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 |
|---|---|---|---|---|
| 2023-12-20 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | MONROE, Monroe, MI | Pass | State |
| 2023-12-20 | GREEN PLAINS FAIRMONT LLC | FAIRMONT, Martin, MN | N/A | State |
| 2023-12-20 | MAGRUDER LIMESTONE | SUNRISE BEACH, Camden, MO | Pass | State |
| 2023-12-20 | MAGRUDER LIMESTONE | SUNRISE BEACH, Camden, MO | Pass | State |
| 2023-12-20 | MAGRUDER LIMESTONE | SUNRISE BEACH, Camden, MO | Pass | State |
| 2023-12-20 | MAGRUDER LIMESTONE | SUNRISE BEACH, Camden, MO | Pass | State |
| 2023-12-20 | MAGRUDER LIMESTONE | SUNRISE BEACH, Camden, MO | Pass | State |
| 2023-12-20 | HEXION INC. - FAYETTEVILLE FACILITY | FAYETTEVILLE, Cumberland, NC | Pass | State |
| 2023-12-20 | SWEET TEA 2H 3H 4H 5H CTB | MALAGA, Eddy, NM | Pass | State |
| 2023-12-20 | DARK STAR COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-12-20 | CABO WABO COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-12-20 | MICHAEL K FED TB | LA HUERTA, Eddy, NM | Pass | State |
| 2023-12-20 | HORNED FROG COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-12-20 | HORNED FROG COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2023-12-20 | PPG INDUSTRIES - RESIN — high-priority violation on file | CIRCLEVILLE, Pickaway, OH | Pass | State |
| 2023-12-20 | ASCENT RESOURCES - UTICA LLC - LAKE 20-11N-7W | FREEPORT, Harrison, OH | Pass | State |
| 2023-12-20 | ASCENT RESOURCES - UTICA LLC - LAKE 20-11N-7W | FREEPORT, Harrison, OH | Pass | State |
| 2023-12-20 | ASCENT RESOURCES - UTICA LLC - LAKE 20-11N-7W | FREEPORT, Harrison, OH | Pass | State |
| 2023-12-20 | TARGA PIPELINE MIDCONTINENT LLC / WATKINS COMPRESSOR STATION | MADILL, Marshall, OK | Pass | State |
| 2023-12-20 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2023-12-20 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2023-12-20 | BOUNTY TRANSFER LLC / DYER COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2023-12-20 | ETC NORTHEAST FLD SVC LLC/PIKE COMP STA | ROCHESTER, Beaver, PA | Pass | State |
| 2023-12-20 | CHIEF GATHERING LLC/PMG ANNIE WELLPAD | NICHOLSON, Susquehanna, PA | Pass | State |
| 2023-12-20 | TSOUROUS, A. PAD 1 | MONTROSE, Susquehanna, PA | Pass | State |
| 2023-12-20 | RING NECK ENERGY & FEED LLC — high-priority violation on file | ONIDA, Sully, SD | Pass | State |
| 2023-12-20 | TENNESSEE VALLEY AUTHORITY - CUMBERLAND FOSSIL PLANT — high-priority violation on file | CUMBERLAND CITY, Stewart, TN | Pass | State |
| 2023-12-20 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2023-12-20 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2023-12-20 | APPALACHIAN POWER COMPANY, JOHN AMOS PLANT | WINFIELD, Putnam, WV | Pass | State |
| 2023-12-20 | LOVELL PLANT (GEORGIA-PACIFIC GYPSUM) | LOVELL, Big Horn, WY | Pass | State |
| 2023-12-19 | CARMEUSE LIME & STONE INC | SAGINAW, Shelby, AL | Pass | State |
| 2023-12-19 | CARMEUSE LIME & STONE INC | SAGINAW, Shelby, AL | Pass | State |
| 2023-12-19 | WESTERN FOODS DELTA REGION | PINE BLUFF, Jefferson, AR | Pass | State |
| 2023-12-19 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2023-12-19 | NEW NGC, INC. | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2023-12-19 | COLTON POWER, LP | COLTON, San Bernardino, CA | Pass | Local |
| 2023-12-19 | COLTON POWER, LP | COLTON, San Bernardino, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | CALIFORNIA DAIRIES, INC. — high-priority violation on file | TURLOCK, Stanislaus, CA | Fail | Local |
| 2023-12-19 | DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file | GREELEY AREA, Weld, CO | Pass | State |
| 2023-12-19 | QUIKRETE CONSTRUCTION MATERIALS, LLC | NEWBERRY, Alachua, FL | Pass | State |
| 2023-12-19 | QUIKRETE CONSTRUCTION MATERIALS, LLC | NEWBERRY, Alachua, FL | Pass | State |
| 2023-12-19 | KRAFT HEINZ FOODS COMPANY | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-12-19 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2023-12-19 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2023-12-19 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2023-12-19 | GA POWER CO. PLANT YATES | NEWNAN, Coweta, GA | Pass | State |
| 2023-12-19 | GRAIN PROCESSING CORP — high-priority violation on file | MUSCATINE, Muscatine, IA | Pass | State |
| 2023-12-19 | MOLEX LLC | LISLE, DuPage, IL | Pass | State |
| 2023-12-19 | MOLEX LLC | LISLE, DuPage, IL | Pass | State |
| 2023-12-19 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-12-19 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-12-19 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-12-19 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-12-19 | NORTH VERNON INDUSTRY CORPORATION | NORTH VERNON, Jennings, IN | Pass | State |
| 2023-12-19 | UNITED STATES GYPSUM COMPANY | EAST SHOALS, Martin, IN | Pass | State |
| 2023-12-19 | NUCOR STEEL — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2023-12-19 | NUCOR STEEL — high-priority violation on file | CRAWFORDSVILLE, Montgomery, IN | Pass | State |
| 2023-12-19 | ADAC AUTOMOTIVE MUSKEGON PLANTS | MUSKEGON, Muskegon, MI | Pending | State |
| 2023-12-19 | UNIVERSITY OF MICHIGAN | ANN ARBOR, Washtenaw, MI | Pass | State |
| 2023-12-19 | SOUTHEAST BERRIEN COUNTY LANDFILL AUTHORITY | NILES, Berrien, MI | Pass | State |
| 2023-12-19 | POET BIOREFINING - PRESTON | PRESTON, Fillmore, MN | Pass | State |
| 2023-12-19 | CAMBRIA CO | LE SUEUR, Le Sueur, MN | N/A | State |
| 2023-12-19 | ENERSYS ENERGY PRODUCTS INC - SPRINGFIELD 2 | SPRINGFIELD, Greene, MO | Pass | State |
| 2023-12-19 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2023-12-19 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2023-12-19 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2023-12-19 | RICHARD ABERNATHY GRADING AND SEPTIC, INC. - MT. ULLA SITE | MOORESVILLE, Iredell, NC | Pass | State |
| 2023-12-19 | VULCAN CONSTRUCTION MATERIALS, LLC - SPRUCE PINE QUARRY | BAKERSVILLE, Mitchell, NC | Pass | State |
| 2023-12-19 | HESS TIOGA GAS PLANT LLC - TIOGA GAS PLANT - AQ | TIOGA, Williams, ND | Pass | State |
| 2023-12-19 | POET BIOREFINING-FAIRMONT LLC — high-priority violation on file | FAIRMONT, Fillmore, NE | N/A | State |
| 2023-12-19 | AUBURN GENERATING PLANT | AUBURN, Nemaha, NE | Pass | State |
| 2023-12-19 | WHITE CITY ROAD COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2023-12-19 | CABO WABO COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-12-19 | CABO WABO COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.