EPA Air · by county
Air-emissions sources in Pinal County, Arizona
- 31Facilities
Every stationary source in Pinal County, Arizona that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Pinal County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Pinal County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2025 — inspections 4
- 2024 — inspections 8
- 2023 — inspections 16
- 2022 — inspections 9
- 2020 — inspections 3
- 2019 — inspections 15
- 2017 — inspections 13
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| APACHE JUNCTION LANDFILL | Major source | No |
| APS - SAGUARO POWER PLANT | Major source | No |
| APS-SUNDANCE ENERGY (FRMLY PPL SUNDANCE) | Major source | No |
| ARIZONA ENVIRONMENTAL CONTAINER | Major source | No |
| ARIZONA OFFICE | Synthetic minor source | No |
| ARIZONA STEEL FINISHING, LLC | Synthetic minor source | No |
| ASARCO- RAY MINE | Major source | No |
| BCS ENTERPRISES | Minor source | No |
| BIOSPHERE II- ENERGY CENTRE | Minor source | No |
| CACTUS LANDFILL | Major source | No |
| CASA GRANDE SOLID WASTE LANDFILL | Major source | No |
| COOLDGE GENERATING STATION | Major source | No |
| CSW CONTRACTORS | Minor source | No |
| DESERT STONE & MATERIALS CO | Minor source | No |
| DURHAM REGIONAL LANDFILL | No | |
| EAGLE MILLING | Synthetic minor source | No |
| EL PASO NATURAL GAS- CASA GRANDE COMP | Major source | No |
| EL PASO NATURAL GAS- ORACLE COMP | Major source | No |
| FRITO LAY | Major source | No |
| GILA ROCK PRODUCTS LLC | Synthetic minor source | No |
| HEXCEL CORP | Major source | No |
| MARQUEZ PIT | Synthetic minor source | No |
| MESA FULLY FORMED INC | Major source | No |
| MONSANTO AG PRODUCTS LLC(DELTA & PINE) | Synthetic minor source | No |
| NATIONAL VITAMIN CO. | Synthetic minor source | No |
| PINAL FEEDING | Synthetic minor source | No |
| PROWALL BUILDING PRODUCTS, INC. | Major source | No |
| REPUBLIC PLASTICS LP | Major source | No |
| SRP - DESERT BASIN GENERATING STATION | Major source | No |
| SUNSHINE GIN (L/S & S/S)ANDERSON CLAYTON | Minor source | No |
| TOWN OF SUPERIOR | Major source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.