EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-10-25 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-25 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-25 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-25 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-25 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-25 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2023-10-25 | CLEARWATER PAPER CORPORATION - AUGUSTA MILL — high-priority violation on file | AUGUSTA, Richmond, GA | Pass | State |
| 2023-10-25 | ZCOLO LLC - OAK BROOK | OAK BROOK, DuPage, IL | Pass | State |
| 2023-10-25 | ALTO PEKIN LLC | PEKIN, Tazewell, IL | Pass | State |
| 2023-10-25 | ADM GRAIN COMPANY LOGANSPORT TERMINAL | LOGANSPORT, Cass, IN | Pass | State |
| 2023-10-25 | ADM GRAIN COMPANY LOGANSPORT TERMINAL | LOGANSPORT, Cass, IN | Pass | State |
| 2023-10-25 | ADM GRAIN COMPANY LOGANSPORT TERMINAL | LOGANSPORT, Cass, IN | Pass | State |
| 2023-10-25 | AES INDIANA PETERSBURG GENERATING STATION — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2023-10-25 | AES INDIANA PETERSBURG GENERATING STATION — high-priority violation on file | PETERSBURG, Pike, IN | Pass | State |
| 2023-10-25 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2023-10-25 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2023-10-25 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2023-10-25 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2023-10-25 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2023-10-25 | CLEVELAND-CLIFFS STEEL CORPORATION, ROCKPORT WORKS | ROCKPORT, Spencer, IN | Pass | State |
| 2023-10-25 | MISSISSIPPI LIME CO - VERONA PLANT | VERONA, Gallatin, KY | Pass | State |
| 2023-10-25 | UNITED STATES GYPSUM COMPANY | RIVER ROUGE, Wayne, MI | Pass | State |
| 2023-10-25 | MICHIGAN STATE UNIVERSITY | EAST LANSING, Ingham, MI | Pass | State |
| 2023-10-25 | AMERICAN CRYSTAL SUGAR - MOORHEAD — high-priority violation on file | MOORHEAD, Clay, MN | Pass | State |
| 2023-10-25 | MET COUNCIL - SENECA WWTP | EAGAN, Dakota, MN | Pass | State |
| 2023-10-25 | ANDERSEN CORPORATION | BAYPORT, Washington, MN | Pass | State |
| 2023-10-25 | SOUTHERN STAR CENTRAL PIPELINE-PECULIAR | PECULIAR, Cass, MO | Pass | State |
| 2023-10-25 | SOUTHERN STAR CENTRAL PIPELINE-PECULIAR | PECULIAR, Cass, MO | Pass | State |
| 2023-10-25 | SOUTHERN STAR CENTRAL PIPELINE-PECULIAR | PECULIAR, Cass, MO | Pass | State |
| 2023-10-25 | BLACK OAK POWER PRODUCERS LLC | HARTVILLE, Wright, MO | Pass | State |
| 2023-10-25 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-10-25 | EP ENGINEERED CLAYS CORPORATION — high-priority violation on file | JACKSON, Hinds, MS | Pass | State |
| 2023-10-25 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pending | State |
| 2023-10-25 | 3M PITTSBORO - INDUSTRIAL MINERAL PRODUCTS | MONCURE, Chatham, NC | Pending | State |
| 2023-10-25 | ENVIVA AHOSKIE | AHOSKIE, Hertford, NC | Pass | State |
| 2023-10-25 | INGREDION, INC. — high-priority violation on file | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2023-10-25 | GREEN PLAINS CENTRAL CITY LLC — high-priority violation on file | CENTRAL CITY, Merrick, NE | Pass | State |
| 2023-10-25 | GREEN PLAINS CENTRAL CITY LLC — high-priority violation on file | CENTRAL CITY, Merrick, NE | Fail | State |
| 2023-10-25 | TURBOCAM, INC. | BARRINGTON, Strafford, NH | Pass | State |
| 2023-10-25 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-25 | VALDEZ BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-25 | BRIDGE STATE 29 CTB#1 | EUNICE, Lea, NM | Pass | State |
| 2023-10-25 | GOLD QUARRY OPERATIONS — high-priority violation on file | CARLIN, Eureka, NV | Pass | State |
| 2023-10-25 | TS POWER PLANT | DUNPHY, Eureka, NV | Fail | State |
| 2023-10-25 | APEX REGIONAL LANDFILL — high-priority violation on file | LAS VEGAS, Clark, NV | Pass | Local |
| 2023-10-25 | HOLLINGSWORTH & VOSE-EASTON MILL | EASTON, Washington, NY | Pass | State |
| 2023-10-25 | NOVELIS CORPORATION | SCRIBA, Oswego, NY | Pass | State |
| 2023-10-25 | TRINITY PACKAGING - A DIVISION OF PROAMPAC | CHEEKTOWAGA, Erie, NY | Pass | State |
| 2023-10-25 | JOHNS MANVILLE | DEFIANCE, Defiance, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | BLUE RACER MIDSTREAM, LLC - BORTON STATION | QUAKER CITY, Guernsey, OH | Pass | State |
| 2023-10-25 | PEOPLES ELECTRIC COOP / TARGA — high-priority violation on file | CENTRAHOMA, Coal, OK | Pass | State |
| 2023-10-25 | PEOPLES ELECTRIC COOP / TARGA — high-priority violation on file | CENTRAHOMA, Coal, OK | Pass | State |
| 2023-10-25 | FORESTER MIDSTREAM LLC / ALEDO TAYLOR AMINE PLANT | ALEDO, Dewey, OK | Pass | State |
| 2023-10-25 | EOG RESOURCES INC / GALAXY CTB PRODUCTION FACILITY | TUTTLE, Grady, OK | Pass | State |
| 2023-10-25 | PETROLINK ENERGY LLC / EAST CHANDLER COMPRESSOR STATION | CHANDLER, Lincoln, OK | Pass | State |
| 2023-10-25 | ET GATHERING PROCESSING LLC / HOOK ECHO COMPRESSOR FACILITY | BRADLEY, McClain, OK | Pass | State |
| 2023-10-25 | ET GATHERING PROCESSING LLC / HOOK ECHO COMPRESSOR FACILITY | BRADLEY, McClain, OK | Pass | State |
| 2023-10-25 | ONEOK FIELD SERVICES CO LLC / WICKHAM LATERAL COMPRESSOR STATION | LEEDEY, Roger Mills, OK | Pass | State |
| 2023-10-25 | PA GRAIN PROCESSING LLC/CLEARFIELD BORO ETHANOL PROD PLT — high-priority violation on file | CLEARFIELD, Clearfield, PA | Pass | State |
| 2023-10-25 | NFG MIDSTREAM CLERMONT LLC/CLERMONT EAST COMP STA | WILCOX, McKean, PA | Pass | State |
| 2023-10-25 | CNX MIDSTREAM OPR CO LLC/BUCKLAND COMP STA | WIND RIDGE, Greene, PA | Pass | State |
| 2023-10-25 | CHILDRENS HOSP OF PHILA/ PHILA | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2023-10-25 | CONSTANTIA BLYTHEWOOD LLC — high-priority violation on file | BLYTHEWOOD, Richland, SC | Pending | State |
| 2023-10-25 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - ABERDEEN | ABERDEEN, Brown, SD | Pass | State |
| 2023-10-25 | TENNESSEE VALLEY AUTHORITY - GALLATIN FOSSIL PLANT | GALLATIN, Sumner, TN | Pass | State |
| 2023-10-25 | AB MAURI FOOD INC | MEMPHIS, Shelby, TN | Pass | Local |
| 2023-10-25 | EXXONMOBIL BEAUMONT REFINERY — high-priority violation on file | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-10-25 | EXXONMOBIL BEAUMONT REFINERY — high-priority violation on file | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-10-25 | EXXONMOBIL BEAUMONT REFINERY — high-priority violation on file | BEAUMONT, Jefferson, TX | Pass | State |
| 2023-10-25 | KINDER MORGAN LLC - ALTAMONT EAST | ALTAMONT, Duchesne, UT | Pass | State |
| 2023-10-25 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2023-10-25 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2023-10-25 | COMPASS MINERALS | UTAH, Undetermined, UT | Pending | State |
| 2023-10-25 | COVENTRY CLEAN ENERGY CORPORATION — high-priority violation on file | COVENTRY, Orleans, VT | Pass | State |
| 2023-10-25 | WMWI - METRO RECYCLING & DISPOSAL | FRANKLIN, Monroe, WI | Pass | State |
| 2023-10-25 | WMWI - METRO RECYCLING & DISPOSAL | FRANKLIN, Monroe, WI | Pass | State |
| 2023-10-25 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2023-10-24 | WEST FRASER HUGULEY | HUGULEY, Chambers, AL | Fail | State |
| 2023-10-24 | TVA — high-priority violation on file | TUSCUMBIA, Colbert, AL | Pass | State |
| 2023-10-24 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2023-10-24 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2023-10-24 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2023-10-24 | W&T OFFSHORE, INC. | MOBILE BAY, Mobile, AL | Pass | State |
| 2023-10-24 | AMRIZE CEMENT, INC. | THEODORE, Mobile, AL | Pass | State |
| 2023-10-24 | HONDA MANUFACTURING OF ALABAMA LLC | LINCOLN, Talladega, AL | Pass | State |
| 2023-10-24 | ALABAMA POWER COMPANY (MILLER POWER PLANT) | QUINTON, Jefferson, AL | Pass | Local |
| 2023-10-24 | QG PRINTING CORP — high-priority violation on file | RIVERSIDE, Riverside, CA | Pass | Local |
| 2023-10-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-10-24 | 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.