Repository of Documents

Washington

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Water Quality Standards for Surface Waters of the State of Washington, Chapter 173-201A WAC (PDF) (287 K)
Sediment Management Standards, Chapter 173-204 (PDF) (240 K)
Federal Regulations, 40 CFR 131.36: Toxics criteria for those states not complying with Clean Water Act section 303(c)(2)(B). This federal regulation establishes water quality criteria for certain toxic pollutants. The regulation is also known as the National Toxics Rule.