A public comment period for Reopening No. 113040 was open December 31, 2025, to February 2, 2026. ADEQ has reopened the comment period.

On May 27, 2026, a new comment period begins for the proposal to issue a significant revision to an Air Quality Control Permit for Arizona Electric Power Cooperative, Inc. (AEPCO) at the Apache Generating Station in Cochise County, Arizona. The comment period ends July 2, 2026.

Class I Air Quality Permit Reopening No.: 113040

Significant Revision No.: 99677

Permittee:

AEPCO

Facility: 

Apache Generating Station
3525 North Highway 191 South
Cochise, Arizona 85606

The facility is subject to the requirements of federal and state clean air regulations. The facility emits the following air contaminants: coarse particulate matter with diameters 10 micrometers or less (PM10), fine particulate matter with diameters 2.5 micrometers or less (PM2.5), volatile organic compounds (VOCs), nitrogen oxides (NOX), sulfur dioxide (SO2), carbon monoxide (CO) and hazardous air pollutants (HAPs).

Review Documents:

• Original Published Public Notice | View Notice > 
• Draft Permit | View Permit >  
• Draft Technical Support Document (TSD) | View TSD > 
• Additional Information | View Info > 
• Reopening Order | View Order > 
• Emissions Calculations | View >
• In person at:
  • ADEQ Record Center | Learn How >
  • or City of Willcox Clerk’s Office, 101 S. Railroad Avenue, Suite B, Willcox, Arizona 85643

Public Comment Period:

Dates: May 27, 2026 – July 2, 2026

Comments may be submitted as follows:

•      By Email | Send Email >
•      By Mail (Must be postmarked or received by July 2, 2026):

ADEQ
Air Quality Division, Air Permits
Attn: Karla Murietta
1110 W. Washington St.
Phoenix, AZ  85007

• At Virtual Public Hearing | June 30, 2026 | 5 p.m. | View Details >

EPA Petition Process:

This permit is subject to review by EPA pursuant to 40 CFR 70.8 (Code of Federal Regulations) and Arizona Administrative Code R18-2-307. If EPA does not object to the issuance of this permit, you may petition to EPA within 60 days after the expiration of EPA's 45-day review period. A petition shall be based only on objections to the permit that were raised with reasonable specificity during the public comment period, unless the petitioner demonstrates that it was impracticable to raise such objections within such period, or unless the grounds for such objection arose after such period. Any person who petitions to EPA pursuant to 40 CFR 70.8(d) shall notify ADEQ by certified mail within 10 days after such petition.

Comments may be submitted to EPA according to the process for Title V Petitions | Learn More >

On May 26, 2026, the public comment period begins for the proposal to designate the East Verde Estates community located in Gila County, Arizona, as a Nitrogen Management Area. The comment period ends on Sept. 23, 2026.

Details: 

ADEQ is proposing to designate the East Verde Estates community, serviced by the Payson Water Company – East Verde Estates community water system, as a Nitrogen Management Area (NMA).¹ The designation serves to regulate and reduce existing or potential nitrate groundwater contamination caused by sources of nitrogen that are not monitored after permit issuance, primarily on-site wastewater treatment systems, also known as septic systems.

• Learn more about NMAs | View NMA Page >

Location:

East Verde Estates is located approximately six miles north of the town of Payson, off Arizona State Route 87.

Review Documents:

• Original Published Public Notice | View Notice > 
• NMA Designation Report | View Report >
• East Verde Estates NMA Fact Sheet | View FS >  
• In person at ADEQ Record Center | Learn How >

Public Comment Period:

Dates: May 26, 2026 – Sept. 23, 2026

Comments may be submitted as follows:

•      By Email | Send Email >
•      By Mail (Must be postmarked or received by Sept. 23, 2026):

ADEQ
Water Quality Division

Attn: Matt Narter

1110 W. Washington St.
Phoenix, AZ  85007

¹ Arizona Administrative Code R18-9-A317

On May 21, 2026, the comment period begins for the preliminary decision to issue a significant amendment to an Individual Aquifer Protection Program (APP) Permit to the City of Tucson, Tucson Water Department, for the South Houghton Area Recharge Project (SHARP) located in Pima County, Arizona. The comment period ends June 19, 2026.

APP Permit No.: 511628

The requirements in this permit will allow the permittee to comply with the two key requirements of the APP: 1) meet Aquifer Water Quality Standards at the Point of Compliance; and 2) demonstrate Best Available Demonstrated Control Technology.

Permittee: 

City of Tucson, Tucson Water Department

Facility: 

City of Tucson – SHARP
9900 E. Drexel Road
Tucson, Arizona 85747
Pima County

Review Documents:

• Original Published Public Notice | View Notice > 
• Draft Permit | View Permit >  
• Draft Executive Summary | View Summary >  
• In person at ADEQ Record Center | Learn How >

Public Comment Period:

Dates: May 21, 2026 – June 19, 2026

Comments may be submitted as follows:

•      By Email | Send Email >
•      By Mail (Must be postmarked or received by June 19, 2026):

ADEQ
Water Quality Division, Groundwater Protection
Attn: Wisam Abujaber
1110 W. Washington St.
Phoenix, AZ  85007

On May 21, 2026, the public comment period begins for the decision to issue a State 401 Water Quality Certification to Roadrunner Prospectors’ Club for the Roadrunner Prospectors’ Club Placer Mining project located in Yavapai County. The comment period ends on June 22, 2026.

Applicant: 

Les Glover, Roadrunner Prospectors' Club

Project Name: 

Roadrunner Prospectors’ Club Placer Mining

Project Location: 

Waters in Yavapai County

Review Documents:

• Original Published Public Notice | View Notice > 
• Draft Clean Water Act 401 Certification | View Cert >  
• In person at ADEQ Record Center | Learn How >

Public Comment Period:

Dates: May 21, 2026 – June 22, 2026

Comments may be submitted as follows:

•      By Email | Send Email >
•      By Mail (Must be postmarked or received by June 22, 2026):

ADEQ
Water Quality Division, Surface Water Section

Attn: Rosi Sherrill

1110 W. Washington St.
Phoenix, AZ  85007

On May 20, 2026, the comment period begins for the proposal to renew an Arizona Pollution Discharge Elimination System (AZPDES) permit to the U.S. Fish and Wildlife Service for the Willow Beach National Fish Hatchery located in Mohave County, Arizona. The comment period ends June 18, 2026.

AZPDES Permit No. AZ0000132

Permittee: 

U.S. Fish and Wildlife Services

Facility: 

Willow Beach National Fish Hatchery

25808 N. Willow Beach Road
, Willow Beach,
Arizona 86445

Mohave County

U.S. Fish and Wildlife Services applied for a renewal AZPDES permit for the proposed discharge of up to 8.64 million gallons per day (MGD) of treated domestic wastewater from the Willow Beach National Fish Hatchery to the Colorado River in Mohave County, Arizona. The facility is a flow-through fish hatchery drawing water from the Colorado River.

Review Documents:

• Original Published Public Notice | View Notice > 
• Draft Permit | View Permit >  
• Draft Fact Sheet | View FS >  
• In person at ADEQ Record Center | Learn How >

Public Comment Period:

Dates: May 20, 2026 – June 18, 2026

Comments may be submitted as follows:

•      By Email | Send Email >
•      By Mail (Must be postmarked or received by June 18, 2026):

ADEQ
Water Quality Division, Surface Water Protection Permits
Attn: Ashley Foster
1110 W. Washington St.
Phoenix, AZ  85007

On June 1, 2026, the comment period begins for the proposed Agricultural Best Management Practices (AgBMP) State Implementation Plan (SIP) Revision pertaining to the West Pinal County PM₁₀ Nonattainment Area (West Pinal). The comment period ends July 1, 2026.

The AgBMP program regulates fugitive emissions of PM₁₀ from agricultural activities in West Pinal. The proposed SIP revision consists of amendments to the AgBMP rules designed to improve the enforceability of the program.

Review Documents:

• Original Published Public Notice | View Notice > 
• West Pinal PM₁₀ Nonattainment Area AgBMP Rules SIP Revision | View Proposed SIP Revision >  
• In person at:
  • ADEQ Records Center | Learn How >
  • or Casa Grande Public Library, 449 N. Drylake Street, Casa Grande, AZ 85122

Public Comment Period:

Dates: June 1, 2026 – July 1, 2026

Comments may be submitted as follows:

• By Email | Send Email >
• By Mail (Must be postmarked or received by July 1, 2026):

ADEQ
Air Quality Division, Air Quality Improvement Planning
Attn: Steve Burr
1110 W. Washington St.
Phoenix, AZ  85007

• At Virtual Public Hearing | July 1, 2026, 2 p.m. | View Details & Register >

On May 18, 2026, the comment period begins for the proposed delegation agreement regarding the Town of Patagonia open burning permit issuance. The comment period ends June 17, 2026.

Review Documents: 

• Proposed Delegation Agreement (DA) for Town of Patagonia | View Proposed DA #EV26-0153 >
• On the Delegation Agreements Page | View Page >
• In person at ADEQ Record Center | Learn How >

Public Comment Period:

Dates: May 18, 2026 – June 17, 2026

Comments may be submitted as follows:

•      By Email | Send Email >
•      By Mail (Must be postmarked or received by June 17, 2026):

ADEQ
Air Quality Division, Permits
Attn: Balaji Vaidyanathan
1110 W. Washington St.
Phoenix, AZ  85007

On May 13, 2026, the comment period begins for the proposal to renew an Arizona Pollution Discharge Elimination System (AZPDES) permit to the Virgin River Domestic Wastewater Improvement District (DWID) for the Virgin River DWID Wastewater Treatment Plant located in Mohave County, Arizona. The comment period ends June 12, 2026.

AZPDES Permit No. AZ0023655

Permittee: 

Virgin River DWID

Facility: 

Virgin River DWID Wastewater Treatment Plant

3465 E. Beaver Dam Drive

Beaver Dam, Arizona 86432

Mohave County

The Virgin River DWID applied for a renewal AZPDES permit for the proposed discharge of up to 0.0366 million gallons per day (MGD) of treated domestic wastewater from the Virgin River DWID Wastewater Treatment Plant to the Virgin River in Mohave County, Arizona. The facility is a publicly-owned treatment works that receives domestic wastewater from residential and commercial sources in Beaver Dam. Sludge is hauled via tank truck to the Mesquite Wastewater Treatment Plant for additional processing and final disposal.

Review Documents:

• Original Published Public Notice | View Notice > 
• Draft Permit | View Permit >  
• Draft Fact Sheet | View FS >  
• In person at ADEQ Record Center | Learn How >

Public Comment Period:

Dates: May 13, 2026 – June 12, 2026

Comments may be submitted as follows:

•      By Email | Send Email >
•      By Mail (Must be postmarked or received by June 12, 2026):

ADEQ
Water Quality Division, Surface Water Protection Permits
Attn: Rachael Willis
1110 W. Washington St.
Phoenix, AZ  85007