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Public Notice
Water Quality

On Nov. 2, 2022, the public comment period begins for the proposal to issue Arizona Pollutant Discharge Elimination System (AZPDES) renewal permit number AZ0022152 to the United States Department of the Interior, National Park Service, Grand Canyon National Park for the South Rim Wastewater Treatment Plan located in Coconino County, Arizona. The comment period ends  Dec. 1, 2022.

Public Notice Information

Public Notice No. 22-26

Published in: Williams-Grand Canyon Newsaper on Nov. 2, 2022

AZPDES Permit No. AZ0022152

ADEQ proposes to issue an AZPDES renewal permit to discharge pollutants to Waters of the United States to the following applicant, subject to certain effluent limitations and special conditions:

Permittee

United States Department of the Interior
National Park Service, Grand Canyon National Park

Facility Information

The United States Department of the Interior, National Park Service, Grand Canyon National Park applied for a renewal AZPDES permit for the proposed discharge of up to 0.75 million gallons per day (mgd) of treated domestic wastewater from the South Rim Wastewater Treatment Plant (WWTP) to the Bright Angel Wash in the Colorado – Grand Canyon River Basin in Township 31 N, Range 2 E, Section 26, in Coconino County, Arizona. The South Rim WWTP is a federally owned treatment works that receives domestic wastewater from residential, commercial, and industrial sources in Grand Canyon National Park and Grand Canyon Village. Sludge generated at the facility and received from off-site is treated by aerobic digestion and drying beds to Class B pathogen reduction, then transported by truck to the South Rim Lagoons.

Review Documents

Original Published Public Notice | View/Download >
Draft Permit | View/Download >
Draft Fact Sheet | View/Download >

You may also review the above documentation in person at the ADEQ Record Center | Learn How >

Public Comment Period 

Dates: Nov. 2, 2022 – Dec. 1, 2022

Comments may be submitted as follows:
     By Email | Send Email > 
     By Mail (Must be postmarked or received by Dec. 1, 2022):

       ADEQ
       Corin Hammond
       Water Quality Division
       1110 W. Washington St.
       Phoenix, AZ  85007