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

Arkansas, other years

Air-emissions stack tests recorded in Arkansas, 2026

Date	Facility	Where	Kind	Agency
2026-02-16	DESOTO GATHERING COMPANY, LLC - GRIFFIN MOUNTAIN CPF-2	JERUSALEM, Conway, AR	Pass	State
2026-02-16	DESOTO GATHERING COMPANY, LLC - STURGEON CPF-3	CENTER RIDGE, Conway, AR	Pass	State
2026-02-13	DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3	HEBER SPRINGS, Cleburne, AR	Pass	State
2026-02-13	DESOTO GATHERING COMPANY, LLC - MAKO CPF-1	PANGBURN, White, AR	Pass	State
2026-02-12	GREEN BAY PACKAGING, INC. - ARKANSAS KRAFT DIVISION	MORRILTON, Conway, AR	Pass	State
2026-02-12	DESOTO GATHERING COMPANY, LLC - S. RAINBOW CPF-2	CLINTON, Conway, AR	Pass	State
2026-02-11	DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-2	QUITMAN, Cleburne, AR	Pass	State
2026-02-11	DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-2	QUITMAN, Cleburne, AR	Pass	State
2026-02-11	ENABLE GAS TRANSMISSION, LLC - COVE COMPRESSOR STATION	COVE, Polk, AR	Pass	State
2026-02-10	EXPLORATORY VENTURES, LLC.	OSCEOLA, Mississippi, AR	Pass	State
2026-02-10	EXPLORATORY VENTURES, LLC.	OSCEOLA, Mississippi, AR	Pass	State
2026-02-10	DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-2	CLINTON, Van Buren, AR	Pass	State
2026-02-10	DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-2	CLINTON, Van Buren, AR	Pass	State
2026-02-09	DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW CPF-4	CENTER RIDGE, Conway, AR	Pass	State
2026-02-09	DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW CPF-4	CENTER RIDGE, Conway, AR	Pass	State
2026-02-06	DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-3	QUITMAN, Cleburne, AR	Pass	State
2026-02-06	DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-2	QUITMAN, Faulkner, AR	Pass	State
2026-02-06	LSB CHEMICAL LLC	EL DORADO, Union, AR	Pass	State
2026-02-06	LSB CHEMICAL LLC	EL DORADO, Union, AR	Pass	State
2026-02-06	LSB CHEMICAL LLC	EL DORADO, Union, AR	Pass	State
2026-02-06	LSB CHEMICAL LLC	EL DORADO, Union, AR	Pass	State
2026-02-05	ENTERGY ARKANSAS, LLC - WHITE BLUFF PLANT	REDFIELD, Jefferson, AR	Pass	State
2026-02-05	DESOTO GATHERING COMPANY LLC. - SOUTHWEST GREER LAKE CPF-3	BEE BRANCH, Van Buren, AR	Pass	State
2026-02-05	DESOTO GATHERING COMPANY, LLC - NORTH YELLOWSTONE CPF-2	BEE BRANCH, Van Buren, AR	Pass	State
2026-02-04	ENTERGY ARKANSAS, LLC - INDEPENDENCE PLANT	NEWARK, Independence, AR	Pass	State
2026-02-04	DESOTO GATHERING COMPANY, LLC - SOUTHWEST GREER LAKE CPF-5	CLINTON, Van Buren, AR	Pass	State
2026-02-04	DESOTO GATHERING COMPANY, LLC - SOUTHWEST GREER LAKE CPF-5	CLINTON, Van Buren, AR	Pass	State
2026-02-03	VALTO, INC.	JONESBORO, Craighead, AR	Pass	State
2026-02-03	ENTERGY ARKANSAS, LLC - INDEPENDENCE PLANT	NEWARK, Independence, AR	Pass	State
2026-01-30	NATURAL GAS PIPELINE COMPANY OF AMERICA LLC - STATION 305	TEXARKANA, Miller, AR	Pass	State
2026-01-29	TOKAI CARBON GE LLC	OZARK, Franklin, AR	Pass	State
2026-01-29	TOKAI CARBON GE LLC	OZARK, Franklin, AR	Pass	State
2026-01-29	NATURAL GAS PIPELINE COMPANY OF AMERICA LLC - STATION 306	MALVERN, Hot Spring, AR	Pass	State
2026-01-21	ENABLE GAS TRANSMISSION, LLC - WALKER COMPRESSOR STATION	CECIL, Franklin, AR	Pass	State
2026-01-20	CONTAINER LIFE CYCLE MANAGEMENT, LLC	ARKADELPHIA, Clark, AR	Pass	State
2026-01-20	ET GATHERING & PROCESSING LLC. - FEDERAL COMPRESSOR STATION	GREENWOOD, Sebastian, AR	Pass	State
2026-01-20	ET GATHERING & PROCESSING LLC. - HINKLE COMPRESSOR STATION	GREENWOOD, Sebastian, AR	Pass	State
2026-01-20	DESOTO GATHEIRNG COMPANY, LLC - GRAVEL HILL CPF-2	CLEVELAND (HISTORICAL), TOWNSHIP OF, Van Buren, AR	Pass	State
2026-01-20	DESOTO GATHERING COMPANY, LLC - YOGI CPF-2	BEE BRANCH, Van Buren, AR	Pass	State
2026-01-19	DESOTO GATHERING COMPANY, LLC - NORTHWEST CHARLEY CPF-2	GREERS FERRY, Cleburne, AR	Pass	State
2026-01-19	DESOTO GATHERING COMPANY, LLC - TIGER CPF-1	BRADFORD, White, AR	Pass	State
2026-01-15	ALMATIS, INC.	BENTON, Saline, AR	Pass	State
2026-01-15	DESOTO GATHERING COMPANY, LLC - NORTH YELLOWSTONE CPF-1	BEE BRANCH, Van Buren, AR	Pass	State
2026-01-15	DESOTO GATHERING COMPANY, LLC - NORTH YELLOWSTONE CPF-1	BEE BRANCH, Van Buren, AR	Pass	State
2026-01-14	DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-2	CLEVELAND, Conway, AR	Pass	State
2026-01-14	ENTERGY ARKANSAS, LLC - WHITE BLUFF PLANT	REDFIELD, Jefferson, AR	Pass	State
2026-01-14	DESOTO GATHERING COMPANY, LLC - GRAVEL HILL CPF-4	SCOTLAND, Van Buren, AR	Pass	State
2026-01-13	DESOTO GATHERING COMPANY, LLC - SOUTHEAST RAINBOW CPF-2	BEE BRANCH, Conway, AR	Pass	State
2026-01-13	BLACK HILLS ENERGY ARKANSAS, INC. - SELLS COMPRESSOR STATION	OZARK, Franklin, AR	Pass	State
2026-01-13	BLACK HILLS ENERGY ARKANSAS, INC. - SELLS COMPRESSOR STATION	OZARK, Franklin, AR	Pass	State
2026-01-13	BLACK HILLS ENERGY ARKANSAS, INC. - SELLS COMPRESSOR STATION	OZARK, Franklin, AR	Pass	State
2026-01-13	BLACK HILLS ENERGY ARKANSAS, INC. - SELLS COMPRESSOR STATION	OZARK, Franklin, AR	Pass	State
2026-01-13	BLACK HILLS ENERGY ARKANSAS, INC. - SELLS COMPRESSOR STATION	OZARK, Franklin, AR	Pass	State
2026-01-13	BLACK HILLS ENERGY ARKANSAS, INC. - SELLS COMPRESSOR STATION	OZARK, Franklin, AR	Pass	State
2026-01-13	ENTERGY ARKANSAS, LLC - WHITE BLUFF PLANT	REDFIELD, Jefferson, AR	Pass	State
2026-01-13	DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-2	CLINTON, Van Buren, AR	Pass	State
2026-01-12	DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4	HEBER SPRINGS, Cleburne, AR	Pass	State
2026-01-12	DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4	HEBER SPRINGS, Cleburne, AR	Pass	State
2026-01-08	DESOTO GATHERING COMPANY, LLC - MIDGE CPF-5	HEBER SPRINGS, Cleburne, AR	Pass	State
2026-01-08	ENABLE GAS TRANSMISSION, LLC - PINEY COMPRESSOR STATION	LONDON, Pope, AR	Pass	State
2026-01-08	ENABLE GAS TRANSMISSION, LLC - PINEY COMPRESSOR STATION	LONDON, Pope, AR	Pass	State
2026-01-08	ENABLE GAS TRANSMISSION, LLC - PINEY COMPRESSOR STATION	LONDON, Pope, AR	Pass	State
2026-01-08	DESOTO GATHERING COMPANY, LLC - STEELHEAD CPF-3	CLINTON, Van Buren, AR	Pass	State
2026-01-07	DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-3	QUITMAN, Cleburne, AR	Pass	State
2026-01-07	ENABLE GAS TRANSMISSION, LLC - (ROUND MOUNTAIN COMPRESSOR STATION)	LANTY, Conway, AR	Pass	State
2026-01-07	ENABLE GAS TRANSMISSION, LLC - (ROUND MOUNTAIN COMPRESSOR STATION)	LANTY, Conway, AR	Pass	State
2026-01-07	DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-1	QUITMAN, Faulkner, AR	Pass	State
2026-01-07	LIGNETICS OF AR AND MO, LLC	MOUNTAIN VIEW, Stone, AR	Pass	State
2026-01-07	LIGNETICS OF AR AND MO, LLC	MOUNTAIN VIEW, Stone, AR	Pass	State
2026-01-06	DESOTO GATHERING COMPANY, LLC. - PUMA CPF-1	HEBER SPRINGS, Cleburne, AR	Pass	State
2026-01-06	DESOTO GATHERING COMPANY, LLC - MAKO CPF-1	PANGBURN, White, AR	Pass	State
2026-01-05	DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4	DAMASCUS, Van Buren, AR	Pass	State
2026-01-05	DESOTO GATHERING COMPANY, LLC - GRAVEL HILL CPF-4	SCOTLAND, Van Buren, AR	Pass	State
2026-01-05	CITY OF BEEBE	BEEBEE, White, AR	Pass	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.