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 |
|---|---|---|---|---|
| 2020-11-04 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-11-04 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-11-04 | CHEVRON USA INC, CHEVRON PRODUCTS COMPANY, PASCAGOULA REFINERY | PASCAGOULA, Jackson, MS | Pass | State |
| 2020-11-04 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2020-11-04 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2020-11-04 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2020-11-04 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2020-11-04 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2020-11-04 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2020-11-04 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2020-11-04 | WASHINGTON RANCH STORAGE FACILITY — high-priority violation on file | WHITES CITY, Eddy, NM | Pass | State |
| 2020-11-04 | POKER LAKE NO1 COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2020-11-04 | ENTERPRISE - OXY SAND DUNES CENTRAL COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2020-11-04 | PECOS RIVER TREATER | MALAGA, Eddy, NM | Pass | State |
| 2020-11-04 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-11-04 | GOLDSTRIKE MINE | CARLIN, Eureka, NV | Pass | State |
| 2020-11-04 | WINNEMUCCA PLANT — high-priority violation on file | WINNEMUCCA, Humboldt, NV | Pass | State |
| 2020-11-04 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-04 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-11-04 | AQUATIC COMPANY — high-priority violation on file | MOAPA, Clark, NV | Pass | Local |
| 2020-11-04 | NEXPERA FORT HILL PLANT | NORTH BEND, Hamilton, OH | Pass | State |
| 2020-11-04 | NEXPERA FORT HILL PLANT | NORTH BEND, Hamilton, OH | Pass | State |
| 2020-11-04 | NEXPERA FORT HILL PLANT | NORTH BEND, Hamilton, OH | Pass | State |
| 2020-11-04 | DEVON ENERGY PRODUCTION CO LP / KRAKEN CTB | WATONGA, Blaine, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / NAPLES COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2020-11-04 | ONEOK FIELD SERVICES CO LLC / RIDDLE COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2020-11-04 | ONEOK FIELD SERVICES CO LLC / RIDDLE COMPRESSOR STATION | ALEX, Grady, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / POWELL COMPRESSOR STATION | ASHLAND, Pittsburg, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / POWELL COMPRESSOR STATION | ASHLAND, Pittsburg, OK | Pass | State |
| 2020-11-04 | ET GATHERING PROCESSING LLC / POWELL COMPRESSOR STATION | ASHLAND, Pittsburg, OK | Pass | State |
| 2020-11-04 | GEORGIA-PACIFIC WAUNA LLC — high-priority violation on file | CLATSKANIE, Clatsop, OR | Pass | State |
| 2020-11-04 | WASTE MGMT OF FAIRLESS/FAIRLESS LDFL — high-priority violation on file | MORRISVILLE, Bucks, PA | Pass | State |
| 2020-11-04 | ALLEGHENY ENERGY SUPPLY/SPRINGDALE | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2020-11-04 | REEVES CONSTRUCTION COMPANY - BLACKSBURG ASPHALT PLANT | BLACKSBURG, Cherokee, SC | Pass | State |
| 2020-11-04 | SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT | DURANGO, La Plata, CO | Pass | U.S. EPA |
| 2020-11-04 | SMITH & NEPHEW, INC. | MEMPHIS, Shelby, TN | Pass | Local |
| 2020-11-04 | FUJIFILM WAKO CHEMICALS USA CORP | RICHMOND, Chesterfield, VA | Pass | State |
| 2020-11-04 | T M T GRAVEL AND CONTRACTING INC - PORTABLE 52899 | ASHLAND, Hanover, VA | Pass | State |
| 2020-11-04 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2020-11-04 | ANR PIPELINE CO - KEWASKUM COMPRESSOR ST | ADELL, Taylor, WI | Pass | State |
| 2020-11-04 | MARKWEST LIBERTY MIDSTREAM & RESOURCES, L.L.C., SHERWOOD | WEST UNION, Doddridge, WV | Pass | State |
| 2020-11-04 | APPALACHIA MIDSTREAM SERVICES, L.L.C., PLEASANTS | ADALINE, Marshall, WV | Pass | State |
| 2020-11-04 | WYODAK PLANT (PACIFICORP) | GILLETTE, Campbell, WY | Pass | State |
| 2020-11-04 | BEAR DRAW-BRUIN COMPRESSOR STATION (POWDER RIVER MIDSTREAM LLC) | JOHNSON COUNTY, Johnson, WY | Pass | State |
| 2020-11-04 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2020-11-03 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2020-11-03 | NUCOR STEEL DECATUR LLC | TRINITY, Morgan, AL | Pass | State |
| 2020-11-03 | NUCOR STEEL DECATUR LLC | TRINITY, Morgan, AL | Pass | State |
| 2020-11-03 | MISSISSIPPI LIME COMPANY | CALERA, Shelby, AL | Pass | State |
| 2020-11-03 | MISSISSIPPI LIME COMPANY | CALERA, Shelby, AL | Pass | State |
| 2020-11-03 | DESOTO GATHERING COMPANY LLC - YELLOWSTONE CPF-2 | QUITMAN, Van Buren, AR | Pass | State |
| 2020-11-03 | DESOTO GATHERING COMPANY, LLC - YELLOWSTONE CPF-3 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2020-11-03 | RAZORBACK GATHERING COMPANY, LLC. - ROSE BUD COMPRESSOR STATION | SEARCY, White, AR | Pass | State |
| 2020-11-03 | RAZORBACK GATHERING COMPANY, LLC. - ROSE BUD COMPRESSOR STATION | SEARCY, White, AR | Pass | State |
| 2020-11-03 | BLYTHE ENERGY LLC (FPL FLORIDA POWER) | BLYTHE, Riverside, CA | Pass | Local |
| 2020-11-03 | CITY OF SACRAMENTO - 28TH ST LANDFILL | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, CA | Pass | Local |
| 2020-11-03 | RIO BRAVO FRESNO — high-priority violation on file | FRESNO, Fresno, 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.