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.