EPA Air · stack tests by year
Air-emissions stack tests in 2024
- 39,252Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2024
- California 18,905
- Ohio 2,721
- Oklahoma 1,804
- Indiana 1,704
- New Mexico 1,428
- Florida 1,427
- Wyoming 1,285
- Georgia 1,104
- Pennsylvania 905
- Alabama 721
- Arkansas 569
- Missouri 539
- Iowa 464
- Mississippi 437
- Colorado 400
- Washington 338
- Texas 271
- Wisconsin 269
- North Carolina 254
- Minnesota 250
- West Virginia 230
- South Carolina 223
- Kentucky 218
- Delaware 185
- Montana 180
- Michigan 159
- Virginia 159
- Alaska 158
- Utah 157
- Tennessee 155
- Nebraska 150
- North Dakota 138
- Arizona 126
- Connecticut 122
- New York 115
- Maine 114
- Louisiana 113
- Illinois 109
- Idaho 91
- Nevada 88
- Hawaii 67
- Kansas 64
- New Hampshire 61
- South Dakota 59
- Maryland 58
- Massachusetts 52
- Oregon 35
- Rhode Island 29
- District of Columbia 25
- New Jersey 8
- Puerto Rico 5
- Vermont 4
Other years
Air-emissions stack tests recorded in 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | DUKE ENERGY KENTUCKY, WOODSDALE GENERATING STATION | TRENTON, Butler, OH | Pass | State |
| 2024-11-20 | MILL CREEK WWTP | CINCINNATI, Hamilton, OH | Pass | State |
| 2024-11-20 | BCE MACH LLC / GRANT MORTON LORENZEN ANDREW JEREMY PA | EL RENO, Canadian, OK | Pass | State |
| 2024-11-20 | BCE MACH LLC / LIMELIGHT 4 33 11N 8W 2 3MHX PAD | UNION CITY, Canadian, OK | Pass | State |
| 2024-11-20 | PEOPLES ELECTRIC COOP / LITTLE DIXIE FACILITY | CENTRAHOMA, Coal, OK | Pass | State |
| 2024-11-20 | CALYX ENERGY III LLC / POCAHONTAS PAD | LAMAR, Hughes, OK | Pass | State |
| 2024-11-20 | SANTA FE OPERATING LLC / MCKAY COMPRESSOR STATION | MCALESTER, Pittsburg, OK | Pass | State |
| 2024-11-20 | SANTA FE OPERATING LLC / MCKAY COMPRESSOR STATION | MCALESTER, Pittsburg, OK | Pass | State |
| 2024-11-20 | ET GATHERING PROCESSING LLC / TRI COUNTY COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2024-11-20 | ET GATHERING PROCESSING LLC / TRI COUNTY COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2024-11-20 | ET GATHERING PROCESSING LLC / TRI COUNTY COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2024-11-20 | PA STATE UNIV/UNIV PARK CAMPUS | UNIVERSITY PARK, Centre, PA | Pass | State |
| 2024-11-20 | ARKEMA INC/WEST CHESTER — high-priority violation on file | WEST CHESTER, Chester, PA | Pass | State |
| 2024-11-20 | CRODA INC/DRAKETOWN ROAD | MILL HALL, Clinton, PA | Pass | State |
| 2024-11-20 | EXELON GENERATION CO/SOUTHWARK | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-11-20 | DENSO MANUFACTURING ATHENS TENNESSEE, INC. | ATHENS, McMinn, TN | Pass | State |
| 2024-11-20 | SMELTER SERVICE CORP. | MOUNT PLEASANT, Maury, TN | Pass | State |
| 2024-11-20 | KOPPERS PERFORMANCE CHEMICAL | MILLINGTON, Shelby, TN | Pass | Local |
| 2024-11-20 | MITSUBISHI CHEMICAL AMERICA (FORMERLY LUCITE INC.) | MEMPHIS, Shelby, TN | Pass | Local |
| 2024-11-20 | TESORO WEST COAST/FORMER BP AMOCO | SALT LAKE CITY, Salt Lake, UT | N/A | State |
| 2024-11-20 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2024-11-20 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2024-11-20 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-11-20 | DTM APPALACHIA GATHERING, LLC, MEPCO COMPRESSOR | MAIDSVILLE, Monongalia, WV | Pass | State |
| 2024-11-20 | PAUL WISSMACH GLASS CO., INC., PADEN CITY | PADEN CITY, Tyler, WV | Pass | State |
| 2024-11-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-20 | PINEDALE COMPLEX (HARVEST MIDSTREAM COMPANY) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-11-19 | BROOKLYN PPC, LLC | EVERGREEN, Conecuh, AL | Pass | State |
| 2024-11-19 | BASF CORPORATION | MCINTOSH, Washington, AL | Pass | State |
| 2024-11-19 | CLEARWATER PAPER CORPORATION (CYPRESS BEND) | ARKANSAS CITY, Desha, AR | Pass | State |
| 2024-11-19 | CLEARWATER PAPER CORPORATION (CYPRESS BEND) | ARKANSAS CITY, Desha, AR | Pass | State |
| 2024-11-19 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2024-11-19 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2024-11-19 | TRANSWESTERN PIPELINE - KINGMAN COMPRESSOR STATION | FORT ROCK ROAD, Mohave, AZ | Pass | State |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | BAKER COMMODITIES INC — high-priority violation on file | KERMAN, Fresno, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2024-11-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2024-11-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2024-11-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | CALIFORNIA DAIRIES, INC | TIPTON, Tulare, CA | Pass | Local |
| 2024-11-19 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2024-11-19 | OWENS-BROCKWAY GLASS - WINDSOR #28 — high-priority violation on file | WINDSOR, Weld, CO | Fail | State |
| 2024-11-19 | PRATT & WHITNEY, DIVISION OF RTX CORPORATION | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2024-11-19 | GALLAUDET UNIVERSITY — high-priority violation on file | WASHINGTON, District of Columbia, DC | Pass | State |
| 2024-11-19 | FLORIDA POWER & LIGHT COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-11-19 | FLORIDA POWER & LIGHT COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-11-19 | FLORIDA POWER & LIGHT COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2024-11-19 | TRADEMARK NITROGEN CORP | TAMPA, Hillsborough, FL | Pass | State |
| 2024-11-19 | TRADEMARK NITROGEN CORP | TAMPA, Hillsborough, FL | Pass | State |
| 2024-11-19 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-19 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-19 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-19 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-19 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-19 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-19 | OSCEOLA FARMS | PAHOKEE, Palm Beach, FL | Pass | State |
| 2024-11-19 | ARCH WOOD PROTECTION, INC. — high-priority violation on file | CONLEY, DeKalb, GA | Pass | State |
| 2024-11-19 | ARCH WOOD PROTECTION, INC. — high-priority violation on file | CONLEY, DeKalb, GA | Pass | State |
| 2024-11-19 | TROJAN BATTERY COMPANY, LLC | SANDERSVILLE, Washington, GA | Pass | State |
| 2024-11-19 | TROJAN BATTERY COMPANY, LLC | SANDERSVILLE, Washington, GA | Pass | State |
| 2024-11-19 | U S GYPSUM CO-FORT DODGE | FORT DODGE, Webster, IA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.