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 |
|---|---|---|---|---|
| 2020-12-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-02 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-12-02 | BONANZA CRK ENERGY - NORTH PLATTE 24-34 | KERSEY 6.1 MI. N OF, Weld, CO | Pass | State |
| 2020-12-02 | ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S. | LOCHBUIE AREA, Weld, CO | Pass | State |
| 2020-12-02 | ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S. | LOCHBUIE AREA, Weld, CO | Pass | State |
| 2020-12-02 | EXTRACTION O&G - JOHNSON'S CORNER | JOHNSTOWN, Weld, CO | Fail | State |
| 2020-12-02 | EXTRACTION O&G - JOHNSON'S CORNER | JOHNSTOWN, Weld, CO | Fail | State |
| 2020-12-02 | DEVON POWER LLC | DEVON, New Haven, CT | Pass | State |
| 2020-12-02 | PHOENIX SOIL, LLC | WATERBURY, New Haven, CT | Pass | State |
| 2020-12-02 | SFMC DBA VECENERGY | FORT LAUDERDALE, Broward, FL | Pass | State |
| 2020-12-02 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-12-02 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-12-02 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-12-02 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-12-02 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-12-02 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-12-02 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
| 2020-12-02 | OLDCASTLE APG SOUTH, INC. D/B/A COASTAL | TAMPA, Hillsborough, FL | Pass | State |
| 2020-12-02 | DART CONTAINER CORPORATION OF FLORIDA | PLANT CITY, Hillsborough, FL | Pass | State |
| 2020-12-02 | VULCAN CONSTRUCTION MATERIALS, LLC - LITHIA SPRINGS QUARRY | LITHIA SPRINGS, Douglas, GA | Pass | State |
| 2020-12-02 | IES - HONOLULU TRANSPORTATION | HONOLULU, Honolulu, HI | Pass | State |
| 2020-12-02 | AES HAWAII | KAPOLEI, Honolulu, HI | Pass | State |
| 2020-12-02 | CONAGRA GROCERY PRODUCTS INC | WATERLOO, Black Hawk, IA | Pass | State |
| 2020-12-02 | POET BIOREFINING - SHELL ROCK, LLC — high-priority violation on file | SHELL ROCK, Butler, IA | Pass | State |
| 2020-12-02 | CARGILL INC-EDDYVILLE | EDDYVILLE, Monroe, IA | Pass | State |
| 2020-12-02 | MID AMERICAN ENERGY CO-COUNCIL BLUFFS | COUNCIL BLUFFS, Pottawattamie, IA | Pass | State |
| 2020-12-02 | MIDAMERICAN ENERGY CO PLEASANT HILL GDMEC | PLEASANT HILL, Polk, IA | Pass | State |
| 2020-12-02 | GRAND VICTORIA CASINO | ELGIN, Kane, IL | Pass | State |
| 2020-12-02 | STEPAN CO | ELWOOD, Will, IL | Pass | State |
| 2020-12-02 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2020-12-02 | CLEVELAND-CLIFFS STEEL LLC — high-priority violation on file | EAST CHICAGO, Lake, IN | Pass | State |
| 2020-12-02 | RAYBESTOS POWERTRAIN LLC | SULLIVAN, Sullivan, IN | Pass | State |
| 2020-12-02 | RAYBESTOS POWERTRAIN LLC | SULLIVAN, Sullivan, IN | Pass | State |
| 2020-12-02 | RAYBESTOS POWERTRAIN LLC | SULLIVAN, Sullivan, IN | Pass | State |
| 2020-12-02 | RAYBESTOS POWERTRAIN LLC | SULLIVAN, Sullivan, IN | Pass | State |
| 2020-12-02 | RAYBESTOS POWERTRAIN LLC | SULLIVAN, Sullivan, IN | Pass | State |
| 2020-12-02 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2020-12-02 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2020-12-02 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2020-12-02 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2020-12-02 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2020-12-02 | STERICYCLE (AIR) | KANSAS CITY, Wyandotte, KS | Pass | State |
| 2020-12-02 | DANIMER SCIENTIFIC KY | WINCHESTER, Clark, KY | Pass | State |
| 2020-12-02 | US ARMY GARRISON FORT KNOX | FORT KNOX, Hardin, KY | Pass | State |
| 2020-12-02 | FORD MOTOR COMPANY KENTUCKY TRUCK PLANT | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2020-12-02 | LOUISVILLE MEDICAL CENTER STEAM PLANT | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2020-12-02 | DISCOVERY PRODUCER SERVICES LLC - LAROSE GAS PROCESSING PLANT — high-priority violation on file | LAROSE, Lafourche, LA | Pass | State |
| 2020-12-02 | RAVEN POWER FORT SMALLWOOD LLC | CURTIS BAY, Anne Arundel, MD | Pass | State |
| 2020-12-02 | DOMINION ENERGY COVE POINT LNG, LP | LUSBY, Calvert, MD | Pass | State |
| 2020-12-02 | AMRIZE — high-priority violation on file | HAGERSTOWN, Washington, MD | Pass | State |
| 2020-12-02 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2020-12-02 | DENSO MANUFACTURING MICHIGAN, INC. | BATTLE CREEK, Calhoun, MI | Pending | State |
| 2020-12-02 | LAMAR CITY ELECTRICAL GENERATION | LAMAR, Barton, MO | Pending | State |
| 2020-12-02 | ST. FRANCIS POWER PLANT | CAMPBELL, Dunklin, MO | Pending | State |
| 2020-12-02 | BASF AGRICULTURAL SOLUTIONS US LLC | PALMYRA, Marion, MO | Pending | State |
| 2020-12-02 | BASF AGRICULTURAL SOLUTIONS US LLC | PALMYRA, Marion, MO | Pending | State |
| 2020-12-02 | METROPOLITAN ST. LOUIS SEWER DISTRICT | SAINT LOUIS COUNTY, St. Louis, MO | Pending | State |
| 2020-12-02 | METROPOLITAN ST. LOUIS SEWER DISTRICT BISSELL POINT WWTP | SAINT LOUIS, St. Louis (city), MO | Pending | State |
| 2020-12-02 | METROPOLITAN ST. LOUIS SEWER DISTRICT BISSELL POINT WWTP | SAINT LOUIS, St. Louis (city), MO | Pending | State |
| 2020-12-02 | PTI, LLC - HICKORY | HICKORY, Catawba, NC | Pass | State |
| 2020-12-02 | OLYMPIC PRODUCTS, LLC | GREENSBORO, Guilford, NC | Pass | State |
| 2020-12-02 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2020-12-02 | TIGER COMPRESSOR STATION — high-priority violation on file | MALAGA, Eddy, NM | Pass | State |
| 2020-12-02 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-02 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-02 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-02 | MILKY WAY COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-12-02 | INEOS NITRILES USA LLC | LIMA, Allen, OH | Pass | State |
| 2020-12-02 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2020-12-02 | CLEVELAND-CLIFFS, INC. - MANSFIELD OPERATIONS | MANSFIELD, Richland, OH | Pass | State |
| 2020-12-02 | MARKWEST OKLAHOMA GAS CO LLC / STANGL COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-12-02 | RI DEPT.OF ADMINISTRATION,PASTORE CENTER | CRANSTON, Providence, RI | Pass | State |
| 2020-12-02 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | PINEVILLE, Berkeley, SC | Pass | State |
| 2020-12-02 | CONTINENTAL TIRES THE AMERICAS LLC | SUMTER, Sumter, SC | Pass | State |
| 2020-12-02 | MADISON GENERATION PLANT | MADISON, Lake, SD | Pass | State |
| 2020-12-02 | PACKAGING CORPORATION OF AMERICA — high-priority violation on file | WALLULA, Walla Walla, WA | Pass | State |
| 2020-12-02 | APPALACHIAN POWER CO. - MOUNTAINEER PLANT, NEW HAVEN | NEW HAVEN, Mason, WV | Pass | State |
| 2020-12-02 | COLUMBIA GAS TRANSMISSION, LLC, KENOVA | KENOVA, Wayne, WV | Pass | State |
| 2020-12-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2020-12-01 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-01 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-01 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-01 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-01 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-01 | WILLIAMS MOBILE BAY PRODUCER SERVICES, LLC | CODEN, Mobile, AL | Pass | State |
| 2020-12-01 | UNITED STATES STEEL CORPORATIONFAIRFIELD PIPE MIL | FAIRFIELD, Jefferson, AL | Pending | Local |
| 2020-12-01 | AIR PRODUCTS MANUFACTURING, LLC — high-priority violation on file | PARAMOUNT, Los Angeles, CA | Pass | Local |
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.