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

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Table 18: Chlorine performance by distribution system for 2004-05 to 2011-12 Delivery System % of Test Results at Customers Taps meeting Chlorine Residual Targets (Internal Target = 90 %) Greaves Creek North Richmond 2004-05 2005-06 2006-07 2007-08 2008-09 2009-10 2010-11 2011-12 96.30% 93.14% 92.16% 97.06% 95.10% 99.51% 97.55% 97.06% 98.53% Orchard Hill 93.13% 92.44% 90.83% 87.59% 95.56% 98.50% 98.38% 91.27% Prospect South Prospect North 93.79% 99.20% 98.08% 98.43% 98.11% 97.80% 95.30% 96.67% 88.02% 90.43% 88.31% 85.35% 86.38% 82.43% 80.46% 89.94% Prospect East 98.68% 99.36% 98.50% 98.90% 99.56% 98.46% 99.78% 99.34% Ryde 89.05% 87.98% 81.59% 84.67% 86.02% 79.98% 74.43% 85.31% Potts Hill 96.53% 95.45% 91.62% 91.91% 95.75% 90.53% 87.03% 87.94% Warragamba 87.96% 96.30% 100% 95.37% 97.22% 98.15% 98.15% 91.67% Nepean 91.03% 98.72% 88.46% 87.74% 96.79% 98.72% 98.08% 97.44% Macarthur 80.21% 84.17% 89.63% 83.13% 91.67% 90.83% 86.25% 85.77% Illawarra 95.71% 97.98% 91.54% 95.83% 99.12% 96.72% 94.95% 95.57% Woronora 81.36% 79.94% 66.67% 58.33% 74.47% 72.22% 66.35% 85.29% Cascades 92.11% 90.23% 92.63% 93.88% 99.55% 98.94% 97.92% 99.64% Total 91.78% 92.90% 89.95% 89.58% 92.89% 89.91% 87.25% 90.79% Note: Results in blue and bold are those less than the 90% target. Page | 66
Table 19: Customer complaints for 2010-11 compared to 2011-12 Delivery System Received 2010-11 2011-12 Resolved as Sydney Water’s responsibility* Received Resolved as Sydney Water’s responsibility* North Richmond 41 N/A 43 N/A Orchard Hill 296 N/A 213 N/A Prospect South 138 N/A 74 N/A Prospect North 306 N/A 228 N/A Prospect East 48 N/A 46 N/A Ryde 241 N/A 306 N/A Potts Hill 959 N/A 597 N/A Warragamba 6 N/A 3 N/A Nepean 43 N/A 36 N/A Macarthur 252 N/A 240 N/A Illawarra 339 N/A 241 N/A Woronora 39 N/A 69 N/A Cascades 102 N/A 136 N/A Total 2810 1005 2232 839 Discoloured Water 2223 912 1750 718 Taste & Odour 421 71 335 100 WQ others 59 2 74 15 Health 107 20 73 6 *Note: In 2005-2006 SWC Customer and Community Relations Division began reporting customer complaints as those that had been resolved to be Sydney Water’s responsibility. These numbers are not available by Delivery System. Page | 67
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
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A Operational Audit Report 2011/12
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Executive summary Introduction GHD
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Compliance Against Audited Licence
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Figure index Figure 1 Sydney Water'
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1. Introduction 1.1 Sydney Water Co
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1.5 Audit Methodology The operation
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2. Water Quality - Part 2 2.1 Summa
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Information provided by Sydney Wate
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In particular, routine verification
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3. Infrastructure Performance - Par
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Unexpected claims for additional wo
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maintenance request developed. This
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3.6.2 Opportunities for Improvement
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Up until the two most recent years,
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OFI 7.4 IPART should note that any
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Appendix A - Glossary and Dictionar
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Abbreviation/Acronym ISO IT JOG kL
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Clause Requirement Grade Reason a S
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Clause Requirement Grade Reason Aud
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Appendix C - Water Quality Detailed
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Clause Requirement Grade and Reason
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Appendix D - Water Quality Detailed
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Appendix E - Infrastructure Perform
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Appendix F - Water Conservation Det
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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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Page 270 and 271: 5. Water Quality: Summary of NSW He
Page 272 and 273: Date of notification Event/incident
Page 274 and 275: Date of notification Event/incident
Page 276 and 277: Orchard Hills 2004 Guideline Health
Page 278 and 279: Prospect North 2004 Guideline Healt
Page 280 and 281: Ryde 2004 Guideline Health Value Qu
Page 282 and 283: Warragamba 2004 Guideline Health Va
Page 284 and 285: Macarthur 2004 Guideline Health Val
Page 286 and 287: Woronora 2004 Guideline Health Valu
Page 288 and 289: SWC Summary 2004 Guideline Health V
Page 290 and 291: Table 13: Aesthetic guideline value
Page 292 and 293: Delivery System : Prospect East 200
Page 294 and 295: Delivery System : Nepean 2004 Guide
Page 296 and 297: Delivery System : Cascades 2004 Gui
Page 298 and 299: Orchard Hills 2004 Guideline Aesthe
Page 300 and 301: Prospect North 2004 Guideline Aesth
Page 302 and 303: Ryde 2004 Guideline Aesthetic Value
Page 304 and 305: Warragamba 2004 Guideline Aesthetic
Page 306 and 307: Macarthur 2004 Guideline Aesthetic
Page 308 and 309: Woronora 2004 Guideline Aesthetic V
Page 310 and 311: SWC Summary 2004 Guideline Aestheti
Page 312 and 313: Cryptosporidium - (DAPI CONFIRMED)
Page 314 and 315: Giardia - (DAPI CONFIRMED) Quarter
Page 316 and 317: Table 16: Number of exceptions for
Page 320 and 321: Quarterly Recycled Water Quality Mo
Page 322 and 323: DOCUMENT STATUS This quarterly repo
Page 324 and 325: 1. Introduction In Sydney Water’s
Page 326 and 327: Table 1: Exception summary for recy
Page 328: Table 2: Evaluation of results on e
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Sydney Water Operational Audit 2011/2 - IPART - NSW Government

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