EPA Air · stack tests by year
Air-emissions stack tests in 2020
- 33,437Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2020
- California 15,352
- Ohio 2,194
- Florida 1,532
- Oklahoma 1,517
- Indiana 1,473
- Georgia 1,147
- New Mexico 846
- Pennsylvania 725
- Alabama 674
- Texas 617
- Missouri 607
- Arkansas 589
- Mississippi 438
- Colorado 429
- Washington 407
- Iowa 355
- North Carolina 274
- Wyoming 235
- Wisconsin 229
- Michigan 222
- South Carolina 221
- Montana 217
- Minnesota 213
- Delaware 211
- Kentucky 184
- West Virginia 175
- Utah 158
- Tennessee 149
- Kansas 144
- Nebraska 142
- Alaska 141
- Maine 136
- Nevada 134
- Virginia 132
- Illinois 129
- North Dakota 129
- New Jersey 122
- Connecticut 110
- Arizona 97
- New York 93
- Hawaii 84
- Louisiana 83
- Idaho 81
- New Hampshire 72
- Maryland 46
- South Dakota 46
- Oregon 39
- Rhode Island 30
- District of Columbia 30
- Vermont 17
- Massachusetts 7
- Puerto Rico 3
Other years
Air-emissions stack tests recorded in 2020
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2020-10-15 | WELLBORN CABINETS INC | ASHLAND, Clay, AL | Pass | State |
| 2020-10-15 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2020-10-15 | NUCOR COATINGS CORPORATION - BLYTHEVILLE PLANT | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2020-10-15 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | MOSS LANDING, Monterey, CA | Pass | Local |
| 2020-10-15 | AERA ENERGY LLC | SAN ARDO, Monterey, CA | Pass | Local |
| 2020-10-15 | PROCTER & GAMBLE | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2020-10-15 | SACRAMENTO AREA SEWER DISTRICT | ELK GROVE, Sacramento, CA | Pass | Local |
| 2020-10-15 | TESORO REFINING & MARKETING CO, LLC — high-priority violation on file | CARSON, Los Angeles, CA | Pass | Local |
| 2020-10-15 | TESORO REFINING & MARKETING CO, LLC — high-priority violation on file | CARSON, Los Angeles, CA | Pass | Local |
| 2020-10-15 | TESORO REFINING & MARKETING CO, LLC — high-priority violation on file | CARSON, Los Angeles, CA | Pass | Local |
| 2020-10-15 | TORRANCE REFINING COMPANY LLC | TORRANCE, Los Angeles, CA | Pass | Local |
| 2020-10-15 | TORRANCE REFINING COMPANY LLC | TORRANCE, Los Angeles, CA | Pass | Local |
| 2020-10-15 | TORRANCE REFINING COMPANY LLC | TORRANCE, Los Angeles, CA | Pass | Local |
| 2020-10-15 | TORRANCE REFINING COMPANY LLC | TORRANCE, Los Angeles, CA | Pass | Local |
| 2020-10-15 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | CHRISTIANA CARE HEALTH SERVICES - CHRISTIANA HOSPITAL | NEWARK, New Castle, DE | Pass | State |
| 2020-10-15 | TPSI TERMINALS LLC | TAMPA, Hillsborough, FL | Pass | State |
| 2020-10-15 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2020-10-15 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2020-10-15 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-10-15 | GERDAU AMERISTEEL US INC. | CARTERSVILLE, Bartow, GA | Pass | State |
| 2020-10-15 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2020-10-15 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2020-10-15 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2020-10-15 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2020-10-15 | BALL CONTAINER LLC ROME CAN PLANT | ROME, Floyd, GA | Pass | State |
| 2020-10-15 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Pass | State |
| 2020-10-15 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2020-10-15 | KNIFE RIVER CORP - MTN WEST 00051 | BOISE, Ada, ID | Pass | State |
| 2020-10-15 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2020-10-15 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2020-10-15 | MONARCH CEMENT (AIR) | HUMBOLDT, Allen, KS | Pass | State |
| 2020-10-15 | MILLERSVILLE LANDFILL GAS TO ELECTRICITY FACILITY | SEVERN, Anne Arundel, MD | Pass | State |
| 2020-10-15 | BLUEWATER GAS STORAGE FACILITY - COLUMBUS | COLUMBUS, St. Clair, MI | Pass | State |
| 2020-10-15 | CONTINENTAL CEMENT COMPANY LLC — high-priority violation on file | HANNIBAL, Ralls, MO | Pass | State |
| 2020-10-15 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pass | State |
| 2020-10-15 | COLUMBIA PLYWOOD CORPORATION - COLUMBIA CAROLINA DIVISION | OLD FORT, McDowell, NC | Pass | State |
| 2020-10-15 | GREDE II - BISCOE, LLC — high-priority violation on file | BISCOE, Montgomery, NC | Pending | State |
| 2020-10-15 | ASH GROVE CEMENT CO — high-priority violation on file | LOUISVILLE, Cass, NE | Pass | State |
| 2020-10-15 | MAGELLAN PIPELINE COMPANY LP | OMAHA, Douglas, NE | Pass | State |
| 2020-10-15 | TURNKEY RECYCLING & ENVIRONMENTAL ENTERPRISES | ROCHESTER, Strafford, NH | Pass | State |
| 2020-10-15 | CHAPARRAL GAS PLANT | LOCO HILLS, Eddy, NM | Pass | State |
| 2020-10-15 | FLORIDA CANYON MINE | IMLAY, Pershing, NV | Fail | State |
| 2020-10-15 | ERWIN MANUFACTURING COMPLEX | ERWIN, Steuben, NY | Pass | State |
| 2020-10-15 | ASCENT RESOURCES - UTICA, LLC - WAYNE A (NAC B WYN JF) | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2020-10-15 | ASCENT RESOURCES - UTICA, LLC - WAYNE A (NAC B WYN JF) | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2020-10-15 | ASCENT RESOURCES - UTICA, LLC - WAYNE A (NAC B WYN JF) | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2020-10-15 | ASCENT RESOURCES - UTICA LLC - DICKSON CRC JF | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2020-10-15 | ASCENT RESOURCES - UTICA LLC - DICKSON CRC JF | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2020-10-15 | ASCENT RESOURCES - UTICA LLC - DICKSON CRC JF | BLOOMINGDALE, Jefferson, OH | Pass | State |
| 2020-10-15 | EI CERAMICS LLC | SHARONVILLE, Hamilton, OH | Pass | State |
| 2020-10-15 | EI CERAMICS LLC | SHARONVILLE, Hamilton, OH | Pass | State |
| 2020-10-15 | EI CERAMICS LLC | SHARONVILLE, Hamilton, OH | Pass | State |
| 2020-10-15 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2020-10-15 | DEVON ENERGY PRODUCTION CO LP / SONOYTA 23 26 PAD 2 | HITCHCOCK, Blaine, OK | Pass | State |
| 2020-10-15 | DEVON ENERGY PRODUCTION CO LP / FLEENOR 5 8 17 PAD 2 | OMEGA, Blaine, OK | Pass | State |
| 2020-10-15 | MARKWEST OKLAHOMA GAS CO LLC / SPRAGUE COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2020-10-15 | ET GATHERING PROCESSING LLC / FOSTER COMPRESSOR STATION | ELMORE CITY, Garvin, OK | Pass | State |
| 2020-10-15 | ET GATHERING PROCESSING LLC / FRISCO COMPRESSOR STATION | CHICKASHA, Grady, OK | Pass | State |
| 2020-10-15 | EOG RESOURCES INC / DESKINS CTB | BLANCHARD, Grady, OK | Pass | State |
| 2020-10-15 | MARKWEST OKLAHOMA GAS CO LLC / KINGFISHER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-10-15 | MARKWEST OKLAHOMA GAS CO LLC / KINGFISHER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-10-15 | BCE MACH III LLC / ORBIT 1606 6 23MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-10-15 | DEVON ENERGY PRODUCTION CO LP / PONY EXPRESS 27 PAD2 | OMEGA, Kingfisher, OK | Pass | State |
| 2020-10-15 | DEVON ENERGY PRODUCTION CO LP / CASCADE 14 23 PAD 2 | OMEGA, Kingfisher, OK | Pass | State |
| 2020-10-15 | OG AND E / RIVER VALLEY GENERATING STATION | PANAMA, Le Flore, OK | Pass | State |
| 2020-10-15 | SUPERIOR MIDSTREAM LLC / CASHION NORTH BOOSTER STATION (WASWO) | CASHION, Logan, OK | Pass | State |
| 2020-10-15 | SUPERIOR MIDSTREAM LLC / CASHION NORTH BOOSTER STATION (WASWO) | CASHION, Logan, OK | Pass | State |
| 2020-10-15 | US DEPT OF DEFENSE/LETTERKENNY ARMY DEPOT | CHAMBERSBURG, Franklin, PA | Pass | State |
| 2020-10-15 | ERIE SEWER AUTHORITY/ERIE WWTP — high-priority violation on file | ERIE, Erie, PA | Fail | State |
| 2020-10-15 | YORK CNTY SOLID WASTE/YORK CNTY RESOURCE RECOVERY — high-priority violation on file | YORK, York, PA | Pass | State |
| 2020-10-15 | MARKWEST LIBERTY BLUESTONE LLC/SARSEN GAS PROC PLT | EVANS CITY, Butler, PA | Pass | State |
| 2020-10-15 | ALLAN MYERS LP DBA ALLAN MYERS MATERIALS/READING ASPH PLT | READING, Berks, PA | Pass | State |
| 2020-10-15 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2020-10-15 | CANFOR SOUTHERN PINE - CAMDEN PLANT | CASSATT, Kershaw, SC | Pass | State |
| 2020-10-15 | GLOBAL COMPANIES - SPARTANBURG TERMINAL | SPARTANBURG, Spartanburg, SC | Pass | State |
| 2020-10-15 | EL PASO NATURAL GAS COMPANY - BONDAD COMPRESSOR STATION | DURANGO, La Plata, CO | Pass | State |
| 2020-10-15 | ARCONIC US LLC | ALCOA, Blount, TN | Pass | State |
| 2020-10-15 | INTERSTATE BRICK | WEST JORDAN, Salt Lake, UT | Pass | State |
| 2020-10-15 | NTT GLOBAL DATA CENTERS AMERICAS, INC. | ASHBURN, Loudoun, VA | Pass | State |
| 2020-10-15 | UNITED GRAIN CORPORATION — high-priority violation on file | VANCOUVER, Clark, WA | Pass | Local |
| 2020-10-15 | UNITED GRAIN CORPORATION — high-priority violation on file | VANCOUVER, Clark, WA | Pass | Local |
| 2020-10-15 | CASPER SOLID WASTE MANAGEMENT FACILITY (CITY OF CASPER SOLID WASTE DIVISION) | CASPER, Natrona, WY | Pass | State |
| 2020-10-14 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2020-10-14 | ROBERT'S TRUST COMPRESSOR STATION | DUNN COUNTY, Dunn, ND | Pass | U.S. EPA |
| 2020-10-14 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2020-10-14 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2020-10-14 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2020-10-14 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2020-10-14 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2020-10-14 | GRANT GARRETT EXCAVATING, INC. - VAUGHN ASPHALT PLANT CRUSHER | BENTONVILLE, Benton, AR | Pass | State |
| 2020-10-14 | SPI - LINCOLN — high-priority violation on file | LINCOLN, Placer, CA | Pass | Local |
| 2020-10-14 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.