Valuation Factors to consider when Benefit approach Value applying: - apply where a reticulated water source could be used to produce net benefits - applies only if option provides a permanent change in water demand - cannot be summed with benefits of additional water use (benefit is the avoidance of costs associated with centralised supply) Avoided - currently under review and reticulated should be updated when better supply costs avoided cost $0.46 per kL of water data is available - apply where a permanent change in wastewater volume is expected (benefit is the - $0.67 per kL of avoidance of costs associated wastewater (Eastern with centralised treatment) Treatment Plant) - $0.44 per kL of - currently under review and Avoided wastewater (Western should be updated when better sewerage avoided cost Treatment Plant) data is available - apply if LRMC approach not applicable - apply to each degree of urban $1,270 per 100,000 cooling produced on each day Urban cooling - people per degree above 30 degrees heat-related avoided cost of above 30 degrees per - does not include mortality health impacts treatment day impacts or additional impacts
Benefit Valuation approach Value Factors to consider when applying: Avoided reticulated supply costs avoided cost $0.46 per kL of water - apply where a reticulated water source could be used to produce net benefits - applies only if option provides a permanent change in water demand - cannot be summed with benefits of additional water use (benefit is the avoidance of costs associated with centralised supply) - currently under review and should be updated when better data is available Avoided sewerage avoided cost - $0.67 per kL of wastewater (Eastern Treatment Plant) - $0.44 per kL of wastewater (Western Treatment Plant) - apply where a permanent change in wastewater volume is expected (benefit is the avoidance of costs associated with centralised treatment) - currently under review and should be updated when better data is available Urban cooling - heat-related health impacts avoided cost of treatment $1,270 per 100,000 people per degree above 30 degrees per day - apply if LRMC approach not applicable - apply to each degree of urban cooling produced on each day above 30 degrees - does not include mortality impacts or additional impacts