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 |
|---|---|---|---|---|
| 2020-12-01 | BRIDGE ENERGY, LLC | BREA, Orange, CA | Pass | Local |
| 2020-12-01 | CA- SPRAY DRY CO | STOCKTON, San Joaquin, CA | Pass | Local |
| 2020-12-01 | CA- SPRAY DRY CO | STOCKTON, San Joaquin, CA | Pass | Local |
| 2020-12-01 | CA- SPRAY DRY CO | STOCKTON, San Joaquin, CA | Pass | Local |
| 2020-12-01 | CA- SPRAY DRY CO | STOCKTON, San Joaquin, CA | Pass | Local |
| 2020-12-01 | SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file | COMMERCE CITY, Adams, CO | Pass | State |
| 2020-12-01 | UNIV OF COLO - ANSCHUTZ MEDICAL CAMPUS | AURORA, Adams, CO | Pass | State |
| 2020-12-01 | ROCKY MOUNTAIN NAT GAS - PICEANCE | MEEKER 17.4 MI. W OF, Rio Blanco, CO | Pass | State |
| 2020-12-01 | ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S. | LOCHBUIE AREA, Weld, CO | Pass | State |
| 2020-12-01 | ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S. | LOCHBUIE AREA, Weld, CO | Pass | State |
| 2020-12-01 | EXTRACTION - TRIPLE CREEK PRODUCTION | GREELEY, Weld, CO | Fail | State |
| 2020-12-01 | EXTRACTION - TRIPLE CREEK PRODUCTION | GREELEY, Weld, CO | Fail | State |
| 2020-12-01 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-12-01 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-12-01 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-12-01 | KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI | KERSEY 8.1 MI. N OF, Weld, CO | Pass | State |
| 2020-12-01 | KERR MCGEE - MUSTANG 14-26 PROD FACIL | KERSEY 9.4 MI. N OF, Weld, CO | Pass | State |
| 2020-12-01 | DEVON POWER LLC | DEVON, New Haven, CT | Pass | State |
| 2020-12-01 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2020-12-01 | OLEANDER POWER PROJECT, LP | COCOA, Brevard, FL | Pass | State |
| 2020-12-01 | DART CONTAINER CORPORATION OF FLORIDA | PLANT CITY, Hillsborough, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2020-12-01 | CARBO CERAMICS, INC. - MCINTYRE PLANT — high-priority violation on file | MCINTYRE, Wilkinson, GA | Pass | State |
| 2020-12-01 | CARBO CERAMICS, INC. - MCINTYRE PLANT — high-priority violation on file | MCINTYRE, Wilkinson, GA | Pass | State |
| 2020-12-01 | COUNTY OF HAWAII - WEST HAWAII MSWL | WAIKOLOA, Hawaii, HI | Pass | State |
| 2020-12-01 | HOMELAND ENERGY SOLUTIONS LLC — high-priority violation on file | LAWLER, Chickasaw, IA | Pass | State |
| 2020-12-01 | CARGILL INC-EDDYVILLE | EDDYVILLE, Monroe, IA | Pass | State |
| 2020-12-01 | CARGILL INC-EDDYVILLE | EDDYVILLE, Monroe, IA | Pass | State |
| 2020-12-01 | SOUTH BEND ETHANOL LLC — high-priority violation on file | SOUTH BEND, St. Joseph, IN | Pass | State |
| 2020-12-01 | SOUTH BEND ETHANOL LLC — high-priority violation on file | SOUTH BEND, St. Joseph, IN | Pass | State |
| 2020-12-01 | SOUTH BEND ETHANOL LLC — high-priority violation on file | SOUTH BEND, St. Joseph, IN | Pass | State |
| 2020-12-01 | RAYBESTOS POWERTRAIN LLC | SULLIVAN, Sullivan, IN | Pass | State |
| 2020-12-01 | STEEL DYNAMICS, INC. STRUCTURAL & RAIL DIVISION — high-priority violation on file | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2020-12-01 | RIVER ROCK OPERATING - GRAYBILL STATION (DEHY)(AIR) | MOUND VALLEY, Labette, KS | Pass | State |
| 2020-12-01 | BELOIT MUN. POWER PLANT (AIR) | BELOIT, Mitchell, KS | Pass | State |
| 2020-12-01 | NORTHERN NATURAL GAS - MACKSVILLE STATION (AIR) | MACKSVILLE, Pawnee, KS | Pass | State |
| 2020-12-01 | CENTURY ALUMINUM SEBREE LLC | ROBARDS, Henderson, KY | Pass | State |
| 2020-12-01 | LOUISVILLE MEDICAL CENTER STEAM PLANT | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2020-12-01 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2020-12-01 | SOUTHEAST BERRIEN COUNTY LANDFILL AUTHORITY | NILES, Berrien, MI | Pass | State |
| 2020-12-01 | BRENT RUN LANDFILL | MONTROSE, Genesee, MI | Pass | State |
| 2020-12-01 | BREMBO NORTH AMERICA, INC. — high-priority violation on file | HOMER, Calhoun, MI | Pass | State |
| 2020-12-01 | CABOT CORPORATION | MIDLAND, Midland, MI | Pass | State |
| 2020-12-01 | USG INTERIORS LLC | RED WING, Goodhue, MN | Pass | State |
| 2020-12-01 | INDUSTRIAL FINISHING SERVICES INC - PERHAM | PERHAM, Otter Tail, MN | Pass | State |
| 2020-12-01 | LAMAR CITY ELECTRICAL GENERATION | LAMAR, Barton, MO | Pending | State |
| 2020-12-01 | LAMAR CITY ELECTRICAL GENERATION | LAMAR, Barton, MO | Pending | State |
| 2020-12-01 | AMEREN MISSOURI MERAMEC ENERGY CENTER | SAINT LOUIS COUNTY, St. Louis, MO | Fail | U.S. EPA |
| 2020-12-01 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2020-12-01 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2020-12-01 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2020-12-01 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pass | State |
| 2020-12-01 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2020-12-01 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2020-12-01 | DEEP ELEM LGL STATION | LOVING, Eddy, NM | Pass | State |
| 2020-12-01 | DEEP ELEM LGL STATION | LOVING, Eddy, NM | Pass | State |
| 2020-12-01 | SEAWOLF COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-01 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-01 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-01 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-01 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-01 | WINNEMUCCA COMPRESSOR STATION #4 | WINNEMUCCA, Humboldt, NV | Pass | State |
| 2020-12-01 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2020-12-01 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2020-12-01 | MARKWEST OKLAHOMA GAS CO LLC / OKARCHE COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2020-12-01 | MARKWEST OKLAHOMA GAS CO LLC / OKARCHE COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2020-12-01 | FW MIDCON I LLC / CHARLES 1H 19 | SEILING, Dewey, OK | Pass | State |
| 2020-12-01 | ET GATHERING PROCESSING LLC / BISHOP 1 COMPRESSOR STATION | ARNETT, Ellis, OK | Pass | State |
| 2020-12-01 | CONTINENTAL RESOURCES / BUSER 1 19 30XH STEELMAN 1 18 7XH | TABLER, Grady, OK | Pass | State |
| 2020-12-01 | INTERNATIONAL PAPER - VALLIANT / IP VALLIANT PAPER MILL | VALLIANT, McCurtain, OK | Pass | State |
| 2020-12-01 | EASTERN GAS TRANS & STORAGE INC/CENTRE COMP STA | PLEASANT GAP, Centre, PA | Pass | State |
| 2020-12-01 | EQM GATHERING OPCO LLC/PIPERS RIDGE INTERCONNECT | WAYNESBURG, Greene, PA | Pass | State |
| 2020-12-01 | ASPEN AEROGELS, INC. — high-priority violation on file | EAST PROVIDENCE, Providence, RI | Pass | State |
| 2020-12-01 | BASF CORPORATION SENECA SITE | SENECA, Oconee, SC | Pass | State |
| 2020-12-01 | FORT PIERRE POWER AND LIGHT PLANT — high-priority violation on file | FORT PIERRE, Stanley, SD | Pass | State |
| 2020-12-01 | THE NEWARK GROUP, INC. | MILWAUKEE, Monroe, WI | Pass | State |
| 2020-12-01 | SONOCO METAL PACKAGING LLC | MILWAUKEE, Monroe, WI | Pass | State |
| 2020-12-01 | AMCOR FILMS | OSHKOSH, Wood, WI | Pass | State |
| 2020-12-01 | MONONGAHELA POWER COMPANY, FORT MARTIN STATION | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2020-11-30 | OWENS CORNING ROOFING & ASPHALT, LLC | COMPTON, Los Angeles, CA | Pass | Local |
| 2020-11-30 | MINNESOTA METHANE SAN DIEGO LLC | SAN DIEGO, San Diego, 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 |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.