On Thursday, Nov. 30, 2017, the public comment period began for the proposed renewal of an Arizona Pollutant Discharge Elimination System (AZPDES) Permit for National Park Service's South Rim Wastewater Treatment Plant.

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Comments may be submitted as follows:

     By Email | Send Email > 
     By Mail: (Must be postmarked or received by Dec. 30, 2017)

       ADEQ
       Richard Mendolia
       Water Quality Division
       1110 W. Washington Street
       Phoenix, AZ  85007