Concrete, Construction, CSGP, Inspections, Municipal, Washout, IDDE, Illicit Discharge
Document Author: Washington Stormwater Center
Municipal Stormwater Bulletin October 14, 2025
Construction Assistance Infographic
ISGP Assistance Infographic
Basic Building Block of the Industrial Stormwater General Permit
Note: this information was created for a now expired permit. Much of the information is still relevant but specifics should be verified with the current ISGP
