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.
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.