COMMENT PERIOD ENDS | Proposed Modification of AZPDES Permit for Pima County MS4 Phase I

On Oct. 2, 2021, the public comment period ends for the proposed modification of Arizona Pollutant Discharge Elimination System (AZPDES) permit (AZS000002) coverage to Pima County for their Municipal Separate Storm Sewer System (MS4) Phase I. The public comment period began Sept. 2, 2021.

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