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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in 2020. It lists 33,437 stack tests recorded nationwide in 2020.