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2012 Stormwater Managment Manual for Western Washington (Amended 2014)

Low Impact Development Technical Guidance Manual for Puget Sound (2012)

Rain Garden Handbook for Western Washington

Phase ll Stormwater Permit & Appendices

Stay informed on the update process for the 2018 Phase ll Stormwater Permit

Stormwater Pollution Prevention Plan (SWPPP) Template from Department of Ecology