Posted On: Jun. 4th, 2026 - 03:01 pm
On June 5, 2026, the comment period begins for the proposal to renew an Arizona Pollution Discharge Elimination System (AZPDES) permit to the City of Mesa for its Phase I Municipal Separate Storm Sewer System (MS4) located in Maricopa County, Arizona. The comment period ends July 6, 2026.
AZPDES Permit No. AZS000004
Permittee:
City of Mesa
Facility:
City of Mesa Phase I MS4
Mesa, Arizona
Maricopa County
The City of Mesa applied for a renewal AZPDES permit for the proposed discharge of pollutants to Waters of the United States from the City of Mesa Phase I MS4, a publicly owned system of conveyances that collects and conveys stormwater and discharges directly to waters of the United States. The permit requires the City of Mesa to continue to implement and maintain a Stormwater Management Program designed to reduce the discharge of pollutants to the maximum extent practicable. The permit establishes measurable criteria to assess the efficacy of control measure design and implementation.
Review Documents:
Public Comment Period:
Dates: June 5, 2026 – July 6, 2026
Comments may be submitted as follows:
- By Email | Send Email >
- By Mail (Must be postmarked or received by July 6, 2026):
ADEQ
Water Quality Division, Surface Water Protection Permits
Attn: Corin Hammond
1110 W. Washington St.
Phoenix, AZ 85007
