Eastern Washington municipal stormwater resources

Eastern Washington 2019-2024 Phase II Permit Compliance Assistance 

Phase II Eastern WA Compliance Deadline Table (Ecology)

EW LID manual upper image

Eastern Washington
Low Impact Development
Guidance Manual

City of Spokane Low Impact Development Ordinance

City of Spokane Low Impact Development Ordinance

Spokane River Regional Toxics Task Force

Learn more about the SRRTTF

Yakima County Regional Stormwater Design Manual

Regional Stormwater Manual


Eastern Washington Stormwater Organizations

Stormwater organizations in Eastern Washington

Stormwater Management Manual for Eastern Washington (2004)

Resources by Permit Section

Public Education and Outreach

Illicit Discharge Detection and Elimination

Construction Site Stormwater Runoff Control

Runoff Controls for Construction and Post-Construction Programs

Municipal Operations and Maintenance (O&M)

Monitoring and Assessment



Spokane River task force advances fight on toxics
New report shows progress toward reducing PCBs in river