volume 1 - Halifax Regional Municipality

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<strong>Halifax</strong> Water Integrated Resource Plan Appendices Table 2.3 Wastewater and Stormwater System Asset Renewal Analysis Asset Group Design Asset Life (Years) Current Annual Expenditure as % of Total Replacement Value Variation Annual Asset Renewal Rate % of Replacement Value Asset Renewal Model 30 year NPV (Discount Rate 3%) ($m) A 2.50% $7.2 Culverts 50 2.41% B 2.00% $5.8 C 1.66% $4.8 A $885.4 Wastewater and Stormwater System Totals B $605.3 C $310.2 The results presented in Table 3.4 show the following: • At present a modest fraction of the sewers and trunk sewers are above design life. The M&E and ICA components of the wastewater treatment facilities and pumping stations, forcemains and the stormwater conveyance assets are all presently within design service life. • Modelling results for asset renewal levels A through C all maintain a zero % fraction above design life for M&E and ICA components of the wastewater treatment facilities, pumping stations, forcemains and the stormwater conveyance assets at the end-of-period. • The asset renewal modelling results for the trunk sewers and collectors show a decrease in fraction above design life for the A and B levels of asset renewal. The C level shows a slight increase. The average results increase in all cases with smaller increases associated with the A and B levels versus the C level. Revision: 2012-10-29 Integrated Resource Plan –Appendices F-15 October 31 2012 Page 194 of 272
<strong>Halifax</strong> Water Integrated Resource Plan Appendices Table 2.4 Asset Wastewater and Stormwater System Asset Average Age and Fraction Above Design Life Design Asset Life (Years) Variation A Average Asset Life (Weighted Age) (Years)* Fraction Above Design Life (Proportion Greater than Expected Life)* End-of-Period Asset Age (Weighted Age) (Years)* End-of-Period Fraction Above Design Life (Proportion Greater than Expected Life)* 56.77 1.00% Sewers 100 B 43.81 7% 60.46 5.00% C 64.62 8.00% A 56.78 1.00% Trunk 100 B 43.81 7% 60.46 5.00% C 64.63 8.00% A 15.59 0.00% Forcemains 50 B 28.17 0% 23.85 0.00% Pumping Stations Treatment Facilities Civil - 50 M&E - 20 ICA - 10 Civil - 50 M&E - 30 ICA - 10 C 38.81 0.00% A 13.73 0.00% B 4.5 0% 13.67 0.00% C 13.40 0.00% A 9.33 0.00% B 4.65 0% 12.02 0.00% C 13.45 0.00% A 38.05 0.00% Pipes 75 B 28.3 0% 46.76 0.00% C 53.30 0.00% A 0.00% Culverts 50 B 24.3 0% 0.00% C 0.00% Revision: 2012-10-29 Integrated Resource Plan –Appendices F-16 October 31 2012 Page 195 of 272
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VOLUME 1: INTEGRATED RESOURCE PLAN
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Halifax Water Integrated Resource P
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Halifax Water - Integrated Resource
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Halifax Water - Integrated Resource
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Page 177 and 178: FINAL 1 2 3 4 5 6 7 10 13 16 17 18
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Financial Model 40-4 1.028 Cavalier
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Financial Model 40-4 3.511 Stokil (
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Financial Model 40-4 2.075 Beaver C
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Financial Model 40-4 2.848 Storage
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Summary of Capital, Operational and
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Asset Renewal Costs Halifax Water I
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Asset Renewal Costs Stormwater Asse
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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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