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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their 2024 stack tests. Nationwide, 39,252 stack tests were recorded in 2024.