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:
United States Department of the Interior
National Park Service, Grand Canyon National Park
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.
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Public Comment Period
Dates: Nov. 2, 2022 – Dec. 1, 2022
Comments may be submitted as follows:
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By Mail (Must be postmarked or received by Dec. 1, 2022):
Water Quality Division
1110 W. Washington St.
Phoenix, AZ 85007