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 |
|---|---|---|---|---|
| 2020-10-26 | TOM STACK LLC / ROGUE COMPRESSOR STATION | CONCHO, Canadian, OK | Pass | State |
| 2020-10-26 | FW MIDCON I LLC / TOM 0604 1H 13X TDR 0604 1H 14X | CRINER, McClain, OK | Pass | State |
| 2020-10-26 | TERRA NITROGEN LP / VERDIGRIS PLANT | CLAREMORE, Rogers, OK | Pass | State |
| 2020-10-26 | FW MIDCON I LLC / MASHBURN 2H 33X | BRAY, Stephens, OK | Pass | State |
| 2020-10-26 | EQT PROD CO/EALY WELLPAD | EAST FINLEY, Washington, PA | Pass | State |
| 2020-10-26 | WEST KARNES CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | EAST KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2020-10-26 | WASTE MANAGEMENT OF WISCONSIN, INC. - PHEASANT RUN RECYCLING AND DISPOSAL FACILI | BRISTOL, Kenosha, WI | Pass | State |
| 2020-10-26 | CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, RAVENSWOOD | RAVENSWOOD, Jackson, WV | Pass | State |
| 2020-10-24 | BANK OF AMERICA | NEW YORK, New York, NY | Pass | U.S. EPA |
| 2020-10-23 | OLS ENERGY CHINO | CHINO, San Bernardino, CA | Pass | Local |
| 2020-10-23 | OLS ENERGY CHINO | CHINO, San Bernardino, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2020-10-23 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2020-10-23 | MIAMI-DADE WATER AND SEWER DEPARTMENT | HIALEAH, Miami-Dade, FL | Pass | State |
| 2020-10-23 | MIAMI-DADE WATER AND SEWER DEPARTMENT | HIALEAH, Miami-Dade, FL | Pass | State |
| 2020-10-23 | MIAMI-DADE WATER AND SEWER DEPARTMENT | HIALEAH, Miami-Dade, FL | Pass | State |
| 2020-10-23 | MID PAC PETROLEUM - KAWAIHAE | KAWAIHAE, Hawaii, HI | Pass | State |
| 2020-10-23 | OGDEN MUNICIPAL UTILITIES | OGDEN, Boone, IA | Pass | State |
| 2020-10-23 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2020-10-23 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2020-10-23 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2020-10-23 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2020-10-23 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2020-10-23 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2020-10-23 | SUPERIOR ALUMINUM ALLOYS LLC — high-priority violation on file | NEW HAVEN, Allen, IN | Pass | State |
| 2020-10-23 | METAL TECHNOLOGIES AUBURN LLC — high-priority violation on file | AUBURN, DeKalb, IN | Pass | State |
| 2020-10-23 | BAVARIAN TRUCKING COMPANY INC | WALTON, Boone, KY | Pass | State |
| 2020-10-23 | ECO MAINE | PORTLAND, Cumberland, ME | Pass | State |
| 2020-10-23 | DTE ST. CLAIR / BELLE RIVER POWER PLANT — high-priority violation on file | CHINA, St. Clair, MI | Pass | State |
| 2020-10-23 | MID AMERICA PIPELINE COMPANY, L.L.C. | CHILLICOTHE, Livingston, MO | Pending | State |
| 2020-10-23 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2020-10-23 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pass | State |
| 2020-10-23 | NOVOZYMES NORTH AMERICA, INC. | FRANKLINTON, Franklin, NC | Pass | State |
| 2020-10-23 | GLENMARK PHARMACEUTICALS, INC., USA | MONROE, Union, NC | Fail | State |
| 2020-10-23 | BANK OF AMERICA | NEW YORK, New York, NY | Pass | U.S. EPA |
| 2020-10-23 | PERFORMANCE MANUFACTURING CENTER | MARYSVILLE, Union, OH | Pass | State |
| 2020-10-23 | PEPPERIDGE FARM INC. | WILLARD, Huron, OH | Pass | State |
| 2020-10-23 | PEPPERIDGE FARM INC. | WILLARD, Huron, OH | Pass | State |
| 2020-10-23 | BUCKEYE ASPHALT GROUP LLC | PERRYSBURG, Wood, OH | Pass | State |
| 2020-10-23 | DEVON ENERGY PRODUCTION CO LP / EDWINA 1 28H | GREENFIELD, Blaine, OK | Pass | State |
| 2020-10-23 | DEVON ENERGY PRODUCTION CO LP / COLUMBINE 15 4AH | OMEGA, Blaine, OK | Pass | State |
| 2020-10-23 | FW MIDCON I LLC / RICKS 7 5 4 1H | MIDDLEBERG, Grady, OK | Pass | State |
| 2020-10-23 | FW MIDCON I LLC / WOOD 0704 1H 14X | DIBBLE, McClain, OK | Pass | State |
| 2020-10-23 | FW MIDCON I LLC / MARY J 2 4 25 36 2HA 10HA | FOSTER, Stephens, OK | Pass | State |
| 2020-10-23 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/HARMON CREEK GAS PLT — high-priority violation on file | BULGER, Washington, PA | Pass | State |
| 2020-10-23 | RED CEDAR GATHERING COMPANY - ARKANSAS LOOP AND SIMPSON TREATING PLANTS | SOUTHERN UTE RESERVATION, La Plata, CO | Pass | State |
| 2020-10-23 | PASADENA TERMINAL — high-priority violation on file | PASADENA, Harris, TX | Pass | State |
| 2020-10-23 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2020-10-22 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2020-10-22 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2020-10-22 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2020-10-22 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2020-10-22 | SANDERS LEAD CO | TROY, Pike, AL | Pass | State |
| 2020-10-22 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | WADLEY, Randolph, AL | Pass | State |
| 2020-10-22 | DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-2 | QUITMAN, Cleburne, AR | Pass | State |
| 2020-10-22 | DESOTO GATHERING COMPANY LLC - CHARLEY CPF-3 | HEBER SPRINGS, Cleburne, AR | Pass | State |
| 2020-10-22 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2020-10-22 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2020-10-22 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2020-10-22 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2020-10-22 | CHEVRON USA INC - PICEANCE BASIN CENTRAL | PARACHUTE 16.6 MI. NW OF, Garfield, CO | Pass | State |
| 2020-10-22 | BLACK HILLS ELECTRIC GENERATION - PAGS | PUEBLO, Pueblo, CO | Pass | State |
| 2020-10-22 | BLACK HILLS ELECTRIC GENERATION - PAGS | PUEBLO, Pueblo, CO | Pass | State |
| 2020-10-22 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2020-10-22 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2020-10-22 | BONANZA CREEK ENERGY- NORTH PLATTE 14-36 | KERSEY, Weld, CO | Pass | State |
| 2020-10-22 | BONANZA CREEK ENERGY- NORTH PLATTE 14-36 | KERSEY, Weld, CO | Pass | State |
| 2020-10-22 | BONANZA CREEK ENERGY- NORTH PLATTE 14-36 | KERSEY, Weld, CO | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.