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 |
|---|---|---|---|---|
| 2023-09-07 | BONANZA POWER PLANT | BONANZA, Uintah, UT | Pass | U.S. EPA |
| 2023-09-07 | WEST FRASER HUGULEY | HUGULEY, Chambers, AL | Pass | State |
| 2023-09-07 | LOUISIANA-PACIFIC CORPORATION | THOMASVILLE, Clarke, AL | Pass | State |
| 2023-09-07 | COLORMASTERS INC | ALBERTVILLE, Marshall, AL | Pass | State |
| 2023-09-07 | TRUSSVILLE LIQUEFIED NATURAL GAS PLANT | TRUSSVILLE, Jefferson, AL | Pass | Local |
| 2023-09-07 | NOVO BIOPOWER, LLC | SNOWFLAKE, Navajo, AZ | Pass | State |
| 2023-09-07 | CEDAR HILLS QUARRY | TOLLESON, Maricopa, AZ | Pass | State |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | PHILLIPS 66 PIPELINE LLC — high-priority violation on file | CALIFORNIA, Undetermined, CA | Pass | Local |
| 2023-09-07 | PHILLIPS 66 PIPELINE LLC — high-priority violation on file | CALIFORNIA, Undetermined, CA | Pass | Local |
| 2023-09-07 | PHILLIPS 66 PIPELINE LLC — high-priority violation on file | CALIFORNIA, Undetermined, CA | Pass | Local |
| 2023-09-07 | PHILLIPS 66 PIPELINE LLC — high-priority violation on file | CALIFORNIA, Undetermined, CA | Pass | Local |
| 2023-09-07 | PHILLIPS 66 PIPELINE LLC — high-priority violation on file | CALIFORNIA, Undetermined, CA | Pass | Local |
| 2023-09-07 | PHILLIPS 66 PIPELINE LLC — high-priority violation on file | CALIFORNIA, Undetermined, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | E&B NATIONAL RESOURCES MANAGEMENT | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-07 | PHILLIPS 66 PIPELINE - DENVER TERMINAL | COMMERCE CITY, Adams, CO | Pass | State |
| 2023-09-07 | UNIV OF COLO - ANSCHUTZ MEDICAL CAMPUS | AURORA, Adams, CO | Pass | State |
| 2023-09-07 | REWORLD CONNECTICUT COMPANY — high-priority violation on file | PRESTON, New London, CT | Pass | State |
| 2023-09-07 | REWORLD CONNECTICUT COMPANY — high-priority violation on file | PRESTON, New London, CT | Pass | State |
| 2023-09-07 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-09-07 | MIAMI-DADE WATER AND SEWER DEPARTMENT | MIAMI, Miami-Dade, FL | Pass | State |
| 2023-09-07 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-09-07 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-09-07 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-09-07 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-09-07 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-09-07 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-09-07 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-09-07 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-09-07 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-09-07 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-09-07 | HELCO - KAPUA | KAPUA, Hawaii, HI | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2023-09-07 | SCOUT ENERGY - SATANTA GAS PLANT | ULYSSES, Grant, KS | Pass | State |
| 2023-09-07 | HARSHMAN CONST. - VAN METER QUARRY (AIR) | VAN METER QUARRY, Wabaunsee, KS | Pass | State |
| 2023-09-07 | CORNING INCORPORATED | HARRODSBURG, Mercer, KY | Pass | State |
| 2023-09-07 | ELEMENT MATERIALS TECHNOLOGY TRANSPORTATION US LLC | BOWLING GREEN, Warren, KY | Pass | State |
| 2023-09-07 | MAINE WOODS PELLET COMPANY, LLC | ATHENS, Somerset, ME | Pass | State |
| 2023-09-07 | CONSUMERS ENERGY - RAY COMPRESSOR STATION | ARMADA, Macomb, MI | Pass | State |
| 2023-09-07 | FORD MOTOR CO-KANSAS CITY ASSEMBLY PLANT | CLAYCOMO, Clay, MO | N/A | State |
| 2023-09-07 | FORD MOTOR CO-KANSAS CITY ASSEMBLY PLANT | CLAYCOMO, Clay, MO | N/A | State |
| 2023-09-07 | FORD MOTOR CO-KANSAS CITY ASSEMBLY PLANT | CLAYCOMO, Clay, MO | N/A | State |
| 2023-09-07 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-07 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-07 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-07 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-07 | WESTLAKE CHEMICALS AND VINYLS LLC | ABERDEEN, Monroe, MS | Pass | State |
| 2023-09-07 | WESTLAKE CHEMICALS AND VINYLS LLC | ABERDEEN, Monroe, MS | Pass | State |
| 2023-09-07 | MAYMEAD, INC. - ELKIN PLANT | ELKIN, Surry, NC | Pass | State |
| 2023-09-07 | TURNKEY RECYCLING & ENVIRONMENTAL ENTERPRISES | ROCHESTER, Strafford, NH | Pass | State |
| 2023-09-07 | TURNKEY RECYCLING & ENVIRONMENTAL ENTERPRISES | ROCHESTER, Strafford, NH | Pass | State |
| 2023-09-07 | CALPINE NEW JERSEY GENERATION (FORMERLY: CONECTIV ATL GEN, LLC) | MILLVILLE, Cumberland, NJ | Pass | State |
| 2023-09-07 | JACK SLEEPER STATE COM TB | LOVING, Eddy, NM | Pass | State |
| 2023-09-07 | LONGWOOD - BOUGAINVILLE COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2023-09-07 | DEEP FLAT BOOSTER STATION | AVALON, Eddy, NM | Pass | State |
| 2023-09-07 | DEEP FLAT BOOSTER STATION | AVALON, Eddy, NM | Pass | State |
| 2023-09-07 | ASTORIA GENERATING STATION | ASTORIA, Queens, NY | Pass | State |
| 2023-09-07 | ALGONQUIN GAS: STONY POINT COMPRESSOR STA | STONY POINT, Rockland, NY | Pass | State |
| 2023-09-07 | GREENIDGE STATION | DRESDEN, Yates, NY | Pass | State |
| 2023-09-07 | FIBER-TECH INDUSTRIES INC — high-priority violation on file | WASHINGTON COURT HOUSE, Fayette, OH | Fail | State |
| 2023-09-07 | TENNESSEE GAS PIPELINE - STATION 214 | CARROLLTON, Carroll, OH | Pass | State |
| 2023-09-07 | TENNESSEE GAS PIPELINE - STATION 214 | CARROLLTON, Carroll, OH | Pass | State |
| 2023-09-07 | TENNESSEE GAS PIPELINE - STATION 214 | CARROLLTON, Carroll, OH | Pass | State |
| 2023-09-07 | TENNESSEE GAS PIPELINE - STATION 214 | CARROLLTON, Carroll, OH | Pass | State |
| 2023-09-07 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-09-07 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-09-07 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-09-07 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
| 2023-09-07 | ROVER PIPELINE - MAINLINE CS2 | WOOSTER, Wayne, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.