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Draft NPDES Stormwater Permit for Washington Department of Transportation MS4 in Washington

EPA accepted public comments on this draft permit from April 1 through October 27, 2021.

EPA is proposing to issue a National Pollutant Discharge Elimination System (NPDES) municipal separate storm sewer system (MS4) permit for the Washington Department of Transportation's MS4 that discharges to receiving waters located on tribal trust lands within the Puyallup Reservation.

Permit number: WAS026743

The draft permit and supporting documents are available for review below.

Draft NPDES Stormwater Permit, Washington Dept. of Transportation (WSDOT) MS4, Washington, #WAS026743 (pdf) (April 2021)
Proposed stormwater permit.
NPDES Permit Fact Sheet, City of Tacoma MS4 (#WAS026689), Pierce County MS4 (#WAS026875), WSDOT MS4 (#WAS026743) (pdf) (April 2021)
Technical basis for three stormwater permits.