PUBLIC NOTICE | Proposed AZPDES Permit Renewal (AZ0023442) for the City of Phoenix - Val Vista Water Treatment Plant

Public Notice No. 18-33

Published in Arizona Business Gazette on Feb. 21, 2019

AZPDES Permit No. AZ0023442

ADEQ proposes to issue an Arizona Pollutant Discharge Elimination System (AZPDES) renewal permit to discharge pollutants to Waters of the United States to the following applicant, subject to certain effluent limitations and special conditions:


City of Phoenix

Mailing Address

2474 S. 22nd Avenue, Building 31
Phoenix, AZ 85009

Facility Information

Val Vista Water Treatment Plant - Solids Handling Facility
3200 East McDowell Road
Mesa, AZ 85213

The City of Phoenix applied for a renewal AZPDES permit for the proposed discharge of up to 5.3 million gallons per day (mgd) of partially-treated residuals from the pre-sedimentation and sedimentation basins and filter backwash water from the Val Vista Water Treatment Plant Solids Handling Facility to the South Canal (Phoenix area canal) in Maricopa County, Ariz. The Val Vista Water Treatment Plant is an industrial water treatment plant in Mesa. Treatment in the Solids Handling Facility consists of equalization basins, chemical conditioning, gravity thickeners, lagoons, drying beds, and centrifuge dewatering. Discharge will only occur when the Solids Handling Facility is no longer able to return centrate to the plant process due to the acrylamide limit and the storage capacity has been exceeded.

Review Documents

Original Published Public Notice | View/Print >
Draft Permit | View >
Draft Fact Sheet | View >

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

Public Comment Period 

Dates: Feb. 21, 2019 – March 22, 2019

Comments may be submitted as follows:
     By Email | Send Email > 
     By Mail (Must be postmarked or received by March 22, 2019):

       Devin McAllister
       Water Quality Division
       1110 W. Washington Street
       Phoenix, AZ  85007