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 |
|---|---|---|---|---|
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | ELK HILLS POWER LLC | TUPMAN, Kern, CA | Pass | Local |
| 2023-10-31 | GILLIBRAND INDUSTRIAL SANDS, LLC | SIMI VALLEY, Ventura, CA | Pass | Local |
| 2023-10-31 | COLORADO INTERSTATE GAS CO - LATIGO C.S. | DEER TRAIL 6.4 MI. W OF, Arapahoe, CO | Pass | State |
| 2023-10-31 | COLORADO INTERSTATE GAS CO - LATIGO C.S. | DEER TRAIL 6.4 MI. W OF, Arapahoe, CO | Pass | State |
| 2023-10-31 | GRAND RIVER GATHERING - HUNTER MESA CS | RIFLE 3.3 MI. SE OF, Garfield, CO | Pass | State |
| 2023-10-31 | BONANZA CREEK - ANTELOPE CPF 13-21 | KERSEY 10.4 MI. E OF, Weld, CO | Fail | State |
| 2023-10-31 | BONANZA CREEK - ANTELOPE CPF 13-21 | KERSEY 10.4 MI. E OF, Weld, CO | Pass | State |
| 2023-10-31 | BONANZA CREEK - ANTELOPE CPF 13-21 | KERSEY 10.4 MI. E OF, Weld, CO | Fail | State |
| 2023-10-31 | PDC ENERGY - BOST FARM 5-7 PAD | GREELEY, Weld, CO | Fail | State |
| 2023-10-31 | PDC ENERGY - BOST FARM 5-7 PAD | GREELEY, Weld, CO | Fail | State |
| 2023-10-31 | FLORIDA POWER & LIGHT COMPANY (PCC) | COCOA, Brevard, FL | Pass | State |
| 2023-10-31 | FLORIDA GAS TRANSMISSION COMPANY, LLC | PLANT CITY, Hillsborough, FL | Pass | State |
| 2023-10-31 | DUKE ENERGY FLORIDA, LLC | LIVE OAK, Suwannee, FL | Pass | State |
| 2023-10-31 | DUKE ENERGY FLORIDA, LLC | LIVE OAK, Suwannee, FL | Pass | State |
| 2023-10-31 | DUKE ENERGY FLORIDA, LLC | LIVE OAK, Suwannee, FL | Pass | State |
| 2023-10-31 | DUKE ENERGY FLORIDA, LLC | LIVE OAK, Suwannee, FL | Pass | State |
| 2023-10-31 | GEORGIA-PACIFIC GYPSUM LLC - SAVANNAH PLANT | SAVANNAH, Chatham, GA | Pass | State |
| 2023-10-31 | BD MADISON | MADISON, Morgan, GA | Pass | State |
| 2023-10-31 | ZIONSVILLE TERMINAL BUCKEYE TERMINALS LLC | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-10-31 | TEMPLE AND TEMPLE EXCAVATING AND PAVING INCORPORATED | SALEM, Washington, IN | Pass | State |
| 2023-10-31 | TEMPLE AND TEMPLE EXCAVATING AND PAVING INCORPORATED | SALEM, Washington, IN | Pass | State |
| 2023-10-31 | TEMPLE AND TEMPLE EXCAVATING AND PAVING INCORPORATED | SALEM, Washington, IN | Pass | State |
| 2023-10-31 | TEMPLE AND TEMPLE EXCAVATING AND PAVING INCORPORATED | SALEM, Washington, IN | Pass | State |
| 2023-10-31 | VYBOND SPECIALTY ADHESIVES LLC | FRANKLIN, Simpson, KY | Pass | State |
| 2023-10-31 | U.S. COAST GUARD YARD - CURTIS BAY | CURTIS BAY, Anne Arundel, MD | Pass | State |
| 2023-10-31 | NORTHEAST PACKAGING CO. | PRESQUE ISLE, Aroostook, ME | Pass | State |
| 2023-10-31 | MICHIGAN SUGAR COMPANY - BAY CITY — high-priority violation on file | BAY CITY, Bay, MI | Pass | State |
| 2023-10-31 | CARMEUSE LIME INC, RIVER ROUGE OPERATION — high-priority violation on file | RIVER ROUGE, Wayne, MI | Pass | State |
| 2023-10-31 | UNIVERSITY OF MICHIGAN | ANN ARBOR, Washtenaw, MI | Pending | State |
| 2023-10-31 | UNIVERSITY OF MICHIGAN | ANN ARBOR, Washtenaw, MI | Pass | State |
| 2023-10-31 | CITIZENS DISPOSAL, INC. | GRAND BLANC, Genesee, MI | Pass | State |
| 2023-10-31 | INDUSTRIAL FINISHING SERVICES INC - PERHAM | PERHAM, Otter Tail, MN | Pass | State |
| 2023-10-31 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pass | State |
| 2023-10-31 | NORTH STONE | MARYLAND HEIGHTS, St. Louis, MO | Pass | State |
| 2023-10-31 | NORTH STONE | MARYLAND HEIGHTS, St. Louis, MO | Pass | State |
| 2023-10-31 | NORTH STONE | MARYLAND HEIGHTS, St. Louis, MO | Pass | State |
| 2023-10-31 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-31 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-31 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-31 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-31 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-31 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-31 | LEAF RIVER CELLULOSE LLC — high-priority violation on file | NEW AUGUSTA, Perry, MS | Pass | State |
| 2023-10-31 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.