News & Analysis as of

Department of Ecology Stormwater Discharge Permits

Beveridge & Diamond PC

Washington Ecology Issues its New Industrial Stormwater General Permit, Effective January 1, 2025

Key Takeaways - What Is Happening? The Washington State Department of Ecology (Ecology) published its final 2025 Industrial Stormwater General Permit (ISGP), which authorizes the discharge of stormwater and certain...more

Schwabe, Williamson & Wyatt PC

Top Highlights of Washington’s Draft Industrial Stormwater Permit for Public Review

On May 15, the Washington State Department of Ecology (Ecology) released the draft Industrial Stormwater General Permit (Draft ISGP), fact sheet, and application for public comment. The public comment period is open from May...more

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