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Stormwater Pollution Prevention

We work with businesses to keep pollution out of the environment with Best Management Practices (BMPs). Pollution includes dirt, animal waste, trash, oil, soapy water, and chemicals.

When it rains, water picks up what it touches, including pollution. Polluted stormwater is the leading threat to Washington’s environment, especially its waters, because pollutants are not removed from stormwater.

2021 Stormwater Pollution Prevention Manual

For commercial, multifamily, and residential properties - best practices for preventing pollution.

Business best practices to reduce pollution, liability, and risk

For commercial, industrial, agricultural, public, and multifamily residential properties - best practices to reduce pollution, liability, and risk.

How to prevent pollution at home

Best practices to prevent pollution at your home.

Additional resources for reducing pollution

For businesses- resources about preventing spills, spill clean up, catch basin inserts, and more!

Pollution Prevention Assistance Program

We offer free assistance to help businesses find and fix potential pollution issues.

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