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 |
|---|---|---|---|---|
| 2024-10-28 | TATER TOT 2 CTB 5 | MALAGA, Eddy, NM | Pass | State |
| 2024-10-28 | RED TANK 26 BOO STATION | MONUMENT, Lea, NM | Pass | State |
| 2024-10-28 | EOG RESOURCES INC - SHADOW CTB | MALVERN, Carroll, OH | Fail | State |
| 2024-10-28 | EOG RESOURCES INC - SHADOW CTB | MALVERN, Carroll, OH | Pass | State |
| 2024-10-28 | EOG RESOURCES INC - SHADOW CTB | MALVERN, Carroll, OH | Pass | State |
| 2024-10-28 | PEOPLES ELECTRIC COOP / CENTRAHOMA — high-priority violation on file | CENTRAHOMA, Coal, OK | Pass | State |
| 2024-10-28 | PEOPLES ELECTRIC COOP / CENTRAHOMA — high-priority violation on file | CENTRAHOMA, Coal, OK | Pass | State |
| 2024-10-28 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-28 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-28 | CONTINENTAL RESOURCES / SINGER 2 18 7XH | BRADLEY, Grady, OK | Pass | State |
| 2024-10-28 | EXPAND OPERATING LLC/CANNELLA SUS PAD | MONTROSE, Susquehanna, PA | Pass | State |
| 2024-10-28 | MICHELIN NORTH AMERICA INC - SPARTANBURG FACILITY (US3) | SPARTANBURG, Spartanburg, SC | Pass | State |
| 2024-10-28 | WISCONSIN ELECTRIC POWER COMPANY (DBA WE ENERGIES) - ROTHSCHILD BIOMASS COGENERA — high-priority violation on file | ROTHSCHILD, Marathon, WI | Pass | State |
| 2024-10-28 | WE ENERGIES-OAK CREEK POWER PLANT — high-priority violation on file | OAK CREEK, Monroe, WI | Pass | State |
| 2024-10-28 | MCKINLEY PAPER AND PACKAGING COMPANY — high-priority violation on file | COMBINED LOCKS, Ozaukee, WI | Pass | State |
| 2024-10-27 | CDU BOOSTER STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-10-27 | CDU BOOSTER STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-10-26 | STERILIZATION SERVICES OF GEORGIA | ATLANTA, Fulton, GA | Pass | State |
| 2024-10-26 | KANSAS CITY SAUSAGE CO, LLC DBA COASTAL PROTEIN | GODWIN, Sampson, NC | Pending | State |
| 2024-10-26 | ROUNDTOP ENERGY/AUBURN | YARDLEY, Susquehanna, PA | Pass | State |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2024-10-25 | TEP ROCKY MTN - MAUTZ RANCH | RANGELY 22.0 MI. SE OF, Rio Blanco, CO | Fail | State |
| 2024-10-25 | NEW HAVEN /DPW (LANDFILL) | NEW HAVEN, New Haven, CT | Pass | State |
| 2024-10-25 | STERILIZATION SERVICES OF GEORGIA | ATLANTA, Fulton, GA | Pass | State |
| 2024-10-25 | GA POWER CO. - PLANT SCHERER | JULIETTE, Monroe, GA | Pass | State |
| 2024-10-25 | THE JACKSON LABORATORY | BAR HARBOR, Hancock, ME | Pass | State |
| 2024-10-25 | THE JACKSON LABORATORY | BAR HARBOR, Hancock, ME | Pass | State |
| 2024-10-25 | ROBBINS LUMBER, INC. | SEARSMONT, Waldo, ME | Pass | State |
| 2024-10-25 | GENERAL MOTORS LLC DETROIT-HAMTRAMCK ASSEMBLY | DETROIT, Wayne, MI | Pass | State |
| 2024-10-25 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2024-10-25 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-25 | WILLOW LAKE GAS PROCESSING PLANT | MALAGA, Eddy, NM | Pass | State |
| 2024-10-25 | RAMBO COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-10-25 | BOREALIS MINE | HAWTHORNE, Mineral, NV | Pass | State |
| 2024-10-25 | VALIDUS ENERGY II MIDCON LLC / BATTLESHIP 1 12 10 7 PAD | UNION CITY, Canadian, OK | Pass | State |
| 2024-10-25 | CONTINENTAL RESOURCES / Z 21 3 17 8XHW | MIDDLEBERG, Grady, OK | Pass | State |
| 2024-10-25 | GLEN GERY CORP/HANLEY PLANT — high-priority violation on file | SUMMERVILLE, Jefferson, PA | Pass | State |
| 2024-10-25 | ADHESIVES RESEARCH INC/GLEN ROCK — high-priority violation on file | GLEN ROCK, York, PA | Pass | State |
| 2024-10-25 | ASSAI ENERGY LLC - KEYSTONE LANDFILL SITE | DUNMORE, Lackawanna, PA | Pass | State |
| 2024-10-25 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Fail | State |
| 2024-10-25 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2024-10-25 | LES PROJECT HOLDINGS, LLC F/K/A MICHIGAN CONGENERATION SYSTEMS, INC. | LORTON, Fairfax, VA | Pass | State |
| 2024-10-25 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-10-24 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-24 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-24 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-24 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2024-10-24 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | CALERA, Shelby, AL | Pass | State |
| 2024-10-24 | HOLLOWELL INDUSTRIES, INC. | WEST HELENA, Phillips, AR | Fail | State |
| 2024-10-24 | GLENDALE MUN SANITARY LANDFILL/FLD OPER — high-priority violation on file | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2024-10-24 | PG&E- TOPOCK | NEEDLES, San Bernardino, CA | Pass | Local |
| 2024-10-24 | NEW-INDY OXNARD, LLC | OXNARD, Ventura, CA | Pass | Local |
| 2024-10-24 | CRESTONE - STATE BIERSTADT 4-65 35-34 NO | AURORA AREA, Arapahoe, CO | N/A | State |
| 2024-10-24 | CRESTONE - STATE BIERSTADT 4-65 35-34 NO | AURORA AREA, Arapahoe, CO | N/A | State |
| 2024-10-24 | CRESTONE - STATE BIERSTADT 4-65 35-34 NO | AURORA AREA, Arapahoe, CO | N/A | State |
| 2024-10-24 | COLORADO SPRINGS UTILITIES - NIXON PLT | FOUNTAIN AREA, El Paso, CO | Pass | State |
| 2024-10-24 | TEP ROCKY MT - TR 11-5-697 PROD. PIT | PARACHUTE 11.8 MI. N OF, Garfield, CO | Pass | State |
| 2024-10-24 | PLAINS END, LLC | ARVADA, Jefferson, CO | Pass | State |
| 2024-10-24 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2024-10-24 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-24 | CEMEX CONSTRUCTION MATERIALS FL. LLC. | MIAMI, Miami-Dade, FL | Pass | State |
| 2024-10-24 | WESTROCK CP, LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2024-10-24 | WESTROCK CP, LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2024-10-24 | WESTROCK CP, LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2024-10-24 | HANWHA Q CELLS GEORGIA, INC. — high-priority violation on file | WHITE, Bartow, GA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.