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Stormwater runoff from construction sites can carry muddy water, debris, and chemicals into local waterways. Sediments, chemicals, and debris can harm aquatic life and reduce water quality. We require regulated construction sites to get coverage under the Construction Stormwater General Permit (CSWGP). Following the requirements in this permit helps control and reduce water pollution.

Notice of Intent (NOI) for Construction Activity

Stormwater can pick up pollution from factories and businesses. Those contaminants are carried into waterways and harm fish and other aquatic life. The Industrial Stormwater General Permit (ISGP) helps industrial facilities comply with federal regulations that reduce pollution. 

Notice of Intent (NOI) for Industrial Activity

King County, West Nile VIRUS information.

Puget Sound Starts Here campaign is to educate and empower Puget Sound area residents regarding what they can do to keep pollution out of our local surface water resources, including lakes, rivers, streams and the marine waters of Puget Sound. The campaign will help residents better understnd that what flows into storm drains is generally untreated and winds up in local waterways.  See the links here for more information: Puget Sound Starts Here or YouTube. Puget Sound Starts Here Campaign - Press Release

For more information regarding stormwater and the NPDES Phase II Regulations visit the MRSC stormwater page or visit the Department of Ecology.