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 |
|---|---|---|---|---|
| 2024-10-16 | PENNAY, G PAD 1 | KINGSLEY, Susquehanna, PA | Pass | State |
| 2024-10-16 | TSOUROUS, A. PAD 1 | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-10-16 | RI RESOURCE RECOVERY CORP-CENTRAL LNDFL | JOHNSTON, TOWN OF, Providence, RI | Pass | State |
| 2024-10-16 | WBI ENERGY TRANSMISSION, INC | BELLE FOURCHE, Butte, SD | Pass | State |
| 2024-10-16 | VALERO PARTNERS MEMPHIS, LLC-MEMPHIS TRUCK RACK | MEMPHIS, Shelby, TN | Pass | Local |
| 2024-10-16 | COMPASS MINERALS | UTAH, Undetermined, UT | Pending | State |
| 2024-10-16 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2024-10-16 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2024-10-16 | DIGITAL REALTY (DIGITAL LOUDOUN 3 & 4, LLC) | ASHBURN, Loudoun, VA | Pass | State |
| 2024-10-16 | AMAZON DATA SERVICES INC IAD-169/179 | ASHBURN, Loudoun, VA | Pass | State |
| 2024-10-16 | COLUMBIA GAS TRANSMISSION CORPORATION | LOUISA, Louisa, VA | Pass | State |
| 2024-10-16 | DIDION MILLING INC. | CAMBRIA, Columbia, WI | Pass | State |
| 2024-10-16 | GRANGER SODA ASH FACILITY (WE SODA WYOMING LP) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-10-15 | CONSTELLIUM — high-priority violation on file | MUSCLE SHOALS, Colbert, AL | Pass | State |
| 2024-10-15 | CONSTELLIUM — high-priority violation on file | MUSCLE SHOALS, Colbert, AL | Pass | State |
| 2024-10-15 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2024-10-15 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2024-10-15 | GP CELLULOSE ALABAMA RIVER CELLULOSE LLC | PERDUE HILL, Monroe, AL | Pass | State |
| 2024-10-15 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Pass | State |
| 2024-10-15 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Pass | State |
| 2024-10-15 | WARRIOR MET COAL GAS, LLC | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2024-10-15 | WARRIOR MET COAL GAS, LLC | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2024-10-15 | WARRIOR MET COAL GAS, LLC | TUSCALOOSA, Tuscaloosa, AL | Pass | State |
| 2024-10-15 | ANTHONY TIMBERLANDS, INC. - BEARDEN | BEARDEN, Ouachita, AR | Pass | State |
| 2024-10-15 | DESOTO GATHERING COMPANY, LLC - SW GREER LAKE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2024-10-15 | DESOTO GATHERING COMPANY, LLC - SW GREER LAKE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2024-10-15 | CMC STEEL FABRICATORS | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2024-10-15 | SILGAN CONTAINERS | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2024-10-15 | EL SEGUNDO ENERGY CENTER LLC | EL SEGUNDO, Los Angeles, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | AERA ENERGY — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-15 | COLORADO INTERSTATE GAS- KIT CARSON C.S. | KIT CARSON 6.6 MI. S OF, Cheyenne, CO | Pass | State |
| 2024-10-15 | COLORADO INTERSTATE GAS- KIT CARSON C.S. | KIT CARSON 6.6 MI. S OF, Cheyenne, CO | Pass | State |
| 2024-10-15 | QB ENERGY - PICEANCE CREEK CS — high-priority violation on file | MEEKER 16.9 MI. SW OF, Rio Blanco, CO | Pass | State |
| 2024-10-15 | HIGHPOINT - GRINDE 1-64-5_4 | HUDSON AREA, Weld, CO | Pass | State |
| 2024-10-15 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | N/A | State |
| 2024-10-15 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-10-15 | FLORIDA POWER & LIGHT COMPANY (PCC) | COCOA, Brevard, FL | Pass | State |
| 2024-10-15 | BAPTIST MEDICAL CENTER . | JACKSONVILLE, Duval, FL | Pass | State |
| 2024-10-15 | GA POWER CO. PLANT YATES | NEWNAN, Coweta, GA | Pass | State |
| 2024-10-15 | GA POWER CO. PLANT YATES | NEWNAN, Coweta, GA | Pass | State |
| 2024-10-15 | TOYOTA INDUSTRIES COMPRESSOR PARTS AMERICA, CO. | PENDERGRASS, Jackson, GA | Pass | State |
| 2024-10-15 | RAINBOW FERTILIZER, LLC | AMERICUS, Sumter, GA | Pass | State |
| 2024-10-15 | RAINBOW FERTILIZER, LLC | AMERICUS, Sumter, GA | Pass | State |
| 2024-10-15 | ALA IMUA | KAPOLEI, Honolulu, HI | Pass | State |
| 2024-10-15 | ABSOLUTE ENERGY LLC-SAINT ANSGAR (MONA) | SAINT ANSGAR, Mitchell, IA | Pass | State |
| 2024-10-15 | ADM GRAIN COMPANY | MONTPELIER, Blackford, IN | Pass | State |
| 2024-10-15 | ADM GRAIN COMPANY | MONTPELIER, Blackford, IN | Pass | State |
| 2024-10-15 | ADM GRAIN COMPANY | MONTPELIER, Blackford, IN | Pass | State |
| 2024-10-15 | ADM GRAIN COMPANY | MONTPELIER, Blackford, IN | Pass | State |
| 2024-10-15 | ADM GRAIN COMPANY | MONTPELIER, Blackford, IN | Pass | State |
| 2024-10-15 | ADM GRAIN COMPANY | MONTPELIER, Blackford, IN | Pass | State |
| 2024-10-15 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Pass | State |
| 2024-10-15 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Pass | State |
| 2024-10-15 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Pass | State |
| 2024-10-15 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Pass | State |
| 2024-10-15 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Pass | State |
| 2024-10-15 | ARCHER DANIELS MIDLAND COMPANY — high-priority violation on file | FRANKFORT, Clinton, IN | Fail | State |
| 2024-10-15 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2024-10-15 | IDS BLAST FINISHING | INDIANAPOLIS, Marion, IN | Pass | State |
| 2024-10-15 | IDS BLAST FINISHING | INDIANAPOLIS, Marion, IN | Pass | State |
| 2024-10-15 | IDS BLAST FINISHING | INDIANAPOLIS, Marion, IN | Pass | State |
| 2024-10-15 | IDS BLAST FINISHING | INDIANAPOLIS, Marion, IN | Pass | State |
| 2024-10-15 | BRIGHTMARK PLASTICS ASHLEY OPCO LLC — high-priority violation on file | ASHLEY, Steuben, IN | Pass | State |
| 2024-10-15 | BRIGHTMARK PLASTICS ASHLEY OPCO LLC — high-priority violation on file | ASHLEY, Steuben, IN | Pass | State |
| 2024-10-15 | MILFORD REGIONAL MEDICAL CENTER INC | MILFORD, TOWN OF, Worcester, MA | N/A | State |
| 2024-10-15 | NATIONAL GALVANIZING HS PROCESSING LP | MONROE, Monroe, MI | Pending | State |
| 2024-10-15 | POET BIOREFINING - PRESTON | PRESTON, Fillmore, MN | Pass | State |
| 2024-10-15 | HIGHWATER ETHANOL LLC | LAMBERTON, Redwood, MN | Pass | State |
| 2024-10-15 | SAVAGE RIVERPORT LLC | SAVAGE, Scott, MN | Pass | State |
| 2024-10-15 | HEARTLAND CORN PRODUCTS | WINTHROP, Sibley, MN | Pass | State |
| 2024-10-15 | BUZZI UNICEM USA, MIDWEST DIV | CAPE GIRARDEAU, Cape Girardeau, MO | Pass | State |
| 2024-10-15 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
| 2024-10-15 | WEST FRASER US EWP LLC — high-priority violation on file | GUNTOWN, Lee, MS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.