← All StatesWashington Construction
WA — Stormwater Compliance
Washington Construction
Stormwater Inspections
Washington's Construction Stormwater General Permit is administered by the Department of Ecology and was reissued in November 2025, effective January 2026 through December 2030. The permit requires a 60-day advance application and turbidity monitoring at discharge points. Washington's high rainfall in western regions and sensitive salmon-bearing streams require stringent erosion and sediment control measures.
Permit Details
Permit Designation
Construction Stormwater General Permit
Issuing Authority
Washington State Department of Ecology
Key Inspection Requirements
✓SWPPP must be prepared and implemented before land disturbance
✓Application required at least 60 days before discharging stormwater from construction
✓Inspections every 7 days and within 24 hours of a 0.5-inch or greater rainfall event
✓Compliance with the Stormwater Management Manual for Western or Eastern Washington
✓Turbidity monitoring required at discharge points
How StormGuard Pro Helps in Washington
- Auto-generates PDF inspection reports matched to the Construction Stormwater General Permit template
- AI-powered photo analysis identifies 17+ BMP types during field inspections
- Tracks 7-day precipitation and triggers post-storm inspection alerts automatically
- Corrective action tracking with deadline reminders per WA permit requirements
- Shareable report links for project owners, regulators, and the Washington State Department of Ecology
Ready to Simplify WA Inspections?
See how StormGuard Pro handles Washington construction stormwater compliance with a free demo.
Request a Demo →Start Your Washington Stormwater Inspections Today
Join contractors and consultants across Washington using StormGuard Pro to stay compliant with Construction Stormwater General Permit requirements.
Request a Free Demo →