We know that stormwater permits can be overwhelming and confusing. The Washington Stormwater Center was created to help you be successful in stormwater management and pollution prevention. We provide all the resources and tools you need to be in compliance with your Municipal, Industrial or Construction Stormwater Permits.
Whether you already have a permit or need to obtain one, we can help.
Can't find what you're looking for? Need more hands-on assistance? Please call us at (253) 445-4505 or 855-WASTORM (855-927-8676)
What's Your Permit?
Municipal stormwater general permits regulate discharges from municipal stormwater systems. These drainage systems are separated from sanitary sewer systems and are owned or operated by cities, counties, and other public entities.
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. In Washington, many industrial businesses are required to monitor, measure, and reduce stormwater pollution leaving their site.