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 |
|---|---|---|---|---|
| 2024-09-20 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-20 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-20 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-20 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-20 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-20 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-20 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-20 | AL SANDERSVILLE | WARTHEN, Washington, GA | Pass | State |
| 2024-09-20 | AL SANDERSVILLE | WARTHEN, Washington, GA | Pass | State |
| 2024-09-20 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2024-09-20 | AMSTED RAIL COMPANY, INC | KEOKUK, Lee, IA | Pass | State |
| 2024-09-20 | HOT MIX MATERIALS INC. | KANSAS CITY, Jackson, MO | Pass | State |
| 2024-09-20 | CITY OF HIGH POINT - EASTSIDE WASTEWATER TREATMENT PLANT | JAMESTOWN, Guilford, NC | Pass | State |
| 2024-09-20 | NE RENEWABLE POWER SPRINGFIELD | SPRINGFIELD, Sullivan, NH | Pass | State |
| 2024-09-20 | NE RENEWABLE POWER SPRINGFIELD | SPRINGFIELD, Sullivan, NH | Pass | State |
| 2024-09-20 | EIDER COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-09-20 | EIDER COMPRESSOR STATION | MALAGA, Lea, NM | Pass | State |
| 2024-09-20 | BARRETT PAVING - MORAINE ASPHALT | MORAINE, Montgomery, OH | Pass | State |
| 2024-09-20 | CF1 (CUYAHOGA FALLS 1) | CUYAHOGA FALLS, Summit, OH | Pass | State |
| 2024-09-20 | CF1 (CUYAHOGA FALLS 1) | CUYAHOGA FALLS, Summit, OH | Pass | State |
| 2024-09-20 | CF1 (CUYAHOGA FALLS 1) | CUYAHOGA FALLS, Summit, OH | Pass | State |
| 2024-09-20 | CF1 (CUYAHOGA FALLS 1) | CUYAHOGA FALLS, Summit, OH | Pass | State |
| 2024-09-20 | CF1 (CUYAHOGA FALLS 1) | CUYAHOGA FALLS, Summit, OH | Pass | State |
| 2024-09-20 | CF1 (CUYAHOGA FALLS 1) | CUYAHOGA FALLS, Summit, OH | Pass | State |
| 2024-09-20 | XTO ENERGY INC / GODDARD 1 20H PRODUCTION SITE | MILL CREEK, Johnston, OK | Pass | State |
| 2024-09-20 | XTO ENERGY INC / WLC 1 12H PRODUCTION SITE | MANNSVILLE, Johnston, OK | Pass | State |
| 2024-09-20 | VALIDUS ENERGY II MIDCON LLC / WILMOTT HERITAGE 2013 7 31MH | FAIRVIEW, Major, OK | Pass | State |
| 2024-09-20 | BANKS CONSTRUCTION COMPANY - NORTH CHARLESTON | NORTH CHARLESTON, Charleston, SC | Pass | State |
| 2024-09-20 | SNYDER GAS PLANT | SNYDER, Scurry, TX | N/A | State |
| 2024-09-20 | SNYDER GAS PLANT | SNYDER, Scurry, TX | N/A | State |
| 2024-09-20 | SNYDER GAS PLANT | SNYDER, Scurry, TX | N/A | State |
| 2024-09-20 | BOEING DEVELOPMENTAL CENTER | TUKWILA, King, WA | Pass | Local |
| 2024-09-20 | BOEING DEVELOPMENTAL CENTER | TUKWILA, King, WA | Pass | Local |
| 2024-09-20 | BOEING DEVELOPMENTAL CENTER | TUKWILA, King, WA | Pass | Local |
| 2024-09-20 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-09-19 | DIBBLE CREEK ROCK LTD / BARBER GREENE ASPHALT PLANT | ANCHORAGE, Anchorage Municipality, AK | Pass | State |
| 2024-09-19 | GAS PROCESSORS, INC. | BROOKLYN, Conecuh, AL | Pass | State |
| 2024-09-19 | SOUTHERN NATURAL GAS | ELMORE, Elmore, AL | Pass | State |
| 2024-09-19 | WESTROCK COMPANY, LLC | STEVENSON, Jackson, AL | Pass | State |
| 2024-09-19 | WESTROCK COMPANY, LLC | STEVENSON, Jackson, AL | Pass | State |
| 2024-09-19 | GRAYSON CARTER & SON CONTRACTING, INC. | ATHENS, Limestone, AL | Pass | State |
| 2024-09-19 | HILCORP ENERGY COMPANY | CREOLA, Mobile, AL | Pass | State |
| 2024-09-19 | HILCORP ENERGY COMPANY | CREOLA, Mobile, AL | Pass | State |
| 2024-09-19 | MPLX TERMINAL LLC | MONTGOMERY, Montgomery, AL | Pass | State |
| 2024-09-19 | JOHNS MANVILLE INC. | PHENIX CITY, Russell, AL | Pass | State |
| 2024-09-19 | JOHNS MANVILLE INC. | PHENIX CITY, Russell, AL | Pass | State |
| 2024-09-19 | JOHNS MANVILLE INC. | PHENIX CITY, Russell, AL | Pass | State |
| 2024-09-19 | APACHE GENERATING STATION | COCHISE, Cochise, AZ | Pass | State |
| 2024-09-19 | EL PASO NATURAL GAS CO - SELIGMAN COMPRESSOR STATION | SELIGMAN, Yavapai, AZ | Pass | State |
| 2024-09-19 | CHEVRON USA | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2024-09-19 | DEMENNO-KERDOON DBA WORLD OIL RECYCLING | COMPTON, Los Angeles, CA | N/A | Local |
| 2024-09-19 | H. J. HEINZ COMPANY, L.P. | ESCALON, San Joaquin, CA | Pass | Local |
| 2024-09-19 | AMRIZE PORTLAND PLANT — high-priority violation on file | FLORENCE 3.8 MI. E OF, Fremont, CO | Pass | State |
| 2024-09-19 | DCP OPERATING CO - O'CONNOR GAS PLANT | KERSEY AREA, Weld, CO | Pass | State |
| 2024-09-19 | DCP OPERATING CO - O'CONNOR GAS PLANT | KERSEY AREA, Weld, CO | Pass | State |
| 2024-09-19 | NAUGATUCK WPCA/POTW | NAUGATUCK (HISTORICAL), New Haven, CT | Pass | State |
| 2024-09-19 | FIRST STATE GENERATION, LLC | WILMINGTON, New Castle, DE | Pass | State |
| 2024-09-19 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2024-09-19 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2024-09-19 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2024-09-19 | KING'S HAWAIIAN BAKERY | FLOWERY BRANCH, Hall, GA | Pass | State |
| 2024-09-19 | KING'S HAWAIIAN BAKERY | FLOWERY BRANCH, Hall, GA | Pass | State |
| 2024-09-19 | AMMERAAL BELTECH | BUFORD, Hall, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-19 | AL SANDERSVILLE | WARTHEN, Washington, GA | Pass | State |
| 2024-09-19 | AL SANDERSVILLE | WARTHEN, Washington, GA | Pass | State |
| 2024-09-19 | AL SANDERSVILLE | WARTHEN, Washington, GA | Pass | State |
| 2024-09-19 | AL SANDERSVILLE | WARTHEN, Washington, GA | Pass | State |
| 2024-09-19 | PAR - REFINERY — high-priority violation on file | KAPOLEI, Honolulu, HI | Pass | State |
| 2024-09-19 | GENERAL MILLS OPERATIONS, INC. — high-priority violation on file | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2024-09-19 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2024-09-19 | KOOTENAI RENEWABLE ENERGY LLC - FIGHTING CREEK | COEUR D'ALENE, Kootenai, ID | Pass | State |
| 2024-09-19 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-09-19 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-09-19 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2024-09-19 | NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC MICHIGAN CITY GE — high-priority violation on file | MICHIGAN CITY, LaPorte, IN | Pass | State |
| 2024-09-19 | NESTLE USA INC | ANDERSON, Madison, IN | Pass | State |
| 2024-09-19 | CHROMASOURCE INCORPORATED | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2024-09-19 | CHROMASOURCE INCORPORATED | COLUMBIA CITY, Whitley, IN | Pass | State |
| 2024-09-19 | KY UTILITIES CO - GHENT STATION | GHENT, Carroll, KY | Pass | State |
| 2024-09-19 | AUBURN ASPHALT, LLC | RICHMOND, Sagadahoc, ME | Fail | State |
| 2024-09-19 | AHJRLLFG LLC | OLD TOWN, Penobscot, ME | Pass | State |
| 2024-09-19 | WORTHEN COATED FABRICS — high-priority violation on file | GRAND RAPIDS, Kent, MI | Pass | State |
| 2024-09-19 | ADM - MARSHALL | MARSHALL, Lyon, MN | Pass | State |
| 2024-09-19 | GLENCOE LIGHT & POWER COMMISSION | GLENCOE, McLeod, MN | Pass | State |
| 2024-09-19 | CHEMOURS COMPANY - FAYETTEVILLE WORKS | FAYETTEVILLE, Bladen, NC | Pending | State |
| 2024-09-19 | 40 LCID, LLC (ACI) | STATESVILLE, Iredell, NC | Fail | State |
| 2024-09-19 | BOOTLEG RIDGE COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-09-19 | DIMENSIONS 6 SECTION 8 GAS SALES COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-19 | MACY J COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-19 | MACY J COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2024-09-19 | ALYSON TB | LA HUERTA, Eddy, NM | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.