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DRINKING WATER QUALITY MANAGEMENT PLAN

2018 to

2019

FINANCIAL YEAR

ANNUAL REPORT

DOCUMENT CONTROL Document Revision and Modification Control

DATE

AUTHORS

Phil Wetherell / 28/10/2019 Craig Fox-

Andrews

11/12/2019 Phil Wetherell

18/12/2019 Phil Wetherell

MODIFICATION / ACTION

REV.

KEY REVIEWER

DM REF #

Draft

V1

Phil Wetherell DM#13222426

Draft Final

V2

Natasha Georgius

V17

Chris PipeMartin

DM#13222426 (Word)

DM#13384522 (PDF)

DM#13222426 (Word)

DM#13384522 (PDF)

Final Document Approval for Issue

DATE APPROVER

POSITION

SIGNATURE

19/12/2019 Darren Moore Acting Water Business Manager

This document is the property of Logan City Council and its issue is controlled. The information contained herein may not be disclosed in whole or in part, either verbally or in writing, without the prior consent of Logan City Council. Printed copies are uncontrolled.

DWQMP Annual Report 2018/19

Commercial ? In ? Confidence

DOCUMENT NUMBER 13222426

NOTATIONS AND ABBREVIATIONS

Acronym

Definition

ADWG

AS BAU CCP CGC Council CRM DEWS

DNRM&E DSS DWQMP E. coli

EPI ERP FY Grid HACCP HLZ IDM IMP KPI LIMS LLZ LOD LOR LWIA mg/L MPN/100mL NMDP NATA RMIP SAMMS SCADA SEQ SOP SRWP THM WGM WH&S WOP WPR

Australian Drinking Water Guidelines, 2011. Published by the National Health and Medical Research Council of Australia Australian Standard Business As Usual Critical Control Point (as defined by HACCP) City of Gold Coast Logan City Council Customer Relationship Management (system) Department of Energy and Water Supply, now known as Department of Natural Resources, Mines & Energy (DNRM&E) Department of Natural Resources, Mines and Energy Desired Standards of Service Drinking Water Quality Management Plan Escherichia coliform, a bacterium which is considered to indicate the presence of faecal contamination and therefore potential health risk Eastern Pipeline Interconnector Emergency Response Plan Financial Year South East Queensland Water Supply Network Grid Hazard Analysis Critical Control Point High Level Zone Infrastructure Demand Model Incident Management Plan Key Performance Indicator Laboratory Information Management System Low Level Zone Limit of Detection Limit of Reporting Logan Water Infrastructure Alliance Milligrams per litre Most Probable Number per hundred millilitres Network Maintenance Disinfection Program National Association of Testing Authorities Risk Management Improvement Plan Strategic Asset Maintenance Management Systems Supervisory Control and Data Acquisition South East Queensland Standard Operating Procedure Southern Regional Water Pipeline Trihalomethane Water Grid Manager Workplace Health and Safety Work Operating Procedure Water Planning and Regulation (formally QLD Office of the Water Supply Regulator)

Logan City Council

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DWQMP Annual Report 2018/19

Commercial ? In ? Confidence

DOCUMENT NUMBER 13222426

WSZ WTP WWETT

Water Supply Zone Water Treatment Plant Water and Wastewater Event Tracking Tool

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DWQMP Annual Report 2018/19

Commercial ? In ? Confidence

DOCUMENT NUMBER 13222426

CONTENTS

1 INTRODUCTION ............................................................................................................................................................... 7 2 SUMMARY OF SCHEMES OPERATED .............................................................................................................................. 8

COUNCIL'S DRINKING WATER SUPPLY SYSTEM................................................................................................................... 8 SEQ WATER SUPPLY NETWORK GRID .............................................................................................................................. 8 COUNCIL'S DRINKING WATER SUPPLY NETWORK ............................................................................................................. 10 DRINKING WATER DISINFECTION .................................................................................................................................. 10 COUNCIL'S DRINKING WATER SUPPLY ZONES .................................................................................................................. 11 3 DWQMP IMPLEMENTATION ......................................................................................................................................... 14 PROGRESS IN IMPLEMENTING THE RISK MANAGEMENT IMPROVEMENT PLAN ........................................................................ 14

Risk Management Improvement Plan Process ................................................................................................. 14 Implementation of the RMIP ............................................................................................................................ 14 4 VERIFICATION MONITORING ? WATER QUALITY INFORMATION AND SUMMARY.................................................... 19 COMPLIANCE SUMMARY ............................................................................................................................................. 19 MONITORING PROGRAM OVERVIEW.............................................................................................................................. 20 LAB REPORTING CHANGES ............................................................................................................................................ 20 DATA ANALYSIS METHODOLOGY ................................................................................................................................... 20 5 NOTIFICATIONS TO THE REGULATOR UNDER SECTIONS 102 AND 102A OF THE ACT................................................. 21 NOTIFICATION EVENTS REPORTED TO THE REGULATOR....................................................................................................... 21 Non-compliant Events - Verification Monitoring Program ............................................................................... 22 Non-compliant Events ? Non Verification Monitoring ...................................................................................... 23 6 CUSTOMER COMPLAINTS RELATED TO DRINKING WATER QUALITY .......................................................................... 24 COMMUNITY ENGAGEMENT......................................................................................................................................... 24 Key Projects....................................................................................................................................................... 24 CUSTOMER COMPLAINTS............................................................................................................................................. 24 Suspected Health .............................................................................................................................................. 27 Appearance....................................................................................................................................................... 28 Taste and Odour ............................................................................................................................................... 29 7 DRINKING WATER QUALITY MANAGEMENT PLAN REVIEW OUTCOMES.................................................................... 32 DWQMP REVIEW ..................................................................................................................................................... 32 DWQMP INTERNAL AUDIT.......................................................................................................................................... 32 8 DRINKING WATER QUALITY MANAGEMENT PLAN AUDIT FINDINGS.......................................................................... 37 APPENDIX A - SUMMARY OF COMPLIANCE WITH WATER QUALITY CRITERIA.................................................................... 38 APPENDIX B - IMPLEMENTATION OF THE RISK MANAGEMENT IMPROVEMENT PROGRAM ............................................. 53

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