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 |
|---|---|---|---|---|
| 2024-12-10 | THE CONTEST CTB | JAL, Lea, NM | Pass | State |
| 2024-12-10 | NITRO COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-12-10 | NITRO COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-12-10 | CEDAR CREEK WPCP | WANTAGH, Nassau, NY | Pass | State |
| 2024-12-10 | DUREZ NIAGARA | NIAGARA FALLS, Niagara, NY | Pass | State |
| 2024-12-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-12-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-12-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-12-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-12-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-12-10 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-12-10 | ASCENT RESOURCES - UTICA LLC - OLIVER CLR BL | MARTINS FERRY, Belmont, OH | Pass | State |
| 2024-12-10 | ASCENT RESOURCES - UTICA LLC - OLIVER CLR BL | MARTINS FERRY, Belmont, OH | Pass | State |
| 2024-12-10 | ASCENT RESOURCES - UTICA LLC - OLIVER CLR BL | MARTINS FERRY, Belmont, OH | Pass | State |
| 2024-12-10 | ET GATHERING PROCESSING LLC / SAN BOIS COMPRESSOR STATION | QUINTON, Pittsburg, OK | Pass | State |
| 2024-12-10 | ET GATHERING PROCESSING LLC / SAN BOIS COMPRESSOR STATION | QUINTON, Pittsburg, OK | Pass | State |
| 2024-12-10 | PONDEROSA GATHERING LLC / PONDEROSA COMPRESSOR STATION 1 | QUINTON, Pittsburg, OK | Pass | State |
| 2024-12-10 | PONDEROSA GATHERING LLC / PONDEROSA COMPRESSOR STATION 1 | QUINTON, Pittsburg, OK | Pass | State |
| 2024-12-10 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2024-12-10 | ET GATHERING PROCESSING LLC / BLACK BEAR COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2024-12-10 | ET GATHERING PROCESSING LLC / BLACK BEAR COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2024-12-10 | TEXAS EASTERN TRANS LP/WAYNESBURG STA | WAYNESBURG, Greene, PA | Pass | State |
| 2024-12-10 | GREENTREE BOOSTER COMPRESSOR/ BROCKWAY | BROCKWAY, Elk, PA | Pass | State |
| 2024-12-10 | MAINESBURG GS LP/MAINESBURG GATHERING STA | MANSFIELD, Tioga, PA | Fail | State |
| 2024-12-10 | PA GEN ENERGY CO LLC/TRACT 729 COMPRESSOR STATION | WATERVILLE, Lycoming, PA | Pass | State |
| 2024-12-10 | EXPAND OPERATING LLC/STONE BRA PAD | WYALUSING, Bradford, PA | Pass | State |
| 2024-12-10 | BACARDI CORPORATION | CATANO, Catano, PR | Pass | U.S. EPA |
| 2024-12-10 | VALERO REFINING COMPANY-TN LLC | MEMPHIS, Shelby, TN | Pass | Local |
| 2024-12-10 | NORTHRUP GRUMMAN SYSTEMS - PROMONTORY (FORMERLY ATK) | PROMONTORY (HISTORICAL), Box Elder, UT | Pass | State |
| 2024-12-10 | ST. GEORGE POWER MILLCREEK/RED ROCK | UTAH, Undetermined, UT | Pass | State |
| 2024-12-10 | ST. GEORGE POWER MILLCREEK/RED ROCK | UTAH, Undetermined, UT | Pass | State |
| 2024-12-10 | PACKAGING CORPORATION OF AMERICA — high-priority violation on file | WALLULA, Walla Walla, WA | Pass | State |
| 2024-12-10 | CASCADES TISSUE GROUP - WI INC | EAU CLAIRE, Eau Claire, WI | Pass | State |
| 2024-12-10 | MANITOWOC PUBLIC UTILITIES | MANITOWOC, Manitowoc, WI | Pass | State |
| 2024-12-10 | BIG SANDY PEAKER PLANT, LLC, NEAL | KENOVA, Wayne, WV | Pass | State |
| 2024-12-10 | SCOTT COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-12-10 | SCOTT COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-12-09 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2024-12-09 | DESOTO GATHERING COMPANY, LLC - COVE CREEK CPF-4 | DAMASCUS, Van Buren, AR | Pass | State |
| 2024-12-09 | RAZORBACK GATHERING COMPANY, LLC. - JUDSONIA CPF 1 | JUDSONIA, White, AR | Pass | State |
| 2024-12-09 | RAZORBACK GATHERING COMPANY, LLC. - JUDSONIA CPF 1 | JUDSONIA, White, AR | Pass | State |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | FRITO-LAY NORTH AMERICA, INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-12-09 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2024-12-09 | WHITE SPRINGS AGRICULTURAL CHEMICALS,INC | WHITE SPRINGS, Hamilton, FL | Pass | State |
| 2024-12-09 | WOLF CREEK LANDFILL | DRY BRANCH, Twiggs, GA | Pass | State |
| 2024-12-09 | WOLF CREEK LANDFILL | DRY BRANCH, Twiggs, GA | Pass | State |
| 2024-12-09 | WOLF CREEK LANDFILL | DRY BRANCH, Twiggs, GA | Pass | State |
| 2024-12-09 | WOLF CREEK LANDFILL | DRY BRANCH, Twiggs, GA | Pass | State |
| 2024-12-09 | WOLF CREEK LANDFILL | DRY BRANCH, Twiggs, GA | Pass | State |
| 2024-12-09 | WOLF CREEK LANDFILL | DRY BRANCH, Twiggs, GA | Pass | State |
| 2024-12-09 | ARCHER DANIELS MIDLAND DM SOYBEAN PLANT | DES MOINES, Polk, IA | Fail | Local |
| 2024-12-09 | RIVERSIDE HOSPITAL | KANKAKEE, Kankakee, IL | Pass | State |
| 2024-12-09 | RIVERSIDE HOSPITAL | KANKAKEE, Kankakee, IL | Pass | State |
| 2024-12-09 | RIVERSIDE HOSPITAL | KANKAKEE, Kankakee, IL | Pass | State |
| 2024-12-09 | PLACID REFINING COMPANY LLC - PORT ALLEN REFINERY | PORT ALLEN, West Baton Rouge, LA | Pass | State |
| 2024-12-09 | CITY OF BATH LANDFILL | BATH, Sagadahoc, ME | Pass | State |
| 2024-12-09 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2024-12-09 | WASTE MANAGEMENT DISPOSAL SERVICES OF MAINE, INC. — high-priority violation on file | NORRIDGEWOCK, Somerset, ME | Pass | State |
| 2024-12-09 | WASTE MANAGEMENT DISPOSAL SERVICES OF MAINE, INC. — high-priority violation on file | NORRIDGEWOCK, Somerset, ME | Pass | State |
| 2024-12-09 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2024-12-09 | IREDELL TRANSMISSION, LLC | STATESVILLE, Iredell, NC | Pass | State |
| 2024-12-09 | BULLDOG COMPRESSOR STATION | LOCO HILLS, Eddy, NM | Pass | State |
| 2024-12-09 | PETRY BOOSTER STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-12-09 | EOG - ODIN COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-12-09 | EOG - ODIN COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-12-09 | ZIA HILLS CENTRAL FACILITY | MALAGA, Lea, NM | Pass | State |
| 2024-12-09 | ZIA HILLS CENTRAL FACILITY | MALAGA, Lea, NM | Pass | State |
| 2024-12-09 | NITRO COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-12-09 | VAL VERDE GAS TREATMENT PLANT | BLOOMFIELD, San Juan, NM | Pass | State |
| 2024-12-09 | PARADISE COMPRESSOR STATION #3 | PARADISE VALLEY, Humboldt, NV | Pass | State |
| 2024-12-09 | EOG RESOURCES, INC. - TOWE 29-12-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2024-12-09 | EOG RESOURCES, INC. - TOWE 29-12-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2024-12-09 | EOG RESOURCES, INC. - TOWE 29-12-6 PAD | BOWERSTON, Harrison, OH | Pass | State |
| 2024-12-09 | ET GATHERING PROCESSING LLC / HATCHETT COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2024-12-09 | ET GATHERING PROCESSING LLC / HATCHETT COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2024-12-09 | FW MIDCON I LLC / FAITH 4H 12 BILLY 1H 12 | LINDSAY, Grady, OK | Pass | State |
| 2024-12-09 | FW MIDCON I LLC / VINSON 2H 3H 14 DICKEY 1H 14 | RUSH SPRINGS, Grady, OK | Pass | State |
| 2024-12-09 | GREYLOCK MIDSTREAM LLC/CUMBERLAND HENDERSON COMP STA | CARMICHAELS, Greene, PA | Pass | State |
| 2024-12-09 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2024-12-09 | GAS TRANSMISSION NORTHWEST #7 | WASHINGTON, Undetermined, WA | Pending | State |
| 2024-12-09 | STARBUCKS MANUFACTURING CORPORATION | KENT, King, WA | Pass | Local |
| 2024-12-09 | AHLSTROM RHINELANDER LLC | RHINELANDER, Outagamie, WI | Pass | State |
| 2024-12-09 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-09 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-09 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-09 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-12-08 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2024-12-08 | REWORLD PLYMOUTH/ PLYMOUTH — high-priority violation on file | CONSHOHOCKEN, Montgomery, PA | Pass | State |
| 2024-12-06 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2024-12-06 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2024-12-06 | MERIDIAN AGGREGATES - BLACK ROCK QUARRY | BLACK ROCK, Lawrence, AR | Pass | State |
| 2024-12-06 | MERIDIAN AGGREGATES - BLACK ROCK QUARRY | BLACK ROCK, Lawrence, AR | Pass | State |
| 2024-12-06 | MERIDIAN AGGREGATES - BLACK ROCK QUARRY | BLACK ROCK, Lawrence, AR | Pass | State |
| 2024-12-06 | MERIDIAN AGGREGATES - BLACK ROCK QUARRY | BLACK ROCK, Lawrence, AR | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.