volume 1 - Halifax Regional Municipality

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Halifax Water Integrated Resource Plan Executive Summary ES 5. ES 5.1 INTEGRATED RESOURCE PLAN DEVELOPMENT Overview The selection of the Recommended Integrated Resource Plan was a multi-step iterative process involving the Halifax Water technical team comprised of staff and consultants collaborating with the Tellus team. Results of plan development and analysis were presented to the stakeholders group at key points in the process. Figure ES-2 presents an overview of the IRP alternative resource plan development. ES 5.2 Figure ES-2 IRP Drivers IRP Alternative Resource Plan Development ES 5.2.1 Growth Growth is one of the key IRP drivers. All three-infrastructure systems will need to meet future growth demands. Revision: 2012-10-29 Integrated Resource Plan – Executive Summary ES-6 October 31 2012 Page 8 of 272
Halifax Water Integrated Resource Plan Executive Summary HRM planning department provided a range growth projections for use by the IRP project team. Based on the mid-range of those projections the following growth estimates were developed and applied to the IRP and the RWWFP: • Residential growth to 2046 – 159,240 persons. • Employment area growth to 2046 – 698.1 ha. The impact of growth was examined for both the water and wastewater systems. Most of the new growth is planned to occur in the urban core or adjacent areas. Very little of the growth other than infill is expected in the satellite communities. Hence the impacts were primarily on the large water and wastewater facilities and associated distribution or collection systems. New separated stormwater systems would be developed at the same time as the new growth areas and the impact on existing infrastructure would likely be small. Major facilities that will require expansion due to growth include: • The Lake Major WSP will be well within plant capacity but reaching the water withdrawal permit at the end of 2046. There will be a need for exploring additional water supplies beyond the 2046 horizon. • The potential demand at the Bennery Lake WSP is predicted to surpass the safe yield and water withdrawal permit by 2016 and the plant’s capacity between 2021- 2026. Therefore, during the timeframe of the IRP there is a need to expand the Bennery Lake WSP, increase safe yield of the lake (e.g. using a dam or pumping from Grand Lake), and submit an application to NSE to request an increase in the Water Withdrawal Permit. • The RWWFP recommended a plan that provides a regional wastewater strategy with upgrades required at a number of WWTFs as well as linking conveyance systems. WWTF expansion will be required as follows: - Dartmouth – A 16.06 ML/d capacity expansion (2021 - 2026 horizon). - Herring Cove – A 53.55 ML/d capacity expansion (2031 - 2036 horizon). - Aerotech – A further 4.65 ML/d capacity expansion (2031 - 2036 horizon), in addition to the 3.00 ML/d capacity expansion project already underway. • In addition, there are a number of growth-related water and wastewater projects expanding transmission mains, pumping facilities and sewers. ES 5.2.2 Regulatory Compliance The second IRP driver involved consideration of current and future regulatory compliance requirements for all three systems. Revision: 2012-10-29 Integrated Resource Plan – Executive Summary ES-7 October 31 2012 Page 9 of 272
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Financial Model 40-4 Halifax Water
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Asset Renewal Costs Halifax Water I
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Statement Concerning Halifax Water
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Statement Concerning Halifax Water
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volume 1 - Halifax Regional Municipality

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