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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their stack tests in 2023. It lists 26,911 stack tests recorded nationwide in 2023.