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 |
|---|---|---|---|---|
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | CROSSBOW COMPRESSOR STATION (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-11-15 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2023-11-15 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2023-11-14 | SOUTHERN NATURAL GAS | ANNISTON, Calhoun, AL | Pass | State |
| 2023-11-14 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2023-11-14 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2023-11-14 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2023-11-14 | JOHNS MANVILLE INC. | PHENIX CITY, Russell, AL | Pass | State |
| 2023-11-14 | WESTERN FOODS DELTA REGION | PINE BLUFF, Jefferson, AR | Pass | State |
| 2023-11-14 | DESOTO GATHERING COMPANY, LLC - GRAVEL HILL CPF-4 | SCOTLAND, Van Buren, AR | Pass | State |
| 2023-11-14 | DESOTO GATHERING COMPANY, LLC - GRAVEL HILL CPF-4 | SCOTLAND, Van Buren, AR | Pass | State |
| 2023-11-14 | ATLAS ASPHALT, INC. - MIDWEST PLANT | BATESVILLE, Independence, AR | Pass | State |
| 2023-11-14 | HP05 | PRESCOTT, Yavapai, AZ | Pass | State |
| 2023-11-14 | MITSUBISHI CHEMICAL CARBON FIBER AND COMPOSITES — high-priority violation on file | SACRAMENTO, Sacramento, CA | Fail | Local |
| 2023-11-14 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | FRESNO/CLOVIS REGIONAL WWTP — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | GUARDIAN INDUSTRIES CORP | KINGSBURG, Fresno, CA | Fail | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2023-11-14 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.