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 |
|---|---|---|---|---|
| 2023-10-19 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | BUTLER, Choctaw, AL | Pass | State |
| 2023-10-19 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | BUTLER, Choctaw, AL | Pass | State |
| 2023-10-19 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | BUTLER, Choctaw, AL | Pass | State |
| 2023-10-19 | AMERICA1 INDUSTRIES LLC — high-priority violation on file | LEIGHTON, Colbert, AL | Pass | State |
| 2023-10-19 | AMERICA1 INDUSTRIES LLC — high-priority violation on file | LEIGHTON, Colbert, AL | Pass | State |
| 2023-10-19 | VANTIVE US HEALTHCARE, LLC. | MOUNTAIN HOME, Baxter, AR | Pass | State |
| 2023-10-19 | SO CAL GAS - BLYTHE | BLYTHE, Riverside, CA | Pass | Local |
| 2023-10-19 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2023-10-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2023-10-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2023-10-19 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2023-10-19 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-10-19 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Fail | State |
| 2023-10-19 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Fail | State |
| 2023-10-19 | U S DEPT OF AGRICULTURE | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-10-19 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-19 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-19 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-19 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-19 | REX LUMBER, BRISTOL, LLC | BRISTOL, Liberty, FL | Pass | State |
| 2023-10-19 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-19 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-19 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-19 | UNITED STATES SUGAR SAVANNAH REFINERY — high-priority violation on file | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-19 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-19 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-19 | WINTERSET MUNICIPAL UTILITIES | WINTERSET (HISTORICAL), Madison, IA | Pass | State |
| 2023-10-19 | WINTERSET MUNICIPAL UTILITIES | WINTERSET (HISTORICAL), Madison, IA | Pass | State |
| 2023-10-19 | WINTERSET MUNICIPAL UTILITIES | WINTERSET (HISTORICAL), Madison, IA | Pass | State |
| 2023-10-19 | WINTERSET MUNICIPAL UTILITIES | WINTERSET (HISTORICAL), Madison, IA | Pass | State |
| 2023-10-19 | WINTERSET MUNICIPAL UTILITIES | WINTERSET (HISTORICAL), Madison, IA | Pass | State |
| 2023-10-19 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Pass | State |
| 2023-10-19 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Pass | State |
| 2023-10-19 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | HARTLEY, O'Brien, IA | Pass | State |
| 2023-10-19 | MTBT - MARSHALLTOWN | MARSHALLTOWN, Marshall, IA | Pass | State |
| 2023-10-19 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2023-10-19 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2023-10-19 | BWXT NUCLEAR OPERATIONS GROUP INCORPORATED | MOUNT VERNON, Posey, IN | Pass | State |
| 2023-10-19 | BWXT NUCLEAR OPERATIONS GROUP INCORPORATED | MOUNT VERNON, Posey, IN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.