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 |
|---|---|---|---|---|
| 2024-10-22 | HARRISON STEEL CASTINGS COMPANY — high-priority violation on file | ATTICA, Fountain, IN | Pass | State |
| 2024-10-22 | HARRISON STEEL CASTINGS COMPANY — high-priority violation on file | ATTICA, Fountain, IN | Pass | State |
| 2024-10-22 | HARRISON STEEL CASTINGS COMPANY — high-priority violation on file | ATTICA, Fountain, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | WABASH STEEL COMPANY LLC — high-priority violation on file | VINCENNES, Knox, IN | Pass | State |
| 2024-10-22 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2024-10-22 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2024-10-22 | HAMMOND GROUP INCORPORATED | HAMMOND, Lake, IN | Pass | State |
| 2024-10-22 | PINKERTON TOBACCO CO LP | OWENSBORO, Daviess, KY | Pass | State |
| 2024-10-22 | CENTURY ALUMINUM SEBREE LLC | ROBARDS, Henderson, KY | Pending | State |
| 2024-10-22 | MM TAUNTON ENERGY | TAUNTON, TOWN OF, Bristol, MA | Pass | State |
| 2024-10-22 | CONSTELLATION POWER - PERRYMAN POWER PLANT | ABERDEEN, Harford, MD | Pass | State |
| 2024-10-22 | AMRIZE — high-priority violation on file | HAGERSTOWN, Washington, MD | Pass | State |
| 2024-10-22 | AMERICAN CRYSTAL SUGAR - MOORHEAD — high-priority violation on file | MOORHEAD, Clay, MN | Pass | State |
| 2024-10-22 | AL-CORN CLEAN FUEL LLC | CLAREMONT, Dodge, MN | Fail | State |
| 2024-10-22 | TARHEEL PAVING & ASPHALT COMPANY | HENDERSONVILLE, Henderson, NC | Pass | State |
| 2024-10-22 | OPPD SARPY COUNTY STATION | BELLEVUE, Sarpy, NE | N/A | State |
| 2024-10-22 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2024-10-22 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2024-10-22 | TIGER BOOSTER STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-10-22 | VICTORY COMPRESSOR STATION | LA HUERTA, Eddy, NM | Pass | State |
| 2024-10-22 | CAVERN COMPRESSOR STATION | WHITES CITY, Eddy, NM | Pass | State |
| 2024-10-22 | SNEAKY SNAKE 24 CTB 1 | MALAGA, Lea, NM | Pass | State |
| 2024-10-22 | PONY EXPRESS FED WEST TB | MONUMENT, Lea, NM | Pass | State |
| 2024-10-22 | TENNESSEE GAS PIPELINE CO - COMP STA 241 | LAFAYETTE, Onondaga, NY | Pass | State |
| 2024-10-22 | ANHEUSER BUSCH BALDWINSVILLE BREWERY | BALDWINSVILLE, Onondaga, NY | Pass | State |
| 2024-10-22 | FORD MOTOR COMPANY - OHIO ASSEMBLY PLANT — high-priority violation on file | AVON LAKE, Lorain, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | JOHNS MANVILLE / PLANT #01 - WTV1 | WATERVILLE, Lucas, OH | Pass | State |
| 2024-10-22 | PENGG WMC LLC | BEDFORD HEIGHTS, Cuyahoga, OH | Pass | State |
| 2024-10-22 | PENGG WMC LLC | BEDFORD HEIGHTS, Cuyahoga, OH | Pass | State |
| 2024-10-22 | PENGG WMC LLC | BEDFORD HEIGHTS, Cuyahoga, OH | Pass | State |
| 2024-10-22 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-10-22 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-10-22 | MIDDLETOWN COKE COMPANY, LLC — high-priority violation on file | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-10-22 | VALIDUS ENERGY II MIDCON LLC / LUDWIG 2 22 15XH 3 22 15XH 4 22 15XH | WATONGA, Blaine, OK | Pass | State |
| 2024-10-22 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2024-10-22 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2024-10-22 | IRON HORSE MIDSTREAM LLC / BUFFALO COMPRESSOR STATION | AMBER, Grady, OK | Pass | State |
| 2024-10-22 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2024-10-22 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
| 2024-10-22 | CONTINENTAL RESOURCES / GALVIN 3 22 15XHW | ALEX, Grady, OK | Pass | State |
| 2024-10-22 | CONTINENTAL RESOURCES / GALVIN 5 27 22 15XHW GALVIN 6 27 22 15 | ALEX, Grady, OK | Pass | State |
| 2024-10-22 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | LAMAR, Hughes, OK | Pass | State |
| 2024-10-22 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | LAMAR, Hughes, OK | Pass | State |
| 2024-10-22 | ERIE SEWER AUTHORITY/ERIE WWTP — high-priority violation on file | ERIE, Erie, PA | Pending | State |
| 2024-10-22 | PEOPLES NATURAL GAS/EGRY STA | CLARKSBURG, Indiana, PA | Pass | State |
| 2024-10-22 | MAINESBURG GS LP/MAINESBURG GATHERING STA | MANSFIELD, Tioga, PA | Fail | State |
| 2024-10-22 | WILLIAMS FIELD SVC CO LLC/JONES COMP STA | FRIENDSVILLE, Susquehanna, PA | Pass | State |
| 2024-10-22 | NFG MIDSTREAM CLERMONT LLC/CLERMONT EAST COMP STA | WILCOX, McKean, PA | Pass | State |
| 2024-10-22 | CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA | WIND RIDGE, Greene, PA | Pass | State |
| 2024-10-22 | EXPAND OPERATING LLC/FERRARO WELL PAD | NEW ALBANY, Bradford, PA | Pass | State |
| 2024-10-22 | ALLNEX USA INC NORTH AUGUSTA FACILITY | NORTH AUGUSTA, Aiken, SC | Pass | State |
| 2024-10-22 | MARINE CORPS RECRUIT DEPOT (MCRD) PARRIS ISLAND | PARRIS ISLAND, Beaufort, SC | Pass | State |
| 2024-10-22 | HM SOUTHEAST CEMENT LLC | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2024-10-22 | AMRIZE CEMENT INC. - HOLLY HILL PLANT | HOLLY HILL, Orangeburg, SC | Pass | State |
| 2024-10-22 | MUELLER CO. LLC — high-priority violation on file | CHATTANOOGA, Hamilton, TN | Pass | Local |
| 2024-10-22 | PACIFICORP LAKESIDE (SUMMIT VINEYARD) | VINEYARD, Utah, UT | Pass | State |
| 2024-10-22 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-10-22 | WI PUBLIC SERVICE WESTON POWER PLANT | KRONENWETTER, Marathon, WI | Pass | State |
| 2024-10-22 | WPL - RIVERSIDE ENERGY CENTER | BELOIT, Rusk, WI | Pass | State |
| 2024-10-22 | COLUMBIA GAS TRANSMISSION, LLC, FILES CREEK | BEVERLY, Randolph, WV | Pass | State |
| 2024-10-21 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2024-10-21 | DESOTO GATHEIRNG COMPANY, LLC - GRAVEL HILL CPF-2 | CLEVELAND (HISTORICAL), TOWNSHIP OF, Van Buren, AR | Pass | State |
| 2024-10-21 | DESOTO GATHERING COMPANY, LLC - GRAVEL HILL CPF-4 | SCOTLAND, Van Buren, AR | Pass | State |
| 2024-10-21 | RAZORBACK GATHERING COMPANY, LLC. - ROSE BUD COMPRESSOR STATION | SEARCY, White, AR | Pass | State |
| 2024-10-21 | RAZORBACK GATHERING COMPANY, LLC. - ROSE BUD COMPRESSOR STATION | SEARCY, White, AR | Pass | State |
| 2024-10-21 | APAC CENTRAL, INC. - SHARPS ASPHALT PLANT | SPRINGDALE, Benton, AR | Pass | State |
| 2024-10-21 | PLAINS END, LLC | ARVADA, Jefferson, CO | Pass | State |
| 2024-10-21 | DCP OPERATING CO - ROGGEN NGPP — high-priority violation on file | KEENESBURG 4.4 MI. E OF, Weld, CO | Fail | State |
| 2024-10-21 | BONANZA CREEK - ANTELOPE CPF 13-21 | KERSEY 10.4 MI. E OF, Weld, CO | Fail | State |
| 2024-10-21 | ATLAS FOUNDRY COMPANY INC | MARION, Grant, IN | Pass | State |
| 2024-10-21 | AMERICAN CRYSTAL SUGAR - MOORHEAD — high-priority violation on file | MOORHEAD, Clay, MN | Pass | State |
| 2024-10-21 | ABBOTT NORTHWESTERN HOSPITAL | MINNEAPOLIS, Hennepin, MN | N/A | State |
| 2024-10-21 | JBS WORTHINGTON MN | WORTHINGTON, Nobles, MN | Pass | State |
| 2024-10-21 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2024-10-21 | LONGWOOD - STEBBINS COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-10-21 | LONGWOOD - STEBBINS COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2024-10-21 | PIRATE STATE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-10-21 | GATO GRANDE 16 CTB 1 | MALAGA, Lea, NM | Pass | State |
| 2024-10-21 | GATO GRANDE 16 CTB 1 | MALAGA, Lea, NM | Pass | State |
| 2024-10-21 | CAESARS ENTERTAINMENT INCORPORATED - CAESARS CONSOLIDATED PROPERTIES | LAS VEGAS, Clark, NV | Pass | Local |
| 2024-10-21 | CONTINENTAL RESOURCES / BETTY JEAN 1 8 5XH | CHICKASHA, Grady, OK | Pass | State |
| 2024-10-21 | CONTINENTAL RESOURCES / GALVIN 1 22 27XH | ALEX, Grady, OK | Pass | State |
| 2024-10-21 | IRON HORSE MIDSTREAM LLC / IRON HORSE PROCESSING PLANT | AMBER, Grady, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.