Stormwater Resources

County Resources

King County Stormwater Services and information

Pierce County Surface Water Management


City Resources

City stormwater pages are usually found on the City's web page under the following headings: Government > Departments > Public Works (or Utility) > Stormwater (or Surface Water). Each City should have a stormwater system map, links to their stormwater codes and development requirements (like drainage review), and a hotline or online portal for reporting a spill or drainage issue.
Development resources for stormwater facility design are often found under Public Works > Development or Engineering Standards, or may also be found under Community Development and Permitting web pages.

Learn About Stormwater Where You Live

How's My Waterway - Home (

Statewide Resources

WA Dept. of Ecology - Stormwater and Runoff


Low Impact Development

Low Impact Development – Washington Stormwater Center 

Low Impact Development (LID) guidance - Washington State Department of Ecology 

Urban Runoff: Low Impact Development | Polluted Runoff: Nonpoint Source (NPS) Pollution | US EPA

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