PUBLIC NOTICE | Proposal to Renew Air Quality Dust Action General Permit for Maricopa County

ADEQ) has reached a preliminary determination and is proposing to renew the Air Quality Dust Action General Permit for Maricopa County. General Permits are a type of permit that applies to a class of sources; consequently, this revision may affect multiple sources throughout Maricopa County. This permit contains requirements from the Arizona Revised Statute 49-457.05, the Maricopa County Rule 310.01, and applicable regulations from Maricopa County Codes.


Facilities permitted under the proposed Maricopa County Dust Action General Permit may emit particulate matter with aerodynamic diameter less than 10 microns (PM10). The Dust Action General Permit identifies a series of Best Management Practices (BMPs) for specific dust generating operations. When ADEQ’s Maricopa County Dust Control Forecast predicts that a day is at high risk for dust generation, dust generating operations that are not already required to control dust through a permit issued by ADEQ or the Maricopa County Air Quality Department are expected to choose and implement at least one BMP to reduce or prevent PM10 emissions.

Review Documents

Original Published Public Notice | View/Print > 
Draft Dust Action General Permit | View >

The draft permit is available for review in person at:

  • ADEQ Record Center in Phoenix | Learn More >
  • ADEQ Southern Regional Office
    400 W. Congress Street, Suite 433
    Tucson, Arizona 85701

Public Comment Period 

Dates: Oct. 6, 2021 - Nov. 4, 2021

You have an opportunity to submit written comments on the renewal permit. Written comment shall include the name, mailing address, signature of commenter and/or their agent or attorney and shall clearly set forth reasons why the permit should or should not be issued. Grounds for comment are limited to whether the permit renewal meets the criteria for issuance spelled out in the state air pollution control laws or rules.

Submit comments as follows:

     Email | Send Email >
     Mail (Must be postmarked by Nov. 4, 2021:

       Balaji Vaidyanathan
       Facility Emissions Control Manager
       1110 W. Washington Street, 3415A-1
       Phoenix, AZ  85007 

People who file comments on the permit will have the right to appeal the final decision as an appealable agency action to the Office of Administrative Hearing (OAH) pursuant to §41.1092.03, and the appeal must be filed within 30 days after the issuance of the final decision.  The OAH may sustain, modify or reverse the final decision.