EPA Air · stack tests by year
Air-emissions stack tests in 2021
- 35,950Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2021
- California 17,676
- Ohio 2,582
- Florida 1,540
- Indiana 1,495
- Oklahoma 1,318
- Georgia 1,189
- New Mexico 841
- Pennsylvania 788
- Alabama 621
- Mississippi 589
- Texas 574
- Arkansas 518
- Missouri 515
- Colorado 407
- Iowa 368
- Washington 334
- North Carolina 273
- Michigan 256
- Wisconsin 239
- Wyoming 235
- West Virginia 225
- Kentucky 222
- Delaware 222
- Montana 220
- South Carolina 217
- Minnesota 209
- Kansas 177
- Alaska 143
- Illinois 142
- Utah 140
- Nevada 136
- Virginia 131
- Nebraska 117
- Maine 110
- New Jersey 110
- New York 103
- Connecticut 99
- Tennessee 98
- North Dakota 93
- Arizona 93
- Idaho 90
- Louisiana 69
- Hawaii 64
- Maryland 56
- South Dakota 55
- District of Columbia 54
- New Hampshire 53
- Oregon 45
- Rhode Island 34
- Massachusetts 29
- Puerto Rico 19
- Vermont 17
Other years
Air-emissions stack tests recorded in 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-10-26 | HUNTERDON MEDICAL CENTER CORP | RARITAN, TOWNSHIP OF, Hunterdon, NJ | Pass | State |
| 2021-10-26 | B BANKER FACILITY | LOVING, Eddy, NM | Pass | State |
| 2021-10-26 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2021-10-26 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2021-10-26 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2021-10-26 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2021-10-26 | LESLIE FEDERAL EAST FACILITY | JAL, Lea, NM | Pass | State |
| 2021-10-26 | DARK HORSE TREATING FACILITY — high-priority violation on file | JAL, Lea, NM | Pass | State |
| 2021-10-26 | DARK HORSE TREATING FACILITY — high-priority violation on file | JAL, Lea, NM | Incomplete | State |
| 2021-10-26 | TRIVIUM PACKAGING US INC | CONKLIN, Broome, NY | Pass | State |
| 2021-10-26 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2021-10-26 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2021-10-26 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2021-10-26 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2021-10-26 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2021-10-26 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | EUREKA MIDSTREAM - CAIN RIDGE COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-10-26 | THE LINCOLN ELECTRIC COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-10-26 | THE LINCOLN ELECTRIC COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-10-26 | THE LINCOLN ELECTRIC COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-10-26 | THE LINCOLN ELECTRIC COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-10-26 | THE LINCOLN ELECTRIC COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-10-26 | THE LINCOLN ELECTRIC COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2021-10-26 | EJ ARDMORE INC / ARDMORE FOUNDRY | ARDMORE, Carter, OK | Pass | State |
| 2021-10-26 | MUSTANG GAS PRODUCTS LLC / FLYNN COMPRESSOR STATION | DOUGLAS, Garfield, OK | Pass | State |
| 2021-10-26 | CONTINENTAL RESOURCES / LAMBRECHT 4 17 20XHW LAMBRECHT 5 17 20 | MIDDLEBERG, Grady, OK | Pass | State |
| 2021-10-26 | PETROLINK ENERGY LLC / ATWOOD BROCKWAY COMPRESSOR STATION | ATWOOD, Hughes, OK | Pass | State |
| 2021-10-26 | VALIDUS ENERGY II MIDCON LLC / COMMANDO PAD | PAYNE, McClain, OK | Pass | State |
| 2021-10-26 | NORIT AMERICAS INC / PRYOR ACTIVATED CARBON PLANT | PRYOR, Mayes, OK | Fail | State |
| 2021-10-26 | TRINITY OPERATING USG LLC / LYTLE PAD LAKE MCALESTER FIELD | CROWDER, Pittsburg, OK | Pass | State |
| 2021-10-26 | PROCTER & GAMBLE PAPER PROD CO/MEHOOPANY | MEHOOPANY, Wyoming, PA | Pass | State |
| 2021-10-26 | NEXTERA RENEWABLE FUELS LLC/CUMBERLAND CNTY LDFL | SHIPPENSBURG, Cumberland, PA | Pass | State |
| 2021-10-26 | ETC NORTHEAST FLD SVC LLC/PIKE COMP STA | ROCHESTER, Beaver, PA | Pass | State |
| 2021-10-26 | ZANINI TENNESSEE, INC. | WINCHESTER, Franklin, TN | Pass | State |
| 2021-10-26 | THE SAN ANTONIO REFINERY — high-priority violation on file | SAN ANTONIO, Bexar, TX | Pass | State |
| 2021-10-26 | CALAVERAS PLANT SITE | SAN ANTONIO, Bexar, TX | Pass | State |
| 2021-10-26 | HUNTER FACILITY | NEW BRAUNFELS, Comal, TX | Pass | State |
| 2021-10-26 | SOUTH SUGARLOAF CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2021-10-26 | SOUTH SUGARLOAF CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2021-10-26 | SOUTH SUGARLOAF CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2021-10-26 | CHICO GAS PLANT | CHICO, Wise, TX | Pass | State |
| 2021-10-26 | WAGGONER COMPRESSOR STATION | DECATUR, Wise, TX | Pass | State |
| 2021-10-26 | SLIDELL BOOSTER STATION | SLIDELL, Wise, TX | Pass | State |
| 2021-10-26 | IRON MOUNTAIN INFORMATION MANAGEMENT LLC — high-priority violation on file | MANASSAS, Prince William, VA | Pass | State |
| 2021-10-26 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2021-10-26 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2021-10-26 | LOUISIANA PACIFIC CORPORATION - GREEN BAY | GREEN BAY, Brown, WI | Pass | State |
| 2021-10-26 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2021-10-26 | MCKINLEY PAPER AND PACKAGING COMPANY — high-priority violation on file | COMBINED LOCKS, Ozaukee, WI | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2021-10-25 | SDG&E CUYAMACA PEAK ENERGY PLANT | EL CAJON, San Diego, CA | Pending | Local |
| 2021-10-25 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-25 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-25 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-25 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2021-10-25 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.