2015 Summary Report

Britannia Water Purification Plant & Distribution System

1.0 General overview

The City of Ottawa provides treatment, storage, and distribution of high quality drinking water to approximately 874,000 residents and industrial water users. The central water supply includes the Britannia and Lemieux Island Water Purification Plants which utilize the Ottawa River for their source water. Treated drinking water from both plants is distributed through a large network of water mains, pumping stations, reservoirs, and elevated tanks including a direct water supply to Russell Township. Outside of the central supply, the City operates (5) well systems that provide drinking water to rural communities located in Carp, Richmond (Kings Park subdivision), Munster, Greely (Shadow Ridge subdivision), and Vars.

This report deals specifically with the production and distribution of drinking water from the Britannia Water Purification Plant (WPP). The report must review regulatory requirements, standards and drinking water license requirements as a means of demonstrating compliance with drinking water regulations and the provision of safe drinking water during 2015.

The report has been prepared in fulfillment of Schedule 22 of O.Reg.170/03, which requires that a Summary Report be prepared for each water supply system and given to the members of municipal council by March 31 of the following year. The report covers the period from January 1st, 2015 to December 31st, 2015.

2.0 Drinking water regulations

The Safe Drinking Water Act (2002) was created in response to the events in Walkerton, as a means of ensuring the provision of safe drinking water throughout the province. Under the authority of the Safe Drinking Water Act, several key regulations have been defined in the last number of years:

O.Reg.170/03 – Drinking Water Systems Regulation O.Reg.169/03 – Ontario Drinking Water Quality Standards O.Reg.248/03 – Drinking Water Testing Services O.Reg.128/04 – Certification of Drinking Water Systems Operators O.Reg.188/07 – Licensing of Municipal Drinking Water systems O.Reg.170/03 (Appendix) – Procedure for Disinfection of Drinking Water in Ontario O.Reg.170/03 (Sch.15.1) – Community Lead Testing Program

These regulations cover all aspects of municipal water supply, including treatment requirements, quality standards, test frequency, operations and maintenance, operator qualifications, laboratory testing, inspections, reports, and public notification.

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3.0 System approval and accreditation

In addition to the regulations noted above, the Ministry of Environment and Climate Change (MOECC) requires all owners of municipal drinking water systems to obtain a Municipal Drinking Water License (MDWL) for each drinking water system. These licenses are comprised of five elements, as listed below:

• Permit To Take Water • Drinking Water Works Permit • Operational Plan • Accredited Operating Authority • Financial Plan

The City of Ottawa is the Operating Authority for the Britannia Water Purification Plant and was awarded its ‘Full Scope – Entire DWQMS’ accreditation on October 3rd, 2011, with re- accreditation awarded on September 4th, 2014 by an independent third party audit, that its Operational Plan meets the requirements of the Drinking Water Quality Management Standard and is managed in a planned and systematic manner.

In 2012, 2013 and 2015 the City has undergone annual surveillance audits that were completed by the accreditation body, NSF International Strategic Registrations. All surveillance audits resulted in zero findings of non-conformance. The audit findings identified that Ottawa’s DWQMS was effectively maintained and continuous improvement of the system was evident.

4.0 Annual inspection

The Ministry of Environment and Climate Change (MOECC) carried out its annual inspection of the Britannia Water Purification Plant on February 3rd, 2016. The detailed inspection focused on regulatory compliance, plant operations, data records, operator certification, record keeping, and management practices for the period January 1st to December 31st, 2015. The inspection report is pending.

5.0 Compliance with drinking water regulations

During 2015, the Britannia Water Purification Plant and Distribution System were compliant with drinking water regulatory requirements, with any exceptions noted below in section 6.0. The table in Appendix I demonstrates compliance by listing all key regulatory requirements for drinking water in comparison to the operational results achieved during 2015. The table illustrates both the comprehensive nature of provincial requirements and the diligence of drinking water staff in complying with drinking water regulations.

Page | 2 Britannia Water Purification Plant – 2015 Summary Report 6.0 Items of non-compliance

During 2015, there were (4) incidents of non-compliance as noted below:

Chlorine residual measured and recorded for every bacteriological sample: Ontario regulation 170/03 states that the chlorine residual concentration must be measured and recorded for every bacteriological sample taken. Usually, the operator records the chlorine residual on the laboratory sample submission form. During 2015, there were 8 out of 6,239 distribution water samples taken for bacteriological testing in which the operator failed to record the chlorine residual value. As a result, operating procedures have been reviewed and a new field log sheet has been initiated to ensure chlorine residual levels are documented. Although these instances are deemed to be non-compliance events, they do not represent a risk to safe drinking water.

Distribution system supervised by certified operators: during 2015, there was one instance where a certified operator did not maintain direct supervision over the installation and connection of sections of pre-disinfected watermain. This non-compliance event was reviewed with the MOECC. There was not a risk to safe drinking water as these sections of watermain were not in service at the time, and mitigative actions were taken prior to placing the watermain in service.

Britannia Filter #12 turbidity readings: Ontario regulation 170/03 states that filter effluent turbidity must be monitored continuously with an on-line analyzer, or with readings taken every 15 minutes. On January 28th, 2015 a plant operator noticed that Filter #12 had no on-line turbidity readings for a period of 3.5 hours. The operator immediately shut down Filter #12 until instrument technicians could address the problem. The root cause of the failure was found to be a loose wire in the analyzer connection. Subsequently, the connection was fixed and a site contractor was asked to carefully check each of the turbidity analyzer connections recently completed as part of major filter re-construction. The local district office of the MOECC was notified of the non-compliance. While the incident represents non-compliance, there was no adverse affect to the quality of treated drinking water. The operation of the filter remained steady during the 3.5 hour period and final plant effluent turbidity remained low at 0.06 NTU or below.

Britannia Filter #17 turbidity readings: on February 14th, 2015 a plant operator noticed that Filter #17 had no on-line turbidity readings from a period of 30 minutes. The operator immediately shut down Filter #17 and reset the turbidity analyzer. Once it was confirmed the turbidity analyzer was operating, the operator put Filter #17 back into production. The operation of the filter remained steady during the 30 minute period and final plant effluent turbidity remained low at 0.04 NTU.

7.0 Summary of annual water production

The Britannia Water Purification Plant treated and distributed an average of 124.3 Million Liters per day (ML/d), which represents 35% of the approved plant capacity. The daily flow rates ranged from a minimum of 40.9 (ML/d) to a maximum of 196.0 (ML/d). The table and graph

Page | 3 Britannia Water Purification Plant – 2015 Summary Report below summarize the 2015 water production by month. The 2015 flow rates were within the approved capacity of the treatment system, which is 360.0 ML/d.

Britannia WPP daily water production flow rates by month during 2015

Average Daily Minimum Daily Maximum Daily Month Flow Rate Flow Rate Flow Rate (ML/d) (ML/d) (ML/d)

January 133.4 82.5 194.7 February 136.2 106.5 178.3 March 114.1 77.2 129.9 April 102.5 57.5 114.8 May 120.3 96.3 151.6 June 126.0 82.8 174.4 July 136.1 97.1 166.2 August 133.1 86.3 178.8 September 128.6 75.5 162.3 October 113.2 40.9 127.8 November 124.4 103.5 196.0 December 124.9 109.0 132.2

Year End 124.3 40.9 196.0 (Average) (Min. Day) (Max. Day)

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The combined average water production rate for the Britannia and Lemieux Island plants together was 273.8 (ML/d). This flow rate for the City of Ottawa central water supply represents <1% of the Ottawa River flow (approximately 0.25 %).

8.0 Water quality report

The Ontario Drinking Water System Regulation O.Reg.170/03 defines requirements for water quality sampling and testing based on categories of test parameters: microbiological, operational, inorganic, and organic. In order to fully characterize drinking water quality, the City of Ottawa conducts additional testing for hundreds of trace organic, pharmaceutical, and radiological substances. The table attached in Appendix II summarizes the test results for Britannia treated water, which represents water as it enters into the distribution system. It is important to note that in addition to treated water, water quality testing is performed for raw (untreated) water, treatment process, and approximately (60) sample locations throughout the distribution system (e.g. pump stations, reservoirs, schools, fire halls, etc.).

For comparison against the water quality results, the Ontario Drinking Water Standards (O.Reg.169/03) are presented in the right column of the table to indicate the maximum acceptable concentration (MAC) for various substances in drinking water. These standards are based on Health Canada’s Guidelines for Canadian Drinking Water Quality. The MAC concentration limits are set at levels that are deemed to be protective of public health for daily water consumption over a lifetime.

The results demonstrate that drinking water supplied from the Britannia Water Purification Plant and Distribution System was of high quality and met Ontario Drinking Water Standards (O.Reg.169/03) and the Health Canada Guidelines for Canadian Drinking Water Quality.

9.0 Summary

The operation of the Britannia Water Purification Plant and Distribution System complied with Ontario requirements of drinking water regulations, permits, and licenses. The quality of treated and distributed drinking water remained high during 2015 and met all federal and provincial standards for safe drinking water.

Page | 5 Britannia Water Purification Plant – 2015 Summary Report Appendix I

Britannia Water Purification Plant & Distribution System Regulatory requirements and compliance with Safe Drinking Water Act (2002)

Drinking water system: Britannia W.P.P. and Central Distribution System Source Water: Ottawa River Waterworks No.: 220003154 Date of report: March 31, 2016

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Regulatory Results p Lead u g m

No. Description Legislation Requirement Achieved e Person o R C

Water Treatment T1 Raw (river) water PTTW #8782- Raw water flow must be <360 ML/d Avg. intake flow = 141.3 ML/d yes J.Guthmann taking 8AEJKS Max. daily flow = 210.9 ML/d

T2 Raw (river) water PTTW #8782- Daily raw water taking flow rates for Daily water taking data submitted to yes J.Guthmann taking 8AEJKS previous year must be submitted to MOECC Water Taking and Reporting MOECC by March 31 System by March 31

T3 Treated water MDWL #008- Treated water flow must be <360 Average daily flowrate = 124.3 ML/d yes J.Guthmann production 102 ML/d Maximum daily flowrate = 196.0 ML/d Sch.(C) 1.0

T4 Treatment O.Reg.170/03 Treatment must include chemically Chemically assisted filtration treatment yes J.Guthmann barriers Sch.1.4 assisted filtration was provided at all times during the year

T5 Treatment O.Reg.170/03 Treatment barriers must be During 2015, all treatment barriers yes J.Guthmann barriers Sch.1.2 operated: (i) whenever water is were fully operational whenever the being supplied, (ii) in accordance with treatment plant was in production the Procedure for Disinfection, & (iii) to achieve the design capability

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No. Description Legislation Requirement Achieved e Person o R C T6 Pathogen MDWL #008- Treatment must be designed and Pathogen removal/inactivation targets yes J.Guthmann removal 102 operated to achieve: were met at all times during the year Sch.(E) 1.0 3-log (99.9%) reduction of Crypto 4- log (99.99%) reduction of Giardia 5- log (99.999%) reduction of Virus

3 T7 Filter turbidity O.Reg.170/03 Each filter must operate with a Each of the (18) filters were monitored no J.Guthmann monitoring Sch.7.3 dedicated continuous analyzer to by a continuous turbidity analyzer, monitor filter effluent turbidity except as noted (see NOTE 3).

T8 Filter turbidity O.Reg.170/03 Filter effluent turbidity >99% of the monthly filter effluent yes J.Guthmann performance Procedure for measurements must be <0.3 NTU in turbidity readings were <0.3 NTU Disinfection 95% of monthly readings

T9 Secondary O.Reg.170/03 Secondary disinfection equipment Secondary disinfection levels in treated yes P.Wilson disinfection Sch.1.5 must be capable of providing 1.0 water ranged from 1.50 mg/L-2.49 mg/L combined chlorine (chloramine) mg/L throughout the distribution system

T10 Continuous O.Reg.170/03 Must provide minimum testing In 2015, (18) filter effluent turbidity, (4) yes J.Guthmann analyzers Sch.6.5, frequency, alarm settings, operator primary disinfection chlorine analyzers Sch.7.2 response, data review within 72 and (2) total chlorine analyzers were hours, chlorine at CT outlet, operated to meet requirements calibration

T11 Chemicals and MDWL #008- Chemicals and materials in contact NSF certification achieved for all (7) yes J.Guthmann materials 102 with drinking water must meet treatment chemicals Section 14.0 standards NSF/60, NSF/61, & NSF 372

T12 Waste & residual MDWL #008- Total suspended solids <25 mg/L During 2015 the average concentration yes J.Guthmann management 102 (annual average); Total chlorine of total suspended solids was 13.4 Sch.(C) 1.5 <0.02 mg/L (maximum) mg/L and total chlorine was <0.02 mg/L

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Regulatory Results p Lead u g m

No. Description Legislation Requirement Achieved e Person o R C T13 Calibration of MDWL #008- Annual calibration for raw water and Raw and treated water flow meters yes J.Guthmann flow measuring 102 treated water flow meters were calibrated during 2015 devices Sch.(C) 2.0

Water Quality W1 Microbiological O.Reg.170/03 Raw water – weekly TC/EC (n=52) Raw water – TC/EC (n=365) yes P.Wilson sampling & Sch.10.2, 10.3, Treated water – weekly TC/EC (n=52) Treated water – TC/EC (n=1443) testing & 10.4 Treated water – weekly HPC (n=52) Treated water – HPC (n=202) Distrib. – 186/month TC/EC (n=2232) Distrib. – TC/EC (n=6239) Distrib. – 46/month HPC (n=558) Distrib. – HPC (n=2930)

W2 Chemical O.Reg.170/03 Inorganics (9 trace metals) – 1/year Inorganics – in 2015, 12 samples were yes P.Wilson sampling & Sch.13.2, Organics (56 chemicals) – 1/year analyzed for trace metals testing Sch.13.3 Organics – In 2015 , 4 samples were analyzed for trace organics

W3 Trihalomethanes, O.Reg.170/03 trihalomethanes – 4/year (dist.) trihalomethanes – in 2015, 34 samples yes P.Wilson nitrate, nitrite, & Sch.13.6, 13.7, nitrate/nitrite – 4/year were collected sodium & 13.8 sodium – 1 sample every 5 years nitrate/nitrite – in 2015, collected on a monthly basis 12/year sodium – in 2015, there were 12 samples taken W4 Chlorine residual O.Reg.170/03 At least 7 samples per week, either Met through operation of (3) yes P.Wilson testing in Sch.7.2.3 daily or 4/3 at least 48 hours apart continuous chlorine analyzers in distribution with multiple locations distribution system: Barrhaven Res., system Ottawa South PS, Leitrim PS

1 W5 Chlorine readings O.Reg.170/03 Chlorine residual must be measured 1,443 treated and 6,239 distribution no P.Wilson for bacteriological Sch.6.3 and recorded for every bacteriological samples were taken samples bacteriological sample taken during the year; all samples had a chlorine residual measured and recorded with the exception of 8 bacteriological samples (see NOTE 1)

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Regulatory Results p Lead u g m

No. Description Legislation Requirement Achieved e Person o R C W6 Fluoride testing O.Reg.170/03 Fluoride concentration measured at Fluoride measured 2x per day (n=576 yes P.Wilson Sch.7.4 least once per day (n=365 tests per samples taken) plus continuous year) analyzer

W7 Increased O.Reg.170/03 Increase test frequency to quarterly if Test frequency at least quarterly for yes P.Wilson frequency of Sch.13.5 test result exceeds half the Ontario parameters that exceeded half the testing for Drinking Water Quality Standard MAC concentration: chloramine (2.02 chemicals mg/L), fluoride (0.68 mg/L)

W8 Lead testing in O.Reg.170/03 Twice per year, conduct 30-minute In 2015, the required number of yes P.Wilson consumer tap Sch.15.1 stagnation sampling in 50 homes with samples were taken, with average lead water lead service pipes, 5 buildings, and 10 concentrations 3.21 ppb (summer) & distribution locations; 1.82 ppb (winter)

90th percentile lead concentrations 90th percentile concentrations were for Litre-1 and Litre-2 must be <10.0 <10 ppb: 5.60 ppb (summer) and 3.50 ppb ppb (winter) W9 Duty to report O.Reg.170/03 Report immediately to MOH, MOECC, During 2015 there was (1) adverse yes P.Wilson adverse water Sch.16.3, 16.4, written report within 24 hours, sample for the Britannia WPP and (17) quality test 16.6, 16.7, corrective actions taken, resolution adverse reports for the distribution results 16.8, 16.9 notice within 7 days system. All adverse samples were reported, investigated and resolved according to O. Reg. 170/03

W10 Corrective actions O.Reg.170/03 Specific corrective actions are For all (18) adverse water quality yes P.Wilson for adverse water Sch.17.2 – required for each type of Adverse reports, the required corrective actions quality 17.13 Water Quality event : improper were taken disinfection, filter turbidity, chlorine residual, E.coli, total coliforms, Aeromonas, chemical MAC, pesticide, sodium

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Regulatory Results p Lead u g m

No. Description Legislation Requirement Achieved e Person o R C W11 Retention of O.Reg.170/03 2 years – operational checks & All records retained as per the yes P.Wilson records Section 13 microbiological testing regulation: 6 years – chemical testing, lead 2 years required– 5 years retained testing, corrective actions, annual & summary reports 6 years required– 8 years retained 15 years – sodium, fluoride, Engineer Reports 15 years required– 15 years retained

W12 Notification of O.Reg.170/03 Must provide written notification to Written notifications were provided to yes P.Wilson laboratory testing Sch.6.9 the MOECC for the identity of the MOECC in 2008 with an update in 2015 Laboratory performing regulatory for regulatory testing at the ROPEC and testing of water samples Caduceon (& subcontracted) Laboratories

W13 Laboratory O.Reg.248/03 Analysis of parameters with a health- ROPEC & Caduceon (& subcontracted) yes P.Wilson testing of drinking Section 1 based drinking water quality standard Laboratories are both licensed and water samples must be performed by a licensed and accredited labs accredited laboratory

W14 Research - O.Reg.248/03 Provide written notification to (4) research notification records yes I.Douglas laboratory testing Section 5 MOECC for research samples being updated, signed, and sent to MOECC on of water samples analyzed in non-licensed laboratories July 21st, 2015 for “special” testing associated with research projects

Water Distribution D1 Disinfection of DWWP #008- All watermains or related fixtures All watermains were disinfected as per yes C.Hall watermains 202; Sch.B 2.3 that come in contact with drinking requirements of AWWA standard C-651 water must be disinfected as per during 2015 AWWA standards C651 before being put into service

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No. Description Legislation Requirement Achieved e Person o R C

Operator Certification O1 Overall O.Reg.128/04 Overall Responsible Operator must During 2015, Overall Responsible yes J.Guthmann / Responsible be certified to level of the system: Operators held Class-3/4 license C.Hall Operator (ORO) Level-4 (Treatment) & Level-3 (treatment) and Class-2/3 license (Distribution); can be one level lower (distribution) as required by regulation for up to 150 days per year O.Reg.128/04

2 O2 Treatment & O.Reg.170/03 All adjustments to water treatment The treatment plant and distribution yes/no J.Guthmann / distribution Sch.1.2; and distribution system must be system was operated and/or C.Hall operators O.Reg.128/04 carried out by certified operators supervised by certified operators at all Sch.22 times during the reporting period, with one noted exception in the distribution system (see NOTE 2)

O3 Water quality O.Reg.170/03 All drinking water tests must be Field testing performed by Process yes P.Wilson testing Sch.7.5 performed by a Certified Operator or Operators, Remote Facility Operators, Water Quality Analyst & Water Distribution Operators (all certified by MOECC) Reports & Record-keeping R1 Summary reports O.Reg.170/03 Prepare and transmit Summary Summary Report was prepared and yes T.Rose Sch.22.2 Report for each water system to transmitted by March 31, 2016 municipal council by March 31

R2 Annual reports O.Reg.170/03 Prepare Annual Report for each Annual Report was prepared and yes T.Rose Section 11 water system and make available to posted on www.ottawa.ca website on public by February 28 February 18th, 2016

NOTE 1: Chlorine residual measured and recorded for every bacteriological sample – Ontario regulation 170/03 states that the chlorine residual concentration must be measured and recorded for every bacteriological sample taken. Usually, the operator records the chlorine residual on the laboratory sample submission form. During 2015, there were 8 out of 6,239 distribution water samples taken for bacteriological testing in which the operator failed to record the chlorine residual value. As a result, operating procedures have been reviewed and a new field log sheet has been initiated to ensure chlorine residual levels are documented. Although these instances are deemed to be non-compliance events, they do not represent a risk to safe drinking water.

NOTE 2: Distribution system supervised by certified operators – During 2015, there was one instance where a certified operator did not maintain direct supervision over the installation and connection of sections of pre-disinfected watermain. This non-compliance event was reviewed with the MOECC. There was not a risk to safe drinking water as these sections of watermain were not in service at the time, and mitigative actions were taken prior to placing the watermain in service.

NOTE 3: Filter turbidity readings – Ontario regulation 170/03 states that filter effluent turbidity must be monitored continuously with an on-line analyzer, or with readings taken every 15 minutes.

Britannia Filter #12: on January 28th, 2015 a plant operator noticed that Filter #12 had no on-line turbidity readings for a period of 3.5 hours. The operator immediately shut down Filter #12 until instrument technicians could address the problem. The root cause of the failure was found to be a loose wire in the analyzer connection. Subsequently, the connection was fixed and a site contractor was asked to carefully check each of the turbidity analyzer connections recently completed as part of major filter re-construction. The local district office of the MOECC was notified of the non-compliance. While the incident represents non-compliance, there was no adverse affect to quality of treated drinking water. The operation of the filter remained steady during the 3.5 hour period and final plant effluent turbidity remained low at 0.06 NTU or below.

Britannia Filter #17: on February 14th, 2015 a plant operator noticed that Filter #17 had no on-line turbidity readings from a period of 30 minutes. The operator immediately shut down Filter #17 and reset the turbidity analyzer. Once it was confirmed the turbidity analyzer was operating, the operator put Filter #17 back into production. The operation of the filter remained steady during the 30 minute period with no analyzer and final plant effluent turbidity remained low at 0.04 NTU or lower.

Regulations, Licenses, & Permits:

MDWL – Municipal Drinking Water License DWWP – Drinking Water Works Permit PTTW – Permit To Take Water O.Reg.170/03 – Drinking Water Systems Regulation O.Reg.169/03 – Ontario Drinking Water Quality Standards O.Reg.248/03 – Drinking Water Testing Services O.Reg.128/04 – Certification of Drinking Water Systems Operators O.Reg.188/07 – Licensing of Municipal Drinking Water systems O.Rg.170/03 (Appendix) – Procedure for Disinfection of Drinking Water in Ontario O.Reg.170/03 (Sch.15.1) – Community Lead Testing Program AWWA – American Water Works Association

Glossary:

NOTE: water quality testing refers to treated water samples unless otherwise stated ML/d = mega-Litres per day = million Litres per day WPP = Water Purification Plant TC = Total Coliform bacteria, units of (cfu/100mL) EC = E.coli bacteria, units of (cfu/100mL) HPC = Heterotrophic Plate Count bacteria, units of (cfu/mL) PS = Pump Station MAC = maximum acceptable concentration for Ontario Drinking Water Standards MOH – Medical Officer of Health MOECC – Ministry of Environment and Climate Change

City of Ottawa Britannia Water Purification Plant - 2015 Drinking Water Quality physical, microbiological, chemical, & radiological test results

Physical Drinking water Test Parameter units Treated water results standard* Colour TCU 1.8 5.0 (A) Turbidity NTU 0.05 5.0 (A) Temperature °C 0.1 - 26.6 15.0 (A) Conductivity m-mhos/cm 140 UV254 absorbance abs/cm 0.055 Total Dissolved Solids mg/L 96.7 500 (A)

Microbiological Drinking water Test Parameter units Treated water results standard* Total Coliforms cfu/100mL 1 of 1443 tests > 0 0 E.coli cfu/100mL 0 of 1443 tests > 0 0 Heterotrophic Plate Count (HPC) cfu/mL range: <10 - 420 500 (O) Cryptosporidium #/100 L not detected (12 tests) Giardia #/100 L not detected (12 tests)

Chemical - general Drinking water Test Parameter units Treated water results standard*

pH log10 9.31 7.0-10.5 (O)

Alkalinity mg/L CaCO3 31.5 30 - 500 (A) Bromate mg/L <0.003 0.01 Bromide mg/L 0.008 Calcium mg/L 8.5 Chlorate mg/L 0.15 1.0 Chloride mg/L 5.3 250 (A) Chlorine (total) mg/L 2.02 0.25 - 3.00 Chlorite mg/L <0.01 1.0 Cyanide mg/L <0.003 0.2 Fluoride mg/L 0.68 1.5 Magnesium mg/L 2.1 Potassium mg/L 0.66 Sodium mg/L 16.3 20, 200 (A) Sulphate mg/L 26.7 500 (A)

Total Hardness** mg/L CaCO3 30.0 80 - 100 (A)

Calcium Hardness** mg/L CaCO3 21.2

Magnesium Hardness** mg/L CaCO3 8.8 Ammonia mg/L N <0.01 Total Kjeldahl Nitrogen mg/L N 0.38 Organic Nitrogen** mg/L N 0.37 0.15 (A) Nitrate mg/L N 0.15 10.0 Nitrite mg/L N <0.02 1.0 Phosphates mg/L P <0.02 Dissolved Organic Carbon mg/L 3.2 5.0 (A)

Langelier's Index** log10 -1.9 C-T Disinfection** mg/L-min 79.0

Log Giardia Disinfection** log10 4.6-log min 0.5-log

Log Virus Disinfection** log10 >10-log min 3.0-log

Chemical - inorganic metals Drinking water Test Parameter units Treated water results standard* Aluminum mg/L 0.090 0.100 (O) Antimony mg/L < 0.006 Arsenic mg/L 0.0002 0.0102/ 0.0253 Barium mg/L 0.0138 1.0 Beryllium mg/L < Bismuth mg/L < Boron mg/L 0.0054 5.0 Cadmium mg/L < 0.005 Chromium mg/L 0.0002 0.05 Chromium VI mg/L 0.00006 Cobalt mg/L < Copper mg/L 0.0014 1.0 (A) Iron mg/L 0.0024 0.3 (A) Lead mg/L < 0.010 Manganese mg/L 0.0024 0.05 (A) Mercury mg/L < 0.001 Molybdenum mg/L < Nickel mg/L 0.0005 2 3 Selenium mg/L < 0.05 / 0.01 Silver mg/L < Strontium mg/L 0.0381 Thallium mg/L < Tin mg/L < Titanium mg/L < Tungsten mg/L < Uranium mg/L < 0.02 Vanadium mg/L 0.0002 Zinc mg/L 0.0010 5.0 (A) Zirconium mg/L <

Chemical - organics Drinking water Test Parameter units Treated water results standard* 1,1,1-Trichloroethane µg/L < 1,1,2,2-Tetrachloroethane µg/L < 1,1,2-Trichloroethane µg/L < 1,1,2,2-Tetrachloroethane µg/L < 1,1-Dichloroethane µg/L < 1,1-Dichloroethylene µg/L < 14.0 1,2-Dichlorobenzene µg/L < 200, 3.0(A) 1,2-Dichloroethane µg/L < 5.0 1,2-Dichloroethylene - cis µg/L < 1,2-Dichloroethylene - trans µg/L < 1,2-Dichloropropane µg/L < 1,2,4-Trichlorobenzene µg/L < 1,3-Dichloropropene - cis µg/L < 1,3-Dichloropropene - trans µg/L < 1,3-Dichlorobenzene µg/L < 1,4-Dichlorobenzene µg/L < 5.0, 1.0(A) 2-Methylisoborneol µg/L < 2,3,4,6-Tetrachlorophenol µg/L < 100.0, 1.0(A) 2,4,5-Trichlorophenoxyacetic Acid (2,4,5-T) µg/L < 280 2,4,6-Trichlorophenol µg/L < 5.0, 2.0(A) 2,4-DDT µg/L < 2,4-Dichlorophenol µg/L < 900, 0.3(A) 2,4-Dichlorophenoxyacetic Acid (2,4-D ) µg/L < 100.0

Alachlor µg/L < 5.0

Drinking water Test Parameter units Treated water results standard* Aldicarb µg/L < 9.0 Aldrin µg/L < Aldrin + Dieldrin µg/L < 0.7 Atrazine µg/L < Atrazine + N-dealkylated metabolites µg/L < 5.0 Azinphos-methyl µg/L < 20 Bendiocarb µg/L < 40.0 Benzene µg/L < 5.0 Benzo(a)pyrene µg/L < 0.01 Bromobenzene µg/L < Bromoxynil µg/L < 5.00 Carbaryl µg/L < 90.0 Carbofuran µg/L < 90.0 2 3 Carbon Tetrachloride µg/L < 2.0 / 5.0 Chlordane - alpha µg/L < Chlordane - gamma µg/L < Chlordane - total µg/L < 7.0 Chlorobenzene µg/L < 80.0, 30.0(A) Chlorpyrifos µg/L < 90 Cyanazine µg/L < 10.0 DDD - para, para µg/L < DDE- para, para µg/L < DDT - ortho, para µg/L < DDT + metabolites µg/L < 30.0 De-ethylated Atrazine µg/L < Diazinon µg/L < 20.0 Dicamba µg/L < 120.0 Dichloromethane µg/L < 50.0 Diclofop - methyl µg/L < 9.0 Dieldrin µg/L < Dimethoate µg/L < 20.0 Dinoseb µg/L < 10.0 Diquat µg/L < 70.0 Diuron µg/L < 150.0 Ethylbenzene µg/L < 140.0, 1.6(A) Geosmin µg/L 0.004 Glyphosate µg/L < 280.0 Heptachlor µg/L < Heptachlor + Heptachlor Epoxide µg/L < 3.0 Heptachlor Epoxide µg/L < Hexachlorocyclohexane (Lindane) µg/L < 4.0 Malathion µg/L < 190.0 MCPA µg/L < 100.0 Methoxychlor µg/L < 900.0 Methyl-tert -Butyl ether µg/L < 15.0 (A) Metolachlor µg/L < 50.0 Metribuzin µg/L < 80.0 Microcystin µg/L < 1.5 N - Nitrosodimethylamine (NDMA) µg/L 0.0016 0.0093 / 0.0402 Nitrilotriacetic Acid µg/L < 400.0 Oxychlordane µg/L < Paraquat µg/L < 10.0 Parathion µg/L < 50.0 Pentachlorophenol µg/L < 60.0, 30.0(A) Phorate µg/L < 2.0 Picloram µg/L < 190.0 Polychlorinated Biphenyls (PCBs) µg/L < 3.0 Prometryne µg/L < 1.0

Simazine µg/L < 10.0

Drinking water Test Parameter units Treated water results standard* Styrene µg/L < Temephos µg/L < 280 Terbufos µg/L < 1.0 Tetrachloroethylene µg/L < 10.02 / 30.03 Toluene µg/L < 60.0, 24.0 (A) Triallate µg/L < 230.0 Trichloroethylene / TCE µg/L < 5.0 Trifluralin µg/L < 45.0 Vinyl Chloride µg/L < 2.0 Xylene - meta & para µg/L < Xylene - ortho µg/L < Xylenes - total µg/L < 90.0, 20.0(A) 2,3,7,8,-Tetra-Dizenzo-p-Dioxin μg/L < 1,2,3,7,8,-Penta-Dibenzo-p-Dioxin μg/L < 1,2,3,4,7,8,-Hexa-Dibenzo-p-Dioxin μg/L < 1,2,3,6,7,8,-Hexa-Dibenzo-p-Dioxin μg/L < 1,2,3,7,8,9-Hexa-Dibenzo-p-Dioxin μg/L < 1,2,3,4,6,7,8,-Hepta-Dibenzo-p-Dioxin μg/L < 2,3,7,8-Tetra-Dibenzofuran μg/L < 1,2,3,7,8,-Penta-Dibenzofuran μg/L < 2,3,4,7,8,-Penta-Dibenzofuran μg/L < 1,2,3,4,7,8,-Hexa-Dibenzofuran μg/L < 1,2,3,6,7,8,-Hexa-Dibenzofuran μg/L < 2,3,4,6,7,8,-Hexa-Dibenzofuran μg/L < 1,2,3,7,8,9,-Hexa-Dibenzofuran μg/L < 1,2,3,4,6,7,8-Hepta-Dibenzofuran μg/L < 1,2,3,4,7,8,9,-Hepta-Dibenzofuran μg/L < Total Tetrachlorodibenzo-p-Dioxins μg/L < Total Pentachlorodibenzo-p-Dioxins μg/L < Total Hexachlorodibenzo-p-Dioxins μg/L < Total Heptachlorodibenzo-p-Dioxins μg/L < Total Octachlorodibenzo-p-Dioxins μg/L < Total Tetrachlorodibenzofurans μg/L < Total Pentachlorodibenzofurans μg/L < Total Hexachlorodibenzofurans μg/L < Total Heptachlorodibenzofurans μg/L < Total Octachlorodibenzofuran μg/L < 2,3,7,8-TCDD Toxicity Equivalents TEQ/L < 0.000015

Chemical - disinfection by-products Drinking water Test Parameter units Treated water results standard* Chloroform μg/L 31.7 Bromodichloromethane μg/L 2.6 Dibromochloromethane μg/L 0.2 Bromoform μg/L < 1 Total Trihalomethanes (TTHMs) μg/L 45.5 100.0 Monochloroacetic Acid μg/L 1.0 Monobromoacetic Acid μg/L < Dichloroacetic Acid μg/L 14.1 Dibromoacetic Acid μg/L < Trichloroacetic Acid μg/L 12.7 Bromochloroacetic Acid μg/L 1.2 Bromodichloroacetic Acid μg/L 1.3 Chlorodibromoacetic Acid μg/L < Tribromoacetic Acid μg/L < 2 Total Haloacetic Acids (HAA5) μg/L 27.8 80.0

Total Haloacetic Acids (HAA9) μg/L 30.3

Chemical - pharmaceuticals & personal care products Drinking water Test Parameter units Treated water results standard* 1,7-Dimethylxanthine µg/L 0.0032 10-Hydroxy-Amitriptyline µg/L < 17a-Dihydroequilin µg/L < 17a-Estradiol µg/L < 17a-Ethinylestradiol µg/L < 17b-Estradiol µg/L < Acetaminophen µg/L 0.0007 Albuterol µg/L 0.0020 Amitriptyline µg/L < Amlodipine µg/L < Amphetamine µg/L < Androstenedion µg/L < Androsterone µg/L < Atenolol µg/L < Atorvastatin µg/L < Azithromycin µg/L < Benzafibrate µg/L < Benzoylecgonine µg/L < Betamethasone µg/L < 4 Bis-phenyl A µg/L 0.0005 Caffeine µg/L 0.0023 Carbamezepine µg/L 0.0003 Clotrimazole µg/L < Cotinine µg/L 0.0013 Deet µg/L 0.0018 Diphenhydramine µg/L < Enrofloxacin µg/L < Erythromycin µg/L < Fluoxetine µg/L 0.0004 Indomethacin µg/L < Ketoprofen µg/L 0.0017 Metformin µg/L 0.0139 Miconazole µg/L < Norfloxacin µg/L < Ofloxacin µg/L < Oxolinic Acid µg/L < Pentoxifylline µg/L < Roxithromycin µg/L < Sulfachloropyridazine µg/L < Sulfadiazine µg/L < Sulfadimethoxine µg/L < Sulfamerazine µg/L < Sulfamethazine µg/L < Sulfamethizole µg/L < Sulfamethoxazole µg/L < Sulfathiazole µg/L < Trimethoprim µg/L <

Chemical - additional test parameters**** Drinking water Test Parameter units Treated water results standard* Dissolved Inorganic Carbon mg/L 5.9 Total Organic Carbon mg/L 3.0

Silicate mg/L SiO2 2.5 Phosphorus (total) mg/L < Perchlorate µg/L < Iodoacetic acid µg/L <

Dichloroacetonitrile µg/L <

Drinking water Test Parameter units Treated water results standard* N-Nitrosodibutylamine µg/L < N-Nitrosodiethylamine µg/L < N-Nitrosomorpholine µg/L < N-nitrosodi-n-propylamine µg/L < N-nitrosomethylethylamine µg/L < N-nitrosopiperidine µg/L < N-nitrosopyrrolidine µg/L < 1-methylnaphthalene µg/L < 2-methylnaphthalene µg/L < Acenaphthene µg/L < Acenaphthylene µg/L < Anthracene µg/L < Benzo(a)anthracene µg/L < Benzo(a)pyrene µg/L < Benzo(b)fluoranthene µg/L < Benzo(e)pyrene µg/L < Benzo(k)fluoranthene µg/L < Chrysene µg/L < Dibenzo(a,h)anthracene µg/L < 7,12-dimethylbenz(a)anthracene µg/L < Fluoranthene µg/L < Fluorene µg/L < Benzo(g,h,i)perylene µg/L < Indeno(1,2,3-c,d)pyrene µg/L < Naphthalene µg/L < Perylene µg/L < Phenanthrene µg/L < Pyrene µg/L <

Radiological Drinking water Test Parameter units Treated water results standard* 5 Gross-Alpha Radioactivity Bq/L <0.01 0.5 5 Gross-Beta Radioactivity Bq/L 0.03 1.0 Tritium Bq/L 4.8 7000

Glossary and notes: reported values represent average concentrations measured in treated water < indicates less than detection limit mg/L = milligram per Litre = part per million (ppm) μg/L = microgram per Litre = part per billion (ppb) cfu = colony forming units *Ontario Drinking Water Standards O.Reg.169/03 and/or Health Canada Guidelines for Canadian Drinking Water Quality *Drinking water standards are health-based MAC (Maximum Acceptable Concentration) values, unless otherwise noted (A) indicates aesthetic objective, not health related but may affect taste, odour, or appearance (O) indicates an operational guideline, to ensure efficient treatment and distribution system operation 1 reported value is an average of the maximum result observed in the distribution system in each quarter 2 Health Canada Drinking Water Guideline only 3 Ontario Drinking Water Quality Standard only 4Bisphenyl A (BPA) result from 2013 testing by Health Canada study 5Radioactivity screening values = 0.5 Bq/L for gross alpha and 1.0 Bq/L for gross beta **calculated parameter based on individual analytes *** The lead values reported do not include the Ontario Ministry of Environment Community Lead Testing Program results

****tests performed by Ontario Drinking Water Surveillance Program (DWSP)