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 |
|---|---|---|---|---|
| 2023-10-17 | MINNESOTA METHANE SAN DIEGO LLC | SAN DIEGO, San Diego, CA | Pass | Local |
| 2023-10-17 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-17 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-17 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-17 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-17 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2023-10-17 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2023-10-17 | FOSTER FOOD PRODUCTS — high-priority violation on file | LIVINGSTON, Merced, CA | Pass | Local |
| 2023-10-17 | UNIV OF COLO BOULDER - CAMPUS — high-priority violation on file | BOULDER, Boulder, CO | N/A | State |
| 2023-10-17 | COVALENCE DJ, LLC - BIGFOOT 11 | KERSEY AREA, Weld, CO | Fail | State |
| 2023-10-17 | NAUGATUCK WPCA/POTW | NAUGATUCK (HISTORICAL), New Haven, CT | Pass | State |
| 2023-10-17 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-17 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-10-17 | ORLANDO UTILITIES COMMISSION | ORLANDO, Orange, FL | Pass | State |
| 2023-10-17 | SEMINOLE ELECTRIC COOPERATIVE, INC. | PALATKA, Putnam, FL | Pass | State |
| 2023-10-17 | GRAPHIC PACKAGING INTERNATIONAL, LLC - MACON MILL | MACON, Bibb, GA | Pass | State |
| 2023-10-17 | KRATON CHEMICAL, LLC | SAVANNAH, Chatham, GA | Pass | State |
| 2023-10-17 | KRATON CHEMICAL, LLC | SAVANNAH, Chatham, GA | Pass | State |
| 2023-10-17 | TYSON POULTRY, INC. RIVER VALLEY INGREDIENTS CUMMING DIVISION | CUMMING, Forsyth, GA | Pass | State |
| 2023-10-17 | BLOUNT CONSTRUCTION CO. | CUMMING, Forsyth, GA | Pass | State |
| 2023-10-17 | BLOUNT CONSTRUCTION CO. | CUMMING, Forsyth, GA | Pass | State |
| 2023-10-17 | TOM LOWE ATLANTA-FULTON COUNTY WATER TREATMENT FACILITY | ALPHARETTA, Fulton, GA | Pass | State |
| 2023-10-17 | TOM LOWE ATLANTA-FULTON COUNTY WATER TREATMENT FACILITY | ALPHARETTA, Fulton, GA | Pass | State |
| 2023-10-17 | TOM LOWE ATLANTA-FULTON COUNTY WATER TREATMENT FACILITY | ALPHARETTA, Fulton, GA | Pass | State |
| 2023-10-17 | GENERAL SHALE BRICK, INC. - PLANT 50 | AUGUSTA, Richmond, GA | Pass | State |
| 2023-10-17 | GENERAL SHALE BRICK, INC. - PLANT 50 | AUGUSTA, Richmond, GA | Pass | State |
| 2023-10-17 | RAYONIER PERFORMANCE FIBERS, LLC | JESUP, Wayne, GA | Pass | State |
| 2023-10-17 | PRESTON MUNICIPAL UTILITIES | PRESTON (HISTORICAL), Jackson, IA | Pass | State |
| 2023-10-17 | PRESTON MUNICIPAL UTILITIES | PRESTON (HISTORICAL), Jackson, IA | Pass | State |
| 2023-10-17 | UNIVERSITY OF IOWA | IOWA CITY, Johnson, IA | Pass | State |
| 2023-10-17 | NATURAL GAS PIPELINE CO OF AMERICA-#107 | EMERSON, Mills, IA | Pass | State |
| 2023-10-17 | SNAKE RIVER OIL AND GAS LLC - LITTLE WILLOW ROAD GATHERING FACILITY | NEW PLYMOUTH, Payette, ID | Pass | State |
| 2023-10-17 | RIVERSIDE HOSPITAL | KANKAKEE, Kankakee, IL | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | DUALTECH INCORPORATED — high-priority violation on file | FRANKLIN, Johnson, IN | Pass | State |
| 2023-10-17 | ANR PIPELINE COMPANY ST JOHN COMPRESSOR STATION | SAINT JOHN, Lake, IN | Pass | State |
| 2023-10-17 | LINDE ADVANCED MATERIAL TECHNOLOGIES INC | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-10-17 | AZTECA MILLING LP — high-priority violation on file | EVANSVILLE, Vanderburgh, IN | Pass | State |
| 2023-10-17 | AZTECA MILLING LP — high-priority violation on file | EVANSVILLE, Vanderburgh, IN | Pass | State |
| 2023-10-17 | HARSHMAN CONST (MASTER EQUIP LIST) (AIR) | CEDAR POINT, Marion, KS | Pass | State |
| 2023-10-17 | EAST KY POWER - J K SMITH STATION | WINCHESTER, Clark, KY | Pass | State |
| 2023-10-17 | CENTURY ALUMINUM SEBREE LLC | ROBARDS, Henderson, KY | Pass | State |
| 2023-10-17 | MASON CO KY FISCAL COURT | MAYSVILLE, Mason, KY | Pass | State |
| 2023-10-17 | DOMINION TRANSMISSION, INC | MIDDLETOWN, Frederick, MD | Pass | State |
| 2023-10-17 | BACKYARD FARMS, LLC | MADISON, Somerset, ME | Pass | State |
| 2023-10-17 | DOW SILICONES CORPORATION | MIDLAND, Midland, MI | Pending | State |
| 2023-10-17 | ST MARYS CEMENT U.S. LLC, CHARLEVOIX PLANT | CHARLEVOIX, Charlevoix, MI | Pass | State |
| 2023-10-17 | ZEELAND FARM SERVICES, INC. — high-priority violation on file | ZEELAND, Ottawa, MI | Pass | State |
| 2023-10-17 | AMERICAN CRYSTAL SUGAR - CROOKSTON | CROOKSTON, Polk, MN | Pass | State |
| 2023-10-17 | XCEL ENERGY - SHERBURNE COUNTY GENERATING PLANT | BECKER, Sherburne, MN | Pass | State |
| 2023-10-17 | BUFFALO WWTP | BUFFALO, Wright, MN | Pass | State |
| 2023-10-17 | VISION RNG | BOWLING GREEN, Pike, MO | Pass | State |
| 2023-10-17 | GULF SOUTH PIPELINE COMPANY LLC, PETAL COMPRESSOR STATION | PETAL, Forrest, MS | Pass | State |
| 2023-10-17 | GULF SOUTH PIPELINE COMPANY LLC, PETAL COMPRESSOR STATION | PETAL, Forrest, MS | Pass | State |
| 2023-10-17 | ROXUL USA INC | BYHALIA, Marshall, MS | Pass | State |
| 2023-10-17 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Pass | State |
| 2023-10-17 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Pass | State |
| 2023-10-17 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Pass | State |
| 2023-10-17 | USG INTERIORS LLC | GREENVILLE, Washington, MS | Pass | State |
| 2023-10-17 | INGENCO WHOLESALE POWER, LLC - NEW BERN | NEW BERN, Craven, NC | Pass | State |
| 2023-10-17 | ONEOK ROCKIES MIDSTREAM, L.L.C. - GARDEN CREEK GAS PLANT - AQ | WATFORD CITY, McKenzie, ND | Pass | State |
| 2023-10-17 | AMERICAN CRYSTAL SUGAR COMPANY (ACS) - DRAYTON PLANT - AQ | DRAYTON, Pembina, ND | Fail | State |
| 2023-10-17 | POET BIOREFINING-FAIRMONT LLC — high-priority violation on file | FAIRMONT, Fillmore, NE | N/A | State |
| 2023-10-17 | HOPE PUMP STATION | ARTESIA, Chaves, NM | Pass | State |
| 2023-10-17 | BLACK RIVER GAS PROCESSING PLANT — high-priority violation on file | LOVING, Eddy, NM | Pass | State |
| 2023-10-17 | WHITEHORN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | WHITEHORN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | WHITEHORN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | WHITEHORN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | WHITEHORN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | WHITEHORN COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | HUMIDOR COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | NORTH CORRIDOR EAST CENTRAL GAS LIFT | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | SECTION 9 COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-10-17 | LOST TANK 13 BOO STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-17 | MERCHANT STATE UNIT NO 504H FACILITY | EUNICE, Lea, NM | Pass | State |
| 2023-10-17 | RED TANK 26 BOO STATION | MONUMENT, Lea, NM | Pass | State |
| 2023-10-17 | RED TANK 26 BOO STATION | MONUMENT, Lea, NM | Pass | State |
| 2023-10-17 | SYLVAMO TICONDEROGA MILL | TICONDEROGA, Essex, NY | Pass | State |
| 2023-10-17 | GUARDIAN INDUSTRIES CORP | GENEVA, Ontario, NY | Pass | State |
| 2023-10-17 | YOUNGSTOWN STATE UNIVERSITY | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Fail | State |
| 2023-10-17 | CLARIOS, LLC. | HOLLAND, Lucas, OH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.