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Public Notice
Water Quality

On Oct. 14, 2022, the public comment period begins for the decision to issue a State 401 Water Quality Certification to National Park Service, Grand Canyon National Park, for the Trans-Canyon Water Distribution Pipeline in Coconino County, Arizona. The comment period ends on Nov. 14, 2022.

Public Notice Information

Pursuant to the Clean Water Act (CWA) Section 401 and in accordance with Arizona Administrative Code R18-1-401, the ADEQ Director intends to issue a State 401 Water Quality Certification to the following applicant:

Applicant Information

National Parks Service, Grand Canyon National Park

Project Name: Trans-Canyon Water Distribution Pipeline

Project Location: Coconino County, Grand Canyon National Park

ADEQ LTF No.: 96416

Review Documents

Original Published Public Notice | View/Download >
Draft Clean Water Act 401 Certification | View/Download >

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

Public Comment Period 

Dates: Oct. 14, 2022 – Nov. 14, 2022

Comments may be submitted as follows:
     By Email | Send Email > 
     By Mail (Must be postmarked or received by Nov. 14, 2022):

       Rosi Sherrill
       Surface Water Section Project Manager
       1110 W. Washington St.
       Phoenix, AZ  85007