EPA Air · stack tests by state and year
Air-emissions stack tests in Idaho, 2025
- 111Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Idaho during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Idaho, 2025
- Ada County 41
- Nez Perce County 13
- Bonneville County 9
- Power County 9
- Caribou County 6
- Bingham County 6
- Kootenai County 5
- Canyon County 3
Idaho, other years
Air-emissions stack tests recorded in Idaho, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-11 | H & B CRUSHING 00380 | KUNA, Ada, ID | Pass | State |
| 2025-12-11 | H & B CRUSHING 00595 | KUNA, Ada, ID | Pass | State |
| 2025-12-11 | H & B CRUSHING 00596 | KUNA, Ada, ID | Pass | State |
| 2025-12-11 | H & B CRUSHING 00597 | KUNA, Ada, ID | Pass | State |
| 2025-12-11 | H & B CRUSHING 00598 | KUNA, Ada, ID | Pass | State |
| 2025-12-11 | H & B CRUSHING 00615 | KUNA, Ada, ID | Pass | State |
| 2025-12-09 | MICRON TECHNOLOGY INC BOISE | BOISE, Ada, ID | Pass | State |
| 2025-12-09 | WEST POINT RNG LLC | WENDELL, Gooding, ID | Pass | State |
| 2025-12-04 | SUPERIOR CONSTRUCTION AND EXCAVATING INC 00684 | MERIDIAN, Ada, ID | Pass | State |
| 2025-12-03 | H & B CRUSHING 00380 | KUNA, Ada, ID | Pass | State |
| 2025-12-03 | H & B CRUSHING 00595 | KUNA, Ada, ID | Pass | State |
| 2025-12-03 | H & B CRUSHING 00596 | KUNA, Ada, ID | Pass | State |
| 2025-12-03 | H & B CRUSHING 00597 | KUNA, Ada, ID | Pass | State |
| 2025-12-03 | H & B CRUSHING 00598 | KUNA, Ada, ID | Pass | State |
| 2025-12-03 | H & B CRUSHING 00615 | KUNA, Ada, ID | Pass | State |
| 2025-11-24 | WESTERN CONSTRUCTION 00098 | BOISE, Ada, ID | Pass | State |
| 2025-11-24 | WESTERN CONSTRUCTION 00604 | BOISE, Ada, ID | Pass | State |
| 2025-11-24 | WESTERN CONSTRUCTION 00605 | BOISE, Ada, ID | Pass | State |
| 2025-11-24 | WESTERN CONSTRUCTION INC 00680 | BOISE, Ada, ID | Pass | State |
| 2025-11-24 | WESTERN CONSTRUCTION INC 00682 | BOISE, Ada, ID | Pass | State |
| 2025-11-24 | WESTERN CONSTRUCTION INC 00683 | BOISE, Ada, ID | Pass | State |
| 2025-11-20 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2025-11-19 | NORTHWEST PIPELINE LLC SODA SPRINGS | GEORGETOWN, Bear Lake, ID | Fail | State |
| 2025-11-17 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2025-11-05 | MILNER BUTTE LANDFILL | BURLEY, Cassia, ID | Pass | State |
| 2025-11-04 | HESS PUMICE PRODUCTS INC | MALAD CITY, Oneida, ID | Fail | State |
| 2025-10-22 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-10-16 | WOOD'S CRUSHING & HAULING INC 00375 | SANDPOINT, Bonner, ID | Pass | State |
| 2025-10-15 | NORTH IDAHO ENERGY LOGS - MOYIE | MOYIE SPRINGS, Boundary, ID | Pass | State |
| 2025-10-14 | NORTH IDAHO ENERGY LOGS - HAUSER | HAUSER, Kootenai, ID | Pass | State |
| 2025-10-10 | IDAHO FOREST GROUP LLC - MOYIE SPRINGS | MOYIE SPRINGS, Boundary, ID | Pass | State |
| 2025-10-10 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-10-10 | KNIFE RIVER CORP - MTN WEST 00472 | BOISE, Ada, ID | Pass | State |
| 2025-10-07 | FORT HALL MINE ROAD LANDFILL | POCATELLO, Bannock, ID | Pass | State |
| 2025-10-02 | GRAIN CRAFT | BLACKFOOT, Bingham, ID | Pass | State |
| 2025-10-02 | SUNCORE CONSTRUCTION & MATERIALS INC 00572 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-10-01 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2025-09-30 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2025-09-25 | HK CONTRACTORS INC 00079 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-09-25 | HK CONTRACTORS INC 00121 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-09-25 | HK CONTRACTORS INC 00168 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-09-25 | INLAND ASPHALT CO 00303 | BOISE, Ada, ID | Pass | State |
| 2025-09-25 | HK CONTRACTORS 00413 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-09-25 | HK CONTRACTORS INC 00463 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-09-25 | HK CONTRACTORS INC 00480 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-09-25 | HK CONTRACTORS 00495 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-09-24 | KOOTENAI RENEWABLE ENERGY LLC - FIGHTING CREEK | COEUR D'ALENE, Kootenai, ID | Pass | State |
| 2025-09-24 | BENNETT LUMBER PRODUCTS PRINCETON | PRINCETON, Latah, ID | Pass | State |
| 2025-09-24 | CEA DAIRY RNG IDAHO LLC - MURTAUGH | MURTAUGH, Twin Falls, ID | Pass | State |
| 2025-09-22 | IDAHO MILK PRODUCTS | JEROME, Jerome, ID | Pass | State |
| 2025-09-11 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-09-09 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-08-19 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-08-12 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-08-05 | COEUR D'ALENE PAVING - RATHDRUM 00432 | COEUR D'ALENE, Kootenai, ID | Pass | State |
| 2025-08-05 | HK CONTRACTORS INC - 142 HOT PLANT 00688 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2025-08-01 | H & B CRUSHING 00596 | KUNA, Ada, ID | Pass | State |
| 2025-07-31 | H & B CRUSHING 00380 | KUNA, Ada, ID | Pass | State |
| 2025-07-30 | RATHDRUM POWER LLC | RATHDRUM, Kootenai, ID | Pass | State |
| 2025-07-30 | WESTERN CONSTRUCTION 00212 | BOISE, Ada, ID | Pass | State |
| 2025-07-24 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-07-22 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-07-18 | IDAHO POWER CO - EVANDER ANDREWS COMPLEX | MOUNTAIN HOME, Elmore, ID | Pass | State |
| 2025-07-16 | RUVEON - SODA SPRINGS PLANT (TV FACILITY) | SODA SPRINGS, Caribou, ID | Pass | State |
| 2025-06-12 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-06-11 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-06-09 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-06-04 | WESTERN CONSTRUCTION 00098 | BOISE, Ada, ID | Pass | State |
| 2025-06-04 | WESTERN CONSTRUCTION 00604 | BOISE, Ada, ID | Pass | State |
| 2025-06-04 | WESTERN CONSTRUCTION 00605 | BOISE, Ada, ID | Pass | State |
| 2025-06-04 | WESTERN CONSTRUCTION INC 00680 | BOISE, Ada, ID | Pass | State |
| 2025-06-04 | WESTERN CONSTRUCTION INC 00682 | BOISE, Ada, ID | Pass | State |
| 2025-06-04 | WESTERN CONSTRUCTION INC 00683 | BOISE, Ada, ID | Pass | State |
| 2025-05-22 | DF-AP#1, LLC - BIG SKY WEST DAIRY | GOODING, Gooding, ID | Pass | State |
| 2025-05-21 | RUVEON - SODA SPRINGS PLANT (TV FACILITY) | SODA SPRINGS, Caribou, ID | Pass | State |
| 2025-05-21 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-05-20 | KNIFE RIVER CORP - MTN WEST 00378 | BOISE, Ada, ID | Pass | State |
| 2025-05-20 | KNIFE RIVER CORP - MTN WEST 00585 | BOISE, Ada, ID | Pass | State |
| 2025-05-20 | KNIFE RIVER CORP - MOUNTAIN WEST 00603 | BOISE, Ada, ID | Pass | State |
| 2025-05-20 | KNIFE RIVER - MOUNTAIN WEST 00606 | BOISE, Ada, ID | Pass | State |
| 2025-05-07 | STIMSON LUMBER COMPANY PRIEST RIVER | PRIEST RIVER, Bonner, ID | Pass | State |
| 2025-05-01 | KNIFE RIVER CORP - MTN WEST 00378 | BOISE, Ada, ID | Pass | State |
| 2025-05-01 | KNIFE RIVER CORP - MTN WEST 00585 | BOISE, Ada, ID | Pass | State |
| 2025-05-01 | KNIFE RIVER CORP - MOUNTAIN WEST 00603 | BOISE, Ada, ID | Pass | State |
| 2025-05-01 | KNIFE RIVER - MOUNTAIN WEST 00606 | BOISE, Ada, ID | Pass | State |
| 2025-04-30 | GALE LIM CONSTRUCTION 00039 | BLACKFOOT, Bingham, ID | Pass | State |
| 2025-04-30 | GALE LIM CONSTRUCTION 00266 | BLACKFOOT, Bingham, ID | Pass | State |
| 2025-04-30 | GALE LIM CONSTRUCTION 00266 | BLACKFOOT, Bingham, ID | Pass | State |
| 2025-04-30 | GALE LIM CONSTRUCTION 00650 | BLACKFOOT, Bingham, ID | Pass | State |
| 2025-04-30 | GALE LIM CONSTRUCTION 00651 | BLACKFOOT, Bingham, ID | Pass | State |
| 2025-04-23 | POE ASPHALT PAVING 00668 | IDAHO, Undetermined, ID | Fail | State |
| 2025-04-17 | COEUR D'ALENE PAVING - RATHDRUM 00432 | COEUR D'ALENE, Kootenai, ID | Fail | State |
| 2025-04-10 | SUNCORE CONSTRUCTION & MATERIALS - 00582 | BOISE, Ada, ID | Pass | State |
| 2025-04-08 | NORTHWEST PIPELINE LLC BOISE | BOISE, Ada, ID | Pass | State |
| 2025-04-04 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-03-25 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-03-24 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2025-03-22 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2025-03-20 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Fail | State |
| 2025-03-11 | NORTHWEST GAS PROCESSING LLC | NEW PLYMOUTH, Payette, ID | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.