EPA Air · stack tests by year
Air-emissions stack tests in 2020
- 33,437Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2020
- California 15,352
- Ohio 2,194
- Florida 1,532
- Oklahoma 1,517
- Indiana 1,473
- Georgia 1,147
- New Mexico 846
- Pennsylvania 725
- Alabama 674
- Texas 617
- Missouri 607
- Arkansas 589
- Mississippi 438
- Colorado 429
- Washington 407
- Iowa 355
- North Carolina 274
- Wyoming 235
- Wisconsin 229
- Michigan 222
- South Carolina 221
- Montana 217
- Minnesota 213
- Delaware 211
- Kentucky 184
- West Virginia 175
- Utah 158
- Tennessee 149
- Kansas 144
- Nebraska 142
- Alaska 141
- Maine 136
- Nevada 134
- Virginia 132
- Illinois 129
- North Dakota 129
- New Jersey 122
- Connecticut 110
- Arizona 97
- New York 93
- Hawaii 84
- Louisiana 83
- Idaho 81
- New Hampshire 72
- Maryland 46
- South Dakota 46
- Oregon 39
- Rhode Island 30
- District of Columbia 30
- Vermont 17
- Massachusetts 7
- Puerto Rico 3
Other years
Air-emissions stack tests recorded in 2020
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2020-11-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-03 | CHEVRON USA_(FORMERLY MIDWAY SUNSET OIL) — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-03 | NRO - AEROSPACE DATA FACIITY (ADF-C) | AURORA, Arapahoe, CO | Pass | State |
| 2020-11-03 | AMRIZE PORTLAND PLANT — high-priority violation on file | FLORENCE 3.8 MI. E OF, Fremont, CO | Pass | State |
| 2020-11-03 | GRAND RIVER GATHERING - PUMBA CS | RIFLE 3.4 MI. S OF, Garfield, CO | Pass | State |
| 2020-11-03 | LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file | PARACHUTE 10.1 MI. W OF, Garfield, CO | Pass | State |
| 2020-11-03 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2020-11-03 | ALGONQUIN GAS TRANSMISSION LLC - OXFORD COMPRESSOR STATION | OXFORD, New Haven, CT | Pass | State |
| 2020-11-03 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2020-11-03 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2020-11-03 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2020-11-03 | ASCEND PERFORMANCE MATERIALS OPERATIONS — high-priority violation on file | CANTONMENT, Escambia, FL | Pass | State |
| 2020-11-03 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2020-11-03 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2020-11-03 | DOUGLAS PELLETS, LLC | PEARSON, Atkinson, GA | Pass | State |
| 2020-11-03 | DOUGLAS PELLETS, LLC | PEARSON, Atkinson, GA | Pass | State |
| 2020-11-03 | IRVING CONSUMER PRODUCTS, INC. - MACON | MACON, Bibb, GA | Pass | State |
| 2020-11-03 | IRVING CONSUMER PRODUCTS, INC. - MACON | MACON, Bibb, GA | Pass | State |
| 2020-11-03 | KRATON CHEMICAL, LLC | SAVANNAH, Chatham, GA | Pass | State |
| 2020-11-03 | ACE POLE ACQUISITION, LLC | BLACKSHEAR, Pierce, GA | Pass | State |
| 2020-11-03 | ADM CLINTON BIOPROCESSING - CLINTON — high-priority violation on file | CLINTON, Clinton, IA | Pass | State |
| 2020-11-03 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | VALERO RENEWABLE FUELS COMPANY LLC DBA VALERO BLUFFTON PLANT | BLUFFTON, Wells, IN | Pass | State |
| 2020-11-03 | CENTURY ALUMINUM OF KY LLC | HAWESVILLE, Hancock, KY | Pass | State |
| 2020-11-03 | CENTURY ALUMINUM OF KY LLC | HAWESVILLE, Hancock, KY | Pass | State |
| 2020-11-03 | CENTURY ALUMINUM SEBREE LLC | ROBARDS, Henderson, KY | Pass | State |
| 2020-11-03 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2020-11-03 | EAGLE POINT ENERGY CENTER, LLC | ORRINGTON, Penobscot, ME | Pass | State |
| 2020-11-03 | EAGLE ALLOY, INC. | MUSKEGON, Muskegon, MI | Pass | State |
| 2020-11-03 | AMERICAN CRYSTAL SUGAR - MOORHEAD — high-priority violation on file | MOORHEAD, Clay, MN | Pass | State |
| 2020-11-03 | EVERGY-LAKE ROAD GENERATING STATION | SAINT JOSEPH, Buchanan, MO | Pending | State |
| 2020-11-03 | OWENS-CORNING STATELINE | JOPLIN, Jasper, MO | Pending | State |
| 2020-11-03 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pending | State |
| 2020-11-03 | 3M NEVADA-COMMERCIAL GRAPHICS | NEVADA, Vernon, MO | Pending | State |
| 2020-11-03 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-11-03 | GLOBAL CELLULOSE FIBERS - RIEGELWOOD MILL | RIEGELWOOD, Columbus, NC | Pending | State |
| 2020-11-03 | NORTHERN BORDER PIPELINE COMPANY - ZEELAND COMPRESSOR STATION - AQ | ZEELAND, McIntosh, ND | Pass | State |
| 2020-11-03 | LON D WRIGHT POWER PLANT | FREMONT, Dodge, NE | Pass | State |
| 2020-11-03 | LON D WRIGHT POWER PLANT | FREMONT, Dodge, NE | Pass | State |
| 2020-11-03 | ENTERPRISE - OXY SAND DUNES CENTRAL COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2020-11-03 | ENTERPRISE - OXY SAND DUNES CENTRAL COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2020-11-03 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-11-03 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-11-03 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-11-03 | CEMENT MANUFACTURING PLANT — high-priority violation on file | FERNLEY, Lyon, NV | Pass | State |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Fail | Local |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Fail | Local |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-03 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-03 | FINCH PAPER LLC | GLENS FALLS, Warren, NY | Pass | State |
| 2020-11-03 | TFO TECH CO LTD | JEFFERSONVILLE, Fayette, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | SOUTHERLY WASTEWATER TREATMENT CENTER | CUYAHOGA HEIGHTS, Cuyahoga, OH | Pass | State |
| 2020-11-03 | ET GATHERING PROCESSING LLC / GREENFIELD COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2020-11-03 | ET GATHERING PROCESSING LLC / KION COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2020-11-03 | ONEOK FIELD SERVICES CO LLC / MAST EAST FOSS COMPRESSOR STATION | WEATHERFORD, Custer, OK | Pass | State |
| 2020-11-03 | MUSTANG GAS PRODUCTS LLC / FLYNN COMPRESSOR STATION | DOUGLAS, Garfield, OK | Pass | State |
| 2020-11-03 | DEVON ENERGY PRODUCTION CO LP / MCCARTHY 10 3 PAD 2 | OKARCHE, Kingfisher, OK | Pass | State |
| 2020-11-03 | DEVON ENERGY PRODUCTION CO LP / MCCARTHY 10 3 PAD 3 | OKARCHE, Kingfisher, OK | Pass | State |
| 2020-11-03 | ENABLE GAS TRANSMISSION LLC / BYARS LAKE COMPRESSOR STATION | BYARS, McClain, OK | Pass | State |
| 2020-11-03 | ENABLE GAS TRANSMISSION LLC / BYARS LAKE COMPRESSOR STATION | BYARS, McClain, OK | Pass | State |
| 2020-11-03 | TULSA LFG LLC / AMERICAN ENVIRONMENTAL LANDFILL | SAND SPRINGS, Osage, OK | Pass | State |
| 2020-11-03 | ET GATHERING PROCESSING LLC / SCOUT COMPRESSOR STATION | FREEDOM, Woods, OK | Pass | State |
| 2020-11-03 | ET GATHERING PROCESSING LLC / SCOUT COMPRESSOR STATION | FREEDOM, Woods, OK | Pass | State |
| 2020-11-03 | HEIDELBERG MATERIALS US CEMENT LLC/EVANSVILLE CEMENT PLT & Q — high-priority violation on file | FLEETWOOD, Berks, PA | Fail | State |
| 2020-11-03 | WILLIAMS FIELD SVC CO LLC/LATHROP COMP STA | SPRINGVILLE, Susquehanna, PA | Pass | State |
| 2020-11-03 | WILLIAMS FIELD SVC CO LLC/JONES COMP STA | FRIENDSVILLE, Susquehanna, PA | Pass | State |
| 2020-11-03 | NFG MIDSTREAM CLERMONT LLC/CLERMONT EAST COMP STA | WILCOX, McKean, PA | Pass | State |
| 2020-11-03 | EQM GATHERING OPCO LLC/MCINTOSH COMP STA | FINLEYVILLE, Washington, PA | Pass | State |
| 2020-11-03 | HILCORP ENERGY CO/NORTH BEAVER KEPHART PROD FAC | ENON VALLEY, Lawrence, PA | Pass | State |
| 2020-11-03 | WHARF RESOURCES INC - COEUR WHARF | LEAD, Lawrence, SD | Pass | State |
| 2020-11-03 | SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT | DURANGO, La Plata, CO | Pass | U.S. EPA |
| 2020-11-03 | VALERO PARTNERS MEMPHIS, LLC-MEMPHIS TRUCK RACK | MEMPHIS, Shelby, TN | Pass | Local |
| 2020-11-03 | ASCEND PERFORMANCE MATERIALS CHOCOLATE BAYOU PLANT | ALVIN, Brazoria, TX | Pass | State |
| 2020-11-03 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2020-11-03 | ATMUS FILTRATION INC. - NEILLSVILLE PLANT | NEILLSVILLE, Clark, WI | Pass | State |
| 2020-11-03 | AHLSTROM RHINELANDER LLC | RHINELANDER, Outagamie, WI | Pass | State |
| 2020-11-03 | ARMSTRONG WORLD INDUSTRIES, INC., MILLWOOD | MILLWOOD, Jackson, WV | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.