EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-10-24 | AMRIZE MIDWEST INC - NONMETALLIC | EAGAN, Dakota, MN | Pass | State |
| 2023-10-24 | BLACK OAK POWER PRODUCERS LLC | HARTVILLE, Wright, MO | Pass | State |
| 2023-10-24 | MUELLER COPPER TUBE COMPANY LLC | FULTON, Itawamba, MS | Pass | State |
| 2023-10-24 | MUELLER COPPER TUBE COMPANY LLC | FULTON, Itawamba, MS | Pass | State |
| 2023-10-24 | MERCK SHARP & DOHME LLC | WILSON, Wilson, NC | Pass | State |
| 2023-10-24 | INGREDION, INC. — high-priority violation on file | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2023-10-24 | INGREDION, INC. — high-priority violation on file | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2023-10-24 | INGREDION, INC. — high-priority violation on file | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2023-10-24 | ANDEAVOR FIELD SERVICES LLC - STANLEY COMPRESSOR STATION - AQ | STANLEY, Mountrail, ND | Pass | State |
| 2023-10-24 | TURBOCAM, INC. | BARRINGTON, Strafford, NH | Pass | State |
| 2023-10-24 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-24 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-24 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-24 | BLACK HAWK/BLACK CAT 16 STATE COM CTB | ATOKA, Eddy, NM | Pass | State |
| 2023-10-24 | GCC RIO GRANDE INC-TIJERAS PLANT | TIJERAS, Bernalillo, NM | Pass | Local |
| 2023-10-24 | GOLD QUARRY OPERATIONS — high-priority violation on file | CARLIN, Eureka, NV | Incomplete | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | SEALED AIR CORPORATION | STREETSBORO, Portage, OH | Pass | State |
| 2023-10-24 | ENABLE GAS TRANSMISSION LLC / CUSTER COMPRESSOR STATION | ARAPAHO, Custer, OK | Pass | State |
| 2023-10-24 | ENABLE GAS TRANSMISSION LLC / CUSTER COMPRESSOR STATION | ARAPAHO, Custer, OK | Pass | State |
| 2023-10-24 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-10-24 | BCE MACH III LLC / LSEOU 94 2HO LSEOU 94 3HO LSEOU 95 3HO | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-10-24 | BCE MACH III LLC / LSEOU 13 2HO LSEOU 14 4HO LSEOU 29 4HO | CRESCENT, Kingfisher, OK | Pass | State |
| 2023-10-24 | BCE MACH III LLC / LANKARD FAMILY 3 16 6 3HO 3 16 6 4HO 3 | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-10-24 | BCE MACH III LLC / LSEOU 91 5HO 91 6HO PAD | CASHION, Kingfisher, OK | Pass | State |
| 2023-10-24 | PETROLINK ENERGY LLC / CABLE COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2023-10-24 | PETROLINK ENERGY LLC / CABLE COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2023-10-24 | ET GATHERING PROCESSING LLC / DOYLE COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2023-10-24 | ET GATHERING PROCESSING LLC / DOYLE COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2023-10-24 | TEXAS EASTERN TRANS LP/BERNVILLE STA | BERNVILLE, Berks, PA | Pass | State |
| 2023-10-24 | NEXTERA RENEWABLE FUELS LLC/CUMBERLAND CNTY LDFL | SHIPPENSBURG, Cumberland, PA | Pass | State |
| 2023-10-24 | EQM GATHERING OPCO LLC/CYGRYMUS COMP STA | NEW FREEPORT, Greene, PA | Pass | State |
| 2023-10-24 | WILLIAMS FIELD SVC CO LLC/JONES COMP STA | FRIENDSVILLE, Susquehanna, PA | Pass | State |
| 2023-10-24 | PRATT CARLISLE CORRUGATING LLC/CARLISLE | CARLISLE, Cumberland, PA | Pass | State |
| 2023-10-24 | CHILDRENS HOSP OF PHILA/ PHILA | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2023-10-24 | APAC - ATLANTIC INC - HARDEEVILLE ASPHALT PLANT | HARDEEVILLE, Jasper, SC | Pass | State |
| 2023-10-24 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-10-24 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-10-24 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-10-24 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-10-24 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-10-24 | KINDER MORGAN ALTAMONT - SOUTH | DUCHESNE, Duchesne, UT | Pass | State |
| 2023-10-24 | KINDER MORGAN ALTAMONT - SOUTH | DUCHESNE, Duchesne, UT | Pass | State |
| 2023-10-24 | KINDER MORGAN ALTAMONT - SOUTH | DUCHESNE, Duchesne, UT | Pass | State |
| 2023-10-24 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2023-10-24 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2023-10-24 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2023-10-24 | AMAZON DATA SERVICES, INC. IAD-140/141/143 | STERLING, Loudoun, VA | Pass | State |
| 2023-10-24 | ALLAN MYERS VA INC DBA ALLAN MYERS MATERIALS | IVOR, Southampton, VA | Pass | State |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Fail | Local |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Fail | Local |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Pass | Local |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Fail | Local |
| 2023-10-24 | LENZ ENTERPRISES INC | STANWOOD, Snohomish, WA | Fail | Local |
| 2023-10-24 | NORTHERN STATES PWR CO WHEATON GEN STA | EAU CLAIRE, Chippewa, WI | Pass | State |
| 2023-10-24 | QUAD/GRAPHICS INC - LOMIRA | LOMIRA, Dodge, WI | Pass | State |
| 2023-10-24 | ERGON - WEST VIRGINIA, INC., NEWELL | NEWELL, Hancock, WV | Pass | State |
| 2023-10-24 | GREEN RIVER WORKS (TATA CHEMICALS (SODA ASH) PARTNERS) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-24 | GREEN RIVER WORKS (TATA CHEMICALS (SODA ASH) PARTNERS) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-23 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2023-10-23 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2023-10-23 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2023-10-23 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2023-10-23 | AMRIZE CEMENT, INC. | THEODORE, Mobile, AL | Pass | State |
| 2023-10-23 | AMRIZE CEMENT, INC. | THEODORE, Mobile, AL | Pass | State |
| 2023-10-23 | AMRIZE CEMENT, INC. | THEODORE, Mobile, AL | Pass | State |
| 2023-10-23 | MERIT ENERGY COMPANY, LLC - PETERPENDER CP | CHARLESTON, Franklin, AR | Pass | State |
| 2023-10-23 | MERIT ENERGY COMPANY, LLC - PETERPENDER CP | CHARLESTON, Franklin, AR | Pass | State |
| 2023-10-23 | MERIT ENERGY COMPANY, LLC - PETERPENDER CP | CHARLESTON, Franklin, AR | Pass | State |
| 2023-10-23 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2023-10-23 | OWENS BROCKWAY GLASS | TRACY, San Joaquin, CA | Pass | Local |
| 2023-10-23 | AURORA CONV CENT- GAYLORD ROCKIES RESORT | AURORA, Adams, CO | Pass | State |
| 2023-10-23 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-10-23 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-10-23 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-10-23 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-23 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-23 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-23 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-23 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-23 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-23 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-23 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-23 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-23 | TOYOTA INDUSTRIES COMPRESSOR PARTS AMERICA, CO. | PENDERGRASS, Jackson, GA | Pass | State |
| 2023-10-23 | ELITE OCTANE, LLC — high-priority violation on file | ATLANTIC, Cass, IA | Pass | State |
| 2023-10-23 | ILLINOIS CEMENT CO | LASALLE, La Salle, IL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.