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Clean Water Act › Washington

The Clean Water Act is a United States federal statute enacted in 1972 to reduce levels of toxic substances in the nation's water supply and to prevent high levels of new contamination.  The CWA seeks to... more +
The Clean Water Act is a United States federal statute enacted in 1972 to reduce levels of toxic substances in the nation's water supply and to prevent high levels of new contamination.  The CWA seeks to accomplish its stated goals by preventing point and nonpoint pollution sources, assisting wastewater treatment facilities and maintaining wetlands. less -
Schwabe, Williamson & Wyatt PC

Washington Department of Ecology Proposes New Permitting Program for Projects that Alter or ‎Impact Waters of the State

Schwabe, Williamson & Wyatt PC on

On June 10, 2025, the Washington Department of Ecology (“Ecology”) published a CR-101 Preproposal Statement of Inquiry to develop a new permitting program for projects that could “alter” or “impact” waters of the state. The...more

Beveridge & Diamond PC

Washington’s Draft 2026 Construction Stormwater General Permit Out for Public Comment

Beveridge & Diamond PC on

Key Takeaways - What is Happening? The Washington State Department of Ecology (Ecology) published for public comment its proposed 2026 Construction Stormwater General Permit (CSWGP), which authorizes stormwater discharges...more

Schwabe, Williamson & Wyatt PC

Ports Must Control Stormwater Across Their Entire Footprint

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Washington State requires ports to control stormwater discharges across their entire footprint, though federal rules cover only certain port facilities. According to a recent decision by the Ninth Circuit Court of Appeals,...more

Beveridge & Diamond PC

Ecology Proposes Significant—And Legally Vulnerable—Changes to Washington’s Industrial Stormwater General Permit

Beveridge & Diamond PC on

Key Takeaways - What is Happening? The Washington State Department of Ecology (Ecology) published for public comment its proposed 2025 Industrial Stormwater General Permit (ISGP), which authorizes the discharge of...more

Schwabe, Williamson & Wyatt PC

Clean Water Act Assurances Under Attack

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Earthrise Serves EPA with Notice of Intent to Sue, Challenging Washington’s Forest Practices Rules Nearly 20 years ago, the Washington Forest Practices Board adopted forest practices rules intended to address water quality...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Section 401 Clean Water Act/Water Quality Standards: Washington State Conditions Certification for Dams' Operations on Temperature...

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The Washington Department of Ecology (“WDE”) on May 7th issued Clean Water Act Section 401 water quality certifications for eight federal dams conditioned on compliance with certain temperature water quality standards. The...more

Perkins Coie

Washington Pollution Control Hearings Board Rules Ecology Exceeded its Authority Under CWA, Invalidates NPDES Permit Condition

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Washington state’s Pollution Control Hearings Board (PCHB) ruled on February 26 that the Washington Department of Ecology (Ecology) exceeded its Clean Water Act (CWA) authority by inserting a permit condition in the Aquatic...more

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