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NPDES Stormwater Permit for City of Lewiston and Lewis-Clark State College MS4s in Idaho

Below are EPA's National Pollutant Discharge Elimination System (NPDES) municipal separate storm sewer system (MS4) permit and supporting documents for the City of Lewiston and Lewis-Clark State College in Idaho.

Permit number: IDS028061
Effective date: November 1, 2020

Permit expires: September 30, 2025


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