OPTION 3B: KEY METRICS AND CONSIDERATIONS Estimated Capital Costs
$1.178 billion
Estimated Operating Costs by 2030
$24 million
Estimated Annual Resource Income (heat, water) by 2030
Up to $3.8 million
Water Quality after Treatment for Core Area
100% tertiary at Colwood. 90% secondary, 10% tertiary for water reuse at Rock Bay & Esquimalt Nation
Estimated Length of New Pipes Required
54.0 km
Possible Number of Heat Recovery Systems
3
Possible Number of Water Re-use Systems
3
Carbon and Energy Footprint Rank
6th lowest footprint overall
BENEFITS:
IMPLICATIONS:
• Exceeds government regulations with a higher level of treatment than 3 plant secondary.
• The Colwood and Langford plants require new infrastructure and a new outfall.
• Wate re-use and heat resuse systems at all three facilities.
• Second to last carbon and energy ranking due to factors like infrastructure.
• Tied for second highest projected resource income from heat and water reuse.
For more detailed information, including a breakdown of costs and deeper technical analysis, please see the technical report: www.CoreAreaWastewater.ca CITIZENS’ GUIDE to Wastewater Alternatives January – February 2016
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