volume 1 - Halifax Regional Municipality
volume 1 - Halifax Regional Municipality volume 1 - Halifax Regional Municipality
Halifax Water Integrated Resource Plan Appendices 4.1.2 Supply-Side Options TOR Requirement 1. IRP process will identify appropriate and practical supply-side options that may include methods and technologies to reduce water production volumes, wastewater overflows, manage flood levels, strengthen standards for system expansion, and manage power consumption. 2. IRP process will identify regulatory constraints, environmental impacts, and both capital and operating costs associated with each set of supplyside options. IRP Reference Sections 5.4 Sections 3 and 5 Volume 1 Appendices F and H Volume 3 Appendices A, B and C RWWFP Tables 5.2 and 5.3 describe existing and new programs developed by Halifax Water. See also ToR # 23, ToR # 36 and ToR # 42. Sections 3 and 5 as well as Volume 1 Appendix F, Volume 3 Appendices A, B and C and the RWWFP present the analysis of supply-side options and costs. The financial model for the Recommended Plan is presented in Volume 1 Appendix H. It provides both capital and new O&M costs for the supply-side options. See above also. The supply-side assessment may include but not be limited to the following technologies and methods: • Enhanced redundancy and optimization routing • Leak detection surveys • Leak reduction program • Master meter calibration • Water Treatment Plant operational uses • Additional treatment capacity or upgrades • Transmission main upgrades • Source protection • Strategic land management • CSO/SSO management • Optimize number and configuration of pumping stations • Over-sizing pipes / storage • System optimization and flow routing • Optimize power requirements • Additional treatment capacity or upgrades • Regulatory upgrades • Receiving water quality • Strategic land management • On-site reduction of run-off • Optimization of drainage paths / corridors • Retention / storage • System optimization and flow routing • Deep storm sewer installation receiving water quality • Strategic land management Revision: 2012-10-29 Integrated Resource Plan –Appendices G-14 October 31 2012 Page 226 of 272
Halifax Water Integrated Resource Plan Appendices 4.1.3 Demand-Side Options TOR Requirement 1. IRP process will investigate demand-side management options to reduce finish water requirements and wastewater flows. 2. IRP process will include demand-side assessments of cost, supply and capacity needs, and usage impacts. IRP Reference Section 6.3 Section 6.3 A full business case analysis of demand reduction was not feasible for this IRP due to considerable limitations in available data and time needed to assess and analyse results. The approach that was taken examined the benefit value gained from demand reduction for the wastewater system and compared these values with literature-based information on flow reduction costs. The focus of the analysis was a case study of the combined benefits of water efficiency and I/I reduction on the expansion requirements identified under the RWWFP for the Dartmouth facility. See above. The demand-side assessment may include but not be limited to the following technologies and methods: • Customer leak reduction • Service meter calibration • Non-revenue water • Water conservation (outdoor water use reductions, xeriscaping, plumbing code modifications, water audits, etc.) • Rate incentives • I/I reduction (illegal connections, cross-connections, storage, retention, water movement optimization, etc.) • Water recycling • Rate incentives • Lateral repairs • Source control • Construction standards • Grading requirements • Comprehensive controlled drainage management • Source control • Sediment / erosion management • Stormwater rate structure • Construction standards Revision: 2012-10-29 Integrated Resource Plan –Appendices G-15 October 31 2012 Page 227 of 272
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<strong>Halifax</strong> Water Integrated Resource Plan<br />
Appendices<br />
4.1.3 Demand-Side Options<br />
TOR Requirement<br />
1. IRP process will investigate demand-side<br />
management options to reduce finish water<br />
requirements and wastewater flows.<br />
2. IRP process will include demand-side assessments of<br />
cost, supply and capacity needs, and usage impacts.<br />
IRP Reference<br />
Section<br />
6.3<br />
Section<br />
6.3<br />
A full business case analysis of demand reduction was not feasible for this IRP due to<br />
considerable limitations in available data and time needed to assess and analyse results. The<br />
approach that was taken examined the benefit value gained from demand reduction for the<br />
wastewater system and compared these values with literature-based information on flow<br />
reduction costs. The focus of the analysis was a case study of the combined benefits of water<br />
efficiency and I/I reduction on the expansion requirements identified under the RWWFP for the<br />
Dartmouth facility.<br />
See above.<br />
The demand-side assessment may include but not be limited to the following technologies and methods:<br />
• Customer leak reduction<br />
• Service meter calibration<br />
• Non-revenue water<br />
• Water conservation (outdoor water use reductions,<br />
xeriscaping, plumbing code modifications, water audits,<br />
etc.)<br />
• Rate incentives<br />
• I/I reduction (illegal connections, cross-connections,<br />
storage, retention, water movement optimization, etc.)<br />
• Water recycling<br />
• Rate incentives<br />
• Lateral repairs<br />
• Source control<br />
• Construction standards<br />
• Grading requirements<br />
• Comprehensive controlled drainage management<br />
• Source control<br />
• Sediment / erosion management<br />
• Stormwater rate structure<br />
• Construction standards<br />
Revision: 2012-10-29 Integrated Resource Plan –Appendices G-15<br />
October 31 2012 Page 227 of 272