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 |
|---|---|---|---|---|
| 2021-11-04 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2021-11-04 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | N/A | State |
| 2021-11-04 | DC WATER (BLUE PLAINS WASTEWATER TREATMENT FACILITY) — high-priority violation on file | WASHINGTON, District of Columbia, DC | Fail | State |
| 2021-11-04 | FORT MYER CONSTRUCTION PLANT I | WASHINGTON, District of Columbia, DC | Pass | State |
| 2021-11-04 | LIGNOTECH FLORIDA LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2021-11-04 | LIGNOTECH FLORIDA LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2021-11-04 | VULCAN CONSTRUCTION MATERIALS, LLC - ELLIJAY QUARRY — high-priority violation on file | ELLIJAY, Gilmer, GA | Pass | State |
| 2021-11-04 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-04 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-04 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2021-11-04 | J R SIMPLOT - CALDWELL (NEW) | CALDWELL, Canyon, ID | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Fail | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Pass | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Fail | State |
| 2021-11-04 | VALERO RENEWABLE FUELS CO LLC DBA VALERO MT VERNON PLANT — high-priority violation on file | MOUNT VERNON, Posey, IN | Fail | State |
| 2021-11-04 | CREST 30-19 PAD | PELICAN, De Soto, LA | Pass | State |
| 2021-11-04 | CREST 30-19 PAD | PELICAN, De Soto, LA | Pass | State |
| 2021-11-04 | GLWA WATER RESOURCE RECOVERY FACILITY | DETROIT, Wayne, MI | Pass | State |
| 2021-11-04 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2021-11-04 | CITIZENS DISPOSAL, INC. | GRAND BLANC, Genesee, MI | Pass | State |
| 2021-11-04 | GRANGER WOOD STREET LANDFILL — high-priority violation on file | LANSING, Clinton, MI | Pass | State |
| 2021-11-04 | ME GLOBAL INC | DULUTH, St. Louis, MN | Pass | State |
| 2021-11-04 | LHOIST NORTH AMERICA | SAINTE GENEVIEVE, Ste. Genevieve, MO | Pass | State |
| 2021-11-04 | THE MOSES H. CONE MEMORIAL HOSPITAL | GREENSBORO, Guilford, NC | Pass | State |
| 2021-11-04 | COSTCO GASOLINE LOC. NO. 1587 | RALEIGH, Wake, NC | Pending | State |
| 2021-11-04 | CHIEF ETHANOL FUELS INC | HASTINGS, Adams, NE | Fail | State |
| 2021-11-04 | PASSAIC VALLEY SEWAGE COMMISSION | NEWARK, Essex, NJ | Pass | State |
| 2021-11-04 | DEEP ELEM LGL STATION | LOVING, Eddy, NM | Pass | State |
| 2021-11-04 | DEEP ELEM LGL STATION | LOVING, Eddy, NM | Pass | State |
| 2021-11-04 | GOLDSTRIKE MINE | CARLIN, Eureka, NV | Pass | State |
| 2021-11-04 | STARRETT CITY POWER PLANT | BROOKLYN, Kings, NY | Pass | State |
| 2021-11-04 | ERIE GENERATING STATION | MILAN, Erie, OH | Pass | State |
| 2021-11-04 | ERIE GENERATING STATION | MILAN, Erie, OH | Pass | State |
| 2021-11-04 | ERIE GENERATING STATION | MILAN, Erie, OH | Pass | State |
| 2021-11-04 | SUNRISE CO-OP, CLARKSFIELD FACILITY | WAKEMAN, Huron, OH | Pass | State |
| 2021-11-04 | NANOGATE JAY SYSTEMS LLC | MANSFIELD, Richland, OH | Pass | State |
| 2021-11-04 | NANOGATE JAY SYSTEMS LLC | MANSFIELD, Richland, OH | Fail | State |
| 2021-11-04 | NANOGATE JAY SYSTEMS LLC | MANSFIELD, Richland, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | EUREKA MIDSTREAM-ZINK COMPRESSOR STATION | CLARINGTON, Monroe, OH | Pass | State |
| 2021-11-04 | VALLEY ASPHALT #27 — high-priority violation on file | WASHINGTON COURT HOUSE, Fayette, OH | Pass | State |
| 2021-11-04 | DCP OPERATING CO LP / CANTON BOOSTER | CANTON, Blaine, OK | Pass | State |
| 2021-11-04 | ET GATHERING PROCESSING LLC / ASHLAND 2 COMPRESSOR STATION | CAIRO, Coal, OK | Pass | State |
| 2021-11-04 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2021-11-04 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2021-11-04 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2021-11-04 | ET GATHERING PROCESSING LLC / COUNTY LINE COMPRESSOR STATION | DACOMA, Woods, OK | Pass | State |
| 2021-11-04 | ET GATHERING PROCESSING LLC / COUNTY LINE COMPRESSOR STATION | DACOMA, Woods, OK | Pass | State |
| 2021-11-04 | NUGEN ENERGY LLC — high-priority violation on file | MARION, Turner, SD | Pass | State |
| 2021-11-04 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2021-11-04 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2021-11-04 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2021-11-04 | BEAR DRAW-BRUIN COMPRESSOR STATION (POWDER RIVER MIDSTREAM LLC) | JOHNSON COUNTY, Johnson, WY | Pass | State |
| 2021-11-04 | MUDDY CREEK STATION (KERN RIVER GAS TRANS) | LINCOLN COUNTY, Lincoln, WY | Pass | State |
| 2021-11-04 | RINER STATION (SOUTHERN STAR CENTRAL GAS PIPELINE) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2021-11-03 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Pass | State |
| 2021-11-03 | FLYWHEEL ENERGY COMPANY - PUMA NORTH CPF-1 | WILBURN, Cleburne, AR | Pass | State |
| 2021-11-03 | DESOTO GATHERING COMPANY, LLC - CHARLEY CPF-4 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2021-11-03 | ASH GROVE CEMENT COMPANY | FOREMAN, Little River, AR | Pass | State |
| 2021-11-03 | RAZORBACK GATHERING COMPANY, LLC. - LITTLE RED RIVER CPF 1 | BALD KNOB, White, AR | Pass | State |
| 2021-11-03 | RAZORBACK GATHERING COMPANY, LLC. - LITTLE RED RIVER CPF 1 | BALD KNOB, White, AR | Pass | State |
| 2021-11-03 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2021-11-03 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-03 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-03 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-03 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-03 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-03 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2021-11-03 | TRUSTEES OF CSU & CSUCI SITE AUTHORITY | CAMARILLO, Ventura, CA | Pass | Local |
| 2021-11-03 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2021-11-03 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2021-11-03 | SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE | NUNN 18.4 MI. N OF, Weld, CO | N/A | State |
| 2021-11-03 | SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE | NUNN 18.4 MI. N OF, Weld, CO | Pass | State |
| 2021-11-03 | BONANZA CREEK ENERGY- NORTH PLATTE 14-36 | KERSEY, Weld, CO | N/A | State |
| 2021-11-03 | BONANZA CREEK ENERGY- NORTH PLATTE 14-36 | KERSEY, Weld, CO | Pass | State |
| 2021-11-03 | BUCKEYE TERMINALS, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2021-11-03 | COMMUNITY ASPHALT CORP | WEST PALM BEACH, Palm Beach, FL | Pass | State |
| 2021-11-03 | MOSAIC FERTILIZER LLC — high-priority violation on file | MULBERRY, Polk, FL | Pass | State |
| 2021-11-03 | GRP FRANKLIN, LLC | CARNESVILLE, Franklin, GA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.