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 |
|---|---|---|---|---|
| 2021-11-30 | COTTONWOOD WASH COMPRESSOR STATION | VERNAL, Uintah, UT | Pass | U.S. EPA |
| 2021-11-30 | COTTONWOOD WASH COMPRESSOR STATION | VERNAL, Uintah, UT | Pass | U.S. EPA |
| 2021-11-30 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2021-11-30 | PRUET PRODUCTION COMPANY | BROOKLYN, Cullman, AL | Pass | State |
| 2021-11-30 | ALABAMA POWER COMPANY | WILSONVILLE, Shelby, AL | Pass | State |
| 2021-11-30 | LEHIGH CEMENT COMPANY | LEEDS, Jefferson, AL | Pass | Local |
| 2021-11-30 | NORTHWEST PIPE & CASING__(NWP) | ADELANTO, San Bernardino, CA | Fail | Local |
| 2021-11-30 | AIR PROD & CHEM INC | CARSON, Los Angeles, CA | Pass | Local |
| 2021-11-30 | BRIDGE ENERGY, LLC | BREA, Orange, CA | Pass | Local |
| 2021-11-30 | FULCRUM ENERGY - MUTUAL 0780 S17 PAD | WALDEN 11.7 MI. SW OF, Jackson, CO | Fail | State |
| 2021-11-30 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-30 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-30 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-30 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-30 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-30 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-30 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-30 | CARBO CERAMICS, INC. - MCINTYRE PLANT — high-priority violation on file | MCINTYRE, Wilkinson, GA | Pass | State |
| 2021-11-30 | CARBO CERAMICS, INC. - MCINTYRE PLANT — high-priority violation on file | MCINTYRE, Wilkinson, GA | Pass | State |
| 2021-11-30 | CARBO CERAMICS, INC. - MCINTYRE PLANT — high-priority violation on file | MCINTYRE, Wilkinson, GA | Pass | State |
| 2021-11-30 | GERRESHEIMER MOULDED GLASS CHICAGO INC. — high-priority violation on file | CHICAGO HEIGHTS, Cook, IL | Pass | State |
| 2021-11-30 | KINDER MORGAN LIQUIDS TERMINALS LLC | ELK GROVE VILLAGE, Cook, IL | Pass | State |
| 2021-11-30 | GENERAL METAL COATINGS | ALEDO, Mercer, IL | Pass | State |
| 2021-11-30 | GENERAL METAL COATINGS | ALEDO, Mercer, IL | Pass | State |
| 2021-11-30 | CITY WATER LIGHT & POWER | SPRINGFIELD, Sangamon, IL | Pass | State |
| 2021-11-30 | TEXAS GAS TRANSMISSION LLC DILLSBORO COMPRESSOR STATION | AURORA, Dearborn, IN | Pass | State |
| 2021-11-30 | TEXAS GAS TRANSMISSION LLC DILLSBORO COMPRESSOR STATION | AURORA, Dearborn, IN | Pass | State |
| 2021-11-30 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2021-11-30 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2021-11-30 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2021-11-30 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2021-11-30 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2021-11-30 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2021-11-30 | CROWN CORK & SEAL USA INC | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2021-11-30 | NORTHERN NATURAL GAS - MULLINVILLE STATION (AIR) | MULLINVILLE, Kiowa, KS | Pass | State |
| 2021-11-30 | GP INDUSTRIAL PLASTERS (AIR) | BLUE RAPIDS, Marshall, KS | Pass | State |
| 2021-11-30 | MM TAUNTON ENERGY | TAUNTON, TOWN OF, Bristol, MA | Pass | State |
| 2021-11-30 | RAVEN POWER FORT SMALLWOOD LLC | CURTIS BAY, Anne Arundel, MD | Pass | State |
| 2021-11-30 | MARATHON PETROLEUM COMPANY LP — high-priority violation on file | DETROIT, Wayne, MI | Pass | State |
| 2021-11-30 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2021-11-30 | FORD MOTOR COMPANY - FLAT ROCK ASSEMBLY | FLAT ROCK, Wayne, MI | Pending | State |
| 2021-11-30 | SOUTHEAST BERRIEN COUNTY LANDFILL AUTHORITY | NILES, Berrien, MI | Pass | State |
| 2021-11-30 | ST. FRANCIS POWER PLANT | CAMPBELL, Dunklin, MO | Pass | State |
| 2021-11-30 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2021-11-30 | LEHMAN ROBERTS COMPANY, PLANT NUMBER 10 | BYHALIA, Marshall, MS | Pass | State |
| 2021-11-30 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2021-11-30 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2021-11-30 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2021-11-30 | OIL DRI PRODUCTION COMPANY | RIPLEY, Tippah, MS | Pass | State |
| 2021-11-30 | VICKSBURG FOREST PRODUCTS LLC, WALTERSVILLE LUMBER MILL — high-priority violation on file | VICKSBURG, Warren, MS | Pass | State |
| 2021-11-30 | VICKSBURG FOREST PRODUCTS LLC, WALTERSVILLE LUMBER MILL — high-priority violation on file | VICKSBURG, Warren, MS | Pass | State |
| 2021-11-30 | AMERICAN CRYSTAL SUGAR COMPANY (ACS) - DRAYTON PLANT - AQ | DRAYTON, Pembina, ND | Pass | State |
| 2021-11-30 | ENTERPRISE - CEDAR CANYON COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2021-11-30 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2021-11-30 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2021-11-30 | MARATHON PERMIAN - BLUE STEEL 21 FEE CTB | MALAGA, Eddy, NM | Pass | State |
| 2021-11-30 | MARATHON PERMIAN - BLUE STEEL 21 FEE CTB | MALAGA, Eddy, NM | Pass | State |
| 2021-11-30 | JAL NO. 4 COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-30 | SEAWOLF COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-30 | SEAWOLF COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2021-11-30 | CONSOLIDATED CORTEZ & PIPELINE | CRESCENT VALLEY, Lander, NV | Pass | State |
| 2021-11-30 | STEINWAY & SONS - QUEENS FACILITY | LONG ISLAND CITY, Queens, NY | Pass | State |
| 2021-11-30 | SAMUEL A CARLSON GENERATING STATION | JAMESTOWN, Chautauqua, NY | Pass | State |
| 2021-11-30 | GM DEFIANCE CASTING OPERATIONS | DEFIANCE, Defiance, OH | Pass | State |
| 2021-11-30 | GM DEFIANCE CASTING OPERATIONS | DEFIANCE, Defiance, OH | Pass | State |
| 2021-11-30 | CLEVELAND-CLIFFS STEEL CORPORATION — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2021-11-30 | ET GATHERING PROCESSING LLC / BURLINGTON COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2021-11-30 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2021-11-30 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2021-11-30 | VALERO REFINING CO - OKLAHOMA / VALERO ARDMORE REFINERY | ARDMORE, Carter, OK | Pass | State |
| 2021-11-30 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2021-11-30 | DCP OPERATING CO LP / THUNDER COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2021-11-30 | DCP OPERATING CO LP / THUNDER COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2021-11-30 | DCP OPERATING CO LP / THUNDER COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2021-11-30 | GEISINGER MED CTR/DANVILLE | DANVILLE, Montour, PA | Pass | State |
| 2021-11-30 | FLEXENTIAL/ UPPER PROVIDENCE TWP | COLLEGEVILLE, Montgomery, PA | Pass | State |
| 2021-11-30 | EASTERN GAS TRANS & STORAGE INC/CENTRE COMP STA | PLEASANT GAP, Centre, PA | Pass | State |
| 2021-11-30 | REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2021-11-30 | AARON INDUSTRIES LLC DBA PL DEVELOPMENTS | CLINTON, Laurens, SC | Pass | State |
| 2021-11-30 | ORANGEBURG DEPARTMENT OF PUBLIC UTILITIES | ORANGEBURG, Orangeburg, SC | Pass | State |
| 2021-11-30 | VALERO RENEWABLE FUELS COMPANY LLC — high-priority violation on file | AURORA, Brookings, SD | Pass | State |
| 2021-11-30 | REDFIELD ENERGY LLC — high-priority violation on file | REDFIELD, Beadle, SD | Pass | State |
| 2021-11-30 | FLINT HILLS RESOURCES FT WORTH TERMINAL | EULESS, Tarrant, TX | Pass | State |
| 2021-11-30 | FLINT HILLS RESOURCES FT WORTH TERMINAL | EULESS, Tarrant, TX | Pass | State |
| 2021-11-30 | ACE ETHANOL, LLC | STANLEY, Chippewa, WI | Pass | State |
| 2021-11-30 | CRYSTAL FINISHING SYSTEMS INC - MOSINEE — high-priority violation on file | MOSINEE, Marathon, WI | Fail | State |
| 2021-11-30 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2021-11-30 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2021-11-30 | DELRIN USA, LLC, DELRIN USA - WASHINGTON WORKS | WASHINGTON, Wood, WV | Pass | State |
| 2021-11-29 | JOHN DEERE FOUNDRY WATERLOO | WATERLOO, Black Hawk, IA | Pass | State |
| 2021-11-29 | CITGO PETROLEUM CORP | ARLINGTON HEIGHTS, Cook, IL | Pass | State |
| 2021-11-29 | MARVIN WINDOWS AND DOORS | WARROAD, Roseau, MN | Pass | State |
| 2021-11-29 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2021-11-29 | MARATHON PERMIAN - BLUE STEEL 21 FEE CTB | MALAGA, Eddy, NM | Pass | State |
| 2021-11-29 | MARLAN EAST TANK BATTERY | EUNICE, Lea, NM | Pass | State |
| 2021-11-29 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2021-11-29 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2021-11-29 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2021-11-29 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2021-11-29 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.