volume 1 - Halifax Regional Municipality

Halifax Water Integrated Resource Plan
Recommended IRP and Analysis
TOTAL $2,579 million
30-Year NPV
Figure 6.2
Recommended IRP Expenditures by Driver (30-year NPV $ million)
6.3 RECOMMENDED IRP ANALYSIS
The Recommended IRP was analysed to assess the impact of three factors:
• The potential benefits of water demand reduction and I/I reduction on the
Recommended IRP.
• The level of asset renewal (A, B, C and composite) on end-of-period asset value.
• The population growth rate (high, baseline and low) on plan requirements.
6.3.1 Demand Reduction
One of the key requirements of the IRP Terms of Reference was the examination of
demand reduction strategies for both the water and wastewater systems. The purpose
was to explore the opportunities to incorporate such strategies as the focus of one or
more of the resource plans. Unfortunately, systematic data that would allow a
comprehensive examination of I/I reduction in particular were not available.
Consequently, a high-level analysis of opportunities was carried out with a view to
informing future integrated resource plan evaluation of the potential for incorporating
demand reduction strategies. The focus of the analysis was the Dartmouth WWTF,
which the RWWFP identified as requiring expansion due to growth.
I/I Programs
The IRP Recommended IRP contains significant investment in infrastructure projects
with an I/I reduction focus. Some of these projects are carried forward from the Five-
Year Capital Plan. These I/I related projects – including the projects specified in the
RWWFP – represent approximately $95 million in capital expenditure. As well, there is
$130 million based on the composite level of the renewal program in wastewater
Revision: 2012-10-29 Integrated Resource Plan 79
October 31 2012 Page 112 of 272