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 |
|---|---|---|---|---|
| 2026-05-27 | 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 | UNIVERSITY OF ARKANSAS - FAYETTEVILLE CAMPUS | FAYETTEVILLE, Washington, AR | Pass | State |
| 2026-05-27 | APAC CENTRAL, INC. - JENNY LIND ASPHALT | GREENWOOD, Sebastian, AR | Pass | State |
| 2026-05-27 | APAC CENTRAL, INC. - JENNY LIND ASPHALT | GREENWOOD, Sebastian, AR | Pass | State |
| 2026-05-26 | JET ASPHALT & ROCK COMPANY, INC - FORDYCE PLANT | FORDYCE, Dallas, AR | Pass | State |
| 2026-05-21 | CITY OF CONWAY SANITARY LANDFILL | CONWAY, Faulkner, AR | Fail | State |
| 2026-05-20 | GREEN BAY PACKAGING, INC. - ARKANSAS KRAFT DIVISION | MORRILTON, Conway, AR | Pass | State |
| 2026-05-19 | GREEN BAY PACKAGING, INC. - ARKANSAS KRAFT DIVISION | MORRILTON, Conway, AR | Pass | State |
| 2026-05-19 | ARKANSAS LIME COMPANY | BATESVILLE, Independence, AR | Pass | State |
| 2026-05-14 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-3 | QUITMAN, Cleburne, AR | Pass | State |
| 2026-05-14 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-2 | QUITMAN, Faulkner, AR | Pass | State |
| 2026-05-13 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-5 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-05-13 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-5 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-05-13 | LION OIL COMPANY | EL DORADO, Union, AR | Pass | State |
| 2026-05-13 | LION OIL COMPANY | EL DORADO, Union, AR | Pass | State |
| 2026-05-12 | WEYERHAEUSER NR COMPANY - EMERSON | EMERSON, Columbia, AR | Pass | State |
| 2026-05-12 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2026-05-12 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-2 | PANGBURN, White, AR | Pass | State |
| 2026-05-12 | DESOTO GATHERING COMPANY, LLC - TIGER CPF 2 | JUDSONIA, White, AR | Pass | State |
| 2026-05-11 | DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-3 | CLINTON, Van Buren, AR | Pass | State |
| 2026-05-11 | DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-3 | CLINTON, Van Buren, AR | Pass | State |
| 2026-05-11 | DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-3 | CLINTON, Van Buren, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-08 | 3M COMPANY - 3M INDUSTRIAL MINERAL PRODUCTS DIVISION | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2026-05-07 | DESOTO GATHERING COMPANY LLC - SOUTH BROWNIE CPF 2 | HATTIEVILLE, Conway, AR | Pass | State |
| 2026-05-07 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2026-05-07 | ENABLE MRT, LLC - GLENDALE COMPRESSOR STATION | STAR CITY, Lincoln, AR | Pass | State |
| 2026-05-07 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-05-06 | MERIT ENERGY COMPANY, LLC - MCMILLIAN CP | CLARKSVILLE, Johnson, AR | Pass | State |
| 2026-05-06 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-05-06 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2026-05-06 | DESOTO GATHERING COMPANY, LLC - YELLOWSTONE CPF 1 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-05-06 | DESOTO GATHERING COMPANY, LLC - YELLOWSTONE CPF 1 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-05-06 | DESOTO GATHERING COMPANY, LLC - YELLOWSTONE CPF-3 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-05-06 | MERIT ENERGY COMPANY, LLC - BLUE MOUNTAIN CP | WAVELAND, Yell, AR | Pass | State |
| 2026-05-05 | MERIT ENERGY COMPANY, LLC - PETERPENDER CP | CHARLESTON, Franklin, AR | Pass | State |
| 2026-05-05 | MERIT ENERGY COMPANY, LLC - PETERPENDER CP | CHARLESTON, Franklin, AR | Pass | State |
| 2026-05-05 | DESOTO GATHERING COMPANY, LLC.-OLIVER CPF-1 | SEARCY, White, AR | Pass | State |
| 2026-05-05 | DESOTO GATHERING COMPANY, LLC.-OLIVER CPF-1 | SEARCY, White, AR | Pass | State |
| 2026-05-04 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-2 | QUITMAN, Faulkner, AR | Pass | State |
| 2026-05-04 | DESOTO GATHERING COMPANY LLC - NEW QUITMAN CPF-4 | QUITMAN, Faulkner, AR | Pass | State |
| 2026-04-30 | ET GATHERING & PROCESSING LLC - WASHBURN COMPRESSOR STATION | GREENWOOD, Sebastian, AR | Pass | State |
| 2026-04-30 | MCGEORGE CONTRACTING CO. - CRANFORD CONSTRUCTION DIVISION - JONES MILL ASPHALT — high-priority violation on file | MALVERN, Hot Spring, AR | Pass | State |
| 2026-04-29 | ET GATHERING & PROCESSING LLC. - BROWNSVILLE COMPRESSOR STATION | BOONEVILLE, Logan, AR | Pass | State |
| 2026-04-29 | ET GATHERING & PROCESSING LLC. - BROWNSVILLE COMPRESSOR STATION | BOONEVILLE, Logan, AR | Pass | State |
| 2026-04-29 | RK HALL, LLC. | DE QUEEN, Sevier, AR | Pass | State |
| 2026-04-29 | RK HALL, LLC. | DE QUEEN, Sevier, AR | Fail | State |
| 2026-04-28 | DEFENDER GAS PRODUCERS LLC - WILSON CREEK | CLINTON, Van Buren, AR | Pass | State |
| 2026-04-16 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2026-04-16 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2026-04-16 | DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-2 | CLINTON, Van Buren, AR | Pass | State |
| 2026-04-15 | DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW | CENTER RIDGE, Conway, AR | Pass | State |
| 2026-04-15 | DESOTO GATHERING COMPANY, LLC - STURGEON CPF-3 | CENTER RIDGE, Conway, AR | Pass | State |
| 2026-04-15 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-04-14 | DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-2 | QUITMAN, Cleburne, AR | Pass | State |
| 2026-04-14 | DESOTO GATHERING COMPANY LLC - YELLOWSTONE CPF-2 | QUITMAN, Van Buren, AR | Pass | State |
| 2026-04-13 | DESOTO GATHERING COMPANY, LLC - YOGI CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-04-13 | DESOTO GATHERING COMPANY, LLC - YOGI CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-04-10 | DESOTO GATHERING COMPANY, LLC - SOUTHEAST RAINBOW CPF-1 | BEE BRANCH, Conway, AR | Pass | State |
| 2026-04-10 | DESOTO GATHEIRNG COMPANY, LLC - GRAVEL HILL CPF-2 | CLEVELAND (HISTORICAL), TOWNSHIP OF, Van Buren, AR | Pass | State |
| 2026-04-09 | DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-1 | CLEVELAND, Conway, AR | Pass | State |
| 2026-04-09 | DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-2 | CLEVELAND, Conway, AR | Pass | State |
| 2026-04-09 | OZARK GAS TRANSMISSION, LLC. - RANEY COMPRESSOR STATION | WALNUT RIDGE, Lawrence, AR | Pass | State |
| 2026-04-09 | OZARK GAS TRANSMISSION, LLC. - RANEY COMPRESSOR STATION | WALNUT RIDGE, Lawrence, AR | Pass | State |
| 2026-04-08 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-3 | SPRINGFIELD, Conway, AR | Pass | State |
| 2026-04-08 | ARKANSAS STEEL ASSOCIATES, LLC | NEWPORT, Jackson, AR | Pass | State |
| 2026-04-08 | ARKANSAS STEEL ASSOCIATES, LLC | NEWPORT, Jackson, AR | Pass | State |
| 2026-04-08 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2026-04-08 | COLUMBIA COUNTY LANDFILL | MAGNOLIA, Columbia, AR | Pass | State |
| 2026-04-07 | ENABLE MRT, LLC - GLENDALE COMPRESSOR STATION | STAR CITY, Lincoln, AR | Pass | State |
| 2026-04-07 | ENABLE MRT, LLC - GLENDALE COMPRESSOR STATION | STAR CITY, Lincoln, AR | Pass | State |
| 2026-04-07 | ENABLE MRT, LLC - GLENDALE COMPRESSOR STATION | STAR CITY, Lincoln, AR | Pass | State |
| 2026-04-07 | ENABLE MRT, LLC - GLENDALE COMPRESSOR STATION | STAR CITY, Lincoln, AR | Pass | State |
| 2026-04-06 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-1 | QUITMAN, Faulkner, AR | Pass | State |
| 2026-04-06 | DESOTO GATHERING COMPANY, LLC - MIDGE CPF-1 | SEARCY, White, AR | Pass | State |
| 2026-04-06 | JARVIS TREE SERVICE, INC. | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2026-04-02 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-04-02 | EXPLORATORY VENTURES, LLC. | OSCEOLA, Mississippi, AR | Pass | State |
| 2026-04-02 | U OF A VETERINARY DIAGNOSTIC LABORATORY | FAYETTEVILLE, Washington, AR | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.