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 |
|---|---|---|---|---|
| 2020-10-20 | CARMEUSE LIME, INC. - MAPLE GROVE OPERATIONS — high-priority violation on file | BETTSVILLE, Seneca, OH | Pass | State |
| 2020-10-20 | CARMEUSE LIME, INC. - MAPLE GROVE OPERATIONS — high-priority violation on file | BETTSVILLE, Seneca, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | OHIO MIDSTREAM PARTNERS LLC THATCHER COMPRESSOR STATION | JACOBSBURG, Belmont, OH | Pass | State |
| 2020-10-20 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | ADENA, Jefferson, OH | Pass | State |
| 2020-10-20 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | ADENA, Jefferson, OH | Pass | State |
| 2020-10-20 | ASCENT RESOURCES - UTICA LLC - RECTOR MTP JF WELLPAD | ADENA, Jefferson, OH | Pass | State |
| 2020-10-20 | ASCENT RESOURCES - UTICA LLC - WILMA WRN JF | RAYLAND, Jefferson, OH | Pass | State |
| 2020-10-20 | ASCENT RESOURCES - UTICA LLC - WILMA WRN JF | RAYLAND, Jefferson, OH | Pass | State |
| 2020-10-20 | ASCENT RESOURCES - UTICA LLC - WILMA WRN JF | RAYLAND, Jefferson, OH | Pass | State |
| 2020-10-20 | TOM STACK LLC / COMMUNITY COMPRESSOR STATION | OMEGA, Blaine, OK | Pass | State |
| 2020-10-20 | TOM STACK LLC / COMMUNITY COMPRESSOR STATION | OMEGA, Blaine, OK | Pass | State |
| 2020-10-20 | DEVON ENERGY PRODUCTION CO LP / CHISHOLM TRAIL 19 18 16N 9W 1HX | OMEGA, Blaine, OK | Pass | State |
| 2020-10-20 | ONEOK FIELD SERVICES CO LLC / PAYNE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2020-10-20 | ONEOK FIELD SERVICES CO LLC / PAYNE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2020-10-20 | ET GATHERING PROCESSING LLC / MURRAY COMPRESSOR STATION | PURDY, Garvin, OK | Pass | State |
| 2020-10-20 | ET GATHERING PROCESSING LLC / LINDSAY COMPRESSOR STATION | RUSH SPRINGS, Grady, OK | Pass | State |
| 2020-10-20 | CONTINENTAL RESOURCES / LAMBRECHT 2 17 20XHW | MIDDLEBERG, Grady, OK | Pass | State |
| 2020-10-20 | CONTINENTAL RESOURCES / LAMBRECHT 2 17 20XHW | MIDDLEBERG, Grady, OK | Pass | State |
| 2020-10-20 | DEVON ENERGY PRODUCTION CO LP / PRIVOTT 17 20 16N 9W 1HX | OMEGA, Kingfisher, OK | Pass | State |
| 2020-10-20 | BCE MACH III LLC / SAWGRASS 1705 8 32MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2020-10-20 | PONDEROSA GATHERING LLC / PONDEROSA COMPRESSOR STATION 2 | QUINTON, Pittsburg, OK | Pass | State |
| 2020-10-20 | PONDEROSA GATHERING LLC / PONDEROSA COMPRESSOR STATION 2 | QUINTON, Pittsburg, OK | Pass | State |
| 2020-10-20 | ET GATHERING PROCESSING LLC / ROBBERSON COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2020-10-20 | EQM GATHERING OPCO LLC/TERRA COMP STA | PLUM CREEK, Armstrong, PA | Pass | State |
| 2020-10-20 | MAINESBURG GS LP/WELLS COMP STA | COVINGTON, Tioga, PA | Pass | State |
| 2020-10-20 | BLACK HILLS POWER, INC. (LANGE) | RAPID CITY, Pennington, SD | Pass | State |
| 2020-10-20 | BFI WASTE SYSTEMS OF NORTH AMERICA | MEMPHIS, Shelby, TN | Pass | Local |
| 2020-10-20 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | Pass | State |
| 2020-10-20 | IRON MOUNTAIN INFORMATION MANAGEMENT LLC — high-priority violation on file | MANASSAS, Prince William, VA | Pass | State |
| 2020-10-20 | SEH AMERICA | VANCOUVER, Clark, WA | Pass | Local |
| 2020-10-20 | LANXESS CORPORATION — high-priority violation on file | KALAMA, Cowlitz, WA | Pass | Local |
| 2020-10-20 | PUGET SOUND ENERGY (WA NATURAL GAS) | CHEHALIS, Lewis, WA | Pass | Local |
| 2020-10-20 | PUGET SOUND ENERGY (WA NATURAL GAS) | CHEHALIS, Lewis, WA | Pass | Local |
| 2020-10-20 | COATING PLACE LLC — high-priority violation on file | VERONA, Dane, WI | N/A | State |
| 2020-10-20 | CASHTON MUNICIPAL LIGHT AND WATER DEPART | CASHTON, Monroe, WI | Fail | State |
| 2020-10-20 | KENTUCKY POWER COMPANY, MITCHELL PLANT | MOUNDSVILLE, Marshall, WV | Pass | State |
| 2020-10-20 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2020-10-19 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-10-19 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-10-19 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-10-19 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-10-19 | FLYWHEEL ENERGY COMPANY - PUMA NORTH CPF-1 | WILBURN, Cleburne, AR | Pass | State |
| 2020-10-19 | DESOTO GATHERING COMPANY, LLC - NORTHWEST CHARLEY CPF-2 | GREERS FERRY, Cleburne, AR | Pass | State |
| 2020-10-19 | ORMOND BEACH GENERATING STATION | OXNARD, Ventura, CA | Pass | Local |
| 2020-10-19 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2020-10-19 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2020-10-19 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2020-10-19 | CENTRAL MATERIALS COMPANY, INC. | LECANTO, Citrus, FL | Pass | State |
| 2020-10-19 | AMERITERPENES, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2020-10-19 | AMERITERPENES, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2020-10-19 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2020-10-19 | PELICO PIPELINE LLC - SECTION 35 COMPRESSOR STATION | SAILES, Bienville, LA | Pass | State |
| 2020-10-19 | COURTNEY RIDGE LANDFILL, LLC | SUGAR CREEK, Jackson, MO | Pass | State |
| 2020-10-19 | GREENLEAF CO2 SOLUTIONS LLC, WEST YELLOW CREEK COMPRESSOR STATION — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2020-10-19 | GREENLEAF CO2 SOLUTIONS LLC, WEST YELLOW CREEK COMPRESSOR STATION — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2020-10-19 | GREENLEAF CO2 SOLUTIONS LLC, WEST YELLOW CREEK COMPRESSOR STATION — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2020-10-19 | BUCKEYE PORT READING TERMINAL LLC. | WOODBRIDGE, Middlesex, NJ | Pass | State |
| 2020-10-19 | MATADOR - SCOTT WALKER FACILITY | LOVING, Eddy, NM | Pass | State |
| 2020-10-19 | WHEELABRATOR WESTCHESTER, L.P. | PEEKSKILL, Westchester, NY | Pass | State |
| 2020-10-19 | OHIO MIDSTREAM PARTNERS SAND HILLS COMPRESSOR STATION | NEFFS, Belmont, OH | Pass | State |
| 2020-10-19 | OHIO MIDSTREAM PARTNERS SAND HILLS COMPRESSOR STATION | NEFFS, Belmont, OH | Pass | State |
| 2020-10-19 | OHIO MIDSTREAM PARTNERS SAND HILLS COMPRESSOR STATION | NEFFS, Belmont, OH | Pass | State |
| 2020-10-19 | ONEOK FIELD SERVICES CO LLC / PAYNE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2020-10-19 | ONEOK FIELD SERVICES CO LLC / PAYNE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2020-10-19 | ONEOK FIELD SERVICES CO LLC / PAYNE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2020-10-19 | VALIDUS ENERGY II MIDCON LLC / REBA JO 6 13 24XHM 7 13 24XHM | WATONGA, Blaine, OK | Pass | State |
| 2020-10-19 | VALIDUS ENERGY II MIDCON LLC / REBA JO 4 13 24XHM 5 13 24XHM | WATONGA, Blaine, OK | Pass | State |
| 2020-10-19 | BLANCHARD REFINING GALVESTON BAY REFINERY — high-priority violation on file | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-10-19 | BLANCHARD REFINING GALVESTON BAY REFINERY — high-priority violation on file | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-10-19 | BLANCHARD REFINING GALVESTON BAY REFINERY — high-priority violation on file | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-10-19 | EQUISTAR CHEMICALS LA PORTE COMPLEX — high-priority violation on file | LA PORTE, Harris, TX | Pass | State |
| 2020-10-19 | EQUISTAR CHEMICALS LA PORTE COMPLEX — high-priority violation on file | LA PORTE, Harris, TX | Pass | State |
| 2020-10-19 | EQUISTAR CHEMICALS LA PORTE COMPLEX — high-priority violation on file | LA PORTE, Harris, TX | Pass | State |
| 2020-10-19 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2020-10-19 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2020-10-19 | PORT ARTHUR REFINERY — high-priority violation on file | PORT ARTHUR, Jefferson, TX | Pass | State |
| 2020-10-19 | SABINE COGENERATION FACILITY | ORANGE, Orange, TX | Pass | State |
| 2020-10-19 | PUGET SOUND ENERGY (WA NATURAL GAS) | CHEHALIS, Lewis, WA | Pass | Local |
| 2020-10-17 | HILCORP ALASKA, LLC / FLOW STATION #2 (FS 2) | NORTH SLOPE BOROUGH, North Slope, AK | Pass | State |
| 2020-10-16 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-10-16 | CHEVRON USA INC- HEAVY OIL — 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.