Minor Permit Revisions / Notifications of Change

The District has received minor permit revisions and/or notices of facility change applications listed on this page.

Minor permit revisions may only be used for those changes at a source that satisfies all of the following:

  • Do not violate any applicable requirement
  • Do not involve substantive changes to existing monitoring, reporting, or recordkeeping requirements in the permit
  • Do not require or change a case-by-case determination of an emission limitation or other standard, or a source-specific determination of ambient impacts, or a visibility or increment analysis
  • Do not seek to establish or change a permit term or condition for which there is no corresponding underlying applicable requirement and that the source has assumed in order to avoid an applicable requirement to which the source would otherwise be subject
  • Are not modifications under any provision of Title I of the clean Air Act (1990) that would result in a significant net emissions increase of any pollutant subject to regulation
  • Are not modifications under the Pinal County Hazardous Air Pollutant Program
  • Are not changes in fuels not represented in the permit application or provided for in the permit
  • The increase in the sources' potential to emit for any regulated pollutant is not significant
  • Are not required to be processed as a significant revision

Facility changes are allowed without a permit revision if all of the following apply:

  • Changes are not modification under Title 1 of the Clean Air Act or major modifications
  • Changes do not exceed the emission allowed under the permit
  • Changes do not violate any applicable requirement or trigger additional requirements
  • Changes meet all the requirements of a minor permit revision
  • Changes do not contravene federally enforceable permit terms and conditions

The application packages and associated permit revisions are available for inspection at the offices of the Pinal County Air Quality Control District, 85 N Florence Street, Florence, AZ during the hours of 8 am to 4:30 pm, Monday through Friday, excluding Holidays. Any questions regarding the permit revisions may be directed to the District at 520-866-6929.

Permit Number
Source Location
Type of OperationPermit Changes
The Scotts CompanyB31280.R01October 24, 202214419 N. White & Parker Road
Maricopa, AZ 85138
Fertilizer Mixing & PackagingEquipment changes & additions
Holcim - SWR, Inc.B31305.R03November 8, 202239401 N. Schnepf Road
Queen Creek, AZ 85140
Crushing & Screening Operations  

Change in ownership and changes to equipment

Nikola Corporation  
January 3, 2023

680 E. Houser Road
Coolidge, AZ 85128

Electric Semi-Truck

Manufacture & Assembly

Addition of emergency generator
Fisher Sand & Gravel Co. (Queen Creek Plant)C3149.R02January 19, 2023Section 15, Township 2 South, Range 9 East, Queen Creek, AZHot Mix Asphalt PlantAddition to two natural gas-fired generators
Hanson Aggregates LLC (Apache Junction Plant #31)
February 17, 20232941 W. 37th Ave., Apache Junction, AZ 85120
Concrete Batch Plant
Addition of wet batch plant process powered by a generator set
Arizona Public Service Company (Saguaro Power Plant)
February 21, 2023Section 15, Township 10 South, Range 10 East, Red Rock, AZ
Power Plant
Addition of an emergency generator
Global Water - Santa Cruz Water Company, Inc.
March 20th, 2023
680 East Houser Road, Coolidge, AZ 85128
Water Lift Station
Replacement of Emergency Generator
Gold Bond Building Products, LLC (Feldman Quarry)
May 04, 20231103 S Highway 77, Dudleyville, AZ 85192
Crushing & Screening Operations
Finalization of Process Generators
Marana Aerospace Solutions
June 20, 202324641 East Pinal Air Park RoadAircraft Maintenance, Repair, and Overhaul
Change to Buildings acting as Paint Booths
Bayer Southern Production Co., LLCB31404.R01July 5, 202315790 Highway 87, Eloy, AZ 85131Cotton GinningFan & Baghouse Replacement, Central Vacuum System Addition
Lucid USA, Inc.C31380.R02July 14, 2023317 South Thornton RoadVehicle Manufacturing SiteAddition of Emergency and Non-Emergency Use Generators
Arizona Department of CorrectionsB31376.R01August 3, 20231305 E. Butte Avenue, Florence, AZCorrectional InstitutionUpdate to equipment list to reflect current facility operations. 
Hanson Aggregates LLCB31363.R01August 7, 20231590 N. Nafziger RdCrushing & Screening and Concrete Batch PlantGenerator Removed, Addition of Material Handling Equipment and Fuel Storage Tank