The tables below provides a summary of externality values associated with integrated water cycle management. There are a number of limitations associated with these figures, and a number of factors that need to be considered when applying them, that are discussed in the main body of the Aither report entitled externalities for integrated water cycle management”. This report “Valuing should be referred to before applying these values to ensure consistency with the rec ommended approach. Waterway health externalities summary Valuation Benefit approach Factors to consider when applying: - Applies to significant waterways only $1.00 to $3.00 per - Applied as a once-off benefit household per km of (present value) per household Improved waterway returned to (applicable population should be waterway health, good health or based on significance of waterway) or prevention of Willingness to prevented from - sensitivity of results over a large degradation pay studies degradation range should be tested (+/- 50%)
The tables below provides a summary of externality values associated with integrated water cycle management. There are a number of limitations associated with these figures, and a number of factors that need to be considered when applying them, that are discussed in the main body of the Aither report entitled “Valuing externalities for integrated water cycle management”. This report should be referred to before applying these values to ensure consistency with the rec ommended approach. Waterway health externalities summary Benefit Valuation approach Factors to consider when applying: Improved waterway health, or prevention of degradation Willingness to pay studies $1.00 to $3.00 per household per km of waterway returned to good health or prevented from degradation - Applies to significant waterways only - Applied as a once-off benefit (present value) per household (applicable population should be based on significance of waterway) - sensitivity of results over a large range should be tested (+/- 50%)