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 |
|---|---|---|---|---|
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | JG BOSWELL CO- OIL MILL | CORCORAN, Kings, CA | Pass | Local |
| 2020-11-30 | GREIF BROTHERS — high-priority violation on file | MERCED, Merced, CA | Fail | Local |
| 2020-11-30 | GREIF BROTHERS — high-priority violation on file | MERCED, Merced, CA | Fail | Local |
| 2020-11-30 | GREIF BROTHERS — high-priority violation on file | MERCED, Merced, CA | Fail | Local |
| 2020-11-30 | EXTRACTION O&G - HFE 22-P PROD FACILITY | BERTHOUD AREA, Weld, CO | Pass | State |
| 2020-11-30 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-11-30 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-11-30 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-11-30 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-11-30 | DEVON POWER LLC | DEVON, New Haven, CT | Pass | State |
| 2020-11-30 | FCA US LLC - DETROIT ASSEMBLY COMPLEX — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2020-11-30 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2020-11-30 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2020-11-30 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2020-11-30 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2020-11-30 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2020-11-30 | DEEP ELEM LGL STATION | LOVING, Eddy, NM | Pass | State |
| 2020-11-30 | DEEP ELEM LGL STATION | LOVING, Eddy, NM | Pass | State |
| 2020-11-30 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2020-11-30 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2020-11-30 | MLA MIDSTREAM LLC / POD 7 OIL AND GAS PRODUCTION FACILITY | COTTONWOOD, Coal, OK | Pass | State |
| 2020-11-30 | DIVERSIFIED PRODUCTION LLC / HOWARD 5 19 17 1H PAD | SEILING, Dewey, OK | Pass | State |
| 2020-11-30 | FW MIDCON I LLC / MARY J 1H 25X | BRAY, Stephens, OK | Pass | State |
| 2020-11-30 | INTERNATIONAL PAPER | SPRINGFIELD, Lane, OR | Pass | Local |
| 2020-11-30 | EXCO APPLACHIA MIDSTREAM LLC/CONFER COMP STA | BURNSIDE TWP, Centre, PA | Pass | State |
| 2020-11-30 | ENTERPRISE MONT BELVIEU COMPLEX | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-11-30 | ENTERPRISE MONT BELVIEU COMPLEX | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-11-30 | ENTERPRISE MONT BELVIEU COMPLEX | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-11-30 | ENTERPRISE MONT BELVIEU COMPLEX | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-11-30 | ENTERPRISE MONT BELVIEU COMPLEX | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-11-30 | ENTERPRISE MONT BELVIEU COMPLEX | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-11-30 | ENTERPRISE MONT BELVIEU COMPLEX | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-11-30 | BLANCHARD REFINING GALVESTON BAY REFINERY — high-priority violation on file | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-11-30 | VALERO REFINING TEXAS CITY REFINERY | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-11-30 | EXXONMOBIL CHEMICAL BAYTOWN CHEMICAL PLANT — high-priority violation on file | BAYTOWN, Harris, TX | Pass | State |
| 2020-11-30 | HOUSTON TERMINAL | HOUSTON, Harris, TX | Pass | State |
| 2020-11-30 | MONUMENT CHEMICAL HOUSTON | HOUSTON, Harris, TX | Pass | State |
| 2020-11-30 | PACIFICORP HUNTER | UTAH, Undetermined, UT | Pass | State |
| 2020-11-30 | OSI INDUSTRIES LLC | FORT ATKINSON, Jefferson, WI | N/A | State |
| 2020-11-27 | TGP COMPRESSOR STATION 233 | YORK, Livingston, NY | Pass | State |
| 2020-11-27 | INTER POWER AHLCON LP/COLVER POWER PROJ — high-priority violation on file | COLVER, Cambria, PA | Pass | State |
| 2020-11-26 | TAMPA ELECTRIC COMPANY (TEC) | GIBSONTON, Hillsborough, FL | Pass | State |
| 2020-11-26 | TAMPA ELECTRIC COMPANY (TEC) | GIBSONTON, Hillsborough, FL | Pass | State |
| 2020-11-25 | RIVERBEND COMPRESSOR STATION | ROOSEVELT, Duchesne, UT | Pass | U.S. EPA |
| 2020-11-25 | RIVERBEND COMPRESSOR STATION | ROOSEVELT, Duchesne, UT | Pass | U.S. EPA |
| 2020-11-25 | GOLD BOND BUILDING PRODUCTS, LLC | GIBSONTON, Hillsborough, FL | Pass | State |
| 2020-11-25 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2020-11-25 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2020-11-25 | GREYLOCK MIDSTREAM LLC/KUHL-SKIB COMP STA | JEFFERSON, Greene, PA | Pass | State |
| 2020-11-25 | ACME BRICK ELGIN PLANT | ELGIN, Bastrop, TX | Pass | State |
| 2020-11-25 | WISCONSIN ELECTRIC POWER COMPANY D/B/A WE ENERGIES-PARIS GENERATING STATION | UNION GROVE, Kenosha, WI | Pass | State |
| 2020-11-24 | RIVERBEND COMPRESSOR STATION | ROOSEVELT, Duchesne, UT | Pass | U.S. EPA |
| 2020-11-24 | RIVERBEND COMPRESSOR STATION | ROOSEVELT, Duchesne, UT | Pass | U.S. EPA |
| 2020-11-24 | WESTROCK MILL COMPANY LLC | DEMOPOLIS, Marengo, AL | Pass | State |
| 2020-11-24 | WESTROCK MILL COMPANY LLC | DEMOPOLIS, Marengo, AL | Pass | State |
| 2020-11-24 | AM/NS CALVERT LLC | CALVERT, Mobile, AL | Pass | State |
| 2020-11-24 | AM/NS CALVERT LLC | CALVERT, Mobile, AL | Pass | State |
| 2020-11-24 | BIG RIVER STEEL LLC | OSCEOLA, Mississippi, AR | Pass | State |
| 2020-11-24 | PINTO VALLEY MINE | MIAMI, Gila, AZ | Pass | State |
| 2020-11-24 | SILGAN CONTAINERS | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2020-11-24 | STEELSCAPE, INC | RANCHO CUCAMONGA, San Bernardino, CA | Pass | Local |
| 2020-11-24 | STEELSCAPE, INC | RANCHO CUCAMONGA, San Bernardino, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.