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 |
|---|---|---|---|---|
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Pass | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Pass | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Fail | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Pass | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Fail | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Pass | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Pass | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Pass | State |
| 2020-11-20 | WARREN F BEASLEY POWER STATION (DEMEC) | SMYRNA, Kent, DE | Pass | State |
| 2020-11-20 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-11-20 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-11-20 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-11-20 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-11-20 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-11-20 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-11-20 | AGRI-PRODUCTS, INC. | FITZGERALD, Ben Hill, GA | Pass | State |
| 2020-11-20 | AGRI-PRODUCTS, INC. | FITZGERALD, Ben Hill, GA | Pass | State |
| 2020-11-20 | SCIENTIFIC GAMES, LLC | ALPHARETTA, Forsyth, GA | Fail | State |
| 2020-11-20 | HONDA DEVELOPMENT & MANUFACTURING OF AMERICA LLC INDIANA AUT — high-priority violation on file | GREENSBURG, Decatur, IN | Pass | State |
| 2020-11-20 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2020-11-20 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2020-11-20 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2020-11-20 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2020-11-20 | TISBURY TOWING & TRANSPORTATION | NEW BEDFORD, Bristol, MA | Pending | State |
| 2020-11-20 | AUDUBON MATERIALS, LLC - SUGAR CREEK PLANT | SUGAR CREEK, Jackson, MO | Pending | State |
| 2020-11-20 | KINGSFORD MANUFACTURING COMPANY | BELLE, Maries, MO | Pending | State |
| 2020-11-20 | IKE WILLIAMSON SAND PIT, ACB | SHALLOTTE, Brunswick, NC | Pass | State |
| 2020-11-20 | CRAVEN COUNTY WOOD ENERGY, L.P. | NEW BERN, Craven, NC | Pass | State |
| 2020-11-20 | SAFETY KLEEN CORP LINDEN RECYCLE CTR | LINDEN, Union, NJ | Pass | State |
| 2020-11-20 | TRISTE DRAW 25 WEST BATTERY | MALAGA, Lea, NM | Pass | State |
| 2020-11-20 | CHARLES LING WEST FED TANK BATTERY | JAL, Lea, NM | Pass | State |
| 2020-11-20 | PLASKOLITE, LLC. | COLUMBUS, Franklin, OH | Pass | State |
| 2020-11-20 | ROBERT P. MONE PLANT | CONVOY, Van Wert, OH | Pass | State |
| 2020-11-20 | ROBERT P. MONE PLANT | CONVOY, Van Wert, OH | Pass | State |
| 2020-11-20 | MARKWEST OKLAHOMA GAS CO LLC / OKARCHE COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2020-11-20 | ONEOK HYDROCARBON LP / MEDFORD FRACTIONATOR — high-priority violation on file | MEDFORD, Grant, OK | Pass | State |
| 2020-11-20 | PA STATE UNIV/UNIV PARK CAMPUS | UNIVERSITY PARK, Centre, PA | Pass | State |
| 2020-11-20 | CALUMET KARNS CITY REF LLC/KARNS CITY | KARNS CITY, Butler, PA | Pass | State |
| 2020-11-20 | SEWARD GENERATING STATION/SEWARD | NEW FLORENCE, Indiana, PA | Pass | State |
| 2020-11-20 | HOWARD COMPRESSOR STATION | ATHENS, Ellis, TX | Pass | State |
| 2020-11-20 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2020-11-20 | WHEELABRATOR PORTSMOUTH INC - RDF FACILITY | PORTSMOUTH, Portsmouth (city), VA | Pass | State |
| 2020-11-20 | AIR LIQUIDE AMERICA LP | ANACORTES, Skagit, WA | Pass | Local |
| 2020-11-20 | OWENS-BROCKWAY GLASS CONTAINER, INC. — high-priority violation on file | KALAMA, Cowlitz, WA | Pass | Local |
| 2020-11-20 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | PROCTOR, Marshall, WV | Pass | State |
| 2020-11-19 | SOUTHERN NATURAL GAS | HEFLIN, Cleburne, AL | Pass | State |
| 2020-11-19 | SOUTHERN NATURAL GAS | HEFLIN, Cleburne, AL | Pass | State |
| 2020-11-19 | OUTOKUMPU STAINLESS USA, LLC | CALVERT, Mobile, AL | Pass | State |
| 2020-11-19 | OUTOKUMPU STAINLESS USA, LLC | CALVERT, Mobile, AL | Pass | State |
| 2020-11-19 | OUTOKUMPU STAINLESS USA, LLC | CALVERT, Mobile, AL | Pass | State |
| 2020-11-19 | OUTOKUMPU STAINLESS USA, LLC | CALVERT, Mobile, AL | Pass | State |
| 2020-11-19 | HUNT REFINING COMPANY | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2020-11-19 | HUNT REFINING COMPANY | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2020-11-19 | WARRIOR MET COAL GAS, LLC | BROOKWOOD, Tuscaloosa, AL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.