EPA Air · stack tests by year
Air-emissions stack tests in 2024
- 39,252Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2024
- California 18,905
- Ohio 2,721
- Oklahoma 1,804
- Indiana 1,704
- New Mexico 1,428
- Florida 1,427
- Wyoming 1,285
- Georgia 1,104
- Pennsylvania 905
- Alabama 721
- Arkansas 569
- Missouri 539
- Iowa 464
- Mississippi 437
- Colorado 400
- Washington 338
- Texas 271
- Wisconsin 269
- North Carolina 254
- Minnesota 250
- West Virginia 230
- South Carolina 223
- Kentucky 218
- Delaware 185
- Montana 180
- Michigan 159
- Virginia 159
- Alaska 158
- Utah 157
- Tennessee 155
- Nebraska 150
- North Dakota 138
- Arizona 126
- Connecticut 122
- New York 115
- Maine 114
- Louisiana 113
- Illinois 109
- Idaho 91
- Nevada 88
- Hawaii 67
- Kansas 64
- New Hampshire 61
- South Dakota 59
- Maryland 58
- Massachusetts 52
- Oregon 35
- Rhode Island 29
- District of Columbia 25
- New Jersey 8
- Puerto Rico 5
- Vermont 4
Other years
Air-emissions stack tests recorded in 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-10-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-10 | BONANZA CREEK - PRONGHORN 24-7 BOOSTER | KERSEY 14.7 MI. E OF, Weld, CO | Pass | State |
| 2024-10-10 | ESPN, INC. | BRISTOL, Hartford, CT | Pass | State |
| 2024-10-10 | FRES-CO SYSTEM USA INC | RED OAK, Montgomery, IA | Pass | State |
| 2024-10-10 | POET BIOREFINING - LIBERTY (EMMETSBURG) — high-priority violation on file | EMMETSBURG, Palo Alto, IA | Pass | State |
| 2024-10-10 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-10 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-10 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-10 | POET BIOREFINING PORTLAND LLC | PORTLAND, Jay, IN | Pass | State |
| 2024-10-10 | EAST KY POWER COOP - BAVARIAN LGTE | WALTON, Boone, KY | Pass | State |
| 2024-10-10 | MARTIN MARIETTA MATERIALS INC - YELLOW MEDICINE | GRANITE FALLS, Stearns, MN | Pass | State |
| 2024-10-10 | SOUTHERN STAR CENTRAL PIPELINE-PECULIAR | PECULIAR, Cass, MO | N/A | State |
| 2024-10-10 | SOUTHERN STAR CENTRAL PIPELINE-PECULIAR | PECULIAR, Cass, MO | N/A | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | CAPITAL QUARRIES CO INC JEFFERSON CITY STADIUM WEST QUARRY | JEFFERSON CITY, Cole, MO | Pass | State |
| 2024-10-10 | BUCKEYE TERMINALS LLC-ST LOUIS N TRMNL | SAINT LOUIS, St. Louis (city), MO | Pass | State |
| 2024-10-10 | COLUMBIA GULF TRANSMISSION LLC, INVERNESS COMPRESSOR STATION | INVERNESS, Humphreys, MS | Pass | State |
| 2024-10-10 | COLUMBIA GULF TRANSMISSION LLC, INVERNESS COMPRESSOR STATION | INVERNESS, Humphreys, MS | Pass | State |
| 2024-10-10 | COLUMBIA GULF TRANSMISSION LLC, INVERNESS COMPRESSOR STATION | INVERNESS, Humphreys, MS | Pass | State |
| 2024-10-10 | COLUMBIA GULF TRANSMISSION LLC, INVERNESS COMPRESSOR STATION | INVERNESS, Humphreys, MS | Pass | State |
| 2024-10-10 | REGULATOR MARINE, INC. | EDENTON, Chowan, NC | Pass | State |
| 2024-10-10 | FSC II, LLC - NORTH RALEIGH ASPHALT PLANT | WAKE FOREST, Wake, NC | Pass | State |
| 2024-10-10 | ONEOK ROCKIES MIDSTREAM, L.L.C. - BEAVERTAIL COMPRESSOR STATION - AQ | WATFORD CITY, McKenzie, ND | N/A | State |
| 2024-10-10 | ASH GROVE CEMENT CO — high-priority violation on file | LOUISVILLE, Cass, NE | Pass | State |
| 2024-10-10 | ASH GROVE CEMENT CO — high-priority violation on file | LOUISVILLE, Cass, NE | Pass | State |
| 2024-10-10 | PECOS COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-10-10 | PECOS COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-10-10 | BOUNDS COMPRESSOR STATION | WHITES CITY, Eddy, NM | Pass | State |
| 2024-10-10 | SAND DUNES NORTH CORRIDOR WEST COMPRESSION STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-10-10 | SAND DUNES NORTH CORRIDOR WEST COMPRESSION STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-10-10 | REVOLUTION COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-10-10 | EVERGREEN BATTERY RECYCLING LLC | NEWTON FALLS, Trumbull, OH | Pass | State |
| 2024-10-10 | ASCENT RESOURCES - UTICA LLC - SIDWELL WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-10 | ASCENT RESOURCES - UTICA LLC - SIDWELL WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-10 | ASCENT RESOURCES - UTICA LLC - SIDWELL WHL BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-10 | ASCENT RESOURCES - UTICA LLC - THREE DADS RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-10 | ASCENT RESOURCES - UTICA LLC - THREE DADS RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-10 | ASCENT RESOURCES - UTICA LLC - THREE DADS RCH BL | SAINT CLAIRSVILLE, Belmont, OH | Pass | State |
| 2024-10-10 | EOG RESOURCES, INC. - K WALLACE 4-11-6 PAD | CADIZ, Harrison, OH | Pass | State |
| 2024-10-10 | EOG RESOURCES, INC. - K WALLACE 4-11-6 PAD | CADIZ, Harrison, OH | Pass | State |
| 2024-10-10 | WILEY PAD 952982 | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-10-10 | WILEY PAD 952982 | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-10-10 | WILEY PAD 952982 | WOODSFIELD, Monroe, OH | Pass | State |
| 2024-10-10 | EI CERAMICS LLC | SHARONVILLE, Hamilton, OH | Pass | State |
| 2024-10-10 | EI CERAMICS LLC | SHARONVILLE, Hamilton, OH | Pass | State |
| 2024-10-10 | ET GATHERING PROCESSING LLC / MORRIS COMPRESSOR STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-10 | ET GATHERING PROCESSING LLC / FRISCO COMPRESSOR STATION | CHICKASHA, Grady, OK | Pass | State |
| 2024-10-10 | DCP OPERATING CO LP / SUNDOWN COMPRESSOR STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-10 | VM ARKOMA STACK LLC / RIVERVIEW COMPRESSOR STATION | ATWOOD, Hughes, OK | Pass | State |
| 2024-10-10 | KINGFISHER CITY OF / KINGFISHER MUNICIPAL POWER PLANT | KINGFISHER, Kingfisher, OK | Pass | State |
| 2024-10-10 | MUSTANG GAS PRODUCTS LLC / SOUTHEAST BOOSTER STATION DHGP | DOVER, Kingfisher, OK | Pass | State |
| 2024-10-10 | MARKWEST OKLAHOMA GAS CO LLC / DOVER COMPRESSOR STATION | DOVER, Kingfisher, OK | Pass | State |
| 2024-10-10 | MARKWEST OKLAHOMA GAS CO LLC / STANGL COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2024-10-10 | FW MIDCON I LLC / ROSIA 1709 2H 3H 4H 5H 18X WINTERS 1 | LOYAL, Kingfisher, OK | Pass | State |
| 2024-10-10 | DCP OPERATING CO LP / SKIPPER COMPRESSOR STATION | FOSTER, Stephens, OK | Pass | State |
| 2024-10-10 | YORK CNTY SOLID WASTE/YORK CNTY RESOURCE RECOVERY — high-priority violation on file | YORK, York, PA | Pass | State |
| 2024-10-10 | ERIE HARD CHROME INC/ERIE — high-priority violation on file | ERIE, Erie, PA | Pass | State |
| 2024-10-10 | ELKHORN GAS PROC LLC/KANE PLT | KANE, McKean, PA | Pass | State |
| 2024-10-10 | DIVERSIFIED MIDSTREAM LLC/TIOGA COMP STA | WELLSBORO, Tioga, PA | Pass | State |
| 2024-10-10 | EM RESOURCES LLC/MONTOUR PLT | DANVILLE, Montour, PA | Pending | State |
| 2024-10-10 | CAROLINA PALLETS & RECYCLING — high-priority violation on file | BELTON, Anderson, SC | Pass | State |
| 2024-10-10 | ORANGEBURG DEPARTMENT OF PUBLIC UTILITIES | ORANGEBURG, Orangeburg, SC | Pass | State |
| 2024-10-10 | ROGERS GROUP INC - GREER ASPHALT — high-priority violation on file | GREER, Greenville, SC | Pass | State |
| 2024-10-10 | BLYTHE BROTHERS ASPHALT CO LLC - ROCK HILL | ROCK HILL, York, SC | Pass | State |
| 2024-10-10 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-10 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2024-10-10 | USG PAPER ORANGE MILL — high-priority violation on file | ORANGE, Orange, TX | Pass | State |
| 2024-10-10 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-10-10 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-10-10 | HRSD - BOAT HARBOR WASTEWATER TREATMENT PLANT | NEWPORT NEWS, Newport News (city), VA | Pass | State |
| 2024-10-10 | GLOBALFOUNDRIES US 2 LLC | ESSEX, Chittenden, VT | Pass | State |
| 2024-10-10 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2024-10-10 | WASTE MANAGEMENT OF WISCONSIN, INC. - PHEASANT RUN RECYCLING AND DISPOSAL FACILI | BRISTOL, Kenosha, WI | Pass | State |
| 2024-10-10 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-10 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-10 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.