volume 1 - Halifax Regional Municipality

Halifax Water Integrated Resource Plan
Integrated Resource Plan Development and Evaluation
Table 5.4
Initial Alternative Resource Plan Variations
Driver
Objective
Infrastructure
System
Variation
Three levels asset renewal were considered for
point assets
A – 0.8 x asset life
8. Implement Optimal Level
of Asset Renewal
Water,
Wastewater,
Stormwater
B – 1.0 x asset life
C – 1.2 x asset life
Three levels of asset renewal were considered
for linear assets
A – Decreasing average asset life over period
B – No change in average asset life over period
C – Increasing average asset life over period
Asset
Renewal
9. Enhance the Reliability
of Critical Water and
Wastewater Assets
Water,
Wastewater
Time frame to implement water system security
program is based on Five-Year Capital Plan
modified through the IRP
10. Ensure Existing
Stormwater System
Adequately Sized for
Minor Storm
Conveyance
Stormwater
Implementation timing of 10 years is for
stormwater capacity evaluation program
development
11. Adapt to Future Climate
Change
Water,
Wastewater,
Stormwater
Implementation timing of 3 years is for HW
climate change program development
12. Reduce Energy
Consumption, Operating
Costs and Greenhouse
Gas Contributions
Water,
Wastewater
Time frame to implement energy reduction
projects is based on the Energy Management
Plan as presented in the Five-Year Capital Plan
Growth
13. Provide Regional Water,
Wastewater and
Stormwater
Infrastructure Needed to
Support Planned Growth
Water,
Wastewater,
Stormwater
Timing for wastewater projects/programs as per
RWWFP designed to meet demands of baseline
growth; timing for water projects/programs as
laid out in IRP Financial Model; no regional level
stormwater projects/programs are anticipated
for growth
14. Manage Flow Capacity
Allocations
Water,
Wastewater
Timing as per RWWFP designed to manage
demands of baseline growth
Revision: 2012-10-29 Integrated Resource Plan 61
October 31 2012 Page 94 of 272