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 |
|---|---|---|---|---|
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | MAGRETECH, LLC | BELLEVUE, Huron, OH | Pass | State |
| 2023-10-13 | ASCENT RESOURCES - DOMINO CDZ HR | CADIZ, Harrison, OH | Pass | State |
| 2023-10-13 | ASCENT RESOURCES - DOMINO CDZ HR | CADIZ, Harrison, OH | Pass | State |
| 2023-10-13 | ASCENT RESOURCES - DOMINO CDZ HR | CADIZ, Harrison, OH | Pass | State |
| 2023-10-13 | MUELLER CO. LLC — high-priority violation on file | CHATTANOOGA, Hamilton, TN | Pass | Local |
| 2023-10-13 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2023-10-13 | AMAZON DATA SERVICES (IAD-130, IAD-131, IAD-313, AND DCA-072) | MANASSAS, Prince William, VA | Pass | State |
| 2023-10-13 | SDS LUMBER CO | BINGEN, Klickitat, WA | Pass | State |
| 2023-10-13 | LANXESS CORPORATION — high-priority violation on file | KALAMA, Cowlitz, WA | Pass | Local |
| 2023-10-13 | DIVERSIFIED MIDSTREAM LLC, BROWNING FORK STATION | GILBERT, Logan, WV | Pass | State |
| 2023-10-12 | US AIR FORCE (EIELSON) / EIELSON AIR FORCE BASE — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-10-12 | DOYON UTILITIES, LLC / FORT WAINWRIGHT (PRIVATIZED EMISSION UN | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-10-12 | HILCORP ENERGY COMPANY | CREOLA, Mobile, AL | Pass | State |
| 2023-10-12 | HILCORP ENERGY COMPANY | CREOLA, Mobile, AL | Pass | State |
| 2023-10-12 | INDORAMA VENTURES XYLENES & PTA LLC | DECATUR, Morgan, AL | Pass | State |
| 2023-10-12 | CITY OF JONESBORO - YARD WASTE | JONESBORO, Craighead, AR | Pass | State |
| 2023-10-12 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2023-10-12 | RAZORBACK GATHERING COMPANY, LLC. - TWIN GROVES CPF 1 | GREENBRIER, Faulkner, AR | Pass | State |
| 2023-10-12 | MERIT ENERGY COMPANY, LLC - MCMILLIAN CP | CLARKSVILLE, Johnson, AR | Pass | State |
| 2023-10-12 | DESOTO GATHERING COMPANY LLC. - SOUTHWEST GREER LAKE CPF-3 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2023-10-12 | DESOTO GATHERING COMPANY, LLC - SOUTHWEST GREER LAKE CPF-5 | CLINTON, Van Buren, AR | Pass | State |
| 2023-10-12 | EHRENBERG COMPRESSOR STATION | EHRENBERG, La Paz, AZ | Pass | State |
| 2023-10-12 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | MOSS LANDING, Monterey, CA | Pass | Local |
| 2023-10-12 | AERA ENERGY LLC | SAN ARDO, Monterey, CA | Pass | Local |
| 2023-10-12 | SPI - LINCOLN — high-priority violation on file | LINCOLN, Placer, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-12 | PDC ENERGY - LINCOLN STATE 3-18 PAD | SEVERANCE AREA, Weld, CO | Pass | State |
| 2023-10-12 | BONANZA - LATHAM 11-13 PROD FACILITY | KERSEY 8.5 MI. N OF, Weld, CO | Pass | State |
| 2023-10-12 | SHURTAPE SPECIALTY COATING | NEW HARTFORD, Litchfield, CT | Pass | State |
| 2023-10-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2023-10-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2023-10-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2023-10-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2023-10-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2023-10-12 | WASTE CONNECTIONS OF OSCEOLA COUNTY, LLC | SAINT CLOUD, Osceola, FL | Pass | State |
| 2023-10-12 | NOVELIS, INC. | GREENSBORO, Greene, GA | Pass | State |
| 2023-10-12 | VALERO RENEWABLE FUELS CO LLC-FT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2023-10-12 | VALERO RENEWABLE FUELS CO LLC-FT DODGE | FORT DODGE, Webster, IA | Pass | State |
| 2023-10-12 | MTBT - OTTUMWA | OTTUMWA, Wapello, IA | Pass | State |
| 2023-10-12 | LEE COUNTY LANDFILL | DIXON, Lee, IL | Pass | State |
| 2023-10-12 | MILAM RECYCLING AND DISPOSAL FACILITY | FAIRMONT CITY, St. Clair, IL | Pass | State |
| 2023-10-12 | STEPAN CO | ELWOOD, Will, IL | Pass | State |
| 2023-10-12 | SIGECO - FB CULLEY GENERATING STATION | NEWBURGH, Warrick, IN | Pass | State |
| 2023-10-12 | CHANDLER A #1 | RUSTON, Lincoln, LA | Pass | State |
| 2023-10-12 | CROCKER 29 #1 | SHONGALOO, Webster, LA | Pass | State |
| 2023-10-12 | LIFOAM INDUSTRIES, LLC | BELCAMP, Harford, MD | Pass | State |
| 2023-10-12 | FCA US LLC - DETROIT ASSEMBLY COMPLEX — high-priority violation on file | DETROIT, Wayne, MI | Pending | State |
| 2023-10-12 | COLUMBIA SOUTHERN STAR CENTRAL | COLUMBIA, Boone, MO | Pass | State |
| 2023-10-12 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2023-10-12 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2023-10-12 | BAXTER HEALTHCARE CORPORATION | MARION, McDowell, NC | Pending | State |
| 2023-10-12 | PROAMPAC AC US LLC | MATTHEWS, Mecklenburg, NC | Pass | Local |
| 2023-10-12 | HILAND PARTNERS HOLDINGS LLC - EDGEWATER COMPRESSOR STATION | WILLISTON, Mountrail, ND | N/A | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.