ANNUAL ENVIRONMENTAL REVIEW (1 April 2015 to 31 March 2016)
TAMAR VALLEY POWER STATION, BELL BAY
FOR AETV POWER
10 January 2017 - Final (Signed) - Project No: 2946.002
SEMF PTY LTD
5 / 40 Molle Street, Hobart Tasmania 7000
T (03) 6212 4400 E [email protected] W www.semf.com.au
ACN 117 492 814 - ABN 24 117 492 814 | F100 04, Revision 22, 4 September 2014
DOCUMENT ISSUE AUTHORISATION
PROJECT: Annual Environmental Review (1 April 2015 to 31 March 2016) PROJECT NO: 2946.002 AUTHOR: Catherine Ford (BAgSc) PEER REVIEW: Fiona Keserue-Ponte (BAppSc Hons), CEnvP
DATE PURPOSE OF ISSUE/NATURE OF REVISION REV REVIEWED BY AUTHORISED BY
25/07/2016 Preliminary Draft for internal review 0 Fiona Keserue-Ponte Catherine Ford (SEMF) (SEMF)
29/07/2016 Preliminary Draft for Client review 1 Kathy Shanley (AETV) Catherine Ford (SEMF)
04/08/2016 Preliminary Draft for EPA information Preliminary Provided to EPA Catherine Ford (SEMF) Draft Full AETV review pending – Not endorsed for release/review For information only
04/08/2016 Full Draft for Client review 2 Chris Ashley (AETV) Catherine Ford (SEMF)
15/08/2016 Full Draft for EPA review 3 EPA Catherine Ford (SEMF)
22/09/2016 Final for Client and Director EPA Final Catherine Ford (SEMF) Catherine Ford (SEMF)
10/1/2017 Signed Final for Director EPA Final Catherine Ford (SEMF) Catherine Ford (SEMF) (Signed)
This document has been prepared in accordance with the scope of services agreed upon between SEMF Pty Ltd (SEMF) and the Client. To the best of SEMF’s knowledge, the document presented herein represents the Client’s intentions at the time of printing of the document. However, the passage of time, manifestation of latent conditions or impacts of future events may result in the actual contents differing from that described in this document. In preparing this document SEMF has relied upon data, surveys, analysis, designs, plans and ot her information provided by the client, and other individuals and organisations referenced herein. Except as otherwise stated in this document, SEMF has not verified the accuracy or completeness of such data, surveys, analysis, designs, plans and other information. No responsibility is accepted for use of any part of this document in any other context or for any other purpose by third parties. This document does not purport to provide legal advice. Readers should engage professional legal advisers for this purpose.
SEMF Pty Ltd ACN 117 492 814 ABN 24 117 492 814 Telephone: (61 3) 6212 4400 Facsimile: (61 3) 6212 4475 Email: [email protected]
Authorisation & Foreword: Page 1 of 2 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed)
EXECUTIVE SUMMARY
AETV Power (AETV) is committed to operating the Tamar Valley Power Station (TVPS) at Bell Bay in an environmentally responsible manner, and in accordance with the conditions of the current Environmental Protection Notice No. 7898/1 (EPA, 2012a), and associated amendments. This Annual Environmental Review (AER) has been prepared for the reporting period 1 April 2015 to 31 March 2016 and submission to the Director Environment Protection Authority (Director EPA) to satisfy Condition RP1 of the EPN. Temporary Operational Changes & Maintenance In June 2014, the Mitsubishi Combined-Cycle Gas Turbine (CCGT) Unit was put into lay-up as it was surplus to State power generation requirements at the time, and the potential sale of the unit was considered. The CCGT remained in lay-up until 19th January 2016 when it was brought back on-line to address a power generation shortfall which occurred in Tasmania. The power generation shortfall occurred due to: . Lower than expected dam volumes; and . Bass Link cable fault. To ramp up Tasmanian power generation, operations on the TVPS site were increased where possible. During the AER reporting period turbine operations at the TVPS underwent a number of changes as part of the variations in operational demands on each of the turbines, including : . The Mitsubishi CCGT (Unit 201) was in lay-up for part of the period, then was been brought back on line; . The Rolls Royce Trent OCGT (Unit 104) was also brought back on line (after overseas repair works and onsite maintenance works); . The FT8s (Pratt & Whitney OCGT units 101A, 101B, 102A, 102B, 103A and 103B) were operated with and without the synchronous condensers, as power demands permitted, and as directed by maintenance work (with units being progressively being taken off-line and recommissioned); Other activities during this AER reporting period included: . Planned maintenance works (that had been on hold) associated with the Cooling Tower and Wastewater Retention Pond (WWRP) were undertaken, prior to each of these being brought back on line as part of the CCGT operations; and . TVPS operational shifts reverted to the former 24/7 basis. The State’s power shortfall was also met through the progressive establishment and operation of temporary diesel power generators at various locations within Tasmania, including on the neighbouring Hydro former Bell Bay Power Station (BBPS) site. In addition to maintenance which occurred on the TVPS turbines: . The Wastewater Retention Pond (WWRP) was taken off-line to enable desludging to be undertaken; . Accumulated sludge was removed from the WWRP (15 to 18 December 2015) in accordance with a methodology that had been approved by the EPA;
Executive Summary: Page 1 of 2 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed)
. The sludge was tested for chemicals of potential concern, and was spread on a concrete pad on the neighbouring Hydro site for dewatering and later reuse on-site; and . While offline, the integrity of the WWRP liner was also checked for possible weaknesses that could be the source of undetermined water leaks that had been observed during the last reporting period. Monitoring of Potential Impacts Monitoring potential impacts of the operation was undertaken during the AER reporting period in accordance with the conditions of the EPN. The monitoring program included temporary variations to the frequency and parameters for wastewater and Donovans Bay. These variations were authorised based on the lower potential impact of the TVPS operation during the period when the CCGT unit was in lay-up (i.e. 4th June 2014 to January 2016). Monitoring reverted to that described in the EPN once the CCGT unit was back on line. Information regarding the operation of equipment, water supply utilisation, and the timing of monthly and quarterly monitoring (including wastewater, stormwater, Donovans Bay, near-shore water quality, stack testing and noise) during the AER reporting period is summarised in the timeline of operational and monitoring issues (Table 2). Water quality analysis of inline and grab samples showed general compliance of the operation with EPN regulatory limits, with only one exception; an exceedances of the EPN limit was recorded for Total Suspended Solids (TSS) in wastewater discharge upon start-up of the CCGT and WWRP after a prolonged period without discharge on 4 April 2015. Start-up of the CCGT was followed by a period of inconsistent operations, variable operational flows, and re- stabilisation of the WWRP after desludging. Monitoring results collected for March 2015 show the concentration of TSS in wastewater discharge returned to acceptable levels during the next monitoring event. The elevation has been attributed to ‘abnormal’ operations related to start-up, and is not therefore considered to be an exceedence of the limit set in the EPN, which are applicable to normal flow and operational conditions. TSS concentrations returned to levels within the EPN limit in the subsequent monitoring event for April. Two other parameters were recorded above their typical levels on the same first discharge occasion on 4 April 2015 and identified for further investigation by AETV; Total Petroleum Hydrocarbons (TPH) and Trihalomethanes (THM). In the absence of a prescribed EPN limit for these parameters, comparison with limits set for stormwater discharge (500 µg/L) shows them to be present at an acceptable level. AETV has observed the concentrations of TPH and THM over three monthly sampling events (February to April 2016) to be above previously recorded (typical) levels. AETV is taking a precautionary approach, and is continuing to monitor the potential correlation of TPH and THM, and their likely source investigated to improve understanding and management of operations. Conclusion AETV has been diligent in managing the power generation operations to ensure its compliance with EPN conditions, while also responding to State power shortfalls and co-ordinating planned equipment maintenance during this highly changeable AER reporting period (Refer to Table 2 for a summary of environmental monitoring and reporting compliance).
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CONTENTS
1. INTRODUCTION ...... 1
1.1 OBJECTIVES AND SCOPE OF THE AER ...... 1
1.2 STRUCTURE OF THE AER...... 1 1.3 ACKNOWLEDGEMENTS ...... 2 2. ENVIRONMENTAL MONITORING ...... 3 2.1 GENERAL ...... 3
2.2 PUBLIC COMPLAINTS ...... 3
2.3 ENVIRONMENTAL INCIDENTS ...... 3
2.4 PROCEDURAL AND OPERATIONAL EQUIPMENT CHANGES ...... 5 2.4.1 Overview ...... 5 2.4.2 Maintenance and Repairs ...... 5 2.4.3 Changes in Equipment Operations On-Site ...... 6
2.5 WATER USAGE...... 7
2.6 OPERATING HOURS AND FUEL USAGE OF THE TURBINES ...... 8
2.7 MONITORING DATA ...... 10 2.7.1 EPN Maximum Quantity Regulatory Limits ...... 10 2.7.2 Stack Testing ...... 10 2.7.3 Water Quality Monitoring Overview ...... 12 2.7.4 Inline Wastewater Flow and Water Quality Monitoring ...... 12 2.7.5 Wastewater Inputs, Treatment and Discharge ...... 17 2.7.6 Eutrophication (Toxicity) Monitoring ...... 23 2.7.7 Biological Monitoring ...... 23 2.7.8 Stormwater Monitoring ...... 24 2.7.9 Stormwater Monitoring Results ...... 24 2.7.10 Donovans Bay Monitoring ...... 25 2.7.11 Tamar River ...... 34 2.7.12 Hazardous Materials ...... 34 2.7.13 Noise ...... 34
2.8 SITE INSPECTIONS ...... 35
2.9 REVEGETATION WORKS & ASSESSMENT ...... 36
2.10 EMERGENCY RESPONSE AND CONTINGENCY PLAN ...... 36
2.11 WASTE PRODUCED ...... 36
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3. AER COMMITMENTS & THEIR STATUS ...... 39
3.1 STATUS OF THE COMMITMENTS MADE IN THE 2015/16 AER ...... 39
3.2 SUMMARY OF COMMITMENTS FOR THE UPCOMING 2016/17 AER REPORTING PERIOD ..... 44 4. ENVIRONMENTAL MONITORING & REPORTING COMPLIANCE SUMMARY ...... 46 5. REFERENCES ...... 50
FIGURES Figure 1: Water quality monitoring locations ...... 13 Figure 2: Wastewater outfall - Inline pH (daily averages) ...... 14 Figure 3: Wastewater outfall - Inline flow rate (daily averages) ...... 15 Figure 4: Wastewater outfall - Inline dissolved oxygen (daily averages) ...... 16 Figure 5: Comparison of ambient near shore, WWRP inline and DP1 outfall discharge temperature ...... 19 Figure 6: Wastewater outfall Monitoring Results Summary (mg/L) ...... 21 Figure 7: Investigation of possible correlation between presence of TPH and THM in wastewater (mg/L) 23 Figure 8: Donovans Bay (1mB & 1mA) – Field pH ...... 27 Figure 9: Donovans Bay (1mB & 1mA) – Field dissolved oxygen (mg/L) ...... 27 Figure 10: Donovans Bay (1mB & 1mA) – Field ORP (mV) ...... 28 Figure 11: Donovans Bay (1mB & 1mA) – Field Conductivity (µS) ...... 29 Figure 12: Donovans Bay (1mB & 1mA) – Field Turbidity (NTU) ...... 30 Figure 13: Donovans Bay (1mB & 1mA) - Total Nitrogen (mg/L) ...... 30 Figure 14: Donovans Bay (1mB & 1mA) - Ammonia (mg/L) ...... 31 Figure 15: Donovans Bay (1mB & 1mA) - Nitrite and Nitrate (mg/L) ...... 32 Figure 16: Donovans Bay (1mB & 1mA) - Total Phosphorous (mg/L) ...... 33 Figure 17: Donovans Bay (1mB & 1mA) - Chlorophyll-a (mg/L) ...... 33
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TABLES Table 1: AER Sections and Applicability to Condition RP1 ...... 1 Table 2: AER 2015/16 Timeline of operational and monitoring issues ...... 4 Table 3: Total Raw Water Usage (1 April 2015 to 31 March 2016) ...... 7 Table 4: TVPS Turbines Fuel Usage (1 April 2015 – 31 March 2016) ...... 9 Table 5: Compliance with EPN Maximum Quantity Regulatory Limits ...... 10
Table 6: Stack Testing Results NOx (as NO2 @ 15% O2) (mg/m3) ...... 11 Table 7: Quarterly Stormwater Discharge (DP2) Monitoring Results (mg/L) ...... 25 Table 8: Summary of Solid and Liquid Waste Materials Management (1 April 2015 to 31 March 2016) .... 38 Table 9: Status of commitments made in the 2015/16 AER ...... 39 Table 10: Summary of new and ongoing commitments for the upcoming 2016/17 AER reporting period .. 44 Table 11: Environmental Monitoring & Reporting Compliance Summary ...... 46
APPENDIX APPENDIX A Tamar Valley Power Station: Proposed sludge disposal methodology APPENDIX B EPA letter titled ‘Environmental Approval No. 9384/1. Reuse of sludge for landscaping – Bell Bay Power Station’. APPENDIX C Wastewater retention pond sludge analysis results APPENDIX D1 Stack testing results summary APPENDIX D2 Q2 2015 Stack testing report (June 2015) APPENDIX D3 Emission Testing report – U104 Re-test (July 2015) APPENDIX D4 Q3 2015 Stack testing report (September 2015) APPENDIX D5 Q4 2015 Stack testing report (December 2015) APPENDIX D6 Q1 2016 Stack testing report (April 2016) APPENDIX E1 Wastewaster discharge outfall pH results APPENDIX E2 Monthly wastewaster and inline monitoring results APPENDIX F1 Quarterly near shore ambient monitoring results APPENDIX F2 Near shore inline temperature moFnitoring results APPENDIX G EPA letter titled ‘Request to vary biological monitoring requirements’. APPENDIX H Quarterly Donovans Bay field and laboratory monitoring results APPENDIX I Emergency Response Plan (Rev 1.6 - AETV, 31 May 2016)
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ABBREVIATIONS
AER Annual Environmental Review m Metres AETV AETV Power m3 Cubic metres BBPS Bell Bay Power Station m3/hr Cubic metres per hour BOD Biochemical Oxygen Demand mg/L Milligrams per Litre C Compliant mg/m 3 Milligrams per cubic metre CCGT Combined-Cycle Gas Turbine ML Mega litres CEO Chief Executive Officer NC Not Compliant CIP Clean-In-Place NGERS National Greenhouse Energy Reporting Scheme D1–D4 Donovans Bay water quality monitoring NOx Nitrous Oxide locations (1 to 4) dBA A-Weighted Decibels NTU Nephelometric Turbidity Units DB Donovans Bay OCGT Open Cycle Gas Turbine (Pratt & Whitney) 0C Degrees Celcius PC Partially compliant DO Dissolved Oxygen PCBs Polychlorinated Biphenyls EPA Environment Protection Authority pH Power of Hydrogen: measure of acidity Tas Tasmania and alkalinity EPN Environment Protection Notice No. RO Reverse Osmosis 7898/1 - AETV Bell Bay operation ETC Ektimo Pty Ltd SEMF SEMF Pty Ltd GJ Giga Joules T/Hr Tonnes per Hour Hrs Hours THMs Trihalomethanes HRSG Heat Recovery Steam Generator TPH Total Petroleum Hydrocarbons Hz Hertz TSS Total Suspended Solids kL/hr Kilolitres per hour TVPS Tamar Valley Power Station L Litres VIPAC VIPAC Engineers and Scientists Ltd Laun Launceston WQ Water Quality LOR (Laboratory) Limit of Reporting WTP Water Treatment Plant M1–M4 Near shore water quality monitoring WWRP Wastewater Retention Pond locations (M1, M2, M3,M4)
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1. INTRODUCTION
1.1 OBJECTIVES AND SCOPE OF THE AER
This Annual Environmental Review (AER) is issued to satisfy Condition RP1 of Environment Protection Notice (EPN) No. 7898/1 (EPA, 2012a), for the operation of the TVPS power station (Activity type: Fuel Burning). The Tamar Valley Power Station (TVPS) is located at 4055 East Tamar Highway, Bell Bay , Tasmania, 7253, and is operated by AETV Power (AETV). AETV Power is a wholly owned subsidiary of Hydro Tasmania. Condition RP1 requires that a publicly available AER must be submitted to the Director (EPA). The scope of the AER is designed to address the requirements of Condition RP1. This AER covers the reporting period of 1 April 2015 to 31 March 2016. Reference will be made in this AER (where appropriate) to the establishment of temporary diesel generators on the adjacent Hydro site.
1.2 STRUCTURE OF THE AER
The AER sections are structured to address elements of Condition RP1 of EPN 7898/1. These elements are referenced as subsection numbers for the condition in Table 1.
Table 1: AER Sections and Applicability to Condition RP1
AER EPN RP1 Description Section Sub-section
(The AER 1.0 A publicly available Annual Environmental Review for the activ ity in general) must be submitted to the Director by 30 April annually. (Unless an extension has been agreed to with the EPA).
Foreword Authorisation A statement by the General Manager, or Chief Executive Officer, & Foreword acknowledging the contents of the current Annual Environmental Review.
2.2 1.2 A listing of any complaints received from the public during the reporting period and any actions that have resulted.
2.3 1.3 A listing of environmental incidents, and/or incidents of non- compliance with permit or EPN conditions, that occurred during the reporting period. Together with any mitigation or preventative actions that have resulted from such incidents.
2.4 1.4 A summary of any environment related procedural or process changes that have been implemented during the reporting period.
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AER EPN RP1 Description Section Sub-section
2.7 1.5 A summary of the monitoring data required by the Director. This information should be presented in graphical form where possible, including comparison with the results of at least the preceding reporting period. Special causes and system changes that have impacted on the parameters monitored must be noted. Explanation of significant deviations between actual results and any predictions made in previous reports must be provided.
3 1.6 A summary of fulfilment of environmental commitments made for the reporting period. This summary must include indication of results of the actions implemented and explanation of any failures to achieve such commitments.
2.11 1.7 A summary of the amounts (tonnes or litres) of both solid and liquid wastes produced and treatment methods implemented during the reporting period. Initiatives or programs planned to avoid, minimise, re-use or recycle such wastes over the next reporting period should be detailed.
2.10 1.8 A copy of the most recent version of the Emergency Response and Contingency Plan.
1.3 ACKNOWLEDGEMENTS
SEMF gratefully acknowledges that AETV staff have provided assistance in compiling significant amounts of input information for this report.
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2. ENVIRONMENTAL MONITORING
2.1 GENERAL
Section 3 provides a description of all environmental monitoring carried out under the EPN and discussion of monitoring data. Where appropriate this AER (for the review period 1 April 2015 to 31 March 2016) is compared to the information for the preceding 12 months of operation as provided in the AER for 2014 - 2015, and earlier periods where relevant (e.g. if there has been a variation in results) . Refer to Table 2 for a summary of operational equipment usage, water supply and monitoring [including wastewater retention pond (WWRP) outfall water quality, stormwater water quality, near shore inline receiving water temperature, stack testing emission levels and noise levels] during the 2015/16 AER reporting period.
2.2 PUBLIC COMPLAINTS
AETV records any complaints received in its incident reporting system. No complaints were reported to AETV nor were any received by the EPA regarding operation of the TVPS during the 2015-2016 reporting period.
2.3 ENVIRONMENTAL INCIDENTS
No significant, or reportable incidents occurred during the reporting period at the TVPS. Elevated concentration of Total Suspended Solids (above the EPN limit) was recorded in wastewater discharge on one occasion during the reporting period upon start-up of the OCGT after a prolonged period of no discharge. In the absence of a prescribed EPN limit, the elevated levels of Total Petroleum Hydrocarbons and Trihalomethanes recorded in the same wastewater discharge was identified by AETV for further investigation, Details of the elevated results were provided to and discussed with the EPA. Upon review of the monitoring data and operational changes at the time, i t was determined that the elevated concentration of TSS and unusual levels of TPH and THM were not considered to be an exceedance of prescribed EPN limits as they occurred during periods of inconsistent flow, and were not representative of normal operations (refer to Sections 2.7.5 and 2.7.8 for discussion). AETV are continuing to investigate the change in TPH and THM levels in wastewater discharge.
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Table 2: AER 2015/16 Timeline of operational and monitoring issues
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2.4 PROCEDURAL AND OPERATIONAL EQUIPMENT CHANGES
2.4.1 Overview
No notable changes to operating procedures occurred during the AER reporting period. Several significant changes occurred in the utilisation of power generation equipment during the period. These changes were required in order to increase the State-based power generation to the. The power shortfall was due to: . Very low Hydro dam volumes; and . A fault in the Bass Link cable.
2.4.2 Maintenance and Repairs
Works on Power Generation Equipment The Mitsubishi Combined-Cycle Gas Turbine (CCGT) (Unit 201), which had been in lay-up since June 2014, was recommissioning in January 2016, together with the Cooling Tower which had been taken offline and emptied during the lay-up period. The onset of CCGT operation resulted in: . Increased use of raw water and gas by the power station; and . Increased wastewater generation and discharge via the wastewater retention pond (WWRP). The Rolls Royce Trent OCGT (Unit 104) was taken off-line for a few months; components were sent overseas for repairs due to warranty recall (a latent defect on the high pressure turbine blades), and on-site maintenance works were also undertaken. This turbine was brought back on-line in March 2016. The FT8s (Pratt & Whitney OCGT units 101A, 101B, 102A, 102B, 103A & 103B) were progressively taken off-line on a rotational basis, for individual maintenance, as power demands permitted. The installation of new engine heaters on all FT8s was completed by November 2015. The FT8s were operated as synchronous condensers for nine (9) of the twelve months of the reporting period; they were used as power generating turbines during three (3) months of the reporting period. This was required to meet high energy demand. WWRP Inspection, Sludge Removal & Maintenance In addition to the maintenance works on power generation units, the WWRP was taken off-line in December 2015 to:
. Enable maintenance work to be undertaken. In particular around 100 m3 of accumulated sludge was removed from the WWRP; and . Once emptied of sludge, the WWRP liner was inspected for integrity and possible weaknesses; none was found.
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The sludge is predominantly sourced from the on-site treatment of untreated Curries River Dam raw water supply. The treatment process removes the fine suspended solids present in that raw water source. The accumulated sludge was removed from the WWRP (between 15 and 18 December 2015) in accordance with the proposed methodology that was submitted to and approved by the EPA (Appendices A and B respectively). During the removal operation, sludge was collected in a vacuum truck, then transported a short distance to an existing tank foundation pad (i.e. concrete base) at the adjacent Bell Bay Power Station site for dewatering. The analysis results of the WWRP sludge are provided in Appendix C). The presence of arsenic contamination at a concentration of 56 mg/kg, means that the sludge is classified as a low level contaminated soil under the Tasmania EPA’s Information Bulletin No, 105; Classification and Management of Contaminated Soil for Disposal (EPA, November 2012b). In accordance with the EPA approved methodology, the sludge will be mixed with sand or sawdust (based on advice from the EPA) and will be stored in situ for approximately two years. Once dewatered, it is proposed that the sludge will be used to re-contour and landscape the BBPS site after demolition of buildings. The gradual draining of the WWRP verified that the pond liner integrity was intact with no obvious weak points which could generate any water leaks.
The next temporary maintenance shutdown of power generation equipment is planned for August 2016, including desludging of the WWRP if required.
Other Maintenance Work Undertaken On-site A leak on the town water inlet (located outside the boundary fence) was identified and fixed. This leak was believed to have been a potential contributing source to the site’s stormwater runoff. Subsequent visual monitoring by AETV staff suggests that the repair to the town water input pipe may have assisted in decreasing potential inputs to surface water flow around the WWRP as the amount of water around the WWRP has subsequently been less evident. Visual monitoring of the amount of surface water flow around the WWRP will continue to be undertaken. The ‘tongue-shaped’ cracking on the Cooling Tower (CT) discharge slab observed in the previous AER period has continued to be monitored visually. No obvious change in the size or extent of the crack has been noted when checked during the periodic site walkover inspections . Remedial works will be undertaken if changes are observed, or if further surface water flow is identified and can be traced back to this source.
2.4.3 Changes in Equipment Operations On-Site
To ramp up Tasmanian power generation, operations on the TVPS site were increased where possible. During the AER reporting period turbine operations at the TVPS underwent a number of changes as part of the variations in operational demands on each of the turbines, including: . The Mitsubishi CCGT (Unit 201) was in lay-up for part of the period, then was been brought back on line; . The Rolls Royce Trent OCGT (Unit 104) was also brought back on line (after overseas repair works and onsite maintenance works);
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. The FT8s (Pratt & Whitney OCGT units 101A, 101B, 102A, 102B, 103A and 103B) we re operated with and without the synchronous condensers, as power demands permitted, and as directed by maintenance work (with units being progressively being taken off- line and recommissioned); Other activities during this AER reporting period included: . Planned maintenance works (that had been on hold) associated with the Cooling Tower and Wastewater Retention Pond (WWRP) were undertaken, prior to each of these being brought back on line as part of the CCGT operations; and . TVPS operational shifts reverted to the former 24/7 basis. The State’s power shortfall was also met through the progressive establishment and operation of temporary diesel power generators at various locations within Tasmania, including on the neighbouring Hydro former Bell Bay Power Station (BBPS) site.
2.5 WATER USAGE
Raw water for TVPS operations is sourced from one of two water supplies: . Treated water from the Chimney Saddle Water Treatment Plant (WTP); or . Untreated water from the Curries River Dam. Both sources of water are treated prior to use in operations on-site as described in Section 2.7.5. The raw water volumes that were supplied from the Chimney Saddle Water Treatment Plant and Curries River Dam during the reporting period, and taken into the Raw Water Tank, and into the Cooling Tower are summarised in Table 3.
Table 3: Total Raw Water Usage (1 April 2015 to 31 March 2016)
Month Raw Water Tank Cooling Tower Water Source (m3) (m3) Apr-15 3,680 0 Chimney Saddle May-15 3,294 0 Chimney Saddle Jun-15 3,483 0 Chimney Saddle Jul-15 5,568 0 Chimney Saddle Aug-15 4,498 0 Chimney Saddle Sep-15 3,436 0 Chimney Saddle Oct-15 2,126 0 Chimney Saddle Nov-15 479 0 Chimney Saddle Dec-15 4,229 0 Chimney Saddle Jan-16 67,883 27,640 Curries River Dam Feb-16 129,170 57,823 Curries River Dam Mar-16 123,642 62,443 Curries River Dam Total 2015/16: 351,488 147,906
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In line with the Mitsubishi CCGT unit being in lay-up, the cooling tower was not operated during the first nine months of the AER reporting period (1 April to 31 December 2015). This is reflected in the low water usage for those months. When the Mitsubishi CCGT unit came back on-line, the water source was changed over to the Curries River Dam supply in order to meet the higher water usage requirements.
2.6 OPERATING HOURS AND FUEL USAGE OF THE TURBINES
Table 4 summarises the operational hours and fuel usage for all turbines that were operational at the TVPS during the reporting period. As per the previous AER reporting period, gas was the only fuel utilised on-site [i.e. no diesel (distillate) was burnt as fuel during the reporting period]. The total consumption of fuel over the reporting period was 4,552,759 GJ, which is equivalent to approximately 102,447 tonnes (using the conversion factor 44.44 GJ/tonnes, from National Pollutant Inventory Combustion in Boilers Manual Version 3.6 December 2011– www.npi.gov.au). This fuel was consumed over a total of approximately 9,787 hours (without consideration of the operation of the FT8s, resulting in an average consumption (fuel usage efficiency) of approximately 10.5 tonnes/hr, which is less than the license limit of 77 tonnes/hr, hence the operation was compliant with Condition Q1 (1.1). These calculations are based on the operational hours of the Mitsubishi CCGT and Rolls Royce OCGT Units only. Calculation of the total consumption of fuel for the site includes consideration of the time when the FT8s are operating as synchronous condensers, and as power generating turbines, which occurred for 9 of the 12 months.
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Table 4: TVPS Turbines Fuel Usage (1 April 2015 – 31 March 2016)
Mitsubishi Unit Rolls Royce Unit Pratt & Whitney - FT8 Units Unit 201 CCGT Unit 104 OCGT Unit 101 A / B Unit 102 A / B Unit 103 A / B Month Synchronous Synchronous Diesel Operating Operating Gas Usage Operating Operating Operating Synchronous Gas Usage GJ Gas Usage GJ Condenser Condenser GJ Hrs Hrs GJ Hrs Hrs Hrs Condenser Hrs Hrs Hrs
Apr-15 0.0 0.0 7.0 4,463.0 0.5 40.0 0.5 40.0 0.5 43.0 379.0 0 May-15 0.0 0.0 2.0 1,155.0 1.8 125.3 2.0 125.0 2.2 125.5 1,652.0 0 Jun-15 0.0 0.0 4.0 2,162.0 0.0 71.8 0.0 69.5 0.0 68.8 111.0 0 Jul-15 0.0 0.0 39.0 20,674.0 5.5 184.0 5.4 180.1 5.1 179.4 4,486.0 0 Aug-15 0.0 0.0 44.0 20,296.0 7.6 207.3 7.6 200.3 7.1 205.6 4,545.0 0 Sep-15 0.0 0.0 0.0 1.0 21.1 59.3 13.4 66.0 132.4 66.5 19,322.0 0 Oct-15 0.0 0.0 0.0 1.0 5.3 10.0 5.3 13.0 5.3 10.0 5,407.0 0 Nov-15 0.0 0.0 0.0 1.0 2.2 29.3 7.2 13.5 2.1 27.5 3,642.0 0 Dec-15 0.0 0.0 0.0 0.0 80.0 79.3 80.0 79.5 83.0 80.0 80,486.0 0 Jan-16 301.0 473,850.0 0.0 0.0 473.5 0.0 488.0 0.0 461.5 0.0 445,075.0 0 Feb-16 696.0 1,156,580.0 0.0 0.0 681.0 0.0 648.0 0.0 538.0 0.0 526,965.0 0 Mar-16 744.0 1,225,804.0 27.0 18,058.0 705.8 0.0 355.0 0.0 690.8 0.0 537,644.0 0 Total 1,741.0 2,856,234.0 123.0 66,811.0 1,984.3 806.3 1,612.3 786.9 1,928.0 806.3 1,629,714.0 0
Total gas usage (as GJ): 4,552,759 GJ Total gas usage (as Tonnes): 102,447 T Operating hours: 9,787 hrs Fuel usage (efficiency): 10.47 T/hr
The Mitsubishi CCGT was in lay-up and did not operate during the period May 2014 to January 2016. The FT8s were operated to full capacity during the months January to March 2016, i.e. not as synchronous condensers.
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2.7 MONITORING DATA
2.7.1 EPN Maximum Quantity Regulatory Limits
The TVPS is required to comply with the regulatory limits reproduced in Table 5. Implementation and compliance for the reporting period are presented in the table against each condition. The TVPS has been compliant with all regulatory compliance limits during the 2015 -16 reporting period.
Table 5: Compliance with EPN Maximum Quantity Regulatory Limits
EPN Condition Implementation Compliance 7898/1 Condition No.
Q1 (1.1) 77 tonnes/hour of total Fuel usage data are provided on a Compliant capacity to consume fuel monthly basis (refer Table 4). The fuel consumption for the period was on average 10.47 tonnes/hour. No diesel was consumed during the period.
Q1 (1.2) 5 megalitres per day of Maximum discharge volume for the Compliant discharge of wastewater to reporting period was 116.4 kL/hr, Donovans Bay which complies with the limit. (Equivalent to 208.3 kL/hr)
Q1 (1.3) 550 megalitres per annum Discharge of wastewater to Donovans Compliant of discharge of wastewater Bay (based on daily discharge to Donovans Bay averages) was 8.2 ML for the period. Total discharge is therefore compliant with the annual discharge limit.
Q1 (1.4) 100 hours per 12 month No consumption of distillate fuel for Compliant period of burning of the period. distillate fuel
2.7.2 Stack Testing
In April 2014, the EPA approved a temporary amendment of EPN Condition A3 relating to stack testing to address operational changes at AETV (EPA Tasmania, letter dated 3 April 2014). The amendment stipulates that quarterly stack testing is required only during the period that the Mitsubishi CCGT is producing power for export to the grid. On this basis, no stack testing was undertaken on the CCGT in the normally scheduled June, September and December 2015 stack testing events.
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Ektimo (ETC) conducted all other quarterly stack emission testing events during the reporting period [indicative months for testing are June 2015 (quarter 2), September 2015 (quarter 3), December 2015 (quarter 4), and March 2016 (quarter 1)], The results of these reports have been summarised in a table provided in Appendix D1, and the reports included in Appendices D2 to D6). In accordance with Condition A3(2), the stack of a Pratt and Whitney OCGT was sampled each quarter (turbine units 101, 102 or 103).
All stacks are monitored for NOx (expressed as 15% O 2). Air emission results were compared to the limits for stack emissions as provided in Condition A2(2) of EPN 7898/1 and detailed in Table 6, with all stack emissions results for the reporting period found to be within the E PN emission limits.
On one occasion, NOx emissions from the Rolls Royce OCGT was recorded at a concentration (62 mg/m3) that was just above the EPN limit (60 mg/m3). The elevated result was determined to have most likely been due to the unit not being up to stable operating conditions at the time of
testing. Upon retesting of the unit, the NOx was recorded as 46 mg/m3, which is within the EPN limit. The retest report is included in Appendix D3. The Rolls Royce OCGT was taken offline for warranty recall maintenance works, with it taken offline in September 2015 for repairs. As per the previous reporting period, the turbines operated only on natural gas during the reporting period.
Table 6: Stack Testing Results NOx (as NO2 @ 15% O2) (mg/m3)
Machine EPN Quarter 2 Quarter 3 Quarter 4 Quarter 1 (25/5/2015) (25/8/2015) (2/12/2015) (31/3/2016) limit
Unit 201 - Mitsubishi CCGT 60 # # # 48
Unit 104 - Rolls Royce Trent OCGT 60 62a 57 * 33
Unit 101A - Pratt and Whitney OCGT 70 67 69 69 54
Unit 101B - Pratt and Whitney OCGT 70 * * 69.7 37
Unit 102A - Pratt and Whitney OCGT 70 69 66 69.8 *
Unit 102B - Pratt and Whitney OCGT 70 * * * *
Unit 103A - Pratt and Whitney OCGT 70 67 68 67 55
Unit 103B - Pratt and Whitney OCGT 70 * * * *
# No stack testing as the Mitsubishi CCGT was in lay-up for this period. * Unit not tested during this sampling round.
a 62 The NO x stack emission was non- compliant with relevant EPN limit. A re-test of U104 NO x stack emissions found the result was recorded under unstable operational conditions. The retest result of 46 mg/m 3 was within EPN limit.
Green The NO x stack emission was compliant with relevant EPN limit
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2.7.3 Water Quality Monitoring Overview
AETV monitors the water quality of discharges from the TVPS site and potential impact on the ambient receiving environment through the collection of grab samples from locations as shown in Figure 1. These locations include: . WWRP discharge (DP1); . Stormwater discharge (DP2); . Near shore inline temperature (M1-M4); and . Donovans Bay (D1-D4). The monitoring programs relating to these sites are described in subsequent sections of this report, together with discussion of monitoring results collected during the AER reporting period.
2.7.4 Inline Wastewater Flow and Water Quality Monitoring
Wastewater discharge is generated during normal operations at the TVPS, when the Mitsubishi CCGT and associated CT is in operation. A lesser amount is generated when the Mitsubishi CCGT is offline and the open cycle units are required to operate. Small quantities of water are still processed in the site’s Water Treatment Plant to keep it operable for such occasions. Inline monitoring probes at the outlet weir from the WWRP measure the following: . Temperature (ºC); . pH;
. Flow Rate (m3/hr = kL/hr); and . Dissolved Oxygen (% saturation). These parameters are measured continuously and a daily average is generated. Graphical representations of the daily averages from April 2015 to March 2016 are presented in subsequent sections. Additional probes (including a conductivity probe) have been installed at the wastewater discharge point, which is within the flume on Donovans Bay. However the flume probe readings are not always representative of discharge quality as the flume is periodically flooded by tidal bay water; the readings do however provide an additional discharge monitoring tool. Temperature Discharge water temperature is continuously monitored at the WWRP discharge by a temperature probe. Readings are captured within the site historian. Limited data was collected during the period however as the discharge flow from DP1 was significantly reduced when the Mitsubishi CCGT was in lay-up (varying from less than 4 m3/hr to no flow).
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Stormwater M1 New OC Detention Pond Plant Bell Bay Line DP2
Fire Water East Tamar Highway M2 Tank
Construction M3 3 x 35 MW CCGT T1 D2 Laydown D1 OCGT Plants Plant
Gas Metering Station Cooling Tower
Stormwater Silt Trap Exi sting Fuel
Tanks Cooling Tower Water Bell Bay Detention Pond Power Station
M4
T2 Big Bay 5445000
Tida l Flow
Tamar River
D3 Dirty Bay
Legend
5444000 ! Monitoring Sites ! Preliminary Chlorophyll-a and Nutrient sampling locations Diffuse and point sources of contamination D4 Bell Bay Line
Wilmores Bluff Buffer New Access Road
Datum: GDA94 Grid: MGA Zone 55 Tamar Valley Power Station Date: 1 Sept 2010 Prepared by: SEMF Pty Ltd Bell Bay TasMap: Bell Bay 4844 Project: Tamar Valley Power Station Projectnumber: 2946.002 Water Quality Monitoring locations 0100 200 Website: www.semf.com.au Meters ·
Periods of low or intermittent flow make data collection difficult and readings potentially unreliable, as the inline temperature probe may not be fully, or consistently, immersed within the flow of water. The WWRP inline daily average discharge temperature ranges from 5.18 to 26.43 degrees Celsius. Refer to Section 2.7.5 for further discussion of inline wastewater temperature when compared to ambient and other discharge from DP1. pH Condition E1(1) of the EPN states that the pH in wastewater discharge should be between the range of 6.5 and 8.5. Wastewater pH is monitored continuously at the discharge of the WWRP via an inline pH probe. The inline average daily pH results for the year are shown in Figure 2, and provided in Appendix E1.
Figure 2: Wastewater outfall - Inline pH (daily averages)
Inline daily average pH monitoring during the reporting period showed minor excursion peaks above the upper EPN limit during three periods:
1. The 22nd and 23rd August 2015, with readings of 8.69 and 8.62 respectively;
2. The 14th and 15th November, with readings of 8.63 and 8.57 respectively; and
3. The 22nd November 2015 to 30th December 2015, with readings ranging from 8.71 to 9.4. In addition, three minor excursion peaks were recorded below the lower EPN limit on:
1. The 3rd and 4th April 2015, with readings of 6.29 and 6.48 respectively;
2. The 8th to 10th April, with readings ranging from 6.43 to 6.49; and
3. The 5th May to 12 May 2015, with readings ranging from 6.23 to 6.42.
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The lack of pH readings recorded during the period 8 th to 17th August 2015 resulted from the probe being out of service due to a failure of the power supply to the inline meter. The subsequent couple of elevated pH readings in August (above the EPN limit) were considered likely to be erroneous due to an operational problem. Field notes indicate that the dissolved oxygen and pH meter were replaced within several days by the 26th August. The series of other results in field notes from April 2015, May 2015, and October 2015 to January 2016, are considered spurious as discharge water flows were very low and the probe may not have always been immersed in water which may have led to poor probe functioning (pH prob es should be kept moist for good operation. Flow rate During the AER reporting period, the daily flow rate of wastewater discharged to Donovans Bay ranged from no discharge to a maximum of 116.4 kL/hr, averaging 22.4 kL/hr. The maximum flow rate of 116.4 kL/hr is within the 5 ML/day regulatory limit (which is equivalent to 208.3 kL/hr). Refer to Figure 3 for comparison of the daily average flow rate of wastewater discharge to the regulatory limit [Condition Q1(1.2)]. The overall discharge volume over the reporting period was 8.2 ML per year, which is within the 550 ML/yr regulatory limit [Condition Q1(1.3)].
Figure 3: Wastewater outfall - Inline flow rate (daily averages)
Dissolved Oxygen Condition E1 (2) of the EPN states that the Dissolved Oxygen (DO) concentrations must be between 80% and 100% saturation. Wastewater DO levels are monitored continuously at the discharge of the WWRP via an inline probe. A graph of inline DO data is provided in Figure 4. Results commonly exceeded the upper
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EPN Limit of 100% O2 saturation, with the highest reading of 145.99% O 2 saturation on the 10th January 2016. As referenced in previous AERs, it should be noted that the inline probe is located within the discharge pipe situated at the discharge sump, next to the WWRP. Wastewater entering the pipe from the sump is likely to be aerated due to turbulence and it is possible that this situation results in super saturation of the wastewater with respect to dissolved oxygen. The issues with the location of the DO probe and its high readings have been highlighted by the differences between the hand-held monthly wastewater readings, which have generally shown that DO% saturation in the wastewater is typically compliant; the calibrated hand-held meter typically reads DO% at between 2 – 15% lower than the fixed inline probe. Exceedances of the lower EPN limit (80% DO saturation) was recorded on two isolated occasions, on 7th July 2015 and 18th August 2015 with levels of 64.17 and 43.41% saturation respectively. These low readings are likely to be erroneous, as they occurred during the period of the 8th to 17th August 2015 when the probe was out of service due to a failure of the power supply to the meter.
Figure 4: Wastewater outfall - Inline dissolved oxygen (daily averages)
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2.7.5 Wastewater Inputs, Treatment and Discharge
Description of Process Water Input and On-site Treatment Water for on-site plant operations is sourced via TasWater from either the Chimney Saddle Water Treatment Plant (WTP), or from the Curries River Dam water (which is untreated). The water source is determined by TasWater based on the availability of water at the Chimney Saddle WTP. Water usage details are provided in 2.5. Regardless of the source, all water requires prior treatment at the on-site AETV WTP to ensure it is fit for use within the Mitsubishi CCGT. On-site water treatment consists of four main stages: . Stage 1: A self-cleaning coarse filter; . Stage 2: Ultra-filtration - filters are backwashed on average three times per day during treatment of water from Chimney Saddle WTP, and every 30 minutes during treatment of water from Curries River Dam. The amount of water used to backwash filters during filtration of water from Curries River Dam is considerably higher due to the higher amount of impurities present; and . Stages 3 and 4: Water from Stage 2 is treated using reverse osmosis and mixed bed ion exchange to complete the treatment process. Description of Wastewater Output Currently wastewater output sources consist of: . Coarse filtration backwash water from the on-site WTP; . Ultra-Filtration Backwash water from the on-site water treatment plant; . Reverse osmosis (RO) brine; . Demineralisation plant brine; . WTP Clean-in-Place (CIP) procedures; . Rain and wash down water collected in various bunds; . Site process drainage via oil separation pit; . Cooling tower blowdown (via a WWRP) (when the CT is operational); . Heat Recovery Steam Generator (HRSG) blowdown (when the CCGT is operational); and . Wastewater from pumps and glands associated with the operation of CCGT (when operational). Wastewater emissions report to Discharge Point 1 (D1) via the wastewater retention pond, sump, and then underground pipe and culvert. Discharge Point D1 discharges into Donovans Bay via the old Bell Bay Power Station flume as shown in the Water quality monitoring locations figure (Figure 1).
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Wastewater Monitoring Condition M3 of the EPN requires that wastewater quality at D1 be monitored via a grab sample on a monthly basis for the following parameters: . Biochemical oxygen demand; . Total suspended solids; . Ammonia; . Total nitrogen; . Total phosphorous; and . Free chlorine. AETV staff have been responsible for site D1 wastewater sampling since March 2012. Construction of a sump in the discharge flume has made discharge point water quality sampling generally more feasible, but consideration of tidal inputs is still required, as the sump is periodically flooded by bay water. AETV also monitors temperature, and other water quality readings, at several near -shore locations (M1 to M4) during the monthly wastewater sampling events (Figure 1). These measurements have been an effective tool for monitoring ambient receiving water temperature and comparing it with WWRP discharge water temperature. Limited results are available for the reporting period however, as the decision was made to not sample when the Mitsubishi CCGT was in layup. This meant that there was only four near shore sampling events undertaken. As mentioned in 2.7.4, monitoring probes that measure pH, DO and temperature have been installed in the sump on the wastewater discharge flume. A conductivity probe has also been installed to estimate the ratio of discharge to estuarine water in the sump, as the flume is prone to tidal inundation. Where the conductivity meter reflects: . Freshwater dominance (low EC), then readings are presumed to represent wastewater inflows; and . Saline water dominance (high EC), then the readings are taken to represent the water quality of Donovans Bay. Near Shore Temperature (& Comparison of DP1 with Ambient Water Temperatures) The temperature of wastewater discharged via WWRP outfall (DP1) is monitored as required by EPN Condition E4 and compared to that of the ambient receiving water environment at sampling locations (M1-M3). Historical results provided in a graph (Figure 5) show: . Correlation of the historical water temperature result trends for ambient near shore, WWRP inline and DP1 discharge water; and . Consistent compliance of DP1 discharge water temperature within the range of plus or minus seven (7) degrees Celsius of the receiving (near shore) ambient water temperature (as required by Condition E4 of the EPN).
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Figure 5: Comparison of ambient near shore, WWRP inline and DP1 outfall discharge temperature
(Condition E4 of the EPN requires DP1 to be within +/- 7 degrees Celsius of the ambient water temperature )
Near Shore Monitoring of Other Parameters AETV continues to voluntarily monitor other water quality parameters at these near shore monitoring locations as follows: . Monthly grab samples analysed for Ammonia-nitrogen, Chlorophyll-a, Total Phosphorous and Total Nitrogen; and . Monthly inline monitoring samples analysed for pH, Dissolved Oxygen, Temperature, Total Dissolved Solids (TDS), Oxidation Reduction Potential (ORP). A summary of other near shore water quality monitoring results collected by AETV is provided in Appendix F for information.
Wastewater Monitoring Results
Wastewater flow volumes were significantly diminished, with low flows recorded for much of the AER reporting period, and no discharge from November 2015 to January 2016. This was due to the Mitsubishi CCGT and CT being in lay-up. Wastewater discharge increased when the Mitsubishi CCGT came back on line on 19th January 2016.
The results for all parameters analysed for wastewater discharge samples (BOD, TSS, Ammonia, Total Nitrogen, Total Phosphorous, Free Chlorine) were reported at concentrations below the applicable EPN limits during the AER period, with the exception of the March 2016 sample which recorded an elevated total suspended solids concentration.
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The elevated TSS result was 16 mg/L which is above the EPN regulatory limit of 10 mg/L. AETV consider that the cause of the elevated suspended solids in discharge on this occasion may have resulted from extremely variable wastewater discharge flow rates, which prevented the WWRP from operating effectively as a sediment settling pond.
While discharge of wastewater with its elevated TSS level was considered unlikely to have a material impact on the receiving environment, it was reported to the EPA for information as it could have been considered an exceedance. Informal discussion with the EPA in response to this notification ascertained that it was not considered to be an exceedance as it was during a period of non - continuous flow and a period of variable, and abnormal operations on-site (pers.comm. Mr R. Trimble in April 2016). EPN limits are typically applicable to normal operating conditions.
Refer to Figure 6 for the graphical representations of results for each of these parameters during the AER reporting period. A summary of the related data is provided in Appendix E2.
Total Petroleum Hydrocarbons
Analysis for Total Petroleum Hydrocarbons (TPH) in wastewater is not a requirement of the EPN, however AETV analyse for their possible presence due to the known sources in wastewater.
During the reporting period, the TPH levels recorded in wastewater discharge were as follows:
. Below the laboratory detection level (<20 µg/L) in the months April to August 2015;
. No results are available for the period September 2015 to January 2016 as no samples were collected due to low flow, or no discharge from the WWRP; and
. Concentrations reported in February and March 2016 were significantly higher than in previous months (results were 80 and 110 µg/L respectively).
As per the previous reporting period there was no visual observation of oily sheen at the outfall. The notable increase in C6-C9 petroleum hydrocarbon fractions in wastewater discharge recorded during the last two months of the AER reporting period, are considered likely to have occurred as a result of inconsistent flows or changes in operations relating to one or more of the following notable changes that occurred at that time:
. Switch to Curries River Dam water supply and use of flocculants to remove solids from the water column; and/or
. Recommissioning of the Mitsubishi CCGT, CT and WWRP.
Although no TPH limit is set for wastewater, 0.5 mg/L (<500 μg/L) is the EPN limit set for stormwater discharge from the site, and is considered applicable to wastewater discharge also.
Note that the detection of TPH also occurred during the previous 2014/15 AER reporting period whilst the site was operating on Curries River Dam input water and was suspected to be related to the addition of a polymer to the cooling tower water, and/or presence of Trihalomethanes. The Curries River Dam water requires additional treatment as it is a more coloured water stream, with suspended solids requiring removal before use within TVPS turbines. The composition of the polymer flocculent used is confidential, but it may contain some TPH compounds.
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Figure 6: Wastewater outfall Monitoring Results Summary (mg/L)
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Laboratory reports (prior to this reporting period) have occasionally noted that the TPH concentrations could be due to the presence of Trihalomethanes (THMs). THMs can form when chlorine reacts with organic matter (such as filter backwash material from Curries River water which is flushed to the WWRP).
AETV is continuing to monitor the presence and levels of C 6-C9 petroleum hydrocarbons, and the possible association with THMs and the flocculant polymer.
Trihalomethanes
Monthly analysis for the presence of Trihalomethanes in discharge water commenced in January 2015, while monthly sampling of raw input water and testing for THMs commenced in February 2015. AETV also analyse for their possible presence to investigate the potential correlation with TPH.
During the reporting period, the THMs concentrations recorded in wastewater discharge were as follows:
. Low, or below the laboratory detection level (<5 µg/L) in the months April to August 2015;
. No results are available for the period September 2015 to January 2016 as no samples were collected due to low flow, or there was no discharge from the WWRP while the Mitsubishi CCGT and CT were in lay-up; and
. The concentrations reported for February and March 2016, are significantly more elevated than previous results (199 and 260 µg/L respectively)
Note also: Based on informal discussion between AETV, EPA and SEMF, it was decided that THMs would be omitted from future wastewater discharge testing until the CT was operational again, or if the suspected flocculent source is being used in the wastewater system (i.e. when the water source reverts to the Currie River Dam supply).
Investigation and Possible TPH – THM correlation
Over the reporting period, the concentrations of THMs in input raw water changed noticeably when on the different water supplies, and the use of the CT and related flocculent. The changes were as follows: . Higher concentrations in raw water to wastewater when operating on the Chimney Saddle water supply, suggesting that THM inputs may actually be diluted by plant processes; and . Significant increase in concentrations observed from below detection level in Chimney Saddle water supply(<5 µg/L), increasing to concentrations of 199 and 260 µg/L measured in wastewater after treatment with flocculent and use in the TVPS plant operations. This supports the previous hypothesis that TPH detections are not due to input raw water, or formation of THMs due to reactions between chlorine and organic compounds, but instead, TPH may be due to the flocculent polymer which was being used in the CT when the TVPS was operating on Curries River water.
Additional sampling was undertaken for further investigation which showed similar results for C6-C9 fractions TPH (90mg/L) and THM (166 mg/L) in wastewater discharge and ascertained that the levels
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were below detection levels in samples collected from the CT and Water Treatment Plant. This supported the hypotheses that THMs are being introduced to the system through the addition of flocculent polymer and there is a potential correlation of TPH and THM.
The possible correlation of the presence of TPH and THMs is shown in Figure 7 below.
Figure 7: Investigation of possible correlation between presence of TPH and THM in wastewater (mg/L)
The TPH and THM results are above previous typical levels recorded in wastewater discharge. In the absence of an EPN limit for total TPH, the results are compared to the regulatory limit for Total TPH in stormwater (500 µg/L). While the results are well within the stormwater limit, AETV will undertake continue to monitor TPH and THM levels and investigation likely s ources further as needed. Further ongoing monitoring of this issue will be undertaken to clarify the situation and identify possible solutions.
2.7.6 Eutrophication (Toxicity) Monitoring
Based on review of data collected since 2010 from the Eutrophication Monitoring Program the EPA approved the discontinuation of the Eutrophication Monitoring (EPA correspondence dated 19th May 2015, Appendix G). AETV have continued to undertake eutrophication monitoring at near shore locations M1 – M4 during this AER reporting period on a voluntary basis. The results are provided in Appendix F for information.
2.7.7 Biological Monitoring
The last biennial biological monitoring survey of Donovans Bay was undertaken by Aquenal in October 2014 and was reported in the 2014/15 AER. The survey concluded that there was compliance with the in-faunal assemblages survey requirements stipulated under EPN condition
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M6 and made recommendations for variation of the monitoring program . On this basis, a request for variation of the monitoring program was submitted to the Director EPA for consideration and the following changes were approved: . Water Quality and Biological Monitoring Program (as defined in Schedule 1 of EPN 7898/1) was amended to exclude the requirement to survey for bacteria and dinoflagellate cysts; and . The monitoring frequency for in-faunal assemblages (as required under Condition M6 of EPN 7898/1) be reduced from biennial to a triennial. On this basis the next biological monitoring event is due in September 2017).
The EPA letter of response (dated 19th May 2015) is provided in Appendix G.
2.7.8 Stormwater Monitoring
Stormwater from the TVPS site is directed to the Stormwater Settling Pond, northwest of the power station. Discharge from the settling pond is via a rocky spill way, and disch arge is sampled as a grab sample at sampling point DP2. Stormwater related conditions in EPN 7898/1 are as follows: . Condition DS1 requires that stormwater only be discharged from DP2 (as shown Figure 1) to Donovans Bay; . Condition E3 requires that polluted stormwater from the land be collected and treated prior to discharge, including provision of sediment fences and appropriately sized and maintained sediment settling ponds. All other stormwater must be visibly free of oil, grease and unnatural discolouration and must not be visibly more turbid than the receiving waters; and . Condition M5 of EPN 7898/1 requires that a grab sample be collected quarterly from Discharge Point 2 (DP2). These sampling rounds may be modified to coincide with discharge. Parameters to be analysed are:
- Biochemical oxygen demand (BOD);
- Total suspended solids (TSS);
- Total petroleum hydrocarbons (TPH); and
- Oil and grease.
Stormwater emission limits are set in Condition E2 of EPN 7898/1.
2.7.9 Stormwater Monitoring Results
Water quality monitoring of stormwater discharged from DP2 was only possible during two of the four required quarterly monitoring events as there were insufficient flows for stormwater sample collection, or lack of discharge from DP2.
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Quarterly samples were collected in May 2015 and September 2015, but were not possible in December 2015 and March 2016. As shown in Table 7, all analytical results for parameters tested for in the May 2015 and September 2016 sampling rounds were within regulatory limits. On this basis and due to the limited data, no graphs of analytical results have been generated for water quality parameter analysis of stormwater.
Table 7: Quarterly Stormwater Discharge (DP2) Monitoring Results (mg/L)
2.7.10 Donovans Bay Monitoring
Condition M6 of EPN 7898/1 outlines the site’s EPN requirements for monitoring of the receiving environment within Donovans Bay. Locations and Frequency Monitoring was undertaken by SEMF personnel on behalf of AETV on a quarterly basis (typically in March, June, September and December). Samples were collected from two locations situated within Donovans Bay (D1 and D2) and two control points (D3 and D4) located upstream in the Tamar River, within similar bays (refer to Figure 1). Sampling locations can be described as follows: D1: Location closest to wastewater discharge point; D2: Location approximately 50 to 75 metres to the west of wastewater discharge point within Donovans Bay; D3: Control point in Dirty Bay; and D4: Control point near Wilmores Bluff.
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Sampling Methods & Water Quality Parameters Sampling occurs close to high tide, at two discrete depths [1 metre below surface (1mB) and 1 metre above the sea bed (1mA)], at each sampling location. Where seasonal/tidal variability reduces the depth of water to less than approximately 2.5 metres, then only one sample is collected at a depth of 1m below the surface. This has commonly occurred at the Donovans Bay sampling locations (D1 and D2). Water quality parameters monitored quarterly include: . pH, dissolved oxygen, turbidity, salinity (measured in the field as conductivity); . Nutrients (Total Phosphorous, Total Nitrogen, Ammonia); . Chlorophyll-a; and . Trihalomethanes. AETV introduced analysis for Trihalomethanes in December 2014. The rationale for the inclusion of the parameter is presented in Section 2.7.5. Analysis for THMs was temporarily suspended while the Mitsubishi CCGT was in lay-up and resumed upon its recommissioning. Donovans Bay Field Monitoring Results Spreadsheets of Donovans Bay (DB) water quality field results are provided in Appendix H. Graphs of historical parameter trends are included with individual parameters discussed in this section. Note: A missing data sheet in June 2015, has resulted in a gap in the graphs. Donovans Bay Field pH The summary of pH field results for each of the 4 monitoring locations, at depths of 1m below surface and 1 meter above the seafloor since 2011 are plotted in Figure 8. Trends in pH in Donovans Bay and the control points are very similar at both depths, reflecting no noticeable pH impact from the wastewater discharge on the receiving environment of Donovans Bay. Donovans Bay Field Dissolved Oxygen The summary of Dissolved Oxygen (DO) field results for each of the 4 monitoring locations at 1 metre below surface and 1 metre above the seafloor are plotted in Figure 9. Regardless of depth, dissolved oxygen concentrations at D1 and D2 were consistent with those at the two control locations, D3 and D4, suggesting that wastewater discharge from the TVPS is not having a noticeable impact on DO concentrations in the receiving environment of Donovans Bay. Oxygen concentrations are constantly impacted by natural cyclic variations, such as season, tidal influences (which affect EC and the capacity of water to retain dissolved oxygen), rainfall, temperature, rates of photosynthesis, etc. However, notable downward trends in oxygen concentrations can also be indicative of water system impacts, such as organic pollution.
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Figure 8: Donovans Bay (1mB & 1mA) – Field pH
(Note: The gap in data relates to a missing datasheet)
Figure 9: Donovans Bay (1mB & 1mA) – Field dissolved oxygen (mg/L)
(Note: The gap in data relates to a missing datasheet)
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The DO results in Figure 9 show a discernible: . Upward trend (increase in DO) across all sites and depths (including the control); followed by a . Downward trend (decrease in DO) over the reporting period from September 2015 to March 2016 and possible increased organic load. In this instance, any potential anthropogenic impacts would appear to be indicative of the broader river environment and not associated with the power station specifically, since the control points DO trends are very similar to those in Donovans Bay. Donovans Bay Field ORP The Oxidation Reduction Potential (ORP) probe measures the cleanliness of the water and its ability to breakdown contaminants. It works by measuring the amount of dissolved oxygen in the water. As explanation, high levels of organic contaminants in the water column, would typically result in greater consumption of oxygen, and therefore lower dissolved oxygen present (as the organics are consuming the oxygen). Refer to Figure 10 for the results for ORP in Donovans Bay 1 metre below the surface and 1 metre above the seafloor respectively.
Figure 10: Donovans Bay (1mB & 1mA) – Field ORP (mV)
(Note: The gap in data relates to a missing datasheet)
As for DO results, the ORP results show an initial upward, followed by downward trend with strong correlation across all sites and depths. This is indicative of a broader river environment variation rather than associated with the discharges from the TVPS operation. The result for ORP at D2 one metre below was significantly lower than other results and monitoring locations on two occasions; with 52 mV recorded on 1 October 2015 and 5 m V
Page 28 of 50 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) recorded on 9 December 2015. Given the close correlation of parameters typically recorded across sites, these results are questionable and possibly erroneous. Donovans Bay Field Conductivity Conductivity field results for each of the 4 monitoring locations, at 1 m below surface and 1 m above the seafloor are plotted in Figure 11, respectively. These graphs illustrate that samples collected at each depth and site to have generally similar concentration trends which suggests that changes relate to that of the broader river environment.
Figure 11: Donovans Bay (1mB & 1mA) – Field Conductivity (µS)
(Note: The gap in data relates to a missing datasheet) Donovans Bay Field Turbidity Turbidity results for each of the 4 monitoring locations, at 1 m below surface and 1 m above the seafloor are plotted in Figure 12. Turbidity results showed a high degree of consistency across all sites (Donovans Bay and control points) with all results close in value, but less than 1.67 NTU during the reporting period, reflecting the lack of noticeable impact from TVPS wastewater discharge. Donovans Bay Nutrients Graphs of total nitrogen, ammonia and total phosphorus results over the reporting period, at two depths from locations D1 through to D4, are provided below and tabulated in Appendix H. Results can be summarised as follows: Total nitrogen as N concentrations ranged from below the detection limit <0.1 mg/L to 0.7 mg/L across the 2015/16 sampling period (1 April 2015 to 31 March 2016), with concentrations typically trending upwards to elevated levels across most sites and depths as shown in Figure 13. The exception being sites D2 1mB and D4 1mA which both recorded higher lev els of Total Nitrogen in the December sampling event, then dropped in samples collected during the March sampling event. Their trends were similar to those recorded for Kjeldahl nitrogen.
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Figure 12: Donovans Bay (1mB & 1mA) – Field Turbidity (NTU)
(Note: The gap in data relates to a missing datasheet)
Figure 13: Donovans Bay (1mB & 1mA) - Total Nitrogen (mg/L)
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Ammonia as N concentrations ranged from 0.02 to 0.17 mg/L during the reporting period. In the absence of ambient limits, comparison of ammonia levels for these sites against regulatory limits for wastewater discharge shows that the levels are within those levels (0.5mg/L). Ammonia levels generally following a downward trend over the reporting pe riod, with similar levels recorded across all sites. The exception was the October sampling at sites D 3 1mB as it also exhibited an increase, and D2 1mB & 1mA (these sites are the associated with the wastewater outfall and nearby site), where an increase in ammonia level was recorded despite low flows from the WWRP and ammonia levels in wastewater discharge (D1 1mB) being lower. This suggests that increased levels in proximity to site D2 may have been influenced by ambient river flows or contributions from the stormwater pond. Site D4 is located across the river, strengthening the possibility that ambient river flows was an influencing factor. The possible role of the stormwater pond will be investigated with its capacity to store and treat collected wa ter assessed. Ammonia results for each of the 4 monitoring locations, at 1 m below surface and 1 m above the seafloor are plotted in Figure 14.
Figure 14: Donovans Bay (1mB & 1mA) - Ammonia (mg/L)
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Nitrite and nitrate as N concentrations ranged from below the detection limit (<0.01mg/L) to 0.11mg/L, with concentrations across all sites tending in a similar manner, with the exception of an independent increase of Nitrite and Nitrate at D4 to 0.11mg/L, while all other sites (D1, D2 & D3) remained at 0.03 to 0.06 mg/L at all depths. Nitrate and nitrate results for each of the 4 monitoring locations, at 1 m below surface and 1 m above the seafloor are plotted in Figure 15.
Figure 15: Donovans Bay (1mB & 1mA) - Nitrite and Nitrate (mg/L)
Total phosphorous as P concentrations were less than 0.12 mg/L across all sites and depths throughout the sampling period, with the exception being at one of the control sites, Site D4, at both depths (one metre below the surface and 1 metre above the seafloor), which recorded a higher concentration of 0.19 and 0.18 mg/L respectively (Refer to Figure 16). Donovans Bay Chlorophyll-a Chlorophyll-a concentration is a measure of eutrophication which can occur in receiving waters that may be affected by high nutrient inputs. Chlorophyll-a concentrations remained low (all 2 mg/m3 or less) at all sampling locations and Donovans Bay. Control sites exhibited similar concentration trends (refer to Figure 17). Low nutrient concentrations wastewater discharges from the TVPS are therefore considered to be having an insignificant impact on Donovans Bay and its receiving water quality.
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Figure 16: Donovans Bay (1mB & 1mA) - Total Phosphorous (mg/L)
Figure 17: Donovans Bay (1mB & 1mA) - Chlorophyll-a (mg/L)
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2.7.11 Tamar River
Ongoing monitoring of the Tamar River at sampling locations T1 and T2 as specified in Conditions M2 and M4 of EPN 7898/1 has not been required since January 2008 when EPA approved disposal of wastewater from the wastewater retention pond via Discharge Point 1 .
2.7.12 Hazardous Materials
The TVPS site is deemed to be a Manifest Quantity Workplace in accordance with Work Health & Safety Regulations 2012. The majority of dangerous substances stored at the TVPS fall into three main categories: . Diesel and oils; . Water treatment chemicals; and . Natural gas. There have been no significant changes to the types or quantities of hazardous materials stored and used on site during the AER reporting period. SEMF understands that these materials have continued to be stored and handled on site in accordance with Conditions H1 & H2 of the EPN, with . Materials stored in an approved manner with bunds as necessary; and . Spill kits maintained at appropriate locations for the emergency containment of spilled material that has potential to cause environmental harm.
2.7.13 Noise
Noise Generating Activities Condition N3 of the EPN requires that a record be kept of any noise-generating activities. AETV keeps a complete log of all its operations and operating conditions, which allows for retrospective reference should any noise complaints be received. AETV has a plant historian (PI) and unit log books, which record the operating times of all the turbines and other machinery on site. This database can be accessed at any time and can be used to compare timing of activities at the site with noise-related issues. Furthermore, all work carried out on the plant and equipment is captured in a computerised maintenance management system, which allows tracking of repairs or modifications that have been undertaken. Upon completion of works to install new engine heaters on all FT8s in November 2015, a reduction in noise emissions was observed. VIPAC was commissioned to undertake testing to measure the perceived noise reduction (report is yet to be received). Noise Equipment Calibration During the reporting period, operational noise has been monitored by continuous noise equipment monitoring equipment that has been installed on-site. This equipment was recalibrated during the period.
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A review of data by VIPAC, identified that recalibration of noise monitoring equipment was needed, with the works undertaken in early 2016. Site-Wide Noise Survey and Modelling As reported in the 2014/15 AER, AETV requested that the EPA accept the January 2015 environmental noise survey (carried out to check for potential noise impact from noise emissions from the FT8s operating as synchronous condensers) as an annual environmental noise survey for the 2015 calendar year. This request was due to the Mitsubishi CCGT being in long term lay - up, and other associated noise-emitting infrastructure (e.g. Cooling Tower) not being in operation. Correspondence from the Director of the EPA confirmed that the combined approach of monitoring and modelling as described in the report (VIPAC, 2015a) satisfied the requirement of the annual noise monitoring survey requirement for 2015 as required under Condition N4 of the EPN (EPA correspondence dated 19 May 2015a). An environmental noise survey was programmed to be undertaken by VIPAC in February/March 2016 in order to meet the requirements of Condition N2 of the EPN for 2016. The highly variable nature of operations during that programmed time resulted in the EPA agreeing to the deferment of the 2015/16 environmental noise survey. It is anticipated that the 2016/17 noise survey will be conducted during the period of October 2016 to March 2017 with the survey report findings being discussed in the 2016/17 AER report.
2.8 SITE INSPECTIONS
TVPS personnel conduct routine daily inspections of the power station plant and associated installation, and any environmental incidents have generally been detected by staff during their daily activities. AETV has a formal incident reporting framework. Completion of periodic site field inspection at the time of water quality sampling (i.e. monthly) is ongoing and has been effective in the identification of issues and implementation of actions for rectification. Issues identified during the reporting period include: . The stormwater or wastewater management systems were reported to be operating effectively across all months, with no significant water quality or management issues identified. The stormwater and wastewater management systems were typically reported to be clean and clear when flowing. There was however, little or no flow from the WWRP and SW discharge points during some months due to the Mitsubishi CCGT and CT being in lay -up and due to low rainfall. . The WWRP was drained and the liner was inspected and found to be in good conditions. The lack of damage in the liner discounted it as a potential source water for the leakage detected in a channel along the toe of the WWRP. . Inspection of the tongue shaped crack in the concrete overflow pad at the Cooling Tower has resumed now that the Mitsubishi CCGT and CT have resumed operation post their period of lay-up. The cracks have been painted so that extensions and changes to
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existing cracks, or development of new cracks, can be identified after the next operational period.
. Identification of DO and pH inline meters on the WWRP discharge to be offline on 4th August 2015, with replacement organised and reported to have been undertaken by 26 th August 2015. . Identification of the need for minor clean-up of waste materials storage areas on site on two occasions.
2.9 REVEGETATION WORKS & ASSESSMENT
Revegetation works and assessment were completed in the previous AER reporting period. The recommendations of the final report are continuing to be implemented as required (in particular the removal of redundant tree bags, ongoing monitoring of weed growth (including the Typha weed in the stormwater pond) and implementation of weed control measures. No further formal reporting is required in the AER.
2.10 EMERGENCY RESPONSE AND CONTINGENCY PLAN
A copy of the most recent version of the Emergency Response and Contingency Plan fo r the TVPS has been included in Appendix I for information, and in accordance with Condition RP1(1.8) of the EPN.
2.11 WASTE PRODUCED
There has been no significant change in the type of solid and liquid wastes produced on -site, nor any change to the Licensed Contractors employed to remove wastes from site for reuse, recycling or disposal. Apart from the sludge, wastewater and stormwater wastes discussed earlier, t he other separate waste streams generated on site include: . General waste; . Recycled paper; . Recycled cardboard; . Comingled recycling; . Liquid (sewage and grey water) waste; and . Hydrocarbon waste. A summary of the quantity of each waste produced during the reporting period (1 April 2015 to 31 March 2016), the transporter responsible for removing it from site , and the disposal or recycling destination for these materials is presented in Table 8. Two additional isolated waste disposal events occurred during the reporting period. These waste materials were taken to the Launceston Refuse disposal site for treatment and/or disposal in an approved manner;
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1. 550 m3 of a waste oil mixture (comprising hydrocarbon oil and water) was removed from the FT8 separator system by Hagan Oil during maintenance works in April 2015.
2. 2 m3 of hydrocarbon waste (skimmed oil and oily scum associated with maintenance of above and underground storage tanks) was removed by Veolia in March 2016. No polychlorinated biphenyls (PCBs) were identified to be present on site or requiring disposal, and no fluorescent tubes were identified as waste for removal.
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Table 8: Summary of Solid and Liquid Waste Materials Management (1 April 2015 to 31 March 2016)
RECYCLED LIQUID WASTE MONTH GENERAL WASTE Paper Cardboard Comingled (Sewage) Qty Removed Removed Qty Removed Removed Qty Removed Removed Qty Removed Removed Qty Removed Removed (m3) By To (L) By To (L) By To (L) By To (L) By To Apr-15 21 Veolia Laun 660 Veolia Laun 4,000 ToxFree TTB May-15 103 Veolia Laun 720 Veolia Laun Jun-15 111 Veolia Laun 660 Veolia Laun Jul-15 36 Veolia Laun 660 Veolia Laun 10,000 Veolia TTB Aug-15 36 Veolia Laun Sep-15 45 Veolia Laun 8,000 Veolia TTB Oct-15 9 Veolia Laun 720 Veolia Laun Nov-15 6 Veolia Laun 660 Veolia Laun 240 Veolia Laun Dec-15 27 Veolia Laun 240 Veolia Laun 8,000 Veolia TTB Jan-16 27 Veolia Laun Feb-16 18 Veolia Laun 660 Veolia Laun Mar-16 18 Veolia Laun 660 Veolia Laun 8,000 Veolia TTB TOTALS 457 m3 1440 Litres 3,960 Litres 480 Litres 38,000 Litres
Laun = Transported to Launceston for treatment (as needed) and disposal by Veolia in an approved manner TTB = Transported to Ti Tree Bend sewerage treatment plant
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3. AER COMMITMENTS & THEIR STATUS
3.1 STATUS OF THE COMMITMENTS MADE IN THE 2015/16 AER
The status of commitments made in the previous AER 2014/15 reporting period (that were additional to those required to meet the EPN requirements) has been detailed in Table 9 below.
Table 9: Status of commitments made in the 2015/16 AER
Commitment Description of actions required Status of actions at April 2016 Completed?
Noise
1. The recommendations issuing from the Actions committed to in the 2014/15 AER CT maintenance works were Completed comprehensive site-wide noise survey (PCE condition were put on hold while the CCGT and CT undertaken and noise monitoring N2), reported in VIPAC November 2010 Tamar Valley were on lay-up, so the CT noise emissions equipment has been installed on- Power Station, Environmental Noise Modeling, will be have been nil over most of the reporting site. implemented as far as practicable to avoid or period. No noise-related complaints have minimise nuisance noise emissions. Investigations Further investigation may be required if been received by the TVPS or EPA. were undertaken into both during the 2011-2012 noise complaints are received. period. Solution for Cooling Tower to be fitted during the new reporting period. Retrofitting to the FT8s may not be viable.
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Commitment Description of actions required Status of actions at April 2016 Completed?
2. The VIPAC 2014 Annual Noise survey (April 2014) Installation (and calibration) of a Continuous noise emission Completed identified that the most significant tones emanating permanent noise monitoring station on site monitoring equipment has been from the power station site continue to be the 473 Hz to provide ongoing noise emission installed. tone generated by the anti-condensate blowers monitoring data for the operation and
located on each of the Pratt and Whitney FT8 turbine assist with trouble shooting any noise enclosures and a 100 Hz tone from the FT8 plant issues or complaints. area (likely to be associated with power generating
and handling equipment, i.e. generators and transformers).
Potential wastewater retention pond seepage .
3. During the October 2013 Quarterly site visit at AETV, . AETV Power will investigate options to The standpipe has been repaired. Completed seepage water was observed at the lower end (foot) recover seepage water to minimise The WWRP has been fully drained of the south-western wall of the wastewater retention discharge of seepage water. and desludged. pond (WWRP). AETV will investigate and manage the . During the next outage the standpipe leak. The integrity of the WWRP liner repairs will be undertaken as outlined has been inspected. No damage or above. weakness was identified. The . At the next outage, the WWRP liner WWRP is not considered likely to will again be inspected for integrity, be the source of the surface water together with its input and outfall drain leak. areas. Cooling Tower overflow ramp . Drainage will be installed to alleviate cracking has not been repaired. cooling tower basin cracking. AETV will monitor surface water flow quantity.
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Commitment Description of actions required Status of actions at April 2016 Completed?
Wastewater quality
4. Total Suspended Solids concentrations exceeded the Removal of solids from the input water Desludging of the WWRP has been Completed EPN limit four times during the 2014/15 monitoring (particularly from untreated Curries River undertaken. period and once during the 2015/16 period due to the dam water). A cap has been placed on the quality of the input water received from Curries River Raw water use is currently low due to bottom of the t-piece that was fitted dam. AETV need to further pre-treat or remove solids CCGT Lay-up – Chimney Saddle treated last year. The cap will minimise prior to onsite use of water. water has been main source and does not potential for stirring up sludge present a TSS issue. accumulated on the bottom by forcing the incoming water to Removal of accumulated WWRP sludge overflow at the surface of the pond levels which may exacerbating the TSS water, rather than directing it to the concentrations in the discharge. bottom. The initial sampling event upon resumption of Curries River Dam water usage and recommissioning the CCGT recorded an increase in TSS. This was followed by a subsequent result that was within acceptable levels. Further investigation will be undertaken if ongoing monitoring shows further elevated levels of TSS.
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Commitment Description of actions required Status of actions at April 2016 Completed?
5. High TPH concentrations have been recorded AETV to analytically verify presence of THM testing was added to raw Ongoing intermittently in the wastewater and could be a result Trihalomethanes and polymer in water, wastewater and Donovans of inputs from treated Chimney Saddle water wastewater if TPH levels are elevated Bay suites. (presence of Trihalomethanes) or from a polymer above previously recorded (typical) levels. Results after recommissioning of AETV adds to the cooling tower water when it is on the CCGT showed detectable TPH Curries River water. and Trihalomethanes and a correlation with the use of Curries River Dam water, and application of polymer.
Wastewater discharge
6. Undertake ongoing monitoring of inline meters (pH, Ongoing monitoring using the inline meters Ongoing calibration and cleaning of Ongoing conductivity, temperature and DO) at the wastewater on DP1 (installed in the previous AER inline probes to ensure effective discharge point within the flume on Donovans Bay. period) and re-calibration on a regular operation was undertaken, as was basis. ongoing recording of monitoring data for inline parameters.
Stormwater retention pond
7. The continued monitoring of Typha weed growth in Monitoring Typha weed growth during Typha weed is under control, but Ongoing the stormwater retention pond area to ensure quarterly site inspections and weed proliferation will continue to effective operation of the system. implementation of weed control measures be monitored as part of routine site as required. inspections and weed management measures implemented as part of general site operations.
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Commitment Description of actions required Status of actions at April 2016 Completed?
Revegetation works & assessment
8. Implement the recommendations of the Rehabilitation Planting and weed control works Revegetation works on the AETV Completed Review report (SEMF, 2014). recommended in the Rehabilitation Review site have been extensively report have been progressively completed and vegetated areas are implemented, including provision of well established. additional plantings, removal of redundant Ongoing weed control works will tree bags and stakes, and the continue to be undertaken on-site implementation of weed control measures. as part of general site maintenance.
Environmental management system
9. Implement the existing EMS Implement actions in priority order, and Noted and active. Ongoing review and update the live document regularly.
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3.2 SUMMARY OF COMMITMENTS FOR THE UPCOMING 2016/17 AER REPORTING PERIOD
The ongoing and new commitments for the upcoming 2016/17 AER reporting period are summarised below in Table 10 below.
Table 10: Summary of new and ongoing commitments for the upcoming 2016/17 AER reporting period
Aspect Background Actions for implementation by April 2017
Noise Equipment Ongoing operation of (and recalibration as needed) of a Ongoing operation of (and recalibration as needed) of a permanent Calibration permanent noise monitoring station next to the site to provide noise monitoring station ongoing noise emission monitoring data for the operation and assist with trouble shooting any noise issues or complaints. Further investigation may be required if noise complaints are received.
Annual Site- An annual site-wide environmental noise survey was AETV will organise for an annual environmental noise survey to be Wide Noise programmed to be undertaken in February/March 2016, but conducted during the period of October 2016 to March 2017. The Survey due to the highly variable nature of the operation at the time it survey report findings will be discussed in the 2016/17 AER report was deferred (This change was approved by the EPA). and a copy of the report included in its Appendix.
Monitoring of During the October 2013 Quarterly site visit at AETV, AETV will continue to visually monitor the area of potential seepage Seepage near seepage water was observed at the lower end (foot) of the water and will the intention of minimising any offsite discharge. the WWRP south-western wall of the wastewater retention pond (WWRP). Investigation of other possible sources will be undertaken as AETV have checked the integrity of the WWRP and necessary. discounted it as a possible source. AETV have continued to monitor the seepage during site inspections.
Monitoring of During the 2014/15 AER reporting period a site inspection AETV will continue to visually monitor the cooling tower overflow crack in Cooling identified a crack in the cooling tower overflow concrete pad. slab crack and will implement remedial measures as needed during Tower Pad site walkovers.
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Aspect Background Actions for implementation by April 2017
Wastewater High TPH concentrations have been recorded intermittently in AETV will continue to monitor wastewater for the presence of TPH quality the wastewater and could be a result of inputs from treated and THMs, and investigate further the potential correlation with the Chimney Saddle water (presence of THMs) or from a polymer addition of the proprietary polymer flocculent during the water AETV add to the cooling tower water when it is on Curries treatment process. River water.
Wastewater Accumulated sludge removed from the WWRP has been AETV will continue to manage (dewater and reuse) sludge removed Retention Pond placed on the neighbouring Hydro Bell Bay site for from the WWRP in accordance with the EPA approved methodology. dewatering.
Wastewater AETV has installed and been operating inline meters (pH, AETV will continue to undertake ongoing monitoring using the inline discharge conductivity, temperature, DO and conductivity) at the meters at DP1 (installed in the previous AER period) and re- wastewater discharge point within the flume on Donovans calibration on a regular basis. Bay.
Environmental Implement the existing EMS Implement actions in priority order, and review and update the live management document regularly. system
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4. ENVIRONMENTAL MONITORING & REPORTING COMPLIANCE SUMMARY
During the AER reporting period, the TVPS operation was highly adaptable, implemented significant variation in the power gene ration equipment utilised and the timing of their use from month to month in response to maintenance planning and power generation shortfalls. The site continued to be operated using standard operating procedures, monitoring and reporting practices such that AETV Power has satisfied all Permit requirements for the TVPS, and there have been no public complaints received for the operation during the reporting period. Based on the findings of the monitoring and reporting information detailed in Section 2 , AETV has complied with the requirements of all of the current and applicable environmental monitoring EPN conditions. A summary of which is provided in Table 11 below as a quick reference.
Table 11: Environmental Monitoring & Reporting Compliance Summary
Section Environmental Monitoring Compliance Summary and Comments Status C / PC / NC
2.2 & 2.3 Public Complaints & Incidents C No reported complaints, or significant incidents.
2.4 Procedural Changes C No significant procedural changes occurred. The Mitsubishi CCGT was in lay-up from 4th June 2014 to 19th January 2016.
2.5 Water Usage N/A No prescribed limit. Raw water usage was recorded and is reported in the AER. Raw water usage was in line with quantities reported in the previous AER period.
2.6 Operating Hours & Fuel Usage of C The total fuel usage consumption of 10.5 T/hr (with synchronous condensers) was well within Turbines the EPN limit of 77 T/hr.
LEGEND: Compliance Status: C = Compliant PC = Partially Compliant NC = Non-Compliant NA = Not Applicable
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Section Environmental Monitoring Compliance Summary and Comments Status C / PC / NC
2.7 Monitoring Data
2.7.1 . Maximum Quantities – Regulatory Maximum quantities of the following materials for the rep orting period were within prescribed Compliance Regulatory Limits (RL) as per EPN Conditions Q1-4: . C . Maximum fuel consumption was on average 10.47 T/hr (i.e. 2.7.2 . Stack Testing C All quarterly stack emission results were within the EPN limits for oxides of nitrogen, NO x (corrected to 15% O2). Retesting confirmed that an elevated NO x level of 62 mg/m3 recorded on 26 May 2015 (just above the EPN limit of 60 mg/m 3) was due to testing of emissions from the Rolls Royce Unit 104 under unstable conditions and was not an exceedance. Refer to the test result summary and stack testing reports in Appendices D1 to D6. 2.7.3 . Wastewater Flow & Quality (Inline) C Wastewater flow and inline water quality was monitored in accordance with the EPN conditions, with analytical results typically within prescribed limits. Numerous periods of potentially spurious results were recorded as a result of low flow when there may have been insufficient discharge to keep probes moist and operating correctly. . There has been a significant decrease in wastewater discharge with the Mitsubishi unit and Cooling Tower being in lay-up until January 2016. Monitoring requirements were temporarily varied during this period (as approved by the EPA). Page 47 of 50 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Section Environmental Monitoring Compliance Summary and Comments Status C / PC / NC 2.7.4 . Wastewater (& Near Shore) C Wastewater discharge (WWRP) water quality and near shore inline water temperature monitoring has been undertaken in accordance with the EPN conditions, with analysis results typically within prescribed limits. There were extended periods of low and no flow when sampling was not possible. Comparison of discharge wastewater and near shore ambient water temperature was showed compliance with the ±7 degrees Celsius EPN limit. Inline monitoring results for pH and DO were outside of range or above EPN limits on several occasions, many of these results were attributed to tidal ingress into the discharge pipe providing spurious results. Elevated concentrations of C6-C9 fractions TPH, THMs and suspended solids were recorded after a prolonged dry period of no discharge. No EPN limit exists for THMs in wastewater discharge or stormwater, but AETV is continuing to investigate a possible correlation between the presence of THMs and C6-C9 fractions TPH. In the absence of an EPN limit for TPH, TPH has been compared against the EPN limit for stormwater (500µg/L). This comparison finds TPH for (which ranges from 70 to 110 µg/L) to be present at levels that are not cause for concern. AETV are continuing to monitor them and investigate their likely source monitor as a precaution. 2.7.5 . Eutrophication (Toxicity) Testing N/A Eutrophication testing is no longer required. 2.7.6 . Biological N/A The biological monitoring program is now triennial (next due in September 2017), so no survey was required during this reporting period. 2.7.7 . Stormwater C Stormwater discharge was monitored in accordance with the EPN conditions, with analysis results typically within prescribed limits. There were extended periods of low and no flow when sampling was not possible. Page 48 of 50 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Section Environmental Monitoring Compliance Summary and Comments Status C / PC / NC 2.7.8 . Donovans Bay C Quarterly monitoring of water quality in Donovans Bay was undertaken. The findings of Donovans Bay water quality samples and field monitoring when compared against control points, indicated that the AETV WWRP Discharge had no obvious adverse impact on the receiving environment of Donovans Bay. 2.7.9 . Tamar River N/A Ongoing monitoring of the Tamar River at sampling locations T1 & T2 is no longer required, as it is only required if the alternate wastewater discharge point is used . AETV no longer use this discharge point. 2.7.10 . Hazardous Materials C It is understood that AETV have been managing hazardous materials in accordance with EPN conditions H1 & H2. 2.7.11 . Noise PC Continuous noise monitoring equipment was operated on-site, with recalibration undertaken as needed. Due to operational variability, the annual environmental noise monitoring survey that was scheduled for February was postponed. The survey will therefore be reported in the next AER (i.e. 2015/16). 2.8 Site Inspections C TVPS personnel undertake routine daily inspections of the power station plant and periodic site walkover field inspections. Inspections found no significant issues. 2.9 Revegetation Works & Assessment N/A No further reporting required. 2.10 Emergency Response & Contingency C The updated plan is attached to the AER (Appendix I). Plan 2.11 Waste Produced C Information relating to the wastes produced on site have been recorded and are provided in the AER. Page 49 of 50 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) 5. REFERENCES AETV Power, 2016: Tamar Valley Power Station, Emergency Response Plan (EH&S Procedure), Rev 1.6. Dated 31 May 2016. EPA, 2012a: Environment Protection Notice 7898/1 issued to Aurora Energy (Tamar Valley) Pty Ltd, for the Operation of a Gas Fired Power Station at the Tamar Valley Power Station, Bell Bay, Tasmania. Environment Protection Authority Tasmania. Dated 20 Nov 2012. EPA, 2012b: Information Bulletin No. 105. Classification and management of contaminated soil for disposal. Environmental Management and Pollution Control (Waste Management) Regulat ions 2010. Environment Protection Authority Tasmania. Dated 2Nov 2012. EPA, 2015a: Correspondence titled: “Request to vary biological monitoring requirements. EPA Director to TVPS Manager. Environment Protection Authority Tasmania. Dated 19 May 2015. EPA, 2015b: Correspondence titled: “Environmental Approval No. 9384/1. Reuse of sludge for landscaping – Bell Bay Power Station. EPA Director to Andrew Pattle Project Manager. Environment Protection Authority Tasmania. Dated 24 December 2015. Ektimo, 2015a: Quarter Two Compliance – 2015. AETV Pty Ltd Georgetown. Report Number: R001070. Ektimo. Dated 11 June 2015. Ektimo, 2015b: Emission Testing Report – U104 Re-test. AETV Pty Ltd Georgetown. Report Number: R001301. Ektimo. Dated 13 July 2015. Ektimo, 2015c: Quarter Three Compliance – 2015. AETV Pty Ltd Georgetown. Report Number: R001470. Ektimo. Dated 3 September 2015. Ektimo, 2015d: Emission Testing Report Quarter 4 – 2015. AETV Pty Ltd Georgetown. Report Number: R002001. Ektimo. Dated 21 December 2015. Ektimo, 2016: Emission Testing Report Quarter 1 – 2016. AETV Pty Ltd Georgetown. Report Number: R002425. Ektimo. Dated 22 April 2016. SEMF Pty Ltd, 2010: Annual Environmental Review – Tamar Valley Power Station, Project no. 2946.002. Dated December 2010. SEMF Pty Ltd, 2011: Annual Environmental Review – Tamar Valley Power Station, Project no. 2946.002. Dated August 2011. SEMF Pty Ltd, 2012: Annual Environmental Review: 2011-2012 – Tamar Valley Power Station, Project no. 2946.002. Dated September 2012. SEMF Pty Ltd, 2013: Annual Environmental Review: 2012-2013 – Tamar Valley Power Station, Project no. 2946.002. Dated August 2013. SEMF Pty Ltd, 2014: Annual Environmental Review: 2013-2014 – Tamar Valley Power Station, Project no. 2946.002. Dated 13 November 2014. SEMF Pty Ltd, 2015: Annual Environmental Review: 2014-2015 – Tamar Valley Power Station, Project no. 2946.002. Dated 14 October 2015. Pers.comm. Mr R. Trimble – Discussion of elevated wastewater discharge results in April 2016. AER Report: Page 50 of 50 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) LIST OF APPENDICES APPENDIX A Tamar Valley Power Station: Proposed sludge disposal methodology APPENDIX B EPA letter titled ‘Environmental Approval No. 9384/1. Reuse of sludge for landscaping – Bell Bay Power Station’. APPENDIX C Wastewater retention pond sludge analysis results APPENDIX D1 Stack Testing Results Summary APPENDIX D2 Q2 2015 Stack testing report (June 2015) APPENDIX D3 Emission Testing report – U104 Re-test (July 2015) APPENDIX D4 Q3 2015 Stack testing report (September 2015) APPENDIX D5 Q4 2015 Stack testing report (December 2015) APPENDIX D6 Q1 2016 Stack testing report (April 2016) APPENDIX E1 Wastewaster discharge outfall pH results APPENDIX E2 Monthly wastewaster and inline monitoring results APPENDIX F1 Quarterly near shore ambient monitoring results APPENDIX F2 Near shore inline temperature monitoring results APPENDIX G EPA letter titled ‘Request to vary biological monitoring requirements’. APPENDIX H Quarterly Donovans Bay field and laboratory monitoring results APPENDIX I Emergency Response Plan (Rev 1.6 - AETV, 31 May 2016) Appendices Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) APPENDIX A – Tamar Valley Power Station: Proposed sludge disposal methodology (Prepared by AETV, Dated 8 December 2015) Appendix A Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Tamar Valley Power Station: Proposed Sludge Disposal Methodology Hydro Tasmania is preparing the Tamar Valley Power Station to potentially start operating in early January 2016, due to persistent low inflows into the hydro catchments. In order for the power station to start operation, approximately 100m 3 of sludge in the settlement pond needs to be removed. The sludge is derived from the water treatment plant purifying Curries River water for use as boiler feed water. The sludge is a naturally derived material present in the water course but the treatment process concentrates organic material and metals. The analysis results of the sludge are appended. The proposed disposal method for the sludge is to collect it in a vacuum truck from the settlement pond and transport it to an existing tank foundation pad at the adjacent Bell Bay Power Station site. Once the sludge has dried out, it can be mixed with sand or sawdust based on advice from the EPA. The sludge will be stored in situ for approximately two years then used to re-contour and landscape the Bell Bay Power Station site after the buildings have been demolished. Figure 1 below shows the locations of the source of the sludge, the transport route and the temporary storage area. Figure 1: Location Map The proposed vacuum truck that will be used to transport the sludge is shown in Figure 2 below. Note that this is a typical truck and Hydro Tasmania has not yet selected the contractor to carry out the sludge transport. Figure 2: Typical Vacuum Truck The temporary storage area consists of a circular tank foundation pad 37m in diameter, capped with a 40mm thick asphaltic concrete layer which has been laid to a gentle fall from the centre to the perimeter. The asphaltic concrete is in excellent condition as it has been covered by an oil tank for most of its life, protecting it against weathering. The oil tank compound is fully bunded, providing a second line of defence. A 32m diameter filter bund will be constructed of hay bales on the tank pad to contain the sludge. The hay bales will minimise silt leaving the tank pad. An access ramp to allow the vacuum truck to discharge into the storage area will be constructed using fill material reclaimed from the adjacent tank pad. Prepared by: Andrew Pattle Senior Project Manager – Bell Bay Power Station Demolition Date: 8 December 2015 APPENDIX B – Letter titled ‘Environmental Approval No. 9384/1. Reuse of sludge for landscaping – Bell Bay Power Station (Prepared by EPA Tasmania, Dated 24 December 2015) Appendix B Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) APPENDIX C – Wastewater retention pond sludge analysis results (Analytical Services Tasmania, 8 December 2015) Appendix C Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) ANALYTICAL SERVICES TASMANIA 18 St Johns Avenue New Town Laboratory Telephone: (03) 6165 3300 Fax: (03) 6230 7001 Email: [email protected] Date: 08-Dec-15 Pages: 4 (including this one) To: Kathy Shanley From: AST Reception AETV Pty Ltd Address Tamar Valley Power Station, PO Box 400, East Tamar Hwy, TAS 7253 Fax No: Fax No (03) 6230 7001 Phone: 03 6380 2224 Phone: (03) 6165 3300 Mobile: Order No 00002850 Please find enclosed report number 74455 : issue number 1. The invoice for this report will follow. This document and any following pages is intended solely for the named addressee and may contain information that is confidential and privileged. If you are not the intended recipient, you are hereby notified that any dissemination, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by telephone and destroy the original message. Thank you. ANALYTICAL SERVICES TASMANIA New Town Laboratory 18 St Johns Avenue New Town, Tasmania, Australia, 7008 Telephone: (03) 6165 3300 Fax: (03) 6230 7001 Email: [email protected] Laboratory Report Report No: 74455 Issue No 1 Report Date 08-Dec-2015 13:27 Status: Full Report Site Description: Received: 02-Dec-15 Submitted to: New Town Laboratory Submitted By: Kathy Shanley Client Order No: 00002850 Report To: Kathy Shanley Client: AETV Pty Ltd Address: Tamar Valley Power Station, PO Box 400, East Tamar Hwy, TAS 72 Deionised water was used for all TCLP extractions as per client instructions. Because deionised water was used the initial pH of extraction fluid was not measured. Accredited for compliance with ISO/IEC 17025. This document shall not be reproduced, except in full. Samples analysed as received. Page 1 of 3 ANALYTICAL SERVICES TASMANIA Report No: 74455 Issue No: 1 Report Date: 08-Dec-2015 13:27 Sample Id.: 301923 301924 301925 301926 Method Analyte Units / Sampled On : 1 2 3 4 30/11/15 30/11/15 30/11/15 30/11/15 2335+1301-Soil As mg/L <0.05 <0.05 <0.05 <0.05 Mn mg/L 0.29 0.41 0.38 0.32 Mo mg/L 0.03 0.02 0.04 0.03 Zn mg/L <1.0 <1.0 <1.0 <1.0 2335-Soil Extract Fluid Initial pH *US* *US* *US* *US* Leachate Final pH 7.0 6.9 6.9 6.6 *US* = Sample Unsuitable for Analysis Page 2 of 3 ANALYTICAL SERVICES TASMANIA Report No: 74455 Issue No: 1 Report Date: 08-Dec-2015 13:27 Test Method(s) : Test Date Inorganic Testing 2335+1301-Soil: TCLP Extractable Metals by ICP-AES 08-Dec-2015 2335-Soil: Toxicity Characteristic Leaching Procedure - In House Method 03-Dec-2015 Not Authorised By: Authorised John O'Reilly Section Head - Inorganic (Metals) This document shall not be reproduced, except in full. Samples analysed as received. Page 3 of 3 APPENDIX D1 – Stack Testing Results Summary Appendix D1 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) AETV Stack Testing Results (2015/2016 AER) Stack Testing Consultant Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Ektimo Unit 101A 102A 103A 104 101A 102A 103A 104 101A 101B 102A 103A 101A 101B 103A 104 201 Date 26-May-15 25-May-15 25-May-15 26-May-15 25-Aug-15 25-Aug-15 26-Aug-15 26-Aug-15 2-Dec-15 2-Dec-15 2-Dec-15 3-Dec-15 31-Mar-16 31-Mar-16 30-Mar-16 30-Mar-16 31-Mar-16 Start Time 8:57 15:28 13:43 10:43 12:38 14:39 9:13 12:00 14:54 16:04 17:28 9:15 9:30 10:47 12:32 14:56 8:01 End Time 9:57 16:28 14:43 11:43 13:37 15:38 10:12 15:59 15:53 17:05 18:27 10:14 10:29 11:46 13:31 15:55 9:00 Parameter Unit Value Value Value Value Value Value Value Value Value Value Value Value Value Value Value Value Value Gas Temperature K 422 425 438 424 427 447 430 410 445 434 434 453 445 430 450 422 103 Gas Velocity m s -1 49 51 49 32 46 45 45 39 48 39 47 46 46 43 43 37 31 Moisture content % 7.9 7.9 7.0 8.0 6.9 7.6 6.2 9.0 6.3 6.1 6.2 6.4 6.3 6.3 7.0 10.0 6.7 O2 % 16.1 16 16.1 16 16.9 16.5 15.6 14.9 15.6 15.7 15.6 15.4 15.6 15.8 15.5 14.8 15.0 CO 2 % 3.1 3.3 3.3 3.5 2.1 2.6 3.1 3.5 3.2 3.1 3.2 3.2 3.1 3 3.1 3.6 3.3 Dry standard flow rate dscm/min 7,400 7,700 7,300 7,300 6,900 6,600 6,900 9,000 7,000 5,900 7,000 6,700 6,800 6,400 6,300 8,200 30,000 Corrected NOx (as NO 2 @ 15% O 2) mg/m3 67 69 67 62 69 66 68 57 69* 70* 70** 67 54 61 55 33 48 NO X (as NO 2) mg/m3 55 57 55 51 47 49 61 57 62 62 63 63 49 53 50 34 48 NO X (as NO 2) Emission Rate g/min 410 440 400 370 330 330 420 520 440 360 440 420 330 340 310 280 1400 CO (Corrected) mg/dscm 26 39 50 35 22 41 51 30 26 17 32 55 59 43 47 58 18 CO mg/m3 22 32 41 29 15 30 45 30 23 15 29 51 54 37 42 60 19 CO Emission Rate g/min 160 240 300 210 100 200 310 270 160 89 200 350 360 240 270 490 550 CO Emission Rate g/sec 2.7 4.0 5.0 3.5 1.7 3.3 5.2 4.5 2.7 1.5 3.3 5.8 6.0 4.0 4.5 8.2 9.2 NO X (as NO 2) Emission Rate g/sec 6.8 7.3 6.7 6.2 5.5 5.5 7.0 8.7 7.3 6.0 7.3 7.0 5.5 5.7 5.2 4.7 23.3 Machine Sampling Unit (s) Pratt and Whitney 101A Pratt and Whitney 101B Pratt and Whitney 102A Pratt and Whitney 103A Rolls Royce 104 Mitsubishi 201 Notes: STP = 0°C, 101.3kPa 3 3 * The value for the NO x result for Unit 101B was rounded in both the December 2015 report table for the unit and the table above. The actual measured value was 69.7 mg/m (just under the EPN limit of 70 mg/m ). 3 3 ** The value for the NO x result for Unit 102A was rounded in both the December 2015 report table for the unit and the table above. The actual measured value was 69.8 mg/m (just under the EPN limit of 70 mg/m ). Printed: 27/07/2016 APPENDIX D2 – Q2 2015 Stack Testing Report (June 2015) Report No. R001070. Quarter Two Compliance - 2015. Emission Testing Report. Prepared for AETV. Prepared by Ektimo. (Ektimo, 11 June 2015) Appendix D2 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Report Number R001070 Quarter Two Compliance - 2015 AETV Pty Ltd, GEORGETOWN This document is confidential and is prepared for the exclusive use of AETV Pty Ltd and those granted permission by AETV Pty Ltd. Ektimo 11 June 2015 Document Information Client Name: AETV Pty Ltd Report Number: R001070 Date of Issue: 11 June 2015 Attention: Chris Ashley Address: East Tamar Highway GEORGETOWN TAS 7253 Testing Laboratory: Ektimo (ETC) ABN 74 474 273 172 Report Status Format Document Number Report Date Prepared By Reviewed By (1) Reviewed By (2) Preliminary Report - - - - - Draft Report - - - - - Final Report R001070 11 June 2015 NB GT Amend Report - - - - - Template Version: 150513 Amendment Record Document Number Initiator Report Date Section Reason Nil - - - - Report Authorisation Glenn Trenear NATA Accredited Laboratory Client Manager No. 14601 Accredited for compliance with ISO/IEC 17025. NATA is a signatory to the ILAC mutual recognition arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 2 of 11 Ektimo 11 June 2015 Table of Contents 1 Licence Comparison ...... 4 2 Executive Summary ...... 5 3 Results ...... 6 3.1 U101-A ...... 6 3.2 U102-A ...... 7 3.3 U103-A ...... 8 3.4 U104 ...... 9 4 Plant Operating Conditions ...... 10 5 Test Methods...... 10 6 Quality Assurance/ Quality Control Information ...... 10 7 Definitions ...... 11 Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 3 of 11 Ektimo 11 June 2015 1 LICENCE COMPARISON Parameter Source Units Oxides of nitrogen (as NO2) Oxides of nitrogen (as NO2) Carbon Monoxide (corrected to 15% O2) Licence Limit NA 70 NA U101-A mg/m3 Detected Values 55 67 22 Licence Limit NA 70 NA U102-A mg/m3 Detected Values 57 69 32 Licence Limit NA 70 NA U103-A mg/m3 Detected Values 55 67 41 Licence Limit NA 70 NA U104 mg/m3 Detected Values 51 62 29 Note: All analytes highlighted in green are below the Licence Limit set by the Tasmanian EPA as per licence EPN#7989. Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 4 of 11 Ektimo 11 June 2015 2 EXECUTIVE SUMMARY Ektimo was engaged by AETV Pty Ltd to perform emission monitoring. Monitoring was performed as follows; Location Test Date Test Parameters* U101-A 26 May 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U102-A 25 May 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U103-A 25 May 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U104 26 May 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen * Flow rate, velocity, temperature and moisture were determined unless otherwise stated The methodologies chosen by Ektimo are those recommended by the Victorian Environment Protection Authority (as specified in A Guide to Sampling and Analysis of Air Emissions and Air Quality, December 2002). Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 5 of 11 Ektimo 11 June 2015 3 RESULTS 3.1 U101-A Date 26/05/2015 Client AETV Pty Ltd Report R001070 Stack ID U101-A Licence No. EPN#7989 Location Georgetown State TAS Ektimo Staff MH/SW Process Conditions Please refer to client records. Reason for testing: Air emission testing for Tasmanian EPA Licence purposes space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Exit plane dimensions as above Exit plane area Sampling port size, number & depth 4" BSP (x9) Access & height of ports Elevated work platform 10 m Duct orientation & shape Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Traverse method & compliance AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Unless otherwise indicated, the methods cited in this report have been performed without deviation All results reported on a dry basis at STP space space space space space space space space space space space Stack Parameters Moisture content, %v/v 7.9 Gas molecular weight, g/g mole 28.4 (wet) 29.3 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.31 (dry) % Oxygen correction & Factor 15 % 1.22 space space space space space space space space space space space space space space space Test 1 space space space Gas Flow Parameters Isokinetic Temperature, °C 422 Velocity at sampling plane, m/s 49 Volumetric flow rate, discharge, m³/min 20000 Volumetric flow rate (wet STP), m³/min 8100 Volumetric flow rate (dry STP), m³/min 7400 Mass flow rate (wet basis), kg/hour 610000 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 857-957 857-957 857-957 Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 55 67 410 45 55 340 58 71 430 Carbon monoxide 22 26 160 16 20 120 26 32 190 Concentration Concentration Concentration % % % Carbon dioxide 3.1 2.6 3.2 Oxygen 16.1 15.5 16.2 Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 6 of 11 Ektimo 11 June 2015 3.2 U102-A Date 25/05/2015 Client AETV Pty Ltd Report R001070 Stack ID U102-A Licence No. EPN#7989 Location Georgetown State TAS Ektimo Staff MH/SW Process Conditions Please refer to client records. Reason for testing: Air emission testing for Tasmanian EPA Licence purposes space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Exit plane dimensions as above Exit plane area Sampling port size, number & depth 4" BSP (x9) Access & height of ports Elevated work platform 10 m Duct orientation & shape Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Traverse method & compliance AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Unless otherwise indicated, the methods cited in this report have been performed without deviation All results reported on a dry basis at STP space space space space space space space space space space space Stack Parameters Moisture content, %v/v 7.9 Gas molecular weight, g/g mole 28.4 (wet) 29.3 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.31 (dry) % Oxygen correction & Factor 15 % 1.21 space space space space space space space space space space space space space space space Test 1 space space space Gas Flow Parameters Isokinetic Temperature, °C 425 Velocity at sampling plane, m/s 51 Volumetric flow rate, discharge, m³/min 21000 Volumetric flow rate (wet STP), m³/min 8300 Volumetric flow rate (dry STP), m³/min 7700 Mass flow rate (wet basis), kg/hour 630000 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1528-1628 1528-1628 1528-1628 Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 57 69 440 53 65 410 59 72 450 Carbon monoxide 32 39 240 24 29 180 34 41 260 Concentration Concentration Concentration % % % Carbon dioxide 3.3 3.2 3.3 Oxygen 16 15.5 16.2 Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 7 of 11 Ektimo 11 June 2015 3.3 U103-A Date 25/05/2015 Client AETV Pty Ltd Report R001070 Stack ID U103-A Licence No. EPN#7989 Location Georgetown State TAS Ektimo Staff MH/SW Process Conditions Please refer to client records. Reason for testing: Air emission testing for Tasmanian EPA Licence purposes space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Exit plane dimensions as above Exit plane area Sampling port size, number & depth 4" BSP (x9) Access & height of ports Elevated work platform 10 m Duct orientation & shape Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Traverse method & compliance AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Unless otherwise indicated, the methods cited in this report have been performed without deviation All results reported on a dry basis at STP space space space space space space space space space space space Stack Parameters Moisture content, %v/v 7 Gas molecular weight, g/g mole 28.5 (wet) 29.3 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.31 (dry) % Oxygen correction & Factor 15 % 1.22 space space space space space space space space space space space space space space space Test 1 space space space Gas Flow Parameters Isokinetic Temperature, °C 438 Velocity at sampling plane, m/s 49 Volumetric flow rate, discharge, m³/min 20000 Volumetric flow rate (wet STP), m³/min 7800 Volumetric flow rate (dry STP), m³/min 7300 Mass flow rate (wet basis), kg/hour 600000 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1343-1443 1343-1443 1343-1443 Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 55 67 400 53 64 380 58 71 430 Carbon monoxide 41 50 300 39 47 280 42 52 310 Concentration Concentration Concentration % % % Carbon dioxide 3.3 3.2 3.4 Oxygen 16.1 16 16.2 Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 8 of 11 Ektimo 11 June 2015 3.4 U104 Date 26/05/2015 Client AETV Pty Ltd Report R001070 Stack ID U104 Licence No. EPN#7989 Location Georgetown State TAS Ektimo Staff MH/SW Process Conditions Please refer to client records. Reason for testing: Air emission testing for Tasmanian EPA Licence purposes space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 3640 Sampling plane area 10.4 m² Exit plane dimensions as above Exit plane area Sampling port size, number & depth 4" BSP (x4) Access & height of ports Stairs & fixed ladder 10 m Duct orientation & shape Circular Downstream disturbance Exit 1 D Upstream disturbance Change in diameter 5 D No. traverses & points sampled 2 28 Traverse method & compliance AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Unless otherwise indicated, the methods cited in this report have been performed without deviation All results reported on a dry basis at STP space space space space space space space space space space space Stack Parameters Moisture content, %v/v 8 Gas molecular weight, g/g mole 28.4 (wet) 29.3 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.31 (dry) % Oxygen correction & Factor 15 % 1.22 space space space space space space space space space space space space space space space Test 1 space space space Gas Flow Parameters Isokinetic Temperature, °C 424 Velocity at sampling plane, m/s 32 Volumetric flow rate, discharge, m³/min 20000 Volumetric flow rate (wet STP), m³/min 7900 Volumetric flow rate (dry STP), m³/min 7300 Mass flow rate (wet basis), kg/hour 600000 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1043-1143 1043-1143 1043-1143 Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate Concentration O2 corrected Mass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 51 62 370 45 55 330 53 64 380 Carbon monoxide 29 35 210 20 24 150 31 38 230 Concentration Concentration Concentration % % % Carbon dioxide 3.5 3.3 3.6 Oxygen 16 15.5 16.2 Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 9 of 11 Ektimo 11 June 2015 4 PLANT OPERATING CONDITIONS Unless otherwise stated, the plant operating conditions were normal at the time of testing. See AETV Pty Ltd’s records for complete process conditions. 5 TEST METHODS All sampling and analysis was performed by Ektimo unless otherwise specified. Specific details of the methods are available upon request Parameter Test Method Method Uncertainty* NATA Accredited Detection Limit Sampling Analysis Molecular weight USEPA 3A - not specified Velocity ISO10780 0.4ms-1 NA NA Flow rate ISO10780 Location not specified NA NA Moisture USEPA Alt-008 specific0.4% 19% Sample plane criteria AS 4323.1 - - NA Oxygen USEPA 3A 0.1% 13% Carbon dioxide USEPA 3A 0.1% 13% Nitrogen oxides USEPA 7E 4mg/m³ 12% Carbon monoxide USEPA 10 2.5mg/m³ 12% Dry Gas Density USEPA 3A - not specified Temperature ISO10780 1°C not specified NA NA * Uncertainty values cited in this table are calculated at the 95% confidence level (coverage factor = 2) 6 QUALITY ASSURANCE/ QUALITY CONTROL INFORMATION Ektimo is accredited by the National Association of Testing Authorities (NATA) for the sampling and analysis of air pollutants from industrial sources. Unless otherwise stated test methods used are accredited with the National Association of Testing Authorities. For full details, search for Ektimo at NATA’s website www.nata.asn.au. Ektimo is accredited by NATA (National Association of Testing Authorities) to ISO/IEC 17025. – General Requirements for the Competence of Testing and Calibration Laboratories. ISO/IEC 17025 requires that a laboratory have a quality system similar to ISO 9002. More importantly it also requires that a laboratory have adequate equipment to perform the testing, as well as laboratory personnel with the competence to perform the testing. This quality assurance system is administered and maintained by the Compliance Manager. NATA is a member of APLAC (Asia Pacific Laboratory Accreditation Co-operation) and of ILAC (International Laboratory Accreditation Co-operation). Through the mutual recognition arrangements with both of these organisations, NATA accreditation is recognised world –wide. A formal Quality Control program is in place at Ektimo to monitor analyses performed in the laboratory and sampling conducted in the field. The program is designed to check where appropriate; the sampling reproducibility, analytical method, accuracy, precision and the performance of the analyst. The Laboratory Manager is responsible for the administration and maintenance of this program. Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 10 of 11 Ektimo 11 June 2015 7 DEFINITIONS The following symbols and abbreviations may be used in this test report: STP Standard temperature and pressure. Gas volumes and concentrations are expressed on a dry basis at 0°C, at discharge oxygen concentration and an absolute pressure of 101.325 kPa, unless otherwise specified. Disturbance A flow obstruction or instability in the direction of the flow which may impede accurate flow determination. This includes centrifugal fans, axial fans, partially closed or closed dampers, louvres, bends, connections, junctions, direction changes or changes in pipe diameter. VOC Any chemical compound based on carbon with a vapour pressure of at least 0.010 kPa at 25°C or having a corresponding volatility under the particular conditions of use. These compounds may contain oxygen, nitrogen and other elements, but specifically excluded are carbon monoxide, carbon dioxide, carbonic acid, metallic carbides and carbonate salts. TOC The sum of all compounds of carbon which contain at least one carbon to carbon bond, plus methane and its derivatives. OU The number of odour units per unit of volume. The numerical value of the odour concentration is equal to the number of dilutions to arrive at the odour threshold (50% panel response). PM2.5 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 2.5 microns (µm). PM10 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 10 microns (µm). BSP British standard pipe NT Not tested or results not required NA Not applicable D50 ‘Cut size’ of a cyclone defined as the particle diameter at which the cyclone achieves a 50% collection efficiency ie. half of the particles are retained by the cyclone and half are not and pass through it to the next stage. The D50 method simplifies the capture efficiency distribution by assuming that a given cyclone stage captures all of the particles with a diameter equal to or greater than the D50 of that cyclone and less than the D50 of the preceding cyclone. D Duct diameter or equivalent duct diameter for rectangular ducts < Less than > Greater than ≥ Greater than or equal to ~ Approximately CEM Continuous Emission Monitoring CEMS Continuous Emission Monitoring System DER WA Department of Environment & Regulation DECC Department of Environment & Climate Change (NSW) EPA Environment Protection Authority FTIR Fourier Transform Infra Red NATA National Association of Testing Authorities RATA Relative Accuracy Test Audit AS Australian Standard USEPA United States Environmental Protection Agency Vic EPA Victorian Environment Protection Authority ISC Intersociety committee, Methods of Air Sampling and Analysis ISO International Organisation for Standardisation APHA American public health association, Standard Methods for the Examination of Water and Waste Water CARB Californian Air Resources Board TM Test Method OM Other approved method CTM Conditional test method VDI Verein Deutscher Ingenieure (Association of German Engineers) NIOSH National Institute of Occupational Safety and Health XRD X-ray Diffractometry Report R001070 prepared for AETV Pty Ltd, GEORGETOWN Page 11 of 11 APPENDIX D3 –Emission Testing Report – U104 Re-test (July 2015) Report No. R001301. Emission Testing report – U104 Re-test. Prepared for AETV. Prepared by Ektimo. (Ektimo, 13 July 2015) Appendix D3 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Report Number R001301 Emission Testing Report U104 Re-test AETV Pty Ltd, GEORGETOWN This document is confidential and is prepared for the exclusive use of AETV Pty Ltd and those granted permission by AETV Pty Ltd. Ektimo 13 July 2015 Document Information Client Name: AETV Pty Ltd Report Number: R001301 Date of Issue: 13 July 2015 Attention: Chris Ashley Address: East Tamar Highway GEORGETOWN TAS 7253 Testing Laboratory: Ektimo (ETC) ABN 74 474 273 172 Report Status Format Document Report Date Prepared By Reviewed By (1) Reviewed By (2) Number Preliminary Report - - - - - Draft Report - - - - - Final Report R001301 13 July 2015 JW BS GT Amend Report - - - - - Template Version: 150615 Amendment Record Document Number Initiator Report Date Section Reason Nil - - - - Report Authorisation Glenn Trenear NATA Accredited Laboratory Client Manager No. 14601 Accredited for compliance with ISO/IEC 17025. NATA is a signatory to the ILAC mutual recognition arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports Report R001301 prepared for AETV Pty Ltd, GEORGETOWN Page 2 of 8 Ektimo 13 July 2015 Table of Contents 1 Licence Comparison ...... 4 2 Executive Summary ...... 4 3 Results ...... 5 3.1 U104 ...... 5 4 Plant Operating Conditions ...... 6 5 Test Methods...... 6 6 Quality Assurance/ Quality Control Information ...... 7 7 Definitions ...... 8 Report R001301 prepared for AETV Pty Ltd, GEORGETOWN Page 3 of 8 Ektimo 13 July 2015 1 LICENCE COMPARISON Parameter Source Units Oxides of nitrogen (as NO2) Oxides of nitrogen (as NO2) Carbon Monoxide (corrected to 15% O2) Licence Limit NA 60 NA U104 mg/m3 Detected Values 40 46 29 Note: All analytes highlighted in green are below the licence limit set by the Tasmanian EPA as per licence EPN#7898/1. 2 EXECUTIVE SUMMARY Ektimo was engaged by AETV Pty Ltd to perform emission monitoring. Monitoring was performed as follows; Location Test Date Test Parameters* U104 29 June 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen * Flow rate, velocity, temperature and moisture were determined unless otherwise stated The methodologies chosen by Ektimo are those recommended by the Victorian Environment Protection Authority (as specified in A Guide to Sampling and Analysis of Air Emissions and Air Quality, December 2002). Report R001301 prepared for AETV Pty Ltd, GEORGETOWN Page 4 of 8 Ektimo 13 July 2015 3 RESULTS 3.1 U104 Date 29/06/2015 Client AETV Pty Ltd Report R001301 Stack ID U104 Licence No. 7898/1 Location Georgetown State TAS Ektimo Staff GT Process Conditions Please refer to client records. Reason for testing: Air emission testing for Tasmanian EPA Licence purposes space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 3640 Sampling plane area 10.4 m² Sampling port size, number & depth 4" BSP (x4), 300 mm Access & height of ports Stairs & fixed ladder 10 m Duct orientation & shape Vertical Circular Downstream disturbance Exit 1 D Upstream disturbance Change in diameter 5 D No. traverses & points sampled 2 28 Compliance to AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Unless otherwise indicated, the methods cited in this report have been performed without deviation All results reported on a dry basis at STP space space space space space space space space space space space Stack Parameters Moisture content, %v/v 11 Gas molecular weight, g/g mole 27.9 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.25 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.17 Gas Flow Parameters Temperature, °C 420 Velocity at sampling plane, m/s 31 Volumetric flow rate, discharge, m³/min 20000 Volumetric flow rate (wet STP), m³/min 7800 Volumetric flow rate (dry STP), m³/min 7000 Mass flow rate (wet basis), kg/hour 590000 Velocity difference, % <1 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1311-1410 1311-1410 1311-1410 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 40 46 280 27 31 190 44 51 300 Carbon monoxide 29 33 200 25 29 170 31 37 220 Concentration Concentration Concentration % % % Carbon dioxide 3 2.8 3.1 Oxygen 15.9 15.7 16.1 Report R001301 prepared for AETV Pty Ltd, GEORGETOWN Page 5 of 8 Ektimo 13 July 2015 4 PLANT OPERATING CONDITIONS Unless otherwise stated, the plant operating conditions were normal at the time of testing. See AETV Pty Ltd’s records for complete process conditions. 5 TEST METHODS All sampling and analysis was performed by Ektimo unless otherwise specified. Specific details of the methods are available upon request * Uncertainty values cited in this table are calculated at the 95% confidence level (coverage factor = 2) Report R001301 prepared for AETV Pty Ltd, GEORGETOWN Page 6 of 8 Ektimo 13 July 2015 6 QUALITY ASSURANCE/ QUALITY CONTROL INFORMATION Ektimo (EML), Ektimo (ETC) and Ektimo (ECS) are accredited by the National Association of Testing Authorities (NATA) for the sampling and analysis of air pollutants from industrial sources. Unless otherwise stated test methods used are accredited with the National Association of Testing Authorities. For full details, search for Ektimo at NATA’s website www.nata.com.au. Ektimo (EML), Ektimo (ETC) and Ektimo (ECS) are accredited by NATA (National Association of Testing Authorities) to ISO/IEC 17025. – General Requirements for the Competence of Testing and Calibration Laboratories. ISO/IEC 17025 requires that a laboratory have adequate equipment to perform the testing, as well as laboratory personnel with the competence to perform the testing. This quality assurance system is administered and maintained by the Compliance Manager. NATA is a member of APLAC (Asia Pacific Laboratory Accreditation Co-operation) and of ILAC (International Laboratory Accreditation Co-operation). Through the mutual recognition arrangements with both of these organisations, NATA accreditation is recognised world –wide. A formal Quality Control program is in place at Ektimo to monitor analyses performed in the laboratory and sampling conducted in the field. The program is designed to check where appropriate; the sampling reproducibility, analytical method, accuracy, precision and the performance of the analyst. The Laboratory Manager is responsible for the administration and maintenance of this program. Report R001301 prepared for AETV Pty Ltd, GEORGETOWN Page 7 of 8 Ektimo 13 July 2015 7 DEFINITIONS The following symbols and abbreviations may be used in this test report: STP Standard temperature and pressure. Gas volumes and concentrations are expressed on a dry basis at 0°C, at discharge oxygen concentration and an absolute pressure of 101.325 kPa, unless otherwise specified. Disturbance A flow obstruction or instability in the direction of the flow which may impede accurate flow determination. This includes centrifugal fans, axial fans, partially closed or closed dampers, louvres, bends, connections, junctions, direction changes or changes in pipe diameter. VOC Any chemical compound based on carbon with a vapour pressure of at least 0.010 kPa at 25°C or having a corresponding volatility under the particular conditions of use. These compounds may contain oxygen, nitrogen and other elements, but specifically excluded are carbon monoxide, carbon dioxide, carbonic acid, metallic carbides and carbonate salts. TOC The sum of all compounds of carbon which contain at least one carbon to carbon bond, plus methane and its derivatives. OU The number of odour units per unit of volume. The numerical value of the odour concentration is equal to the number of dilutions to arrive at the odour threshold (50% panel response). PM2.5 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 2.5 microns (µm). PM10 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 10 microns (µm). BSP British standard pipe NT Not tested or results not required NA Not applicable D50 ‘Cut size’ of a cyclone defined as the particle diameter at which the cyclone achieves a 50% collection efficiency ie. half of the particles are retained by the cyclone and half are not and pass through it to the next stage. The D50 method simplifies the capture efficiency distribution by assuming that a given cyclone stage captures all of the particles with a diameter equal to or greater than the D50 of that cyclone and less than the D50 of the preceding cyclone. D Duct diameter or equivalent duct diameter for rectangular ducts < Less than > Greater than ≥ Greater than or equal to ~ Approximately CEM Continuous Emission Monitoring CEMS Continuous Emission Monitoring System DER WA Department of Environment & Regulation DECC Department of Environment & Climate Change (NSW) EPA Environment Protection Authority FTIR Fourier Transform Infra Red NATA National Association of Testing Authorities RATA Relative Accuracy Test Audit AS Australian Standard USEPA United States Environmental Protection Agency Vic EPA Victorian Environment Protection Authority ISC Intersociety committee, Methods of Air Sampling and Analysis ISO International Organisation for Standardisation APHA American public health association, Standard Methods for the Examination of Water and Waste Water CARB Californian Air Resources Board TM Test Method OM Other approved method CTM Conditional test method VDI Verein Deutscher Ingenieure (Association of German Engineers) NIOSH National Institute of Occupational Safety and Health XRD X-ray Diffractometry Report R001301 prepared for AETV Pty Ltd, GEORGETOWN Page 8 of 8 APPENDIX D4 – Q3 2015 Stack Testing Report (September 2015) Report No. R001470. Quarter Three Compliance - 2015. Emission Testing Report. Prepared for AETV. Prepared by Ektimo. (Ektimo, 3 September 2015) Appendix D4 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) APPENDIX D5 – Q4 2015 Stack Testing Report (December 2015) Report No. R002001. Quarter Four - 2015. Emission Testing Report. Prepared for AETV. Prepared by Ektimo. (Ektimo, 21 December 2015) Appendix D5 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Report Number R002001 Emission Testing Report Quarter 4 - 2015 AETV Pty Ltd, Georgetown This document is confidential and is prepared for the exclusive use of AETV Pty Ltd and those granted permission by AETV Pty Ltd. Ektimo 21 December 2015 Document Information Client Name: AETV Pty Ltd Report Number: R002001 Date of Issue: 21 December 2015 Attention: Chris Ashley Address: East Tamar Highway GEORGETOWN TAS 7253 Testing Laboratory: Ektimo (ETC) ABN 74 474 273 172 Report Status Format Document Number Report Date Prepared By Reviewed By (1) Reviewed By (2) Preliminary Report - - - - - Draft Report - - - - - Final Report R002001 21/12/2015 JWe BSt GTr Amend Report - - - - - Template Version: 151203 Amendment Record Document Number Initiator Report Date Section Reason Nil - - - - Report Authorisation Glenn Trenear NATA Accredited Laboratory Client Manager No. 14601 Accredited for compliance with ISO/IEC 17025. NATA is a signatory to the ILAC mutual recognition arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 2 of 10 Ektimo 21 December 2015 Table of Contents 1 Executive Summary ...... 4 2 Results Summary ...... 4 3 Results ...... 5 3.1 U101-A ...... 5 3.2 U101-B ...... 6 3.3 U102-A ...... 7 3.4 U103-A ...... 8 4 Test Methods...... 9 5 Quality Assurance/ Quality Control Information ...... 9 6 Definitions ...... 10 Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 3 of 10 Ektimo 21 December 2015 1 EXECUTIVE SUMMARY Ektimo was engaged by AETV Pty Ltd to perform emission monitoring Results from the testing program indicate that AETV Pty Ltd was within the requirements of the Licence during the sampling period. Monitoring was performed as follows; Location Test Date Test Parameters* U101-A 2 December 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U101-B 2 December 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U102-A 2 December 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U103-A 3 December 2015 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen * Flow rate, velocity, temperature and moisture were determined unless otherwise stated The methodologies chosen by Ektimo are those recommended by the Victorian Environment Protection Authority (as specified in A Guide to Sampling and Analysis of Air Emissions and Air Quality, December 2002). All results are reported on a dry basis at STP. Unless otherwise indicated, the methods cited in this report have been performed without deviation. Plant operating conditions have been noted in the report. 2 RESULTS SUMMARY The following licence comparison table shows that all analytes highlighted in green are below the Licence Limit set by the Tasmanian EPA as per licence EPN 7898/1. The Oxides of Nitrogen (as NO2) corrected to 15% O2 detected value for units U101-B and U102-A has been reported to 3 significant figures for the license comparison table. This has been done to highlight the fact that both were below the license limit 70 mg/m3. Licence Detected EPA No. Location Description Pollutant Units limit values 3 Oxides of nitrogen (as NO2) mg/m NA 62 3 U101-A Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m 70 69 Carbon Monoxide mg/m3 NA 23 Oxides of nitrogen (as NO2) mg/m3 NA 62 U101-B Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m3 70 69.7 Carbon Monoxide mg/m3 NA 15 1 Oxides of nitrogen (as NO2) mg/m3 NA 63 U102-A Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m3 70 69.8 Carbon Monoxide mg/m3 NA 29 3 Oxides of nitrogen (as NO2) mg/m NA 63 3 U103-A Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m 70 67 Carbon Monoxide mg/m3 NA 51 Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 4 of 10 Ektimo 21 December 2015 3 RESULTS 3.1 U101-A Date 2/12/2015 Client AETV Pty Ltd Report R002001 Stack ID U101-A Licence No. EPN 7898/1 Location Georgetown State TAS Ektimo Staff GTr/Swe Process Conditions Unit 101 A and B running at a combined 38 MW Reason for testing: Client requested testing to determine emissions to air space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Sampling port size, number & depth 4" BSP (x9), 90 mm Access & height of ports Elevated work platform 10 m Duct orientation & shape Vertical Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Compliance to AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D space space space space space space space space space space space Stack Parameters Moisture content, %v/v 6.3 Gas molecular weight, g/g mole 28.5 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.11 space space space space space space space space space space space Gas Flow Parameters Temperature, °C 445 Velocity at sampling plane, m/s 48 Volumetric flow rate, discharge, m³/min 20000 Volumetric flow rate (wet STP), m³/min 7500 Volumetric flow rate (dry STP), m³/min 7000 Mass flow rate (wet basis), kg/hour 570000 Velocity difference, % 2 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1454-1553 1454-1553 1454-1553 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 62 69 440 55 62 390 67 74 470 Carbon monoxide 23 26 160 20 22 140 29 32 200 Concentration Concentration Concentration % % % Carbon dioxide 3.2 3 3.2 Oxygen 15.6 15.5 15.8 Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 5 of 10 Ektimo 21 December 2015 3.2 U101-B Date 2/12/2015 Client AETV Pty Ltd Report R002001 Stack ID U101-B Licence No. EPN 7898/1 Location Georgetown State TAS Ektimo Staff GTr/Swe Process Conditions Unit 101 A and B running at a combined 38 MW Reason for testing: Client requested testing to determine emissions to air space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Sampling port size, number & depth 4" BSP (x9), 90 mm Access & height of ports Elevated work platform 10 m Duct orientation & shape Vertical Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Compliance to AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D space space space space space space space space space space space Stack Parameters Moisture content, %v/v 6.1 Gas molecular weight, g/g mole 28.6 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.13 space space space space space space space space space space space Gas Flow Parameters Temperature, °C 434 Velocity at sampling plane, m/s 39 Volumetric flow rate, discharge, m³/min 16000 Volumetric flow rate (wet STP), m³/min 6300 Volumetric flow rate (dry STP), m³/min 5900 Mass flow rate (wet basis), kg/hour 480000 Velocity difference, % 4 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1604-1705 1604-1705 1604-1705 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 62 70 360 52 58 310 67 75 400 Carbon monoxide 15 17 89 14 16 81 24 27 140 Concentration Concentration Concentration % % % Carbon dioxide 3.1 3.1 3.2 Oxygen 15.7 15.6 15.8 Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 6 of 10 Ektimo 21 December 2015 3.3 U102-A Date 2/12/2015 Client AETV Pty Ltd Report R002001 Stack ID U102-A Licence No. EPN 7898/1 Location Georgetown State TAS Ektimo Staff GTr/Swe Process Conditions Unit running at 20MW Reason for testing: Client requested testing to determine emissions to air space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Sampling port size, number & depth 4" BSP (x9), 90 mm Access & height of ports Elevated work platform 10 m Duct orientation & shape Vertical Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Compliance to AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D space space space space space space space space space space space Stack Parameters Moisture content, %v/v 6.2 Gas molecular weight, g/g mole 28.5 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.11 space space space space space space space space space space space Gas Flow Parameters Temperature, °C 434 Velocity at sampling plane, m/s 47 Volumetric flow rate, discharge, m³/min 19000 Volumetric flow rate (wet STP), m³/min 7400 Volumetric flow rate (dry STP), m³/min 7000 Mass flow rate (wet basis), kg/hour 570000 Velocity difference, % 2 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1728-1827 1728-1827 1728-1827 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 63 70 440 57 64 400 67 75 470 Carbon monoxide 29 32 200 24 26 170 32 36 230 Concentration Concentration Concentration % % % Carbon dioxide 3.2 3.1 3.2 Oxygen 15.6 15.5 15.8 Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 7 of 10 Ektimo 21 December 2015 3.4 U103-A Date 3/12/2015 Client AETV Pty Ltd Report R002001 Stack ID U103-A Licence No. EPN 7898/1 Location Georgetown State TAS Ektimo Staff GTr/Swe Process Conditions Unit running at 20 MW Reason for testing: Client requested testing to determine emissions to air space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Sampling port size, number & depth 4" BSP (x9), 90 mm Access & height of ports Elevated work platform 10 m Duct orientation & shape Vertical Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Compliance to AS4323.1 Compliant but non-ideal space space space space space space space space space space space Comments The sampling plane is too near to the downstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D space space space space space space space space space space space Stack Parameters Moisture content, %v/v 6.4 Gas molecular weight, g/g mole 28.5 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.07 space space space space space space space space space space space Gas Flow Parameters Temperature, °C 453 Velocity at sampling plane, m/s 46 Volumetric flow rate, discharge, m³/min 19000 Volumetric flow rate (wet STP), m³/min 7200 Volumetric flow rate (dry STP), m³/min 6700 Mass flow rate (wet basis), kg/hour 550000 Velocity difference, % <1 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 915-1014 915-1014 915-1014 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 63 67 420 59 63 400 65 70 440 Carbon monoxide 51 55 350 46 50 310 57 62 390 Concentration Concentration Concentration % % % Carbon dioxide 3.2 3.2 3.3 Oxygen 15.4 15.3 15.5 Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 8 of 10 Ektimo 21 December 2015 4 TEST METHODS All sampling and analysis was performed by Ektimo unless otherwise specified. Specific details of the methods are available upon request *Uncertainty values cited in this table are calculated at the 95% confidence level (coverage factor = 2) 5 QUALITY ASSURANCE/ QUALITY CONTROL INFORMATION Ektimo (EML) and Ektimo (ETC) are accredited by the National Association of Testing Authorities (NATA) for the sampling and analysis of air pollutants from industrial sources. Unless otherwise stated test methods used are accredited with the National Association of Testing Authorities. For full details, search for Ektimo at NATA’s website www.nata.com.au. Ektimo (EML) and Ektimo (ETC) are accredited by NATA (National Association of Testing Authorities) to ISO/IEC 17025. – General Requirements for the Competence of Testing and Calibration Laboratories. ISO/IEC 17025 requires that a laboratory have adequate equipment to perform the testing, as well as laboratory personnel with the competence to perform the testing. This quality assurance system is administered and maintained by the Compliance Manager. NATA is a member of APLAC (Asia Pacific Laboratory Accreditation Co-operation) and of ILAC (International Laboratory Accreditation Co-operation). Through the mutual recognition arrangements with both of these organisations, NATA accreditation is recognised world –wide. A formal Quality Control program is in place at Ektimo to monitor analyses performed in the laboratory and sampling conducted in the field. The program is designed to check where appropriate; the sampling reproducibility, analytical method, accuracy, precision and the performance of the analyst. The Laboratory Manager is responsible for the administration and maintenance of this program. Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 9 of 10 Ektimo 21 December 2015 6 DEFINITIONS The following symbols and abbreviations may be used in this test report: STP Standard temperature and pressure. Gas volumes and concentrations are expressed on a dry basis at 0°C, at discharge oxygen concentration and an absolute pressure of 101.325 kPa, unless otherwise specified. Disturbance A flow obstruction or instability in the direction of the flow which may impede accurate flow determination. This includes centrifugal fans, axial fans, partially closed or closed dampers, louvres, bends, connections, junctions, direction changes or changes in pipe diameter. VOC Any chemical compound based on carbon with a vapour pressure of at least 0.010 kPa at 25°C or having a corresponding volatility under the particular conditions of use. These compounds may contain oxygen, nitrogen and other elements, but specifically excluded are carbon monoxide, carbon dioxide, carbonic acid, metallic carbides and carbonate salts. TOC The sum of all compounds of carbon which contain at least one carbon to carbon bond, plus methane and its derivatives. OU The number of odour units per unit of volume. The numerical value of the odour concentration is equal to the number of dilutions to arrive at the odour threshold (50% panel response). PM2.5 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 2.5 microns (µm). PM10 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 10 microns (µm). BSP British standard pipe NT Not tested or results not required NA Not applicable D50 ‘Cut size’ of a cyclone defined as the particle diameter at which the cyclone achieves a 50% collection efficiency ie. half of the particles are retained by the cyclone and half are not and pass through it to the next stage. The D50 method simplifies the capture efficiency distribution by assuming that a given cyclone stage captures all of the particles with a diameter equal to or greater than the D50 of that cyclone and less than the D50 of the preceding cyclone. D Duct diameter or equivalent duct diameter for rectangular ducts < Less than > Greater than ≥ Greater than or equal to ~ Approximately CEM Continuous Emission Monitoring CEMS Continuous Emission Monitoring System DER WA Department of Environment & Regulation DECC Department of Environment & Climate Change (NSW) EPA Environment Protection Authority FTIR Fourier Transform Infra Red NATA National Association of Testing Authorities RATA Relative Accuracy Test Audit AS Australian Standard USEPA United States Environmental Protection Agency Vic EPA Victorian Environment Protection Authority ISC Intersociety committee, Methods of Air Sampling and Analysis ISO International Organisation for Standardisation APHA American public health association, Standard Methods for the Examination of Water and Waste Water CARB Californian Air Resources Board TM Test Method OM Other approved method CTM Conditional test method VDI Verein Deutscher Ingenieure (Association of German Engineers) NIOSH National Institute of Occupational Safety and Health XRD X-ray Diffractometry Report R002001 prepared for AETV Pty Ltd, GEORGETOWN Page 10 of 10 APPENDIX D6 – Q1 2016 Stack Testing Report (April 2016) Report No. R002425. Quarter Three Compliance - 2015. Emission Testing Report. Prepared for AETV. Prepared by Ektimo. (Ektimo, 22 April 2016) Appendix D6 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Report Number R002425 Quarter Three Compliance - 2015 Emission Testing Report AETV Pty Ltd, Georgetown This document is confidential and is prepared for the exclusive use of AETV Pty Ltd and those granted permission by AETV Pty Ltd. Ektimo 22 April 2016 Document Information Client Name: AETV Pty Ltd Report Number: R002425 Date of Issue: 22 April 2016 Attention: Chris Ashley Address: East Tamar Highway GEORGETOWN TAS 7253 Testing Laboratory: Ektimo (ETC) ABN 74 474 273 172 Report Status Format Document Number Report Date Prepared By Reviewed By (1) Reviewed By (2) Preliminary Report - - - - - Draft Report - - - - - Final Report R002425 22/04/2016 JWe JSn GTr Amend Report - - - - - Template Version: 160330 Amendment Record Document Number Initiator Report Date Section Reason Nil - - - - Report Authorisation Glenn Trenear NATA Accredited Laboratory Client Manager No. 14601 Accredited for compliance with ISO/IEC 17025. NATA is a signatory to the ILAC mutual recognition arrangement for the mutual recognition of the equivalence of testing, calibration and inspection reports Report R002425 prepared for AETV Pty Ltd, Georgetown Page 2 of 11 Ektimo 22 April 2016 Table of Contents 1 Executive Summary ...... 4 2 Results Summary ...... 4 3 Results ...... 5 3.1 U101-A ...... 5 3.2 U101-B ...... 6 3.3 U103-A ...... 7 3.4 U104 ...... 8 3.5 U201 ...... 9 4 Test Methods...... 10 5 Quality Assurance/ Quality Control Information ...... 10 6 Definitions ...... 11 Report R002425 prepared for AETV Pty Ltd, Georgetown Page 3 of 11 Ektimo 22 April 2016 1 EXECUTIVE SUMMARY Ektimo was engaged by AETV Pty Ltd to perform emission monitoring. Results from this stack emission monitoring program indicate that AETV Pty Ltd was compliant with requirements of Licence EPN 7898/1 during the sampling period. Monitoring was performed as follows: Location Test Date Test Parameters* U101-A 31 March 2016 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U101-B 31 March 2016 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U103-A 30 March 2016 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U104 30 March 2016 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen U201 31 March 2016 Nitrogen oxides (NOx) as NO2, carbon monoxide, carbon dioxide and oxygen * Flow rate, velocity, temperature and moisture were determined unless otherwise stated The methodologies chosen by Ektimo are those recommended by the Victorian Environment Protection Authority (as specified in A Guide to Sampling and Analysis of Air Emissions and Air Quality, December 2002). All results are reported on a dry basis at STP. Unless otherwise indicated, the methods cited in this report have been performed without deviation. Plant operating conditions have been noted in the report. 2 RESULTS SUMMARY The following licence comparison table shows that all analytes highlighted in green are below the licence limit set by the Tasmanian EPA as per licence EPN 7898/1. Licence Detected Location Description Pollutant Units limit values 3 Oxides of nitrogen (as NO2) mg/m NA 49 3 U101-A Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m 70 54 Carbon Monoxide mg/m3 NA 54 Oxides of nitrogen (as NO2) mg/m3 NA 53 U101-B Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m3 70 61 Carbon Monoxide mg/m3 NA 37 3 Oxides of nitrogen (as NO2) mg/m NA 50 3 U103-A Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m 70 55 Carbon Monoxide mg/m3 NA 42 Oxides of nitrogen (as NO2) mg/m3 NA 34 U104 Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m3 60 33 Carbon Monoxide mg/m3 NA 60 Oxides of nitrogen (as NO2) mg/m3 NA 48 U201 Oxides of nitrogen (as NO2) Corrected to 15% O2 mg/m3 60 48 Carbon Monoxide mg/m3 NA 19 Report R002425 prepared for AETV Pty Ltd, Georgetown Page 4 of 11 Ektimo 22 April 2016 3 RESULTS 3.1 U101-A Date 31/03/2016 Client AETV Pty Ltd Report R002425 Stack ID U101-A Licence No. EPN 7898/1 Location Georgetown State TAS Process Conditions Unit at 36KW combined space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Sampling port size, number & depth 4" BSP (x9), 90 mm Access & height of ports Elevated work platform 10 m Duct orientation & shape Vertical Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Compliance of sample plane to AS4323.1 Compliant but non-ideal⁽¹⁾ space space space space space space space space space space space Stack Parameters Moisture content, %v/v 6.3 Gas molecular weight, g/g mole 28.5 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.11 Gas Flow Parameters Measurement time (hhmm) 930 Temperature, °C 445 Velocity at sampling plane, m/s 46 Volumetric flow rate, discharge, m³/min 19000 Volumetric flow rate (wet STP), m³/min 7200 Volumetric flow rate (dry STP), m³/min 6800 Mass flow rate (wet basis), kg/hour 550000 Velocity difference, % -2 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 930-1029 930-1029 930-1029 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 49 54 330 46 51 310 53 58 360 Carbon monoxide 54 59 360 46 51 310 59 65 400 Concentration Concentration Concentration % % % Carbon dioxide 3.1 2.9 3.2 Oxygen 15.6 15.4 15.7 (1) The sampling plane is deemed to be non-ideal or non-compliant due to the follow ing reasons: The sampling plane is too near to the dow nstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Report R002425 prepared for AETV Pty Ltd, Georgetown Page 5 of 11 Ektimo 22 April 2016 3.2 U101-B Date 31/03/2016 Client AETV Pty Ltd Report R002425 Stack ID U101-B Licence No. EPN 7898/1 Location Georgetown State TAS Process Conditions Unit at 37KW combined space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Sampling port size, number & depth 4" BSP (x9), 90 mm Access & height of ports Elevated work platform 10 m Duct orientation & shape Vertical Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Compliance of sample plane to AS4323.1 Compliant but non-ideal⁽¹⁾ space space space space space space space space space space space Stack Parameters Moisture content, %v/v 6.3 Gas molecular weight, g/g mole 28.5 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.15 Gas Flow Parameters Measurement time (hhmm) 1045 Temperature, °C 430 Velocity at sampling plane, m/s 43 Volumetric flow rate, discharge, m³/min 18000 Volumetric flow rate (wet STP), m³/min 6800 Volumetric flow rate (dry STP), m³/min 6400 Mass flow rate (wet basis), kg/hour 520000 Velocity difference, % <1 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1047-1146 1047-1146 1047-1146 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 53 61 340 45 52 290 57 65 360 Carbon monoxide 37 43 240 34 39 220 45 52 290 Concentration Concentration Concentration % % % Carbon dioxide 3 2.9 3.1 Oxygen 15.8 15.6 16 (1) The sampling plane is deemed to be non-ideal or non-compliant due to the follow ing reasons: The sampling plane is too near to the dow nstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Report R002425 prepared for AETV Pty Ltd, Georgetown Page 6 of 11 Ektimo 22 April 2016 3.3 U103-A Date 30/03/2016 Client AETV Pty Ltd Report R002425 Stack ID U103-A Licence No. EPN 7898/1 Location Georgetown State TAS Process Conditions Please refer to client records. space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 4060 x 1700 mm Sampling plane area 6.9 m² Sampling port size, number & depth 4" BSP (x9), 90 mm Access & height of ports Elevated work platform 10 m Duct orientation & shape Vertical Rectangular Downstream disturbance Exit 1.5 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 4 24 Compliance of sample plane to AS4323.1 Compliant but non-ideal⁽¹⁾ space space space space space space space space space space space Stack Parameters Moisture content, %v/v 7 Gas molecular weight, g/g mole 28.5 (wet) 29.2 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.30 (dry) % Oxygen correction & Factor 15 % 1.10 Gas Flow Parameters Measurement time (hhmm) 1235 Temperature, °C 450 Velocity at sampling plane, m/s 43 Volumetric flow rate, discharge, m³/min 18000 Volumetric flow rate (wet STP), m³/min 6800 Volumetric flow rate (dry STP), m³/min 6300 Mass flow rate (wet basis), kg/hour 510000 Velocity difference, % <1 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1232-1331 1232-1331 1232-1331 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 50 55 310 45 49 280 53 58 330 Carbon monoxide 42 47 270 40 44 250 44 48 270 Concentration Concentration Concentration % % % Carbon dioxide 3.1 3 3.2 Oxygen 15.5 15.5 15.6 (1) The sampling plane is deemed to be non-ideal or non-compliant due to the follow ing reasons: The sampling plane is too near to the dow nstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Report R002425 prepared for AETV Pty Ltd, Georgetown Page 7 of 11 Ektimo 22 April 2016 3.4 U104 Date 30/03/2016 Client AETV Pty Ltd Report R002425 Stack ID U104 Licence No. EPN 7898/1 Location Georgetown State TAS Process Conditions 58MW space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 3640 mm Sampling plane area 10.4 m² Sampling port size, number & depth 4" BSP (x4), 300 mm Access & height of ports Stairs & fixed ladder 10 m Duct orientation & shape Vertical Circular Downstream disturbance Exit 1 D Upstream disturbance Change in diameter 5 D No. traverses & points sampled 2 28 Compliance of sample plane to AS4323.1 Compliant but non-ideal⁽¹⁾ space space space space space space space space space space space Stack Parameters Moisture content, %v/v 10 Gas molecular weight, g/g mole 28.1 (wet) 29.3 (dry) Gas density at STP, kg/m³ 1.26 (wet) 1.31 (dry) % Oxygen correction & Factor 15 % 0.96 Gas Flow Parameters Measurement time (hhmm) 1530 Temperature, °C 422 Velocity at sampling plane, m/s 37 Volumetric flow rate, discharge, m³/min 23000 Volumetric flow rate (wet STP), m³/min 9100 Volumetric flow rate (dry STP), m³/min 8200 Mass flow rate (wet basis), kg/hour 680000 Velocity difference, % <1 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 1456-1555 1456-1555 1456-1555 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 34 33 280 33 31 270 36 35 290 Carbon monoxide 60 58 490 56 54 460 65 62 530 Concentration Concentration Concentration % % % Carbon dioxide 3.6 3.6 3.6 Oxygen 14.8 14.7 14.8 (1) The sampling plane is deemed to be non-ideal or non-compliant due to the follow ing reasons: The sampling plane is too near to the dow nstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Report R002425 prepared for AETV Pty Ltd, Georgetown Page 8 of 11 Ektimo 22 April 2016 3.5 U201 Date 31/03/2016 Client AETV Pty Ltd Report R002425 Stack ID U201 Licence No. EPN 7898/1 Location Georgetown State TAS Process Conditions 585MW space space space space space space space space space space space Sampling Plane Details Sampling plane dimensions 5500 mm Sampling plane area 23.8 m² Sampling port size, number 4" Flange (x6) Access & height of ports Stairs 35 m Duct orientation & shape Vertical Circular Downstream disturbance Exit 1 D Upstream disturbance Change in diameter 3 D No. traverses & points sampled 3 42 Compliance of sample plane to AS4323.1 Compliant but non-ideal⁽¹⁾ space space space space space space space space space space space Stack Parameters Moisture content, %v/v 6.7 Gas molecular weight, g/g mole 28.5 (wet) 29.3 (dry) Gas density at STP, kg/m³ 1.27 (wet) 1.31 (dry) % Oxygen correction & Factor 15 % 1.00 Gas Flow Parameters Measurement time (hhmm) 0800 Temperature, °C 103 Velocity at sampling plane, m/s 31 Volumetric flow rate, discharge, m³/min 43000 Volumetric flow rate (wet STP), m³/min 32000 Volumetric flow rate (dry STP), m³/min 30000 Mass flow rate (wet basis), kg/hour 2400000 Velocity difference, % <1 space space space space space space space space space space space Gases Average Minimum Maximum Sampling time 801-900 801-900 801-900 Corrected to 15% Corrected to 15% Corrected to 15% Concentration O2 M ass Rate Concentration O2 M ass Rate Concentration O2 M ass Rate mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min mg/m³ mg/m³ g/min Nitrogen oxides (as NO2) 48 48 1400 39 39 1200 50 50 1500 Carbon monoxide 19 18 550 16 16 480 20 20 590 Concentration Concentration Concentration % % % Carbon dioxide 3.3 3.2 3.4 Oxygen 15 15 15 (1) The sampling plane is deemed to be non-ideal or non-compliant due to the follow ing reasons: The sampling plane is too near to the dow nstream disturbance but is greater than or equal to 1D The sampling plane is too near to the upstream disturbance but is greater than or equal to 2D Report R002425 prepared for AETV Pty Ltd, Georgetown Page 9 of 11 Ektimo 22 April 2016 4 TEST METHODS All sampling and analysis was performed by Ektimo unless otherwise specified. Specific details of the methods are available upon request 5 QUALITY ASSURANCE/ QUALITY CONTROL INFORMATION Ektimo (EML) and Ektimo (ETC) are accredited by the National Association of Testing Authorities (NATA) for the sampling and analysis of air pollutants from industrial sources. Unless otherwise stated test methods used are accredited with the National Association of Testing Authorities. For full details, search for Ektimo at NATA’s website www.nata.com.au. Ektimo (EML) and Ektimo (ETC) are accredited by NATA (National Association of Testing Authorities) to ISO/IEC 17025. – General Requirements for the Competence of Testing and Calibration Laboratories. ISO/IEC 17025 requires that a laboratory have adequate equipment to perform the testing, as well as laboratory personnel with the competence to perform the testing. This quality assurance system is administered and maintained by the Compliance Manager. NATA is a member of APLAC (Asia Pacific Laboratory Accreditation Co-operation) and of ILAC (International Laboratory Accreditation Co-operation). Through the mutual recognition arrangements with both of these organisations, NATA accreditation is recognised world –wide. A formal Quality Control program is in place at Ektimo to monitor analyses performed in the laboratory and sampling conducted in the field. The program is designed to check where appropriate; the sampling reproducibility, analytical method, accuracy, precision and the performance of the analyst. The Laboratory Manager is responsible for the administration and maintenance of this program. Report R002425 prepared for AETV Pty Ltd, Georgetown Page 10 of 11 Ektimo 22 April 2016 6 DEFINITIONS The following symbols and abbreviations may be used in this test report: STP Standard temperature and pressure. Gas volumes and concentrations are expressed on a dry basis at 0°C, at discharge oxygen concentration and an absolute pressure of 101.325 kPa, unless otherwise specified. Disturbance A flow obstruction or instability in the direction of the flow which may impede accurate flow determination. This includes centrifugal fans, axial fans, partially closed or closed dampers, louvres, bends, connections, junctions, direction changes or changes in pipe diameter. VOC Any chemical compound based on carbon with a vapour pressure of at least 0.010 kPa at 25°C or having a corresponding volatility under the particular conditions of use. These compounds may contain oxygen, nitrogen and other elements, but specifically excluded are carbon monoxide, carbon dioxide, carbonic acid, metallic carbides and carbonate salts. TOC The sum of all compounds of carbon which contain at least one carbon to carbon bond, plus methane and its derivatives. OU The number of odour units per unit of volume. The numerical value of the odour concentration is equal to the number of dilutions to arrive at the odour threshold (50% panel response). PM2.5 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 2.5 microns (µm). PM10 Atmospheric suspended particulate matter having an equivalent aerodynamic diameter of less than approximately 10 microns (µm). BSP British standard pipe NT Not tested or results not required NA Not applicable D50 ‘Cut size’ of a cyclone defined as the particle diameter at which the cyclone achieves a 50% collection efficiency ie. half of the particles are retained by the cyclone and half are not and pass through it to the next stage. The D50 method simplifies the capture efficiency distribution by assuming that a given cyclone stage captures all of the particles with a diameter equal to or greater than the D50 of that cyclone and less than the D50 of the preceding cyclone. D Duct diameter or equivalent duct diameter for rectangular ducts < Less than > Greater than ≥ Greater than or equal to ~ Approximately CEM Continuous Emission Monitoring CEMS Continuous Emission Monitoring System DER WA Department of Environment & Regulation DECC Department of Environment & Climate Change (NSW) EPA Environment Protection Authority FTIR Fourier Transform Infra Red NATA National Association of Testing Authorities RATA Relative Accuracy Test Audit AS Australian Standard USEPA United States Environmental Protection Agency Vic EPA Victorian Environment Protection Authority ISC Intersociety committee, Methods of Air Sampling and Analysis ISO International Organisation for Standardisation APHA American public health association, Standard Methods for the Examination of Water and Waste Water CARB Californian Air Resources Board TM Test Method OM Other approved method CTM Conditional test method VDI Verein Deutscher Ingenieure (Association of German Engineers) NIOSH National Institute of Occupational Safety and Health XRD X-ray Diffractometry Report R002425 prepared for AETV Pty Ltd, Georgetown Page 11 of 11 APPENDIX E1 – Wastewaster discharge outfall pH results Appendix E1 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) AETV WASTEWATER DISCHARGE OUTFALL- DAILY AVERAGE pH DATE Average pH EPN Lower Limit EPN Upper Limit 1/04/2015 7.92 6.5 8.5 2/04/2015 7.05 6.5 8.5 3/04/2015 6.29 6.5 8.5 4/04/2015 6.48 6.5 8.5 5/04/2015 6.61 6.5 8.5 6/04/2015 6.66 6.5 8.5 7/04/2015 6.60 6.5 8.5 8/04/2015 6.49 6.5 8.5 9/04/2015 6.46 6.5 8.5 10/04/2015 6.43 6.5 8.5 11/04/2015 6.55 6.5 8.5 12/04/2015 6.54 6.5 8.5 13/04/2015 6.51 6.5 8.5 14/04/2015 6.63 6.5 8.5 15/04/2015 6.68 6.5 8.5 16/04/2015 6.69 6.5 8.5 17/04/2015 6.65 6.5 8.5 18/04/2015 6.56 6.5 8.5 19/04/2015 6.49 6.5 8.5 20/04/2015 6.46 6.5 8.5 21/04/2015 6.56 6.5 8.5 22/04/2015 6.74 6.5 8.5 23/04/2015 6.99 6.5 8.5 24/04/2015 7.15 6.5 8.5 25/04/2015 7.15 6.5 8.5 26/04/2015 7.13 6.5 8.5 27/04/2015 7.10 6.5 8.5 28/04/2015 6.95 6.5 8.5 29/04/2015 7.05 6.5 8.5 30/04/2015 6.83 6.5 8.5 1/05/2015 6.67 6.5 8.5 2/05/2015 6.58 6.5 8.5 3/05/2015 6.63 6.5 8.5 4/05/2015 6.50 6.5 8.5 5/05/2015 6.33 6.5 8.5 6/05/2015 6.23 6.5 8.5 7/05/2015 6.24 6.5 8.5 8/05/2015 6.32 6.5 8.5 9/05/2015 6.38 6.5 8.5 10/05/2015 6.35 6.5 8.5 11/05/2015 6.42 6.5 8.5 12/05/2015 6.40 6.5 8.5 13/05/2015 7.05 6.5 8.5 14/05/2015 7.99 6.5 8.5 15/05/2015 8.19 6.5 8.5 16/05/2015 8.04 6.5 8.5 17/05/2015 8.05 6.5 8.5 18/05/2015 7.95 6.5 8.5 19/05/2015 7.95 6.5 8.5 20/05/2015 7.88 6.5 8.5 21/05/2015 7.71 6.5 8.5 22/05/2015 7.67 6.5 8.5 23/05/2015 7.33 6.5 8.5 24/05/2015 7.11 6.5 8.5 25/05/2015 7.10 6.5 8.5 Printed on: 29/07/2016 Page 1 of 7 DATE Average pH EPN Lower Limit EPN Upper Limit 26/05/2015 7.06 6.5 8.5 27/05/2015 7.04 6.5 8.5 28/05/2015 7.27 6.5 8.5 29/05/2015 6.82 6.5 8.5 30/05/2015 7.72 6.5 8.5 31/05/2015 7.80 6.5 8.5 1/06/2015 7.80 6.5 8.5 2/06/2015 7.80 6.5 8.5 3/06/2015 7.53 6.5 8.5 4/06/2015 6.99 6.5 8.5 5/06/2015 7.04 6.5 8.5 6/06/2015 6.91 6.5 8.5 7/06/2015 6.51 6.5 8.5 8/06/2015 7.03 6.5 8.5 9/06/2015 6.09 6.5 8.5 10/06/2015 6.27 6.5 8.5 11/06/2015 6.57 6.5 8.5 12/06/2015 6.76 6.5 8.5 13/06/2015 6.71 6.5 8.5 14/06/2015 6.61 6.5 8.5 15/06/2015 6.60 6.5 8.5 16/06/2015 6.75 6.5 8.5 17/06/2015 6.86 6.5 8.5 18/06/2015 6.62 6.5 8.5 19/06/2015 6.53 6.5 8.5 20/06/2015 6.57 6.5 8.5 21/06/2015 6.59 6.5 8.5 22/06/2015 6.57 6.5 8.5 23/06/2015 6.61 6.5 8.5 24/06/2015 6.79 6.5 8.5 25/06/2015 6.97 6.5 8.5 26/06/2015 6.95 6.5 8.5 27/06/2015 6.88 6.5 8.5 28/06/2015 6.93 6.5 8.5 29/06/2015 6.89 6.5 8.5 30/06/2015 6.85 6.5 8.5 1/07/2015 6.91 6.5 8.5 2/07/2015 6.91 6.5 8.5 3/07/2015 6.89 6.5 8.5 4/07/2015 6.87 6.5 8.5 5/07/2015 6.88 6.5 8.5 6/07/2015 6.91 6.5 8.5 7/07/2015 5.40 6.5 8.5 8/07/2015 2.50 6.5 8.5 9/07/2015 2.50 6.5 8.5 10/07/2015 2.50 6.5 8.5 11/07/2015 2.50 6.5 8.5 12/07/2015 2.50 6.5 8.5 13/07/2015 2.50 6.5 8.5 14/07/2015 2.50 6.5 8.5 15/07/2015 2.50 6.5 8.5 16/07/2015 2.50 6.5 8.5 17/07/2015 2.50 6.5 8.5 18/07/2015 2.50 6.5 8.5 19/07/2015 2.50 6.5 8.5 20/07/2015 2.50 6.5 8.5 21/07/2015 2.50 6.5 8.5 22/07/2015 2.50 6.5 8.5 Printed on: 29/07/2016 Page 2 of 7 DATE Average pH EPN Lower Limit EPN Upper Limit 23/07/2015 2.50 6.5 8.5 24/07/2015 2.50 6.5 8.5 25/07/2015 2.50 6.5 8.5 26/07/2015 2.50 6.5 8.5 27/07/2015 2.50 6.5 8.5 28/07/2015 2.50 6.5 8.5 29/07/2015 2.50 6.5 8.5 30/07/2015 2.50 6.5 8.5 31/07/2015 2.50 6.5 8.5 1/08/2015 2.50 6.5 8.5 2/08/2015 2.50 6.5 8.5 3/08/2015 2.50 6.5 8.5 4/08/2015 2.50 6.5 8.5 5/08/2015 2.50 6.5 8.5 6/08/2015 2.50 6.5 8.5 7/08/2015 2.50 6.5 8.5 8/08/2015 2.50 6.5 8.5 9/08/2015 2.50 6.5 8.5 10/08/2015 2.50 6.5 8.5 11/08/2015 2.50 6.5 8.5 12/08/2015 2.50 6.5 8.5 13/08/2015 2.50 6.5 8.5 14/08/2015 2.50 6.5 8.5 15/08/2015 2.50 6.5 8.5 16/08/2015 2.50 6.5 8.5 17/08/2015 2.50 6.5 8.5 18/08/2015 4.31 6.5 8.5 19/08/2015 6.65 6.5 8.5 20/08/2015 6.53 6.5 8.5 21/08/2015 6.57 6.5 8.5 22/08/2015 8.69 6.5 8.5 23/08/2015 8.62 6.5 8.5 24/08/2015 8.45 6.5 8.5 25/08/2015 8.21 6.5 8.5 26/08/2015 7.88 6.5 8.5 27/08/2015 7.54 6.5 8.5 28/08/2015 7.33 6.5 8.5 29/08/2015 7.12 6.5 8.5 30/08/2015 7.08 6.5 8.5 31/08/2015 6.95 6.5 8.5 1/09/2015 6.92 6.5 8.5 2/09/2015 6.85 6.5 8.5 3/09/2015 6.97 6.5 8.5 4/09/2015 6.99 6.5 8.5 5/09/2015 6.90 6.5 8.5 6/09/2015 7.12 6.5 8.5 7/09/2015 7.08 6.5 8.5 8/09/2015 7.15 6.5 8.5 9/09/2015 7.09 6.5 8.5 10/09/2015 7.15 6.5 8.5 11/09/2015 7.32 6.5 8.5 12/09/2015 7.18 6.5 8.5 13/09/2015 7.19 6.5 8.5 14/09/2015 7.29 6.5 8.5 15/09/2015 7.29 6.5 8.5 16/09/2015 7.08 6.5 8.5 17/09/2015 7.16 6.5 8.5 18/09/2015 7.33 6.5 8.5 Printed on: 29/07/2016 Page 3 of 7 DATE Average pH EPN Lower Limit EPN Upper Limit 19/09/2015 7.45 6.5 8.5 20/09/2015 7.30 6.5 8.5 21/09/2015 7.36 6.5 8.5 22/09/2015 7.48 6.5 8.5 23/09/2015 7.27 6.5 8.5 24/09/2015 7.10 6.5 8.5 25/09/2015 7.14 6.5 8.5 26/09/2015 7.24 6.5 8.5 27/09/2015 7.57 6.5 8.5 28/09/2015 7.57 6.5 8.5 29/09/2015 7.54 6.5 8.5 30/09/2015 7.54 6.5 8.5 1/10/2015 7.64 6.5 8.5 2/10/2015 7.59 6.5 8.5 3/10/2015 7.73 6.5 8.5 4/10/2015 7.75 6.5 8.5 5/10/2015 7.69 6.5 8.5 6/10/2015 7.80 6.5 8.5 7/10/2015 7.72 6.5 8.5 8/10/2015 7.84 6.5 8.5 9/10/2015 7.85 6.5 8.5 10/10/2015 7.97 6.5 8.5 11/10/2015 8.14 6.5 8.5 12/10/2015 8.12 6.5 8.5 13/10/2015 8.04 6.5 8.5 14/10/2015 8.01 6.5 8.5 15/10/2015 7.89 6.5 8.5 16/10/2015 7.77 6.5 8.5 17/10/2015 7.96 6.5 8.5 18/10/2015 7.99 6.5 8.5 19/10/2015 7.97 6.5 8.5 20/10/2015 7.78 6.5 8.5 21/10/2015 7.44 6.5 8.5 22/10/2015 7.39 6.5 8.5 23/10/2015 7.37 6.5 8.5 24/10/2015 7.58 6.5 8.5 25/10/2015 7.82 6.5 8.5 26/10/2015 7.57 6.5 8.5 27/10/2015 7.32 6.5 8.5 28/10/2015 7.39 6.5 8.5 29/10/2015 7.67 6.5 8.5 30/10/2015 8.11 6.5 8.5 31/10/2015 8.28 6.5 8.5 1/11/2015 8.48 6.5 8.5 2/11/2015 8.38 6.5 8.5 3/11/2015 8.35 6.5 8.5 4/11/2015 8.24 6.5 8.5 5/11/2015 7.98 6.5 8.5 6/11/2015 8.16 6.5 8.5 7/11/2015 8.29 6.5 8.5 8/11/2015 8.31 6.5 8.5 9/11/2015 8.07 6.5 8.5 10/11/2015 8.06 6.5 8.5 11/11/2015 8.13 6.5 8.5 12/11/2015 8.25 6.5 8.5 13/11/2015 8.53 6.5 8.5 14/11/2015 8.63 6.5 8.5 15/11/2015 8.57 6.5 8.5 Printed on: 29/07/2016 Page 4 of 7 DATE Average pH EPN Lower Limit EPN Upper Limit 16/11/2015 8.39 6.5 8.5 17/11/2015 8.27 6.5 8.5 18/11/2015 8.18 6.5 8.5 19/11/2015 8.26 6.5 8.5 20/11/2015 8.21 6.5 8.5 21/11/2015 8.36 6.5 8.5 22/11/2015 8.58 6.5 8.5 23/11/2015 8.75 6.5 8.5 24/11/2015 8.82 6.5 8.5 25/11/2015 8.64 6.5 8.5 26/11/2015 8.68 6.5 8.5 27/11/2015 8.84 6.5 8.5 28/11/2015 8.88 6.5 8.5 29/11/2015 8.90 6.5 8.5 30/11/2015 8.91 6.5 8.5 1/12/2015 8.82 6.5 8.5 2/12/2015 8.94 6.5 8.5 3/12/2015 8.95 6.5 8.5 4/12/2015 8.92 6.5 8.5 5/12/2015 8.89 6.5 8.5 6/12/2015 9.05 6.5 8.5 7/12/2015 8.99 6.5 8.5 8/12/2015 8.65 6.5 8.5 9/12/2015 8.70 6.5 8.5 10/12/2015 8.83 6.5 8.5 11/12/2015 8.93 6.5 8.5 12/12/2015 9.06 6.5 8.5 13/12/2015 9.10 6.5 8.5 14/12/2015 9.08 6.5 8.5 15/12/2015 9.00 6.5 8.5 16/12/2015 8.87 6.5 8.5 17/12/2015 8.69 6.5 8.5 18/12/2015 8.71 6.5 8.5 19/12/2015 8.74 6.5 8.5 20/12/2015 8.72 6.5 8.5 21/12/2015 8.98 6.5 8.5 22/12/2015 8.94 6.5 8.5 23/12/2015 9.00 6.5 8.5 24/12/2015 9.19 6.5 8.5 25/12/2015 9.22 6.5 8.5 26/12/2015 8.96 6.5 8.5 27/12/2015 9.10 6.5 8.5 28/12/2015 9.20 6.5 8.5 29/12/2015 9.40 6.5 8.5 30/12/2015 9.34 6.5 8.5 31/12/2015 7.32 6.5 8.5 1/01/2016 6.88 6.5 8.5 2/01/2016 7.30 6.5 8.5 3/01/2016 7.66 6.5 8.5 4/01/2016 7.74 6.5 8.5 5/01/2016 8.14 6.5 8.5 6/01/2016 8.45 6.5 8.5 7/01/2016 8.58 6.5 8.5 8/01/2016 8.65 6.5 8.5 9/01/2016 8.70 6.5 8.5 10/01/2016 8.82 6.5 8.5 11/01/2016 8.67 6.5 8.5 12/01/2016 7.74 6.5 8.5 Printed on: 29/07/2016 Page 5 of 7 DATE Average pH EPN Lower Limit EPN Upper Limit 13/01/2016 6.95 6.5 8.5 14/01/2016 7.20 6.5 8.5 15/01/2016 7.47 6.5 8.5 16/01/2016 7.43 6.5 8.5 17/01/2016 7.55 6.5 8.5 18/01/2016 7.68 6.5 8.5 19/01/2016 7.60 6.5 8.5 20/01/2016 7.45 6.5 8.5 21/01/2016 7.40 6.5 8.5 22/01/2016 7.32 6.5 8.5 23/01/2016 7.15 6.5 8.5 24/01/2016 6.97 6.5 8.5 25/01/2016 6.90 6.5 8.5 26/01/2016 6.89 6.5 8.5 27/01/2016 7.15 6.5 8.5 28/01/2016 7.37 6.5 8.5 29/01/2016 7.39 6.5 8.5 30/01/2016 7.53 6.5 8.5 31/01/2016 7.62 6.5 8.5 1/02/2016 7.50 6.5 8.5 2/02/2016 7.38 6.5 8.5 3/02/2016 7.39 6.5 8.5 4/02/2016 7.32 6.5 8.5 5/02/2016 7.19 6.5 8.5 6/02/2016 6.73 6.5 8.5 7/02/2016 6.87 6.5 8.5 8/02/2016 7.19 6.5 8.5 9/02/2016 7.32 6.5 8.5 10/02/2016 7.36 6.5 8.5 11/02/2016 7.43 6.5 8.5 12/02/2016 7.44 6.5 8.5 13/02/2016 7.45 6.5 8.5 14/02/2016 7.48 6.5 8.5 15/02/2016 7.36 6.5 8.5 16/02/2016 7.29 6.5 8.5 17/02/2016 7.30 6.5 8.5 18/02/2016 7.42 6.5 8.5 19/02/2016 7.49 6.5 8.5 20/02/2016 7.45 6.5 8.5 21/02/2016 7.42 6.5 8.5 22/02/2016 7.36 6.5 8.5 23/02/2016 7.41 6.5 8.5 24/02/2016 7.47 6.5 8.5 25/02/2016 7.39 6.5 8.5 26/02/2016 7.51 6.5 8.5 27/02/2016 7.37 6.5 8.5 28/02/2016 7.41 6.5 8.5 29/02/2016 7.60 6.5 8.5 1/03/2016 7.62 6.5 8.5 2/03/2016 7.56 6.5 8.5 3/03/2016 7.51 6.5 8.5 4/03/2016 7.44 6.5 8.5 5/03/2016 7.40 6.5 8.5 6/03/2016 7.38 6.5 8.5 7/03/2016 7.37 6.5 8.5 8/03/2016 7.47 6.5 8.5 9/03/2016 7.59 6.5 8.5 10/03/2016 7.57 6.5 8.5 Printed on: 29/07/2016 Page 6 of 7 DATE Average pH EPN Lower Limit EPN Upper Limit 11/03/2016 7.48 6.5 8.5 12/03/2016 7.36 6.5 8.5 13/03/2016 7.30 6.5 8.5 14/03/2016 7.46 6.5 8.5 15/03/2016 7.77 6.5 8.5 16/03/2016 7.93 6.5 8.5 17/03/2016 7.74 6.5 8.5 18/03/2016 8.39 6.5 8.5 19/03/2016 8.28 6.5 8.5 20/03/2016 7.70 6.5 8.5 21/03/2016 7.74 6.5 8.5 22/03/2016 7.52 6.5 8.5 23/03/2016 7.53 6.5 8.5 24/03/2016 7.59 6.5 8.5 25/03/2016 7.67 6.5 8.5 26/03/2016 7.78 6.5 8.5 27/03/2016 7.77 6.5 8.5 28/03/2016 7.75 6.5 8.5 29/03/2016 7.86 6.5 8.5 30/03/2016 7.63 6.5 8.5 31/03/2016 7.46 6.5 8.5 Orange shading denotes probes out of service due to failure of the power supply for the meter. Red text denotes pH is above the upper pH reulatory limit of 8.5. Green text denotes pH is below the lower pH reulatory limit of 8.5. Printed on: 29/07/2016 Page 7 of 7 APPENDIX E2 – Monthly wastewaster and inline monitoring results Appendix E2 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) AETV Monthly Wastewater Retention Pond & In-Line Monitoring Results Summary - AER 2015/16 Monthly grab sample In-line Monitoring Total Kjeldahl Nitrogen as N (TKN) Comments AETV -Wastewater TVPS AETV discharge monitoring Parameter Solids (TSS) Suspended Free Chlorine Biochemical (BOD) Oxygen Demand Chemical (COD) Oxygen Demand Total Phosphorus Ammonia Nitrogen Nitrite + Nitrate as N Total Nitrogen TotalEP080/071: Petroleum Hydrocarbons -C6 Fraction C9 - C10 Fraction C14 - C15 Fraction C28 - C29 Fraction C36 Fraction C10-C36 (sum) Triahalomethanes (total) Trihalomethanes (total) WATER RAW Temp Deg.C Dissolved Oxygen (5 sat.) pH Flow kL/hr Time 90 th %'ile 8 0.5 0.5 Limit (old permit) 1 (+/- 7) No Limits Set * Deg.C of Limit (2013) 100.1 5 10.5 5 (Use 500 µg/L) 500 * amb. 80-100% 6.5-8.5 5ML/day Unit mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L µµµg/L µµµg/L µµµg/L µµµg/L µµµg/L µµµg/L µµµg/L 208.33kL/hr Date 550ML/yr Notes 14/04/15 <5 0.03 <2 <10 0.26 0.08 0.02 0.3 0.3 <20 <50 <100 <50 <50 <5 10 14.5 103.88 6.65 4.33 10.39 Probes may not be continuously submerged resulting in spurious 12/05/2015 <5 0.06 <2 11 0.16 <0.01 0.02 0.1 0.1 <20 <50 <100 <50 <50 <5 <5 10.91 103.00 6.31 4.88 10.59 readings. pH and DO are hand held probe measurements - inline probes were (June) 14/07/2015 <5 0.08 <2 <10 0.11 0.08 0.2 0.4 0.6 <20 <50 <100 <50 <50 6 10 7.9 92.30 6.89 19.70 9.3 offline pH and DO are hand held probe measurements - inline probes were offline due to instrument failure. Clean & clear discharge. Monitored daily with manual probes. (July) 4/08/2015 <5 0.06 <2 <10 0.34 0.03 0.12 0.4 0.5 <20 <50 <100 <50 <50 <5 20 6.7 98.70 6.86 12.10 9.5 Replacement due early August. 26/08/2015 <5 0.07 <2 <10 0.07 0.03 0.14 0.2 0.3 <20 <50 <100 <50 <50 12 11 9.7 101.00 7.94 4.99 9.44 pH & DO in line meters replaced. Outgoing tide. 15/09/2015 <5 0.05 <2 <10 0.06 0.06 0.12 <0.1 0.1 - <50 <100 <50 <50 - - 15.5 107.81 7.07 6.99 9.4 Low flow with units off-line. Very low flow with all units off-line. Query the need to monitor with such 29/10/2015 <5 0.05 <2 <10 0.03 0.02 0.02 <0.1 <0.1 <20 <50 <100 <50 <50 - - 17.3 109 7.19 4.69 9.55 low disharge? Nov-15 Mitsubishi lay-up, very low flows, no sampling undertaken Dec-15 Mitsubishi lay-up, very low flows, no sampling undertaken Jan-16 Mitsubishi lay-up, very low flows, no sampling undertaken First sample following cleaning of WWRP on 15-18/12/15 and restarting Unit 201 (Mitsubishi unit) on 19/1/16. (Feb) 8/02/2016 <5 0.05 <2 66 0.09 0.03 0.07 0.8 0.9 80 <50 120 <50 120 199 <5 22.4 88.1 7.92 86.7 9.06 WWRP flow meter recalibrated. Ebb tide. WW flow increased as Unit 201 is on line. WW coloured due to (Mar) 4/04/2016 16 0.09 <2 76 0.12 0.07 0.09 0.5 0.6 110 <50 <100 <50 <50 260 <5 20.5 98 8.04 71.8 11.12 being on Curries River supply. Extra low tide - had to wait for tide to come in enough to collect sample. River very turbid due to recent heavy rain. (Apr) 10/05/2016 8 0.06 3 54 0.01 0.06 0.24 0.5 0.7 70 <50 <100 <50 <50 166 14 17.6 92.3 8.03 64.5 9.05 WW coloured - Curries supply. LEGEND: Analysis results are above limits, or higher than typical results for this parameter. Mitsubishi lay-up - No monitoring required. Elevated, no limits set - needs investigation / ongoing monitoring. * Use 500 µg/L as per stormwater for comparison Date last printed: 27/07/2016 APPENDIX F1 –Quarterly near shore ambient monitoring results Appendix F1 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Near Shore Ambient Water Quality Monitoring - AETV TVPS (EPN requirement, then undertaken on a voluntary basis from 19th of May for the remainder of the 2015/16 AER reporting period) Location East North Rationale Description M1 491719 5445882 Donovans Bay monitoring Sampled from <0.5m depth M2 491660 5445795 Donovans Bay monitoring Sampled from <0.5m depth M3 (closest to Discharge) 491713 5445711 Donovans Bay monitoring Sampled from <0.5m depth M4 492082 5445297 Control site at Big Bay Sampled from <0.5m depth Analyte Units Date M1 M2 M3 M4 Comments Sampler (Control) sample taken before liaising on analytical suite Chlorophyll-a ug/L 15/03/2010 <1 1 1 2 with EPA RA Ammonia-nitrogen mg/L 12/05/2010 0.05 0.1 0.13 0.06 RA Chlorophyll-a ug/L 12/05/2010 <1 <1 <2 <2 RA Total Phosphorus mg/L 12/05/2010 0.09 0.1 0.1 0.25 RA Total Nitrogen mg/L 12/05/2010 0.2 0.3 0.4 0.2 RA Ammonia-nitrogen mg/L 30/06/2010 <0.01 <0.01 <0.01 <0.01 RA Chlorophyll-a ug/L 30/06/2010 1 3 4 1 RA Total Phosphorus mg/L 30/06/2010 <0.01 <0.01 <0.01 <0.01 RA Total Nitrogen mg/L 30/06/2010 0.2 0.5 0.6 0.9 RA Ammonia-nitrogen mg/L 28/07/2010 0.04 0.03 0.08 0.02 RA Chlorophyll-a ug/L 28/07/2010 <1 <1 <1 <1 RA Total Phosphorus mg/L 28/07/2010 3.86 0.25 0.58 0.06 RA Total Nitrogen mg/L 28/07/2010 0.5 0.4 0.9 0.4 RA Significant surface water inflow to north side of Ammonia-nitrogen mg/L 11/08/2010 0.11 0.18 0.1 0.03 Donovans Bay from creek AW Chlorophyll-a ug/L 11/08/2010 <2 2 <2 <2 AW Total Phosphorus mg/L 11/08/2010 <0.01 <0.01 <0.01 <0.01 AW Total Nitrogen mg/L 11/08/2010 0.5 0.8 0.5 0.6 AW Ammonia-nitrogen mg/L 22/09/2010 <0.01 <0.01 0.14 0.08 AW Chlorophyll-a ug/L 22/09/2010 1 2 2 <1 AW Total Phosphorus mg/L 22/09/2010 0.04 0.1 0.17 0.08 AW Note that control site M4 has higher total Total Nitrogen mg/L 22/09/2010 0.8 0.2 0.8 1.7 nitrogen than Donovan's Bay sites AW Ammonia-nitrogen mg/L 28/10/2010 0.03 0.02 <0.01 0.01 RA Chlorophyll-a ug/L 28/10/2010 <1 <1 <1 <1 RA Total Phosphorus mg/L 28/10/2010 <0.03 <0.03 <0.03 <0.03 RA Total Nitrogen mg/L 28/10/2010 0.5 0.8 0.4 0.8 RA Ammonia-nitrogen mg/L 16/11/2010 0.2 <0.1 <0.1 <0.1 AW Tide was very far out, even though it was near Chlorophyll-a ug/L 16/11/2010 10 3 4 2 high tide during sampling AW Total Phosphorus mg/L 16/11/2010 1.69 0.05 0.07 0.21 AW Total Nitrogen mg/L 16/11/2010 0.7 0.8 0.6 1 AW Ammonia-nitrogen mg/L 21/12/2010 <0.01 <0.01 <0.01 <0.01 water clear - 3/4 ebb tide AW Chlorophyll-a ug/L 21/12/2010 3 4 7 12 water clear - 3/4 ebb tide AW Total Phosphorus mg/L 21/12/2010 0.11 0.07 0.06 0.03 water clear - 3/4 ebb tide AW Total Nitrogen mg/L 21/12/2010 0.2 0.4 0.4 1.1 water clear - 3/4 ebb tide AW Ammonia-nitrogen mg/L 27/01/2011 0.34 0.26 0.32 0.28 RA Chlorophyll-a ug/L 27/01/2011 3 2 3 4 RA Total Phosphorus mg/L 27/01/2011 <0.01 0.09 0.26 0.55 RA Total Nitrogen mg/L 27/01/2011 0.5 1 1.7 2.8 RA Ammonia-nitrogen mg/L 22/02/2011 0.09 0.21 0.31 0.12 BC Chlorophyll-a ug/L 22/02/2011 <1 <1 <1 <1 BC Total Phosphorus mg/L 22/02/2011 0.1 0.04 0.22 0.12 BC Total Nitrogen mg/L 22/02/2011 0.5 0.4 1.2 0.3 BC Ammonia-nitrogen mg/L 16/03/2011 0.06 0.1 0.14 0.06 M2 and M4 were very turbid BC Chlorophyll-a ug/L 16/03/2011 2 6 <1 1 slightly more elevated chlorophyll-a in Donovans Bay BC Total Phosphorus mg/L 16/03/2011 0.09 0.15 0.14 0.13 BC Total Nitrogen mg/L 16/03/2011 0.4 0.5 0.5 0.5 BC Ammonia-nitrogen mg/L 13/04/2011 <0.01 <0.01 <0.01 <0.01 BC Chlorophyll-a ug/L 13/04/2011 <1 <1 <1 <1 BC Total Phosphorus mg/L 13/04/2011 <0.01 <0.01 <0.01 <0.01 BC Total Nitrogen mg/L 13/04/2011 0.7 0.9 0.4 0.4 BC Ammonia-nitrogen mg/L 18/05/2011 0.06 0.07 0.06 0.05 BC Chlorophyll-a ug/L 18/05/2011 3 <1 <1 3 BC Total Phosphorus mg/L 18/05/2011 <0.02 0.02 <0.02 <0.02 BC Total Nitrogen mg/L 18/05/2011 0.8 0.8 0.5 0.6 BC Ammonia-nitrogen mg/L 30/06/2011 0.04 0.09 0.91 0.05 AW Chlorophyll-a ug/L 30/06/2011 2 <1 1 3 AW Total Phosphorus mg/L 30/06/2011 <0.01 <0.01 0.06 <0.01 AW Total Nitrogen mg/L 30/06/2011 0.5 0.5 1.5 0.5 AW Ammonia-nitrogen mg/L 13/07/2011 0.05 0.08 0.02 0.03 BC Chlorophyll-a ug/L 13/07/2011 <1 <1 <1 2 BC Total Phosphorus mg/L 13/07/2011 0.03 0.09 0.21 0.45 BC Total Nitrogen mg/L 13/07/2011 0.3 0.4 0.7 0.2 BC Ammonia-nitrogen mg/L 10/08/2011 0.09 0.43 0.32 0.1 RA Chlorophyll-a ug/L 10/08/2011 <1 2 <1 1 RA Total Phosphorus mg/L 10/08/2011 0.1 0.07 0.05 0.06 RA Total Nitrogen mg/L 10/08/2011 1.5 2 0.9 1 RA Printed on: 29/07/2016 Page 1 of 4 Analyte Units Date M1 M2 M3 M4 Comments Sampler (Control) Big stormwater event prior to sampling; bays Ammonia-nitrogen mg/L 29/09/2011 0.11 0.1 0.12 0.04 turbid RA Big stormwater event prior to sampling; bays Chlorophyll-a ug/L 29/09/2011 <1 1 <1 <1 turbid RA Big stormwater event prior to sampling; bays Total Phosphorus mg/L 29/09/2011 <0.01 <0.01 <0.01 <0.01 turbid RA Big stormwater event prior to sampling; bays Total Nitrogen mg/L 29/09/2011 0.3 0.1 0.2 1 turbid RA Ammonia-nitrogen mg/L 13/10/2011 0.14 0.18 0.21 0.2 RA Chlorophyll-a ug/L 13/10/2011 <1 <1 <1 <1 RA Total Phosphorus mg/L 13/10/2011 0.04 0.06 0.06 0.02 RA Total Nitrogen mg/L 13/10/2011 0.9 1 0.8 0.2 RA Ammonia-nitrogen mg/L 17/11/2011 0.06 0.04 0.05 0.1 AW Chlorophyll-a ug/L 17/11/2011 <1 <1 1 <1 AW Total Phosphorus mg/L 17/11/2011 0.04 0.05 0.08 0.05 AW Total Nitrogen mg/L 17/11/2011 0.2 0.4 0.4 0.3 AW Ammonia-nitrogen mg/L 20/12/2011 0.05 0.06 <0.01 0.02 RA Chlorophyll-a ug/L 20/12/2011 <1 1 3 22 RA Total Phosphorus mg/L 20/12/2011 <0.01 <0.01 <0.01 <0.01 RA Total Nitrogen mg/L 20/12/2011 <0.1 0.2 0.2 <0.1 RA Ammonia-nitrogen mg/L 24/01/2012 0.06 0.08 0.07 0.1 BC Chlorophyll-a ug/L 24/01/2012 <1 <1 <1 <1 BC Total Phosphorus mg/L 24/01/2012 0.6 <0.01 <0.01 0.12 BC Total Nitrogen mg/L 24/01/2012 0.1 <0.1 <0.1 <0.1 BC Ammonia-nitrogen mg/L 21/02/2012 0.09 0.08 0.09 0.07 BC Chlorophyll-a ug/L 21/02/2012 2 3 1 4 BC Total Phosphorus mg/L 21/02/2012 0.15 0.1 0.18 0.48 BC Total Nitrogen mg/L 21/02/2012 0.8 1 0.9 0.3 BC Ammonia-nitrogen mg/L 4/04/2012 0.12 0.08 0.13 0.14 KS Chlorophyll-a ug/L 4/04/2012 2 2 <1 4 KS Total Phosphorus mg/L 4/04/2012 0.16 <0.01 0.04 <0.01 KS Total Nitrogen mg/L 4/04/2012 1 0.4 0.9 0.5 KS Ammonia-nitrogen mg/L 23/04/2012 0.02 <0.01 <0.01 0.01 KS Chlorophyll-a ug/L 23/04/2012 <1 <1 <1 <1 KS Total Phosphorus mg/L 23/04/2012 0.05 0.03 0.04 <0.01 KS Total Nitrogen mg/L 23/04/2012 0.8 0.5 0.3 1 KS Ammonia-nitrogen mg/L 30/05/2012 0.1 0.09 0.12 0.12 KS Chlorophyll-a ug/L 30/05/2012 <1 <1 <1 1 KS Total Phosphorus mg/L 30/05/2012 0.1 0.19 0.08 0.08 KS Total Nitrogen mg/L 30/05/2012 1 0.9 0.6 0.6 KS Ammonia-nitrogen mg/L 20/06/2012 0.12 <0.01 0.24 0.09 KS Chlorophyll-a ug/L 20/06/2012 <1 <1 <1 <1 KS Total Phosphorus mg/L 20/06/2012 <0.01 <0.01 0.04 0.18 KS Total Nitrogen mg/L 20/06/2012 0.4 <0.1 0.6 0.1 KS Ammonia-nitrogen mg/L 23/07/2012 0.02 0.05 0.04 0.04 KS&PF Chlorophyll-a ug/L 23/07/2012 1 2 5 16 KS&PF Total Phosphorus mg/L 23/07/2012 0.27 0.04 0.09 0.06 KS&PF Total Nitrogen mg/L 23/07/2012 0.4 0.4 0.6 0.6 KS&PF Ammonia-nitrogen mg/L 21/08/2012 0.05 0.08 0.09 0.1 KS&PF Chlorophyll-a ug/L 21/08/2012 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 21/08/2012 0.03 0.03 0.04 0.04 KS&PF Total Nitrogen mg/L 21/08/2012 0.2 <0.1 0.3 0.2 KS&PF Ammonia-nitrogen mg/L 5/09/2012 0.07 0.04 0.06 0.06 KS&PF Chlorophyll-a ug/L 5/09/2012 <1 2 2 <1 KS&PF Total Phosphorus mg/L 5/09/2012 <0.01 0.02 <0.01 <0.01 KS&PF Total Nitrogen mg/L 5/09/2012 0.1 1 <0.1 <0.1 KS&PF Ammonia-nitrogen mg/L 23/10/2012 0.06 0.08 0.08 0.06 KS&PF Chlorophyll-a ug/L 23/10/2012 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 23/10/2012 <0.01 <0.01 <0.01 <0.01 KS&PF Total Nitrogen mg/L 23/10/2012 <0.1 <0.1 <0.1 <0.1 KS&PF Ammonia-nitrogen mg/L 19/11/2012 0.14 0.12 0.22 0.11 KS&PF Chlorophyll-a ug/L 19/11/2012 <1 2 <1 1 KS&PF Total Phosphorus mg/L 19/11/2012 0.05 0.05 0.12 0.06 KS&PF Total Nitrogen mg/L 19/11/2012 0.1 0.5 0.3 <0.1 KS&PF Ammonia-nitrogen mg/L 11/12/2012 0.12 0.12 0.1 0.1 KS&PF Chlorophyll-a ug/L 11/12/2012 2 2 3 2 KS&PF Total Phosphorus mg/L 11/12/2012 0.1 0.08 0.11 0.1 KS&PF Total Nitrogen mg/L 11/12/2012 <0.1 0.1 <0.1 0.2 KS&PF Ammonia-nitrogen mg/L 23/01/2013 0.13 0.11 0.14 0.14 KS&PF Chlorophyll-a ug/L 23/01/2013 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 23/01/2013 <0.01 <0.01 <0.01 0.03 KS&PF Total Nitrogen mg/L 23/01/2013 0.3 2.3 0.2 0.1 KS&PF Ammonia-nitrogen mg/L 12/02/2013 0.08 0.08 0.1 0.1 KS&PF Chlorophyll-a ug/L 12/02/2013 <1 <1 <1 1 KS&PF Total Phosphorus mg/L 12/02/2013 0.07 0.08 0.07 0.03 KS&PF Total Nitrogen mg/L 12/02/2013 <0.1 <0.1 0.5 <0.1 KS&PF Ammonia-nitrogen mg/L 5/03/2013 0.11 0.1 0.1 0.1 KS&PF Chlorophyll-a ug/L 5/03/2013 3 2 2 2 KS&PF Total Phosphorus mg/L 5/03/2013 0.13 0.08 0.08 0.07 KS&PF Total Nitrogen mg/L 5/03/2013 0.2 <0.1 0.2 0.2 KS&PF Ammonia-nitrogen mg/L 22/04/2013 0.1 0.11 0.11 0.11 KS&PF Chlorophyll-a ug/L 22/04/2013 <1 <1 <1 <1 KS&PF Printed on: 29/07/2016 Page 2 of 4 Analyte Units Date M1 M2 M3 M4 Comments Sampler (Control) Total Phosphorus mg/L 22/04/2013 0.04 0.05 0.05 0.06 KS&PF Total Nitrogen mg/L 22/04/2013 <0.1 <0.1 <0.1 <0.1 KS&PF Ammonia-nitrogen mg/L 27/05/2013 0.14 0.17 0.18 0.18 KS&PF Chlorophyll-a mg/m 3 27/05/2013 <1 1 1 <1 KS&PF Total Phosphorus mg/L 27/05/2013 0.1 0.1 0.11 0.11 KS&PF Total Nitrogen mg/L 27/05/2013 0.3 0.3 0.3 0.4 KS&PF Ammonia-nitrogen mg/L 11/06/2013 0.02 0.02 0.2 0.2 KS&PF Chlorophyll-a mg/m 3 11/06/2013 <1 <1 2 2 KS&PF Total Phosphorus mg/L 11/06/2013 <0.01 0.06 <0.01 <0.01 KS&PF Total Nitrogen mg/L 11/06/2013 <0.1 <0.1 2.1 0.9 KS&PF Ammonia-nitrogen mg/L 8/07/2013 0.11 0.1 0.1 0.14 KS&PF Chlorophyll-a mg/m 3 8/07/2013 1 1 <1 <1 KS&PF Total Phosphorus mg/L 8/07/2013 0.02 0.02 0.06 0.02 KS&PF Total Nitrogen mg/L 8/07/2013 <0.1 <0.1 0.1 0.4 KS&PF Ammonia-nitrogen mg/L 28/08/2013 0.2 0.08 0.14 0.13 KS&PF Chlorophyll-a mg/m 3 28/08/2013 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 28/08/2013 0.13 0.04 0.03 0.05 KS&PF Total Nitrogen mg/L 28/08/2013 0.6 0.6 0.7 0.8 KS&PF Ammonia-nitrogen mg/L 16/09/2013 0.07 0.09 0.08 0.08 KS&PF Chlorophyll-a mg/m 3 16/09/2013 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 16/09/2013 0.04 0.04 0.04 0.04 KS&PF Total Nitrogen mg/L 16/09/2013 1.4 1.2 1.3 1.4 KS&PF Ammonia-nitrogen mg/L 14/10/2013 0.08 0.08 0.08 0.08 KS&PF Chlorophyll-a mg/m 3 14/10/2013 <1 <1 1 <1 KS&PF Total Phosphorus mg/L 14/10/2013 0.1 0.12 0.12 0.12 KS&PF Total Nitrogen mg/L 14/10/2013 <0.1 <0.1 <0.1 0.1 KS&PF Ammonia-nitrogen mg/L 19/11/2013 0.1 0.08 0.08 0.08 KS&PF Chlorophyll-a mg/m 3 19/11/2013 <2 <2 <2 <2 KS&PF Total Phosphorus mg/L 19/11/2013 0.02 0.04 0.02 0.02 KS&PF Total Nitrogen mg/L 19/11/2013 0.8 1.2 1 1.3 KS&PF Ammonia-nitrogen mg/L 16/12/2013 0.1 0.1 0.02 0.09 KS&PF Chlorophyll-a mg/m 3 16/12/2013 <1 <1 <1 1 KS&PF Total Phosphorus mg/L 16/12/2013 0.04 0.02 0.23 0.03 KS&PF Total Nitrogen mg/L 16/12/2013 <0.1 <0.1 <0.1 1 KS&PF Ammonia-nitrogen mg/L 15/01/2014 0.1 0.09 0.08 0.1 KS&PF Chlorophyll-a mg/m 3 15/01/2014 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 15/01/2014 0.08 0.07 0.08 0.05 KS&PF Total Nitrogen mg/L 15/01/2014 1 1.1 0.9 0.2 KS&PF Ammonia-nitrogen mg/L 25/02/2014 0.16 0.17 0.04 0.11 KS&PF Chlorophyll-a mg/m 3 25/02/2014 2 2 1 2 KS&PF Total Phosphorus mg/L 25/02/2014 0.03 0.05 0.06 0.04 KS&PF Total Nitrogen mg/L 25/02/2014 0.2 1.7 1.1 1.9 KS&PF Ammonia-nitrogen mg/L 20/03/2014 0.12 0.09 0.08 0.08 KS&PF Chlorophyll-a mg/m 3 20/03/2014 3 2 <1 <1 KS&PF Total Phosphorus mg/L 20/03/2014 0.05 <0.01 0.03 0.06 KS&PF Total Nitrogen mg/L 20/03/2014 1.4 1.4 0.7 0.8 KS&PF Ammonia-nitrogen mg/L 8/04/2014 0.78 0.23 0.08 0.25 KS&PF Chlorophyll-a mg/m 3 8/04/2014 <1 5 3 1 KS&PF Total Phosphorus mg/L 8/04/2014 0.03 0.03 0.02 0.03 KS&PF Total Nitrogen mg/L 8/04/2014 1 1.2 0.5 1.8 KS&PF Ammonia-nitrogen mg/L 6/05/2014 0.05 0.05 0.07 0.09 KS&PF Chlorophyll-a mg/m 3 6/05/2014 <1 1 2 <1 KS&PF Total Phosphorus mg/L 6/05/2014 0.09 0.09 0.16 0.04 KS&PF Total Nitrogen mg/L 6/05/2014 1 2.3 1.2 0.4 KS&PF Ammonia-nitrogen mg/L 10/06/2014 0.09 0.19 0.11 0.2 KS&PF Chlorophyll-a mg/m 3 10/06/2014 <2 <2 <2 2 KS&PF Total Phosphorus mg/L 10/06/2014 0.07 0.09 0.08 0.06 KS&PF Total Nitrogen mg/L 10/06/2014 0.2 0.2 0.3 0.4 KS&PF Ammonia-nitrogen mg/L 7/07/2014 0.03 0.04 0.06 0.08 KS&PF Chlorophyll-a mg/m 3 7/07/2014 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 7/07/2014 0.04 0.03 0.04 0.04 KS&PF Total Nitrogen mg/L 7/07/2014 0.6 0.5 0.5 0.4 KS&PF Ammonia-nitrogen mg/L 26/08/2014 0.07 0.08 0.07 0.06 KS&PF Chlorophyll-a mg/m3 26/08/2014 <1 <1 <1 1 KS&PF Total Phosphorus mg/L 26/08/2014 <0.01 0.04 0.04 0.04 KS&PF Total Nitrogen mg/L 26/08/2014 0.5 0.3 0.4 0.4 KS&PF Ammonia-nitrogen mg/L 9/09/2014 0.1 0.08 0.08 0.08 KS&PF Chlorophyll-a mg/m3 9/09/2014 <1 <1 <1 <1 KS&PF Total Phosphorus mg/L 9/09/2014 0.05 0.04 0.04 0.08 KS&PF Total Nitrogen mg/L 9/09/2014 0.4 0.4 0.3 0.7 KS&PF Ammonia-nitrogen mg/L 22/10/2014 0.07 0.07 0.06 0.05 KS&PF Chlorophyll-a mg/m3 22/10/2014 1 <1 1 2 KS&PF Total Phosphorus mg/L 22/10/2014 0.15 0.16 0.13 0.14 KS&PF Total Nitrogen mg/L 22/10/2014 0.3 0.3 0.1 0.2 KS&PF Ammonia-nitrogen mg/L 25/11/2014 0.08 0.09 0.1 0.1 KS&PF Chlorophyll-a mg/m3 25/11/2014 2 <5 <5 <5 KS&PF Total Phosphorus mg/L 25/11/2014 0.24 0.32 0.22 0.19 KS&PF Total Nitrogen mg/L 25/11/2014 0.7 0.9 0.6 0.6 KS&PF Ammonia-nitrogen mg/L 3/12/2014 0.06 0.08 0.09 0.05 KS&PF Chlorophyll-a mg/m3 3/12/2014 2 1 2 1 KS&PF Total Phosphorus mg/L 3/12/2014 0.11 0.09 0.1 0.11 KS&PF Total Nitrogen mg/L 3/12/2014 0.1 0.5 0.4 0.4 KS&PF Printed on: 29/07/2016 Page 3 of 4 Analyte Units Date M1 M2 M3 M4 Comments Sampler (Control) Ammonia-nitrogen mg/L 5/01/2015 0.15 0.14 0.09 0.1 KS&PF Chlorophyll-a mg/m3 5/01/2015 1 2 1 1 KS&PF Total Phosphorus mg/L 5/01/2015 <0.02 <0.02 <0.02 <0.02 KS&PF Total Nitrogen mg/L 5/01/2015 <0.2 <0.2 <0.2 <0.2 KS&PF Ammonia-nitrogen mg/L 11/02/2015 0.08 0.09 0.09 0.08 KS&PF Chlorophyll-a mg/m3 11/02/2015 <1 <1 1 <1 KS&PF Total Phosphorus mg/L 11/02/2015 0.12 0.15 0.13 0.1 KS&PF Total Nitrogen mg/L 11/02/2015 <0.1 <0.1 0.1 0.4 KS&PF Commencement of AER 2015/16 Reporting period: Ammonia-nitrogen mg/L 4/03/2015 0.06 0.09 0.07 0.09 KS&PF Chlorophyll-a mg/m3 4/03/2015 1 2 1 2 KS&PF Total Phosphorus mg/L 4/03/2015 0.11 0.1 0.11 0.11 KS&PF Total Nitrogen mg/L 4/03/2015 0.7 0.6 0.3 0.6 KS&PF Ammonia-nitrogen mg/L 14/04/2015 0.07 0.11 0.06 0.07 KS&PF Chlorophyll-a mg/m3 14/04/2015 <1 <1 <1 1 KS&PF Total Phosphorus mg/L 14/04/2015 0.15 0.16 0.14 0.03 KS&PF Total Nitrogen mg/L 14/04/2015 <0.1 0.3 0.1 0.4 KS&PF Ammonia-nitrogen mg/L 12/05/2015 0.05 0.06 0.06 0.03 KS&PF Chlorophyll-a high compared to Donovans Chlorophyll-a mg/m3 12/05/2015 2 1 3 9 Bay, but not due to TVPS. KS&PF Total Phosphorus mg/L 12/05/2015 0.13 0.14 0.13 0.10 KS&PF Total Nitrogen mg/L 12/05/2015 0.2 <0.1 0.2 <0.1 KS&PF July 2015 to January 2016 - Eutrophication Monitoring suspended until the Mitcubishi unit is recommissioned. Eutrophication monitoring recommenced upon recommissioning of the Mitsubishi unit in February 2016. Ammonia-nitrogen mg/L 8/02/2016 0.06 0.09 0.09 0.05 KS Chlorophyll-a mg/m3 8/02/2016 <1 <1 2 <1 KS Total Phosphorus mg/L 8/02/2016 <0.01 <0.01 0.03 <0.01 KS Total Nitrogen mg/L 8/02/2016 0.7 0.5 0.7 1.1 KS Ammonia-nitrogen mg/L 4/03/2016 0.06 0.09 0.07 0.09 KS Chlorophyll-a mg/m3 4/03/2016 1 2 1 2 KS Total Phosphorus mg/L 4/03/2016 0.11 0.1 0.11 0.11 KS Total Nitrogen mg/L 4/03/2016 0.7 0.6 0.3 0.6 KS Ammonia-nitrogen mg/L 4/04/2016 0.05 0.06 0.04 0.7 KS Chlorophyll-a mg/m3 4/04/2016 2 1 <1 <1 KS Total Phosphorus mg/L 4/04/2016 <0.01 <0.01 0.05 <0.01 KS Total Nitrogen mg/L 4/04/2016 0.5 <0.2 0.8 1.2 KS LEGEND: Mitsubishi lay-up - No monitoring required. Printed on: 29/07/2016 Page 4 of 4 APPENDIX F2 – Near shore inline temperature monitoring results Appendix F2 Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Near Shore Ambient In-line Temperature Monitoring - AETV TVPS (AER Reporting period 1 April 2015 to 31 March 2016) Parameter Unit Date Inline WWRP meter 90 FLMV Water Quality Meter M1 M2 M3 M4 temp degrees C 14/04/2015 14.5 14.5 15.6 15.8 15.8 14.6 comments pH probe on rented meter was inoperable, so used calibrated AETV meter. Inline DO and pH readings are dissimilar to hand held unit results. Outfall probes : No results temp degrees C 12/05/2015 10.9 12.3 13.0 12.6 12.7 12.7 comments correlation of inline probes and hand-held probes is very poor; may be due to low flow, atmospheric conditions and spurious probe readings due to not being immersed. Outfall probes : 8.34 pH, 92.8 DO, 12.6 deg. C, 41.7 conductivity temp degrees C (June) 14/07/2015 10.5 7.9 comments Mitsubishi on lay-up - Near Shore monitoring put on hold until it resumes operation. Outfall probes : 8.03 pH, 93.25 DO, 10.6 deg. C, 44.1 conductivity temp degrees C (July) 4/08/2015 6.7 6.6 comments Mitsubishi on lay-up - Near Shore monitoring put on hold until it resumes operation. Outfall probes : 8.04 pH, 101.1 DO, 8.5 deg. C, 23.7 conductivity temp degrees C 26/08/2015 9.7 9.3 comments Mitsubishi on lay-up - Near Shore monitoring put on hold until it resumes operation. Outfall probes : 8.16 pH, 102.0 DO, 10.5 deg. C, 43.7 conductivity temp degrees C 15/09/2015 15.5 14.4 comments Mitsubishi on lay-up - Near Shore monitoring put on hold until it resumes operation. Outfall probes : 8.18 pH, 99.9 DO, 12.3 deg. C, 38.2 conductivity temp degrees C 29/10/2015 17.3 14.5 Mitsubishi on lay-up - Near Shore monitoring put on hold until it resumes operation. comments Very low discharge flow with all units offline. Query if need to monitor under such low discharge? Outfall probes : pH, DO, deg. C, conductivity temp degrees C Nov 2015 to Jan 2016 comments Due to low discharge while the Mitsubishi is on lay-up - Near Shore monitoring put on hold until it resumes operation. Outfall probes : 7.84 pH, 100.4 DO, 15.2 deg. C, 48.3 conductivity temp degrees C 8/02/2016 22.4 24.4 21.7 22.0 21.6 22.8 WWRP had sludge removed aand was cleaned out 15-18/10/2015. comments This is first sample since recommissioning Mitsubishi Unit 201 on 19/1/2016. Outfall probes : 9.06 pH, 84 DO, 21.63 deg. C, O/S conductivity temp degrees C (Mar) 4/04/2016 20.5 16.6 17.0 17.6 18.1 16.7 comments Coloured due to being on Curries River supply. Outfall probes : 8.02 pH, 94.7 DO, 18.6 deg. C, O/S conductivity LEGEND: Mitsubishi in standby mode (lay-up) - No cooling tower in operation, decreased WWRP discharge & no monitoring not undertaken. Printed on: 19/09/2016 Page 1 of 1 APPENDIX G – EPA letter titled ‘Request to vary biological monitoring requirements’ (EPA, Dated 19 May 2015) Appendix G Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) APPENDIX H – Quarterly Donovans Bay field and laboratory monitoring results Appendix H Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) AETV Quarterly Donovans Bay Water Quality Monitoring Field Results (AER 2015/16) Turb Sea floor Location Description Easting Northing Date Time Temp (ºC) Depth (m) pH Cond (µS) DO (sat) DO (mg/L) ORP (mV) Field Observations/Notes Level of Tide Explanation of Data (NTU) at …(m) Missing field sheet D1 1m above seafloor 0491710 5445720 04/06/15 D1 1m above seafloor 0491710 5445720 01/10/15 13.45 12.70 3.5 8.10 40952 95.5 10.19 52 1.56 3.5 Green High tide at 2pm D1 1m above seafloor 0491710 5445720 09/12/15 10.00 17.66 3.0 7.71 47006 101.4 7.75 558 0.71 3.0 Clear / green High tide D1 1m above seafloor 0491710 5445720 21/03/16 11.23 19.37 3.5 8.05 52090 95.1 7.01 293 0.69 3.5 Green, nil odour High tide Missing field data sheet D2 1m below surface 0491590 5445695 04/06/15 D2 1m below surface 0491590 5445695 01/10/15 14.00 12.70 3.7 8.18 41224 96.2 10.17 52 1.67 3.7 Green. Overcast & windy. High tide at 2pm D2 1m below surface 0491590 5445695 09/12/15 10.15 17.63 3.2 7.76 47587 102.0 7.76 5 0.55 3.2 Green High tide D2 1m below surface 0491590 5445695 21/03/16 11.43 19.29 3.2 8.06 51842 95.9 7.08 270 0.88 3.2 Green, nil odour High tide Missing field data sheet D2 1m above seafloor 0491590 5445695 04/06/15 D2 1m above seafloor 0491590 5445695 01/10/15 14.20 12.60 3.7 8.17 42449 95.8 10.12 50 0.87 3.7 Green. Overcast & windy. High tide at 2pm D2 1m above seafloor 0491590 5445695 09/12/15 10.30 17.63 3.2 7.73 48511 103.4 7.85 542 0.32 3.2 Green High tide D2 1m above seafloor 0491590 5445695 21/03/16 11.57 19.47 3.2 8.07 52244 96.8 7.12 306 0.82 3.2 Green, nil odour High tide Missing field data sheet D3 1m below surface 0492915 5444140 04/06/15 D3 1m below surface 0492915 5444140 01/10/15 14.45 12.60 3.2 8.21 41633 97.4 10.32 60 1.48 3.2 Green. Overcast & windy. High tide at 2pm D3 1m below surface 0492915 5444140 09/12/15 10.45 17.45 3.8 7.77 48395 102.5 7.78 344 0.41 3.8 Green High tide D3 1m below surface 0492915 5444140 21/03/16 12.13 19.41 2.8 8.06 51045 95.3 7.05 213 0.81 2.8 Green, nil odour High tide Missing field data sheet D3 1m above seafloor 0492915 5444140 04/06/15 D3 1m above seafloor 0492915 5444140 01/10/15 15.00 12.60 3.2 8.70 42041 96.6 10.27 58 0.94 3.2 Green High tide at 2 pm D3 1m above seafloor 0492915 5444140 09/12/15 11.00 17.41 3.8 7.98 48427 103.8 7.81 464 0.68 3.8 Green. Overcast & windy. High tide Not deep enough for sampling D3 1m above seafloor 0492915 5444140 21/03/16 Missing field data sheet D4 1m below surface 0491625 5443715 04/06/15 D4 1m below surface 0491625 5443715 01/10/15 15.15 12.60 3.7 8.21 41088 98.4 10.50 53 1.17 3.7 Green. Overcast & windy. High tide at 2pm D4 1m below surface 0491625 5443715 09/12/15 11.21 17.76 3.7 7.99 48254 104.1 7.87 558 1.58 3.7 Green High tide D4 1m below surface 0491625 5443715 21/03/16 12.31 19.46 3.2 8.07 51848 93.6 6.90 226 0.70 3.2 Green, nil odour High tide Missing field data sheet D4 1m above seafloor 0491625 5443715 04/06/15 D4 1m above seafloor 0491625 5443715 01/10/15 15.30 12.60 3.7 8.20 42449 98.4 10.50 51 0.65 3.7 Green. Overcast & windy. High tide at 2pm D4 1m above seafloor 0491625 5443715 09/12/15 11.35 17.68 3.7 8.01 48242 106.8 8.08 563 0.47 3.7 Green High tide D4 1m above seafloor 0491625 5443715 21/03/16 12.37 19.31 3.2 8.08 52027 93.9 6.93 271 0.74 3.2 Green, nil odour High tide Last Printed on: 19/09/2016 Page 1 of 1 AETV Quarterly Donovans Bay Water Quality Monitoring results (AER 2015/16) Site D1 - 1m below surface Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.06 0.04 0.03 0.03 Nitrite + Nitrate as N (mg/L) mg/L 0.06 <0.01 <0.01 0.06 Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.2 <0.01 0.8 1.2 Total nitrogen as N (mg/L) mg/L 0.3 <0.2 0.8 1.3 Total Phosphorus as P (mg/L) mg/L 0.06 <0.2 <0.01 0.01 Chlorophyll a (mg/m3) mg/m3 <1 2 1 <1 Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 <5 Site D1 - 1m above base (sampled for June 2010 only) Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.05 0.13 0.02 0.03 Nitrite + Nitrate as N (mg/L) mg/L 0.05 <0.01 <0.01 0.04 Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.4 <0.2 <0.01 0.9 Total nitrogen as N (mg/L) mg/L 0.4 <0.2 0.4 0.9 Total Phosphorus as P (mg/L) mg/L 0.08 <0.02 0.4 0.04 Chlorophyll a (mg/m3) mg/m3 <1 1 2 <1 Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 <5 Site D2 - 1m below surface Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.05 0.17 0.04 0.02 Nitrite + Nitrate as N (mg/L) mg/L 0.05 <0.01 <0.01 0.05 Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.5 <0.2 1.1 0.4 Total nitrogen as N (mg/L) mg/L 0.6 <0.2 1.1 0.4 Total Phosphorus as P (mg/L) mg/L 0.07 <0.02 0.12 0.07 Chlorophyll a (mg/m3) mg/m3 <1 1 2 <1 Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 <5 Site D2 - 1m above sea floor Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.06 0.13 0.02 0.04 Nitrite + Nitrate as N (mg/L) mg/L 0.06 <0.01 <0.01 0.03 Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.2 <0.01 0.7 1.1 Total nitrogen as N (mg/L) mg/L 0.3 0.3 0.7 1.1 Total Phosphorus as P (mg/L) mg/L 0.07 <0.02 <0.01 0.05 Chlorophyll a (mg/m3) mg/m3 <1 <1 2 <1 Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 <5 Site D3 - 1m below surface Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.08 0.13 0.02 0.03 Nitrite + Nitrate as N (mg/L) mg/L 0.06 <0.01 <0.01 0.06 Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.5 0.7 0.5 0.8 Total nitrogen as N (mg/L) mg/L 0.6 0.7 0.5 0.9 Total Phosphorus as P (mg/L) mg/L 0.05 0.02 <0.01 0.04 Chlorophyll a (mg/m3) mg/m3 <1 1 1 <1 Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 <5 Site D3 - 1m above sea floor Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.06 0.06 0.02 No sample Nitrite + Nitrate as N (mg/L) mg/L 0.05 <0.01 <0.01 No sample Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.4 0.2 0.8 No sample Total nitrogen as N (mg/L) mg/L 0.4 0.2 0.8 No sample Total Phosphorus as P (mg/L) mg/L 0.05 <0.02 0.11 No sample Chlorophyll a (mg/m3) mg/m3 <1 <1 2 No sample Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 No sample Site D4 - 1m below surface Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.07 0.05 0.02 0.03 Nitrite + Nitrate as N (mg/L) mg/L 0.06 <0.01 <0.01 0.11 Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.2 0.2 0.5 1 Total nitrogen as N (mg/L) mg/L 0.3 0.2 0.5 1.1 Total Phosphorus as P (mg/L) mg/L 0.06 <0.02 0.19 0.06 Chlorophyll a (mg/m3) mg/m3 <1 1 2 <1 Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 <5 Site D4 - 1m above sea floor Compound Unit 4-Jun-15 1-Oct-15 9-Dec-15 21-Mar-16 Ammonia as N (mg/L) mg/L 0.08 0.04 0.03 0.03 Nitrite + Nitrate as N (mg/L) mg/L 0.05 0.01 <0.01 0.04 Total Kjeldahl Nitrogen as N (TKN) (mg/L) mg/L 0.5 0.6 1.2 1 Total nitrogen as N (mg/L) mg/L 0.6 0.6 1.2 1 Total Phosphorus as P (mg/L) mg/L 0.06 0.03 0.18 0.07 Chlorophyll a (mg/m3) mg/m3 <1 1 2 <1 Total Trihalomethanes (THM) (ug/L) µg/L <5 - <5 <5 No sample - Indicates that the water depth was too shallow for a sample to be collected. Page 1 of 1 AETV Quarterly Donovans Bay Water Quality Monitoring Laboratory Results - Historical Trends Donovans Bay -1m Below Surface -Chlorophyll-a Donovans Bay -1m Below Surface -Ammonia (mg/L) Donovans Bay -1m Below Surface -Total Phosphorous (mg/L) 8 0.25 0.6 D1 D2 D3 D4 D1 D2 D3 D4 D1 D2 D3 D4 7 0.20 0.5 6 0.4 ) 3 5 0.15 4 0.3 0.10 3 Ammonia (mg/L) Ammonia Chlorophyll-a (mg/m Chlorophyll-a 0.2 Total Phosphorous (mg/L) Phosphorous Total 2 0.05 0.1 1 0.00 0 0 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 31-Aug-06 13-Jan-08 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 31-Aug-06 13-Jan-08 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 Date Date Date Donovans Bay -1m Below Surface -Total Phosphorus (mg/L) Donovans Bay -1m Above Sea Bed -Ammonia (mg/L) 0.6 Donovans Bay -1m Above Sea Bed - Chlorophyll-a 0.25 D1 D2 D3 D4 8 D1 D2 D3 D4 D1 D2 D3 D4 0.5 7 0.20 6 0.4 ) 3 5 0.15 0.3 4 0.10 3 Ammonia (mg/L) Ammonia 0.2 Chlorophyll-a (mg/m Chlorophyll-a Total Phosphorus (mg/L) Phosphorus Total 2 0.05 0.1 1 0 0.00 0 13-Jan-08 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 31-Aug-06 13-Jan-08 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 Date Date Date last Printed on: 19/09/2016 Page 1 of 2 Donovans Bay -1m Below Surface -Total Nitrogen (mg/L) Donovans Bay -1m Below Surface -Nitrate + Nitrate (mg/L) 1.4 0.3 D1 D2 D3 D4 D1 D2 D3 D4 1.2 0.25 1 0.2 0.8 0.15 0.6 0.1 0.4 Total Nitrogen (mg/L) Nitrogen Total Nitrite + Nitrate (mg/L) Nitrate + Nitrite 0.2 0.05 0 0 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 Date Date Donovans Bay -1m Above Sea Bed - Total Nitrogen (mg/L) Donovans Bay -1m Above Sea Bed - Nitrite + Nitrate (mg/L) 1.4 0.3 D1 D2 D3 D4 D1 D2 D3 D4 1.2 0.25 1 0.2 0.8 0.15 0.6 Total Nitrogen (mg/L) Nitrogen Total 0.1 0.4 (mg/L) Nitrate + Nitrite 0.2 0.05 0 0 13-Jan-08 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 13-Jan-08 27-May-09 9-Oct-10 21-Feb-12 5-Jul-13 17-Nov-14 31-Mar-16 Date Date last Printed on: 19/09/2016 Page 2 of 2 APPENDIX I – Emergency Response Plan (Rev 1.6 - AETV, 31 May 2016) Appendix I Project: 2946.002 – AER (2015 – 2016) FINAL (Signed) Tamar Valley Power Station Emergency Response Plan (EH&S Procedure) Proc-Site-A-EHS Emergency Response Plan Emergency map located page 19 Facility address: 4055 East Tamar Highway George Town TAS 7253 GPS Coordinates: 4922256E; 5445805N (MGA 94, Zone 55) Manifest Quantity Workplace Emergency situation DIAL: 000 Power Station Manager: Tony Ciffo Contact Numbers: 03 6380 2222 or 0439 885 039 Tamar Valley Power Station Control room: 03 6380 2240 Hydro Tasmania – Generation control: 03 6230 5690 General 03 6230 5569 Alternative Page 1 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 0 Draft SR 12/11/08 0.1 CWA 0.2 Dr Dell 30/09/09 0.3 CWA 12/12/09 1.0 A Ciffo 22/07/10 1.1 WP Audit actions CWA A C 13/03/012 1.2 Contacts Updated AC 1/08/12 1.3 General update CS KS,JF, CA AC 14/08/13 1.4 General Update CS AC 29/07/14 1.5 General Update AC 14/11/14 1.6 Update CS KS DQ TS AC 31/05/16 TN Rev Description Originator Reviewed Approved Date NOTE: Printed copies of this procedure may be out of date. Refer to Q Pulse to verify the correct version is being used. Hard copies of this document are uncontrolled. Page 2 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station TABLE OF CONTENTS TABLE OF CONTENTS 3 1 GLOSSARY AND ABBREVIATIONS 5 2 SCOPE 6 3 OBJECTIVES 6 3.1 Priorities 6 3.2 Emergency Management Locations 6 4 CONTACT NUMBERS 7 4.1 Critical First Response 7 4.2 Internal AETV Power 7 4.3 External 8 4.4 Secondary External Numbers 8 5 RAISING THE ALARM AND INITIAL RESPONSE 8 5.1 Raising the Alarm 8 5.2 Initial Response by Persons at scene of initial Incident 9 5.3 Evacuation Procedure 9 5.4 Communication Management 10 6 ALIGNMENT AND INTEGRATION WITH STAKEHOLDERS 10 6.1 Regulatory Authorities and Emergency Services 11 7 AETV POWER EMERGENCY ORGANISATION 12 8 ROLES & RESPONSIBILITIES 14 8.1 Prior to the Incident 14 8.2 During the Incident 14 8.2.1 After the Incident 16 9 FACILITY DESCRIPTION 18 Page 3 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 9.1 Dangerous Goods 18 9.1.1 Bulk Storage Tanks - Diesel 18 9.1.2 Other surface storage tanks 18 9.1.3 Other 18 10 EMERGENCY MAP 20 11 AVAILABLE RESOURCES 21 12 STATUTORY NOTIFICATION PROCEDURE 22 13 GUIDELINES FOR DEALING WITH THE MEDIA AND COMMUNITY ENQUIRIES 23 14 DECLARATION REGARDING END OF INCIDENT 24 15 DEBRIEF 25 16 EMERGENCY DRILLS AND EXERCISES 26 16.1 Weekly Alarm Testing 26 16.2 Emergency Exercises 26 17 REVIEW 27 Page 4 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 1 Glossary and Abbreviations Abbreviation / Term Definition AAC Assembly Area Controller AETV Pty Ltd Fully owned subsidiary of Hydro Tasmania Assembly Area A designated and sign posted safe place where personnel assemble in the event of an emergency CEO Chief Executive Officer FAC Forward Area Controller SDS Safety Data Sheet GM General Manager PSM Power Station Manager SEC Site Emergency Co-ordinator TVPS Tamar Valley Power Station CCR Central Control Room OMT Operator Maintainer Technician BBPS Bell Bay Power Station BBEP Bell Bay Energy Precinct includes TNGP, TasNetworks & TVPS Page 5 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 2 Scope This Emergency Plan is applicable to the Tamar Valley Power Station and Bell Bay Power Stations. It is to be recognised that this is only a plan and not a prescriptive document. Each incident is a unique event; therefore, this plan is designed to provide guidance on responding to an emergency event. 3 Objectives This plan is designed to manage emergencies and minimise the related hazards to employees, contractors, members of the public and the environment. Emergencies addressed by this plan may occur within the Tamar Valley Power Station (TVPS) and Bell Bay Power Stations (BBPS) which are located within the Bell Bay Energy Precinct (BBEP). Such emergencies may involve regional or State emergencies which threaten or impact any of the facilities in the BBEP. 3.1 Priorities AETV Power’s priorities will be determined as follows: • Is there any threat to human safety present? • Is there any threat to the community or the environment? • Is there any risk to production? • Is there any risk to plant? 3.2 Emergency Management Locations All emergency management for Tamar Valley Power Station & Bell Bay Power Stations occurs from the Tamar Valley Power Station Central Control Room. Page 6 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 4 Contact Numbers The most up to date list of contact numbers is maintained in a separate document referred to as Tamar Valley Power Station Contacts Directory and Telephone listing. The following numbers are only reviewed annually and may be out of date. They have been included should a printed version of this document be the only reference available during an emergency. 4.1 Critical First Response Position Name Contact Number Emergency Services Police, Fire, Ambulance 000 Gas Control Emergency Contact Number 1800 195 666 (TNGP Pipeline Operator) (Pipeline Operations) (1300 557 505) Emergency Contact Number 02 8884 5146 AEMO or (alternate) (07 3347 3153) Hydro Tasmania Control Generation Control 03 62 30 5569 TasNetworks Control Transmission Control (HV) (03) 6274 3704 Distribution Control (LV) (03) 6274 3711 4.2 Internal AETV Power Position Name Contact Number Power Station Manager Tony Ciffo 03 6380 2222 0439 885 039 Production Manager Chris Ashley 03 6382 2222 0439 885 031 Instrument Technician Gene Wells 03 6380 2222 0439 885 038 Technical Manager Tony Szabo 03 6380 2222 0439 898 459 CEO (Chief Technical and Evangelista Albertini 03 62 30 5895 Operations Officer Hydro) Chairman (CEO Hydro Tas) Stephen Davey 03 62 30 5200 TVPS control room Operator 03 63 802 240 Hydro Media Representative Ian Colvin 0417 576 378 Manager TVPS & BSI Brad Turner 0409 172 549 Page 7 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 4.3 External Position Contact Number Tasports Bell Bay 03 6380 3111 03 6380 3175 AH Environmental Systems and Contracting (Oil 03 6442 4892 and chemical spill equipment) 0418 174 709 Veolia Environmental services 03 6332 6500 WorkSafe Tasmania 1300 366 322 Environmental Protection Authority (EPA) 1800 005 171 George Town Council 03 6382 8800 4.4 Secondary External Numbers Please note the first response must be to the 000 Fire, Police, Ambulance number and these should be used as secondary external numbers, once the initial response has been raised. Tasmanian Fire Service (Fire Comm) 03 6230 8420 Tasmanian Police – General 03 6336 3701 State Emergency Service 03 6336 3790 Director of Gas Safety 03 6477 7150 (Andrew Ayton) 0438 381 712 Gas Specialist (WST) (Ralph Thomson) (03) 6777 2848 0408 004 814 Palisade (gas pipeline owner) 03 95223308 Worksafe Inspector 03 6336 2236 Aurora District Operations 03 6237 3115 Transend Control Room 03 62 743705 5 Raising the Alarm and Initial Response 5.1 Raising the Alarm Raising the Alarm at Tamar Valley Power Station can be achieved manually by the following methods: • Dialling 333 on any site telephone will put you in contact with the Duty Operator in the control room. Communicate details of incident/emergency, location, persons injured, nature of emergency to the Duty Operator. After determining the nature of the Incident the Duty Operator can determine if an evacuation is required and activate the site wide emergency evacuation alarm. Subsequent Page 8 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station calls regarding the emergency should be via Control Room internal phone number 2240 or external 6380 2240 • Contact the Operator in Control Room via mobile phone 0438 355 547 or 2- way radio . DO NOT USE A MOBILE PHONE IN THE AREA OF A SUSPECTED GAS LEAK OR IN A BATTERY ROOM • Activating siren on North wall of the Control Room • If at Bell Bay Power Station Each work party must carry a station radio. Raise Central Control Room on the radio or phone 6380 2240 5.2 Initial Response by Persons at scene of initial Incident • Raise the Alarm by any of the above methods • Make the area safe, if possible. • Assist any injured persons and await further instructions from the Control Room or if unsafe, proceed to your nearest designated emergency evacuation assembly area. All subsequent contact with control room should be via Control Room Operations Radio, internal phone number 2240 or external 6380 2240 5.3 Evacuation Procedure • On hearing the alarm, immediately stop work and make the work area safe • Exit buildings/work area, using closest exits, looking for hazards • Personnel evacuating site must proceed to the nearest emergency evacuation assembly area and swipe access card at reader and await instruction from the Assembly Area Coordinator. Evacuation assembly area No 1 is situated on the Tamar Highway side of the administration building and Evacuation assembly area No 2 is on the North Road opposite the FT8 site entrance gates. • Production personnel and Office Manager must proceed to the Control Room remaining in radio contact. • All other site personnel (including AETV Plant Performance) must report to the nearest evacuation assembly area. • Emergency Evacuation assembly areas, the most senior person at each location should assume the role of Assembly Area Coordinator for that group and contact the Control Room using the fixed 2-way radio station located at each of the assembly areas or on 6380 2240 and advise of exact location and identity of persons assembled and await further instructions. • Remain within listening distance of the 2 way radio as the radio network is the primary communications tool. Avoid using mobile phones as the system can become congested and / or tie up land line. • Follow instructions given by the Assembly Area Coordinator • If access to the nearest evacuation assembly area is impaired by a hazardous situation, i.e. gas leak or chemical spill, persons should assemble at the alternate evacuation assembly area. If the location of the chemical or gas leak is known observe the wind sock and move up wind, away from the Incident Site. • If circumstances prevent persons physically assembling in either one of the two designated assembly areas, the most senior person at each location should assume the role of Assembly Area Coordinator (AAC) for that group. The AAC Page 9 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station contacts the Control Room using the fixed 2-way radio if one present or on 6380 2240 and advise of exact location and identity of persons assembled and await further instructions. • Remain within listening distance of the 2 way radio as the radio network is the primary communications tool. • Follow instructions given by the Assembly Area Coordinator 5.4 Communication Management The most pressing issue early in the emergency is ensuring communication channels are open and managed. All persons involved are reminded that; • 2-Way radios are the primary tool for communicating onsite during an emergency. Radios allow a wide range of people to be immediately made aware of the evolving situation. • The use of mobile phones is secondary as many minutes may be lost finding and dialling then informing each individual in turn rather than multiple people. • All communication with external parties needs to go through the Site Emergency Co- Ordinator (SEC). Individuals calling ambulances or fire services will just add confusion to both the emergency management on site and the emergency services trying to respond. They may not realise that the separate calls are related to the same incident. • Only report facts and be aware that 2 way radios are open channels so avoid identifying casualties by name. 6 Alignment and integration with Stakeholders This Plan describes AETV Power’s arrangements for emergency response management at the Tamar Valley Power Station, the potential hazards associated with the power generation industry, the roles required to combat incidents, major emergencies and crises, emergency response and the processes to prevent or mitigate emergencies. The plan is designed to work in conjunction with and to interface with various Emergency Plans of the other organisations operating in the Bell Bay Energy Generation and Supply Precinct. This plan is also supported by Hydro’s Emergency Reponses Plans, associated arrangements and resources. These plans include: • Assets and Infrastructure (A&I - division of Hydro Tasmania) Emergency Management Plan; and • Hydro Tasmania Crisis and Emergency Management Plan. The Owner’s Emergency Response Plans will be implemented depending on the nature of the emergency event. Below provides guidance: Page 10 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station This Plan Implemented when: • Outside normal safe operating conditions; • Can cause harm to, or has caused harm to, people (including the public), environment or AETV Power assets, and business reputation; • Requires immediate or timely response; and • There is any emergency onsite regardless of whether it can or cannot be controlled by local resources. Assets and Infrastructure Emergency Management Plan Implemented when: • Outside normal safe operating conditions; • Can cause harm to, or has caused harm to, people (including the public), environment or AETV Power assets, and business reputation; • Requires immediate or timely response; and • Cannot be controlled by local resources; and • Can be controlled by A&I Emergency Management Plan Crisis and Emergency Management Plan Implemented when: • Outside normal safe operating conditions; • Can cause harm to, or has caused harm to, people (including the public), environment or AETV Power assets, and business reputation; • Requires immediate or timely response; and • Cannot be controlled by local resources; and • Cannot be controlled by A&I Emergency Management Plan; and • Requires the support of the Owner via the activation of the HT Crisis and Emergency Management Plan. This Plan is also consistent with and guided by: • The Australian Emergency Manual; and • Tasmanian Emergency Management Plan which documents the coordination arrangements for the management of major emergencies and disasters in Tasmania. In addition, the Plan conforms to the emergency management requirements of the Tasmanian Electricity Industry Emergency Management Planning Guide, the Tasmanian Gas Supply Emergency Coordination Plan and the Tasmanian Office of the Economic Regulator. 6.1 Regulatory Authorities and Emergency Services On matters relating to emergency response, AETV Power will: • Maintain a high level of consultation with regulatory agencies • Maintain procedures for notifying the relevant regulators • Meet the requirements of various operating licences and Australian Standards • Maintain and review contact lists including contacts with the regulatory authorities and emergency services; Page 11 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station • Comply with, interface and coordinate AETV Powers emergency response requirements with the requirements of emergency services in control at an emergency site. 7 AETV Power Emergency Organisation CHIEF TECHNICAL AND OPERATIONS OFFICER In the event on an emergency, initial response staffing will be provided by on-shift AETV Power personnel. This may well consist of only 2 persons with initial back up from the emergency services ,secondary backup be site personnel called as required. The AETV emergency response is led by the Site Emergency Co-ordinator (SEC) . This role will be initially the most senior operator on-shift in the Control Room. For more extreme emergency situations the Site Emergency Co-ordinator could interchange with an external emergency service, for example the Tasmanian Fire Service. Due to the variances in on-shift personnel availability, this Emergency Response Plan must rely on support from State Emergency Services and agencies. These external expert teams provide the physical response to the emergency and implement the strategies and tactics as agreed by the Site Emergency Co-ordinator. The Forward Area Controller (FAC) will be nominated by the Site Emergency Co-ordinator. This will be the person dispatched to the incident site. The FAC manages personnel, resources and information flow at the incident location. The Assembly Area Controller(s) (AAC) is the most senior AETV Power employee present at the assembly. The AAC manages personnel, resources and information flow at the Emergency Assembly Area. The First Aid Team is appointed under the direction of the SEC. Page 12 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station The Log Keeper will maintain a log of all key communications and provide support to the SEC as required. Power Station Manager will ensure that all appropriate management actions are being taken during the emergency, the emergency is being handled appropriately in accordance with this Plan and the operating and unaffected plant remains effectively controlled. Hydro Tasmania’s Chief Technical and Operations Officer is responsible for keeping stakeholders including the CEO and third parties informed regarding the emergency, as appropriate. Detailed response and guidance Checklists for the various incident scenarios and for each member of the Tamar Valley Power Station Emergency response Organisation are held in the Central Control Room. Page 13 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 8 Roles & Responsibilities 8.1 Prior to the Incident Note – boxes □ can be used as tick sheet if necessary The Power Station Manager is responsible for: ß Maintaining and updating these Emergency Procedures; ß Maintaining the personnel training plan; ß Maintaining the equipment and resources for incident combat; ß Periodic auditing and testing of these Emergency Procedures; ß Ensuring personnel are available, on a rostered basis, for any out of hours incident; ß Function testing and operational checks on all detection systems. All Station personnel are responsible for: ß Completing visual inspections of plant as required by the station condition-monitoring schedule; ß Being available out of hours on a rostered basis in case of an incident; ß Maintaining a visual surveillance during working hours for potential incidents; ß Reporting any work or activity, which may compromise the effectiveness of protection systems to the duty operator, as it occurs. ß Familiarising themselves with this Plan and understanding their role and responsibilities in an emergency. ß Every person must register site attendance by utilising the swipe card facility. The Duty Operator is responsible for: ß Ensuring awareness of the status of the station’s protection system at all times. All Personnel and Visitors responsible for: ß Reporting incidents and emergency situations immediately by contacting the Control Room 8.2 During the Incident All Production Personnel ß Report to the Control Room All Other persons including Plant Performance, Contractors & Visitors ß Report to Emergency Assembly Area (visitors must have received brief site induction and be under supervision of there sponsor) Office Manager ß Report to the Control Room Power Station Manager ß Ensures that appropriate emergency response actions are taking place Page 14 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station ß Ensures effective control of the operating or unaffected plant operations is taking place ß May take over the function of Site Emergency Co-Ordinator (SEC) leaving the Duty Operator in control of the operating plant, or may designate another suitable person to act as SEC ß Plan for rostering personnel to the various roles in the event of a protracted emergency ß Keep the Chief Operations Officer (or delegate) informed and participate in the development of appropriate media statements if required Site Emergency Co-ordinator ß Wear the red safety vest and red helmet provided for recognition (located in the Control Room Emergency Response bin) ß Control the Emergency from the Control Room or if this is not possible, from the primary evacuation assembly area ß Assess the incident/emergency and define emergency Alert Level in accordance with the Alert Levels given in Section 3. ß Appoint a Forward Area Controller to monitor the incident site ß Appoint a Log Keeper and ensure a documented log of events and actions is maintained ß Ensure First Aiders are assigned and first aid is administered for injured persons where possible. ß If manpower is available appoint a suitably trained resource as a Fire Systems Monitor to be located at the applicable fire suppression station, but only if safe to do so. ß Notify the Power Station Manager. ß Contact external emergency services. ß Communicate with Forward Area Controller/Assembly Area Controllers. ß Confirm action plan with the unassigned operators. ß Notify external agencies as per Statutory Incident Reporting Procedure. Forward Area Controller ß Wear the red safety vest and red helmet provided for recognition (located in the control room Emergency Response bin); ß Liaise with Site Emergency Co-ordinator: ß Evaluate the extent of the emergency; ß Evaluate casualty numbers; ß Liaise with the emergency services; ß Isolate equipment where possible; ß Ensure safety of personnel at site. Assembly Area Controller/s ß Wear the red safety vest and red helmet provided for recognition (stored in control room emergency bin) ß Ensure communication equipment is available and serviceable; ß Account for station personnel at the evacuation assembly area ß Maintain communication with Site Emergency Co-ordinator; ß Liaise with the Site Emergency Co-ordinator re personnel at Assembly Area; ß Record all movements in/out of station; ß Keep site secure; ß Ensure safety of personnel; ß Direct Emergency Services to emergency site. Page 15 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station Site Security Officer ß Print a copy of the evacuation list within 10 minutes of the start of the evacuation and thereafter as required by the Site Emergency Co-ordinator ß Maintain a log of personnel entering and leaving the site during the emergency ß Remain in communication with the Site Emergency Co-ordinator ß Direct the Emergency Services to the control room or to the site of the emergency if directed to do so by the Site Emergency Co-ordinator All Non-Production personnel ß Take immediate action to raise alarm and evacuate station as necessary in accordance with the evacuation directions given by the Site Emergency Co-ordinator, taking care to avoid further danger/damage to personnel or equipment, eg. fire, acid, caustic, etc.. ß Report to Assembly Area Controller and remain in communication with Control Room as far as practical. Assist with incident combat and clean up in cooperation with the Site Emergency Co-ordinator. Log Keeper ß Ensure all incoming and out going calls are recorded noting who made or received call, summary of conversation and time. ß Record notable events, reports and instructions including times. ß Assist in manning telephone and communicating information to external parties. The First Aid Personnel ß Liaise with Site Emergency Co-ordinator ß Provide First Aid to casualties Fire Systems Monitor ß Stand by the applicable fire suppression system (pumps, CO2, Water Mist) in the event of a fire emergency if safe to do so. ß Confirm that the system is operational and remain so as required ß Manually intervene to activate or restart as required. All other personnel and visitors ß Evacuate to the designated Assembly Area as directed by the Site Emergency Co- ordinator. Swipe access card to acknowledge arrival at assembly area. ß Remain at the Assembly Area until the all clear is given or instructed to relocate by the Site Emergency Co-ordinator or the Assembly Area Controller. Swipe access card to depart assembly area after emergency is declared over. 8.2.1 After the Incident Station Personnel will: ß Provide details for incident report; ß Participate in debrief. The Power Station Manager will: ß Ensure all materials and resources used during the incident are replenished and/or paid for; ß Conduct debrief as soon as possible; ß Ensure all reports are complete; ß Manage the incident recovery and site rehabilitation ß Coordinate Station recommissioning. Page 16 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station ß Ensure the Emergency Plan, Site Contact Lists and Check Lists remain current Page 17 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 9 Facility description TVPS is located 40 minutes north of Launceston and 10 minutes south of George Town, in Northern Tasmania. Access to the facility is restricted and controlled by either security personnel or site personnel. The facility has a secure permitter fence with numerous vehicular access points. The TVPS facility comprises: ß A base load Combined Cycle unit (203MW) - a Mitsubishi M701DA gas turbine and a SC1F-35.4 steam turbine ß A 58 MW Rolls Royce Trent 60 open cycle unit ß Three 40 MW, Pratt & Whitney FT8 Twin Pac Units – dual fuel ß Cooling tower ß Administration facility ß Security gate house ß First aid room ß Several chemical storage areas ß Two water treatment plants ß 2 workshops/storage areas ß Three switchyards ß Waste water retention pond ß Several laydown areas ß Sealed internal road network ß Water storage tanks for fire and process water ß Two bunded diesel tanks totally 500,000L capacity ß Gas reticulation network ß Water reticulation network ß Back-up generator supply The emergency map shown in Section 10 of this Plan highlights some of the key features of the facility. 9.1 Dangerous Goods Tamar Valley Power Station, due to the gas supply and large holding capacity of Diesel fuel, is classified as a MQW - Manifest Quantity Workplace under Work Health, Safety Act and Regulations 2012. The station was previously registered as Large Dangerous Substances under previous legislation – Dangerous Substances (Safe Handling) Act 2005. 9.1.1 Bulk Storage Tanks - Diesel Two 250,000 Litre surface storage tanks exist to provide diesel to the dual fuel FT8 units. The tanks are fully bunded. 9.1.2 Other surface storage tanks Various substances are stored across the site in up to 10,000 L containers (shown as chemical storage areas on the map in Section 10). All containers are clearly labelled and bunded. 9.1.3 Other Minor quantities ranging from 1000L down to 205L or less of other Hazardous Substances and Dangerous Goods are located in the chemical storage areas shown on the map in section 10. Page 18 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station These include hydrocarbons, substances used in the water treatment plant and various other substances used in day to day management of the facility. Flammable goods are kept in flammable goods cabinets. Storage of chemicals is in accordance with Safety Data Sheets, including maintaining minimum separation distances. A Chemical Manifest is available in hard copy and also available online. Page 19 of 27 10 Emergency map Page 20 of 27 11 Available Resources Item Location (see map) Barriers Various (see list) Workshop (mechanical) Barrier Tape Red/White Control Room Emergency Response bin Confined Space Entry Fan Workshop (mechanical) Emergency Lighting/Compressors Coates Hire (6326 6686) First Aid Kit Security Gatehouse First Aid Kit Central Control Room First Aid Kit Chemical Laboratory First Aid Kit Workshop (mechanical) First Aid Kit, Stretchers, Oxygen and other general First Aid Room equipment Defibrillator Central Control Room Defibrillator ACH101 switching PPE cabinet Defibrillator Central Control Package switching PPE cabinet Full Body Harness (s) Workshop (mechanical) Hand Tools Workshop (mechanical) Low Voltage Electrical Rescue Kit ACH 101, 102, 103, 104 MCC Low Voltage Electrical Rescue Kit CCR, 201 MCC , Battery rooms, CCP Low Voltage Electrical Rescue Kit WTP, CW, MCC Low Voltage Electrical Rescue Kit Control Room Minor Oil Spill Kit Unit 101 Minor Oil Spill Kit Unit 102 Minor Oil Spill Kit Unit 103 Minor Oil Spill Kit Workshop (mechanical) Minor Acid / Alkali Spill Kit Water Treatment Plant Minor Acid / Alkali Spill Kit Workshop (mechanical) Portable Lighting Workshop (mechanical) Portable Pumps Coates Hire/Workshop Safety Signs (portable) (see list) Workshop (mechanical) Suction Truck Veolia 03 6332 6500 Oil Recovery Hagen Oil 63 344664 SF6 Spill Kit Workshop (Electrical) Various Automatic Deluge Systems All GT Enclosures Fire Hoses Various Locations Hydrants Various Locations Page 21 of 27 12 Statutory Notification Procedure See Statutory Reporting Requirements Procedure. Except below A written log, including the time, date and persons contacted, for any communications made with the required Statutory Authorities listed in the above procedure must be made. This is the responsibility of the Power Station Manager, or in the Power Station Manager’s absence, the Production Co-ordinator or Duty Operator. Page 22 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 13 Guidelines for Dealing with the Media and Community Enquiries Statements to the media, members of the public and other third parties are the responsibility of the CEO (or delegate), in conjunction with the Power Station Manager. Due to the nature of power station and pipeline emergencies, employees may be approached for information by reporters preparing stories about the event. Employees should avoid making any comments to the media or reporters and refer all such requests to the Power Station Manager AETV Power response to media inquiries should be guided by the following principles: In the event that an emergency situation arises that generates media inquiries, the primary responsibility for communicating information, both internally and externally, resides with CEO (or delegate), in cooperation with Power Station Manager through the media liaison provided by Hydro’s Brand & Communication sections. At the scene of an emergency or otherwise, media or community inquiries should be directed to the Power Station Manager The CEO may appoint a media-trained member of staff to respond where on-camera, on-site interviews are required. Agreed messages will be developed to guide the appointed member of staff. In some instances, it may take the approved manager or trained spokesperson some time to reach the incident site. In this case, the Power Station Manager may provide agreed information to media. All radio and print enquiries should be handled by the Power Station Manager. Reporters generally are not familiar with power station operations or the safety precautions to be taken at AETV Power but they are skilled at gathering information from a variety of sources. Competition among news media is strong, and that competition often leads the media [especially "live" media such as radio and television] to attempt to be first with a developing news story such as an incident. The Power Station Manager may have to manage the media at the site. Page 23 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 14 Declaration regarding end of Incident The SEC, in consultation with PSM (and emergency services), will determine and declare when the emergency has ceased. This decision will be based on a risk review of the current situation. Post incident actions will be developed to ensure the recovery phase is initiated and that any equipment is returned to service in a safe manner. For clean-up and disposal, see TVPS - Waste Management Procedure Page 24 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 15 Debrief At the first opportunity all involved personnel should participate in a debriefing session chaired by the Power Station Manager and focuses on capturing as much information as practicable about the emergency event or situation from as many participants as possible. This will assist in the following: The cause; Prevention of a similar or repeat incident; Evaluation of procedures, plans and guidelines. The incident must be investigated and fully documented in accordance with AETV Power’s Incident Investigation Procedure. Page 25 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 16 Emergency Drills and Exercises 16.1 Weekly Alarm Testing The audible alarm will be tested at least once a week. This test will be conducted at 8:00 hrs each Monday morning excluding public holidays. Power Station Manager is responsible for ensuring the alarm is sounded so as to familiarise all personnel with the emergency alarms. The evacuation procedure shall be tested at least every three months at the discretion of the Power Station Manager, in co-ordination with the Production Co-ordinator to ensure that all personnel are familiar with the evacuation procedure. Any person failing to respond to an evacuation alarm during testing will be in breach of company procedures and appropriate disciplinary action will apply. 16.2 Emergency Exercises Emergency Evacuation shall be conducted twice yearly. Emergency exercises will be conducted annually, alternating between a full field exercise in one year and a desktop exercise the next. The emergency exercises shall be planned to simulate different credible scenarios so as to maximise the level of emergency training. The occurrence of one or more real site emergencies during the year and the accompanying debrief may be deemed adequate to replace the fully mobilised exercise, depending on the extent of the event. Any such substitution will be agreed between the EH&S Committee and Power Station Manager. Exercises will endeavour to keep up familiarity with use of Fire Fighting Equipment and First Aid kits etc. External emergency services or agencies and other Precinct organisations may be included in the two-yearly field exercise with prior arrangement only. Emergency exercises shall be documented in a report describing the scenario, the response, observers’ comments, log of events, along with lessons learnt, and actions arising. A list of all rostered personnel shall be included in the emergency exercise report as emergency training records. Page 26 of 27 Integrated Management System Emergency Response Plan Tamar Valley Power Station 17 Review This Plan is reviewed annually, at a minimum, but may be reviewed at any time. The last approved Plan will be followed. Page 27 of 27