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 |
|---|---|---|---|---|
| 2023-10-04 | C W MATTHEWS CONTRACTING CO INC | VILLA RICA, Carroll, GA | Pass | State |
| 2023-10-04 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-04 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-04 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-04 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-04 | DIXIELAND EQUIPMENT SALES DBA DIXIELAND PALLET COMPANY — high-priority violation on file | TALMO, Jackson, GA | Pass | State |
| 2023-10-04 | MECO - PALAAU | PALAAU, Maui, HI | Pass | State |
| 2023-10-04 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2023-10-04 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2023-10-04 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2023-10-04 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2023-10-04 | ILLINOIS POWER GENERATING CO | NEWTON, Jasper, IL | Pass | State |
| 2023-10-04 | MEXICHEM SPECIALTY RESINS INC — high-priority violation on file | HENRY, Marshall, IL | Pass | State |
| 2023-10-04 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-10-04 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-10-04 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-10-04 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-10-04 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-04 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-04 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-04 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-04 | CHEVRON USA, INC, DBA CHEVRON PRODUCTS COMPANY, COLLINS TERMINAL | COLLINS, Covington, MS | Pass | State |
| 2023-10-04 | MISSISSIPPI POWER COMPANY, DAVID M RATCLIFFE | DEKALB, Kemper, MS | Pass | State |
| 2023-10-04 | MISSISSIPPI POWER COMPANY, DAVID M RATCLIFFE | DEKALB, Kemper, MS | Pass | State |
| 2023-10-04 | APAC MISSISSIPPI INC, HAMILTON HIGHWAY 45, SCRIBNER PIT | HAMILTON, Monroe, MS | Pass | State |
| 2023-10-04 | APAC MISSISSIPPI INC, HAMILTON HIGHWAY 45, SCRIBNER PIT | HAMILTON, Monroe, MS | Pass | State |
| 2023-10-04 | TEXTILES COATED INTERNATIONAL | MANCHESTER, Hillsborough, NH | Pass | State |
| 2023-10-04 | FADEAWAY RIDGE COMPRESSOR STATION | ARTESIA, Eddy, NM | Pass | State |
| 2023-10-04 | FADEAWAY RIDGE COMPRESSOR STATION | ARTESIA, Eddy, NM | Pass | State |
| 2023-10-04 | WHITE CITY ROAD COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-04 | STRAWBERRY FIELDS BOOSTER STATION | LOCO HILLS, Eddy, NM | Pass | State |
| 2023-10-04 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-10-04 | MARK WEST - BELL LAKE SOUTH COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-10-04 | MARK WEST - BELL LAKE SOUTH COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-10-04 | EOG RESOURCES, INC. - BARNHART 36-12-5 PAD | KILGORE, Carroll, OH | Pass | State |
| 2023-10-04 | EOG RESOURCES, INC. - BARNHART 36-12-5 PAD | KILGORE, Carroll, OH | Pass | State |
| 2023-10-04 | EOG RESOURCES, INC. - BARNHART 36-12-5 PAD | KILGORE, Carroll, OH | Pass | State |
| 2023-10-04 | ET GATHERING PROCESSING LLC / FOSTER COMPRESSOR STATION | ELMORE CITY, Garvin, OK | Pass | State |
| 2023-10-04 | PEOPLES ELECTRIC COOP / BUZZARD FLOP | GERTY, Hughes, OK | Pass | State |
| 2023-10-04 | PEOPLES ELECTRIC COOP / MARKWEST | STUART, Pittsburg, OK | Pass | State |
| 2023-10-04 | ONEOK FIELD SERVICES CO LLC / WEST DURHAM COMPRESSOR STATION | CRAWFORD, Roger Mills, OK | Pass | State |
| 2023-10-04 | TERRA NITROGEN LP / VERDIGRIS PLANT | CLAREMORE, Rogers, OK | Pass | State |
| 2023-10-04 | ET GATHERING PROCESSING LLC / VANARKEL COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2023-10-04 | ALLENTOWN TERM DE LLC/ALLENTOWN TERM | ALLENTOWN, Lehigh, PA | Pass | State |
| 2023-10-04 | TENNESSEE GAS PIPELINE CO LLC/COMP STA 321 | CLIFFORD, Susquehanna, PA | Pass | State |
| 2023-10-04 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2023-10-04 | DIVERSIFIED PROD LLC/NV 34 WELLPAD — high-priority violation on file | PROSPERITY, Washington, PA | Pass | State |
| 2023-10-04 | CABOT OIL & GAS CORP/KROPA, T. PAD 1 | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2023-10-04 | RI RESOURCE RECOVERY CORP-CENTRAL LNDFL | JOHNSTON, TOWN OF, Providence, RI | Pass | State |
| 2023-10-04 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2023-10-04 | FORMOSA POINT COMFORT PLANT — high-priority violation on file | POINT COMFORT, Calhoun, TX | N/A | State |
| 2023-10-04 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2023-10-04 | AMAZON DATA SERVICES INC IAD-120/121/122 | STERLING, Loudoun, VA | Pass | State |
| 2023-10-04 | NOVA MANGO FARMS LLC | BRISTOW, Prince William, VA | Pass | State |
| 2023-10-04 | SI NVA02D, LLC | MANASSAS, Prince William, VA | Pass | State |
| 2023-10-04 | TESORO REFINING AND MARKETING COMPANY | ANACORTES, Skagit, WA | Pass | Local |
| 2023-10-04 | HAMPTON LUMBER MILLS - RANDLE — high-priority violation on file | RANDLE, Lewis, WA | Pass | Local |
| 2023-10-04 | AMCOR PACKAGING, INC. - OSHKOSH NORTH | OSHKOSH, Wood, WI | Pass | State |
| 2023-10-04 | COLUMBIA WEST VIRGINIA CORPORATION, CRAIGSVILLE | CRAIGSVILLE, Nicholas, WV | Pass | State |
| 2023-10-04 | APPALACHIA MIDSTREAM SERVICES, L.L.C., PIONEER FACILITY | WHEELING, Ohio, WV | Pass | State |
| 2023-10-04 | COLUMBIA GAS TRANSMISSION, LLC, CLEVELAND | KANAWHA HEAD, Upshur, WV | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | PRCC COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-10-04 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-03 | CMBIOMASS — high-priority violation on file | JACKSON, Clarke, AL | Pass | State |
| 2023-10-03 | GULFSTREAM NATURAL GAS SYSTEM LLC | CODEN, Mobile, AL | Pass | State |
| 2023-10-03 | ALABAMA POWER COMPANY (MILLER POWER PLANT) | QUINTON, Jefferson, AL | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | NUSTAR TERMINALS OPS PARTNERSHIP LP | STOCKTON, San Joaquin, CA | Pass | Local |
| 2023-10-03 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-10-03 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-10-03 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2023-10-03 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.