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NPDES Stormwater Permit for City of Nampa 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 Nampa MS4 in Idaho.

  • Permit number: IDS028126
  • Effective date: February 1, 2021
  • Permit expires: January 31, 2026

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