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 |
|---|---|---|---|---|
| 2023-08-10 | APPALACHIA MIDSTREAM SERVICES, LLC, BATTLE RUN | VALLEY GROVE, Ohio, WV | Pass | State |
| 2023-08-10 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-08-10 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-08-10 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-08-10 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-08-10 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-08-09 | PETRO STAR, INC. / NORTH POLE REFINERY | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-08-09 | PETRO STAR, INC. / NORTH POLE REFINERY | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-08-09 | GOLDEN VALLEY ELECTRIC ASSOCIATION / HEALY POWER PLANT — high-priority violation on file | HEALY, Denali, AK | Pass | State |
| 2023-08-09 | GEORGIA PACIFIC | PENNINGTON, Choctaw, AL | Pass | State |
| 2023-08-09 | GEORGIA PACIFIC | PENNINGTON, Choctaw, AL | Pass | State |
| 2023-08-09 | DESOTO GATHERING COMPANY, LLC - GRIFFIN MOUNTAIN CPF-2 | JERUSALEM, Conway, AR | Pass | State |
| 2023-08-09 | DESOTO GATHERING COMPANY LLC - SOUTH BROWNIE CPF 2 | HATTIEVILLE, Conway, AR | Pass | State |
| 2023-08-09 | EQUILON ENTER. LLC, SHELL OIL PROD. US | CARSON, Los Angeles, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | NORTHERN CALIFORNIA POWER | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | TURLOCK IRRIGATION DIST-WALNUT ENERGY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-09 | NRO - AEROSPACE DATA FACIITY (ADF-C) | AURORA, Arapahoe, CO | Pass | State |
| 2023-08-09 | TEP ROCKY MTN- BAILEY COMPRESSOR STATION | SILT 2.2 MI. S OF, Garfield, CO | Pass | State |
| 2023-08-09 | TEP ROCKY MTN- BAILEY COMPRESSOR STATION | SILT 2.2 MI. S OF, Garfield, CO | Pass | State |
| 2023-08-09 | TEP ROCKY MTN- BAILEY COMPRESSOR STATION | SILT 2.2 MI. S OF, Garfield, CO | Pass | State |
| 2023-08-09 | TEP ROCKY MTN- BAILEY COMPRESSOR STATION | SILT 2.2 MI. S OF, Garfield, CO | Pass | State |
| 2023-08-09 | TEP ROCKY MTN- BAILEY COMPRESSOR STATION | SILT 2.2 MI. S OF, Garfield, CO | Pass | State |
| 2023-08-09 | BAYSWATER E&P - LEFFLER 13, 14, 23, 24-2 | AULT AREA, Weld, CO | N/A | State |
| 2023-08-09 | BAYSWATER E&P - LEFFLER 13, 14, 23, 24-2 | AULT AREA, Weld, CO | N/A | State |
| 2023-08-09 | PRAIRIE OPERATING CO - G&D HANKS TANK | EATON AREA, Weld, CO | Pass | State |
| 2023-08-09 | MIDDLESEX HOSPITAL | MIDDLETOWN, Middlesex, CT | Pass | State |
| 2023-08-09 | CRODA, INC — high-priority violation on file | NEW CASTLE, New Castle, DE | Pass | State |
| 2023-08-09 | CRODA, INC — high-priority violation on file | NEW CASTLE, New Castle, DE | Pass | State |
| 2023-08-09 | CRODA, INC — high-priority violation on file | NEW CASTLE, New Castle, DE | Pass | State |
| 2023-08-09 | CRODA, INC — high-priority violation on file | NEW CASTLE, New Castle, DE | Pass | State |
| 2023-08-09 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2023-08-09 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2023-08-09 | CITY OF GAINESVILLE (GRU) | GAINESVILLE, Alachua, FL | Pass | State |
| 2023-08-09 | FLORIDA GAS TRANSMISSION COMPANY, LLC | LECANTO, Citrus, FL | Pass | State |
| 2023-08-09 | FLORIDA GAS TRANSMISSION COMPANY, LLC | LECANTO, Citrus, FL | Pass | State |
| 2023-08-09 | FLORIDA GAS TRANSMISSION COMPANY, LLC | LECANTO, Citrus, FL | Pass | State |
| 2023-08-09 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2023-08-09 | TAMPA ELECTRIC COMPANY | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-09 | TAMPA ELECTRIC COMPANY | TAMPA, Hillsborough, FL | Pass | State |
| 2023-08-09 | WESTROCK CP, LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2023-08-09 | WESTROCK CP, LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2023-08-09 | FLORIDA POWER AND LIGHT COMPANY | LOXAHATCHEE, Palm Beach, FL | Pass | State |
| 2023-08-09 | FLORIDA POWER AND LIGHT COMPANY | LOXAHATCHEE, Palm Beach, FL | Pass | State |
| 2023-08-09 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-08-09 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-08-09 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-08-09 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-08-09 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-08-09 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-08-09 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-08-09 | MID-GEORGIA COGEN LP | KATHLEEN, Houston, GA | Pass | State |
| 2023-08-09 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Fail | State |
| 2023-08-09 | GOLDEN GRAIN ENERGY LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Fail | State |
| 2023-08-09 | IOWA FERTILIZER CO — high-priority violation on file | WEVER, Lee, IA | Pass | State |
| 2023-08-09 | CITY OF CASEY | CASEY, Clark, IL | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2023-08-09 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.