EPA Air · by county
Air-emissions sources in Pima County, Arizona
- 48Facilities
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Every stationary source in Pima 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.
Every source’s record in Pima County
Each of the 30 operating major, synthetic minor and minor sources in Pima County, Arizona has a record page: every source in Pima County, A to Z.
By emissions classification in Pima 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 Pima 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.
- 2026 inspections 5
- 2025 inspections 5
- 2024 inspections 16
- 2023 inspections 5
- 2022 inspections 8
- 2021 inspections 6
- 2020 inspections 8
- 2019 inspections 8
- 2018 inspections 11
- 2017 inspections 7
Stack tests in Pima County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2025 stack tests 3
- 2024 stack tests 7
- 2023 stack tests 8
- 2022 stack tests 13
- 2021 stack tests 15
- 2020 stack tests 10
- 2019 stack tests 6
- 2018 stack tests 3
- 2017 stack tests 5
Inspections in Pima County, year by year · Stack tests in Pima County, year by year
Other counties in Arizona
Every county in the state with at least three sources on file.
- Apache County 10
- Cochise County 11
- Coconino County 16
- Gila County 10
- Graham County 4
- La Paz County 5
- Maricopa County 256
- Mohave County 22
- Navajo County 17
- Pinal County 31
- Santa Cruz County 3
- Undetermined County 12
- Yavapai County 23
- Yuma County 15
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| AIR LIQUIDE CORP | Minor source | No |
| ASARCO PIMA MINE_(MISSION MINE) | Major source | No |
| ASARCO,INC - SAN XAVIER MINE | Major source | No |
| BRUSH CERAMIC PRODUCTS | Minor source | No |
| CALPORTLAND - RILLITO CEMENT PLANT | Major source | No |
| CATERPILLAR, INC. - TUCSON PROVING GROUNDS COMPLEX | No | |
| CEMEX CONSTRUCTION MATERIALS SOUTH LLC - APEX PLANT | No | |
| CHEVRON USA | Synthetic minor source | No |
| CITY OF TUCSON - LOS REALES LANDFILL | Major source | No |
| DAVIS MONTHAN AIR FORCE BASE - ELECTRIC, GAS, AND SANITARY SERVICES | No | |
| DAVIS MONTHAN AIR FORCE BASE - HEALTH SERVICES | No | |
| DAVIS MONTHAN AIR FORCE BASE - NATIONAL SECURITY AND INTERNATIONAL AFFAIRS | No | |
| DAVIS MONTHAN AIR FORCE BASE - REAL ESTATE | No | |
| DAVIS MONTHAN AIR FORCE BASE - SPECIAL WAREHOUSING AND STORAGE | No | |
| DAVIS MONTHAN AIR FORCE BASE - TRANSPORTATION BY AIR | No | |
| DAVIS-MONTHAN AFB- 355 CES/CEV | Synthetic minor source | No |
| DICKENS QUALITY DEMOLITION | Minor source | No |
| EL PASO NATURAL GAS | Major source | No |
| EL PASO NATURAL GAS COMPANY- VAIL COMPRESSOR STATION | Major source | No |
| ENVIRONMENTAL STRATEGIES INC | Minor source | No |
| FREEPORT-MCMORAN SIERRITA | Major source | No |
| GRANITE CONSTRUCTION COMPANY - SWAN ROAD PLANT | No | |
| GRANITE CONSTRUCTION COMPANY - TANGERINE ROAD FACILITY | No | |
| KIMBERLY WOODS | Minor source | No |
| LEARJET INC | Major source | No |
| MISSION LINEN SUPPLY | No | |
| PIMA CO SEWAGE PLANT | Synthetic minor source | No |
| PIMA CO WASTEWATER RECLAMATION DEPT | Major source | No |
| POLY PRINT | Synthetic minor source | No |
| POLY PRINT, INC. | No | |
| RAYTHEON | Minor source | No |
| S.R. SMITH, LLC | Major source | No |
| SFPP,LP - TUCSON TERMINAL | Major source | No |
| SIERRA MINING & CRUSHING LLC | No | |
| SOUTHGATE COMMUNITY DEVELOPMENT | Minor source | No |
| SOUTHWEST SOIL REMEDIATION INC | Minor source | No |
| TANGERINE LANDFILL | Minor source | No |
| TOHONO O'ODHAM NATION | Minor source | No |
| TUCSON ELECTRIC POWER CO (NORTH LOOP) | Major source | No |
| TUCSON ELECTRIC POWER-IRVINGTON | Major source | No |
| TUCSON ELECTRIC PWR-DEMOSS PETRIE | Major source | No |
| TUCSON IRON & METAL | Minor source | No |
| TUCSON IRON & METAL | No | |
| TUCSON OUTSTANDING PRODUCTS | Major source | No |
| UNIVERSITY OF ARIZONA | Major source | No |
| VULCAN MATERIALS COMPANY - BLACK ANGUS | No | |
| VULCAN MATERIALS COMPANY - MARANA | No | |
| VULCAN MATERIALS COMPANY - ORANGE GROVE | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for Pima county, AZ. It lists 48 facilities in Pima county, of which 16 are major sources.