EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-10-06 | ALIGNED ENERGY DATA CENTERS (ASHBURN), LLC | ASHBURN, Loudoun, VA | Pass | State |
| 2023-10-06 | DIGITAL WESTERN LANDS LLC | STERLING, Loudoun, VA | Pass | State |
| 2023-10-06 | SIERRA PACIFIC IND.- SKAGIT LUMBER | MOUNT VERNON, Skagit, WA | Pass | Local |
| 2023-10-06 | SIERRA PACIFIC IND.- SKAGIT LUMBER | MOUNT VERNON, Skagit, WA | Pass | Local |
| 2023-10-06 | EVONIK CORP | JANESVILLE, Rusk, WI | Pass | State |
| 2023-10-06 | COLONY PLANT (BENTONITE PERFORMANCE MINERALS) | COLONY, Crook, WY | Pass | State |
| 2023-10-06 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-06 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-06 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-06 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-06 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-06 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-05 | CMBIOMASS — high-priority violation on file | JACKSON, Clarke, AL | Pass | State |
| 2023-10-05 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2023-10-05 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Pass | State |
| 2023-10-05 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Pass | State |
| 2023-10-05 | ALUCHEM OF LITTLE ROCK, LLC | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2023-10-05 | SACRAMENTO AREA SEWER DISTRICT | ELK GROVE, Sacramento, CA | Pass | Local |
| 2023-10-05 | CEDARS SINAI MEDICAL CTR | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2023-10-05 | CEDARS SINAI MEDICAL CTR | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2023-10-05 | CEDARS SINAI MEDICAL CTR | LOS ANGELES, Los Angeles, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-10-05 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | CALIFORNIA RESOURCES PRODUCTION CORP | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-05 | KRAFT HEINZ FOODS CO | TULARE, Tulare, CA | Pass | Local |
| 2023-10-05 | KRAFT HEINZ FOODS CO | TULARE, Tulare, CA | Pass | Local |
| 2023-10-05 | KRAFT HEINZ FOODS CO | TULARE, Tulare, CA | Pass | Local |
| 2023-10-05 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2023-10-05 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2023-10-05 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2023-10-05 | KM PHOENIX HOLDINGS-DORAVILLE TERMINAL | DORAVILLE, DeKalb, GA | Pass | State |
| 2023-10-05 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2023-10-05 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-10-05 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2023-10-05 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2023-10-05 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2023-10-05 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2023-10-05 | EAST KY POWER COOP - BAVARIAN LGTE | WALTON, Boone, KY | Pass | State |
| 2023-10-05 | EAGLE VALLEY LANDFILL | LAKE ORION, Oakland, MI | Pass | State |
| 2023-10-05 | GREDE LLC - SAINT CLOUD | SAINT CLOUD, Benton, MN | Pass | State |
| 2023-10-05 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2023-10-05 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | N/A | State |
| 2023-10-05 | MISSISSIPPI LIME COMPANY | SAINTE GENEVIEVE, Ste. Genevieve, MO | N/A | State |
| 2023-10-05 | GCF US HOLDINGS, LLC - COLUMBUS MILL — high-priority violation on file | COLUMBUS, Lowndes, MS | Pass | State |
| 2023-10-05 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.