Ecology Stormwater General Permit Publications



Municipal Stormwater Permit

Illicit Discharge Detection and Elimination

Public Education and Outreach

Runoff Control for New Development, Redevelopment, and Construction Sites

Secondary Permittees

Permit Coverage and Timelines


Construction Stormwater Permit

Construction Stormwater General Permit Focus Sheet

How to do Stormwater Monitoring: A guide for construction sites

Industrial Stormwater Permit


Applying for an Industrial Stormwater Permit

Guidance to Reduce Zinc in Industrial Stormwater

Developing a Stormwater Pollution Prevention Plan (SWPPP)

Log Yards

Stormwater Management Manuals

Stormwater Sampling

Vehicle Recyclers

If you are not able to download documents that are provided on this page, call Ecology's stormwater request line at (360) 407-7156 to request a copy.