Updated stormwater permit issued to WSDOT

May 20, 2014

The state Department of Ecology has issued an updated stormwater permit to the Washington State Department of Transportation to continue to protect water quality.

The permit regulates stormwater runoff from highways and transportation facilities in urbanized areas. This helps manage stormwater runoff and protect water quality. If not treated properly, stormwater can degrade water quality, carry contaminants into downstream waters, and harm sensitive fish and wildlife habitats.

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