PUBLIC NOTICE | Comment Period Extended | Proposed AZPDES Renewal Permit for Superior Mine in Pinal County

Public Notice No. 21-39

Published in: Superior Sun and Silver Belt on March 9, 2022 & April 13, 2022

AZPDES Permit No. AZ0020389

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


Resolution Copper Mining, LLC

Facility Information

Resolution Copper Mining, LLC — Superior Mine
102 Magma Heights
Superior, AZ 85173

Resolution Copper Mining, LLC applied for a renewal AZPDES permit for discharge of mine site stormwater from Outfall 001 and treated mine drainage water from Outfall from the Resolution Copper Mining, LLC – Superior Mine. The discharge for both Outfall 001 and 002 is to an unnamed wash, tributary to Queen Creek (Headwaters to Town of Superior Wastewater Treatment Plant outfall) in the Middle Gila River Basin in Township 2 S, Range 12 E, Section 4, in Pinal County, Arizona.

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 >

Extended Public Comment Period 

Dates: March 9, 2022 – May 31, 2022

Comments may be submitted as follows:
     By Email | Send Email >   
     By Mail (Must be postmarked or received by May 31, 2022):

       Swathi Kasanneni
       Water Quality Division
       1110 W. Washington St.
       Phoenix, Arizona 85007

     At Virtual Public Hearing | April 11, 2022 at 6 p.m. | Register via GoToWebinar > 
       After registering, you will receive a confirmation email containing information about joining the webinar.