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 |
|---|---|---|---|---|
| 2020-09-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-09 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-09 | PUBLIC SERV - ROCKY MOUNTAIN ENERGY | HUDSON AREA, Weld, CO | Pass | State |
| 2020-09-09 | DCP OPERATING CO - GODFREY BOTTOM C.S. | EVANS AREA, Weld, CO | Pass | State |
| 2020-09-09 | DCP OPERATING CO - GODFREY BOTTOM C.S. | EVANS AREA, Weld, CO | Pass | State |
| 2020-09-09 | KERR-MCGEE - MUSTANG 44-22 PRODUCTION | KERSEY 8.6 MI. N OF, Weld, CO | Pass | State |
| 2020-09-09 | KERR-MCGEE - MUSTANG 44-22 PRODUCTION | KERSEY 8.6 MI. N OF, Weld, CO | Pass | State |
| 2020-09-09 | KERR-MCGEE - MUSTANG 44-22 PRODUCTION | KERSEY 8.6 MI. N OF, Weld, CO | Pass | State |
| 2020-09-09 | ST. ELIZABETHS WEST CAMPUS - GSA | WASHINGTON, District of Columbia, DC | Pending | State |
| 2020-09-09 | TAMPA ELECTRIC COMPANY (TEC) | GIBSONTON, Hillsborough, FL | Pass | State |
| 2020-09-09 | TAMPA ELECTRIC COMPANY (TEC) | GIBSONTON, Hillsborough, FL | Pass | State |
| 2020-09-09 | RAYONIER PERFORMANCE FIBERS, LLC | FERNANDINA BEACH, Nassau, FL | Pass | State |
| 2020-09-09 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2020-09-09 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2020-09-09 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2020-09-09 | TIPTON MUNICIPAL UTILITIES | TIPTON (HISTORICAL), Cedar, IA | Pass | State |
| 2020-09-09 | KEOKUK MILLS, LLC DBA KEOKUK STEEL CASTINGS, INC. | KEOKUK, Lee, IA | Pass | State |
| 2020-09-09 | KEOKUK MILLS, LLC DBA KEOKUK STEEL CASTINGS, INC. | KEOKUK, Lee, IA | Pass | State |
| 2020-09-09 | JBS USA PORK | OTTUMWA, Wapello, IA | Fail | State |
| 2020-09-09 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2020-09-09 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2020-09-09 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2020-09-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2020-09-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2020-09-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2020-09-09 | RIETH RILEY CONSTRUCTION COMPANY INCORPORATED | SOUTH BEND, St. Joseph, IN | Pass | State |
| 2020-09-09 | RIETH RILEY CONSTRUCTION COMPANY INCORPORATED | SOUTH BEND, St. Joseph, IN | Pass | State |
| 2020-09-09 | RIETH RILEY CONSTRUCTION COMPANY INCORPORATED | SOUTH BEND, St. Joseph, IN | Pass | State |
| 2020-09-09 | RIETH RILEY CONSTRUCTION COMPANY INCORPORATED | SOUTH BEND, St. Joseph, IN | Pass | State |
| 2020-09-09 | ST. JOSEPH ENERGY CENTER LLC — high-priority violation on file | NEW CARLISLE, St. Joseph, IN | Pass | State |
| 2020-09-09 | BLUEGRASS INGREDIENTS, INC | SPRINGFIELD, Washington, KY | Pass | State |
| 2020-09-09 | PIKE INDUSTRIES, INC. | PHILLIPS, Franklin, ME | Pass | State |
| 2020-09-09 | WOODLAND PULP LLC — high-priority violation on file | BAILEYVILLE, TOWN OF, Washington, ME | Pass | State |
| 2020-09-09 | AMRIZE CEMENT INC. — high-priority violation on file | ALPENA, Alpena, MI | Pass | State |
| 2020-09-09 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | MONROE, Monroe, MI | Pass | State |
| 2020-09-09 | MICHIGAN PAVING & MATERIALS CO. | GRAND RAPIDS, Kent, MI | Fail | State |
| 2020-09-09 | CHS HALLOCK | KENNEDY, Kittson, MN | Pass | State |
| 2020-09-09 | MARVIN WINDOWS AND DOORS | WARROAD, Roseau, MN | Pass | State |
| 2020-09-09 | HEARTLAND CORN PRODUCTS | WINTHROP, Sibley, MN | Pass | State |
| 2020-09-09 | EVERGY-LAKE ROAD GENERATING STATION | SAINT JOSEPH, Buchanan, MO | Pending | State |
| 2020-09-09 | ARDAGH GLASS INC. | PEVELY, Jefferson, MO | Pending | State |
| 2020-09-09 | ARDAGH GLASS INC. | PEVELY, Jefferson, MO | Pending | State |
| 2020-09-09 | NEW MADRID POWER PLANT-ASSOC ELEC COOP | MARSTON, New Madrid, MO | Pending | State |
| 2020-09-09 | GASTON COUNTY LANDFILL - HARDIN SITE | DALLAS, Gaston, NC | Pass | State |
| 2020-09-09 | WESTROCK KRAFT PAPER, LLC | ROANOKE RAPIDS, Halifax, NC | Pending | State |
| 2020-09-09 | CHIEF ETHANOL FUELS INC | HASTINGS, Adams, NE | Pass | State |
| 2020-09-09 | HEBRON-BRIDGEWATER REGIONAL REFUSE DISTRICT — high-priority violation on file | BRIDGEWATER, Grafton, NH | Pass | State |
| 2020-09-09 | NASHUA, CITY OF - WASTEWATER TREATMENT FACILITY | NASHUA, Hillsborough, NH | Pass | State |
| 2020-09-09 | NASHUA, CITY OF - WASTEWATER TREATMENT FACILITY | NASHUA, Hillsborough, NH | Pass | State |
| 2020-09-09 | NASH DRAW COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2020-09-09 | THISTLE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-09-09 | BLACK AND TAN CTB | EUNICE, Lea, NM | Pass | State |
| 2020-09-09 | BLACK AND TAN CTB | EUNICE, Lea, NM | Pass | State |
| 2020-09-09 | BABYLON RESOURCE RECOVERY FACILITY | WEST BABYLON, Suffolk, NY | Pass | State |
| 2020-09-09 | ENBRIDGE GAS OHIO - NEW LYME COMPRESSOR STATION | JEFFERSON, Ashtabula, OH | Pass | State |
| 2020-09-09 | ENBRIDGE GAS OHIO - NEW LYME COMPRESSOR STATION | JEFFERSON, Ashtabula, OH | Pass | State |
| 2020-09-09 | ENBRIDGE GAS OHIO - NEW LYME COMPRESSOR STATION | JEFFERSON, Ashtabula, OH | Pass | State |
| 2020-09-09 | EQM OLYMPUS - TITAN COMPRESSOR STATION | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2020-09-09 | EQM OLYMPUS - TITAN COMPRESSOR STATION | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2020-09-09 | EQM OLYMPUS - TITAN COMPRESSOR STATION | WASHINGTON, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2020-09-09 | COSHOCTON LANDFILL | COSHOCTON, Coshocton, OH | Pass | State |
| 2020-09-09 | ASCENT RESOURCES - UTICA LLC - MOHOROVICH RCH GR | SENECAVILLE, Guernsey, OH | Pass | State |
| 2020-09-09 | ASCENT RESOURCES - UTICA LLC - MOHOROVICH RCH GR | SENECAVILLE, Guernsey, OH | Pass | State |
| 2020-09-09 | ASCENT RESOURCES - UTICA LLC - MOHOROVICH RCH GR | SENECAVILLE, Guernsey, OH | Pass | State |
| 2020-09-09 | PINNACLE GAS PRODUCERS LLC | MORAINE, Montgomery, OH | Pass | State |
| 2020-09-09 | TPL ARKOMA HOLDINGS LLC / COALGATE TUPELO STONEWALL GAS PLANT — high-priority violation on file | COALGATE, Coal, OK | Pass | State |
| 2020-09-09 | MARKWEST OKLAHOMA GAS CO LLC / WOMACK COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2020-09-09 | TPL ARKOMA HOLDINGS LLC / ABLE COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2020-09-09 | TPL ARKOMA MIDSTREAM LLC / CANEY CREEK COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2020-09-09 | ONEOK FIELD SERVICES CO LLC / ANTIOCH BOOSTER STATION | ANTIOCH, Garvin, OK | Pass | State |
| 2020-09-09 | ONEOK FIELD SERVICES CO LLC / ANTIOCH BOOSTER STATION | ANTIOCH, Garvin, OK | Pass | State |
| 2020-09-09 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2020-09-09 | ONEOK HYDROCARBON LP / MEDFORD FRACTIONATOR — high-priority violation on file | MEDFORD, Grant, OK | Pass | State |
| 2020-09-09 | MARKWEST OKLAHOMA GAS CO LLC / BREWER COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2020-09-09 | MARKWEST OKLAHOMA GAS CO LLC / STUART NORTH COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2020-09-09 | GEORGIA PACIFIC MUSKOGEE LLC / MUSKOGEE MILL | MUSKOGEE, Muskogee, OK | Pass | State |
| 2020-09-09 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2020-09-09 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2020-09-09 | ET GATHERING PROCESSING LLC / WHEATLAND COMPRESSOR STATION | HOPETON, Woods, OK | Pass | State |
| 2020-09-09 | GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file | CLATSKANIE, Clatsop, OR | Pass | State |
| 2020-09-09 | UNITED REFINING CO/WARREN PLT | WARREN, Warren, PA | Pass | State |
| 2020-09-09 | WOODGRAIN INC/FIBER DIV PA | TOWANDA, Bradford, PA | Pass | State |
| 2020-09-09 | COLUMBIA GAS TRANS CORP/GETTYSBURG COMP STA | GETTYSBURG, Adams, PA | Pass | State |
| 2020-09-09 | SCHUYLKILL ENERGY RES/ST NICHOLAS COGEN — high-priority violation on file | SHENANDOAH, Schuylkill, PA | Pass | State |
| 2020-09-09 | HIGHWAY MATERIALS INC/PLYMOUTH MTG ASPHALT PLT | PLYMOUTH MEETING, Montgomery, PA | Pass | State |
| 2020-09-09 | PINE GROVE LDFL INC/PINE GROVE LDFL | PINE GROVE, Schuylkill, PA | Pass | State |
| 2020-09-09 | LAUREL MTN MIDSTREAM OPR LLC/SHAMROCK COMP STA — high-priority violation on file | SALEM, Fayette, PA | Pass | State |
| 2020-09-09 | UGI TEXAS CREEK LLC/CLEGG COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2020-09-09 | SUPERIOR APPALACHIAN PIPELINE/FRAZER | PENNSYLVANIA, Undetermined, PA | Pass | Local |
| 2020-09-09 | SUPERIOR APPALACHIAN PIPELINE/FRAZER | PENNSYLVANIA, Undetermined, PA | Pass | Local |
| 2020-09-09 | URQUHART STATION | BEECH ISLAND, Aiken, SC | Pass | State |
| 2020-09-09 | SHAW INDUSTRIES GROUP INC PLANT 8S | COLUMBIA, Lexington, SC | Pass | State |
| 2020-09-09 | MICHELIN NORTH AMERICA INC - SPARTANBURG FACILITY (US3) | SPARTANBURG, Spartanburg, SC | Pass | State |
| 2020-09-09 | PROAMPAC US LLC -SPARTANBURG — high-priority violation on file | SPARTANBURG, Spartanburg, SC | Pass | State |
| 2020-09-09 | RING NECK ENERGY & FEED LLC — high-priority violation on file | ONIDA, Sully, SD | Pass | State |
| 2020-09-09 | EXXONMOBIL CHEMICAL MONT BELVIEU PLASTICS PLANT | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-09-09 | EXXONMOBIL CHEMICAL MONT BELVIEU PLASTICS PLANT | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-09-09 | EXXONMOBIL CHEMICAL MONT BELVIEU PLASTICS PLANT | MONT BELVIEU, Chambers, TX | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in 2020. It lists 33,437 stack tests recorded nationwide in 2020.