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 |
|---|---|---|---|---|
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | AMSTED RAIL - COLUMBUS PLANT | GROVEPORT, Franklin, OH | Pass | State |
| 2020-10-21 | CARDINAL POWER PLANT (CARDINAL OPERATING COMPANY) | BRILLIANT, Jefferson, OH | Pass | State |
| 2020-10-21 | CARDINAL POWER PLANT (CARDINAL OPERATING COMPANY) | BRILLIANT, Jefferson, OH | Pass | State |
| 2020-10-21 | ASCENT RESOURCES - UTICA LLC - KRINKE MTP JF | MOUNT PLEASANT, Jefferson, OH | Pass | State |
| 2020-10-21 | ASCENT RESOURCES - UTICA LLC - KRINKE MTP JF | MOUNT PLEASANT, Jefferson, OH | Pass | State |
| 2020-10-21 | ASCENT RESOURCES - UTICA LLC - KRINKE MTP JF | MOUNT PLEASANT, Jefferson, OH | Pass | State |
| 2020-10-21 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2020-10-21 | DEVON ENERGY PRODUCTION CO LP / EVERETT 12 1 PAD 2 | GREENFIELD, Blaine, OK | Pass | State |
| 2020-10-21 | DEVON ENERGY PRODUCTION CO LP / CENTAUR 7 6 PAD 1 | GREENFIELD, Blaine, OK | Pass | State |
| 2020-10-21 | CONTINENTAL RESOURCES / Z 21 2 17 8XHW LAMBRECHT 3 17 20XHW | MIDDLEBERG, Grady, OK | Pass | State |
| 2020-10-21 | BCE MACH III LLC / WHISKEYFEET 1606 3 2MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-10-21 | BCE MACH III LLC / WHISKEYFEET 1606 3 2MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-10-21 | SUPERIOR MIDSTREAM LLC / CASHION GAS PLANT — high-priority violation on file | CASHION, Logan, OK | Pass | State |
| 2020-10-21 | PONDEROSA GATHERING LLC / PONDEROSA COMPRESSOR STATION 1 | QUINTON, Pittsburg, OK | Pass | State |
| 2020-10-21 | ERIE SEWER AUTHORITY/ERIE WWTP — high-priority violation on file | ERIE, Erie, PA | Fail | State |
| 2020-10-21 | FRY COMMUNICATIONS INC/BLDG 1 & 2 | MECHANICSBURG, Cumberland, PA | Pass | State |
| 2020-10-21 | YUASA BATTERY INC/LAURELDALE | LAURELDALE, Berks, PA | Fail | State |
| 2020-10-21 | ENERGY DEVS MORGANTOWN LLC/CAERNARVON TWP | MORGANTOWN, Berks, PA | Pass | State |
| 2020-10-21 | NEXTERA RENEWABLE FUELS LLC/FREY FARM CRESWELL LDFL | CONESTOGA, Lancaster, PA | Pass | State |
| 2020-10-21 | MAINESBURG GS LP/MAINESBURG GATHERING STA | MANSFIELD, Tioga, PA | Pass | State |
| 2020-10-21 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Pass | State |
| 2020-10-21 | C R JACKSON INC - SUMTER ASPHALT PLANT | SUMTER, Sumter, SC | Pass | State |
| 2020-10-21 | SIGNAL MOUNTAIN CEMENT COMPANY D/B/A BUZZI UNICEM USA | CHATTANOOGA, Hamilton, TN | Pass | Local |
| 2020-10-21 | COVESTRO — high-priority violation on file | BAYTOWN, Chambers, TX | Pass | State |
| 2020-10-21 | BLANCHARD REFINING GALVESTON BAY REFINERY — high-priority violation on file | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-10-21 | BLANCHARD REFINING GALVESTON BAY REFINERY — high-priority violation on file | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-10-21 | OWENS CORNING HOUSTON ROOFING AND MANUFACTURING FACILITY | HOUSTON, Harris, TX | Pass | State |
| 2020-10-21 | COVENTRY CLEAN ENERGY CORPORATION — high-priority violation on file | COVENTRY, Orleans, VT | Pass | State |
| 2020-10-21 | GUY BENNETT LUMBER | CLARKSTON, Asotin, WA | Pass | State |
| 2020-10-21 | SEH AMERICA | VANCOUVER, Clark, WA | Pass | Local |
| 2020-10-21 | SEH AMERICA | VANCOUVER, Clark, WA | Pass | Local |
| 2020-10-21 | SEH AMERICA | VANCOUVER, Clark, WA | Pass | Local |
| 2020-10-21 | LANXESS CORPORATION — high-priority violation on file | KALAMA, Cowlitz, WA | Pass | Local |
| 2020-10-21 | PUGET SOUND ENERGY (WA NATURAL GAS) | CHEHALIS, Lewis, WA | Pass | Local |
| 2020-10-21 | UNITED ETHANOL LLC | MILTON, Rusk, WI | Pass | State |
| 2020-10-21 | QUIKRETE CONSTRUCTION MATERIALS, LLC, QUIKRETE CEMENT — high-priority violation on file | MARTINSBURG, Berkeley, WV | Pass | State |
| 2020-10-21 | QUIKRETE CONSTRUCTION MATERIALS, LLC, QUIKRETE CEMENT — high-priority violation on file | MARTINSBURG, Berkeley, WV | Pass | State |
| 2020-10-21 | CARTER CREEK GAS PLANT (HILCORP ENERGY CO) | EVANSTON, Uinta, WY | Pass | State |
| 2020-10-20 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-10-20 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-10-20 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-10-20 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-10-20 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-10-20 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-10-20 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-10-20 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-10-20 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-10-20 | CEMEX SOUTHEAST LLC | DEMOPOLIS, Marengo, AL | Pass | State |
| 2020-10-20 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2020-10-20 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2020-10-20 | GREEN BAY PACKAGING, INC. - ARKANSAS KRAFT DIVISION | MORRILTON, Conway, AR | Pass | State |
| 2020-10-20 | DESOTO GATHERING COMPANY, LLC - PHILLIPS MOUNTAIN CPF-2 | CLEVELAND, Conway, AR | Pass | State |
| 2020-10-20 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2020-10-20 | PG&E- HINKLEY | HINKLEY, San Bernardino, CA | Pass | Local |
| 2020-10-20 | EL SEGUNDO ENERGY CENTER LLC | EL SEGUNDO, Los Angeles, CA | Pass | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2020-10-20 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.