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 |
|---|---|---|---|---|
| 2024-10-29 | NUCOR STEEL DECATUR LLC | TRINITY, Morgan, AL | Pass | State |
| 2024-10-29 | NUCOR STEEL DECATUR LLC | TRINITY, Morgan, AL | Pass | State |
| 2024-10-29 | ENABLE MISSISSIPPI RIVER TRANSMISSION, LLC - FOUNTAIN HILL COMPRESSOR STATION | HAMBURG, Ashley, AR | Pass | State |
| 2024-10-29 | PLUM POINT SERVICES COMPANY, LLC - PLUM POINT ENERGY STATION | OSCEOLA, Mississippi, AR | Pass | State |
| 2024-10-29 | DRAKE CEMENT- DRAKE ROAD SITE — high-priority violation on file | PAULDEN, Yavapai, AZ | Pass | State |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | EQUILON ENTERPRISES LLC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2024-10-29 | HARTFORD WATER POLLUTION CONTROL FACILITY — high-priority violation on file | HARTFORD, Hartford, CT | Pass | State |
| 2024-10-29 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2024-10-29 | COLORS & EFFECTS USA LLC - NEWPORT | WILMINGTON, New Castle, DE | Pass | State |
| 2024-10-29 | COLORS & EFFECTS USA LLC - NEWPORT | WILMINGTON, New Castle, DE | Pass | State |
| 2024-10-29 | COLORS & EFFECTS USA LLC - NEWPORT | WILMINGTON, New Castle, DE | N/A | State |
| 2024-10-29 | COLORS & EFFECTS USA LLC - NEWPORT | WILMINGTON, New Castle, DE | Pass | State |
| 2024-10-29 | COLORS & EFFECTS USA LLC - NEWPORT | WILMINGTON, New Castle, DE | N/A | State |
| 2024-10-29 | COLORS & EFFECTS USA LLC - NEWPORT | WILMINGTON, New Castle, DE | Pass | State |
| 2024-10-29 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2024-10-29 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2024-10-29 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2024-10-29 | ORLANDO UTILITIES COMMISSION | ORLANDO, Orange, FL | Pass | State |
| 2024-10-29 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2024-10-29 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2024-10-29 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2024-10-29 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2024-10-29 | GEORGIA-PACIFIC PALATKA LLC — high-priority violation on file | PALATKA, Putnam, FL | Pass | State |
| 2024-10-29 | PREFERRED MATERIALS, INC. | WINTER HAVEN, Polk, FL | Pass | State |
| 2024-10-29 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2024-10-29 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2024-10-29 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2024-10-29 | LX HAUSYS AMERICA, INC. — high-priority violation on file | ADAIRSVILLE, Gordon, GA | Pass | State |
| 2024-10-29 | DIXIELAND EQUIPMENT SALES DBA DIXIELAND PALLET COMPANY — high-priority violation on file | TALMO, Jackson, GA | Pass | State |
| 2024-10-29 | PICO ENERGY LLC | JEROME, Jerome, ID | Pass | State |
| 2024-10-29 | GOOD SAMARITAN HOSPITAL | DOWNERS GROVE, DuPage, IL | Pass | State |
| 2024-10-29 | GOOD SAMARITAN HOSPITAL | DOWNERS GROVE, DuPage, IL | Pass | State |
| 2024-10-29 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2024-10-29 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2024-10-29 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2024-10-29 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2024-10-29 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2024-10-29 | HARCROS CHEMICALS - KANSAS CITY (AIR) | KANSAS CITY, Wyandotte, KS | Pass | State |
| 2024-10-29 | SAFRAN LANDING SYSTEMS KENTUCKY LLC | WALTON, Boone, KY | Fail | State |
| 2024-10-29 | SUMMERS 8&29-17-14 HC #1 #2-ALT #3-ALT & #4-ALT TANK BATTERY - SHREVEPORT FIELD | GREENWOOD, Caddo, LA | Pass | State |
| 2024-10-29 | SUMMERS 8&29-17-14 HC #1 #2-ALT #3-ALT & #4-ALT TANK BATTERY - SHREVEPORT FIELD | GREENWOOD, Caddo, LA | Pass | State |
| 2024-10-29 | SUMMERS 8&29-17-14 HC #1 #2-ALT #3-ALT & #4-ALT TANK BATTERY - SHREVEPORT FIELD | GREENWOOD, Caddo, LA | Pass | State |
| 2024-10-29 | MILLERSVILLE LANDFILL | SEVERN, Anne Arundel, MD | Pass | State |
| 2024-10-29 | UNIVERSITY OF MARYLAND ST. JOSEPH MEDICAL CENTER | TOWSON, Baltimore, MD | Pass | State |
| 2024-10-29 | VIKING GAS TRANSMISSION CO - FRAZEE COMPRESSOR STATION | FRAZEE, Otter Tail, MN | Pass | State |
| 2024-10-29 | AMERICAN CRYSTAL SUGAR - EAST GRAND FORKS | EAST GRAND FORKS, Polk, MN | Pass | State |
| 2024-10-29 | SYENSQO DBA CYTEC ENGINEERED MATERIALS LNC | WINONA, Winona, MN | Pass | State |
| 2024-10-29 | CAPITAL QUARRIES (PORT-0462) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-10-29 | CAROLINA TREE AND LANDSCAPING | SUPPLY, Brunswick, NC | Pass | State |
| 2024-10-29 | CORNING INCORPORATED - MIDLAND | MIDLAND, Cabarrus, NC | Pass | State |
| 2024-10-29 | NASHUA, CITY OF - WASTEWATER TREATMENT FACILITY | NASHUA, Hillsborough, NH | Fail | State |
| 2024-10-29 | NASHUA, CITY OF - WASTEWATER TREATMENT FACILITY | NASHUA, Hillsborough, NH | Fail | State |
| 2024-10-29 | LITTLE GIANTS 20 19 BATTERY | CARLSBAD, Eddy, NM | Pass | State |
| 2024-10-29 | TATER TOT 2 CTB 5 | MALAGA, Eddy, NM | Pass | State |
| 2024-10-29 | FORT CHURCHILL GENERATING STATION | YERINGTON, Lyon, NV | Pass | State |
| 2024-10-29 | SAINT GOBAIN PERFORMANCE PLASTICS | HOOSICK FALLS, Rensselaer, NY | Pass | State |
| 2024-10-29 | CORNING COMPRESSOR STATION | CORNING(T), Steuben, NY | Pass | State |
| 2024-10-29 | CRAWFORD COMPRESSOR STATION | LANCASTER, Fairfield, OH | Pass | State |
| 2024-10-29 | CRAWFORD COMPRESSOR STATION | LANCASTER, Fairfield, OH | Pass | State |
| 2024-10-29 | CRAWFORD COMPRESSOR STATION | LANCASTER, Fairfield, OH | Pass | State |
| 2024-10-29 | CRAWFORD COMPRESSOR STATION | LANCASTER, Fairfield, OH | Pass | State |
| 2024-10-29 | ONEOK FIELD SERVICES CO LLC / EAST PUTNAM COMPRESSOR STATION | PUTNAM, Dewey, OK | Pass | State |
| 2024-10-29 | ONEOK FIELD SERVICES CO LLC / EAST PUTNAM COMPRESSOR STATION | PUTNAM, Dewey, OK | Pass | State |
| 2024-10-29 | CONTINENTAL RESOURCES / HINES LANG OMER SPRINGBOARD 2 CDP SPRI | PURDY, Garvin, OK | Pass | State |
| 2024-10-29 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-29 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-29 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-10-29 | CONTINENTAL RESOURCES / JACKPOT 1 32H | RUSH SPRINGS, Grady, OK | Pass | State |
| 2024-10-29 | ET GATHERING PROCESSING LLC / UNION COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2024-10-29 | ET GATHERING PROCESSING LLC / UNION COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2024-10-29 | ET GATHERING PROCESSING LLC / UNION COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2024-10-29 | ET GATHERING PROCESSING LLC / UNION COMPRESSOR STATION | TABLER, Grady, OK | Pass | State |
| 2024-10-29 | ET GATHERING PROCESSING LLC / CANUTE COMPRESSOR STATION | BURNS FLAT, Washita, OK | Pass | State |
| 2024-10-29 | REGENCY MARCELLUS GAS GATHERING LLC/LONE WALNUT COMP STA | JERSEY SHORE, Lycoming, PA | Pass | State |
| 2024-10-29 | EXPAND OPERATING LLC/MARIS SUS PAD | MESHOPPEN, Susquehanna, PA | Pass | State |
| 2024-10-29 | PROVIDENCE COLLEGE — high-priority violation on file | PROVIDENCE, Providence, RI | Pass | State |
| 2024-10-29 | HM SOUTHEAST CEMENT LLC | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2024-10-29 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2024-10-29 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2024-10-29 | COPE STATION | COPE, Orangeburg, SC | Pass | State |
| 2024-10-29 | COPE STATION | COPE, Orangeburg, SC | Pass | State |
| 2024-10-29 | ABERDEEN ENERGY, LLC — high-priority violation on file | MINA, Edmunds, SD | Pass | State |
| 2024-10-29 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-10-29 | HARDEL MUTUAL PLYWOOD CORPORATION — high-priority violation on file | CHEHALIS, Lewis, WA | Fail | Local |
| 2024-10-29 | ANR PIPELINE CO - KEWASKUM COMPRESSOR ST | ADELL, Taylor, WI | Pass | State |
| 2024-10-28 | SKC, INC. — high-priority violation on file | COVINGTON, Newton, GA | Pass | State |
| 2024-10-28 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2024-10-28 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2024-10-28 | RIVER ROCK OPERATING - GRAYBILL STATION (DEHY)(AIR) | MOUND VALLEY, Labette, KS | Pass | State |
| 2024-10-28 | SAFRAN LANDING SYSTEMS KENTUCKY LLC | WALTON, Boone, KY | Pass | State |
| 2024-10-28 | DAKOTA AGGREGATES - UMORE PARK FACILITY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2024-10-28 | GREEN PLAINS CENTRAL CITY LLC — high-priority violation on file | CENTRAL CITY, Merrick, NE | Pass | State |
| 2024-10-28 | GREEN PLAINS YORK LLC — high-priority violation on file | YORK, York, NE | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.