EPA Air · stack tests by year
Air-emissions stack tests in 2024
- 39,252Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2024
- California 18,905
- Ohio 2,721
- Oklahoma 1,804
- Indiana 1,704
- New Mexico 1,428
- Florida 1,427
- Wyoming 1,285
- Georgia 1,104
- Pennsylvania 905
- Alabama 721
- Arkansas 569
- Missouri 539
- Iowa 464
- Mississippi 437
- Colorado 400
- Washington 338
- Texas 271
- Wisconsin 269
- North Carolina 254
- Minnesota 250
- West Virginia 230
- South Carolina 223
- Kentucky 218
- Delaware 185
- Montana 180
- Michigan 159
- Virginia 159
- Alaska 158
- Utah 157
- Tennessee 155
- Nebraska 150
- North Dakota 138
- Arizona 126
- Connecticut 122
- New York 115
- Maine 114
- Louisiana 113
- Illinois 109
- Idaho 91
- Nevada 88
- Hawaii 67
- Kansas 64
- New Hampshire 61
- South Dakota 59
- Maryland 58
- Massachusetts 52
- Oregon 35
- Rhode Island 29
- District of Columbia 25
- New Jersey 8
- Puerto Rico 5
- Vermont 4
Other years
Air-emissions stack tests recorded in 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-12-03 | EASTERN GAS TRANS & STORAGE INC/CENTRE COMP STA | PLEASANT GAP, Centre, PA | Pass | State |
| 2024-12-03 | NFG MIDSTREAM TROUT RUN LLC/TROUT RUN MTN COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2024-12-03 | EXPAND OPERATING LLC/MCENANEY BRA PAD | NEW ALBANY, Bradford, PA | Pass | State |
| 2024-12-03 | RI DEPT.OF ADMINISTRATION,PASTORE CENTER | CRANSTON, Providence, RI | Fail | State |
| 2024-12-03 | SANTEE COOPER CROSS GENERATING STATION — high-priority violation on file | PINEVILLE, Berkeley, SC | Pass | State |
| 2024-12-03 | CYTEC ENGINEERED MATERIALS INC | PIEDMONT, Greenville, SC | Pass | State |
| 2024-12-03 | CARLEX GLASS AMERICA, LLC - NASHVILLE GLASS PLANT | NASHVILLE, Davidson, TN | Pass | Local |
| 2024-12-03 | TRANSCO COMPRESSOR STATIONS 165 AND 166 | CHATHAM, Pittsylvania, VA | Pass | State |
| 2024-12-03 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-12-03 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-12-03 | GREEN BAY PACKAGING INC - GB MILL DIV | GREEN BAY, Brown, WI | Pass | State |
| 2024-12-03 | ARDAGH GLASS INC — high-priority violation on file | BURLINGTON, Richland, WI | Pass | State |
| 2024-12-02 | MISSION CREEK OPCO, LLC - DORCHEAT GAS PLANT | MAGNOLIA, Columbia, AR | Pass | State |
| 2024-12-02 | DESOTO GATHERING COMPANY, LLC - CADDIS CPF-2 | DAMASCUS, Faulkner, AR | Pass | State |
| 2024-12-02 | DESOTO GATHERING COMPANY, LLC - CADDIS CPF-2 | DAMASCUS, Faulkner, AR | Pass | State |
| 2024-12-02 | DESOTO GATHERING COMPANY, LLC - CADDIS CPF-2 | DAMASCUS, Faulkner, AR | Pass | State |
| 2024-12-02 | PROCTER & GAMBLE | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2024-12-02 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-02 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-02 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-02 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-02 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-02 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-02 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-12-02 | PRATT PAPER (GA), LLC — high-priority violation on file | CONYERS, Rockdale, GA | Pass | State |
| 2024-12-02 | PRATT PAPER (GA), LLC — high-priority violation on file | CONYERS, Rockdale, GA | Pass | State |
| 2024-12-02 | PRATT PAPER (GA), LLC — high-priority violation on file | CONYERS, Rockdale, GA | Pass | State |
| 2024-12-02 | PRATT PAPER (GA), LLC — high-priority violation on file | CONYERS, Rockdale, GA | Pass | State |
| 2024-12-02 | NATURAL GAS PIPELINE OF AMERICA - WILSON STATION 194 (AIR) | WILSON, Ellsworth, KS | Pass | State |
| 2024-12-02 | EBERT CONST (PORTABLE)(AIR) | WAMEGO, Pottawatomie, KS | Pass | State |
| 2024-12-02 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2024-12-02 | XCEL ENERGY - PRAIRIE ISLAND NUCLEAR PLANT | WELCH, Goodhue, MN | Pass | State |
| 2024-12-02 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Fail | State |
| 2024-12-02 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2024-12-02 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2024-12-02 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2024-12-02 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Fail | State |
| 2024-12-02 | NIEHS | RESEARCH TRIANGLE PARK, Durham, NC | Pass | State |
| 2024-12-02 | NC DOA CENTRAL HEATING PLANT | RALEIGH, Wake, NC | Pass | State |
| 2024-12-02 | NC DOA CENTRAL HEATING PLANT | RALEIGH, Wake, NC | Pass | State |
| 2024-12-02 | DARK STAR COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-12-02 | DARK STAR COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-12-02 | DARK STAR COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-12-02 | PLANTVIEW COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-12-02 | SEVERUS COMPRESSOR STATION | MONUMENT, Lea, NM | Pass | State |
| 2024-12-02 | EOG - GUNSLINGER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-12-02 | EOG - GUNSLINGER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2024-12-02 | MULVA MANHANDS C CTB | JAL, Lea, NM | Pass | State |
| 2024-12-02 | COBRA COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2024-12-02 | BCE MACH LLC / PAMUNKEY B PAD | EL RENO, Canadian, OK | Pass | State |
| 2024-12-02 | CONTINENTAL RESOURCES / DYER 3 4 30 31XHW JACQUEZ 6 19 18XHS | TABLER, Grady, OK | Pass | State |
| 2024-12-02 | CONTINENTAL RESOURCES / RK MORRIS 5 20 17XHW | ALEX, Grady, OK | Pass | State |
| 2024-12-02 | CONTINENTAL RESOURCES / HEALEY 2 13 12XHW | TABLER, Grady, OK | Pass | State |
| 2024-12-02 | REGENCY MARCELLUS GAS GATHERING LLC/QUAKER STATE RD COMP STA | MONTOURSVILLE, Lycoming, PA | Pass | State |
| 2024-12-02 | EXPAND OPERATING LLC/JOEGUSWA WELL PAD | DUSHORE, Sullivan, PA | Pass | State |
| 2024-12-02 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-12-02 | EQT XL MIDSTREAM OPERATING LLC, LEGACY CONDENSATE PAD | PROCTOR, Marshall, WV | Pass | State |
| 2024-12-01 | TRELLEBORG COATED SYSTEMS US, INC. | RUTHERFORDTON, Rutherford, NC | Pass | State |
| 2024-12-01 | TRELLEBORG COATED SYSTEMS US, INC. | RUTHERFORDTON, Rutherford, NC | Pass | State |
| 2024-11-30 | BLUESCOPE COATED PRODUCTS LLC | MIDDLETOWN, Butler, OH | Pass | State |
| 2024-11-29 | DOWN EAST EMULSIONS, LIMITED LIABILITY COMPANY | BANGOR, Penobscot, ME | Pass | State |
| 2024-11-27 | DAIKIN AMERICA INC | DECATUR, Morgan, AL | Pass | State |
| 2024-11-27 | ME GLOBAL | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2024-11-27 | PRAIRIE OPERATING CO - REEMAN PAD | EATON AREA, Weld, CO | Pass | State |
| 2024-11-27 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-11-27 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-11-27 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-11-27 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-11-27 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-11-27 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-11-27 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2024-11-27 | GRAIN PROCESSING CORPORATION - GRINNELL | GRINNELL, Poweshiek, IA | Pass | State |
| 2024-11-27 | BURKE CORP | NEVADA, Story, IA | Pass | State |
| 2024-11-27 | BATTERY BUILDERS LLC — high-priority violation on file | NAPERVILLE, Will, IL | Pass | State |
| 2024-11-27 | INDUSTRIAL DIELECTRICS INCORPORATED DBA IDI COMPOSITES INTER — high-priority violation on file | NOBLESVILLE, Hamilton, IN | Pass | State |
| 2024-11-27 | INDUSTRIAL DIELECTRICS INCORPORATED DBA IDI COMPOSITES INTER — high-priority violation on file | NOBLESVILLE, Hamilton, IN | Pass | State |
| 2024-11-27 | INDUSTRIAL DIELECTRICS INCORPORATED DBA IDI COMPOSITES INTER — high-priority violation on file | NOBLESVILLE, Hamilton, IN | Pass | State |
| 2024-11-27 | INDUSTRIAL DIELECTRICS INCORPORATED DBA IDI COMPOSITES INTER — high-priority violation on file | NOBLESVILLE, Hamilton, IN | Pass | State |
| 2024-11-27 | MULVANE MUN. POWER PLANT #2 (AIR) | MULVANE, Sedgwick, KS | Pass | State |
| 2024-11-27 | NASHUA, CITY OF - WASTEWATER TREATMENT FACILITY | NASHUA, Hillsborough, NH | Pass | State |
| 2024-11-27 | CAVERN COMPRESSOR STATION | WHITES CITY, Eddy, NM | Pass | State |
| 2024-11-27 | PERSEUS COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-11-27 | PERSEUS COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-11-27 | BCE MACH LLC / HAMMERHEAD BIA 20 15N 10W 5MH PAD | GREENFIELD, Blaine, OK | Pass | State |
| 2024-11-27 | DCP OPERATING CO LP / STRAIGHT COMPRESSOR STATION | GUYMON, Texas, OK | Pass | State |
| 2024-11-27 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2024-11-26 | THE WESTERVELT COMPANY | MOUNDVILLE, Hale, AL | Pass | State |
| 2024-11-26 | THE WESTERVELT COMPANY | MOUNDVILLE, Hale, AL | Pass | State |
| 2024-11-26 | WESTROCK COMPANY, LLC | STEVENSON, Jackson, AL | Pass | State |
| 2024-11-26 | WESTROCK COMPANY, LLC | STEVENSON, Jackson, AL | Pass | State |
| 2024-11-26 | ARKANSAS BIOENERGY, LLC - RUSSELLVILLE | RUSSELLVILLE, Pope, AR | Pass | State |
| 2024-11-26 | MOSS LANDING POWER COMPANY LLC (FRMLY DYNEGY MOSS LANDING LLC) | MOSS LANDING, Monterey, CA | Pass | Local |
| 2024-11-26 | TAFT PRODUCTION CO. | TAFT, Kern, CA | Pass | Local |
| 2024-11-26 | TAFT PRODUCTION CO. | TAFT, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-26 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-26 | OMNI SHOREHAM HOTEL | WASHINGTON, District of Columbia, DC | Pass | State |
| 2024-11-26 | OMNI SHOREHAM HOTEL | WASHINGTON, District of Columbia, DC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.