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NPDES Stormwater Permit for City of Middleton MS4 in Idaho

Below are EPA's National Pollutant Discharge Elimination System (NPDES) municipal separate storm sewer system (MS4) final permit and supporting documents for the City of Middleton, Idaho, within the Nampa Urbanized Area.

  • Permit number: IDS028100
  • Effective date: October 1, 2020
  • Permit expires: September 30, 2025

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