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 |
|---|---|---|---|---|
| 2021-12-22 | DIVERSIFIED PRODUCTION LLC - POOL UNIT | BENTON, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-12-22 | DIVERSIFIED PRODUCTION LLC - POOL UNIT | BENTON, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-12-22 | DIVERSIFIED PRODUCTION LLC - POOL UNIT | BENTON, TOWNSHIP OF, Monroe, OH | Pass | State |
| 2021-12-22 | DIVERSIFIED PRODUCTION LLC / MURPHY 1 18 STATION | WEATHERFORD, Custer, OK | Pass | State |
| 2021-12-22 | CALPINE MID MERIT II LLC/ YORK ENERGY CENTER BLOCK 2 — high-priority violation on file | DELTA, York, PA | Pass | State |
| 2021-12-22 | SUSQUEHANNA GATHERING/NORTH RANGE CPF 1 COMP STA | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2021-12-22 | HAMPTON/NASA STEAM PLANT | HAMPTON, Hampton (city), VA | Pass | State |
| 2021-12-21 | BLUE BUTTES COMPRESSOR STATION AND PUMP STATION | MCKENZIE COUNTY, McKenzie, ND | Pass | U.S. EPA |
| 2021-12-21 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Pass | State |
| 2021-12-21 | CHEVRON PRODUCTS CO — high-priority violation on file | EL SEGUNDO, Los Angeles, CA | Pass | Local |
| 2021-12-21 | TESORO LOGISTICS MARINE TERMINAL 2 | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | KERN OIL & REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-12-21 | PACIFIC PIPELINE SYSTEM, LLC — high-priority violation on file | METTLER, Kern, CA | Pass | Local |
| 2021-12-21 | PACIFIC PIPELINE SYSTEM, LLC — high-priority violation on file | METTLER, Kern, CA | Pass | Local |
| 2021-12-21 | KIMBERLY-CLARK CORPORATION, NEW MILFORD MILL — high-priority violation on file | NEW MILFORD, Litchfield, CT | Pass | State |
| 2021-12-21 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-12-21 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-12-21 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-12-21 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-12-21 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-12-21 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
| 2021-12-21 | BD GLOBAL DISTRIBUTION CENTER | COVINGTON, Newton, GA | Pass | State |
| 2021-12-21 | JAS. W. GLOVER (0257) | PUHI, Kauai, HI | Pass | State |
| 2021-12-21 | BAYER CROPSCIENCE LP 3670/6908/6909 | MUSCATINE, Muscatine, IA | Pass | State |
| 2021-12-21 | BAYER CROPSCIENCE LP 3670/6908/6909 | MUSCATINE, Muscatine, IA | Pass | State |
| 2021-12-21 | BAYER CROPSCIENCE LP 3670/6908/6909 | MUSCATINE, Muscatine, IA | Pass | State |
| 2021-12-21 | CARPENTER COMPANY | ELKHART, Elkhart, IN | Pass | State |
| 2021-12-21 | SIGECO AB BROWN GENERATING STATION | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-12-21 | FREUDENBERG NOK GENERAL PARTNERSHIP | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-12-21 | FREUDENBERG NOK GENERAL PARTNERSHIP | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-12-21 | BAVARIAN TRUCKING COMPANY INC | WALTON, Boone, KY | Pass | State |
| 2021-12-21 | SABINE PASS LNG LP AND SABINE PASS LIQUEFACTION LLC - SABINE PASS LNG TERMINAL | CAMERON, Cameron, LA | Pass | State |
| 2021-12-21 | BELDEN FARMS ORGANIC RECYCLERY | HATFIELD, Hampshire, MA | N/A | State |
| 2021-12-21 | GREDE IRON MOUNTAIN, LLC — high-priority violation on file | KINGSFORD, Dickinson, MI | Pass | State |
| 2021-12-21 | BETZ INDUSTRIES, INC. | GRAND RAPIDS, Kent, MI | Pending | State |
| 2021-12-21 | UNITED STATES GYPSUM COMPANY | RIVER ROUGE, Wayne, MI | Pass | State |
| 2021-12-21 | NORTHERN BORDER PIPELINE - COMPRESSOR 13 | TRIMONT, Martin, MN | Pass | State |
| 2021-12-21 | OWENS-CORNING STATELINE | JOPLIN, Jasper, MO | Fail | State |
| 2021-12-21 | OWENS-CORNING STATELINE | JOPLIN, Jasper, MO | Fail | State |
| 2021-12-21 | OWENS-CORNING STATELINE | JOPLIN, Jasper, MO | Fail | State |
| 2021-12-21 | MDU - GLENDIVE | GLENDIVE, Dawson, MT | Pass | State |
| 2021-12-21 | MDU - GLENDIVE | GLENDIVE, Dawson, MT | Pass | State |
| 2021-12-21 | BLYTHE BROTHERS ASPHALT COMPANY, LLC | CHARLOTTE, Mecklenburg, NC | Pass | Local |
| 2021-12-21 | COLD RIVER MATERIALS - WALPOLE (S&G) | WALPOLE, Cheshire, NH | Pass | State |
| 2021-12-21 | COLD RIVER MATERIALS - WALPOLE (S&G) | WALPOLE, Cheshire, NH | Pass | State |
| 2021-12-21 | PROCTER & GAMBLE MASON BUSINESS & INNOVATION CENTER | MASON, Warren, OH | Pass | State |
| 2021-12-21 | PROCTER & GAMBLE MASON BUSINESS & INNOVATION CENTER | MASON, Warren, OH | Pass | State |
| 2021-12-21 | PROCTER & GAMBLE MASON BUSINESS & INNOVATION CENTER | MASON, Warren, OH | Pass | State |
| 2021-12-21 | PROCTER & GAMBLE MASON BUSINESS & INNOVATION CENTER | MASON, Warren, OH | Pass | State |
| 2021-12-21 | PPG - TESLIN | BARBERTON, Summit, OH | Pass | State |
| 2021-12-21 | ONEOK FIELD SERVICES CO LLC / PAYNE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2021-12-21 | CONTINENTAL RESOURCES / LEXINGTON 1 32 29XHW GRAMERCY 1 32 5 8 | POOLEVILLE, Carter, OK | Pass | State |
| 2021-12-21 | CONTINENTAL RESOURCES / AMSTERDAM 1 35 26XHW | RATLIFF CITY, Carter, OK | Pass | State |
| 2021-12-21 | ET GATHERING PROCESSING LLC / CYCLONE COMPRESSOR STATION | SEILING, Dewey, OK | Pass | State |
| 2021-12-21 | ET GATHERING PROCESSING LLC / CYCLONE COMPRESSOR STATION | SEILING, Dewey, OK | Pass | State |
| 2021-12-21 | ENERFIN GATHERING EAST LLC / SEMINOLE COMPRESSOR STATION | SEMINOLE, Seminole, OK | Pass | State |
| 2021-12-21 | ENERFIN GATHERING EAST LLC / SEMINOLE COMPRESSOR STATION | SEMINOLE, Seminole, OK | Pass | State |
| 2021-12-21 | PENN MED LANCASTER GEN HOSP/LANCASTER GEN HOSP | LANCASTER, Lancaster, PA | Pass | State |
| 2021-12-21 | BRADFORD FOREST/MCKEAN | BRADFORD, McKean, PA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.