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 |
|---|---|---|---|---|
| 2020-09-28 | BLUE RACER MIDSTREAM LLC - BFS#2 (FLUSHING A) | FLUSHING, Belmont, OH | Pass | State |
| 2020-09-28 | BLUE RACER MIDSTREAM LLC - BFS#2 (FLUSHING A) | FLUSHING, Belmont, OH | Pass | State |
| 2020-09-28 | BLUE RACER MIDSTREAM LLC - HFS#2 | CADIZ, Harrison, OH | Pass | State |
| 2020-09-28 | BLUE RACER MIDSTREAM LLC - HFS#2 | CADIZ, Harrison, OH | Pass | State |
| 2020-09-28 | BLUE RACER MIDSTREAM LLC - HFS#2 | CADIZ, Harrison, OH | Pass | State |
| 2020-09-28 | WILLIAMS MIDSTREAM GAS SERVICES LLC / HELENA COMPRESSOR STATION | HELENA, Alfalfa, OK | Pass | State |
| 2020-09-28 | WILLIAMS MIDSTREAM GAS SERVICES LLC / HELENA COMPRESSOR STATION | HELENA, Alfalfa, OK | Pass | State |
| 2020-09-28 | FW MIDCON I LLC / ROTHER 1H 5X | CALUMET, Canadian, OK | Pass | State |
| 2020-09-28 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2020-09-28 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2020-09-28 | CONTINENTAL RESOURCES / Z 21 1 17 8XH | MIDDLEBERG, Grady, OK | Pass | State |
| 2020-09-28 | CONTINENTAL RESOURCES / LAMBRECHT 4 17 20XHW LAMBRECHT 5 17 20 | MIDDLEBERG, Grady, OK | Pass | State |
| 2020-09-28 | MARKWEST OKLAHOMA GAS CO LLC / LOYAL COMPRESSOR STATION | LOYAL, Kingfisher, OK | Pass | State |
| 2020-09-28 | MARKWEST OKLAHOMA GAS CO LLC / LOYAL COMPRESSOR STATION | LOYAL, Kingfisher, OK | Pass | State |
| 2020-09-28 | NATL FUEL GAS SUPPLY/ELLISBURG STA | ELLISBURG, Potter, PA | Pass | State |
| 2020-09-28 | NEW ENTERPRISE STONE & LIME CO INC/EVANSVILLE QUARRY | FLEETWOOD, Berks, PA | Pass | State |
| 2020-09-28 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | BUTLER, Butler, PA | Pass | State |
| 2020-09-28 | MARKWEST LIBERTY MIDSTREAM/DRYER BOOSTER COMP STA | AVELLA, Washington, PA | Pass | State |
| 2020-09-28 | WILLIAMS FIELD SVC CO LLC/SHASKAS COMP STA | MONTROSE, Susquehanna, PA | Pass | State |
| 2020-09-28 | BUCKEYE CARIBBEAN TERM (SHELL CHEM) | YABUCOA, Yabucoa, PR | Pass | U.S. EPA |
| 2020-09-28 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | PINEVILLE, Berkeley, SC | Pass | State |
| 2020-09-28 | GENERAL MILLS OPERATIONS LLC | SUPERIOR, Douglas, WI | Pass | State |
| 2020-09-28 | PIERCE MFG INC — high-priority violation on file | APPLETON, Wood, WI | Pass | State |
| 2020-09-28 | PIERCE MFG INC — high-priority violation on file | APPLETON, Wood, WI | Pass | State |
| 2020-09-28 | BUCKNUM BENTONITE PLANT (TOLSA WYOMING BENTONITE CORP.) | CASPER, Natrona, WY | Pending | State |
| 2020-09-28 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2020-09-27 | MITSUBISHI CEMENT CO — high-priority violation on file | LUCERNE VALLEY, San Bernardino, CA | Pass | Local |
| 2020-09-27 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2020-09-27 | PSEG KEYS ENERGY CENTER | BRANDYWINE, Prince George's, MD | Pending | State |
| 2020-09-27 | OWENS-CORNING STATELINE | JOPLIN, Jasper, MO | Fail | State |
| 2020-09-26 | COLTON POWER, LP | COLTON, San Bernardino, CA | Pass | Local |
| 2020-09-26 | COLTON POWER, LP | COLTON, San Bernardino, CA | Pass | Local |
| 2020-09-26 | CITY OF LAKE WORTH BEACH UTILITIES | LAKE WORTH, Palm Beach, FL | Pass | State |
| 2020-09-26 | CITGO PETROLEUM CORP — high-priority violation on file | LEMONT, Will, IL | Pass | State |
| 2020-09-26 | WESTROCK CP LLC - WEST POINT | WEST POINT, King William, VA | Pass | State |
| 2020-09-26 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | EVANSVILLE, Natrona, WY | Pass | State |
| 2020-09-25 | ATLAS ASPHALT INC. - MTN HOME PLANT | MOUNTAIN HOME, Baxter, AR | Pass | State |
| 2020-09-25 | TAMPA ELECTRIC COMPANY (TEC) | GIBSONTON, Hillsborough, FL | Pass | State |
| 2020-09-25 | CITY OF LAKE WORTH BEACH UTILITIES | LAKE WORTH, Palm Beach, FL | Pass | State |
| 2020-09-25 | DART CONTAINER OF GEORGIA | LITHONIA, DeKalb, GA | Pass | State |
| 2020-09-25 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-25 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-25 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-25 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-25 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-25 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-25 | PAR - HAWAII REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2020-09-25 | HOWARD MATERIALS LLC — high-priority violation on file | INDIANAPOLIS, Marion, IN | Pass | State |
| 2020-09-25 | HOWARD MATERIALS LLC — high-priority violation on file | INDIANAPOLIS, Marion, IN | Pass | State |
| 2020-09-25 | HOWARD MATERIALS LLC — high-priority violation on file | INDIANAPOLIS, Marion, IN | Pass | State |
| 2020-09-25 | HOWARD MATERIALS LLC — high-priority violation on file | INDIANAPOLIS, Marion, IN | Pass | State |
| 2020-09-25 | METALX LLC DBA METALX WABASH | WABASH, Wabash, IN | Pass | State |
| 2020-09-25 | FLINT HILLS RURAL ELECTRIC CO-OP - COUNCIL GROVE E SUBST (AIR) | COUNCIL GROVE, Morris, KS | Pass | State |
| 2020-09-25 | ARBOR HILLS LANDFILL, INC. — high-priority violation on file | NORTHVILLE, Washtenaw, MI | Fail | State |
| 2020-09-25 | OSSIPEE AGGREGATES CORPORATION | OSSIPEE, Carroll, NH | Pass | State |
| 2020-09-25 | COTTON DRAW - MOON COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2020-09-25 | COTTON DRAW - MOON COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2020-09-25 | MONEY GRAHAM CTB | MALAGA, Eddy, NM | Pass | State |
| 2020-09-25 | CERTAINTEED GYPSUM MANUFACTURING, INC. | LAS VEGAS, Clark, NV | Pass | Local |
| 2020-09-25 | GREAT LAKES CRUSHING | AVON, Lorain, OH | Pass | State |
| 2020-09-25 | MIDPOINT MIDSTREAM LLC / PRENTISS COMPRESSOR STATION | SAYRE, Beckham, OK | Pass | State |
| 2020-09-25 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2020-09-25 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2020-09-25 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2020-09-25 | INTERNATIONAL PAPER | SPRINGFIELD, Lane, OR | Pass | Local |
| 2020-09-25 | SONOCO PRODUCTS COMPANY | HARTSVILLE, Darlington, SC | Pass | State |
| 2020-09-25 | EXXONMOBIL BAYTOWN REFINERY — high-priority violation on file | BAYTOWN, Harris, TX | Pass | State |
| 2020-09-25 | GLOBALFOUNDRIES US 2 LLC | ESSEX, Chittenden, VT | Pass | State |
| 2020-09-24 | HILCORP ALASKA, LLC / GRAYLING PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2020-09-24 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2020-09-24 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2020-09-24 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2020-09-24 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2020-09-24 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2020-09-24 | HONDA MANUFACTURING OF ALABAMA LLC | LINCOLN, Talladega, AL | Pass | State |
| 2020-09-24 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2020-09-24 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2020-09-24 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2020-09-24 | LEHIGH CEMENT COMPANY | LEEDS, Jefferson, AL | Pass | Local |
| 2020-09-24 | DESOTO GATHERING COMPANY LLC - YELLOWSTONE CPF-2 | QUITMAN, Van Buren, AR | Pass | State |
| 2020-09-24 | DESOTO GATHERING COMPANY, LLC - YELLOWSTONE CPF-3 | BEE BRANCH, Van Buren, AR | Pass | State |
| 2020-09-24 | EL PASO NATURAL GAS CO - SELIGMAN COMPRESSOR STATION | SELIGMAN, Yavapai, AZ | Pass | State |
| 2020-09-24 | SONOCO PRODUCTS CO | CITY OF INDUSTRY, Los Angeles, CA | Pass | Local |
| 2020-09-24 | SONOCO PRODUCTS CO | CITY OF INDUSTRY, Los Angeles, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, 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.