EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | GARFIELD FACILITY LLC — high-priority violation on file | MUNCIE, Delaware, IN | Pass | State |
| 2023-08-09 | SABIC INNOVATIVE PLASTICS US LLC | MOUNT VERNON, Posey, IN | Pass | State |
| 2023-08-09 | REPUBLIC SERVICES OF KY LLC - OHIO CO LANDFILL INC | BEAVER DAM, Ohio, KY | Pass | State |
| 2023-08-09 | REPUBLIC SERVICES OF KY - VALLEY VIEW LANDFILL | SULPHUR, Trimble, KY | Pass | State |
| 2023-08-09 | LOUISVILLE GAS & ELECTRIC COMPANY, MILL CREEK GENERATING STATION | LOUISVILLE, Jefferson, KY | Pending | Local |
| 2023-08-09 | RAVEN POWER FORT SMALLWOOD LLC | CURTIS BAY, Anne Arundel, MD | Pass | State |
| 2023-08-09 | VENTRA FOWLERVILLE LLC — high-priority violation on file | FOWLERVILLE, Livingston, MI | Fail | State |
| 2023-08-09 | VENTRA FOWLERVILLE LLC — high-priority violation on file | FOWLERVILLE, Livingston, MI | Fail | State |
| 2023-08-09 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2023-08-09 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2023-08-09 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2023-08-09 | TRANSCONTINENTAL GAS PIPE LINE COMPANY, LLC - STATION 160 | REIDSVILLE, Rockingham, NC | Pending | State |
| 2023-08-09 | PROAMPAC AC US LLC | MATTHEWS, Mecklenburg, NC | Fail | Local |
| 2023-08-09 | WILDCAT COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-08-09 | WILDCAT COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-08-09 | WILDCAT COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-08-09 | WILDCAT COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-08-09 | PIRATE STATE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-08-09 | VANDELAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-08-09 | ASCENT RESOURCES - UTICA LLC - BLESSED RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-08-09 | ASCENT RESOURCES - UTICA LLC - BLESSED RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-08-09 | ASCENT RESOURCES - UTICA LLC - BLESSED RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2023-08-09 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-08-09 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-08-09 | ET GATHERING PROCESSING LLC / WINTER CREEK COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2023-08-09 | ET GATHERING PROCESSING LLC / WINTER CREEK COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2023-08-09 | ET GATHERING PROCESSING LLC / WINTER CREEK COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2023-08-09 | ET GATHERING PROCESSING LLC / WINTER CREEK COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2023-08-09 | MARKWEST OKLAHOMA GAS CO LLC / LOYAL COMPRESSOR STATION | LOYAL, Kingfisher, OK | Pass | State |
| 2023-08-09 | BCE MACH III LLC / KILGORE 1705 1 4MH PAD 3 4MH LNU 91 4H | CRESCENT, Kingfisher, OK | Pass | State |
| 2023-08-09 | BCE MACH III LLC / LNU 80 5HO LNU 81 4HO LNU 53 2HO | DOVER, Kingfisher, OK | Pass | State |
| 2023-08-09 | EBENSBURG POWER CO/EBENSBURG COGENERATION PLT | EBENSBURG, Cambria, PA | Pass | State |
| 2023-08-09 | RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file | TREMONT, Schuylkill, PA | Pass | State |
| 2023-08-09 | LAUREL MACADAM LLC/SPRINGHILL ASPHALT PLT | LAKE LYNN, Fayette, PA | Pending | State |
| 2023-08-09 | LONGHORN PAD C/ELK | WEEDVILLE, Elk, PA | Pass | State |
| 2023-08-09 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | PINEVILLE, Berkeley, SC | Pass | State |
| 2023-08-09 | NEW-INDY CATAWBA LLC | CATAWBA, York, SC | Pass | State |
| 2023-08-09 | TENNESSEE VALLEY AUTHORITY (TVA) - KINGSTON FOSSIL PLANT — high-priority violation on file | HARRIMAN, Roane, TN | Pass | State |
| 2023-08-09 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2023-08-09 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2023-08-09 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2023-08-09 | ENVIVA SOUTHAMPTON | FRANKLIN, Southampton, VA | Pass | State |
| 2023-08-09 | ANACORTES WWTP SEWAGE SLUDGE INCINERATOR | ANACORTES, Skagit, WA | Pass | Local |
| 2023-08-09 | PUGET SOUND ENERGY FREDERICKSON | TACOMA, Pierce, WA | Pass | Local |
| 2023-08-09 | WI PUBLIC SERVICE CORP - JP PULLIAM PLANT | GREEN BAY, Brown, WI | Pass | State |
| 2023-08-09 | HYDRITE CHEMICAL CO. — high-priority violation on file | COTTAGE GROVE, Dane, WI | Fail | State |
| 2023-08-09 | PPG INDUSTRIES — high-priority violation on file | OAK CREEK, Monroe, WI | Pass | State |
| 2023-08-09 | AHLSTROM NA SPECIALTY SOLUTIONS LLC — high-priority violation on file | KAUKAUNA, Ozaukee, WI | Pass | State |
| 2023-08-09 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2023-08-09 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2023-08-09 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2023-08-09 | MPLX TERMINALS LLC, KENOVA | KENOVA, Wayne, WV | Pass | State |
| 2023-08-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2023-08-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2023-08-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2023-08-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2023-08-09 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-08-09 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-08-09 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-08-09 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-08-08 | GOLDEN VALLEY ELECTRIC ASSOCIATION / HEALY POWER PLANT — high-priority violation on file | HEALY, Denali, AK | Pass | State |
| 2023-08-08 | GEORGIA PACIFIC | PENNINGTON, Choctaw, AL | Pass | State |
| 2023-08-08 | GP CELLULOSE ALABAMA RIVER CELLULOSE LLC | PERDUE HILL, Monroe, AL | Pass | State |
| 2023-08-08 | GP CELLULOSE ALABAMA RIVER CELLULOSE LLC | PERDUE HILL, Monroe, AL | Pass | State |
| 2023-08-08 | DESOTO GATHERING COMPANY, LLC - YELLOWSTONE CPF-3 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2023-08-08 | AES HUNTINGTON BEACH LLC | HUNTINGTON BEACH, Orange, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-08 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-08 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-08 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-08 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-08 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.