On Sept. 28, 2022, the public comment period begins for the proposal to issue an Arizona Pollutant Discharge Elimination System (AZPDES) Permit to Grand Canyon National Park for the North Rim Wastewater Treatment Plant (WWTP) located in Coconino County, Arizona. The comment period ends Oct. 28, 2022.
Public Notice Information
AZPDES Permit No. AZ0110426
United States Department of Interior, National Park Service, Grand Canyon National Park (Grand Canyon National Park) applied for a renewal AZPDES permit for the proposed discharge of up to 0.15 million gallons per day (mgd) of treated domestic wastewater from the North Rim WWTP to the Transcept Canyon in Coconino County, Arizona. The WWTP is a federally owned treatment works that receives domestic wastewater from residential and commercial sources from the North Rim of the Grand Canyon National Park, including the visitor center, lodging, restaurant, campground, laundry, and maintenance. Sludge is dried and transported by truck to an off-site storage lagoon at the South Rim biosolids disposal site.
United States Department of Interior
National Park Service, Grand Canyon National Park
North Rim WWTP is located at the North Rim of Grand Canyon National Park, Arizona.
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Public Comment Period
Dates: Sept. 28, 2022 – Oct. 28, 2022
Comments may be submitted as follows:
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By Mail (Must be postmarked or received by Oct. 28, 2022):
Water Quality Division
1110 W. Washington St.
Phoenix, Arizona 85007
A public hearing request must be in writing and must include the reasons for such request.