EPA Air · stack tests by state and year
Air-emissions stack tests in Arkansas, 2025
- 619Stack 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 Arkansas 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 Arkansas, 2025
- Van Buren County 72
- Mississippi County 66
- White County 64
- Cleburne County 49
- Benton County 47
- Conway County 46
- Hot Spring County 32
- Faulkner County 20
- Union County 16
- Columbia County 15
- Randolph County 15
- Izard County 14
- Washington County 13
- Jefferson County 12
- Little River County 11
- Logan County 11
- Franklin County 11
- Sebastian County 10
- Calhoun County 9
- Pope County 8
- Independence County 8
- Miller County 7
- Howard County 6
- Lincoln County 6
- Ouachita County 5
- Nevada County 5
- Greene County 4
- Desha County 4
- Clark County 3
- Crawford County 3
- Prairie County 3
- Pulaski County 3
Arkansas, other years
Air-emissions stack tests recorded in Arkansas, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-10-21 | ANTHONY TIMBERLANDS, INC. - BEARDEN | BEARDEN, Ouachita, AR | Pass | State |
| 2025-10-21 | ENABLE GAS TRANSMISSION, LLC (HELENA COMPRESSOR STATION) | HELENA, Phillips, AR | Pass | State |
| 2025-10-21 | ENABLE MISSISSIPPI RIVER TRANSMISSION, LLC - (BIGGERS COMPRESSOR STATION) | BIGGERS, Randolph, AR | Pass | State |
| 2025-10-20 | ENABLE MISSISSIPPI RIVER TRANSMISSION, LLC - FOUNTAIN HILL COMPRESSOR STATION | HAMBURG, Ashley, AR | Pass | State |
| 2025-10-20 | DESOTO GATHERING COMPANY, LLC - NORTHWEST CHARLEY CPF-2 | GREERS FERRY, Cleburne, AR | Pass | State |
| 2025-10-20 | DESOTO GATHERING COMPANY, LLC - MAKO CPF-1 | PANGBURN, White, AR | Pass | State |
| 2025-10-16 | DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW | CENTER RIDGE, Conway, AR | Pass | State |
| 2025-10-16 | DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW | CENTER RIDGE, Conway, AR | Pass | State |
| 2025-10-15 | DESOTO GATHERING COMPANY, LLC - S. BROWNIE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2025-10-15 | DESOTO GATHERING COMPANY, LLC - S. BROWNIE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2025-10-15 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-10-15 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-10-15 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Fail | State |
| 2025-10-15 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-10-14 | RAZORBACK GATHERING COMPANY, LLC. - HARMONY CPF 1 | SEARCY, White, AR | Pass | State |
| 2025-10-13 | RAZORBACK GATHERING COMPANY, LLC. - HARMONY CPF 1 | SEARCY, White, AR | Pass | State |
| 2025-10-13 | DESOTO GATHERING COMPANY, LLC - TIGER CPF 2 | JUDSONIA, White, AR | Pass | State |
| 2025-10-11 | ARKANSAS BIOENERGY, LLC - RUSSELLVILLE | RUSSELLVILLE, Pope, AR | Pass | State |
| 2025-10-11 | ARKANSAS BIOENERGY, LLC - RUSSELLVILLE | RUSSELLVILLE, Pope, AR | Pass | State |
| 2025-10-09 | DESOTO GATHERING COMPANY, LLC - HAMMERHEAD CPF-1 | JUDSONIA, White, AR | Pass | State |
| 2025-10-09 | DESOTO GATHERING COMPANY, LLC - HAMMERHEAD CPF-1 | JUDSONIA, White, AR | Pass | State |
| 2025-10-08 | POTLATCHDELTIC LAND & LUMBER, LLC - WARREN LUMBER MILL | WARREN, Bradley, AR | Pass | State |
| 2025-10-08 | DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2025-10-08 | DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2025-10-08 | DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2025-10-08 | ENTERGY ARKANSAS, LLC - WHITE BLUFF PLANT | REDFIELD, Jefferson, AR | Pass | State |
| 2025-10-08 | FAYETTEVILLE EXPRESS PIPELINE LLC - RUSSELL COMPRESSOR STATION | BALD KNOB, White, AR | Pass | State |
| 2025-10-07 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-10-07 | STELLA-JONES CORPORATION | DELIGHT, Pike, AR | Pass | State |
| 2025-10-07 | RAZORBACK GATHERING COMPANY, LLC - HILLTOP COMPRESSOR STATION | CLINTON, Van Buren, AR | Pass | State |
| 2025-10-07 | FAYETTEVILLE EXPRESS PIPELINE LLC - RUSSELL COMPRESSOR STATION | BALD KNOB, White, AR | Pass | State |
| 2025-10-07 | FAYETTEVILLE EXPRESS PIPELINE LLC - RUSSELL COMPRESSOR STATION | BALD KNOB, White, AR | Pass | State |
| 2025-10-06 | DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-2 | CLINTON, Van Buren, AR | Pass | State |
| 2025-10-06 | DESOTO GATHERING COMPANY, LLC - NORTH YELLOWSTONE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2025-10-02 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2025-10-02 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2025-10-02 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2025-10-02 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2025-10-02 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2025-10-02 | FUTUREFUEL CHEMICAL COMPANY | BATESVILLE, Independence, AR | Pass | State |
| 2025-10-02 | ARKANSAS ELECTRIC COOPERATIVE CORPORATION - ELKINS CT PLANT | ELKINS, Washington, AR | Pass | State |
| 2025-10-02 | ARKANSAS ELECTRIC COOPERATIVE CORPORATION - ELKINS CT PLANT | ELKINS, Washington, AR | Pass | State |
| 2025-09-30 | CHEROKEE SANITARY LANDFILL COMPANY | CHEROKEE VILLAGE, Fulton, AR | Pass | State |
| 2025-09-30 | PLUM POINT SERVICES COMPANY, LLC - PLUM POINT ENERGY STATION | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-09-30 | NUCOR COATINGS CORPORATION - BLYTHEVILLE PLANT | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2025-09-30 | DESOTO GATHERING COMPANY, LLC - SW GREER LAKE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2025-09-30 | DESOTO GATHERING COMPANY, LLC - SW GREER LAKE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2025-09-29 | DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-2 | CLEVELAND, Conway, AR | Pass | State |
| 2025-09-29 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2025-09-29 | MERIT ENERGY- TURKEY KNOB BOOSTER STATION | PARIS, Logan, AR | Pass | State |
| 2025-09-26 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Fail | State |
| 2025-09-26 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-09-25 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2025-09-25 | RAZORBACK GATHERING COMPANY, LLC. - ROSE BUD COMPRESSOR STATION | SEARCY, White, AR | Pass | State |
| 2025-09-25 | RAZORBACK GATHERING COMPANY, LLC. - ROSE BUD COMPRESSOR STATION | SEARCY, White, AR | Pass | State |
| 2025-09-24 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2025-09-24 | DESOTO GATHEIRNG COMPANY, LLC - GRAVEL HILL CPF-2 | CLEVELAND (HISTORICAL), TOWNSHIP OF, Van Buren, AR | Pass | State |
| 2025-09-24 | DESOTO GATHERING COMPANY, LLC - GRAVEL HILL CPF-4 | SCOTLAND, Van Buren, AR | Pass | State |
| 2025-09-23 | ENABLE GAS TRANSMISSION, LLC - BEIRNE COMPRESSOR STATION | GURDON, Clark, AR | Pass | State |
| 2025-09-23 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2025-09-23 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2025-09-23 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2025-09-23 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2025-09-22 | DESOTO GATHERING COMPANY, LLC - TIGER CPF-1 | BRADFORD, White, AR | Pass | State |
| 2025-09-22 | DESOTO GATHERING COMPANY, LLC - TIGER CPF-1 | BRADFORD, White, AR | Pass | State |
| 2025-09-18 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2025-09-18 | ABIDE FARMS, LLC | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2025-09-16 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-3 | SPRINGFIELD, Conway, AR | Pass | State |
| 2025-09-16 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-3 | SPRINGFIELD, Conway, AR | Pass | State |
| 2025-09-16 | AECC - MAGNET COVE GENERATING STATION | MALVERN, Hot Spring, AR | Pass | State |
| 2025-09-16 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-09-15 | DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-1 | QUITMAN, Cleburne, AR | Pass | State |
| 2025-09-15 | DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW | CENTER RIDGE, Conway, AR | Pass | State |
| 2025-09-12 | DESOTO GATHERING COMPANY, LLC. - PUMA CPF-1 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2025-09-12 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2025-09-12 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2025-09-12 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2025-09-11 | PARAGOULD CITY LIGHT & WATER | PARAGOULD, Greene, AR | Pass | State |
| 2025-09-11 | PARAGOULD CITY LIGHT & WATER | PARAGOULD, Greene, AR | Pass | State |
| 2025-09-11 | PARAGOULD CITY LIGHT & WATER | PARAGOULD, Greene, AR | Pass | State |
| 2025-09-11 | DESOTO GATHERING COMPANY, LLC - HAMMERHEAD CPF-1 | JUDSONIA, White, AR | Pass | State |
| 2025-09-11 | DESOTO GATHERING COMPANY, LLC - TIGER CPF-1 | BRADFORD, White, AR | Pass | State |
| 2025-09-10 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2025-09-10 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2025-09-09 | ARKANSAS BIOENERGY, LLC - LEOLA | LEOLA, Grant, AR | Pass | State |
| 2025-09-09 | ARKANSAS BIOENERGY, LLC - LEOLA | LEOLA, Grant, AR | Pass | State |
| 2025-09-09 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-09-05 | RICHARD BAUGHN CONSTRUCTION, INC. | WALNUT RIDGE, Lawrence, AR | Pass | State |
| 2025-09-03 | ENTERGY ARKANSAS, LLC - WHITE BLUFF PLANT | REDFIELD, Jefferson, AR | Pass | State |
| 2025-09-03 | B&MP INC. | CAMDEN, Ouachita, AR | Pass | State |
| 2025-09-03 | GNB FORT SMITH LLC | FORT SMITH, Sebastian, AR | Pass | State |
| 2025-08-29 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2025-08-29 | SOUTHWESTERN ELECTIRC POWER COMPANY - HARRY D. MATTISON POWER PLANT | TONTITOWN, Washington, AR | Pass | State |
| 2025-08-28 | SOUTHWESTERN ELECTIRC POWER COMPANY - HARRY D. MATTISON POWER PLANT | TONTITOWN, Washington, AR | Pass | State |
| 2025-08-28 | MARTIN MARIETTA MATERIAL, INC. - JONES MILL QUARRY | MALVERN, Hot Spring, AR | Pass | State |
| 2025-08-28 | MARTIN MARIETTA MATERIAL, INC. - JONES MILL QUARRY | MALVERN, Hot Spring, AR | Pass | State |
| 2025-08-28 | MARTIN MARIETTA MATERIAL, INC. - JONES MILL QUARRY | MALVERN, Hot Spring, AR | Pass | State |
| 2025-08-28 | MARTIN MARIETTA MATERIAL, INC. - JONES MILL QUARRY | MALVERN, Hot Spring, AR | Pass | State |
| 2025-08-28 | MARTIN MARIETTA MATERIAL, INC. - JONES MILL QUARRY | MALVERN, Hot Spring, AR | Pass | State |
| 2025-08-28 | MARTIN MARIETTA MATERIAL, INC. - JONES MILL QUARRY | MALVERN, Hot Spring, AR | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.