Sydney Water Operational Audit 2011/2 - IPART - NSW Government

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Clause Requirement Grade Reason Audit Questions Evidence Cited Audit Observations CCPs – as per Aquality review assessed. Look at trends daily and notify any concerns. The instigate site review. Rechlorination Plant Monthly Report Aug 2012. Chlorine analyser – maintenance records. Internal maintenance of chlorine analysers. Some done by MED. All viewed onsite. Rechlorination SOP. Analysers database. V6 – 050612 QA unknown. Maintenance via Maximo Work Orders. Current pdf of orders. Meetings held Wednesday with Maintenance – Transfield. Go through them all for close out etc. Monthly meeting also held for higher level review. Test Sheets. Pdf. Mainbar Reservoir – Any docs associated with mitigation of a concern zone: Example provided. Control charts and internal reporting targets. Chronic. National Park end of system. Weekenders etc. Issues with FRC up. Ranking tool applied. Applied a case to install a mixer. Chlorine tablet dosed. Solar bee mixer installed. Emails trail. Nitrifying system. Evaluated solar bee done. Control chart viewed during audit has seen an increase in FRC. From 0.2 to 0.6 and 1.6 mg/L. Dated 4 Oct 2012. Could now breakpoint chlorination if wanted. Held workshop to rank. WQ reviews done on regular basis. For Woronora do frequently. Six weekly. As per example before. Rechlorination plants process and equipment workflow. SOP. RE 5320. Issue 5. 1 April 2011. This is a workflow SOP, which shows the tasks to be completed on a routine site visit to each Rechlorination Plant be it Drinking Water or Recycled Water. Rechlorination Plants ICATS. SOP. WT 5201. Issue 5. Date 19 June 2012. This SOP assists in the allocation of resources to service drinking water and recycled water Rechlorination Plants on a day-to-day basis. Rechlorination plant failures are detrimental to the secondary disinfection within the water network. The performance of each Rechlorination plant is reported monthly ICATS Daily Rechlorination Plant Performance and Routine Plant Monitoring. Xls file. Dated October 2012. Lists each reservoir, date, chlorine range, chlorine residual, alarms, comments and PO notification. 42 | GHD | Report for Independent Pricing and Regulatory Tribunal - Operational Audit of Sydney Water Corporation, 23/14602
Clause Requirement Grade Reason Audit Questions Evidence Cited Audit Observations Analysers database V6 050612. Xls file. Lists delivery system, analyser assets, calibration requests, analyte and responsibility for calibration. Chlorine analyser – maintenance records – latest version. Xls file. Shows online ph, turbidity analysers – maintenance activities. Such as probe changes, membrane / electrolyte changes. Chlorine analysers CPo2Aug1213.. Xls file. Shows the chlorine analysers compliance performance summary. Field Form for calibration of W&T membrane type chlorine analysers. RE 5031.01. Viewed 16 and 17/8 noted records. b Sydney Water must prepare, to the satisfaction of NSW Health, a Five Year Drinking Water Quality Management Plan covering the entire five year term of the Licence. The Five Year Drinking Water Quality Management Plan must be in operation by 31 December 2010 and include strategies for the comprehensive management of the quality of Drinking Water in Sydney Water’s water supply system in accordance with the Australian Drinking Water Guidelines (unless NSW Health specifies otherwise). Full As above, plus the following. Have any new reticulated areas been added or removed to the Plan since the previous audit period? If so, specify and describe how these were managed for incorporation and implementation. Drinking Water Quality Management Plan. Associated significant policies, procedures and relevant registers and documents of the DWQMP for Elements 1, 2, 3 and 9. Drinking Water Quality.pdf, Folio of Progress, 30 June 2012 NSW Health has endorsed the Five-year Drinking Water Quality Management Plan 2010 – 2015 (DWQMP). It includes Sydney Water’s strategies for managing drinking water quality 2010 – 2015 and is prepared in accordance with the ADWG 2004. Sydney Water, in consultation with NSW Health, started adopting the new ADWG 2011 in the 2011-12 Financial Year with full implementation by 1 July 2012. Details of the changes have been documented in the 2011-12 Annual Report on the Implementation of the Five Year Drinking Water Quality Management Plan. WPIMS5152 Five Year Drinking Water Quality management Plan 2010- 2015 Prepared and submitted in accordance with Reporting Manual and Operating Licence requirements. The primary objectives of this Five-year Drinking Water Quality Management Plan are: • to set the strategic direction for Sydney Water to manage drinking water quality in its drinking water systems • to document the strategies for managing drinking water quality under the 12-element structure of the Australian Drinking Water Guidelines (ADWG) • to fulfil the obligations of clause 2.1 of Sydney Water's Operating Licence. GHD | Report for Independent Pricing and Regulatory Tribunal - Operational Audit of Sydney Water Corporation, 23/14602 | 43
Page 1:
Independent Pricing and Regulatory
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© Independent Pricing and Regulato
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Executive Summary Executive Summary
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1 Introduction and scope 1 Introduc
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1 Introduction and scope Under our
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2 Overview of audit findings and re
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2 Overview of audit findings and re
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3 Progress on 2010/11 audit recomme
Page 19: A Operational Audit Report 2011/12
Page 23 and 24: Executive summary Introduction GHD
Page 25 and 26: Compliance Against Audited Licence
Page 27: Figure index Figure 1 Sydney Water'
Page 30 and 31: 1. Introduction 1.1 Sydney Water Co
Page 32 and 33: 1.5 Audit Methodology The operation
Page 34 and 35: 2. Water Quality - Part 2 2.1 Summa
Page 36 and 37: Information provided by Sydney Wate
Page 38 and 39: In particular, routine verification
Page 40 and 41: 3. Infrastructure Performance - Par
Page 42 and 43: Unexpected claims for additional wo
Page 44 and 45: maintenance request developed. This
Page 46 and 47: 3.6.2 Opportunities for Improvement
Page 48 and 49: Up until the two most recent years,
Page 50 and 51: OFI 7.4 IPART should note that any
Page 52 and 53: Appendix A - Glossary and Dictionar
Page 54 and 55: Abbreviation/Acronym ISO IT JOG kL
Page 56 and 57: Clause Requirement Grade Reason a S
Page 58 and 59: Clause Requirement Grade Reason Aud
Page 84 and 85: Appendix C - Water Quality Detailed
Page 86 and 87: Clause Requirement Grade and Reason
Page 94 and 95: Appendix D - Water Quality Detailed
Page 96 and 97: Appendix E - Infrastructure Perform
Page 108 and 109: Appendix F - Water Conservation Det
Page 118 and 119: Appendix G - Audit Methodology GHD
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Audit Methodology The methodology a
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Licence Clause Operating Licence Ob
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Drinking Water Quality Interview Pe
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Appendix J - SWC Document Received
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Document Reference Number Document
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GHD 16 Marcus Clarke St Canberra AC
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B Sydney Water’s Statement of Com
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Operating Licence 2010-2015 Complia
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1 Introduction This report has been
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In 2011-12, 572 properties experien
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2.2.1 Water continuity: unplanned i
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2.2.3 Water continuity: historical
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2.3 Sewage Overflow Standard (SPS 4
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2.3.3 Sewage overflows: historical
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3.1 Response times for Priorities 6
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Water use per capita per day 460 43
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4.1.1 Calculating water leakage The
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Table of Contents Introduction Tabl
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Table E.1 - NWI Water Resources and
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NWI W18 Total sewage collected The
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Table E.2 - IPART Service Quality a
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Table E.3 - NWI Customer Indicators
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Sydney Water continues to undertake
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Table E.4 - IPART Customer Service
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Ref. Indicator 2007-08 2008-09 2009
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Table E.7 - NWI Pricing Indicators
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Ref. Indicator 2007-08 2008-09 2009
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Water Efficiency Report
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Contents At a glance - 2011-12 1 1
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8 Water use forecast 30 8.1 2010-15
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As noted in last year’s Water Eff
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Recycled water In 2011-12, Sydney W
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person per day (LPD). In 2011-12, w
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Box A: Case study Working with cust
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A case study of a customer working
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2.3.3 Educational tours Sydney Wate
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3 Leak management in 2011-12 Best p
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3.5 Improving flow metering Flow me
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4.3 Water recycling projects Sydney
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5 Research, analysis and support in
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5.4 Water Conservation Program Impl
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5.11 Recycling research projects In
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Figure 11 Sydney Water’s Strategi
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lecturers, and local and state gove
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8 Water use forecast Our current de
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Appendix 2 Correcting for weather W
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Appendix 4 Estimating leakage Sydne
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Appendix 6 Savings achieved between
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Program 99-00 00-01 01-02 02-03 03-
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Appendix 8 List of acronyms and uni
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Table of Contents 1 Introduction 3
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(c) If either Sydney Water or a lic
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2.3 Delays by consent authorities N
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Distribution list Controlled copy D
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Contents 1. Introduction ..........
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Water quality - characteristics not
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Table 1: Exception summary for wate
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2.3 Performance for key characteris
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3.1.1 Evaluation of results on an e
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Delivery System No. of exceptions/t
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4. Water quality: other characteris
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Table 6: Summary of exceptions for
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Table 8: Summary of exceptions for
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5. Water Quality: Summary of NSW He
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Date of notification Event/incident
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Date of notification Event/incident
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Orchard Hills 2004 Guideline Health
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Prospect North 2004 Guideline Healt
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Ryde 2004 Guideline Health Value Qu
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Warragamba 2004 Guideline Health Va
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Macarthur 2004 Guideline Health Val
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Woronora 2004 Guideline Health Valu
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SWC Summary 2004 Guideline Health V
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Table 13: Aesthetic guideline value
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Delivery System : Prospect East 200
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Delivery System : Nepean 2004 Guide
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Delivery System : Cascades 2004 Gui
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Orchard Hills 2004 Guideline Aesthe
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Prospect North 2004 Guideline Aesth
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Ryde 2004 Guideline Aesthetic Value
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Warragamba 2004 Guideline Aesthetic
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Macarthur 2004 Guideline Aesthetic
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Woronora 2004 Guideline Aesthetic V
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SWC Summary 2004 Guideline Aestheti
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Cryptosporidium - (DAPI CONFIRMED)
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Giardia - (DAPI CONFIRMED) Quarter
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Table 16: Number of exceptions for
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Table 18: Chlorine performance by d
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Quarterly Recycled Water Quality Mo
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DOCUMENT STATUS This quarterly repo
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1. Introduction In Sydney Water’s
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Table 1: Exception summary for recy
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Table 2: Evaluation of results on e
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Sydney Water Operational Audit 2011/2 - IPART - NSW Government

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