EPA Air · stack tests by year
Air-emissions stack tests in 2021
- 35,950Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2021
- California 17,676
- Ohio 2,582
- Florida 1,540
- Indiana 1,495
- Oklahoma 1,318
- Georgia 1,189
- New Mexico 841
- Pennsylvania 788
- Alabama 621
- Mississippi 589
- Texas 574
- Arkansas 518
- Missouri 515
- Colorado 407
- Iowa 368
- Washington 334
- North Carolina 273
- Michigan 256
- Wisconsin 239
- Wyoming 235
- West Virginia 225
- Kentucky 222
- Delaware 222
- Montana 220
- South Carolina 217
- Minnesota 209
- Kansas 177
- Alaska 143
- Illinois 142
- Utah 140
- Nevada 136
- Virginia 131
- Nebraska 117
- Maine 110
- New Jersey 110
- New York 103
- Connecticut 99
- Tennessee 98
- North Dakota 93
- Arizona 93
- Idaho 90
- Louisiana 69
- Hawaii 64
- Maryland 56
- South Dakota 55
- District of Columbia 54
- New Hampshire 53
- Oregon 45
- Rhode Island 34
- Massachusetts 29
- Puerto Rico 19
- Vermont 17
Other years
Air-emissions stack tests recorded in 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-11-03 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-11-03 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-11-03 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-11-03 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-11-03 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-11-03 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2021-11-03 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2021-11-03 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2021-11-03 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-03 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-03 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC-ALBERTCITY | ALBERT CITY, Buena Vista, IA | Pass | State |
| 2021-11-03 | THE ANDERSONS MARATHON HOLDINGS LLC — high-priority violation on file | DENISON, Crawford, IA | Pass | State |
| 2021-11-03 | BIG RIVER UNITED ENERGY LLC-DYERSVILLE | DYERSVILLE, Dubuque, IA | Pass | State |
| 2021-11-03 | STORY CITY MUNICIPAL ELECTRIC UTILITY | STORY CITY, Story, IA | Pass | State |
| 2021-11-03 | PMX INDUSTRIES,INC. | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2021-11-03 | PMX INDUSTRIES,INC. | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2021-11-03 | PMX INDUSTRIES,INC. | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2021-11-03 | PMX INDUSTRIES,INC. | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2021-11-03 | PMX INDUSTRIES,INC. | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2021-11-03 | JUPITER ALUMINUM CORPORATION — high-priority violation on file | HAMMOND, Lake, IN | Pass | State |
| 2021-11-03 | JUPITER ALUMINUM CORPORATION — high-priority violation on file | HAMMOND, Lake, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-03 | SUPERIOR GRAPHITE | HOPKINSVILLE, Christian, KY | Pass | State |
| 2021-11-03 | MARATHON PETROLEUM CO LP (KRAMERS LANE) | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2021-11-03 | LEHIGH CEMENT COMPANY - UNION BRIDGE | UNION BRIDGE, Carroll, MD | Pass | State |
| 2021-11-03 | EXETER AGRI-ENERGY, LLC | EXETER, TOWN OF, Penobscot, ME | Pass | State |
| 2021-11-03 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2021-11-03 | LHOIST NORTH AMERICA | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2021-11-03 | AUTOMATED SOLUTIONS, LLC | LENOIR, Caldwell, NC | Pass | State |
| 2021-11-03 | BOROS EAST FACILITY | MALAGA, Eddy, NM | Pass | State |
| 2021-11-03 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-03 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-03 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-03 | ENERGY TRANSFER COMPANY - DOMINATOR COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-03 | ENERGY TRANSFER COMPANY - DOMINATOR COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-03 | CONSOLIDATED HUNTINGTON VALLEY/MOONEY BASIN MINING OPERATIONS | ELKO, White Pine, NV | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2021-11-03 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2021-11-03 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2021-11-03 | ENABLE GAS TRANSMISSION LLC / BYARS LAKE COMPRESSOR STATION | BYARS, McClain, OK | Pass | State |
| 2021-11-03 | ENABLE GAS TRANSMISSION LLC / BYARS LAKE COMPRESSOR STATION | BYARS, McClain, OK | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / COUNTY LINE COMPRESSOR STATION | DACOMA, Woods, OK | Pass | State |
| 2021-11-03 | ET GATHERING PROCESSING LLC / COUNTY LINE COMPRESSOR STATION | DACOMA, Woods, OK | Pass | State |
| 2021-11-03 | TEXAS EASTERN TRANS LP/LILLY STA | LILLY, Cambria, PA | Pass | State |
| 2021-11-03 | AMRIZE CEMENT INC/WHITEHALL PLT — high-priority violation on file | WHITEHALL, Lehigh, PA | Pass | State |
| 2021-11-03 | BLUESTONE PIPELINE CO OF PA/HARMONY COMP STA | SUSQUEHANNA, Susquehanna, PA | Fail | State |
| 2021-11-03 | EQM GATHERING OPCO LLC/MCINTOSH COMP STA | FINLEYVILLE, Washington, PA | Pass | State |
| 2021-11-03 | WILLIAMS FIELD SVC CO/POTTER COMP STA | KINGSLEY, Susquehanna, PA | Pass | State |
| 2021-11-03 | ENERGY TRANSFER MARKETING AND TERMINALS LP | KNOXVILLE, Knox, TN | Pass | Local |
| 2021-11-03 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2021-11-03 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2021-11-03 | AMAZON DATA SERVICES, INC. IAD-144 IAD-145 | STERLING, Loudoun, VA | Pass | State |
| 2021-11-03 | W-L CONSTRUCTION - ABINGDON ASPHALT PLANT | ABINGDON, Washington, VA | Pass | State |
| 2021-11-03 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2021-11-03 | SEATTLE-TACOMA INTERNATIONAL AIRPORT | SEATTLE, King, WA | Pass | Local |
| 2021-11-03 | UNITED GRAIN CORPORATION — high-priority violation on file | VANCOUVER, Clark, WA | Pass | Local |
| 2021-11-03 | UNITED GRAIN CORPORATION — high-priority violation on file | VANCOUVER, Clark, WA | Pass | Local |
| 2021-11-03 | ROXUL USA INC., RAN FACILITY | RANSON, Jefferson, WV | Pass | State |
| 2021-11-02 | KRONOSPAN USA — high-priority violation on file | EASTABOGA, Calhoun, AL | Pass | State |
| 2021-11-02 | KRONOSPAN USA — high-priority violation on file | EASTABOGA, Calhoun, AL | Pass | State |
| 2021-11-02 | NATIONAL CEMENT CO OF ALABAMA — high-priority violation on file | RAGLAND, St. Clair, AL | Pass | State |
| 2021-11-02 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2021-11-02 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2021-11-02 | ENABLE MISSISSIPPI RIVER TRANSMISSION, LLC - (BIGGERS COMPRESSOR STATION) | BIGGERS, Randolph, AR | Pass | State |
| 2021-11-02 | LANXESS CORPORATION - CENTRAL PLANT | EL DORADO, Union, AR | Pass | State |
| 2021-11-02 | OZARK RIDGE LANDFILL, INC. | DANVILLE, Yell, AR | Pass | State |
| 2021-11-02 | APAC CENTRAL INC.-MOUNTAIN HOME MATERIALS | MOUNTAIN HOME, Baxter, AR | Fail | State |
| 2021-11-02 | BLYTHE ENERGY LLC (FPL FLORIDA POWER) | BLYTHE, Riverside, CA | Pending | Local |
| 2021-11-02 | ARLON GRAPHICS LLC | PLACENTIA, Orange, CA | Pass | Local |
| 2021-11-02 | MINNESOTA METHANE SAN DIEGO LLC | SAN DIEGO, San Diego, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-11-02 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.