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 |
|---|---|---|---|---|
| 2024-11-19 | SHELL ROCK SOY PROCESSING | SHELL ROCK, Butler, IA | Pass | State |
| 2024-11-19 | METRO METHANE RECOVERY | MITCHELLVILLE, Polk, IA | Pass | Local |
| 2024-11-19 | METRO METHANE RECOVERY | MITCHELLVILLE, Polk, IA | Pass | Local |
| 2024-11-19 | POSCO AAPC | JEFFERSONVILLE, Clark, IN | Pass | State |
| 2024-11-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2024-11-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2024-11-19 | STEEL DYNAMICS, INC. FLAT ROLL GROUP, BUTLER DIVISION — high-priority violation on file | BUTLER, DeKalb, IN | Pass | State |
| 2024-11-19 | FCA US LLC KOKOMO CASTING PLANT | KOKOMO, Howard, IN | Pass | State |
| 2024-11-19 | DUKE ENERGY INDIANA LLC EDWARDSPORT GENERATING STATION | EDWARDSPORT, Knox, IN | Pass | State |
| 2024-11-19 | ALLIED WASTE SERVICES - BENSON VALLEY LANDFILL | FRANKFORT, Franklin, KY | Pass | State |
| 2024-11-19 | AMCOR PACKAGING, INC. | SHELBYVILLE, Shelby, KY | Pass | State |
| 2024-11-19 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | WESTBROOK, Cumberland, ME | Pass | State |
| 2024-11-19 | MARITIMES & NORTHEAST PIPELINE, L.L.C. | WESTBROOK, Cumberland, ME | Pass | State |
| 2024-11-19 | EMR NORTHERN METAL RECYCLING - BECKER | BECKER, Sherburne, MN | Pass | State |
| 2024-11-19 | HEARTLAND CORN PRODUCTS | WINTHROP, Sibley, MN | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES - JERSEY PLANT (PORT-0746) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES-FREEDOM 2 (PORT-0901) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | CAPITAL QUARRIES-FREEDOM 2 (PORT-0901) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-11-19 | COLUMBIA GULF TRANSMISSION LLC, NEW ALBANY COMPRESSOR STATION | NEW ALBANY, Union, MS | Pass | State |
| 2024-11-19 | COLUMBIA GULF TRANSMISSION LLC, NEW ALBANY COMPRESSOR STATION | NEW ALBANY, Union, MS | Pass | State |
| 2024-11-19 | COLUMBIA GULF TRANSMISSION LLC, NEW ALBANY COMPRESSOR STATION | NEW ALBANY, Union, MS | Pass | State |
| 2024-11-19 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2024-11-19 | W.E. PARTNERS II, LLC - LEWISTON WOODVILLE | LEWISTON WOODVILLE, Bertie, NC | Pass | State |
| 2024-11-19 | INGENCO WHOLESALE POWER, LLC - NEW BERN | NEW BERN, Craven, NC | Pass | State |
| 2024-11-19 | CAROLINA STALITE COMPANY | GOLD HILL, Rowan, NC | Pass | State |
| 2024-11-19 | MORRISTOWN MEDICAL CENTER | MORRISTOWN, Morris, NJ | Pass | State |
| 2024-11-19 | MIYAMURA COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2024-11-19 | GIPPLE A CTB | JAL, Lea, NM | Pass | State |
| 2024-11-19 | MERCHANT COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-11-19 | MERCHANT COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2024-11-19 | EL CEDRO COMPRESSOR STATION | NAVAJO DAM, Rio Arriba, NM | Pass | State |
| 2024-11-19 | PABCO GYPSUM | LAS VEGAS, Clark, NV | Pass | Local |
| 2024-11-19 | APEX REGIONAL LANDFILL — high-priority violation on file | LAS VEGAS, Clark, NV | Pass | Local |
| 2024-11-19 | WHEELABRATOR WESTCHESTER, L.P. | PEEKSKILL, Westchester, NY | Pass | State |
| 2024-11-19 | BLUE RACER MIDSTREAM LLC - CARROLL CO FIELD STATION #1 | CARROLLTON, Carroll, OH | Pass | State |
| 2024-11-19 | BLUE RACER MIDSTREAM LLC - CARROLL CO FIELD STATION #1 | CARROLLTON, Carroll, OH | Pass | State |
| 2024-11-19 | BLUE RACER MIDSTREAM LLC - CARROLL CO FIELD STATION #1 | CARROLLTON, Carroll, OH | Pass | State |
| 2024-11-19 | HILCORP ENERGY - ELK RUN AUER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2024-11-19 | HILCORP ENERGY - ELK RUN AUER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2024-11-19 | HILCORP ENERGY - ELK RUN AUER PRODUCTION FACILITY | LISBON, Columbiana, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA, LLC - CASTON 31-11N-7W | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA, LLC - CASTON 31-11N-7W | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA, LLC - CASTON 31-11N-7W | LONDONDERRY, TOWNSHIP OF, Guernsey, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA LLC - WALDO MNR GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA LLC - WALDO MNR GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA LLC - WALDO MNR GR | KIMBOLTON, Guernsey, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA LLC - LAWSON 19-11N-7W | FREEPORT, Harrison, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA LLC - LAWSON 19-11N-7W | FREEPORT, Harrison, OH | Pass | State |
| 2024-11-19 | ASCENT RESOURCES - UTICA LLC - LAWSON 19-11N-7W | FREEPORT, Harrison, OH | Pass | State |
| 2024-11-19 | TAIT ELECTRIC GENERATING STATION | MORAINE, Montgomery, OH | Pass | State |
| 2024-11-19 | BCE MACH LLC / CROOKED NOSE LONE PINE PAD | EL RENO, Canadian, OK | Pass | State |
| 2024-11-19 | ET GATHERING PROCESSING LLC / BISHOP 1 COMPRESSOR STATION | ARNETT, Ellis, OK | Pass | State |
| 2024-11-19 | ET GATHERING PROCESSING LLC / BISHOP 1 COMPRESSOR STATION | ARNETT, Ellis, OK | Pass | State |
| 2024-11-19 | ET GATHERING PROCESSING LLC / LANG COMPRESSOR STATION | PURDY, Garvin, OK | Pass | State |
| 2024-11-19 | ET GATHERING PROCESSING LLC / GRADY GAS PLANT | BRADLEY, Grady, OK | Pass | State |
| 2024-11-19 | ET GATHERING PROCESSING LLC / SOLDIER COMPRESSOR STATION | BRADLEY, Grady, OK | Pass | State |
| 2024-11-19 | ENERFIN GATHERING EAST LLC / DUSTIN COMPRESSOR STATION | DUSTIN, Hughes, OK | Pass | State |
| 2024-11-19 | XTO ENERGY INC / BRALLEY CDP | MADILL, Marshall, OK | Pass | State |
| 2024-11-19 | XTO ENERGY INC / BRALLEY CDP | MADILL, Marshall, OK | Pass | State |
| 2024-11-19 | CHIEF GATHERING LLC/PMG ANNIE WELLPAD | NICHOLSON, Susquehanna, PA | Pass | State |
| 2024-11-19 | TORAY PLASTICS (AMERICA), INC. | NORTH KINGSTOWN, Washington, RI | Pass | State |
| 2024-11-19 | RHODE ISLAND BIOENERGY FACILITY, LLC | JOHNSTON, Providence, RI | Pass | State |
| 2024-11-19 | COMPX SECURITY PRODUCTS DBA COMPX NATIONAL | GREENVILLE, Greenville, SC | Fail | State |
| 2024-11-19 | PETE LIEN & SONS, INC. MAIN PLANT | RAPID CITY, Pennington, SD | Pass | State |
| 2024-11-19 | KOPPERS PERFORMANCE CHEMICAL | MILLINGTON, Shelby, TN | Pass | Local |
| 2024-11-19 | TESORO WEST COAST/FORMER BP AMOCO | SALT LAKE CITY, Salt Lake, UT | N/A | State |
| 2024-11-19 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2024-11-19 | MOLSON COORS USA LLC | MILWAUKEE, Monroe, WI | Pass | State |
| 2024-11-19 | GREDE - REEDSBURG LLC | REEDSBURG, Sawyer, WI | Pass | State |
| 2024-11-19 | COLUMBIA GAS TRANSMISSION, LLC, CEREDO | HUNTINGTON, Wayne, WV | Pass | State |
| 2024-11-19 | COLUMBIA GAS TRANSMISSION, LLC, CEREDO | HUNTINGTON, Wayne, WV | Pass | State |
| 2024-11-19 | RINER STATION (SOUTHERN STAR CENTRAL GAS PIPELINE) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-11-18 | DESOTO GATHERING COMPANY, LLC - SOUTHEAST RAINBOW CPF-1 | BEE BRANCH, Conway, AR | Pass | State |
| 2024-11-18 | DESOTO GATHERING COMPANY LLC - PIKE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2024-11-18 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | ALON BAKERSFIELD REFINING — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-11-18 | ALON BAKERSFIELD REFINING — 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.