Sensitivity: General Executive Summary STORMWATER MANAGEMENT ACTIVITY MANAGEMENT PLAN VERSION: 2021 – 4.0 For Audit Review Document Set ID: 10545234 Version: 2, Version Date: 20/01/2021 Revision Information Stormwater Management Activity Management Plan 2021 Prepared by Waipa District Council 101 Bank Street Te Awamutu New Zealand www.waipadc.govt.nz Activity Plan Owner Name Role Martin Mould Manager – Water Services Revision History Revision Plan Author Revision Date Details 1.0 Neil Taylor Mar 2019 New template for completion 2.0 Joong Lee & James McKinnon October 2019 Version for Peer Review 3.0 Kelsi Green & Kristina Hermens September 2020 Post Peer review Updates 4.0 Kelsi Green & Kristina Hermens December 2020 For Audit Review Reviewed By Name Role Tony Hale & Martin Mould Manager – Water Services Cyril Morris Asset Management Team Leader Mark Walmsley Senior Asset Planning Engineer Neil Taylor Asset Management Planning Analyst Dawn Inglis Group Manager – Service Delivery Tonkin & Taylor External Peer Review Document Set ID: 10545234 Version: 2, Version Date: 20/01/2021 Content Revision Information ................................................................................................................. 2 Content ..................................................................................................................................... 3 Executive Summary ................................................................................................................... 6 About This Plan............................................................................................................................. 7 Why We Do It ............................................................................................................................... 7 The Service Provided .................................................................................................................... 8 Managing Demand ..................................................................................................................... 10 Risk and Resilience ..................................................................................................................... 11 Managing our services and assets.............................................................................................. 12 Financials .................................................................................................................................... 15 AM Improvement ....................................................................................................................... 16 Main Document ....................................................................................................................... 18 1 Introduction ..................................................................................................................... 19 1.1 About This Plan .................................................................................................................. 19 1.2 About the Stormwater Management Service .................................................................... 20 1.3 Strategic Goals .................................................................................................................... 22 1.4 Planning and Regulatory Framework ................................................................................. 25 1.5 Effects of this Activity ......................................................................................................... 26 1.6 Variation from the Assessment of Water & Sanitary Services .......................................... 26 1.7 Current and Future Challenges and Opportunities ............................................................ 27 1.8 Impact of Covid 19 ............................................................................................................. 28 2 The Service Provided ........................................................................................................ 29 2.1 The Services We Deliver ..................................................................................................... 29 2.2 What Do Our Customers and Stakeholders Value? ........................................................... 33 2.3 Our Desired Levels of Service ............................................................................................. 34 2.4 Our LOS and LOS Gaps ....................................................................................................... 35 2.5 Our Future Programme to Deliver LOS .............................................................................. 38 2.6 Our Future Performance Targets ....................................................................................... 39 3 Managing Demand ........................................................................................................... 41 3.1 Demand Drivers .................................................................................................................. 41 3.2 Existing Demand ................................................................................................................. 41 3.3 Managing Demand on the Service ..................................................................................... 43 3.4 How Demand Is Changing and How It’s Impacting the Service ......................................... 44 3.5 Our Future Programmes to Meet Demand ........................................................................ 52 4 The Assets We Own .......................................................................................................... 54 Document Set ID: 10545234 Version: 2, Version Date: 20/01/2021 4.1 Network Overview ............................................................................................................. 54 4.2 Key Asset Statistics ............................................................................................................ 56 4.3 Critical Assets ..................................................................................................................... 58 4.4 The Condition and Performance of Our Assets ................................................................. 60 4.5 Asset Management Information System ........................................................................... 64 4.6 Asset Data Confidence ....................................................................................................... 65 5 Risk Management ............................................................................................................ 66 5.1 Risk Assessment ................................................................................................................. 66 5.2 Stormwater Management Resilience Approach ............................................................... 68 5.3 Climate Change .................................................................................................................. 69 5.4 Three Waters Master Plan 2020 ........................................................................................ 70 5.5 Our Future Programmes to Address Risk .......................................................................... 71 6 Managing Our Services and Assets ................................................................................... 73 6.1 Operating and Maintaining our Services and Assets ......................................................... 73 6.2 Future Programme to Deliver Operations and Maintenance ........................................... 78 6.3 Operations and Maintenance Future Costs Requirements ............................................... 80 6.4 Renewing the Assets .......................................................................................................... 81 6.5 Future Programme to Deliver Renewals ........................................................................... 83 6.6 Upgrading and Creating New Services and Assets ............................................................ 85 6.7 Upgrades and New Services and Assets Future Cost Requirements................................. 86 6.8 Project Programme to Deliver Solutions for Stormwater ................................................. 87 6.9 Longer Term Projects – Year 11+ ....................................................................................... 90 6.10 Stopping Services and Disposing of Assets ........................................................................ 90 7 Financial Summary ........................................................................................................... 91 7.1 Financial Requirements – What We Need ........................................................................ 91 7.2 Funding Strategy ................................................................................................................ 93 7.3 Assumptions Behind Financial Forecasts ........................................................................... 94 7.4 Financial Forecasts Confidence ......................................................................................... 95 8 AM Improvement ............................................................................................................. 96 8.1 Assessing AM Maturity ...................................................................................................... 96 8.2 Improvements We Achieved ............................................................................................