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 |
|---|---|---|---|---|
| 2023-09-14 | RINER STATION (SOUTHERN STAR CENTRAL GAS PIPELINE) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-09-14 | RINER STATION (SOUTHERN STAR CENTRAL GAS PIPELINE) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-09-14 | PAINTER COMPRESSOR STATION (KERN RIVER GAS TRANSMISSION) | EVANSTON, Uinta, WY | Pass | State |
| 2023-09-14 | PAINTER COMPRESSOR STATION (KERN RIVER GAS TRANSMISSION) | EVANSTON, Uinta, WY | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Fail | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | UNIVERSITY OF ALASKA / UNIVERSITY OF ALASKA FAIRBANKS CAMPUS — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2023-09-13 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Fail | State |
| 2023-09-13 | LHOIST NORTH AMERICA OF ALABAMA, LLC | CALERA, Shelby, AL | Fail | State |
| 2023-09-13 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2023-09-13 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2023-09-13 | MAGELLAN PIPELINE COMPANY, LP - NLR - NORTH TERMINAL | NORTH LITTLE ROCK, Pulaski, AR | Pass | State |
| 2023-09-13 | INTERNATIONAL PAPER CO | ANAHEIM, Orange, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA INC | COALINGA, Fresno, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA INC | COALINGA, Fresno, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA INC | COALINGA, Fresno, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA INC | COALINGA, Fresno, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-13 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | LYONS AREA, Boulder, CO | Pass | State |
| 2023-09-13 | BARNARD CONST - CHIMNEY HOLLOW RESERVOIR | LOVELAND AREA, Larimer, CO | Fail | State |
| 2023-09-13 | DCP OPERATING CO - GREELEY NATURAL GAS P | EVANS AREA, Weld, CO | Pass | State |
| 2023-09-13 | DUNAMIS ENERGY - ORCA COMPRESSOR STATION | SEVERANCE 3.3 MI. N OF, Weld, CO | Pass | State |
| 2023-09-13 | DUNAMIS ENERGY - COLORADO RIVERS WELLPAD | SEVERANCE 2.4 MI. N OF, Weld, CO | Pass | State |
| 2023-09-13 | WALLINGFORD ENERGY, LLC | WALLINGFORD, New Haven, CT | Pass | State |
| 2023-09-13 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-09-13 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-09-13 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-09-13 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2023-09-13 | AIR LIQUIDE ADVANCED SEPARATIONS, NEWPORT PLANT | NEWPORT, New Castle, DE | Pass | State |
| 2023-09-13 | FLORIDA POWER & LIGHT COMPANY | PENSACOLA, Escambia, FL | Pass | State |
| 2023-09-13 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2023-09-13 | LAKELAND ELECTRIC | LAKELAND, Polk, FL | Pass | State |
| 2023-09-13 | LAKELAND ELECTRIC | LAKELAND, Polk, FL | Pass | State |
| 2023-09-13 | BUILDING MATERIALS MANUFACTURING LLC | SAVANNAH, Chatham, GA | Pass | State |
| 2023-09-13 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2023-09-13 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2023-09-13 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Fail | State |
| 2023-09-13 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Fail | State |
| 2023-09-13 | CITY OF SHENANDOAH-SHENANDOAH SANITATION — high-priority violation on file | SHENANDOAH, Page, IA | Pass | State |
| 2023-09-13 | PLYMOUTH ENERGY LLC | MERRILL, Plymouth, IA | Pass | State |
| 2023-09-13 | CLEARWATER PAPER CORP-PPD | LEWISTON, Nez Perce, ID | Pass | State |
| 2023-09-13 | STATE HIGHWAY CONSTRUCTION | ELWIN, Macon, IL | Pass | State |
| 2023-09-13 | STATE HIGHWAY CONSTRUCTION | ELWIN, Macon, IL | Pass | State |
| 2023-09-13 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2023-09-13 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2023-09-13 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MITCHELL, Lawrence, IN | Pass | State |
| 2023-09-13 | AGC FLAT GLASS N AMERICA INC — high-priority violation on file | RICHMOND, Madison, KY | Pass | State |
| 2023-09-13 | METTIKI COAL, LLC | OAKLAND, Garrett, MD | Pass | State |
| 2023-09-13 | LIGNETICS OF MAINE, LLC | STRONG, Franklin, ME | Pass | State |
| 2023-09-13 | CLARIOS, LLC | SAINT JOSEPH, Buchanan, MO | Pass | State |
| 2023-09-13 | THOMAS HILL ENERGY CENTER - POWER DIVISION | CLIFTON HILL, Randolph, MO | Pass | State |
| 2023-09-13 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2023-09-13 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2023-09-13 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2023-09-13 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | N/A | State |
| 2023-09-13 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | SEMINARY, Covington, MS | Pass | State |
| 2023-09-13 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | SEMINARY, Covington, MS | Pass | State |
| 2023-09-13 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | SEMINARY, Covington, MS | Pass | State |
| 2023-09-13 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | SEMINARY, Covington, MS | Pass | State |
| 2023-09-13 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | SEMINARY, Covington, MS | Pass | State |
| 2023-09-13 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | SEMINARY, Covington, MS | Pass | State |
| 2023-09-13 | TRANSCONTINENTAL GAS PIPE LINE COMPANY LLC, STATION 77 | SEMINARY, Covington, MS | Pass | State |
| 2023-09-13 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-13 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-13 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-13 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-09-13 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.