Washington State Department of Ecology. 1993. Washington State Wetlands Rating System: Western Washington, second edition. Washington State Department of Ecology, Olympia, WA.

benefits, costs, impacts, Management, wetlands, tool

https://fortress.wa.gov/ecy/publications/documents/93074.pdf

This rating system aims to differentiate between wetlands according to their rarity, irreplaceability, sensitivity to disturbance, and the functions they provide.