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 |
|---|---|---|---|---|
| 2023-08-03 | ATLANTA GAS LIGHT CO. — high-priority violation on file | BALL GROUND, Cherokee, GA | Pass | State |
| 2023-08-03 | ATLANTA GAS LIGHT CO. — high-priority violation on file | BALL GROUND, Cherokee, GA | Pass | State |
| 2023-08-03 | HELCO - KEAHOLE — high-priority violation on file | KAILUA KONA, Hawaii, HI | Pass | State |
| 2023-08-03 | LINCOLNWAY ENERGY LLC | NEVADA, Story, IA | Pass | State |
| 2023-08-03 | HK CONTRACTORS INC - TETON | TETON, Fremont, ID | Fail | State |
| 2023-08-03 | EAST KY POWER COOP - SPURLOCK STATION | MAYSVILLE, Mason, KY | Pass | State |
| 2023-08-03 | BIG RIVERS ELECTRIC CORP - DB WILSON STATION — high-priority violation on file | CENTERTOWN, Ohio, KY | Pass | State |
| 2023-08-03 | DDP SPECIALTY ELECTRONIC MATERIALS US, LLC | MIDLAND, Midland, MI | Pass | State |
| 2023-08-03 | CARPENTER COMPANY | MOUNT AIRY, Surry, NC | Pass | State |
| 2023-08-03 | GEORGIA-PACIFIC WOOD PRODUCTS LLC - DUDLEY PLYWOOD/CNS | DUDLEY, Wayne, NC | Pass | State |
| 2023-08-03 | CARBON VALLEY BOOSTER STATION | ARTESIA, Eddy, NM | Pass | State |
| 2023-08-03 | CARBON VALLEY BOOSTER STATION | ARTESIA, Eddy, NM | Pass | State |
| 2023-08-03 | SALADO DRAW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-08-03 | SALADO DRAW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-08-03 | BOREALIS MINE | HAWTHORNE, Mineral, NV | Pass | State |
| 2023-08-03 | EOG RESOURCES, INC. - MITCHELL 34-13-5 PAD | CARROLLTON, Carroll, OH | Pass | State |
| 2023-08-03 | VALLEY ASPHALT CORP - PLANT #11 | XENIA, Greene, OH | Pass | State |
| 2023-08-03 | CONTINENTAL RESOURCES / GREEN ACRES 5 36 25XHW SHAW 3 1 12XHW | DIBBLE, Grady, OK | Pass | State |
| 2023-08-03 | CONTINENTAL RESOURCES / GREEN ACRES 5 36 25XHW SHAW 3 1 12XHW | DIBBLE, Grady, OK | Pass | State |
| 2023-08-03 | ET GATHERING PROCESSING LLC / BLACK BEAR COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2023-08-03 | ET GATHERING PROCESSING LLC / BLACK BEAR COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2023-08-03 | MONTOUR LLC/MONTOUR SES | WASHINGTONVILLE, Montour, PA | Pass | State |
| 2023-08-03 | ENERGY TRANSFER MKT & TERM LP/FULLERTON TERM — high-priority violation on file | WHITEHALL, Lehigh, PA | Pass | State |
| 2023-08-03 | MINARD RUN OIL CO/ZIMMERMAN HILL STA | WARREN, Warren, PA | Pass | State |
| 2023-08-03 | MARKWEST LIBERTY MIDSTREAM/WELLING COMP STA | CLAYSVILLE, Washington, PA | Pass | State |
| 2023-08-03 | NFG MIDSTREAM TROUT RUN LLC/HAGERMAN GAS & PROC METERING FAC | TROUT RUN, Lycoming, PA | Pass | State |
| 2023-08-03 | EXPAND OPERATING LLC/VALENTINE CPF 1 | CLIFFORD, Susquehanna, PA | Pass | State |
| 2023-08-03 | EXPAND OPERATING LLC/VALENTINE CPF 1 | CLIFFORD, Susquehanna, PA | Pass | State |
| 2023-08-03 | INTERNATIONAL PAPER - GEORGETOWN MILL | GEORGETOWN, Georgetown, SC | Pass | State |
| 2023-08-03 | TRANSCONTINENTAL GAS PIPELINE COMPANY, LLC | MOORE, Spartanburg, SC | Pass | State |
| 2023-08-03 | MOST, INC.- MISSOURI SMELTING TECHNOLOGY, INC. | JACKSON, Madison, TN | Pass | State |
| 2023-08-03 | DOMTAR PAPER COMPANY, LLC | KINGSPORT, Sullivan, TN | Pass | State |
| 2023-08-03 | GERDAU MIDLOTHIAN PLANT | MIDLOTHIAN, Ellis, TX | N/A | State |
| 2023-08-03 | GERDAU MIDLOTHIAN PLANT | MIDLOTHIAN, Ellis, TX | N/A | State |
| 2023-08-03 | CEDAR GROVE COMPOST CO | MAPLE VALLEY, King, WA | Pass | Local |
| 2023-08-03 | PLEASANTS ENERGY, LLC, WAVERLY | WILLOW ISLAND, Pleasants, WV | Pass | State |
| 2023-08-03 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2023-08-03 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2023-08-03 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2023-08-03 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2023-08-03 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2023-08-03 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2023-08-02 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2023-08-02 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | CALERA, Shelby, AL | Pass | State |
| 2023-08-02 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-02 | CHEVRON USA — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-08-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | DART CONTAINER CORP | LODI, San Joaquin, CA | Pass | Local |
| 2023-08-02 | PLATTE RIVER POWER AUTHORITY - RAWHIDE | WELLINGTON 9.3 MI. N OF, Larimer, CO | Pass | State |
| 2023-08-02 | RAND-WHITNEY CONTAINER BOARD LP | MONTVILLE, TOWN OF, New London, CT | Pass | State |
| 2023-08-02 | PREFERRED MATERIALS, INC | NAPLES, Collier, FL | Pass | State |
| 2023-08-02 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2023-08-02 | ORLANDO UTILITIES COMMISSION | ORLANDO, Orange, FL | Pass | State |
| 2023-08-02 | SOUTH FLORIDA WATER MANAGEMENT DISTRICT | PALM BEACH COUNTY, Palm Beach, FL | Pass | State |
| 2023-08-02 | SOUTH FLORIDA WATER MANAGEMENT DISTRICT | PALM BEACH COUNTY, Palm Beach, FL | Fail | State |
| 2023-08-02 | SOUTH FLORIDA WATER MANAGEMENT DISTRICT | PALM BEACH COUNTY, Palm Beach, FL | Pass | State |
| 2023-08-02 | SOUTH FLORIDA WATER MANAGEMENT DISTRICT | PALM BEACH COUNTY, Palm Beach, FL | Pass | State |
| 2023-08-02 | ATLANTA GAS LIGHT CO. — high-priority violation on file | BALL GROUND, Cherokee, GA | Pass | State |
| 2023-08-02 | ATLANTA GAS LIGHT CO. — high-priority violation on file | BALL GROUND, Cherokee, GA | Pass | State |
| 2023-08-02 | FLORIDA ROCK INDUSTRIES, INC. - MACON QUARRY | JULIETTE, Monroe, GA | Pass | State |
| 2023-08-02 | FLORIDA ROCK INDUSTRIES, INC. - MACON QUARRY | JULIETTE, Monroe, GA | Pass | State |
| 2023-08-02 | HAMMOND GROUP INCORPORATED | HAMMOND, Lake, IN | Pass | State |
| 2023-08-02 | HAMMOND GROUP INCORPORATED | HAMMOND, Lake, IN | Pass | State |
| 2023-08-02 | CORNEJO & SONS - WICHITA AIR CURTAIN COMBUSTOR (PORTABLE)(AIR) | WICHITA, Sedgwick, KS | Pass | State |
| 2023-08-02 | SAILES #1 COMPRESSOR STATION | SAILES, Bienville, LA | Pass | State |
| 2023-08-02 | RAVEN POWER FORT SMALLWOOD LLC | CURTIS BAY, Anne Arundel, MD | Pass | State |
| 2023-08-02 | PAR HEALTH USA LLC | ROCHESTER, Oakland, MI | Pass | State |
| 2023-08-02 | DTE GAS COMPANY - MILFORD COMPRESSOR STATION | MILFORD, Oakland, MI | Pending | State |
| 2023-08-02 | WOLVERINE POWER SUPPLY COOPERATIVE INC. - ALPINE POWER PLANT | ELMIRA, Otsego, MI | Pass | State |
| 2023-08-02 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2023-08-02 | CAMBRIA CO | LE SUEUR, Le Sueur, MN | Pass | State |
| 2023-08-02 | GEOTEK | STEWARTVILLE, Olmsted, MN | N/A | State |
| 2023-08-02 | ROCKIES EXPRESS PIPELINE LLC | MEXICO, Audrain, MO | Pass | State |
| 2023-08-02 | ROCKIES EXPRESS PIPELINE LLC | MEXICO, Audrain, MO | Pass | State |
| 2023-08-02 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2023-08-02 | WINSTON PLYWOOD AND VENEER LLC | LOUISVILLE, Winston, MS | Pass | State |
| 2023-08-02 | MUD PLATTE RIVER POTABLE WATER | BELLEVUE, Sarpy, NE | N/A | State |
| 2023-08-02 | THE HARRIS CONSTRUCTION CO., INC. | PETERBOROUGH, Hillsborough, NH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.