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 |
|---|---|---|---|---|
| 2020-12-07 | SGL COMPOSITES LLC | MOSES LAKE, Grant, WA | Pass | State |
| 2020-12-07 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2020-12-07 | JOINT BASE LEWIS-MCCHORD | FORT LEWIS, Pierce, WA | Pass | Local |
| 2020-12-07 | JOINT BASE LEWIS-MCCHORD | FORT LEWIS, Pierce, WA | Pass | Local |
| 2020-12-07 | JOINT BASE LEWIS-MCCHORD | FORT LEWIS, Pierce, WA | Pass | Local |
| 2020-12-07 | JOINT BASE LEWIS-MCCHORD | FORT LEWIS, Pierce, WA | Pass | Local |
| 2020-12-07 | PROCTER & GAMBLE PAPER PRODUCTS CO | GREEN BAY, Brown, WI | N/A | State |
| 2020-12-07 | PROCTER & GAMBLE PAPER PRODUCTS CO | GREEN BAY, Brown, WI | Pass | State |
| 2020-12-07 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2020-12-07 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-12-05 | BONANZA CREEK - WETCO FARMS A-4 PAD | KERSEY 4.8 MI. N OF, Weld, CO | Pass | State |
| 2020-12-05 | DUVAL ASPHALT PRODUCTS, INC. | JACKSONVILLE, Duval, FL | Pass | State |
| 2020-12-05 | IOWA ARMY AMMUNITION PLANT | MIDDLETOWN, Des Moines, IA | Pending | U.S. EPA |
| 2020-12-04 | NATIONAL CEMENT CO OF ALABAMA — high-priority violation on file | RAGLAND, St. Clair, AL | Pass | State |
| 2020-12-04 | NATIONAL CEMENT CO OF ALABAMA — high-priority violation on file | RAGLAND, St. Clair, AL | Pass | State |
| 2020-12-04 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2020-12-04 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2020-12-04 | WASTE MANAGEMENT - COLORADO SPRINGS RECY | COLORADO SPRINGS AREA, El Paso, CO | Pass | State |
| 2020-12-04 | ARCOSA LWB LLC - LIGHTWEIGHT - BOULDER — high-priority violation on file | SUPERIOR AREA, Jefferson, CO | Pass | State |
| 2020-12-04 | BONANZA CREEK - WETCO FARMS A-4 PAD | KERSEY 4.8 MI. N OF, Weld, CO | Pass | State |
| 2020-12-04 | BONANZA CREEK - WETCO FARMS A-4 PAD | KERSEY 4.8 MI. N OF, Weld, CO | Pass | State |
| 2020-12-04 | DEVON POWER LLC | DEVON, New Haven, CT | Pass | State |
| 2020-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2020-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2020-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2020-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2020-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2020-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2020-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2020-12-04 | NIKKEI MC ALUMINUM AMERICA INC | COLUMBUS, Bartholomew, IN | Pass | State |
| 2020-12-04 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2020-12-04 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2020-12-04 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2020-12-04 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2020-12-04 | VOSS CLARK DBA PGP CORP | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2020-12-04 | AMRIZE - SPARROWS POINT FACILITY | SPARROWS POINT, Baltimore, MD | Fail | State |
| 2020-12-04 | GSA FEDERAL RESEARCH CENTER AT WHITE OAK | SILVER SPRING, Montgomery, MD | Pass | State |
| 2020-12-04 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2020-12-04 | AMRIZE CEMENT INC. — high-priority violation on file | ALPENA, Alpena, MI | Pass | State |
| 2020-12-04 | CHEMPRENE INC | BEACON, Dutchess, NY | Pass | State |
| 2020-12-04 | GSF ENERGY, LLC | CINCINNATI, Hamilton, OH | Pass | State |
| 2020-12-04 | INTERNATIONAL PAPER | SPRINGFIELD, Lane, OR | Pass | Local |
| 2020-12-04 | INTERNATIONAL PAPER | SPRINGFIELD, Lane, OR | Pass | Local |
| 2020-12-04 | REWORLD PLYMOUTH/ PLYMOUTH — high-priority violation on file | CONSHOHOCKEN, Montgomery, PA | Pass | State |
| 2020-12-04 | REWORLD PLYMOUTH/ PLYMOUTH — high-priority violation on file | CONSHOHOCKEN, Montgomery, PA | Pass | State |
| 2020-12-04 | CREPS UNITED PUBLICATIONS/WINDY RIDGE IND PARK | INDIANA, Indiana, PA | Pass | State |
| 2020-12-04 | RED CEDAR GATHERING COMPANY - SAMBRITO COMPRESSOR STATION | SOUTHERN UTE RESERVATION, La Plata, CO | Pass | State |
| 2020-12-04 | NIPPON DYNAWAVE PACKAGING COMPANY LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2020-12-04 | EQT XL MIDSTREAM OPERATING LLC, LEGACY CONDENSATE PAD | PROCTOR, Marshall, WV | Pass | State |
| 2020-12-04 | SAINT-GOBAIN CERAMICS & PLASTICS, INC., BUCKHANNO — high-priority violation on file | BUCKHANNON, Upshur, WV | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | KNAUF INSULATION | LANETT, Chambers, AL | Pass | State |
| 2020-12-03 | BOISE WHITE PAPER LLC | JACKSON, Clarke, AL | Pass | State |
| 2020-12-03 | BOISE WHITE PAPER LLC | JACKSON, Clarke, AL | Pass | State |
| 2020-12-03 | NATIONAL CEMENT CO OF ALABAMA — high-priority violation on file | RAGLAND, St. Clair, AL | Pass | State |
| 2020-12-03 | NATIONAL CEMENT CO OF ALABAMA — high-priority violation on file | RAGLAND, St. Clair, AL | Pass | State |
| 2020-12-03 | DRUMMOND COMPANY, INC. (ABC COKE) | BIRMINGHAM, Jefferson, AL | Pass | Local |
| 2020-12-03 | ALABAMA POWER COMPANY (MILLER POWER PLANT) | QUINTON, Jefferson, AL | Pass | Local |
| 2020-12-03 | ALBEMARLE CORPORATION-SOUTH PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2020-12-03 | JW ALUMINUM COMPANY | RUSSELLVILLE, Pope, AR | Pass | State |
| 2020-12-03 | JW ALUMINUM COMPANY | RUSSELLVILLE, Pope, AR | Fail | State |
| 2020-12-03 | ULTRAMAR INC | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2020-12-03 | LA CITY BUREAU OF SANITATION (LOPEZ CANYON) | LAKE VIEW TERRACE, Los Angeles, CA | Pass | Local |
| 2020-12-03 | LA CITY BUREAU OF SANITATION (LOPEZ CANYON) | LAKE VIEW TERRACE, Los Angeles, CA | Fail | Local |
| 2020-12-03 | BURBANK CITY, BURBANK WATER & POWER SCPP | BURBANK, Los Angeles, CA | Pass | Local |
| 2020-12-03 | ROCKY MOUNTAIN NAT GAS - PICEANCE | MEEKER 17.4 MI. W OF, Rio Blanco, CO | Pass | State |
| 2020-12-03 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | DACONO AREA, Weld, CO | Pass | State |
| 2020-12-03 | DEVON POWER LLC | DEVON, New Haven, CT | Pass | State |
| 2020-12-03 | QUIKRETE CONSTRUCTION MATERIALS, LLC | NEWBERRY, Alachua, FL | Pass | State |
| 2020-12-03 | U.S. SUGAR CORPORATION | CLEWISTON, Hendry, FL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.