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.
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.