On Dec. 11, 2024, the comment period begins for the proposal to modify an Arizona Pollutant Discharge Elimination System (AZPDES) permit to Salt River Project (SRP) for its Santan Generating Station located in Maricopa County, Arizona. The comment period ends Jan. 10, 2025.

AZPDES Permit No.: AZ0023558

Permittee:

Salt River Project (SRP)

Facility:

Santan Generating Station
1005 S. Val Vista Dr.
Gilbert, Arizona 
Maricopa County

This permit modification authorizes the facility to discharge cooling tower blowdown, heat recovery steam generator blowdown, other low-volume wastes, stormwater, and non-process raw water to the Western Canal (a Phoenix Area Canal) or an Arizona Department of Transportation stormwater drainage system and eventual tributary to the Salt River.

Review Documents: 

• Original Published Public Notice | View >
• Draft Permit | View >
• Statement of Basis for Modification | View >
• Or you can also review these documents in person at the ADEQ Record Center | Learn How >

Public Comment Period:

Dates: Dec. 11, 2024 – Jan. 10, 2025

Comments may be submitted as follows:

• By Email | Email > 
• By Mail (Must be postmarked or received by Jan. 10, 2025):

ADEQ
Water Quality Division, Surface Water Protection

Attn:  Julia Rowe

1110 W. Washington St.
Phoenix, AZ  85007

• At Virtual Public Hearing | Monday, Dec. 23, 2024  | 6 p.m. | View Details >