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 |
|---|---|---|---|---|
| 2024-10-23 | KING'S HAWAIIAN BAKERY | FLOWERY BRANCH, Hall, GA | Pass | State |
| 2024-10-23 | HYALUS, INC. | HAWKINSVILLE, Pulaski, GA | Pass | State |
| 2024-10-23 | HYALUS, INC. | HAWKINSVILLE, Pulaski, GA | Pass | State |
| 2024-10-23 | VALERO RENEWABLE FUELS CO LLC-ALBERTCITY | ALBERT CITY, Buena Vista, IA | Pass | State |
| 2024-10-23 | ZINPRO CORP - GARNER — high-priority violation on file | GARNER, Hancock, IA | Fail | State |
| 2024-10-23 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2024-10-23 | OSMIUM DATA CENTER — high-priority violation on file | WEST DES MOINES, Warren, IA | Pass | State |
| 2024-10-23 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2024-10-23 | NICOR GAS | LEXINGTON, McLean, IL | Pass | State |
| 2024-10-23 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-23 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-23 | THYSSENKRUPP CRANKSHAFT COMPANY | VEEDERSBURG, Fountain, IN | Pass | State |
| 2024-10-23 | HAMMOND GROUP INCORPORATED | HAMMOND, Lake, IN | Pass | State |
| 2024-10-23 | TRADEBE TREATMENT AND RECYCLING LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2024-10-23 | TRADEBE TREATMENT AND RECYCLING LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2024-10-23 | CARDINAL FG COMPANY (AIR) | SPRING HILL, Johnson, KS | Pass | State |
| 2024-10-23 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pass | State |
| 2024-10-23 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pass | State |
| 2024-10-23 | OPPD SARPY COUNTY STATION | BELLEVUE, Sarpy, NE | N/A | State |
| 2024-10-23 | COLT REFINING, INC. | MERRIMACK, Hillsborough, NH | Pass | State |
| 2024-10-23 | BAY MEADOWS COMPRESSOR STATION | WHITES CITY, Eddy, NM | Pass | State |
| 2024-10-23 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-23 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-23 | AQUEDUCT COMPRESSOR STATION | WHITES CITY, Eddy, NM | Pass | State |
| 2024-10-23 | LONGWOOD - STATELINE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-10-23 | LONGWOOD - STATELINE COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-10-23 | TEXANA COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-10-23 | TEXANA COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-10-23 | BERRY BOOSTER STATION | EUNICE, Lea, NM | Pass | State |
| 2024-10-23 | NITRO COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-10-23 | NITRO COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-10-23 | GATO GRANDE 16 CTB 1 | MALAGA, Lea, NM | Pass | State |
| 2024-10-23 | PILOT PEAK PLANT | WEST WENDOVER, Elko, NV | Pass | State |
| 2024-10-23 | ONEOK FIELD SERVICES CO LLC / EAST PUTNAM COMPRESSOR STATION | PUTNAM, Dewey, OK | Pass | State |
| 2024-10-23 | ONEOK FIELD SERVICES CO LLC / EAST PUTNAM COMPRESSOR STATION | PUTNAM, Dewey, OK | Pass | State |
| 2024-10-23 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2024-10-23 | CONTINENTAL RESOURCES / MAY 1 21 16XH MAY 2 21H | ALEX, Grady, OK | Pass | State |
| 2024-10-23 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2024-10-23 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2024-10-23 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2024-10-23 | EOG RESOURCES INC / HAWK DUAL CTB | NEWCASTLE, McClain, OK | Pass | State |
| 2024-10-23 | LANCASTER CNTY SWMA/SUSQ RESOURCE MGMT COMPLEX — high-priority violation on file | HARRISBURG, Dauphin, PA | Pass | State |
| 2024-10-23 | WILLIAMS FIELD SVC CO LLC/KANE ROAD COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-10-23 | WILLIAMS FIELD SVC CO LLC/WILCOX COMP STA | TUNKHANNOCK, Wyoming, PA | Pass | State |
| 2024-10-23 | EXPAND OPERATING LLC/BERNARD MCCULLEY WELLPAD | WEST ALEXANDER, Washington, PA | Pass | State |
| 2024-10-23 | ADVANSIX (FORMERLY HONEYWELL/FRANKFORD PLT) — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2024-10-23 | ACCOYA USA, LLC | CITY OF KINGSPORT, Sullivan, TN | Pass | State |
| 2024-10-23 | MUELLER CO. LLC — high-priority violation on file | CHATTANOOGA, Hamilton, TN | Pass | Local |
| 2024-10-23 | AB MAURI FOOD INC | MEMPHIS, Shelby, TN | Pass | Local |
| 2024-10-23 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-10-23 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-10-23 | PACIFICORP LAKESIDE (SUMMIT VINEYARD) | VINEYARD, Utah, UT | Pass | State |
| 2024-10-23 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2024-10-23 | ROANOKE CEMENT COMPANY | TROUTVILLE, Botetourt, VA | Pass | State |
| 2024-10-23 | AMAZON DATA SERVICES INC - IAD-134/135/136 | CHANTILLY, Fairfax, VA | Pass | State |
| 2024-10-23 | FERNDALE STORAGE TERMINAL | FERNDALE, Whatcom, WA | Pass | Local |
| 2024-10-23 | KING COUNTY WASTEWATER TREATMENT DIVISION WEST POINT TREATMENT PLANT | SEATTLE, King, WA | Pass | Local |
| 2024-10-23 | WPL - RIVERSIDE ENERGY CENTER | BELOIT, Rusk, WI | Pass | State |
| 2024-10-22 | ALASKA ELECTRIC AND ENERGY COOPERATIVE / SOLDOTNA COMBUSTION TURBINE PLANT | KENAI, Kenai Peninsula, AK | Pass | State |
| 2024-10-22 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-22 | DESOTO GATHERING COMPANY, LLC - NORTH YELLOWSTONE CPF-2 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA DAIRIES, INC. | FRESNO, Fresno, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-22 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-22 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-22 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-22 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-22 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-22 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-22 | CERTAINTEED CORP — high-priority violation on file | CHOWCHILLA, Madera, CA | Pass | Local |
| 2024-10-22 | PLAINS END, LLC | ARVADA, Jefferson, CO | Pass | State |
| 2024-10-22 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2024-10-22 | DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file | KEENESBURG 5.2 MI. N OF, Weld, CO | Pass | State |
| 2024-10-22 | BONANZA CREEK - ANTELOPE CPF 13-21 | KERSEY 10.4 MI. E OF, Weld, CO | Fail | State |
| 2024-10-22 | BONANZA CREEK - ANTELOPE CPF 13-21 | KERSEY 10.4 MI. E OF, Weld, CO | Fail | State |
| 2024-10-22 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-22 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-22 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-22 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-22 | FARMERS LIMESTONE, LLC | PERRY, Houston, GA | Pass | State |
| 2024-10-22 | HYALUS, INC. | HAWKINSVILLE, Pulaski, GA | Pass | State |
| 2024-10-22 | HYALUS, INC. | HAWKINSVILLE, Pulaski, GA | Pass | State |
| 2024-10-22 | HYALUS, INC. | HAWKINSVILLE, Pulaski, GA | Pass | State |
| 2024-10-22 | GRAIN PROCESSING CORP — high-priority violation on file | MUSCATINE, Muscatine, IA | Fail | State |
| 2024-10-22 | OSMIUM DATA CENTER — high-priority violation on file | WEST DES MOINES, Warren, IA | Pass | State |
| 2024-10-22 | GAS TRANSMISSION NORTHWEST - COMPRESSOR STATION 5 - ATHOL | ATHOL, Kootenai, ID | Pass | State |
| 2024-10-22 | AHLSTROM-MUNKSJO FILTRATION LLC | TAYLORVILLE, Christian, IL | Pass | State |
| 2024-10-22 | NICOR GAS | HUDSON, McLean, IL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.