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Public Notice
Water Quality

On June 24, 2022, the public comment period begins for the proposed modification to Arizona Pollutant Discharge Elimination System (AZPDES) general permit for small municipal separate storm sewer systems (MS4s). The comment period ends July 25, 2022.

Public Notice Information

Permit Information:

This general permit authorizes stormwater discharges of pollutants from MS4s in Arizona to protected surface waters.1 State requirements for discharges to non-WOTUS protected surface waters are enforceable solely by ADEQ. 

Review Documents

Draft Permit | View/Print > 
Draft Permit showing proposed changes | View/Print >

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

Public Comment Period

Dates: June 24, 2022 – July 25, 2022

Comments may be submitted as follows:

     By Email | Send Email >
     By Mail (Must be postmarked or received by July 25, 2022):

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

If sufficient public interest is demonstrated during the public comment period, ADEQ may announce and hold a public meeting.

1 Authorized under the AZPDES program, in compliance with the provisions of the Arizona Revised Statutes, Title 49, Chapter 2, Article 3.1, the Arizona Administrative Code, Title 18, Chapter 9, Article 9, and Chapter 11, Article 1; and the Clean Water Act as amended (33 U.S.C. 1251 et seq.)