EPA Air · stack tests by state and year
Air-emissions stack tests in Arkansas, 2026
- 374Stack 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 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Arkansas, 2026
- Washington County 55
- Van Buren County 53
- Cleburne County 39
- Conway County 33
- White County 33
- Pulaski County 29
- Mississippi County 26
- Faulkner County 16
- Jefferson County 14
- Franklin County 13
- Sebastian County 8
- Union County 6
- Lincoln County 6
- Independence County 5
- Pope County 3
- Hot Spring County 3
- Logan County 3
- Columbia County 3
- Yell County 3
Arkansas, other years
Air-emissions stack tests recorded in Arkansas, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-08-20 | DESOTO GATHERING COMPANY, LLC - SW GREER LAKE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-08-20 | DESOTO GATHERING COMPANY, LLC - SW GREER LAKE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-08-19 | DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-2 | CLEVELAND, Conway, AR | Pass | State |
| 2026-08-19 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2026-08-17 | DESOTO GATHEIRNG COMPANY, LLC - GRAVEL HILL CPF-2 | CLEVELAND (HISTORICAL), TOWNSHIP OF, Van Buren, AR | Pass | State |
| 2026-08-17 | DESOTO GATHERING COMPANY, LLC - SOUTHWEST GREER LAKE CPF-5 | CLINTON, Van Buren, AR | Pass | State |
| 2026-08-13 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2026-08-13 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2026-08-12 | DESOTO GATHERING COMPANY, LLC - TIGER CPF-1 | BRADFORD, White, AR | Pass | State |
| 2026-08-12 | DESOTO GATHERING COMPANY, LLC - TIGER CPF-1 | BRADFORD, White, AR | Pass | State |
| 2026-08-11 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-3 | SPRINGFIELD, Conway, AR | Pass | State |
| 2026-08-11 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-3 | SPRINGFIELD, Conway, AR | Pass | State |
| 2026-08-10 | DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-1 | QUITMAN, Cleburne, AR | Pass | State |
| 2026-08-10 | DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW | CENTER RIDGE, Conway, AR | Pass | State |
| 2026-08-06 | DESOTO GATHERING COMPANY, LLC. - PUMA CPF-1 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-08-06 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-08-05 | DESOTO GATHERING COMPANY, LLC - HAMMERHEAD CPF-1 | JUDSONIA, White, AR | Pass | State |
| 2026-08-05 | DESOTO GATHERING COMPANY, LLC - TIGER CPF-1 | BRADFORD, White, AR | Pass | State |
| 2026-08-04 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2026-08-04 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2026-08-03 | DESOTO GATHERING COMPANY, LLC - YOGI CPF-1 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-08-03 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2026-07-31 | RAZORBACK GATHERING COMPANY, LLC. - LITTLE RED RIVER CPF 1 | BALD KNOB, White, AR | Pass | State |
| 2026-07-31 | DESOTO GATHERING COMPANY, LLC.-OLIVER CPF-1 | SEARCY, White, AR | Pass | State |
| 2026-07-30 | DESOTO GATHERING COMPANY, LLC - SOUTHEAST RAINBOW CPF-2 | BEE BRANCH, Conway, AR | Pass | State |
| 2026-07-30 | DESOTO GATHERING COMPANY LLC - NEW QUITMAN CPF-4 | QUITMAN, Faulkner, AR | Pending | State |
| 2026-07-29 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-5 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-07-29 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-2 | PANGBURN, White, AR | Pass | State |
| 2026-07-28 | DESOTO GATHERING COMPANY, LLC - NE CHARLEY CPF-2 | DRASCO, Cleburne, AR | Pass | State |
| 2026-07-28 | DESOTO GATHERING COMPANY, LLC - NE CHARLEY CPF-2 | DRASCO, Cleburne, AR | Pass | State |
| 2026-07-28 | ENTERGY ARKANSAS, LLC - WHITE BLUFF PLANT | REDFIELD, Jefferson, AR | Pass | State |
| 2026-07-28 | ENABLE GAS TRANSMISSION, LLC - SEARCY COMPRESSOR STATION | LETONA, White, AR | Pass | State |
| 2026-07-27 | DESOTO GATHERING COMPANY, LLC - NORTH YELLOWSTONE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-07-27 | DESOTO GATHERING COMPANY, LLC - SOUTHWEST GREER LAKE CPF-5 | CLINTON, Van Buren, AR | Pass | State |
| 2026-07-24 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-5 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-07-24 | DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-07-23 | ENTERGY ARKANSAS, LLC - INDEPENDENCE PLANT | NEWARK, Independence, AR | Pass | State |
| 2026-07-22 | ENTERGY ARKANSAS, LLC - INDEPENDENCE PLANT | NEWARK, Independence, AR | Pass | State |
| 2026-07-16 | EMERY SAPP & SONS, INC. - GRAVETTE ASPHALT PLANT | SULPHUR SPRINGS, Benton, AR | Pass | State |
| 2026-07-14 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-07-14 | RAZORBACK GATHERING COMPANY, LLC. - LITTLE RED RIVER CPF 1 | BALD KNOB, White, AR | Fail | State |
| 2026-07-14 | DESOTO GATHERING COMPANY, LLC.-OLIVER CPF-1 | SEARCY, White, AR | Fail | State |
| 2026-07-13 | DESOTO GATHERING COMPANY, LLC - SOUTHEAST RAINBOW CPF-2 | BEE BRANCH, Conway, AR | Fail | State |
| 2026-07-13 | DESOTO GATHERING COMPANY LLC - NEW QUITMAN CPF-4 | QUITMAN, Faulkner, AR | Fail | State |
| 2026-07-09 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-5 | HEBER SPRINGS, Cleburne, AR | Fail | State |
| 2026-07-09 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-2 | PANGBURN, White, AR | Fail | State |
| 2026-07-08 | DESOTO GATHERING COMPANY, LLC - NE CHARLEY CPF-2 | DRASCO, Cleburne, AR | Fail | State |
| 2026-07-08 | SOUTHWESTERN ELECTIRC POWER COMPANY - HARRY D. MATTISON POWER PLANT | TONTITOWN, Washington, AR | Pass | State |
| 2026-07-07 | DESOTO GATHERING COMPANY, LLC - NORTH YELLOWSTONE CPF-2 | BEE BRANCH, Van Buren, AR | Fail | State |
| 2026-07-07 | DESOTO GATHERING COMPANY, LLC - SOUTHWEST GREER LAKE CPF-5 | CLINTON, Van Buren, AR | Fail | State |
| 2026-07-07 | SOUTHWESTERN ELECTIRC POWER COMPANY - HARRY D. MATTISON POWER PLANT | TONTITOWN, Washington, AR | Pass | State |
| 2026-07-06 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-5 | HEBER SPRINGS, Cleburne, AR | Fail | State |
| 2026-07-06 | DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4 | HEBER SPRINGS, Cleburne, AR | Fail | State |
| 2026-07-01 | ET GATHERING & PROCESSING LLC. - MANSFIELD COMPRESSOR STATION | MANSFIELD, Scott, AR | Pass | State |
| 2026-06-30 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2026-06-30 | ENABLE GAS TRANSMISSION, LLC - SEARCY COMPRESSOR STATION | LETONA, White, AR | Pass | State |
| 2026-06-25 | PLUM POINT SERVICES COMPANY, LLC - PLUM POINT ENERGY STATION | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-06-23 | ENABLE MRT, LLC - GLENDALE COMPRESSOR STATION | STAR CITY, Lincoln, AR | Pass | State |
| 2026-06-23 | WHEATLAND TUBE, LLC. | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-06-18 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-18 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-16 | ANTHONY TIMBERLANDS, INC. - BEARDEN | BEARDEN, Ouachita, AR | Pass | State |
| 2026-06-15 | JOSIE PAYNE CONSTRUCTION CASA INC. | OLA, Yell, AR | Pass | State |
| 2026-06-11 | RAZORBACK GATHERING COMPANY, LLC. - WOOLLY HOLLOW CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2026-06-11 | RAZORBACK GATHERING COMPANY, LLC. - WOOLLY HOLLOW CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2026-06-10 | DESOTO GATHERING COMPANY, LLC. - PUMA CPF-1 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-06-10 | DESOTO GATHERING COMPANY, LLC - SOUTHEAST RAINBOW CPF-2 | BEE BRANCH, Conway, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-06-09 | DESOTO GATHERING COMPANY, LLC - TIGER CPF 2 | JUDSONIA, White, AR | Pass | State |
| 2026-06-08 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-1 | QUITMAN, Faulkner, AR | Pass | State |
| 2026-06-08 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-1 | QUITMAN, Faulkner, AR | Pass | State |
| 2026-06-04 | DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-1 | CLEVELAND, Conway, AR | Pass | State |
| 2026-06-04 | DESOTO GATHERING COMPANY LLC - SOUTH BROWNIE CPF 2 | HATTIEVILLE, Conway, AR | Pass | State |
| 2026-06-04 | ANTHONY TIMBERLANDS, INC. - MALVERN | MALVERN, Hot Spring, AR | Pass | State |
| 2026-06-04 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-04 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-04 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-04 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-03 | DESOTO GATHERING COMPANY, LLC.-STONEFLY CPF 1 | SIDON, Cleburne, AR | Pass | State |
| 2026-06-03 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-06-02 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-02 | SUZANO PACKAGING, LLC | PINE BLUFF, Jefferson, AR | Pass | State |
| 2026-06-02 | DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-3 | CLINTON, Van Buren, AR | Pass | State |
| 2026-06-01 | FLYWHEEL ENERGY COMPANY - PUMA NORTH CPF-1 | WILBURN, Cleburne, AR | Pass | State |
| 2026-06-01 | FLYWHEEL ENERGY COMPANY - PUMA NORTH CPF-1 | WILBURN, Cleburne, AR | Pass | State |
| 2026-05-28 | MID CONTINENT COAL & COKE COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-05-28 | MID CONTINENT COAL & COKE COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-05-28 | MID CONTINENT COAL & COKE COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-05-28 | MID CONTINENT COAL & COKE COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-05-27 | MID-CONTINENT COAL AND COKE COMPANY | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-05-27 | MID-CONTINENT COAL AND COKE COMPANY | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-05-27 | MID-CONTINENT COAL AND COKE COMPANY | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-05-27 | MID-CONTINENT COAL AND COKE COMPANY | OSCEOLA, Mississippi, AR | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.