Water Reuse Calculator

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In collaboration with the Seattle 2030 District, Earth Economics developed a Water Reuse Calculator to help property owners in the Seattle area make the economic case for investing in rainwater and greywater capture and reuse systems.

These systems support improvements to the water performance of buildings to reduce stormwater runoff and lower associated drainage charges, vital steps towards the 2030 Challenge Pilot and Living Building Pilot Challenges.

By offering a simple way to develop benefit-cost analyses, this tool supports commercial landowners in the Seattle area who wish to invest in on-site grey water and rainwater reuse systems.

Reproduction of this publication for educational or other non-commercial purposes is authorized without prior written permission from the copyright holder provided the source is fully acknowledged. Reproduction of this publication for resale or other commercial purposes is prohibited without prior written permission of the copyright holder.

Wildish, J. 2020. Water Reuse Calculator. Earth Economics, Tacoma, WA.