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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their 2024 stack tests. Nationwide, 39,252 stack tests were recorded in 2024.