henderson 106,500 Local Authority Complied WAI009HU Huia Village 520 Local Authority Complied WAI009LA Laingholm 2,700 Local Authority Complied WAI009MO Montana 4,600 Local Authority Complied WAI009OR Oratia 1,440 Local Authority Complied WAI009TE Te Henga 720 Local Authority Complied School Supplies WAI171WA Waitarua Playcentre 40 Playcentre N P Other Supplies DEF001DE Defence Auckland 3,000 Serco for Min.Defence Complied PIH002PN North Piha Water Supply 80 North Piha WS Soc Ltd N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies WAI009GL Glen Eden / New Lynn (TP00165) 56,500 Fluoride Complied WAI009GL Glen Eden / New Lynn (TP00166) 56,500 Fluoride Complied WAI009HE Henderson (TP00165) 106,500 Fluoride Complied WAI009HE Henderson (TP00166) 106,500 Fluoride Complied WAI009LA Laingholm (TP00165) 2,700 Fluoride Complied WAI009LA Laingholm (TP00166) 2,700 Fluoride Complied WAI009MO Montana (TP00165) 4,600 Fluoride Complied WAI009MO Montana (TP00166) 4,600 Fluoride Complied WAI009OR Oratia (TP00165) 1,440 Fluoride Complied WAI009OR Oratia (TP00166) 1,440 Fluoride Complied WAI009OR Oratia 1,440 MAV sum ratio for THMs Complied WAI009TE Te Henga (TP00165) 720 Fluoride Complied WAI009TE Te Henga (TP00166) 720 Fluoride Complied WAI009TE Te Henga 720 MAV sum ratio for THMs Complied Other Supplies DEF001DE Defence Auckland (TP00165) 3,000 Fluoride Complied DEF001DE Defence Auckland (TP00166) 3,000 Fluoride Complied DEF001DE Defence Auckland 3,000 Nickel N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Hamilton City (page 21 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies HAM001HA Hamilton City 129,400 Local Authority Complied ☺ TEM003TE Templeview 1,200 Local Authority Complied (fdi) ☺ School Supplies (No school supplies are included on the Register) Other Supplies (No other supplies are included on the Register)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HAM001HA Hamilton City (TP00066) 129,400 Fluoride Complied ☺ HAM001HA Hamilton City 129,400 Antimony Complied HAM001HA Hamilton City 129,400 Lead Complied TEM003TE Templeview (TP00066) 1,200 Fluoride Complied ☺ TEM003TE Templeview 1,200 Copper Complied ☺ TEM003TE Templeview 1,200 Lead Complied ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Hauraki District (page 22 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies HAU001EA Hauraki Plains East 1,135 Local Authority EI(fdi) P HAU001KE Hauraki Plains, Kerepehi 2,200 Local Authority I(fdi) P HAU001WE Hauraki Plains West 2,200 Local Authority I(fdi) P ☺ KAI013KA Kaimanawa 100 Local Authority I(fdi) P KAR001KA Karangahake 140 Local Authority I(fdi) P MAC003MA Mackaytown 140 Local Authority EI(fdi) P OHI001OH Ohinemuri 600 Local Authority EI(fdi) P PAE001PA Paeroa 4,000 Local Authority I(fdi) P WAI003WA Waihi 4,450 Local Authority I(fdi) P WAI043WA Waikino 340 Local Authority I(fdi) P School Supplies KAI024SC Kaihere School 66 School BoT I(fdi) P ☺ WAI147SC Waimata School 75 School BoT EI(fdi) P ☺ Other Supplies (No other supplies are included on the Register)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HAU001EA Hauraki Plains East 1,135 Lead N OHI001OH Ohinemuri 600 Cadmium N OHI001OH Ohinemuri 600 Lead N OHI001OH Ohinemuri 600 MAV sum ratio for HAAs N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Matamata-Piako District (page 23 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies HIN002HI Hinuera Township 35 Local Authority I(d) P ☺ MAT004MA Matamata Township 5,600 Local Authority I(f) P ☺ MAT004WA Waharoa 634 Local Authority I(fdi) P MOR001MO Morrinsville Township 5,600 Local Authority I(f) P TAH001TA Tahuna Township 120 Local Authority I(f) P TEA003TE Te Aroha 3,465 Local Authority I(fi) P TEA005WE Te Aroha West 50 Local Authority Complied P ☺ TEP003TE Te Poi Township 100 Local Authority Complied P ☺ School Supplies ELS001SC Elstow School 150 School BoT Complied P ☺ KER003SC Kereone School 40 School BoT I(fdi) P KIW006SC Kiwitahi School 42 School BoT EI(fdi) P MAN034SC Mangateparu School 44 School BoT N (zone closed Dec 04) P MAN035SC Manawaru School 74 School BoT I(fdi) P MOT015SC Motumaoho School & Community 100 School BoT I(fdi) P SPR006SC Springdale School 60 School BoT EI(fi) P TAT001SC Tatuanui School 115 School BoT I(fdi) P TAU017SC Tauhei School 60 School BoT EI(di) P WAI165SC Wairere Primary School 93 School BoT I(fdi) P WAL003WA Walton Primary School 99 School BoT Complied P Other Supplies ING003IN Inghams Poultry 360 Inghams Poultry N (zone closed Mar 04) P TAT002TA Tatua Co-op Dairy Co. Ltd. 120 Tatua Dairy Complied TOT004TO Totara Springs Christian Cent. 75 Christian Trust E P WAI049WA Waitoa Village & Factory 400 Fonterra Ltd Complied ☺ WAI091WA Waihou Township 105 Waihou Water Assn.Inc. EI(fi) P WOO009WO Wood Road 180 Wallace Corporation Complied P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies MAT004MA Matamata Township (TP00133) 5,600 Fluoride N MAT004WA Waharoa (TP00133) 634 Fluoride N MOR001MO Morrinsville Township 5,600 Trichloroacetaldehyde N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Otorohanga District (page 24 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ARO001AO Aotearoa Road,Arohena 120 Local Authority EI(fi) P ARO001MA Mangare Road, Arohena 120 Local Authority I(fi) P KAW001KA Kawhia Township 500 Local Authority I(fi) P OTO001OT Otorohanga 2,875 Local Authority I(fdi) P RAN006RA Ranginui 90 Local Authority EI(fi) P TIH001TI Tihiroa 400 Local Authority I(fi) P WAI047WA Waipa 175 Local Authority I(fi) P School Supplies HAU006SC Hauturu School 20 School BoT I(fdi) P KIO001SC Kio Kio School 182 School BoT I(fdi) P ☺ KOR003SC Korakonui School 192 School BoT EI(fdi) P MAI006SC Maihihi School 80 School BoT EI(fdi) P NGU003SC Ngutunui School 15 School BoT Complied (d) P ☺ OPA003SC Oparau School 13 School BoT EI(fdi) P OTE005SC Otewa School 75 School BoT EI(fd) P ☺ Other Supplies WAI013WI Waikeria Institutions 1,252 Dept. of Corrections Complied P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Other Supplies WAI013WI Waikeria Institutions 1,252 Trichloroacetaldehyde N WAI013WI Waikeria Institutions 1,252 MAV sum ratio for HAAs N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Ruapehu District (page 25 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies NAT001NA National Park 240 Local Authority Complied P OHA001OH Ohakune Township * 1,500 Local Authority I(i) P ☺ OHU001OH Ohura 374 Local Authority I(di) P OWH001OW Owhango 250 Local Authority Complied P ☺ PIR001PI Piriaka 100 Local Authority I(fdi) P ☺ RAE001RA Raetihi Township * 1,300 Local Authority I(di) P TAU003TA Taumarunui 5,200 Local Authority I(fi) P School Supplies KAI037SC Kaitieke School 14 School BoT I(fdi) P KIR002SC Kirikau School 20 School BoT EI(fdi) P MAT036SC Matiere School 46 School BoT N P NGA025SC Ngakonui School 130 School BoT EI(fdi) P ☺ NGA028SC Ngapuke School 70 School BoT I(fdi) P ONG001SC Ongarue School 20 School BoT I(fdi) P ORA005SC Orautoha School * 25 School BoT N P OTU006SC Otunui School 6 School BoT I(fdi) P PIP002SC Pipiriki School * 10 School BoT N P TOK011SC Tokirima School 11 I(fdi) P ☺ WAI064SC Waimiha School 9 School BoT EI(fdi) (zone closed Dec 04) P Other Supplies IRI001IR Irirangi Naval Station * 10 Waiouru (Defence) AE P ☺ KAK002KA Kakahi 50 Kakahi Inc Water Soc. EI(di) P ☺ KAR013KA Karioi Pulp Mill * 130 Winstone Pulp Int. Ltd I(fdi) P ☺ RAN013RA Rangataua * 25 ex-NZ Railway N (zone closed Mar 04) P RAU001RA Raurimu 40 Community committee Complied P ☺ TAN008TA Tangiwai Sawmill * 100 Winstone Pulp Int. I(fdi) P TUR003TU Turoa Skifield * 10 Ruapehu Alpine Lifts N P WAI002WA Waiouru Township * 2,800 Serco-Waiouru(Defence) I(fd) P ☺ WHA015WV Whakapapa Village 200 DOC N P

* Supplies administered by the MidCentral (Wanganui) DHB Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies TAU003TA Taumarunui (TP00067) 5,200 Fluoride I TAU003TA Taumarunui 5,200 Lead AC TAU003TA Taumarunui 5,200 Trichloroacetaldehyde Complied OHA001OH Ohakune Township 1,500 Nickel AC OHA001OH Ohakune Township 1,500 Cadmium Complied RAE001RA Raetihi Township 1,300 Copper Complied RAE001RA Raetihi Township 1,300 Lead AC RAE001RA Raetihi Township 1,300 Trichloroacetaldehyde Complied RAE001RA Raetihi Township 1,300 Dichloroacetic acid Complied RAE001RA Raetihi Township 1,300 Trichloroacetic acid Complied RAE001RA Raetihi Township 1,300 MAV sum ratio for HAAs Complied WAI002WA Waiouru Township 2,800 Trichloroacetaldehyde Complied ☺ WAI002WA Waiouru Township 2,800 Dichloroacetic acid Complied WAI002WA Waiouru Township 2,800 Trichloroacetic acid Complied WAI002WA Waiouru Township 2,800 MAV sum ratio for HAAs AC

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. South Waikato District (page 26 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ARA003AR Arapuni 300 Local Authority EI(d) P ATH002AT Athol 50 Local Authority I(d) P LIC001LI Lichfield 50 Local Authority I(d) P PUT001PU Putaruru 4,500 Local Authority E P ☺ TEW007SC Te Waotu School 100 Local Authority E P TIR001TI Tirau 700 Local Authority I(d) P ☺ TOK001TO Tokoroa 16,000 Local Authority I(di) P School Supplies LIC002SC Lichfield School 100 School BoT I(fi) P OKO003SC Okoroire School 39 School BoT I(fdi) P Other Supplies ATH002KI Kinleith Pulp & Paper 700 Kinleith Pulp & Paper I(fi) P LIC003LI Lichfield NZMP 150 NZMP Lichfield Complied P ☺ TIR006TI Tirau NZMP 64 NZMP Tirau Complied P WHA054WH Whakamaru Christian Camp 40 N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies TOK001TO Tokoroa (TP00038) 16,000 Fluoride L ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Thames-Coromandel District (page 27 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies COR001CO Coromandel 1,500 Local Authority Complied HAH001HA Hahei, Harsant Subdivision 66 Local Authority E P HIK002HI Hikutaia 200 Local Authority N P MAT009MA Matatoki 150 Local Authority N P MAT010MA Matarangi 121 Local Authority I(f) P ONE002ON Onemana 170 Local Authority Complied (f) P ☺ PAU001PA Pauanui 1,020 Local Authority EI(fdi) P PAU001TA Tangitarori Lane 50 Local Authority EI(fdi) PUR003PU Puriri 150 Local Authority N P TAI002TA Tairua 1,700 Local Authority EI(i) TEP007AP Te Puru - Aputa Ave 200 Local Authority N P THA001TK Thames - Kopu 6,850 Local Authority I(fi) WHA003WH Whangamata 4,500 Local Authority From Jul P ☺ WHI001WH Whitianga 3,400 Local Authority Complied ☺ School Supplies COL008SC Colville School 40 Colville Water Trust N P COR002SC Coroglen School 50 School BoT I(fdi) P HIK003SC Hikuai School 100 School BoT EI(fdi) P ☺ KEN003SC Kennedy Bay School 35 School BoT N P MAN039SC Manaia School 40 School BoT I(fdi) P ☺ OPO003SC Opoutere School 97 School BoT I(fdi) P ☺ TAP006SC Tapu School 20 School BoT I(fdi) P ☺ TEP018SC Te Puru School 196 School BoT I(fdi) P TER008SC Te Rerenga School 69 Te Rerenga EI(fdi) P ☺ WHE002SC Whenuakite School 135 School BoT I(fdi) P ☺ Other Supplies COL008CO Colville Town 80 Colville Water Trust EI(fdi) P ☺ KOP003KO Kopu Sawmill 220 Carter Holt Harvey N P TEP006TE Te Puru - Unarei 100 Te Puru Community N P TER008TE Te Rerenga 50 Te Rerenga N P THO002TH Thornton Bay 100 Thornton Bay Community AEI(fdi) P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies COR001CO Coromandel 1,500 Lead ACI TAI002TA Tairua 1,700 Lead ACI TAI002TA Tairua 1,700 MAV sum ratio for THMs I TAI002TA Tairua 1,700 MAV sum ratio for HAAs I WHI001WH Whitianga 3,400 Lead Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waikato District (page 28 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies EUR001EU Eureka 220 Local Authority Complied ☺ GOR003GO Gordonton 392 Local Authority Complied ☺ HOR001CO Horotiu - Council Distribution 275 Local Authority Complied ☺ HUN002HU Huntly 7,310 Local Authority Complied ☺ HUN002RO Rotongaro 100 Local Authority Complied ☺ MAT003MA Matangi 500 Local Authority Complied ☺ NEW001NE Newstead 800 Local Authority Complied ☺ NGA002NG Ngaruawahia 5,420 Local Authority Complied ☺ RAG001RA Raglan 3,330 Local Authority EI(fi) P ROT008RO Rototuna 100 Local Authority Complied ☺ TAM001TA Tamahere 500 Local Authority Complied ☺ TAU002HO Hopu Hopu 200 Local Authority Complied ☺ TAU002TA Taupiri 460 Local Authority Complied ☺ TEA009TE Te Akau 45 Local Authority I(fdi) P ☺ TEK001TR Te Kauwhata / Rangiriri 1,300 Local Authority AEI(fdi) TEK001WH Whangamarino Rural / Meremere 400 Local Authority Complied ☺ School Supplies GLE015SC Glen Massey School 85 School BoT I(fdi) P HOR005SC Horsham Downs School and Hall 170 School BoT I(fdi) P MAR018SC Maramarua School 70 School BoT I(fdi) P OHI004SC Ohinewai School 84 School BoT I(fdi) P ORI001SC Orini Combined School 120 School BoT I(fdi) P ☺ PUK023SC Pukemiro School 26 School BoT EI(fdi) P ☺ ROT010SC Rotokauri School 194 School BoT N P RUA009SC Ruawaro Combined School 75 Board of Trustees EI(fdi) P ☺ TAU022SC Tauwhare School 87 School BoT I(fdi) P TEA010SC Te Akau School 58 School BoT I(fdi) P TEK017SC Te Kura O Ngati Haua School 45 School BoT AEI(di) P TEK020SC Te Kowhai School 190 School BoT N P TEM010SC Te Mata School 60 School BoT N P TEU001SC Te Uku School 150 School BoT N P WAE002SC Waerenga School 80 School BoT I(fdi) P WAI150SC Waiterimu School 20 School BoT I(fdi) P ☺ WAI151SC Waingaro School 26 School BoT AEI(fdi) P WAI155SC Waitetuna School 40 School BoT I(fdi) P WHA046SC Whatawhata School 65 School BoT AEI(fdi) P WHI008SC Whitikahu School 103 School BoT I(fdi) P Other Supplies AFF002HO AFFCO Meatworks, Horotiu 270 Affco Meatworks Complied ☺ LAK019LA Lakewood Lodge 30 Lakewood Lodge EI(fdi) P ☺ WAI160WA Waingaro Hot Springs 200 I(fdi) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waikato District (page 29 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies EUR001EU Eureka (TP00066) 220 Fluoride Complied ☺ GOR003GO Gordonton (TP00066) 392 Fluoride Complied ☺ MAT003MA Matangi (TP00066) 500 Fluoride Complied ☺ NEW001NE Newstead (TP00066) 800 Fluoride Complied ☺ NEW001NE Newstead 800 Lead Complied ☺ ROT008RO Rototuna (TP00066) 100 Fluoride Complied ☺ TAM001TA Tamahere (TP00066) 500 Fluoride Complied ☺ TEK001TR Te Kauwhata / Rangiriri (TP00127) 1,300 Chlorate N TEK001TR Te Kauwhata / Rangiriri 1,300 Arsenic I TEK001TR Te Kauwhata / Rangiriri 1,300 Trichloroacetaldehyde ACI TEK001TR Te Kauwhata / Rangiriri 1,300 Dichloroacetic acid I TEK001TR Te Kauwhata / Rangiriri 1,300 Trichloroacetic acid I TEK001TR Te Kauwhata / Rangiriri 1,300 MAV sum ratio for HAAs I TEK001WH Whangamarino Rural / Meremere (TP00127) 400 Chlorate N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waipa District (page 30 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies CAM001CA Cambridge 13,503 Local Authority I(di) P KIH001KI Kihikihi 2,000 Local Authority EI(di) P PUK001OH Ohaupo 468 Local Authority I(fdi) P PUK001PU Pukerimu Rural 2,810 Local Authority I(d) P ☺ TEA001PI Pirongia 1,131 Local Authority I(di) P ☺ TEA001TE Te Awamutu Township 9,165 Local Authority I(d) P School Supplies GOO003SC Goodwood School 245 School BoT Complied (d) P HAU007SC Hautapu School 200 School BoT Complied (d) P ☺ HOR006SC Hora Hora School 92 School BoT EI(d) P ☺ KAR011SC Karapiro School 103 School BoT Complied (d) P ☺ NGA024SC Ngahinapouri School 176 School BoT I(fdi) P PAR014SC Parawera School 54 School BoT I(fdi) P ☺ PAT006SC Paterangi School 110 School BoT I(fdi) P ☺ POK002SC Pokuru School 165 School BoT I(fdi) P PUA001SC Puahue School 75 School BoT I(fdi) P PUK022SC Pukeatua School 140 School BoT AEI(fdi) P RUK001SC Rukahia School 81 School BoT AEI(fdi) P TEM009SC Te Miro School 35 School BoT E P ☺ TEP016SC Te Pahu School 150 School BoT AEI(fdi) P WHA041SC Wharepapa South School 45 School BoT I(fdi) P WHI009SC Whitehall School 37 School BoT Complied (d) P ☺ Other Supplies HAM006IT East Side Terminal 110 Waikato Regional Airport Complied P ☺ HAM006WE West Side Aviation Area 110 Waikato Regional Airport Complied P ☺ PAC002PA Pacific Aerospace Corp Hamiltn 118 N P TOK006TH Tokanui 250 Off of Treaty Settlement N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies CAM001CA Cambridge 13,503 Arsenic I KIH001KI Kihikihi 2,000 Lead I PUK001PU Pukerimu Rural 2,810 Arsenic I TEA001PI Pirongia 1,131 Lead I TEA001TE Te Awamutu Township 9,165 Lead C TEA001TE Te Awamutu Township 9,165 Trichloroacetaldehyde CI ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waitomo District (page 31 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BEN002BE Benneydale 280 Local Authority E P MOK002MO Mokau, Waitomo 200 Local Authority EI(di) P PIO001PI Piopio 500 Local Authority Complied P TEK003TE Te Kuiti 4,612 Local Authority Complied P ☺ School Supplies ARI001SC Aria School 66 School BoT I(fdi) P HAN005SC Hangataki School 29 School BoT EI(d) P KIN005SC Kinohaku School 16 School BoT I(fdi) P MAH007SC Mahoenui School 12 School BoT AEI(fdi) P MAI007SC Maipu School 19 School BoT I(fdi) P OPA004SC Oparure School 30 School BoT N P PIR003SC Piripiri School 11 School BoT N P RAN022SC Rangitoto School 30 School BoT N P Other Supplies PUR002PU Pureora Village 30 DOC N P TAH002TA Taharoa Village 150 BHP-NZ Steel Mining Ltd N P WAI012WC Waitomo Caves 500 Waitomo Caves Ltd E P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies TEK003TE Te Kuiti 4,612 Lead From Mar ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Tauranga City (page 32 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies TAU004MP Mt Maunganui - Papamoa 45,000 Local Authority From Oct ☺ TAU004TB Tauranga - Bethlehem 60,000 Local Authority From Oct ☺ School Supplies (No school supplies are included on the Register) Other Supplies APA001AP Apata Centrepac 100 N (now on TAU004) P BOS001EA Boscabel Stage 1 120 Boscabel Residents Assoc N P BOS001WE Boscabel Stage 2 120 Boscabel Residents Assoc N P FAI004FA Faith Bible College 60 N P TAH003TA Tahuwhakatiki Marae 150 Marae Committee N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies (No supplies have P2 monitoring requirements)

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Western Bay of Plenty District (page 33 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies TEP002BU Te Puke (Bush) 100 Local Authority Complied (d) P TEP002MA Maketu 3,600 Local Authority Complied P TEP002TP Te Puke 6,612 Local Authority Complied P WES011AT Athenree 1,515 Local Authority Complied WES011KA Katikati 5,205 Local Authority E P WES011TK Tanners Point 150 Local Authority Complied P ☺ WES011WB Waihi Beach 2,100 Local Authority Complied WES013WE Westbay Central 6,700 Local Authority From Oct P School Supplies KAI018SC Kaimai School 77 School BoT N P MAT020SC Matakana Island School 40 School BoT N P ORO004SC Oropi School 190 School BoT I(fdi) P ☺ OTA007SC Otamarakau School 90 School BoT N P PON002SC Pongakawa School 240 School BoT N P PUK008SC Pukehina School 80 School BoT N P PYE001SC Pyes Pa School 150 School BoT N P RAN009SC Rangiuru School 100 School BoT N P RAT002SC Rataroa Lodge-College Camp 30 School BoT N P TER001SC Te Ranga School 65 School BoT N P WHA023SC Whakamarama School 76 School BoT N P Other Supplies AFF001AF AFFCO Freezing Works-Te Puke 450 AFFCo Complied AON001AO Aongatete Lodge 92 Kaimai Outdoor Centre N P 1 ATH001AT Athenree, Flare Tearooms 40 Flare Tearooms N P BEL001BE Belk Rd Water Scheme 25 Belk Rd Water Scheme N P ELE001EL Eleos Packhouse & Home 108 Eleos Ltd N P KAI025KA Kaimai Spring 100 Community group N P KAI034KA Kaimai Woolshed 30 Kaimai Woolshed N P KAT001KA Katiphil Factory 2 Katiphil Food Factory N P MAT017MA Matakana Mill 40 Matakana Mill N P MAT018MA Matakana Marae, Rangihouhine 50 Marae Committee N P MAT019MA Matakana Island Rec. Club 100 Recreation Club N P NGA009NG Ngatuhoa Lodge 60 N P NGA015NG Ngamuwahine Outdoor Centre 70 Ngamuwahine Camp Trust N P OPU002OP Opureora Marae 40 Marae Committee N P OTA008OT Otawa Lodge 30 Girl Guides Assn. N P OTE004OT O Te Ora Camp 35 Otumoetai College N P RAN015RA Rangiwaea Marae 20 Marae Committee N P SAP001SA Sapphire Springs Camp 400 Holiday Park N P TAU021TA Tautau Supply 70 Tautau Irrigat.Water Grp N P TEP002EA Te Puke Eastern Districts 1,887 Complied P TEP002GI Gibralter Water Supply 60 Gibralter Water Scheme N P TEP002NG Ngaupuri Scheme 60 N P TEP005TE Te Puke Golf Course 150 Golf Club N P WAI105WA Waitaia Lodge 20 Waitaia Lodge Committee N P WHA056WH Whakamarama Kindergarten 35 Kindergarten N P WHI003WH Whillougby Rd. Katikati 30 N P

1 now called Flip'n'Bear and Pancake Den

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Western Bay of Plenty District (page 34 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies TEP002MA Maketu 3,600 Lead C ☺ TEP002MA Maketu 3,600 Trichloroacetaldehyde AC TEP002MA Maketu 3,600 MAV sum ratio for HAAs AC TEP002TP Te Puke 6,612 Lead C ☺ TEP002TP Te Puke 6,612 Trichloroacetaldehyde Complied TEP002TP Te Puke 6,612 Dichloroacetic acid Complied TEP002TP Te Puke 6,612 MAV sum ratio for HAAs AC WES011AT Athenree 1,515 Nickel C ☺ WES011KA Katikati 5,205 Nickel C ☺ WES011KA Katikati 5,205 Trichloroacetaldehyde Complied WES011KA Katikati 5,205 Dichloroacetic acid Complied WES011KA Katikati 5,205 MAV sum ratio for HAAs AC WES011WB Waihi Beach 2,100 Lead C ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Rotorua District (page 35 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies HAM003HA Hamurana 800 Local Authority Complied P ☺ KAH001KA Kaharoa 750 Local Authority E P MAM001MA Mamaku Township 670 Local Authority Complied P MIH001MI Mihi 80 Local Authority E P NGO001NG Ngongotaha Township 4,350 Local Authority Complied P REP001RE Reporoa 980 Local Authority Complied P ROT001OK Okareka 500 Local Authority AE P ROT001RE Rotorua Eastern Suburbs 9,300 Local Authority AE P ROT002RO Rotoma 340 Local Authority Complied P ROT003RO Rotorua City 42,500 Local Authority I(i) P ROT004RO Rotoiti 880 Local Authority Complied P ☺ WAI030WA Waikite Hotpool Complex 80 Local Authority I(fdi) P ☺ School Supplies ATI002SC Atiamuri Playcentre 30 Playcentre N P HOR002SC Horohoro School 52 School BoT N P ☺ NGA007SC Ngakuru School 90 School BoT N P ☺ RER001SC Rerewhakaaitu School 120 School BoT I(fdi) P ☺ UPP003SC Upper Atiamuri School 52 School BoT N P WAI029WA Waiotapu School Camp 50 School Camp Trust N P WAI056SC Waikite Valley School 98 School BoT I(d) P ☺ WHA022SC Whangamarino School 130 School BoT AEI(fdi) P Other Supplies EAS001ER East Rd Community 30 East Rd Community N P KAI009KA Kaingaroa 700 Forest Village Trust N P KIW001KR Kiwi Ranch - Tikitere 20 Sport and Spa Ltd. N P OKA006OK Okataina Ed.& Rec.Trust Camp 95 Trust N P OKA007OK Okawa Bay Resort 200 Okawa Bay Resort AEI(d) P PAR010PA Paradise Valley 90 Paradise Valley Springs I(d) P ☺ RAI001RA Rainbow Mountain Sawmill 151 Tasman Lumber N P TAR007TA Tarawera Community Supply 100 Tarawera Comm. Board N P TEW003TE Te Wairoa Buried Village 200 Te Wairoa Village N P TUM001TU Tumunui Complex 100 Tamaki Maori Village N P WAI059WA Waiotapu Forestry Headquarters 60 Fletcher Challenge (For) I(fdi) P WAI074WA Waipa Sawmill 300 Fletcher Challenge (For) I(d) P WAI079WA Waimangu Volcanic Valley 200 DOC AEI(fdi) P WAI125WA Waiotapu Thermal Wonderland 100 Waiotapu Wonderland I(d) P ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Rotorua District (page 36 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HAM003HA Hamurana 800 Aggressiveness N KAH001KA Kaharoa 750 Aggressiveness N KAI009KA Kaingaroa 700 Nickel N KAI009KA Kaingaroa 700 Copper N KAI009KA Kaingaroa 700 Cadmium N KAI009KA Kaingaroa 700 Lead N MAM001MA Mamaku Township 670 Nickel I ☺ MAM001MA Mamaku Township 670 Copper I ☺ MAM001MA Mamaku Township 670 Arsenic I MAM001MA Mamaku Township 670 Cadmium I ☺ MAM001MA Mamaku Township 670 Antimony I ☺ MAM001MA Mamaku Township 670 Aggressiveness N NGO001NG Ngongotaha Township 4,350 Nickel I ☺ NGO001NG Ngongotaha Township 4,350 Aggressiveness N REP001RE Reporoa 980 Aggressiveness N ROT001RE Rotorua Eastern Suburbs 9,300 Nickel I ☺ ROT001RE Rotorua Eastern Suburbs 9,300 Arsenic I ☺ ROT001RE Rotorua Eastern Suburbs 9,300 Aggressiveness N ROT003RO Rotorua City 42,500 Nickel I ☺ ROT003RO Rotorua City 42,500 Arsenic I ROT003RO Rotorua City 42,500 Aggressiveness N ROT004RO Rotoiti 880 Nickel I ☺ ROT004RO Rotoiti 880 Arsenic I ☺ ROT004RO Rotoiti 880 Lead ACI ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Taupo District (page 37 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ACA001AC Acacia Bay 2,063 Local Authority I(i) P ACA001MA Mapara Road Rural 312 Local Authority Complied P ATI001AV Atiamuri Village 120 Local Authority Complied P BON001BO Bonshaw Park 180 Local Authority Complied P CEN001CD Centennial Drive 200 Local Authority E P FRE004FR Frethy Road Boat Club 25 Local Authority N P HAT001HV Hatepe Village 333 Local Authority Complied P KIN001KI Kinloch Town 450 Local Authority Complied P KIN001WH Whakaroa 91 Local Authority Complied P MAN002MA Mangakino 1,540 Local Authority Complied P MOT002MO Motuoapa 1,404 Local Authority Complied P OMO001OM Omori / Kuratau 2,704 Local Authority I(i) P OMO001PU Pukawa 800 Local Authority Complied P RIV003RI River Rd Reporoa 350 Local Authority Complied P TAU001TC Taupo Central & West 9,360 Local Authority Complied P TAU009TS Taupo South 5,000 Local Authority Complied P TIR002TI Tirohanga 220 Local Authority Complied P TUR001TO Tokaanu 582 Local Authority Complied P TUR001TU Turangi 5,429 Local Authority I(f) P WAI041WA Waitahanui 145 Local Authority Complied P WAI042WA Waihaha 120 Local Authority Complied P WHA009WH Whakamoenga Point 125 Local Authority Complied P WHA010WH Whareroa 437 Local Authority Complied P WHA011WH Whakamaru 180 Local Authority Complied P School Supplies KUR002SC Kuratau Primary School 60 School BoT Complied P MAR016SC Marotiri School 120 School BoT N P MOK003SC Mokai Primary School 35 School BoT N P RAN016SC Rangitaiki Primary School 60 School BoT I(fd) P STP004SC St Pauls Tihoi Venture School 100 School BoT N P TAU012SC Tauranga/Taupo School 95 School BoT N (school closed) P WAI075SC Waitahanui Primary School 60 School BoT I(fdi) P Other Supplies ARA002AR Aratiatia Mighty River Power 10 Mighty River Power N P BRA002BR Braxmere Lodge 80 Braxmere Lodge N P GRE009GR Great Lake Holiday Park 342 N P HAU005HA Hautu Prison 200 Corrections NZ I(d) P IWI001IW Iwitahi Camp 100 Iwitahi Camp Board N P LAK014LA Lake Taupo M.Inn,Lakeside Mot. 24 Lake Taupo M.Inn N P LAK015LA Lake Taupo Christian Camp 25 Lake Taupo Camp N P MAO001MA Maori Youth Christian Camp 50 N P MOT010MO Motutere Camping Ground 10 Leased from Council N P MOT017MO Motuoapa Motor Camp 20 Motuoapa Motor Camp N P MOT018MO Motuoapa Lodge 40 Motuoapa Lodge N P MOT020MO Motuoapa Fishing Club 25 Motuoapa Fishing Club N P OHA003OH Ohaaki Contact Energy 25 Contact Energy N P OHA003OM Ohaaki Marae 100 Contact Energy N P OHA004OH Ohakuri Mighty River Power 5 Mighty River Power N P ORA002OK Orakei Korako 95 N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Taupo District (page 38 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change RAN004RA Rangipo Genesis Power 10 Genesis Power N P RAN014PR Rangipo Prison 200 Dept. of Corrections I(d) P SHO001SH Shoreline Body Corp. 25 Shoreline Body Corp. N P TAU018TA Taupo Moana Motel 18 Taupo Moana Motel N P TAU019TA Tauranga/Taupo Fishing Lodge 5 Tauranga/Taupo Lodge N P TOK008TO Tokaanu Genesis Power 30 Genesis Power N P WAI027WH Wairakei Resort & SH1 Dvlpmt 500 N P WAI134WA Waitahanui Lodge 25 Waitahanui Lodge N P WIN005WI Windsor Lodge and Camp Ground 90 Windsor Lodge and Camp N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies ACA001AC Acacia Bay 2,063 Arsenic AC ☺ MAN002MA Mangakino 1,540 Lead Complied MOT002MO Motuoapa 1,404 Arsenic I ☺ OMO001OM Omori / Kuratau 2,704 Arsenic AC ☺ OMO001OM Omori / Kuratau 2,704 Lead Complied ☺ OMO001PU Pukawa 800 Arsenic AC ☺ OMO001PU Pukawa 800 Lead Complied ☺ TAU001TC Taupo Central & West (TP00011) 9,360 Fluoride I TAU001TC Taupo Central & West 9,360 Arsenic AC TAU009TS Taupo South (TP00012) 5,000 Fluoride ACI TAU009TS Taupo South 5,000 Arsenic ACI TUR001TO Tokaanu (TP00004) 582 Fluoride I TUR001TO Tokaanu 582 Arsenic From Jul ☺ TUR001TO Tokaanu 582 Cadmium From Jul ☺ TUR001TO Tokaanu 582 Aggressiveness N TUR001TU Turangi (TP00004) 5,429 Fluoride I Other Supplies HAU005HA Hautu Prison (TP00004) 200 Fluoride I

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Whakatane District (page 39 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies MAT005MA Matata 800 Local Authority Complied (f) P MUR002MU Murupara 3,000 Local Authority AEI(d) P RAN007ED Edgecumbe 2,500 Local Authority Complied (d) P ☺ RAN007ON Onepu 300 Local Authority AE P RAN007TE Te Teko 600 Local Authority I(d) P ☺ RAN007TH Thornton 1,000 Local Authority Complied P ☺ RUA003RU Ruatoki 560 Local Authority Complied (f) P ☺ RUA008RU Ruatahuna Village 300 Local Authority N P TAN001TA Taneatua 1,000 Local Authority Complied (f) P ☺ WAI017WA Waimana 200 Local Authority I(d) P WHA005OH Ohope 6,000 Local Authority I(di) P WHA005WH Whakatane 15,000 Local Authority Complied (i) P ☺ School Supplies GAL002SC Galatea School 200 School BoT N P HUI003SC Huiarau Primary School 80 School BoT N P TEW002SC Te Whaiti School 50 School BoT N P WAI106SC Waiohau School 40 School BoT N P Other Supplies EDG001ED Edgecumbe Fonterra 397 Fonterra N P MIN001MI Minginui 300 Private N P MUR006MU Murphy's Camp 100 N P TEM004TE Te Mahoe 120 ECNZ EI(fdi) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies MAT005MA Matata 800 Copper I ☺ MAT005MA Matata 800 Lead ACI ☺ RAN007ED Edgecumbe 2,500 Nickel From Oct ☺ RAN007ED Edgecumbe 2,500 Copper From Oct ☺ RAN007ED Edgecumbe 2,500 Arsenic ACI ☺ RAN007ED Edgecumbe 2,500 Antimony From Oct ☺ RAN007ED Edgecumbe 2,500 Lead ACI ☺ RAN007TE Te Teko 600 Copper I ☺ RAN007TE Te Teko 600 Arsenic I ☺ RAN007TE Te Teko 600 Cadmium I ☺ RAN007TE Te Teko 600 Lead ACI ☺ RAN007TH Thornton 1,000 Nickel I ☺ RAN007TH Thornton 1,000 Arsenic ACI ☺ RAN007TH Thornton 1,000 Antimony I ☺ RAN007TH Thornton 1,000 Lead I ☺ RUA003RU Ruatoki 560 Cadmium From Oct ☺ RUA003RU Ruatoki 560 Lead From Oct ☺ TAN001TA Taneatua 1,000 Copper I ☺ TAN001TA Taneatua 1,000 Cadmium I ☺ TAN001TA Taneatua 1,000 Lead I ☺ WHA005OH Ohope (TP00323) 6,000 Fluoride Complied WHA005WH Whakatane (TP00323) 15,000 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Kawerau District (page 40 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies KAW003KA Kawerau 7,000 Local Authority AEI(fdi) P KAW003UV Upper Valley Road 1,000 Local Authority Complied P ☺ School Supplies (No school supplies are included on the Register) Other Supplies (No other supplies are included on the Register)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies KAW003KA Kawerau 7,000 Nickel N KAW003KA Kawerau 7,000 Arsenic N KAW003KA Kawerau 7,000 Lead N KAW003UV Upper Valley Road 1,000 Copper N KAW003UV Upper Valley Road 1,000 Arsenic N KAW003UV Upper Valley Road 1,000 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Opotiki District (page 41 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies OHI002OH Ohiwa 240 Local Authority E P OPO001HI Hikutaia, Opotiki 1,100 Local Authority E P ☺ OPO001OP Opotiki Town 4,000 Local Authority E P ☺ TEK004TE Te Kaha 410 Local Authority Complied P ☺ TIR004TI Tirohanga Camp 50 Local Authority N P School Supplies KUT001KU Kutarere School 50 School BoT Complied P ☺ MAR017SC Maraenui School 60 School BoT I(fdi) P MAT027SC Matahi School 40 School BoT I(f) P ☺ NUK002SC Nukuhou North School 60 School BoT AEI(f) P OMA006SC Omaio School 50 School BoT I(f) P ☺ OMA013SC Omarumutu School 140 School BoT AEI(fdi) P RAU004SC Raukokore School 40 School BoT I(fdi) P ☺ TOR001TO Torere School 30 School BoT I(fdi) P ☺ WAI107SC Waiotahe School 110 School BoT I(fdi) P Other Supplies HAW005HA Hawai Camp 100 N P ISL001MC Island View Motor Camp 100 Motor Camp N P OHI003OB Ohiwa Beach 200 Ohiwa Bch Water Sup. Inc N P OPA002OP Opape Motor Camp 100 Opape Motor Camp N P PAE004PA Paerata West 80 N P PAE005PA Paerata East 60 N P WAI108WA Waihau Bay Park 200 N P WAI141WA Waioeka 150 AEI(fdi) P WHA030WH Whangaparaoa - Opotiki 100 Complied P WHA031WH Whanarua Bay 200 Whanarua Bay WSupply Soc N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies OPO001HI Hikutaia, Opotiki 1,100 Nickel Complied OPO001OP Opotiki Town 4,000 Cadmium Complied OPO001OP Opotiki Town 4,000 Lead Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Gisborne District (page 42 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BLU002BL Blue Water Reserve Camping 10 Local Authority AEI(fdi) P GIS001GI Gisborne City 30,000 Local Authority Complied TEA006TE Te Araroa Holiday Park 10 Local Authority * AEI(fdi) P TEK002TE Te Karaka 600 Local Authority E P WHA004WH Whatatutu 200 Local Authority Complied P * Incorrectly in the Register as a LA-run supply School Supplies ETI001ET E-Tipu Kohanga Reo 20 Kohanga Reo Committee N P HAT002SC Hatea-a-rangi School 80 School BoT N P HIR002ST Hiruharama Standard Block 130 School BoT N P HIR002TA Hiruharama Tapu Te Ariki Block 50 School BoT N P KUR003SC Kura Kaupapa Nga Taonga Tuturu 50 School BoT N P KUR004SC Kura Kaupapa - Waipiro Bay 12 School BoT N P MAK003SC Makauri School 160 School BoT I(fdi) P ☺ MAK005SC Makarika School 36 School BoT EI(fdi) P MAN032SC Mangatuna School 40 School BoT N P MAT022SC Matawai School 95 School BoT EI(fdi) P MAT030SC Mata School 10 School BoT N P MOT014SC Motu School 30 School BoT EI(fdi) P ☺ MUR007SC Muriwai School 47 School BoT I(fdi) P NGA010SC Ngata Memorial College 179 School BoT I(fdi) P NGA018SC Ngatapa School 44 School BoT I(fdi) P ORM002SC Ormond School 74 School BoT I(fdi) P ☺ PAT007SC Patutahi School 38 School BoT N P PAT010PC Patutahi Play Centre 20 Play Centre Committee N P POT001SC Potaka School 20 School BoT N P RAN021SC Rangitukia School 40 School BoT N P RER002SC Rere School 32 School BoT N P TAN007TA Tangatarite Kohanga Reo 20 Kohanga Reo Committee N P TAW003TA Tawhiti Kohanga Reo 12 Kohanga Reo Committee N P TEK002SC Te Karaka Primary School 140 School BoT EI(fdi) P ☺ TEK008SC Te Kura O Manutahi (School) 180 School BoT N P TEK015SC Te Kura Kaupapa - Ngati Porou 125 School BoT N P TEP015TE Te Pahou Kohanga Reo 15 Kohanga Reo Committee N P TEW004SC Te Waha O Rerekohu School 70 School BoT N P TEW008KR Te Whanau Pani Kohanga Reo 11 Kohanga Reo Committee N P TIK003SC Tikitiki School 90 School BoT N P TIN004SC Tiniroto School 28 School BoT EI(fdi) P TOL001SC Tolaga Bay Area School 265 School BoT EI(fdi) P WAE001SC Waerenga-O-Kuri School 26 School BoT I(fdi) P WAI162WA Waihirere Te Kohanga Reo 14 Kohanga Reo Committee N P WAI088AD Waikohu College Administration 50 School BoT N P WAI088NO Waikohu College North 50 School BoT N P WAI088SO Waikohu College South 50 School BoT N P WAI089SC Wainui Beach School 200 School BoT I(fdi) P ☺ WAI127SC Waipaoa Station School 17 School BoT N P WAI128SC Waimata Valley School 36 School BoT N P WAI139PC Wainui Playcentre 25 Wainui Playcentre N P WAI149WA Waiapu Kohanga Reo 15 Kohanga Reo Committee N P WHA033SC Whangara School 52 School BoT I(fdi) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Gisborne District (page 43 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change WHA040KR Wharakahika Kohanga Reo 25 Kohanga Reo Committee N P WHA034SC Wharekahika School 42 School BoT N P WHA035SC Whakaangiangi School 59 School BoT N P WHA042KR Whakarua Kohanga Reo 30 Kohanga Reo Committee N P Other Supplies ANA002AN Anaura Bay Motor Camp 10 Anaura Bay Inc AEI(fdi) P TEK025TE Te Kura O Kawakawa Mai Tawhiti 46 N P TEP001TE Te Puia Springs Hosp & Village 350 Ngati Porou Hauora I(d) TOL002TO Tolaga Bay Motor Camp 10 Tolaga Bay Motor Camp AEI(fdi) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies GIS001GI Gisborne City (TP00174) 30,000 Fluoride Complied GIS001GI Gisborne City (TP00175) 30,000 Fluoride Complied TEK002TE Te Karaka 600 Manganese Complied ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. New Plymouth District (page 44 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ING001IN Inglewood 3,500 Local Authority Complied (i) P NEW002BE Bell Block 4,437 Local Authority Complied (i) NEW002LE Lepperton 300 Local Authority Complied NEW002NE New Plymouth 35,700 Local Authority Complied NEW002UR Urenui/Tikorangi 840 Local Authority Complied (i) NEW002WA Waitara 7,500 Local Authority Complied (i) OAK001OA Oakura 1,300 Local Authority Complied P OKA002OK Okato 600 Local Authority Complied P School Supplies AHI002SC Ahititi Primary School 37 School BoT N P EGM001SC Egmont Village School 85 School BoT AEI(fdi) P HUI002SC Huirangi Primary School 70 School BoT N P KAI031SC Kaimata Primary School 63 School BoT I(d) P ☺ KAI033SC Kaimiro School 25 School BoT N P MIM001SC Mimi Primary School 20 School BoT N P NOR010SC Norfolk Primary School 125 School BoT N P OMA010SC Omata Primary School 98 School BoT N (zone closed Dec 04) P RAT003SC Ratapiko Primary School 35 School BoT I(fdi) P SEV001SC Seventh Day Adventist School 41 School BoT I(fdi) P ☺ URU002SC Uruti Primary School 18 School BoT N P WAI100SC Waitoriki Primary School 26 School BoT N P Other Supplies EVE002EV Everett Road Christian Camp 50 Everett Rd Christian Cmp I(fdi) P HOO002HO Hookner Park Camp Ground 25 N P ING002IN Inglewood Golf Course 25 N P KAI032KA Kaitake Golf Club 50 N P MET003ME Methanex Site 200 N (zone closed Oct 04) P NOR009NO North Egmont Visitors Centre 25 DOC N P PAT009PA Patuha Farm Lodge 25 N P PUK020PU Pukeiti Lodge 25 N P TON001TO Tongaporutu 25 Communal Supply N P WAI044WM Wai-iti Motor Camp 23 Wai-iti Motor Camp N P WES012GC Westown Golf Club House 25 Westown Golf Club N P WES012GR Westown Golf Course Residence 25 Westown Golf Club N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. New Plymouth District (page 45 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies ING001IN Inglewood 3,500 Trichloroacetaldehyde Complied ING001IN Inglewood 3,500 Dichloroacetic acid Complied ING001IN Inglewood 3,500 MAV sum ratio for HAAs Complied NEW002BE Bell Block (TP00352) 4,437 Fluoride Complied ☺ NEW002BE Bell Block 4,437 Lead From Jun NEW002BE Bell Block 4,437 Trichloroacetaldehyde Complied NEW002BE Bell Block 4,437 MAV sum ratio for HAAs Complied NEW002LE Lepperton (TP00352) 300 Fluoride Complied ☺ NEW002NE New Plymouth (TP00352) 35,700 Fluoride Complied ☺ NEW002UR Urenui/Tikorangi (TP00352) 840 Fluoride Complied ☺ NEW002WA Waitara (TP00352) 7,500 Fluoride Complied ☺ NEW002WA Waitara 7,500 Nickel Complied NEW002WA Waitara 7,500 Lead Complied NEW002WA Waitara 7,500 Trichloroacetaldehyde Complied NEW002WA Waitara 7,500 MAV sum ratio for HAAs Complied OAK001OA Oakura 1,300 Nickel Complied ☺ OAK001OA Oakura 1,300 Lead Complied ☺ OAK001OA Oakura 1,300 Trichloroacetaldehyde Complied ☺ OAK001OA Oakura 1,300 MAV sum ratio for HAAs Complied ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. South Taranaki District (page 46 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies COL005PI Pihama 470 Local Authority Complied P ☺ ELT001EL Eltham 2,200 Local Authority I(i) P HAW003HA Hawera 9,500 Local Authority I(f) P HAW003NO Normanby 850 Local Authority Complied P ☺ HAW003OH Ohawe Beach 270 Local Authority I(d) P HAW003OK Okaiawa 100 Local Authority I(d) P INA001IN Inaha 490 Local Authority I(d) P OPU001OP Opunake 1,500 Local Authority EI(i) P PAT001PA Patea 1,400 Local Authority E P POP001RI Riverlea 50 Local Authority I(d) P ☺ RAH001RA Rahotu 120 Local Authority I(d) P ☺ WAI018KA Kaponga 300 Local Authority I(d) P WAI018MA Manaia 1,100 Local Authority I(i) P WAI018RU Waimate West Rural 3,100 Local Authority I(i) P WAI020WA Wairoa Beach Domain 170 Local Authority E P WAI021WA Wai-inu Beach 300 Local Authority Complied P WAV001WA Waverley 950 Local Authority Complied P ☺ School Supplies HUR004SC Hurleyville School 25 School BoT N P KAK004SC Kakaramea School 50 School BoT N P MOK005SC Mokoia School 50 School BoT N P NGA006NG Ngaere School 134 School BoT EI(fdi) P NGA014SC Ngamatapouri School 35 School BoT N P OHA011SC Ohangai School 25 School BoT I(fdi) P ☺ PUN003SC Pungarehu School 50 School BoT N (zone closed Dec 04) P RAW003SC Rawhitiroa School 25 School BoT N P WAI101SC Waitotora School 50 School BoT N P WAR004SC Warea School 55 School BoT N (zone closed Dec 04) P WHE001SC Whenuakura School 70 School BoT I(fdi) P ☺ Other Supplies ASH006AS Ashley Park Camp Ground 25 Ashley Park N P CAP001CA Cape Egmont Fishing Club 25 Cape Egmont Fishing Club N P DAI002DA Dairyland Visitor Ctr. & Cafe 25 Kiwi Dairies Ltd. N P NZM001NZ NZMP, Hawera 852 Fonterra Complied P OAO003PS Oaonui Production Station 75 Shell Todd Oil Service Complied P ☺ TEN001TE Te Ngutu Golf Club 25 Golf Club N P WAI102WA Waitotora Meat Works 170 Waitotora Meat Works I(fdi) P ☺ WAV002WA Waverley Golf Club 25 Waverley Golf Club N P WAV003WA Waverley Racing Club 50 Waverley Racing Club N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. South Taranaki District (page 47 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies ELT001EL Eltham 2,200 Nickel From Aug ☺ ELT001EL Eltham 2,200 Lead From Aug ☺ ELT001EL Eltham 2,200 MAV sum ratio for HAAs From Aug ☺ HAW003HA Hawera (TP00354) 9,500 Fluoride Complied HAW003NO Normanby (TP00354) 850 Fluoride Complied HAW003NO Normanby 850 Lead From Aug ☺ HAW003OH Ohawe Beach (TP00354) 270 Fluoride Complied HAW003OK Okaiawa (TP00354) 100 Fluoride Complied OPU001OP Opunake 1,500 Cadmium From Aug ☺ OPU001OP Opunake 1,500 Lead From Aug ☺ OPU001OP Opunake 1,500 Trichloroacetaldehyde From Aug ☺ OPU001OP Opunake 1,500 Dichloroacetic acid From Aug ☺ OPU001OP Opunake 1,500 Trichloroacetic acid N OPU001OP Opunake 1,500 MAV sum ratio for HAAs CI ☺ PAT001PA Patea 1,400 Boron From Aug ☺ PAT001PA Patea 1,400 Aggressiveness C ☺ WAI018MA Manaia 1,100 Nickel ACI ☺ WAI018MA Manaia 1,100 Lead ACI ☺ WAI018RU Waimate West Rural 3,100 Cadmium From Aug ☺ WAI018RU Waimate West Rural 3,100 Lead From Aug ☺ Other Supplies NZM001NZ NZMP, Hawera 852 Nickel N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Stratford District (page 48 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies MID001MI Midhirst 240 Local Authority Complied P STR001ST Stratford 5,400 Local Authority Complied P TOK004TO Toko 100 Local Authority Complied P School Supplies DOU002SC Douglas Primary School 22 School BoT AEI(fdi) P ☺ HUI001SC Huiakama School 31 School BoT N P MAK006SC Makahu School 16 School BoT N P MAR013SC Marco School 13 School BoT I(fdi) P MAT026SC Matau School 10 School BoT N P PEM001SC Pembroke Primary School 65 School BoT I(fdi) P STA005SC Stanley School 36 School BoT N (zone closed Dec 04) P TAH006SC Tahora School 25 School BoT I(fdi) P ☺ TOK009SC Toko Primary School 95 School BoT AEI(fdi) P Other Supplies DAW001DA Dawsons Falls Cntr & Konini Lg 25 DOC N P TEW001TE Te Wera 25 Community Water Board N P WHA053WH Whangamomona Hotel 15 N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies STR001ST Stratford (TP00347) 5,400 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Central Hawke's Bay District (page 49 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies KAI012KA Kairakau Beach 20 Local Authority EI(d) P POR003PO Porangahau Beach 30 Local Authority EI(d) P POR003PT Porangahau Township 130 Local Authority EI(d) P POU005PO Pourerere Beach Caravan Park 10 Local Authority I(d) P TAK001TA Takapau Township 570 Local Authority Complied ☺ WAI004HI High Pressure Zone, Waipukurau 3,000 Local Authority Complied P ☺ WAI004LO Low Pressure Zone, Waipukurau 666 Local Authority Complied P ☺ WAI005OT Otane Township 546 Local Authority Complied P ☺ WAI005WA Waipawa Township 1,809 Local Authority Complied P ☺ School Supplies ARG001SC Argyll East School 70 School BoT Complied (d) P ☺ ARG002PL Argyll East Hall & Playcentre 100 Argyll East Hall Society N P ELS002SC Elsthorpe School 55 School BoT I(fdi)L P ☺ FLE001SC Flemington School 73 School BoT N P MAN022SC Mangaorapa School 32 School BoT AEI(fdi) P OMA007SC Omakere School 65 School BoT I(fdi) P ONG002SC Ongaonga School 109 School BoT Complied (di) P ONG004ON Ongaonga Hall & Playcentre 40 EI(d) P OUE001SC Oueroa School 28 School BoT I(fdi) P ☺ PUK012SC Pukehou School 90 School BoT N P SHE002SC Sherwood School 65 School BoT I(fdi)L P TEA004SC Te Aute College 250 School BoT AEI(fdi) P TIK002SC Tikokino School 77 School BoT N P WAL002SC Wallingford School 9 School BoT N (zone now closed) P Other Supplies BLA007BL Blackhead Beach Camping Ground 20 Camping Ground Committee AEI(fdi) P CAM006CA Camp Wakarara 3 N P FAR001FA Farm Road 160 Farm Rd Water Supply Ltd I(fdi) P ☺ ONG003ON Ongaonga General Store 27 I(fdi) P ☺ PUK025PU Pukeora Estate 35 N P RIC008RI Richmond Takapau 600 Richmond Ltd L P ☺ SAN009SA Sandford Arms Tavern, Ongaonga 20 Sandford Arms Tavern Ltd I(fdi) P ☺ SME001SM Smedley Station 40 Public Trustee I(fdi) P ☺ TIK005TI Tikokino Hotel & Camp Ground 30 I(fdi) P ☺ WAZ001WA Wazz Macs Camp 120 N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies TAK001TA Takapau Township 570 Lead Complied ☺ WAI004HI High Pressure Zone, Waipukurau (TP00097) 3,000 Fluoride Complied WAI004HI High Pressure Zone, Waipukurau 3,000 Copper Complied WAI004HI High Pressure Zone, Waipukurau 3,000 Lead C ☺ WAI004LO Low Pressure Zone, Waipukurau (TP00097) 666 Fluoride Complied WAI005WA Waipawa Township 1,809 Lead Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Chatham Islands (page 50 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies WAI158WA Waitangi, Chatham Is. 120 Local Authority N P School Supplies PIT001SC Pitt Island School 9 School BoT N P TEO001SC Te One School (Chatham Is.) 80 School BoT AEI(fdi) P Other Supplies KAI041KA Kaingaroa, Chatham Is. 60 Chatham Processing Ltd Complied P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies (No supplies have P2 monitoring requirements)

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Hastings District (page 51 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies CLI001AL Allen Lane/Ferry Rd, Clive 198 Local Authority Complied CLI001VA Valerie St/Tuckers Lane, Clive 362 Local Authority Complied HAS001EA Hastings East 13,562 Local Authority Complied HAS001FL Flaxmere 11,324 Local Authority Complied P HAS001WE Hastings West & Central 20,829 Local Authority Complied P ☺ HAU002HA Haumoana / Te Awanga 1,900 Local Authority Complied ☺ HAV001HA Havelock North 11,623 Local Authority Complied OMA008OM Omahu 126 Local Authority Complied PAK008PA Paki Paki 200 Local Authority Complied WAI007WA Waimarama 260 Local Authority Complied P WAI087WA Waipatiki Beach 6 Local Authority Complied P WAI135WA Waipatu 30 Local Authority Complied WHA029WH Whakatu 337 Local Authority Complied ☺ WHI007WH Whirinaki, Hawkes Bay 750 Local Authority Complied P School Supplies BRI003SC Bridge Pa School 60 School BoT I(fdi) P CHU001CH Chuckles Childcare Centre 29 Childcare centre N P CLI003SC Clive School 220 School BoT I(fdi) P CRO002SC Crownthorpe School 59 School BoT N P HAU004SC Haumoana School 217 School BoT N P KER002SC Kereru School 46 School BoT N P MAN033SC Mangateretere School 120 School BoT I(fdi) P ☺ MAR010SC Maraekakaho School 135 School BoT N P OMA009SC Omahu School 50 School BoT N P OTA013SC Otamauri Playcentre 10 Playcentre Committee N P PAK007SC Pakowhai School 50 School BoT N P PAT008SC Patoka Sch & Rural Kindergtn 50 School BoT N P POU003SC Poukawa School 60 School BoT I(fdi) P PUK003PU Puketapu School 212 School BoT N P PUK013SC Pukehamoamoa School 35 School BoT N P PUK014SC Puketitiri School 8 School BoT N P PUT003SC Putorino School 21 School BoT N P RAU003SC Raukawa School 30 School BoT I(fdi) P ☺ RIS001SC Rissington School 23 School BoT N P SHE003SC Sherenden School 35 School BoT I(fdi) P TAR003SC Tareha School 40 School BoT I(fdi) P ☺ TEH005SC Te Hauke School 32 School BoT N P TEH006SC Te Haroto School 8 School BoT N P TEK016SC Te Kohanga Reo O Whakatu 23 Kohanga Reo Committee N P TKK001SC TKKM O NK Ki Heretaunga 80 School BoT N (zone closed Dec 04) P TUT002SC Tutira School 63 School BoT N P TWY001SC Twyford School 190 School BoT N P Other Supplies ARA011AR Arataki Holiday Park 50 AEI(fdi) P BRE002BR Breckenridge Subdivision 52 N P BRO011BR Brownrigg Agri. Home Block 18 Brownrigg Agri. Ltd I(fdi) P CAM002CA Camp David 25 Complied P ☺ CAM007CA Camp Wareham 8 N P CAP002CA Cape Kidnappers Golf Course 30 I(fdi) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Hastings District (page 52 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change CHR003CH Christian Youth Camp 10 Presbyterian Church N P CHU002RI Church at Riverbend 20 HB Redemption Trust N P CLE003CL Clearview Estate Winery 40 N P CLI005CL Clifton Motor Camp 50 Motor Camp I(fdi) P CLI006CL Clive Motor Camp 62 I(fdi) P CLI007CL Clifton Bay Café 71 I(fdi) P CLI008CL Clive Scouring Company 44 Cilfton Wool Scour Ltd Complied (d) P ESK002ES Eskdale Motor Camp 42 Eskdale Enterprises N P ESK003ES Eskdale Water Company 30 Eskdale Water Company I(fdi) P ☺ GOL002GO Golflands 30 N P GUT001GU Guthrie Smith Centre 5 Private Camp N P HAS002HA Hastings Golf Club 150 Hastings Golf Club I(fdi) P ☺ HAS003HA Hastings Aerodrome 40 Hawkes Bay & East Coast N P HAW006HO Hawkes Bay Hospital 2,000 Hawkes Bay DHB Complied P HAW007HA Hawkes Bay Golf Club 50 Hawkes Bay Golf Club N P HAW008HA Hawkes Bay Prison 718 Dept. of Corrections N P HEI001HE Heinz Watties Tomoana 200 Heinz Watties Ltd Complied P HOH002HO Hohepa Homes 84 Hohepa Homes Trust N P KEM001KE Kemblefield Estate Winery 10 Terraceview Vineyards N P LAK010LA Lake Tutira Rest Area 4 Hawkes Bay Reg. Council I(fdi) P ☺ MAN038MA Mangapapa Lodge 20 N P MOK007MO Mokopeka Riverside Restaurant 42 N P MOL001MO Mole and Chicken Restaurant 85 N P NAP002NA Napier Golf Club 120 N P OMA014OM Omatua Girl Guide Camp 10 Guides Hawkes Bay I(fdi) P ORM003OR Ormile Lodge 10 Ormile Lodge Trust N P RIC006RI Richmond Pacific Beef, Whakatu 680 Richmond Ltd N P RIV014RI Riverlands Outback Adventures 50 N P SIL001SI Sileni Estates Winery 60 Sileni Estate Ltd N P STO002ST Stoney Creek Ranch 20 Stoney Creek Ranch I(fdi) P TEA012TE Te Awa Farm Winery 45 Kaiwhenua Farms (HB) Ltd I(fdi) P TEP009TE Te Pohue 113 N P TRI001TR Trinity Hill Winery 12 Trinity Hill Ltd I(fdi) P ☺ VER001VE Vertex Pacific 50 Vertex Pacific Ltd N P WAI152WA Waikoau 55 Waikoau Utility Comm. N P WAI159WA Waipatiki Beach Farm Park 30 N P WHA049WH Whakatu Coldstores 40 Whakatu Cold Stores Ltd N P WHA050WH Whakatu Ind Park Pet Food 30 Whakatu Coldstores Ltd N P WHA051WH Whakatu Ind Park Main 50 Whakatu Coldstores Ltd N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Hastings District (page 53 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HAS001EA Hastings East (TP00115) 13,562 Fluoride Complied HAS001EA Hastings East (TP00118) 13,562 Fluoride Complied HAS001FL Flaxmere (TP00116) 11,324 Fluoride Complied HAS001FL Flaxmere (TP01278) 11,324 Fluoride Complied HAS001WE Hastings West & Central (TP00115) 20,829 Fluoride Complied HAS001WE Hastings West & Central (TP00116) 20,829 Fluoride Complied HAU002HA Haumoana / Te Awanga 1,900 Nickel ACI ☺ HAV001HA Havelock North (TP00115) 11,623 Fluoride Complied HAV001HA Havelock North (TP00118) 11,623 Fluoride Complied HAV001HA Havelock North 11,623 Copper AC HAV001HA Havelock North 11,623 Lead AC WHI007WH Whirinaki, Hawkes Bay 750 Nickel Complied ☺ WHI007WH Whirinaki, Hawkes Bay 750 Lead AC Other Supplies HAW006HO Hawkes Bay Hospital 2,000 Aggressiveness Complied HAW008HA Hawkes Bay Prison (TP00116) 718 Fluoride Complied HAW008HA Hawkes Bay Prison (TP01278) 718 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Napier City (page 54 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BAY001BA Bayview Township 1,280 Local Authority Complied NAP001NA Napier City 25,800 Local Authority Complied NAP001TA Taradale 22,100 Local Authority Complied School Supplies ESK001SC Eskdale School 170 School BoT I(fdi) P HOH001SC Hohepa Homes School 62 Hohepa Homes Trust N P MEE001SC Meeanee School 110 School BoT I(fdi) P ☺ Other Supplies MAR021MA Maraenui Golf Culb 1,000 Maraenui Golf Club (Inc) N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies NAP001TA Taradale 22,100 Aggressiveness to be resolved Complied ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Wairoa District (page 55 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies MAH005MA Mahanga Beach 30 Local Authority Complied (d) P TUA005TU Tuai 300 Local Authority Complied (d) P WAI006FR Frasertown 350 Local Authority Complied P WAI006WA Wairoa 4,300 Local Authority Complied P School Supplies KOK002SC Kokako School 45 School BoT N P KOT001SC Kotemaori School 25 School BoT AEI(fdi) P MOH001SC Mohaka School 54 School BoT N P NUH001SC Nuhaka School 136 School BoT N P OHU002SC Ohuka School 12 School BoT I(fdi) P OPO002SC Opoutama School 20 School BoT N (zone closed Dec 04) P PUT004SC Putere School 17 School BoT N P RAU005SC Raupunga School 27 School BoT N P RUA006SC Ruakituri School 30 School BoT I(fdi) P ☺ TEM005SC Te Mahia School 80 School BoT I(fdi) P ☺ TER002SC Te Reinga School 15 School BoT N P TUK002SC Tukemokihi School 10 School BoT N P TUR004SC Turiroa School 88 School BoT N (zone closed Dec 04) P WHA028SC Whakaki School 34 School BoT N (zone closed 2003) P Other Supplies ANI001AN Aniwaniwa 100 DOC N P ANI001WA Waikaremoana Motor Camp 30 DOC N P BIG001BI Big Bush Holiday Park 10 N P BLU003BL Blue Bay Motor Camp 10 Blue Bay Motor Camp N P KAI043KA Kaitawa Village 2 Camp Kaitawa Trust N P MAH006MA Mahia Beachfront Motels & Camp 10 Mahia Beachfront Motels N P MAH012MA Mahia Golf Club 25 Mahia Golf Club N P MOR004MO Morere Hot Springs 20 N P MOR005MO Morere Tearooms & Camp Ground 10 N P RAU006RA Raupunga 250 Ngati Pahauwera Inc N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies (No supplies have P2 monitoring requirements)

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Horowhenua District (page 56 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies FOX002FO Foxton 2,700 Local Authority Complied P FOX003FO Foxton Beach 1,600 Local Authority Complied P LEV001LE Levin 20,000 Local Authority Complied P SHA001SH Shannon 1,500 Local Authority Complied P TOK002TO Tokomaru 545 Local Authority Complied P School Supplies KOP002SC Koputaroa School 160 School BoT N P MAN015SC Manakau School 55 School BoT I(fdi) P MUH001ME Muhunoa East School 20 School BoT N P OPI001SC Opiki School 95 School BoT N P POR006SC Poroutawhao School 120 School BoT N P Other Supplies HIM002HI Himatangi Estate 70 Himatangi Estate N P KER004SC Kereru Childrens Learning Cent 61 Learning Centre Owners N P RIC007RI Richmond Ltd Shannon 120 Richmond Ltd N P TAT003TA Tatum Park 106 Tatum Park N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies FOX002FO Foxton 2,700 Arsenic Complied FOX002FO Foxton 2,700 Trichloroacetaldehyde Complied FOX002FO Foxton 2,700 MAV sum ratio for THMs Complied FOX002FO Foxton 2,700 MAV sum ratio for HAAs Complied ☺ FOX003FO Foxton Beach 1,600 Nickel Complied FOX003FO Foxton Beach 1,600 Trichloroacetaldehyde Complied FOX003FO Foxton Beach 1,600 MAV sum ratio for THMs Complied FOX003FO Foxton Beach 1,600 MAV sum ratio for HAAs Complied SHA001SH Shannon 1,500 MAV sum ratio for HAAs AC TOK002TO Tokomaru 545 Nickel I TOK002TO Tokomaru 545 Cadmium I TOK002TO Tokomaru 545 Lead I TOK002TO Tokomaru 545 Trichloroacetaldehyde Complied ☺ TOK002TO Tokomaru 545 Dichloroacetic acid Complied ☺ TOK002TO Tokomaru 545 Trichloroacetic acid Complied ☺ TOK002TO Tokomaru 545 MAV sum ratio for THMs Complied ☺ TOK002TO Tokomaru 545 MAV sum ratio for HAAs AC ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Manawatu District (page 57 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BUN001BU Bunnythorpe 450 Local Authority Complied P FEI001FE Feilding 13,000 Local Authority Complied P HAL001HA Halcombe-Stanway 475 Local Authority Complied P HIM001HI Himatangi Beach 600 Local Authority I(fd) P LON001LO Longburn 240 Local Authority Complied P SAN001SA Sanson 375 Local Authority Complied P WAI022WA Waituna West 200 Local Authority I(fdi) P School Supplies API001SC Apiti School 37 School BoT N P AWA004SC Awahou School 60 School BoT N P BAI001SC Bainesse School 50 School BoT N P COL006SC Colyton School 110 School BoT N P GLE007SC Glen Oroua School 43 School BoT N P HIW001SC Hiwinui School 70 School BoT N P KAI017SC Kairanga School 151 School BoT I(fi) P ☺ KOP001SC Kopane School 35 School BoT N (school closed since Feb flood) P LON002SC Longburn Adventist College 380 Adventist College Complied P ☺ MTB001SC Mt Biggs School 75 School BoT N P NEW003SC Newbury School 180 School BoT I(fdi) P ☺ ORO003SC Oroua Downs School 120 School BoT N P RAN008SC Rangiwahia School 35 School BoT N P RON001SC Rongotea School 160 School BoT N P SAN004SC Sanson School 120 School BoT N P TAN002SC Tangimoana School 14 School BoT N P TAO001SC Taonui School 50 School BoT N P TEK019TE Te Kawau Playcentre 30 N P UTU001SC Utuwai School 14 School BoT N P Other Supplies HIG001HI Highland Home Christian Camp 40 Highland Home Xn Camp N P KIW003CH Cheltenham 80 Kiwitea Rural Supp.Board E P ☺ KIW003KI Kimbolton 150 Kiwitea Rural Supp.Board E P ☺ LON003LO Longburn, Mainland Meats 50 Food Solutions Ltd. EI(f) P MAI004MA Mainland Products, Longburn 25 Kiwi Co-op Dairies Complied P 1 MAN029MA Manawatu Beef Packers 240 Manawatu Beef Packers Complied P ☺ OHA002OH Ohakea 1,000 Serco-Ohakea(Defence) Complied P ☺ ORO001OR Oroua No. 1 60 Oroua Water Scheme Inc AEI(fdi) P POU006PA Poupatate Marae 25 N P RAN019RA Rangi Woods Camp 35 Rangi Woods Trust Board I(fdi) P SAN005LO Sanitarium Hlth Foods Longburn 120 Sanitarium Hlth Foods I(fdi) P TAN005TA Tangimoana D.C.U. 25 Ministry of Defence I(d) P

1 now called AAFCO Manawatu Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies FEI001FE Feilding (TP00162) 13,000 Fluoride Complied Other Supplies OHA002OH Ohakea 1,000 Lead From Mar ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Palmerston North City (page 58 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ASH001AS Ashhurst 2,800 Local Authority Complied PAL001AO Aokautere 2,000 Local Authority Complied PAL001FW Fitzherbert West 300 Local Authority Complied PAL001KG Kelvin Grove 3,500 Local Authority Complied PAL001PC Palmerston North City 65,000 Local Authority Complied ☺ School Supplies AOK001SC Aokautere School 130 School BoT AEI(fdi) P ☺ LIN004SC Linton School 30 School BoT N P WHA021SC Whakarongo School 190 School BoT I(fdi) P ☺ Other Supplies FON001FC Fonterra Chlorinated 350 Fonterra Research Centre E P FON001FD Fonterra Deionised 1 Fonterra Research Centre Complied P ☺ FON001FS Fonterra Softened 350 Fonterra Research Centre Complied P ☺ LIN001LI Linton 4,500 SERCO-Linton(Defence) Complied MAS001MA Massey University 12,000 Massey University Complied

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies ASH001AS Ashhurst (TP00158) 2,800 Fluoride Complied PAL001AO Aokautere (TP00147) 2,000 Fluoride Complied PAL001FW Fitzherbert West (TP00147) 300 Fluoride Complied PAL001KG Kelvin Grove (TP00147) 3,500 Fluoride Complied PAL001KG Kelvin Grove (TP00150) 3,500 Fluoride Complied PAL001PC Palmerston North City (TP00147) 65,000 Fluoride Complied PAL001PC Palmerston North City (TP00148) 65,000 Fluoride Complied PAL001PC Palmerston North City (TP00149) 65,000 Fluoride Complied PAL001PC Palmerston North City (TP00150) 65,000 Fluoride Complied PAL001PC Palmerston North City (TP02023) 65,000 Fluoride Complied PAL001PC Palmerston North City 65,000 Aggressiveness N Other Supplies LIN001LI Linton (TP00145) 4,500 Fluoride C ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Rangitikei District (page 59 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BUL001BR Bulls RNZAF Area 800 Local Authority I(fdi) P BUL001BU Bulls Township 1,000 Local Authority I(fdi) P HUN001HU Hunterville Township 400 Local Authority I(di) P MAN001MA Mangaweka Township 180 Local Authority I(di) P MAR001MA Marton Township 5,000 Local Authority I(fdi) P RAT001RA Ratana Township 450 Local Authority I(fdi) P TAI001TA Taihape Township 2,200 Local Authority I(fdi) P School Supplies MAT013SC Mataroa School 92 School BoT N P MOA004SC Moawhango School 27 School BoT N P NGA008SC Ngamatea School 15 School BoT N P OTA011SC Otairi School 27 School BoT N P PAP010PA Papanui Junction School 11 School BoT N P PUK010SC Pukeokahu School 27 School BoT N P RAN010SC Rangiwaea School 36 School BoT N P SOU004SC South Makirikiri School 128 School BoT N P TAO002SC Taoroa School 35 School BoT N P TUR002SC Turakina School 92 School BoT N P TUR006TU Turakina Whangaehu PlayCentre 30 N (zone closed Jun 04) P WHA025SC Whangaehu School 17 School BoT I(fdi) P ☺ Other Supplies (No other supplies are included on the Register)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies BUL001BU Bulls Township 1,000 Copper I BUL001BU Bulls Township 1,000 Lead ACI MAR001MA Marton Township 5,000 Bromodichloromethane I ☺ MAR001MA Marton Township 5,000 Trichloroacetaldehyde ACI MAR001MA Marton Township 5,000 MAV sum ratio for THMs I Other Supplies BUL001BR Bulls RNZAF Area 800 Copper I BUL001BR Bulls RNZAF Area 800 Lead I

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Tararua District (page 60 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies AKI001AK Akitio 30 Local Authority I(d) P DAN001DA Dannevirke 6,000 Local Authority Complied P EKE001EK Eketahuna 900 Local Authority Complied P NOR002NO Norsewood 200 Local Authority I(d) P ☺ PAH001PA Pahiatua 2,700 Local Authority Complied P PON001PO Pongaroa 200 Local Authority I(d) P WOO001WO Woodville 1,300 Local Authority E P School Supplies BAL002SC Ballance School 30 School BoT I(fdi) P ☺ KOH001SC Kohinui School 30 School BoT AEI(fdi) P ☺ KUM002SC Kumeroa-Hopelands School 70 School BoT N P MAK004SC Makuri School 30 School BoT N P MAN016SC Mangatainoka School 36 School BoT N P MAN018SC Mangamaire School 65 School BoT I(fdi) P PAP003SC Papatawa School 35 School BoT N P RUA005SC Ruahine School 161 School BoT I(fdi) P TIR005SC Tiraumea School 25 School BoT N P WEB001SC Weber School 65 School BoT N P Other Supplies DBB001DB DB Brewery, Mangatainoka 45 DB Breweries Ltd. AEL P FON002FO Fonterra Pahiatua 100 Complied P ☺ NOR011NO Norsewear Factory, Norsewood 26 Norsewear I(fdi) P PLE002PL Pleckville 200 Pleckville Comm. Cttee N P RIC004RI Richmond Oringi Freezing Works 600 Richmond Oringi N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies EKE001EK Eketahuna 900 Dichloroacetic acid AC EKE001EK Eketahuna 900 MAV sum ratio for HAAs AC WOO001WO Woodville 1,300 Trichloroacetaldehyde AC WOO001WO Woodville 1,300 Dichloroacetic acid Complied ☺ WOO001WO Woodville 1,300 MAV sum ratio for HAAs AC

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Wanganui District (page 61 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ARL001AR Arles Wells 100 Local Authority I(d) P BRU001BR Brunswick-Westmere 450 Local Authority I(d) P FOR001FO Fordell Township 350 Local Authority I(d) MAX001MA Maxwell 200 Local Authority Complied (d) P MOW001MO Mowhanau Beach 300 Local Authority I(d) P OTU003OT Otumaire Camp 25 Local Authority N P PUT002PU Putiki (Airport Road) 120 Local Authority I(d) P WAN001AR Aramoho 5,000 Local Authority From Apr P WAN001EA Wanganui East 5,000 Local Authority Complied P WAN001WA Wanganui City 29,000 Local Authority I(di) P WAN004WA Wanganui Airport 25 Local Authority I(fdi) P School Supplies ABE002AB Aberfeldy School 25 School BoT I(fdi) P ☺ BRU002SC Brunswick School 50 School BoT AEI(fdi) P KAI023SC Kaitoke School 80 School BoT I(fdi) P KAK003SC Kakatahi School 12 School BoT N P KOR004KO Koriniti Kohanga Reo Marae 30 Marae Committee N P MAN019SC Mangamahu School 31 School BoT AEI(fdi) P ☺ MOS003SC Mosston School 160 School BoT N P OKO001SC Okoia School 30 School BoT EI(fdi) P PAR008SC Parikino School 89 School BoT N P RAN011SC Ranana School 30 School BoT N P RAP002RA Rapanui Brunswick Playcentre 20 N (zone closed Jun 04) P UPO001SC Upokongaro School 86 School BoT I(fdi) P ☺ Other Supplies GRE003GR Green Pastures, Rapanui 40 Christian Trust N P JER001JE Jerusalem 25 Marae Committee N P KAI001KA Kaiwhaiki Pa 0 Kaiwhaiki Pa Committee N P KAI002KA Kaitoke 420 Dept. of Corrections Complied LAN001LA Landguard Bluff 25 Ministry of Defence AEI(d) P OKO002OK Okoia 24 Okoia Poultry Processors I(fdi)L P ☺ PIP001PI Pipiriki 25 DOC N P RAN012RA Ranana 25 Marae Committee N P RAU002RA Raukawa Falls YMCA Camp 25 YMCA N P SCO001SC Scoutlands, Wanganui 6 Scout Assn N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies (No supplies have P2 monitoring requirements)

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Carterton District (page 62 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies CAR001CA Carterton 4,200 Local Authority Complied P School Supplies DAL002SC Dalefield School 70 School BoT I(fdi) P GLA001SC Gladstone School 100 School BoT I(fdi) P ☺ Other Supplies TAR006TA Taratahi Ag.Training Centre 100 Taratahi Training Centre AE P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies (No supplies have P2 monitoring requirements)

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Kapiti Coast District (page 63 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies HAU003HA Hautere 700 Local Authority Complied P OTA003OT Otaki 4,700 Local Authority Complied P OTA003WA Waitohu 1,000 Local Authority Complied P PAE002PA Paekakariki 1,700 Local Authority Complied P PAR001PA Paraparaumu 22,400 Local Authority Complied P WAI010PP Peka Peka 150 Local Authority Complied P WAI010WA Waikanae 9,300 Local Authority Complied P School Supplies (No school supplies are included on the Register) Other Supplies ELR001ER El Rancho Christian Camp 200 El Rancho Christian Camp AEI(di) P FIR001FI Firth StressCrete, Otaki 30 Firth StressCrete AEI(fi) P FOR002FL Forest Lakes Christian Camp 100 Forest Lakes Christian C AE P FOR002HO Forest Lakes Camp Homestead 30 Forest Lakes Christian C Complied P GAR003GA Gary Rd Water Supply 25 Gary Rd Water Cttee. N P NGA030NG Ngatiawa Camp 50 N P PAL003PG Palm Grove Christian Camp 100 Camping Ground I(fi) P ☺ QUE004MA Mackays Crossing, QEII Park 400 Wellington Reg. Council Complied P RIV005RL Riverslea Lodge 30 Riverslea Lodge AEI(fdi) P ☺ TEH008TE Te H2 Oro Water Supply 90 Te H2 Oro Water Co. Ltd. N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HAU003HA Hautere 700 Nickel Complied HAU003HA Hautere 700 Cadmium Complied HAU003HA Hautere 700 Lead Complied PAE002PA Paekakariki 1,700 Nickel Complied PAE002PA Paekakariki 1,700 Lead Complied PAR001PA Paraparaumu (TP00206) 22,400 Fluoride Complied WAI010PP Peka Peka (TP00206) 150 Fluoride Complied WAI010WA Waikanae (TP00206) 9,300 Fluoride Complied Other Supplies ELR001ER El Rancho Christian Camp (TP00206) 200 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Masterton District (page 64 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies MAS002MA Masterton 19,000 Local Authority Complied P TIN002TI Tinui 120 Local Authority Complied P ☺ School Supplies MAU005SC Mauriceville School 40 School BoT N P OPA005SC Opaki School 50 School BoT Complied (di) P ☺ RAT005SC Rathkeale College 350 School BoT Complied P ☺ WHA039SC Whareama School 45 School BoT EI(fdi) P ☺ Other Supplies ARA005AR Ararangi Camp 54 Private Camp Complied P ☺ CAM004CA Camp Anderson 60 Camp Anderson Complied P ☺ CAS001CA Castlepoint Motels 30 N P CAS001HO Castlepoint Holiday Park 30 Complied P ☺ FER001FE Fernridge 320 E P MAU003MA Mauriceville 80 Hautuma Lime Works E P OPA001OP Opaki 600 Opaki Water Supply Assn. I(fdi) P ☺ RIV004MC Riversdale Motor Camp 100 E P RIV015RI Riversdale Holiday Park 200 E P WAI058WA Wainuioru Rural Water 184 Wainuioru Rural Scheme AE P WHA038WH Whakataki Hotel 25 Unique Enterprises Ltd N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies MAS002MA Masterton (TP00631) 19,000 Fluoride I ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Porirua City (page 65 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies JUD001JU Judgeford 200 Local Authority Complied ☺ POR001MA Mana/Plimmerton/Paremata 5,184 Local Authority Complied POR001PH Porirua High Level 15,398 Local Authority Complied POR001PL Porirua Low Level 16,924 Local Authority Complied POR001PU Pukerua Bay 1,656 Local Authority Complied POR001WH Whitby 7,282 Local Authority Complied School Supplies (No school supplies are included on the Register) Other Supplies BAT001BA Battle Hill Farm Forest Park 164 Wellington Reg. Council I(di) P ☺ PAU002PA Pauatahanui Café, Rushes Bar 50 I(fdi) P THE004TH The Lodge at the Inlet 90 The Lodge at the Inlet N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies JUD001JU Judgeford (TP00199) 200 Fluoride Complied POR001MA Mana/Plimmerton/Paremata (TP00199) 5,184 Fluoride Complied POR001PH Porirua High Level (TP00199) 15,398 Fluoride Complied POR001PL Porirua Low Level (TP00199) 16,924 Fluoride Complied POR001PU Pukerua Bay (TP00199) 1,656 Fluoride Complied POR001WH Whitby (TP00199) 7,282 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. South Wairarapa District (page 66 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies FEA001FE Featherston 2,580 Local Authority Complied P GRE002GR Greytown 1,952 Local Authority Complied P LAK004LA Lake Ferry Camping Ground 250 Local Authority I(fd) P ☺ MAR003MA Martinborough 1,505 Local Authority Complied P School Supplies KAH002SC Kahutara School 82 School BoT Complied P ☺ SOU006SC South Featherston School 65 School BoT N P TUT003SC Tuturumuri School 29 School BoT I(fdi) P Other Supplies BRA004BR Brakenridge 130 Telfar Properties Ltd N P GAT002GA Gateway Holiday Park 25 I(fdi) P ☺ LAK020LA Lake Ferry Hotel 50 N P PIR004PI Pirinoa 80 Pirinoa Community EI(d) P WHA045WH Wharekauhau Country Estate 60 Wharekauhau Holding Ltd I(f) P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies FEA001FE Featherston 2,580 Lead N FEA001FE Featherston 2,580 MAV sum ratio for HAAs N GRE002GR Greytown 1,952 Lead N MAR003MA Martinborough 1,505 Cadmium N MAR003MA Martinborough 1,505 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Hutt City (page 67 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BUI002BU Buick Street 500 Local Authority Complied LOW001EA Eastbourne 4,704 Local Authority Complied LOW001HA Haywards 372 Local Authority Complied LOW001LO Lower Hutt 56,103 Local Authority Complied LOW001PE Petone 8,034 Local Authority Complied LOW001ST Stokes Valley 9,198 Local Authority Complied LOW001WA Wainuiomata 17,058 Local Authority Complied School Supplies (No school supplies are included on the Register) Other Supplies BEL003ST Stratton Street Woolshed 25 Wellington Reg. Council AEI(fdi) P BRO002BR Brookfield Scout Camp 115 Wellington Scout Assoc. I(d) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies LOW001EA Eastbourne (TP00203) 4,704 Fluoride Complied LOW001HA Haywards (TP00199) 372 Fluoride Complied LOW001LO Lower Hutt (TP00203) 56,103 Fluoride Complied LOW001PE Petone (TP00203) 8,034 Fluoride Complied LOW001ST Stokes Valley (TP00199) 9,198 Fluoride Complied LOW001WA Wainuiomata (TP00201) 17,058 Fluoride Complied LOW001WA Wainuiomata (TP00202) 17,058 Fluoride Complied LOW001WA Wainuiomata (TP00203) 17,058 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Upper Hutt City (page 68 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies UPP001PI Pinehaven 3,090 Local Authority Complied UPP001UP Upper Hutt Central 31,560 Local Authority Complied School Supplies MAN027SC Mangaroa School 80 School BoT I(fi) P Other Supplies AKA002AK Akatarawa Camp 80 Salvation Army I(fdi) P BLA006BL Black Stump Youth Hostel 25 Black Stump Youth Hostel N P KAI035KA Kaitoke Country Gardens 90 Kaitoke Country Gardens N P KAI040LO Lower Picnic Area, Kaitoke RP 274 Wellington Reg. Council I(fdi) P KIW002KI Kiwi Ranch - Upper Hutt 150 Kiwi Ranch N P STA002SW Staglands 25 Staglands Wildlife Park I(fdi) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies UPP001PI Pinehaven (TP00199) 3,090 Fluoride Complied UPP001UP Upper Hutt Central (TP00199) 31,560 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Wellington City (page 69 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies WEL002BR Brooklyn 9,765 Local Authority Complied WEL002CH Churton 4,446 Local Authority Complied WEL002EA Eastern Wellington 16,815 Local Authority Complied WEL002JO Johnsonville 18,357 Local Authority Complied WEL002KA Karori 13,146 Local Authority Complied WEL002KE Kelburn 9,924 Local Authority Complied WEL002ON Onslow 11,883 Local Authority Complied WEL002SO Southern Wellington 30,024 Local Authority Complied ☺ WEL002TA Tawa 12,903 Local Authority Complied WEL002WA Wadestown 6,789 Local Authority Complied WEL002WE Wellington Central 31,074 Local Authority Complied ☺ School Supplies (No school supplies are included on the Register) Other Supplies BOO001BO Boom Rock Lodge 40 Papanui Station AEI(i) P COU002CO Country Club Riding Acad. Cafe 25 Country Club Riding Acad I(fdi) P ☺ KAR009KA Karori Golf Club Inc. 90 Karori Golf Club Inc. I(fi) P ☺ MAK009MA Makara Beach - Ma and Pa Diner 40 Diner owner N P OHA014OH Ohariu Valley Golf Club 50 N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Wellington City (page 70 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies WEL002BR Brooklyn (TP00199) 9,765 Fluoride Complied WEL002BR Brooklyn (TP00201) 9,765 Fluoride Complied WEL002BR Brooklyn (TP00202) 9,765 Fluoride Complied WEL002BR Brooklyn (TP00203) 9,765 Fluoride Complied WEL002CH Churton (TP00199) 4,446 Fluoride Complied WEL002EA Eastern Wellington (TP00199) 16,815 Fluoride Complied WEL002EA Eastern Wellington (TP00201) 16,815 Fluoride Complied WEL002EA Eastern Wellington (TP00202) 16,815 Fluoride Complied WEL002EA Eastern Wellington (TP00203) 16,815 Fluoride Complied WEL002EA Eastern Wellington 16,815 Lead AC WEL002JO Johnsonville (TP00199) 18,357 Fluoride Complied WEL002JO Johnsonville (TP00201) 18,357 Fluoride Complied WEL002JO Johnsonville (TP00202) 18,357 Fluoride Complied WEL002JO Johnsonville (TP00203) 18,357 Fluoride Complied WEL002KA Karori (TP00199) 13,146 Fluoride Complied WEL002KA Karori (TP00201) 13,146 Fluoride Complied WEL002KA Karori (TP00202) 13,146 Fluoride Complied WEL002KA Karori (TP00203) 13,146 Fluoride Complied WEL002KE Kelburn (TP00199) 9,924 Fluoride Complied WEL002KE Kelburn (TP00201) 9,924 Fluoride Complied WEL002KE Kelburn (TP00202) 9,924 Fluoride Complied WEL002KE Kelburn (TP00203) 9,924 Fluoride Complied WEL002ON Onslow (TP00199) 11,883 Fluoride Complied WEL002ON Onslow (TP00201) 11,883 Fluoride Complied WEL002ON Onslow (TP00202) 11,883 Fluoride Complied WEL002ON Onslow (TP00203) 11,883 Fluoride Complied WEL002SO Southern Wellington (TP00199) 30,024 Fluoride Complied WEL002SO Southern Wellington (TP00201) 30,024 Fluoride Complied WEL002SO Southern Wellington (TP00202) 30,024 Fluoride Complied WEL002SO Southern Wellington (TP00203) 30,024 Fluoride Complied WEL002TA Tawa (TP00199) 12,903 Fluoride Complied WEL002WA Wadestown (TP00199) 6,789 Fluoride Complied WEL002WA Wadestown (TP00201) 6,789 Fluoride Complied WEL002WA Wadestown (TP00202) 6,789 Fluoride Complied WEL002WA Wadestown (TP00203) 6,789 Fluoride Complied WEL002WA Wadestown 6,789 Aggressiveness to be resolved Complied WEL002WE Wellington Central (TP00199) 31,074 Fluoride Complied WEL002WE Wellington Central (TP00201) 31,074 Fluoride Complied WEL002WE Wellington Central (TP00202) 31,074 Fluoride Complied WEL002WE Wellington Central (TP00203) 31,074 Fluoride Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Marlborough District (page 71 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BLE001BL Blenheim 21,588 Local Authority I(fdi) P HAV002HA Havelock 474 Local Authority I(di) P PIC001PI Picton/Waikawa 3,990 Local Authority I(di) P REN001RE Renwick 1,788 Local Authority I(fdi) P RIV002RI Riverlands Industrial Estate 561 Local Authority I(di) P SED001DA Dashwood Rural 100 Local Authority AEI(d) P ☺ SED001SE Seddon,Awatere Valley 600 Local Authority AEI(d) P ☺ WAI034WA Wairau Valley 125 Local Authority I(d) P School Supplies CAN002SC Canvastown School 33 School BoT I(fdi) P COB002CO Cobham Outward Bound School 190 School BoT EI(fdi) P ☺ FRE002SC French Pass School 15 School BoT I(fdi) P ☺ GRO001SC Grovetown School 73 School BoT N P LIN006SC Linkwater School 65 School BoT N P RAI004SC Rai Valley School 184 School BoT N P RAP001SC Rapaura School 150 School BoT I(fdi) P ☺ RIV010SC Riverlands School 250 School BoT N P SPR005SC Spring Creek School 65 School BoT N P TUA006SC Tuamarina School 100 School BoT N P WAI077SC Waitaria Bay School 30 School BoT N P Other Supplies AUS001AB Aussie Bay 25 DOC N P BAY004BA Bay of Many Coves 20 Bay of Many Coves Resid. N P BEL002BE Bellview Bay 45 Residents Assn. N P BLE002BL Blenheim Bridge Hol.Park 30 Camping Ground N P BUL002BU Bulwer Tourist Resort 15 Bulwer Tourist Resort N P CAM003CA Camp Bay, Endeavour Inlet 30 DOC N P CED001CE Cedarview Motel 6 Motel owner N P CHA006CH Chartridge Park 5 Chartridge Park N P COW001CO Cowshed Bay Camp 60 DOC N P DEE001DE Deep Creek Camp 20 Cobham Outward Bound Sch N P DIP002DI Dip Flat Camp 200 NZ Defence I(fdi) P ☺ DUN005DU Duncannon Caravan Pk.Blenheim 50 Camping Ground N P DUN006DU Duncan Bay 30 Duncan Bay Residents N P DUR001DU DUrville Is, Wilderness Resort 10 Resort owner N P ELA001EL Elaine Bay 25 DOC N P END001EN Endeavour Resort 10 Endeavour Resort N P FRE003FR French Pass Camp 25 DOC N P FUR001FU Furneaux Lodge 10 Furneaux Lodge N P HAK004HA Haka Haka 5 Haka Haka Residents N P KIW005KI Kiwi Ranch, Curious Cove 80 Kiwi Ranch, Curious Cove N P LOC002LO Lochmara Lodge 10 Lochmara Lodge N P MAR015MA Marfells Beach 10 DOC N P MIS001MI Mistletoe Bay 25 DOC N P MOE001MO Moenui 56 Moenui Residents N P MOE002MO Moetapu Bay 15 Moutapu Bay Residents N P MOM001MO Momorangi Bay Camp 25 DOC N P NGA020BR Brough Place, Ngakuta Bay 14 Brough Place Residents N P NGA020NG Manuka Drive, Ngakuta Bay 20 Manuka Drive Residents N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Marlborough District (page 72 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change NYD001NY Nydia Bay Lodge 10 DOC N P OKI001OK Okiwa Park 70 Okiwa Park Water Inc. I(d) P OKI001TH Thompson Scheme, Tiromoana 16 Thompson Water Supply In N P OKI002OK Okiwi Bay Holiday Park 10 Okiwi Bay Holiday Park N P OKI003OK Okiwi Bay 11 Okiwi Bay Ratepayers Ass N P OKI003OS Okiwi Bay Old Scheme 64 Okiwi Bay Ratepayers Ass N P ONA001ON Onamalutu 25 DOC N P PEL001PE Pelorus Bridge 120 DOC N P PEN002TB Penzance/Tuna Bay 25 Penzance/T.Bay Residents N P PIN004PI Pine Valley Camp 25 EI(fdi) P POH002PO Pohuenui Island Lodge 5 Pohuenui Island Lodge N P POR007PO Portage Hotel 20 Hotel Management N P PUN006PU Punga Cove 20 Punga Cove N P QUE002QU Queen Charlotte Chalets 5 Queen Charlotte Chalets N P QUE003QU Queen Charlotte Resort 5 Queen Charlotte Resort N P RAE003RA Raetihi Lodge, Double Bay 10 Raetihi Lodge N P RAR001RA Rarangi 180 Nth Rarangi Wat Sup. Inc E P RES001RE Resolution Bay Cabins 20 Resolution Bay Cabins N P SMI002SM Smiths Farm 30 Smiths Farm N P SPR004SP Spring Creek Camp 40 Camping Ground Owners N P STO003ST St Omer House 10 St Omer House N P TEM006TE Te Mahia Bay Resort 5 Te Mahia Bay Resort N P TEN002TE Tennyson Inlet 10 DOC N P TER006TE Te Rawa, Wilson Bay 10 Te Rawa N P TRO002TR Trout Hotel, Canvastown 26 Trout Hotel N P TUA008WE Tuamarina West 60 Tuamarina West Residents I(di) P ☺ WAI132WA Waihopai Terraces 70 Waihopai Terraces Resid. N P WAI133WA Waitata Bay Lodge 10 Waitata Bay Lodge N P WAK002WA Wakamarina-Pinedale Camping 10 Camping Ground N P WAR003WA Ward 250 Ward Community N P WAT001WA Waterfall Bay Lodge 8 Waterfall Bay Lodge N P WHA037WH Whatamango Bay 30 DOC N P WHI006WH Whites Bay Camp 10 DOC N P WOO004WO Woodbourne RNZAF Base 1,500 Ministry of Defence Complied P ☺ WRE001WR Wrekin, Fairhall 30 Wrekin Residents N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies BLE001BL Blenheim 21,588 Aggressiveness to be resolved N PIC001PI Picton/Waikawa 3,990 Lead I PIC001PI Picton/Waikawa 3,990 MAV sum ratio for HAAs N REN001RE Renwick 1,788 Lead N SED001SE Seddon, Awatere Valley 600 Nickel N SED001SE Seddon, Awatere Valley 600 Lead N Other Supplies RIV002RI Riverlands Industrial Estate 561 Nickel N WOO004WO Woodbourne RNZAF Base (TP01185) 1,500 Fluoride I

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Nelson City (page 73 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies NEL001NL Nelson 43,000 Local Authority Complied School Supplies HIR001HS Hira School 90 School BoT I(fdi) P Other Supplies GLE013GL Glenwood 120 Glenwood Water Company AEI(fdi) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies NEL001NL Nelson 43,000 Trichloroacetaldehyde From Aug NEL001NL Nelson 43,000 Dichloroacetic acid From Aug NEL001NL Nelson 43,000 Trichloroacetic acid From Aug NEL001NL Nelson 43,000 MAV sum ratio for HAAs From Aug

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Tasman District (page 74 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies COL007CO Collingwood 450 Local Authority From Apr P DOV001DO Dovedale Rural 450 Local Authority Complied P EIG001EI Eighty Eight Valley Rural 200 Local Authority Complied P HOP001HO Hope/Brightwater 2,000 Local Authority E KAI015KA Kaiteriteri 300 Local Authority Complied (f) P MOT001MO Motueka 1,200 Local Authority Complied P MUR001MU Murchison 680 Local Authority Complied P ☺ POH001PV Pohara 150 Local Authority Complied P ☺ RED001R1 Redwoods #1 180 Local Authority Complied P RED001R2 Redwoods #2 370 Local Authority Complied P RIC002RI Richmond 10,500 Local Authority Complied TAP003TA Tapawera 400 Local Authority Complied P TOR002TO Torrent Bay Village 25 Local Authority N P UPP002UT Upper Takaka 50 Local Authority E P WAI023MR Mapua Ruby Bay 1,500 Local Authority Complied ☺ WAI023WA Waimea Industrial 180 Local Authority Complied WAK001WA Wakefield 1,500 Local Authority Complied P School Supplies APP001AS Appleby School 110 School BoT I(fdi) P BRO001BS Brooklyn School 100 School BoT I(fdi) P CEN004SC Central Takaka School 33 School BoT From Feb P ☺ GOL001GB Golden Bay High School 380 School BoT Complied P LAK005LR Lake Rotoiti School 32 School BoT I(fdi) P MAH002MS Mahana School 70 School BoT From Aug P ☺ MOT004MS Motueka South School 250 School BoT Complied P MOT005MH Motueka High School 680 School BoT I(fdi) P ☺ MOT006MS Motupipi School 100 School BoT EI(fdi) P NGA005NS Ngatimoti School 77 School BoT E P PAR006PS Parklands School 300 School BoT I(fdi) P RIW001RS Riwaka School 200 School BoT I(fdi) P STP001SP St Peter Chanel School 80 School BoT From Feb P TAK003TS Takaka School 170 School BoT From Feb P TAS001TS Tasman School 60 School BoT I(fdi) P ☺ TAS003SC Tasman Bay Christian School 55 Tasman Bible Church EI(fdi) P Other Supplies ABE001AN Anchorage 25 DOC EI(fdi) P ABE001AW Awaroa 10 DOC EI(fdi) P ABE001BB Bark Bay 25 DOC EI(fdi) P ABE001TO Totaranui 50 DOC EI(fdi) P AWA007AW Awaroa Lodge, Abel Tas. NP 30 Awaroa Lodge E P BRO004BR Brooklyn Community 75 Brooklyn Water Company I(fdi) P CEN002CT Central Takaka 200 Central Takaka Water Bd N P EVE001EV Eves Vly Sawmill Carter Holt 274 Carter Holt Harvey I(fdi) P GRA002GR Graham Downs Community 35 Communal Supply EI(fdi) P ☺ HAM004HA Hamama Rural 75 Water supply committee N P LAK013LA Lake Rotoiti 75 DOC Complied P LOW006LO Lower Moutere Water Scheme 450 Lower Moutere Water Ltd I(fdi) P MAR004MM Marahau Motor Camp 20 Marahau Motor Camp N P MOT012MO Motueka Family Service Centre 60 Centre Owners I(fdi) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Tasman District (page 75 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change NGA004NH Ngawhatu 40 Stoke Valley Holdings N (zone closed Oct 04) P NGA022NG Ngati Rarua Atiawa Iwi Trust 10 Ngati Rarua Atiawa Iwi N P OLD001OL Old McDonalds Farm 25 Old McDonalds Farm N P PAK002PM Pakawau Motor Camp 25 Pakawau Motor Camp I(fdi) P ☺ PAR005PP Para Para 40 Para Para Water Bd N P POR004TA Talley's (Port Motueka) 350 Talley's Fisheries Complied P QUI001QU Quinneys Bush Camp 25 Quinneys Bush Camp EI(fdi) P RIV008RI Riverside Community 70 Complied P ☺ SHI004SH Shiloh Christian Academy 30 N P THE005TH The Barn 25 The Barn N P TOT001TO Totara Ave, Pakawau 100 N P TUI001TU Tui Community 25 Tui Community I(fdi) P ☺ TUK001TU Tukurua 100 Tukurua Water Bd EI(fdi) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HOP001HO Hope/Brightwater 2,000 Lead Complied MOT001MO Motueka 1,200 Nickel Complied MOT001MO Motueka 1,200 Lead Complied RIC002RI Richmond 10,500 Nitrate (as NO3) Complied ☺ WAI023MR Mapua Ruby Bay 1,500 Lead I School Supplies MOT005MH Motueka High School 680 Nickel N MOT005MH Motueka High School 680 Copper N MOT005MH Motueka High School 680 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Ashburton District (page 76 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ASH003AS Ashburton 15,000 Local Authority Complied P ASH009AS Ashburton Airport 100 Local Authority Complied P CHE002CH Chertsey 100 Local Authority Complied P DRO001DR Dromore 75 Local Authority Complied P FAI001FA Fairton 170 Local Authority Complied P HAK001HH Hakatere Huts 50 Local Authority Complied P HIN001HI Hinds 200 Local Authority Complied P ☺ MAY001MA Mayfield 120 Local Authority Complied P MET001ME Methven Township 900 Local Authority Complied P ☺ MET002MS Methven/Springfield 160 Local Authority Complied P MON001MO Montalto/Klondyke 30 Local Authority Complied P ☺ MTP001MT Mt Potts Lodge 50 Local Authority Complied P ☺ MTS001MS Mt Somers Township 120 Local Authority Complied P RAK001RA Rakaia Township 750 Local Authority Complied P ☺ WIN003WI Winchmore 75 Local Authority Complied P School Supplies CAR004SC Carew School 50 School BoT I(f) P DOR001SC Dorie School 57 School BoT I(fdi) P LAG001SC Lagmhor School 50 School BoT N P LAU003SC Lauriston School 75 School BoT Complied P LON004SC Longbeach School 86 School BoT Complied P LOW007SC Lowcliffe School 34 School BoT N P WAK003SC Wakanui School 60 School BoT N P Other Supplies ASH005AS Ashburton Hospital 200 Canterbury Health Complied P ☺ ASH007GC Ashburton Golf Club 600 Ashburton Golf Club I(fdi) P ASH008HO Ashburton Hotel 200 Complied P ASH010AS Ashburton Celtic RFC 150 Ashburton Celtic RFC Complied P HAK003HA Hakatere Huts - Lower Tce. 56 I(fdi) P HIG002HI Highbank Society Water Supply 400 Highbank Water Soc. Ltd. Complied P KOH003KO Kohuia Lodge 45 Kohuia Lodge N P LAK022LA Lake Hood 300 Ashbtn Aquatic Prk Trust Complied P MET004ME Methven Youth Lodge 25 Seventh-Day Adventist Ch E P MTH001MT Mt Hutt Ski Field 3,500 Mt Cook Group I(d) P PPC002FA PPCS Fairton 400 PPCS Ltd L P RAK004RA Rakaia South Fishing Huts 100 Complied P RAN018RA Rangitata North Fishing Huts 300 Complied P THE007TH The Homestead, Mt Hutt Station 25 Mt Hutt Station Complied P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Ashburton District (page 77 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies ASH003AS Ashburton 15,000 Aggressiveness Complied ☺ MET001ME Methven Township (TP00342) 900 Fluoride From Aug ☺ MET001ME Methven Township 900 Nickel N MET001ME Methven Township 900 Copper N MET001ME Methven Township 900 Cadmium N MET001ME Methven Township 900 Lead N RAK001RA Rakaia Township 750 Lead N Other Supplies ASH007GC Ashburton Golf Club 600 Aggressiveness Complied MTH001MT Mt Hutt Ski Field (TP01504) 3,500 Chlorate N MTH001MT Mt Hutt Ski Field 3,500 Nickel N MTH001MT Mt Hutt Ski Field 3,500 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Banks Peninsula District (page 78 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies AKA001AY Aylemers 900 Local Authority AEI(fi) P AKA001LA L'Aube Hill 450 Local Authority AE P BIR001BI Birdlings Flat 240 Local Authority E P DUV001DU Duvauchelle 440 Local Authority I(fdi) P LIT001LI Little River 240 Local Authority I(d) P ☺ LYT001DL Diamond Harbour Low 600 Local Authority AEI(fi) P LYT001DT Diamond Harbour Top 90 Local Authority AE P LYT001GL Governors Bay Low 390 Local Authority N P LYT001GM Governors Bay Middle 500 Local Authority AE P LYT001GT Governors Bay Top 10 Local Authority N P LYT001LL Lyttelton Low 180 Local Authority AE P LYT001LM Lyttelton Middle 1,380 Local Authority I(i) P LYT001LT Lyttelton Top 570 Local Authority AEI(i) P PIG001PI Pigeon Bay 50 Local Authority I(fdi) P ☺ TAK002TA Takamatua 280 Local Authority I(fdi) P ☺ WAI138WA Wainui 320 Local Authority Complied (d) P ☺ School Supplies GOV001SC Governers Bay Preschool 40 Allandale Domain Board I(fdi) P LEB001SC Le Bons Bay School 12 School BoT Complied (fi) P LIT002SC Little River School 85 School BoT I(fi) P ☺ Other Supplies FRE005FR French Farm Winery 95 N P LIV001BB Bell Bird Heights 36 Living Springs Trust AEI(fdi) P LIV001FA The Farm Park 100 Living Springs Trust AEI(fdi) P LIV001MA Main Camp 180 Living Springs Trust I(fdi) P LIV001OC Outdoor Camping Centre 30 Living Springs Trust I(fdi) P OKA010OK Okains Bay 105 Okains Bay Water Cttee N P PUR008PU Purau Motor Camp 50 EI(i) P TAK005TA Takamatua Valley Vineyard 95 N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies AKA001AY Aylemers (TP00190) 900 Chlorate N AKA001AY Aylemers 900 Trichloroacetaldehyde N AKA001AY Aylemers 900 MAV sum ratio for THMs N AKA001AY Aylemers 900 MAV sum ratio for HAAs N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Buller District (page 79 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies LIT003LI Little Wanganui 120 Local Authority N P MOK001MO Mokihinui 50 Local Authority N P PUN001PU Punakaiki 125 Local Authority EI(d) P REE001RE Reefton 1,044 Local Authority AEI(fdi) P WAI001WA Waimangaroa 200 Local Authority N P WES001CA Carters Beach 300 Local Authority Complied (d) P WES001WE Westport 5,000 Local Authority I(fdi) P School Supplies GRA004SC Granity School 70 School BoT N P INA002SC Inangahua Junction School 14 School BoT N P KAR006SC Karamea School 136 School BoT Complied P ☺ MAR011SC Maruia School 30 School BoT I(fdi) P ☺ WAI156WA Waimangaroa School 30 School BoT N P Other Supplies BAY005BA Bayhouse Cafe, Tauranga Bay 50 Bayhouse Cafe N P BIR002BI Birchfield 50 Birchfield N P CHA005CH Charleston Motor Camp 25 Charleston Lodge N P GRA001GR Granity 100 N P HEC001HE Hector 100 N P HEC001NG Ngakawau 68 N P INA002IN Inangahua Junction 75 Inangahua Junction N P KAR008KA Karamea Motor Camp 25 Karamea Motor Camp N P KAR012KA Karamea Village Hotel 40 Karamea Village Hotel N P LAS001LA Last Resort, Karamea 100 Last Resort N P MIL005MI Milburn 140 Milburn Cement Complied PUN005PU Punakaiki Information Centre 25 DOC N P PUN007PU Punakaiki Rocks Hotel 90 AEI(fdi) P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies REE001RE Reefton 1,044 Cadmium From Jul ☺ REE001RE Reefton 1,044 Antimony AE ☺ REE001RE Reefton 1,044 Lead I ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Christchurch City (page 80 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BRO012BR Brooklands / Kainga 1,400 Local Authority Complied CHR001CE Central Christchurch 186,500 Local Authority Complied CHR001NW North-West Christchurch 67,500 Local Authority Complied CHR001PA Parklands 11,000 Local Authority Complied CHR001RI Riccarton 8,200 Local Authority Complied CHR001RP Rocky Point 1,700 Local Authority Complied CHR001WE West Christchurch 31,000 Local Authority I(i) THE006TG The Groynes 150 Local Authority I(d) P ☺ School Supplies CAN004CA Canterbury Christian College 150 School BoT N P CHR006CH Christs College 640 School BoT N P HAL005SC Halswell Primary School 640 School BoT N P HAM005SC Hammersley Park Primary School 156 School BoT N P LIN005SC Linwood Ave Primary School 340 School BoT Complied P MAI001SC Mairehau Primary School 400 School BoT Complied P MAR008SC Marshlands Primary School 220 School BoT N P MCK001SC McKenzie Residential School 29 School BoT Complied (f) P OUR001SC Ouruhia Primary School 84 School BoT N P RIC003SC Richmond Primary School 199 School BoT N P SHI002SC Shirley Primary School 220 School BoT Complied P SOU003SC South Hornby Primary School 300 School BoT I(fdi) P WAI060SC Wainoni Primary School 130 School BoT N P WES006SC West Spreydon Primary School 253 School BoT I(fdi) P WHA044SC Wharenui Primary School 165 School BoT I(fdi) P YAL001SC Yaldhurst Primary School 140 School BoT N P Other Supplies CHR002CI Christchurch Int. Airport 4,150 Chch Int. Airport Co. AI(d) P CHR005CH Christchurch Hospital 1,200 Canterbury Health Complied CHR005PA Pathology Building 400 Canterbury Health Complied HIL002HI Hillmorten Centre 300 Canterbury DHB AEI(d) P PAP009ME Paparua Mens Prison 1,200 Dept. of Corrections Complied P ☺ PAP009WO Paparua Womens Prison 210 Dept. of Corrections AE P PRI001PM Princess Margaret Hospital 600 Canterbury DHB I(d) P ☺ RUA011RU Ruapuna Park Raceway 300 Ruapuna Park I(fdi) P SPE002SP Spencer Holiday Park 30 N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies CHR001NW North-West Christchurch 67,500 Nitrate (as NO3) Complied Other Supplies PAP009ME Paparua Mens Prison 1,200 Nitrate (as NO3) Complied PRI001PM Princess Margaret Hospital 600 Nickel N PRI001PM Princess Margaret Hospital 600 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Grey District (page 81 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies AHA001TO Ahaura Township 160 Local Authority N P BLA001BL Blackball 396 Local Authority Complied P GRE001CO Cobden 1,839 Local Authority Complied P GRE001GM Greymouth 5,676 Local Authority Complied P RUN001RA Rapahoe 102 Local Authority Complied P RUN001RU Runanga 1,337 Local Authority Complied P SHA003SH Shantytown 50 Local Authority N P STI001ST Stillwater 122 Local Authority Complied P TAY001DO Dobson 464 Local Authority Complied P TAY001TA Taylorville 198 Local Authority Complied P School Supplies AHA001AH Ahaura School 35 School BoT N P BAR001SC Barrytown School 30 School BoT I(fdi) P ☺ LAK008SC Lake Brunner School 24 School BoT N P ROT005RO Rotomanu School 24 School BoT N P TOT002SC Totara Flat School 48 School BoT N P Other Supplies GLO001GL Gloriavale 320 Gloriavale Community N P KOK006KO Kokiri Meat Works 170 Kokiri Ltd E P LAK016LA Lake Brunner Country Motel 50 L. Brunner Country Motel N P MOA002CA Camping Ground at Moana 117 N P MOA003MO Moana Hotel 60 Moana Hotel N P NEL003NE Nelson Creek 50 Nelson Creek Comm.Board N P NGA029NG Ngahere Hotel 25 N P STA007ST Station House Cafe, Moana 48 Station House Cafe N P TEK018TE Te Kinga 30 Ellerm Norton Ltd N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies GRE001CO Cobden 1,839 Aggressiveness N GRE001GM Greymouth 5,676 MAV sum ratio for HAAs N GRE001GM Greymouth 5,676 Aggressiveness N RUN001RU Runanga 1,337 Aggressiveness N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Hurunui District (page 82 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies AMB001AR Amberley Beach/Rural 480 Local Authority Complied P ☺ AMB001AT Amberley Town 1,200 Local Authority Complied P ☺ AMU001RO Rotherham Township and Rural 400 Local Authority Complied P ASH002AS Ashley/Sefton Rural 3,700 Local Authority Complied P ☺ BAL003BA Balmoral Rural Water Supply 200 Local Authority E P CHE001CT Cheviot Town 700 Local Authority AEI(fd) P CUL001CU Culverden 475 Local Authority AE P HAN001HA Hanmer Town 1,500 Local Authority I(d) P HAW001HW Hawarden/Waikari 750 Local Authority I(d) P ☺ HUR002HU Blythe Rural Water Supply 50 Local Authority I(fdi) P ☺ KAI039KA Kaiwara 84 Local Authority AE P ☺ KAR005KA Lower Waitohi 300 Local Authority AE P ☺ LEI001LB Leithfield - Broomfield 150 Local Authority N P LEI001LE Leithfield Rural 500 Local Authority E P ☺ LEI004LE Leithfield Beach 150 Local Authority Complied P MOT016MO Motunau, Greta, Scargill 600 Local Authority AEI(fdi) P PAR009PA Parnassus Rural 100 Local Authority AE P ☺ PAT005GO Gore Bay, Port Robinson 300 Local Authority AE P ☺ PEA001PE Peaks Rural Water Supply 100 Local Authority Complied P ☺ WAI026WT Waiau Township 400 Local Authority Complied P ☺ WAI066UP Waitohi Upper, Waipara 400 Local Authority Complied P ☺ WAI067WA Waiau Rural 300 Local Authority AE P ☺ WAI068WA Waipara Township 220 Local Authority Complied P ☺ School Supplies (No school supplies are included on the Register) Other Supplies ALP001AL Alpine Apartments 10 N P ALP002AL Alpine Adventure Tourist Camp 100 Automobile Association AE P AMU002AM Amuri Ski Field 1 Amuri Ski Club N P BAL006BA Balmoral Recreation Area 20 Balmoral Rec. Area Trust Complied P ☺ BOY001BO Boyle Rvr.Outdoor Ed.Centre 25 Nth. Canty. Alpine Trust N P CAR003CA Carter Holt Harvey-Sefton 200 Carter Holt Harvey I(i) P ☺ HAN002FC Hanmer Springs Forest Camp 10 AE P MTL001MT Mt Lyford Ski Village 40 Mt Lyford Ski Field I(fi) P ☺ MTL001SK Mt Lyford Ski Field 4 Mt Lyford Ski Field I(fi) P ☺ STA006ST Staging Post 5 Staging Post N P WAI083WA Waipara Springs Winery 10 Winery Complied P ☺ WAI137WA Waipara Riverside Park 5 Boys Brigade Complied P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies CHE001CT Cheviot Town 700 Antimony N HAW001HW Hawarden/Waikari 750 Nickel N HAW001HW Hawarden/Waikari 750 Copper N HAW001HW Hawarden/Waikari 750 Cadmium N HAW001HW Hawarden/Waikari 750 Lead N MOT016MO Motunau, Greta, Scargill 600 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Kaikoura District (page 83 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies FER003FE Fernleigh Rural Water Supply 150 Local Authority I(i) P ☺ KAI004KU Kaikoura Urban 2,000 Local Authority I(d) P KAI004SB South Bay, Kaikoura 500 Local Authority Complied P KIN003KI Kincaid Rural Water Supply 120 Local Authority Complied P ☺ OAR001OA Oaro 400 Local Authority Complied P ☺ PEK002PE Peketa Village 100 Local Authority N P WAI061WA Waipapa Bay Camp 2 Local Authority I(fi) P School Supplies (No school supplies are included on the Register) Other Supplies CLE002CL Clematis Grove Motel 100 Motel Proprietors N P FYF001FY Fyffe Country Inn 5 I(fi) P ☺ GOO002BO Boat Harbour Camp 1 DOC I(fdi) P ☺ GOO002GO Goose Bay Camp 25 DOC N P GOO002OM Omihi Reserve 1 DOC N P GOO002PA Paia Point 1 DOC N P KAI021EA Kaikoura East Coast Rural 150 Communal Supply N P KAI022KA Kaikoura Golf Club 50 Golf Club I(fi) P KAI038KA Kaikoura Airport 5 Kaikoura Airprt Services I(fi) P KAI042KA Kaikoura Lodge 100 Complied P ☺ KEK001KE Kekerengu 25 Kekerengu Community N P KEK001RE Kekerengu Restaurant 300 Kekerengu Community N P OCE001MO Ocean View Motel 2 Ocean View Proprietor I(fi) P OCE001OC Ocean View Restaurant 50 Ocean View Proprietor I(fdi) P PEK003PE Peketa Motor Camp 5 Peketa Camp I(fi) P RAK002RA Rakautara 50 Rakautara Community N P WAI172WA Waikene Tourist Lodge 30 I(fi) P ☺

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies (No supplies have P2 monitoring requirements)

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Mackenzie District (page 84 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ALL001AL Allandale 150 Local Authority EI(d) P BUR002BU Burkes Pass 30 Local Authority EI(d) P FAI002FA Fairlie 850 Local Authority I(fdi) P ☺ FAI002KI Kimbell 150 Local Authority I(fdi) P TEK005TE Tekapo 500 Local Authority Complied P TWI001TW Twizel 1,300 Local Authority AEI(d) P School Supplies (No school supplies are included on the Register) Other Supplies ALB001AL Albury Rural 125 Albury Water Committee AEI(fdi) P ☺ BAL005BA Balmoral Army Camp 50 Ministry of Defence EI(d) P GLE012GL Glentanner Restaurant & Camp 20 Glentanner Park Centre N P HAL004HA Haldon Arms Camping Ground 20 Haldon Arms Camping Assn N P MTC001MT Mt Cook 200 DOC AE P ☺ MTD001MT Mt Dobson Skifield 280 Mt Dobson Skifield Ltd N P RAI005RA Raincliff Camp 90 Anglican Church N P ROU001RO Roundhill, L. Tekapo Skifield 320 Lake Tekapo Skifield Ltd N P TAS002TA Tasman Airfield - Mt Cook 10 Mt Cook Group Ltd N (zone closed Dec 04) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies FAI002FA Fairlie 850 Lead N TWI001TW Twizel 1,300 Copper N TWI001TW Twizel 1,300 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Selwyn District (page 85 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ARM001AR Armack Drive, Rolleston 50 Local Authority I(fd) ☺ ART002AR Arthurs Pass 250 Local Authority Complied P BRA003BR Branthwaite Drive 60 Local Authority Complied ☺ BUR003BU Burnham East 40 Local Authority Complied ☺ CAS003CA Castle Hill 20 Local Authority I(i) P DAR001DA Darfield 1,350 Local Authority I(fdi) P DUN008DU Dunsandel & Sherwood Estate 420 Local Authority Complied P ☺ EDE002ED Edendale, Sandy Knolls 150 Local Authority AE P JOH001JO Johnson Rd, West Melton 150 Local Authority Complied P ☺ JOW001JO Jowers Rd West Melton 75 Local Authority AEI(fd) P KIR001KI Kirwee 300 Local Authority I(fdi) P LAK007LA Lake Coleridge 25 Local Authority I(fdi) P LEE001LE Leeston 1,250 Local Authority I(fi) P LIN002LI Lincoln 1,295 Local Authority I(fdi) P PRE001PR Prebbleton 500 Local Authority Complied P RAK003RA Rakaia Huts 141 Local Authority Complied P ☺ RAV001RA Raven Drive 25 Local Authority Complied ☺ ROL001RO Rolleston 2,000 Local Authority I(i) P SEL001AC Acheron 140 Local Authority AEI(fdi) P SEL001HO Hororata 292 Local Authority I(fdi) P SHE004SH Sheffield/Waddington 384 Local Authority I(fdi) P SOU001SO Southbridge 610 Local Authority I(fdi) P SPR002SP Springfield 105 Local Authority I(fdi) P SPR003SP Springston 424 Local Authority I(fdi) P ☺ TAI009TA Tai Tapu 297 Local Authority Complied ☺ TAU011TA Taumutu 25 Local Authority Complied P ☺ TEP014TE Te Pirita 30 Local Authority Complied P ☺ UPP005UP Upper Selwyn Huts 40 Local Authority N P WES010WE West Melton 200 Local Authority Complied ☺ School Supplies BRO005SC Broadfield School 55 School BoT I(fdi) P GRE005SC Greenpark School 30 School BoT I(fdi) P ☺ LAD001SC Ladbrooks Primary School 80 School BoT Complied P WEE001SC Weedons School 165 School BoT AE P BEA003BE Bealey Hotel 30 Bealey Hotel AEI(fdi) P Other Supplies BRO010BR Broken River Ski Club 1 Broken River Ski Club I(fdi) P ☺ BUR001BU Burnham Camp 1,700 Ministry of Defence I(d) ☺ CAN003CA Canterbury Chicken 30 Canterbury Chicken Complied P ☺ FLO002FL Flock Hill Lodge & Restuarant 82 Flock Hill Station AEI(fdi) P GRA003GR Grassmere Lodge 20 Grassmere Lodge I(fdi) P ☺ IRW001IR Irwell 30 Irwell Residents Cttee. N P LIN003LI Lincoln University 2,400 Lincoln University I(fd) ☺ LOW005LO Lower Selwyn Huts 28 DOC N P MAL001DA Dalethorpe 75 Selwyn Works Ltd I(fdi) P ☺ MAL001MA Malvern Hills, Hartleys Rd 579 Selwyn Works Ltd I(fdi) P ☺ MOT009MO Motukarara Race Course 100 Motukarara Race Course N P MTC002FO Mt Cheeseman Forest Lodge 105 Mt Cheesman Ski Club Inc N P MTC002TO Mt Cheeseman Top Lodge 400 Mt Cheesman Ski Club Inc N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Selwyn District (page 86 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change MTO001AC Mt Olympus Ski Accommodation 20 Mt Olympus Ski Club N P MTO001LO Mt Olympus Ski Lodge 60 Mt Olympus Ski Club N P POR008AC Porter Heights Accommodation 30 N P POR008SK Porter Heights Skifield 450 N P ROC002RO Rocklands 75 Rocklands Services Ltd N P ROL002RO Rolleston Prison 450 Dept. of Corrections Complied TEM008TE Temple Basin Skifield 100 Temple Basin Ski Club N P WIL003WI Wilderness Lodge 40 Cora Lynn Station AEI(fdi) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Other Supplies BUR001BU Burnham Camp (TP00276) 1,700 Fluoride I ☺ BUR001BU Burnham Camp (TP00277) 1,700 Fluoride I ☺

BUR001BU Burnham Camp 1,700 Nitrate (as NO3) Complied

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Timaru District (page 87 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies GER001GE Geraldine 2,121 Local Authority Complied P ORA001OR Orari 180 Local Authority Complied P ☺ PAR002PA Pareora 480 Local Authority E P PEE001PF Peel Forest 130 Local Authority E P PLE001PP Pleasant Point 1,200 Local Authority Complied P RAN003RH Rangitata Huts 400 Local Authority AE P SEA001SE Seadown 750 Local Authority Complied P TEM001TE Temuka 3,984 Local Authority Complied P TEM002GF Geraldine Flat 200 Local Authority Complied P TEM002TE Te Moana 1,000 Local Authority I(i) P TIM001TI Timaru 26,832 Local Authority Complied WIN002WI Winchester 260 Local Authority Complied P School Supplies CLA004SC Clandeboye School 35 School BoT N (school now closed) P MIL004SC Milford School 51 School BoT N (school now closed) P WAI121SC Waihi School 100 School BoT N P Other Supplies ARO002AO Arowhenua 150 Te Runanga Arowhenua N P ARO002AR Arowhenua Marae 65 Te Runanga Arowhenua N P BAR002BA Barkers Fruit Processors 100 E P DOW001ST Sutherlands/Taiko 3,800 Downlands Ctte,Timaru DC E P DOW001WT Waitohi/Totara Valley 700 Downlands Ctte,Timaru DC E P FAR002FA Farmyard Holiday Park, Orari 90 I(fdi) P FON003TI Fonterra Timaru 250 Fonterra Co-op Group Ltd Complied (di) P GLE016GL Glenburn Camp 30 Glenburn Camp Trustees N P OAS001OA Oasis Tearooms, Rangitata 100 Oasis Tearooms I(fdi) P PEE002PE Peel Forest Camping Ground 60 DOC I(fdi) P PEE003PE Peel Forest Outdoor Pursuit C. 15 Peel Forest Outdoor Pur. I(fdi) P ☺ PPC003PA Pareora Freezing Works 400 PPCS Ltd L P RAN020RA Rangitata Rafts 20 Wakari Hills Station I(fdi) P RAN023RA Rangitata, Outside Inn 30 I(fdi) P STA004ST St Andrews 240 Downlands Ctte,Timaru DC I(d) P WOO010WO Woodbury, The Crossing Lodge 15 N (zone closed Dec 04) P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies DOW001ST Sutherlands/Taiko 3,800 Nickel From Jul ☺ DOW001ST Sutherlands/Taiko 3,800 Lead From Jul ☺ DOW001WT Waitohi/Totara Valley 700 Lead Complied ☺ TEM001TE Temuka 3,984 Nickel From Jul ☺ TEM002TE Te Moana 1,000 Lead From Jul ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waimakariri District (page 88 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies CUS001CU Cust 350 Local Authority Complied P ☺ FER002FE Fernside 200 Local Authority Complied P GAR001GA Garrymere 50 Local Authority Complied P KAI003KA Kaiapoi 8,600 Local Authority I(d) P ☺ MAN008MA Mandalea 65 Local Authority I(fdi) P MAN009MA Mandeville 650 Local Authority Complied P ☺ MAN014MA Mandeville Sports Club 100 Local Authority N P OHO001OH Ohoka 200 Local Authority Complied P OXF101OX Oxford Rural No1 200 Local Authority E P OXF102OR Oxford Rural No2 450 Local Authority Complied P OXF102TO Oxford Township 1,500 Local Authority Complied P PIN001PK Pines/Kairaki 650 Local Authority Complied (f) P POY001PO Poyntz Road 50 Local Authority Complied P RAN001RA Rangiora 12,000 Local Authority Complied P ☺ SUM001SU Summerhill, Nth Canterbury 130 Local Authority I(di) P WAI011KI Waikuku Beach 600 Local Authority Complied P WES004WE West Eyreton 70 Local Authority Complied P WOO002WO Woodend Town 1,200 Local Authority Complied (di) P School Supplies CLA003SC Clarkville School 200 School BoT Complied P SWA001SC Swannanoa School 140 School BoT Complied P TUA007SC Tuahiwi School 160 School BoT Complied P WAI080SC Waikuku School 100 School BoT Complied P Other Supplies ASH004AS Ashley Gorge 40 Ashley Gorge Complied P EYR001EY Eyre Lodge 20 Eyre Lodge EI(fdi) P ☺ GLE010GL Glentui Camp 45 Camp N P MCD001MC McDonalds Lane, Waikuku 25 N (zone now closed) P PIN002PI Pineacres Motor Park 50 Holiday Park N P RAN017RA Rangiora Holiday Park 25 Holiday Park N P 1 SPR007SP Springbank 25 Flaxton Holdings N P TUA009MA Tuahiwi Marae 300 Te Nga Tuahuriri Runanga I(fdi) P WOO005WO Woodend Beach Camping Ground 20 Camping Ground N P WOO006WO Woodend Christian Camp 60 Camping Ground N P

1 Now administered by Flaxton Holdings Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies OXF102TO Oxford Township 1,500 Lead Complied RAN001RA Rangiora 12,000 Lead Complied ☺ WAI011KI Waikuku Beach 600 Lead Complied ☺ WOO002WO Woodend Town 1,200 Nickel Complied ☺ WOO002WO Woodend Town 1,200 Lead Complied ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waimate District (page 89 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BRI004BR Briars Gully Camp 50 Local Authority N P CAN001CM Cannington/Motukaika 120 Local Authority EI(d) P CAT001CA Cattle Creek 5 Local Authority N (school now closed) P HAK002HA Hakataramea 265 Local Authority N P HOO001HW Hook/Waituna 1,200 Local Authority I(d) P LOW002LO Lower Waihao 430 Local Authority AEI(d) P OTA005OM Otaio/Makikihi 400 Local Authority AEI(d) P TEA008TE Te Akatarawa Camping Ground 100 Local Authority N P WAI031WA Waihaorunga 150 Local Authority AEI(d) P WAI032WA Waikakahi 450 Local Authority I(d) P WAI033WA Waimate 3,000 Local Authority I(d) P WAI120WA Waitangi Reserve Camp Ground 80 Local Authority N P School Supplies (No school supplies are included on the Register) Other Supplies GUN001GU Gunns Bush Camp 50 Methodist Church of NZ N P LIN007LI Lindisfarne Camp 30 Presbyterian Church Tr. N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies WAI033WA Waimate 3,000 Lead N WAI033WA Waimate 3,000 Trichloroacetaldehyde N WAI033WA Waimate 3,000 Trichloroacetic acid N WAI033WA Waimate 3,000 MAV sum ratio for HAAs N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Westland District (page 90 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ARA001AR Arahura Pa 85 Local Authority I(d) P FOX001FO Fox Glacier 235 Local Authority I(d) P FRA001FR Franz Josef 300 Local Authority I(d) P HAA001HA Haast 80 Local Authority I(d) P HAR001HA Harihari 390 Local Authority AEI(d) P HOK001HO Hokitika 3,500 Local Authority I(d) P ☺ HOK001KA Kaniere 200 Local Authority N P KUM001KU Kumara 300 Local Authority I(d) P OKA001OK Okarito 100 Local Authority N P OTI001OT Otira 100 Local Authority N P ROS001RO Ross Township 379 Local Authority I(d) P WHA002WH Whataroa 230 Local Authority I(d) P School Supplies HAA002SC Haast School 30 School BoT N P JAC001SC Jacobs River School 10 School BoT N P KOK003SC Kokatahi School 43 School BoT N P ROS001SC Ross School 30 School BoT AEI(fdi) P ☺ SOU007WE Sth Westland Area School 116 N P Other Supplies FRA003FR Franz Josef Motor Camp 25 Franz Josef Motor Camp N P HAA003HA Haast Motor Camp 25 Haast Motor Camp N P HAA004HA Haast World Heritage Hotel 50 Haast Wld Heritage Hotel N P KOK004KO Kokatahi Hotel 25 N P LAK011LA Lake Kaniere Camp Ground 25 DOC N P LAK012LA Lake Moeraki Wilderness Lodge 54 Lake Moeraki Lodge N P LAK017LA Lake Pub 80 N P MCG001MC McGuires Lodge 30 McGuires Lodge N P RUA010RU Ruatapu 130 N P TRA002TR Tramway Tavern, Taramakau 25 Tramway Tavern N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies HOK001HO Hokitika 3,500 Copper N HOK001HO Hokitika 3,500 Lead N HOK001HO Hokitika 3,500 Dichloroacetic acid N HOK001HO Hokitika 3,500 MAV sum ratio for HAAs N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Central Otago District (page 91 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ALE001AL Alexandra 5,000 Local Authority I(fd) P CLY001CL Clyde Township 1,000 Local Authority I(d) P CRO001BA Bannockburn 400 Local Authority I(d) P CRO001CR Cromwell 3,000 Local Authority I(fd) P CRO001RI Ripponvale 30 Local Authority N P ETT001ET Ettrick Rural 40 Local Authority N P NAS001NA Naseby 400 Local Authority Complied P OMA005OM Omakau 350 Local Authority I(d) P OMA005OP Ophir 50 Local Authority N P PAT003PA Patearoa 60 Local Authority I(d) P RAN002RA Ranfurly 1,000 Local Authority I(d) P ROX001RO Roxburgh 700 Local Authority I(d) P School Supplies MIL003MF Millers Flat School 48 School BoT N P PAE003PA Paerau School 10 School BoT N P POO001PO Poolburn School 39 School BoT N P TAR002TA Tarras School 27 School BoT N P Other Supplies BEC002BE Becks Hotel 25 Becks Hotel N P BRI001BR Bridge Tavern Millers Flat 27 Bridge Tavern Millers Fl N P CHA002CC Chatto Creek Tavern 25 Chatto Creek Tavern N P CLY003HR Hort. Research, Clyde 20 Hort & Food Industry N P DAN003DP Danseys Pass Coach Inn 30 Danseys Pass Coach Inn N P LAK021LA Lake Roxburgh Village 90 Electricorp Production I(d) P LAU001NI NIWA, Lauder 12 NIWA N P LAU002LA Lauder Tavern 25 Lauder Tavern N P MIL002MF Millers Flat Camping Ground 60 Millers Flat Camp Ground N P OTU002OT Oturehua Tavern 25 Oturehua Tavern N P POO002PO Poolburn Hotel 25 Poolburn Hotel N P 1 SHI001SC Shingle Creek Tavern 25 Shingle Creek Tavern N P VUL001VU Vulcan Hotel 25 St Bathans Water Supply N P WAI053WA Waipiata Tavern 25 Waipiata Tavern N P WEB002WE Weber York Subdivision 1 Marbell Ltd N P WED001WE Wedderburn Tavern 60 Wedderburn Tavern N P

1 now called Shingle Creek Café & Bar Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies RAN002RA Ranfurly (TP00240) 1,000 Chlorate N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Clutha District (page 92 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BAL001BA Balclutha 4,150 Local Authority I(d) P ☺ CLY002CL Clydevale Rural 112 Local Authority AEI(fdi) P GLE001GK Glenkenich 750 Local Authority AEI(fdi) P KAI005KA Kaitangata 864 Local Authority AEI(d) P KAI005WA Wangaloa 42 Local Authority I(d) P ☺ LAW001LT Lawrence Township 513 Local Authority AEI(d) P LIV002LI Livingstonia Park 25 Local Authority N P LIV002TK Livingstonia Park Tank 25 Local Authority N P MIL001MT Milton Town 2,000 Local Authority I(d) P ☺ MOA001MF Moa Flat Rural 451 Local Authority AEI(d) P NOR003NB North Bruce Rural 610 Local Authority I(d) P ☺ NOR003WT Waihola Township 330 Local Authority I(d) P NOR004NO North Richardson Rural 198 Local Authority I(fdi) P OWA001OW Owaka 411 Local Authority AEI(d) P POM001CL Clinton 390 Local Authority AEI(d) P POM001PR Pomahaka Rural 315 Local Authority AEI(d) P POU001AM Pounawea CG Amenities 15 Local Authority N P POU001PC Pounawea Camp Ground 15 Local Authority N P SOU002KP Kaka Point 208 Local Authority I(d) P SOU002PU South Richardson Rural 440 Local Authority I(d) P STI002SB South Bruce 194 Local Authority I(d) P STI002ST Stirling Township 331 Local Authority I(d) P ☺ TAP001TA Tapanui 795 Local Authority I(d) P TUA004TW Tuapeka West 250 Local Authority AEI(d) P WAI016B1 Balmoral 1 321 Local Authority AEI(fdi) P WAI016B2 Balmoral 2 235 Local Authority I(d) P School Supplies TAH004SC Tahakopa School 25 School BoT I(fdi) P TAI014SC Taieri Beach School 40 School BoT AEI(fdi) P Other Supplies BEA002BA Beaumont Hotel Bar 25 Beaumont Hotel N P BEA002BE Beaumont Hotel 25 Beaumont Hotel N P BLA003BG Black Gully Camping Ground 30 Black Gully Camp. Ground N P BLU001BM Blue Mountain Lumber 200 Blue Mt. Lumber AEI(fdi) P CLI004AM Clinton-Waipahi Amenities Bldg 20 Clinton-Waipahi Holdings N P CLI004CL Clinton - Waipahi Holdings 20 Clinton-Waipahi Holdings N P CLY004PR Clydevale Private 75 N P KES001KE Keswick Park Family Camp Grnd. 25 Pounawea Convention Tr. N P MAI003MA Mainholm Lodge 8 N P MCL002MC McLean Falls 30 DOC N P NUG001NU Nugget Point 30 DOC N P NZM003NZ NZMP, Stirling 75 NZMP L P ☺ PAP002KI Papatowai Motor Camp Kitchen 25 Papatowai Motor Camp N P PAP002PM Papatowai Motor Camp 25 Papatowai Motor Camp N P PAP008PA Papatowai - Picnic Point 25 DOC N P POU004PO Pounawea Christian Conv. Cntr. 170 Pounawea Convention Tr. N P PPC001PP PPCS Finegand 1,100 PPCS Finegand L P ☺ PUR006PB Purakanui Bay Scenic Reserve 20 DOC N P PUR007PU Purakanui Falls 25 DOC N P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Clutha District (page 93 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change RAE002RJ Raes Junction Hotel 30 Raes Junction Hotel N P TAH005TA Tahakopa 12 Town Scheme N P TAI004TK Taieri Mouth CG Tank 25 N P TAI004TM Taieri Mouth Camping Ground 25 I(fdi) P TAU023TA Tautuku OEC 70 Otago Youth Advent.Trust N P TAU023TK Tautuku OEC Tank 70 Otago Youth Advent.Trust N P TAW002TC Tawanui Camping Ground 20 DOC N P WAI055WF Waipori Falls Hydro Village 35 N P WIL001WI Willsher Bay Rec. Reserve 3 DOC N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies BAL001BA Balclutha (TP00272) 4,150 Fluoride ACL GLE001GK Glenkenich 750 Trichloroacetaldehyde N GLE001GK Glenkenich 750 Dichloroacetic acid N GLE001GK Glenkenich 750 Trichloroacetic acid N GLE001GK Glenkenich 750 MAV sum ratio for HAAs N LAW001LT Lawrence Township 513 Nickel N LAW001LT Lawrence Township 513 Cadmium N LAW001LT Lawrence Township 513 Lead N MIL001MT Milton Town 2,000 MAV sum ratio for HAAs N NOR003NB North Bruce Rural 610 Trichloroacetaldehyde N NOR003NB North Bruce Rural 610 Dichloroacetic acid N NOR003NB North Bruce Rural 610 Trichloroacetic acid N NOR003NB North Bruce Rural 610 MAV sum ratio for HAAs N TAP001TA Tapanui 795 Trichloroacetaldehyde N Other Supplies PPC001PP PPCS Finegand 1,100 Lead I

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Dunedin City (page 94 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies BLU004BL Blueskin Road 99 Local Authority N P DUN001BO Booth Road, Dunedin 30,841 Local Authority Complied P ☺ DUN001GI Green Island 6,409 Local Authority I(i) P ☺ DUN001LL Low Levels/Peninsula, Dunedin 33,728 Local Authority Complied P ☺ DUN001MH Maori Hill 12,441 Local Authority Complied P ☺ DUN001PC Port Chalmers 2,469 Local Authority Complied P ☺ DUN001WI Wingatui, Dunedin 3,293 Local Authority I(i) P ☺ MOS001MO Mosgiel 9,200 Local Authority I(i) ☺ OUT001OU Outram Township 844 Local Authority I(i) P ☺ ROC001RO Rocklands/Shannon/Pukerangi 40 Local Authority Complied P ☺ WAI014WA Waitati Township 555 Local Authority Complied P ☺ WAI015WK Waikouaiti/Karitane/Seacliff 1,600 Local Authority Complied ☺ WAR002WA Warrington Township 1,700 Local Authority Complied P ☺ WES002WE West Taieri Scheme 450 Local Authority Complied P ☺ School Supplies LEE002LS Lee Stream School 55 School BoT EI(fdi) P PUR005PU Purakanui School 30 School BoT I(fdi) P STR002ST Strath-Taieri School 90 School BoT I(di) P Other Supplies CLA002CJ Clarks Junction Hotel 25 Clarks Junction Hotel I(fdi) P LAR001LA Larnach Castle 60 N P NAT002NA Natures Wonders, Otago 50 N P ORO002OR Orokonui Rest Home/Holiday Par 80 Orokonui Rest Home N P OTA017OT Otago Bowling Club 400 Otago Bowling Club N P OTA018OT Otakou Marae 50 Te Runanga Otakou N P ROY001RO Albatross Centre 150 Otago Peninsula Trust N P SPE001SP Speights Public Water Supply 450 Lion Nathan I(di) P WAI052WA Waiora Scout Camp 35 Scout Camp Association AEI(di) P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Dunedin City (page 95 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies DUN001BO Booth Road, Dunedin (TP00233) 30,841 Fluoride N DUN001BO Booth Road, Dunedin (TP00234) 30,841 Fluoride Complied ☺ DUN001BO Booth Road, Dunedin 30,841 Lead Complied ☺ DUN001GI Green Island (TP00236) 6,409 Fluoride Complied ☺ DUN001GI Green Island 6,409 Lead Complied DUN001GI Green Island 6,409 Trichloroacetaldehyde AC DUN001GI Green Island 6,409 MAV sum ratio for HAAs AC DUN001LL Low Levels/Peninsula, Dunedin (TP00234) 33,728 Fluoride Complied ☺ DUN001LL Low Levels/Peninsula, Dunedin (TP00236) 33,728 Fluoride Complied ☺ DUN001LL Low Levels/Peninsula, Dunedin (TP00238) 33,728 Fluoride N DUN001MH Maori Hill (TP00233) 12,441 Fluoride N DUN001MH Maori Hill (TP00234) 12,441 Fluoride Complied ☺ DUN001PC Port Chalmers (TP00233) 2,469 Fluoride N DUN001PC Port Chalmers (TP00234) 2,469 Fluoride Complied ☺ DUN001WI Wingatui, Dunedin (TP00234) 3,293 Fluoride Complied ☺ DUN001WI Wingatui, Dunedin 3,293 Lead Complied DUN001WI Wingatui, Dunedin 3,293 Trichloroacetaldehyde Complied DUN001WI Wingatui, Dunedin 3,293 Dichloroacetic acid Complied DUN001WI Wingatui, Dunedin 3,293 Trichloroacetic acid AC DUN001WI Wingatui, Dunedin 3,293 MAV sum ratio for HAAs AC WAI014WA Waitati Township 555 Dichloroacetic acid Complied ☺ WAI014WA Waitati Township 555 Trichloroacetic acid AC WAI014WA Waitati Township 555 MAV sum ratio for THMs Complied WAI014WA Waitati Township 555 MAV sum ratio for HAAs AC WAI015WK Waikouaiti/Karitane/Seacliff 1,600 Trichloroacetaldehyde AC

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Gore District (page 96 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies GOR001EA East Gore 1,665 Local Authority Complied P GOR001WE West Gore 6,700 Local Authority Complied P KAI010KA Kaiwera 60 Local Authority I(d) P MAT002MA Mataura 2,000 Local Authority Complied OTA004OT Otama 300 Local Authority I(d) P OTI002OT Otikerama 150 Local Authority I(d) P School Supplies (No school supplies are included on the Register) Other Supplies (No other supplies are included on the Register)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies GOR001EA East Gore 1,665 Lead I ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Invercargill City (page 97 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies INV001BL Bluff 2,956 Local Authority Complied P INV001IN Invercargill City 47,500 Local Authority Complied P 1 TIS001SC Tisbury School 90 Local Authority I(d) P ☺

1 now on INV001IN supply School Supplies MYR001SC Myross Bush School 145 School BoT AEI(d) P OTA009SC Otatara School 280 School BoT I(d) Other Supplies NZA001NZ NZAS Tiwai Point 900 NZ Aluminium Smelters I(d)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies INV001BL Bluff (TP00079) 2,956 Fluoride Complied INV001IN Invercargill City (TP00079) 47,500 Fluoride Complied TIS001SC Tisbury School (TP00079) 90 Fluoride Complied Other Supplies NZA001NZ NZAS Tiwai Point (TP02014) 900 Arsenic I ☺ NZA001NZ NZAS Tiwai Point 900 Lead I ☺ NZA001NZ NZAS Tiwai Point 900 Trichloroacetaldehyde I ☺ NZA001NZ NZAS Tiwai Point 900 Dichloroacetic acid I ☺ NZA001NZ NZAS Tiwai Point 900 MAV sum ratio for THMs I ☺ NZA001NZ NZAS Tiwai Point 900 MAV sum ratio for HAAs I ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Queenstown Lakes District (page 98 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies ARR001AR Arrowtown 1,400 Local Authority Complied P ART001AP Arthurs Point 300 Local Authority Complied GLE003GL Glenorchy 200 Local Authority Complied P ☺ GLE014GL Glendhu Bay Motor Camp 500 Local Authority N P HAW002HA Hawea 400 Local Authority Complied P LAK003LH Lake Hayes 300 Local Authority Complied P LUG001LU Luggate 125 Local Authority Complied P ☺ QUE001KE Kelvin Heights 2,500 Local Authority Complied P QUE001QU Queenstown 8,000 Local Authority I(f) P WAN002AL Albert Town 250 Local Authority Complied P WAN002WA Wanaka 2,750 Local Authority Complied P ☺ School Supplies HAW004SC Hawea Flat School 50 School BoT I(fdi) P MAK007SC Makarora School 16 School BoT I(fdi) P Other Supplies CAM008CA Camphill Estate 132 Camphill Estate Utilitie N P CAR005CA Cardrona Township 150 Cardrona Water Co. Ltd Complied P DAL003DA Dalefield 300 Dalefield Water Sup. Inc AE P ☺ KIN008KI Kingston Motels & Holiday Park 25 Kingston Motels Complied (fdi) P LOA001LO Loach Hill 50 Loach Rd Utility Society N P LON005LO Longrass Estate 60 Longrass Estate Water Gr N P MAK008MA Makarora Tourist Centre 300 Makarora Tourist Centre Complied (d) P ☺ PLE003PL Pleasant Lodge Holiday Park 400 N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies QUE001QU Queenstown 8,000 Nickel Complied ☺ QUE001QU Queenstown 8,000 Lead Complied ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Southland District (page 99 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies EAS002EB Eastern Bush 90 Local Authority EI(d) P EAS002OF Otahu Flat 90 Local Authority I(d) P EDE001ED Edendale 50 Local Authority I(d) P ☺ LUM001BA Lumsden/Balfour Rural 187 Local Authority I(d) P LUM001LU Lumsden 450 Local Authority I(d) P MAN006MA Manapouri 240 Local Authority I(d) P MOS002MO Mossburn 240 Local Authority I(d) P MOS004MO Mossburn Camping Ground 5 Local Authority N (school closed 2004) P OHA009NI Nightcaps 342 Local Authority I(d) OHA009OH Ohai 399 Local Authority I(d) OHA009WA Wairio 80 Local Authority I(d) ORA003OR Orawia 20 Local Authority EI(d) P ☺ OTA001OT Otautau 729 Local Authority I(d) P RIV001RI Riverton 1,656 Local Authority I(d) P TEA002TE Te Anau 1,857 Local Authority I(d) P TUA001TU Tuatapere 681 Local Authority I(d) P WIN001WI Winton 2,100 Local Authority I(d) P School Supplies BLA004SC Blackmount School 17 School BoT I(fdi) P BRY002SC Brydone School 11 School BoT E P DAC001SC Dacre School 40 School BoT Complied P DIP001SC Dipton Primary School 82 School BoT Complied P GAR002SC Garston School 31 School BoT E P GLE009SC Glenham School 32 School BoT I(fdi) P GOR002SC Gorge Road School 65 School BoT Complied P HAL003SC Halfmoon Bay School 19 School BoT E P HED001SC Heddon Bush School 56 School BoT Complied P HED002SC Hedgehope School 39 School BoT Complied P HIL001SC Hillside Primary School 56 School BoT E P ISL002SC Isla Bank School 33 School BoT Complied P ☺ LIM001SC Limehills School 135 School BoT Complied P LOC001SC Lochiel School 95 School BoT E P MAR009SC Mararoa School 60 School BoT Complied P MEN001SC Menzies College, Wyndham 420 School BoT Complied P RIM001SC Rimu School 136 School BoT Complied RIV009SC Riversdale School 119 School BoT Complied P SOU008SC Southland Rural Primary School 72 School BoT Complied P TET001SC Te Tipua School 57 School BoT Complied P THO001SC Thornbury School 47 School BoT Complied P TOK007SC Tokanui School 96 School BoT E P TUT001SC Tuturau School 45 School BoT E P WAI070SC Waimahaka School 32 School BoT Complied P ☺ WAI076SC Waikaia School 45 School BoT Complied P WAI078SC Waianawa School 75 School BoT E P WAL001SC Wallacetown School 46 School BoT Complied P ☺ WOO003SC Woodlands School 67 School BoT Complied P WYN001SC Wyndham Primary School 127 School BoT Complied P

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Southland District (page 100 of 102)

Zone Code Zone Name Pop Water Supplier Compliance Change Other Supplies ALL002LO Alliance Lorneville 2,200 Alliance Group Ltd L ALL003MA Alliance Makarewa 70 Alliance Group Ltd L BOR001BO Borland Lodge 24 Sthld Yth Advent. Trust N P MON002MO Monowai Village 27 Powernet N P

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies LUM001LU Lumsden 450 Nickel N OTA001OT Otautau 729 Lead N TEA002TE Te Anau 1,857 Lead N TUA001TU Tuatapere 681 Nickel N TUA001TU Tuatapere 681 Lead N WIN001WI Winton 2,100 Nickel N WIN001WI Winton 2,100 Copper N WIN001WI Winton 2,100 Lead N Other Supplies ALL002LO Alliance Lorneville 2,200 Aggressiveness N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waitaki District (page 101 of 102)

Microbiological Monitoring and Compliance Zone Code Zone Name Pop Water Supplier Compliance Change Local Authority Supplies AWA001AW Awamoko 160 Local Authority Complied P DUN002DU Dunback Rural 270 Local Authority Complied (d) P DUN003DU Dunrobin 54 Local Authority AE P DUN004DU Duntroon 140 Local Authority AEI(d) P ENF001EN Enfield 450 Local Authority Complied P FAL001FA Falstone Camp-Lake Benmore 30 Local Authority AE P GOO001GO Goodwood 400 Local Authority Complied P HAM002HA Hampden 315 Local Authority AE P HAM002MO Moeraki 350 Local Authority AE P HER001HE Herbert 470 Local Authority Complied P KAK001KA Kakanui 510 Local Authority Complied P KAU001KA Kauru Hill 180 Local Authority E P KUR001KU Kurow Township 450 Local Authority Complied P ☺ LOW004LO Lower Waitaki 360 Local Authority Complied P ☺ OAM001NE North End Oamaru 5,000 Local Authority Complied P OAM001RR Reservoir Road, Oamaru 900 Local Authority Complied P ☺ OAM001SH South Hill, Oamaru 4,587 Local Authority Complied P ☺ OHA005OH Ohau Alpine Village 40 Local Authority AEI(f) P ☺ OMA001OM Omarama Town 453 Local Authority E P OTE001OT Otematata Hydro Village 490 Local Authority AE P OTE002OT Otekaieke Rural 30 Local Authority AEI(d) P PAL002PA Palmerston Town 800 Local Authority Complied P PAR004PA Parsons Rock Camp 80 Local Authority AE P SAI001SA Sailors Cutting Camp 80 Local Authority AE P STO001ST Stoneburn 80 Local Authority AE P TOK003TL Tokarahi/Livingstone 600 Local Authority Complied P ☺ WES003WE Weston 1,750 Local Authority E P WIN004WI Windsor 180 Local Authority AE P School Supplies FIV001FI Five Forks School 50 School BoT Complied P MAC002MA Macraes Moonlight School 30 School BoT Complied P Other Supplies BEN001BE Benmore Wildlife Reserve 30 Electricorp Production From Oct P ☺ DAN002DA Danseys Camp 30 Danseys Camp E P LAK006LA Lake Ohau C Powerstation/Camp 30 Electricorp Production From Oct P LAK023LA Lake Benmore Holiday Park 30 AE P MAC001MA Macraes Mine 80 Complied P MAC004MA Macraes Flat, Stanley's Hotel 40 Stanley's Hotel Complied P MAH001MA Maheno 280 AEI(fi) P ☺ MAK002MA Makareao Lime Works 25 E P OHA006OH Ohau Lodge 50 Complied P OHA007OH Ohau Ski Field 10 N P PUK004PU Pukeuri 120 Alliance Freezing Co. Complied P ☺ REI001RE Reidston 110 Reidston Water Supply AE P WAI039WA Waitaki Mouth Kaik Reserve 10 Waitaki Mouth Kaik Reser AE P WAI040WA Waitaki Mouth Motor Camp 10 Waitaki Mouth Motor Camp From Oct P ☺

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 1. Waitaki District (page 102 of 102)

Chemical Monitoring and Compliance Zone Code Zone Name Pop P2 Determinand Compliance Change Local Authority Supplies KAK001KA Kakanui 510 Lead N OAM001SH South Hill, Oamaru 4,587 Trichloroacetaldehyde N PAL002PA Palmerston Town 800 Nickel N PAL002PA Palmerston Town 800 Cadmium N PAL002PA Palmerston Town 800 Lead N

Annual Review of Drinking-Water Quality in New Zealand 2004 APPENDIX 2. (page 1 of 3)

Supplies that ceased to be monitored in 2004. Distribution Zone Zone Code Water Supplier Pop Northland - Far North District Kokohuia Marae # KOK005KO Marae Committee 80 Mahuri Marae MAH011MA Marae Committee 90 Ngaiotonga School NGA013SC School BoT 25 Peria School PER001SC School BoT 120 Whirinaki Maori Committee WHI012WH Marae Committee 250 Northland - Kaipara District Gateway North Motor Lodge GAT001GA 30 Moir's Point Christian Camp # MOI001MO Camp Trust Board 90 Pouto School POU002SC School BoT 40 Tinopai School # TIN003SC School BoT 50 Northland - Whangarei District Te Horo School # TEH002TE School BoT 74 Auckland - Rodney District Building Blocks Childcare Cntr BUI001BU Local Authority 50 Lifeway College LIF002LI Lifeways Ministries Trust 300 Mahurangi Christian School MAH008SC School BoT 100 Pah Farm Fishing Lodge # PAH002PF Pah Farm (Te Pa Ika Nui) 3 Pakiri Primary School PAK011SC School BoT 9 Redhills RED002RE Local Authority 80 Tauhoa Primary School # TAU010TA School BoT 35 Auckland - Manukau City Whitford Pre-School # WHI004SC Pre-School Managers 80 Whitford Settlers Cafe WHI005WH Cafe Owners 90 Auckland - Auckland City Molly Malones # MOL002MO 55 Waiheke Community Rec Centre WAI163WA Waiheke Rec Centre Trust 200 Waiheke Is, Salvage Restaurant WAI142WA 25 Auckland - Franklin District Big Bay Motor Camp # BIG002BI Big Bay Motor Camp 2 Orua Motor Camp # ORU003OR Orua Motor Camp 2 Auckland - Papakura District Hunua Playcentre # HUN006HU Counties Playcentre Ass. 73 Auckland - Waitakere City Piha Camping Ground PIH002PC Local Authority 4 Waikato - Waikato District Te Kowhai School TEK020SC School BoT 190 Te Mata School TEM010SC School BoT 60 Waikato - Ruapehu District Matiere School # MAT036SC School BoT 46 Waikato - Thames Coromandel District Kopu Sawmill KOP003KO Carter Holt Harvey 220 APPENDIX 2. (page 2 of 3)

Supplies that ceased to be monitored in 2004. Distribution Zone Zone Code Water Supplier Pop Waikato - Waitomo District Oparure School OPA004SC School BoT 30 Rangitoto School RAN022SC School BoT 38 Taharoa Village # TAH002TA BHP-NZ Steel Mining Ltd 150 Tauranga - Western Bay of Plenty District Kaimai School KAI018SC School BoT 77 Katiphil Factory KAT001KA Katiphil Food Factory 2 Rotorua - Taupo District Hautu Prison HAU005HA Corrections NZ 200 Lake Taupo Christian Camp LAK015LA Lake Taupo Camp 25 Lake Taupo M.Inn,Lakeside Mot. LAK014LA Lake Taupo M.Inn 24 Marotiri School MAR016SC School BoT 120 Motuoapa Lodge MOT018MO Motuoapa Lodge 40 Tauranga/Taupo School TAU012SC School BoT 95 Rotorua - Whakatane District Minginui MIN001MI Private 300 Rotorua - Rotorua District Waiotapu School Camp WAI029WA School Camp Trust 50 Hawke's Bay - Central Hawkes Bay District Flemington School # FLE001SC School BoT 73 Pukehou School PUK012SC School BoT 85 Tikokino School TIK002SC School BoT 77 Wazz Macs Camp WAZ001WA 120 Hawke's Bay - Hastings District Church at Riverbend CHU002RI HB Redemption Trust 20 Maraekakaho School MAR010SC School BoT 135 Ormile Lodge ORM003OR Ormile Lodge Trust 10 Pakowhai School PAK007SC School BoT 50 Sileni Estates Winery SIL001SI Sileni Estate Ltd 40 Te Hauke School TEH005SC School BoT 32 Twyford School TWY001SC School BoT 190 Hawke's Bay - Wairoa District Nuhaka School # NUH001SC School BoT 136 Taranaki - New Plymouth District Huirangi Primary School # HUI002SC School BoT 70 Wanganui - Rangitikei District Turakina School TUR002SC School BoT 92 Manawatu - Manawatu District Glen Oroua School GLE007SC School BoT 43 Wairarapa - Masterton District Mauriceville School MAU005SC School BoT 40 Wairarapa - South Wairarapa District South Featherston School SOU006SC School BoT 60 APPENDIX 2. (page 3 of 3)

Supplies that ceased to be monitored in 2004. Distribution Zone Zone Code Water Supplier Pop Hutt Valley - Porirua City The Lodge at the Inlet THE004TH The Lodge at the Inlet 90 Marlborough - Marlborough District Raetihi Lodge, Double Bay # RAE003RA Raetihi Lodge 10 Trout Hotel, Canvastown TRO002TR Trout Hotel 26 Tuamarina School TUA006SC School BoT 100 West Coast - Westland District Okarito OKA001OK Local Authority 100 Canterbury - Ashburton District Lowcliffe School LOW007SC School BoT 34 Canterbury - Hurunui District Staging Post # STA006ST Staging Post 5 Canterbury - Kaikoura District Kekerengu Restaurant KEK001RE Kekerengu Community 300 Canterbury - Selwyn District Porter Heights Skifield POR008SK 450 Canterbury - Christchurch City Canterbury Christian College CAN004CA School BoT 150 Marshlands Primary School MAR008SC School BoT 220 Ouruhia Primary School OUR001SC School BoT 84 Spencer Holiday Park SPE002SP 30 Wainoni Primary School WAI060SC School BoT 130 Yaldhurst Primary School YAL001SC School BoT 140 South Canterbury - Timaru District Waihi School # WAI121SC School BoT 100 South Canterbury - Waimate District Hakataramea # HAK002HA Local Authority 265 South Canterbury - Mackenzie District Raincliff Camp RAI005RA Anglican Church 100 Otago - Queenstown Lakes District Loach Hill LOA001LO Loach Rd Utility Society 50 Otago - Central Otago District Becks Hotel BEC002BE Becks Hotel 25 Ettrick Rural # ETT001ET Local Authority 40 Lauder Tavern LAU002LA Lauder Tavern 25 Paerau School PAE003PA School BoT 10 Tarras School TAR002TA School BoT 27

# Zones that were known to have excessive faecal contamination in 2003 APPENDIX 3. (page 1 of 1)

Supplies that were deemed to comply in 2004 and 2003.

Zone Code Zone Name Pop Water Supplier WAI138WA Wainui 320 Local Authority MAK008MA Makarora Tourist Centre 300 Makarora Tourist Centre NGU003SC Ngutunui School 15 BOT WHA005WH Whakatane 15,000 Local Authority APPENDIX 4. (page 1 of 1)

Anomalies between monitoring and surveillance results

Distribution Zone Zone Code Pop. Water Supplier LA Area Waitaki Mouth Motor Camp WAI040WA 10 Waitaki Mouth Motor Camp Waitaki District Isla Bank School ISL002SC 33 School BoT Southland District Limehills School LIM001SC 135 School BoT Southland District