Water Activity Management Plan 2021 (Version 5) Mt Misery 8000m3 Reservoir, Morrinsville 1 Water Activity Management Plan Quality Information Document Water Activity Management Plan Ref Version 5 Date 4 March 2021 Prepared by Aaron Toone- Utilities Asset Engineer Reviewed by Susanne Kampshof - Asset Manager Strategy and Policy Copies 2 Table of Contents 1. Executive Summary ................................................................................................... 8 2. Introduction .............................................................................................................. 14 2.1 Purpose of the Plan .......................................................................................... 14 2.2 Relationship with other Plans ............................................................................ 14 2.3 Key Stakeholders .............................................................................................. 16 2.4 Plan Format ...................................................................................................... 16 2.5 Description of Activity ........................................................................................ 17 2.6 Brief Description of Assets ................................................................................ 19 2.7 Assessment of Water Services 2017 ................................................................. 19 2.8 Asset Management Policy ................................................................................. 22 2.8.1 Objective of the Asset Management Policy ........................................... 22 2.8.2 Appropriate Activity Management Levels .............................................. 22 2.8.3 ‘Intermediate’ Asset Management Practice ........................................... 22 2.9 Renewal/Replacement Policy ............................................................................ 23 2.9.1 Renewal Methodology ........................................................................... 23 2.9.2 Deferred Maintenance/Renewals .......................................................... 24 2.10 Water Bylaw ...................................................................................................... 24 2.11 Fluoridation ....................................................................................................... 24 3. Sustainability............................................................................................................ 25 3.1 Definitions ......................................................................................................... 25 3.2 Objectives ......................................................................................................... 25 3.3 Sustainability and Lifecycle ............................................................................... 25 3.4 Sustainable Development ................................................................................. 25 3.5 Efficient Use of Energy with Council’s Three Water Facilities ............................ 26 3.6 Significant Effects ............................................................................................. 27 4. Levels of Service ...................................................................................................... 28 4.1 Background ....................................................................................................... 28 4.2 LTP Community Outcomes ............................................................................... 28 4.3 Legislative Requirements .................................................................................. 30 4.4 Why is Council Involved in this Activity .............................................................. 31 4.5 Strategic Assets ................................................................................................ 31 4.6 Strategic and Critical Assets ............................................................................. 32 4.7 Management Structure and Responsibilities ..................................................... 32 4.8 Asset Management Structure ............................................................................ 34 4.9 Performance Measures ..................................................................................... 34 4.9.1 Background ........................................................................................... 35 4.9.2 Performance Criteria ............................................................................. 35 4.9.3 Performance Monitoring ........................................................................ 38 4.10 Customer Research and Expectations .............................................................. 38 4.10.1 Consultation .......................................................................................... 38 4.10.2 Customer Surveys ................................................................................ 38 5. Growth and Demand ................................................................................................ 40 5.1 Growth Forecast ............................................................................................... 40 5.1.1 Background ........................................................................................... 40 5.1.2 Population and Dwelling Profile for towns with water facilities (Estimated 2020) 41 5.1.3 Effect of Under-estimating Growth ........................................................ 42 5.1.4 District Plan Change 47 ........................................................................ 42 5.2 Water Trends .................................................................................................... 44 5.2.1 General ................................................................................................. 44 5.2.2 Water Consumption Trends in Matamata Piako District ........................ 44 3 5.2.3 Climate Change .................................................................................... 46 5.2.4 Water Losses/Unaccounted for Water Use ........................................... 47 5.3 Demand Management ....................................................................................... 47 5.3.1 Strategies .............................................................................................. 47 5.3.2 Capital Works Associated with Demand ................................................ 49 5.4 Network Modelling ............................................................................................ 49 6. Lifecycle Management Plan .................................................................................... 50 6.1 Description of Water Activity ............................................................................. 50 6.1.1 Matamata- Piako Overview ................................................................... 50 6.2 Water Activity .................................................................................................... 50 6.2.1 Summary of Assets ............................................................................... 51 6.2.2 Data Confidence and Reliability ............................................................ 52 6.3 Matamata Water Scheme ................................................................................. 55 6.3.1 Matamata Scheme Overview ................................................................ 55 6.3.2 Matamata Scheme Information ............................................................. 56 6.3.3 Matamata Treatment Plants .................................................................. 59 6.3.4 Matamata Reticulation .......................................................................... 61 6.3.5 Waharoa/Raungaiti Reticulation ............................................................ 61 6.3.6 Matamata Resource Consents .............................................................. 62 6.4 Water ................................................................................................................ 63 6.5 Morrinsville Water Scheme ............................................................................... 63 6.5.1 Morrinsville Scheme Overview .............................................................. 63 6.5.2 Morrinsville Scheme Information ........................................................... 63 6.5.3 Morrinsville Treatment Plant .................................................................. 65 6.5.4 Morrinsville Reticulation ........................................................................ 66 6.5.5 Morrinsville Resource Consents ............................................................ 68 6.6 Te Aroha Water Scheme ................................................................................... 68 6.6.1 Te Aroha Scheme Overview ................................................................. 68 6.6.2 Te Aroha Scheme Information .............................................................. 68 6.6.3 Te Aroha Treatment Plant ..................................................................... 71 6.6.4 Te Aroha Reticulation ............................................................................ 72 6.6.5 Te Aroha West Supply .......................................................................... 74 6.6.6 Te Aroha Resource Consents ............................................................... 74 6.7 Tahuna Water Scheme ....................................................................................