Assessment of Water and Sanitary Services 2005 Table of Contents 1 INTRODUCTION ...................................................................................................................................................................................................................... 1 1.1 WHAT IS THIS ASSESSMENT ABOUT? ..................................................................................................................................................................................... 1 1.2 SCOPE OF ASSESSMENT ......................................................................................................................................................................................................... 1 1.3 LINKS TO OTHER COUNCIL PLANS AND POLICIES ................................................................................................................................................................... 2 1.4 POPULATION GROWTH AND DEVELOPMENT.......................................................................................................................................................................... 4 1.5 WORK WITH NEIGHBOURING TERRITORIAL AUTHORITIES ..................................................................................................................................................... 5 2 COMMUNITIES ........................................................................................................................................................................................................................ 6 2.1 RETICULATED COMMUNITIES ................................................................................................................................................................................................ 6 2.2 NON-RETICULATED COMMUNITIES ........................................................................................................................................................................................ 9 3 RISK .......................................................................................................................................................................................................................................... 13 3.1 STANDARDS......................................................................................................................................................................................................................... 13 3.2 DEVELOPING A RISK MANAGEMENT PLAN.......................................................................................................................................................................... 14 4 WATER..................................................................................................................................................................................................................................... 18 4.1 COMMUNITIES ..................................................................................................................................................................................................................... 18 4.2 STANDARDS......................................................................................................................................................................................................................... 18 4.3 WATER SUPPLY INFRASTRUCTURE...................................................................................................................................................................................... 20 4.4 ISSUES ................................................................................................................................................................................................................................. 21 4.5 THE PRESENT SITUATION .................................................................................................................................................................................................... 22 4.6 RISKS................................................................................................................................................................................................................................... 27 4.7 THE FUTURE & RISK MITIGATION........................................................................................................................................................................................ 32 4.8 FUTURE GROWTH................................................................................................................................................................................................................. 35 4.9 OUTCOMES OF CONSULTATION FOR WATER........................................................................................................................................................................ 37 4.10 FUTURE WATER RECOMMENDATIONS................................................................................................................................................................................. 38 5 WASTEWATER....................................................................................................................................................................................................................... 39 5.1 COMMUNITIES ..................................................................................................................................................................................................................... 39 5.2 STANDARDS......................................................................................................................................................................................................................... 41 5.3 WASTEWATER INFRASTRUCTURE ........................................................................................................................................................................................ 42 5.4 ISSUES ................................................................................................................................................................................................................................. 46 5.5 THE PRESENT SITUATION .................................................................................................................................................................................................... 47 5.6 WASTEWATER RISKS........................................................................................................................................................................................................... 50 5.7 THE FUTURE AND RISK MITIGATION ................................................................................................................................................................................... 54 5.8 FUTURE GROWTH ................................................................................................................................................................................................................ 58 5.9 OUTCOMES OF CONSULTATION FOR WASTEWATER ............................................................................................................................................................. 58 i Assessment of Water and Sanitary Services 2005 5.10 FUTURE WASTEWATER RECOMMENDATIONS ...................................................................................................................................................................... 59 6 STORMWATER ...................................................................................................................................................................................................................... 60 6.1 COMMUNITIES ..................................................................................................................................................................................................................... 60 6.2 STANDARDS......................................................................................................................................................................................................................... 60 6.3 STORMWATER INFRASTRUCTURE ........................................................................................................................................................................................ 61 6.4 ISSUES ................................................................................................................................................................................................................................. 65 6.5 THE PRESENT SITUATION .................................................................................................................................................................................................... 67 6.6 STORMWATER RISKS ........................................................................................................................................................................................................... 74 6.7 THE FUTURE AND RISK MITIGATION ................................................................................................................................................................................... 77 6.8 FUTURE GROWTH................................................................................................................................................................................................................