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 |
|---|---|---|---|---|
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | STOCKTON RWCF — high-priority violation on file | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-12-16 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2021-12-16 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2021-12-16 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2021-12-16 | CITY OF GAINESVILLE, GRU — high-priority violation on file | GAINESVILLE, Alachua, FL | Pass | State |
| 2021-12-16 | CITY OF GAINESVILLE, GRU — high-priority violation on file | GAINESVILLE, Alachua, FL | Pass | State |
| 2021-12-16 | CITY OF GAINESVILLE, GRU — high-priority violation on file | GAINESVILLE, Alachua, FL | Pass | State |
| 2021-12-16 | CITY OF GAINESVILLE, GRU — high-priority violation on file | GAINESVILLE, Alachua, FL | Pass | State |
| 2021-12-16 | FLORIDA POWER & LIGHT COMPANY | PACE, Santa Rosa, FL | Pass | State |
| 2021-12-16 | TELEFLEX MEDICAL OEM LLC PKA IWG HPC INC. | TRENTON, Dade, GA | Pass | State |
| 2021-12-16 | CHEMENCE MEDICAL | ALPHARETTA, Forsyth, GA | Pass | State |
| 2021-12-16 | ANCHOR GLASS CONTAINER CORPORATION - WARNER ROBINS PLANT — high-priority violation on file | WARNER ROBINS, Houston, GA | Pass | State |
| 2021-12-16 | ANCHOR GLASS CONTAINER CORPORATION - WARNER ROBINS PLANT — high-priority violation on file | WARNER ROBINS, Houston, GA | Pass | State |
| 2021-12-16 | ANCHOR GLASS CONTAINER CORPORATION - WARNER ROBINS PLANT — high-priority violation on file | WARNER ROBINS, Houston, GA | Pass | State |
| 2021-12-16 | ANCHOR GLASS CONTAINER CORPORATION - WARNER ROBINS PLANT — high-priority violation on file | WARNER ROBINS, Houston, GA | Pass | State |
| 2021-12-16 | ANCHOR GLASS CONTAINER CORPORATION - WARNER ROBINS PLANT — high-priority violation on file | WARNER ROBINS, Houston, GA | Pass | State |
| 2021-12-16 | THOMPSON HARDWOODS, INC. | HAZLEHURST, Jeff Davis, GA | Pass | State |
| 2021-12-16 | ATLANTIC POLE - GEORGIA, LLC | VIDALIA, Toombs, GA | Pass | State |
| 2021-12-16 | BROADHURST ENVIRONMENTAL LANDFILL | SCREVEN, Wayne, GA | Pass | State |
| 2021-12-16 | ID CASTINGS OF ILLINOIS LLC — high-priority violation on file | MARTINSVILLE, Clark, IL | Pass | State |
| 2021-12-16 | ESSEX SOLUTIONS USA LLC | FRANKLIN, Johnson, IN | Pass | State |
| 2021-12-16 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-12-16 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-12-16 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-12-16 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2021-12-16 | SABINE PASS LNG LP AND SABINE PASS LIQUEFACTION LLC - SABINE PASS LNG TERMINAL | CAMERON, Cameron, LA | Pass | State |
| 2021-12-16 | AMRIZE — high-priority violation on file | HAGERSTOWN, Washington, MD | Pass | State |
| 2021-12-16 | AMERICAN SUGAR REFINING | BALTIMORE, Baltimore (city), MD | Pass | State |
| 2021-12-16 | MUELLER BRASS COMPANY | PORT HURON, St. Clair, MI | Pass | State |
| 2021-12-16 | FCA US LLC WARREN TRUCK ASSEMBLY PLANT — high-priority violation on file | WARREN, Macomb, MI | Pending | State |
| 2021-12-16 | FCA US LLC - DETROIT ASSEMBLY COMPLEX — high-priority violation on file | DETROIT, Wayne, MI | Pending | State |
| 2021-12-16 | HOWELL COMPRESSOR STATION | HOWELL, Livingston, MI | Pass | State |
| 2021-12-16 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pass | State |
| 2021-12-16 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pending | State |
| 2021-12-16 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2021-12-16 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2021-12-16 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2021-12-16 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2021-12-16 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2021-12-16 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2021-12-16 | CENTERSTREAM STL LLC | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2021-12-16 | CHEMOURS COMPANY - FAYETTEVILLE WORKS | FAYETTEVILLE, Bladen, NC | Pending | State |
| 2021-12-16 | VALERO RENEWABLE FUELS COMPANY — high-priority violation on file | ALBION, Boone, NE | N/A | State |
| 2021-12-16 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2021-12-16 | ACM ENERGY PARTNERS LLC (FKA: THERMAL ENERGY - MIDTWN THRML CNTRL CTR) | ATLANTIC CITY, Atlantic, NJ | Pass | State |
| 2021-12-16 | WHITE CITY 8 FEDERAL 2H-5H | WHITES CITY, Eddy, NM | Pass | State |
| 2021-12-16 | FADEAWAY RIDGE COMPRESSOR STATION | ARTESIA, Eddy, NM | Pass | State |
| 2021-12-16 | LIMA REFINING COMPANY — high-priority violation on file | LIMA, Allen, OH | Pass | State |
| 2021-12-16 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-12-16 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-12-16 | ASCENT RESOURCES - UTICA LLC - PORTERFIELD WELL PAD | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2021-12-16 | OWENS CORNING ROOFING AND ASPHALT, LLC | MEDINA, Medina, OH | Pass | State |
| 2021-12-16 | MARKWEST PIONEER LLC / ARKOMA COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2021-12-16 | MARKWEST PIONEER LLC / ARKOMA COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2021-12-16 | MARKWEST OKLAHOMA GAS CO LLC / WOMACK COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2021-12-16 | GREATER HAZLETON JT SEW AUTH/WEST HAZLETON STP — high-priority violation on file | WEST HAZLETON, Luzerne, PA | Pass | State |
| 2021-12-16 | BEFESA ZINC US INC./PALMERTON — high-priority violation on file | PALMERTON, Carbon, PA | Pending | State |
| 2021-12-16 | PANTHER CREEK POWER OPR LLC/NESQUEHONING | NESQUEHONING, Carbon, PA | Pass | State |
| 2021-12-16 | EXPAND OPERATING LLC/FERRARO WELL PAD | NEW ALBANY, Bradford, PA | Pass | State |
| 2021-12-16 | ULMER BROTHERS | BLUFFTON, Beaufort, SC | Pass | State |
| 2021-12-16 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2021-12-16 | AMAZON DATA SERVICES - DCA-51 | WARRENTON, Fauquier, VA | Fail | State |
| 2021-12-16 | GLOBALFOUNDRIES US 2 LLC | ESSEX, Chittenden, VT | Pass | State |
| 2021-12-16 | ETHAN ALLEN OPERATIONS INC (BEECHER FALLS) | CANAAN, Essex, VT | Pass | State |
| 2021-12-16 | LANXESS CORPORATION — high-priority violation on file | KALAMA, Cowlitz, WA | Pass | Local |
| 2021-12-16 | GRAYMONT WESTERN LIME - EDEN | EDEN, Fond du Lac, WI | Pass | State |
| 2021-12-16 | GUNDERSEN HEALTH SYSTEM | LA CROSSE, La Crosse, WI | Pass | State |
| 2021-12-16 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2021-12-16 | BEAVER CREEK COMPRESSOR STATION (DENBURY ONSHORE, LLC) | RIVERTON, Fremont, WY | Pass | State |
| 2021-12-15 | CRESTWOOD STATION 5 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2021-12-15 | CRESTWOOD STATION 1 | NORTH DAKOTA, Undetermined, ND | Pass | U.S. EPA |
| 2021-12-15 | MICHELIN TIRE CORPORATION | MIDLAND CITY, Dale, AL | Pass | State |
| 2021-12-15 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | SWEET WATER, Marengo, AL | Pass | State |
| 2021-12-15 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2021-12-15 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2021-12-15 | HYUNDAI MOTOR MANUFACTURING ALABAMA LLC. | MONTGOMERY, Montgomery, AL | Pass | State |
| 2021-12-15 | BAKELITE CHEMICALS LLC. | CROSSETT, Ashley, AR | Pass | State |
| 2021-12-15 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2021-12-15 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2021-12-15 | ROGERS GROUP, INC. - CABOT ASPHALT | CABOT, Lonoke, AR | Pass | State |
| 2021-12-15 | PROCTER & GAMBLE | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2021-12-15 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-12-15 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-12-15 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-12-15 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2021-12-15 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.