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Public Notice
Water Quality

On Oct. 24, 2022, the public comment period begins for the proposal to modify Arizona Pollutant Discharge Elimination System (AZPDES) permit number AZS000002 to Pima County for the Phase I Municipal Separate Storm Sewer System (MS4). The comment period ends Nov. 23, 2022.

Public Notice Information

Public Notice No. 22-21

Published in: Arizona Daily Star on Oct. 24, 2022

AZPDES Permit No. AZS000002

ADEQ proposes to modify the county's permit to incorporate 24-hour emergency non-compliance reporting for spills, which may be harmful to public health and the environment.


Pima County


Municipal Separate Storm Sewer System (MS4)

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: Oct. 24, 2022 – Nov. 23, 2022

Comments may be submitted as follows:
     By Email | Send Email > 
     By Mail (Must be postmarked or received by Nov. 23, 2022):

       Rosi Sherrill
       Water Quality Division
       1110 W. Washington St.
       Phoenix, AZ  85007