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 |
|---|---|---|---|---|
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | WOODLAND GENERATION STATION | MODESTO, Stanislaus, CA | Pass | Local |
| 2024-09-17 | CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file | LYONS AREA, Boulder, CO | Pass | State |
| 2024-09-17 | WASTE MGMT - NORTH WELD LANDFILL | SEVERANCE AREA, Weld, CO | Pass | State |
| 2024-09-17 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-09-17 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-09-17 | DELAWARE CITY REFINING CO-DELAWARE CITY — high-priority violation on file | DELAWARE CITY, New Castle, DE | Pass | State |
| 2024-09-17 | DUKE ENERGY FLORIDA, LLC | CRYSTAL RIVER, Citrus, FL | Pass | State |
| 2024-09-17 | DART CONTAINER CORPORATION OF FLORIDA | PLANT CITY, Hillsborough, FL | Pass | State |
| 2024-09-17 | SEMINOLE ELECTRIC COOPERATIVE, INC. | PALATKA, Putnam, FL | Pass | State |
| 2024-09-17 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | N/A | State |
| 2024-09-17 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2024-09-17 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2024-09-17 | INTERNATIONAL PAPER COMPANY - PORT WENTWORTH MILL | PORT WENTWORTH, Chatham, GA | Pass | State |
| 2024-09-17 | MCINTOSH COMBUSTION TURBINE - ELECTRIC GENERATING PLANT | RINCON, Effingham, GA | Pass | State |
| 2024-09-17 | MCINTOSH COMBUSTION TURBINE - ELECTRIC GENERATING PLANT | RINCON, Effingham, GA | Pass | State |
| 2024-09-17 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-17 | IDEAL PELLETS | OGLETHORPE, Macon, GA | Pass | State |
| 2024-09-17 | AMCOR FLEXIBLES NORTH AMERICA | CENTERVILLE (HISTORICAL), Appanoose, IA | Pass | State |
| 2024-09-17 | WESTERN IOWA ENERGY LLC | WALL LAKE, Sac, IA | Pass | State |
| 2024-09-17 | GENERAL MILLS OPERATIONS, INC. — high-priority violation on file | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2024-09-17 | ITAFOS CONDA LLC - TV FACILITY | SODA SPRINGS, Caribou, ID | Pass | State |
| 2024-09-17 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-17 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-17 | GRAIN PROCESSING CORPORATION — high-priority violation on file | WASHINGTON, Daviess, IN | Pass | State |
| 2024-09-17 | GARFIELD FACILITY LLC — high-priority violation on file | MUNCIE, Delaware, IN | Pass | State |
| 2024-09-17 | GARFIELD FACILITY LLC — high-priority violation on file | MUNCIE, Delaware, IN | Pass | State |
| 2024-09-17 | GARFIELD FACILITY LLC — high-priority violation on file | MUNCIE, Delaware, IN | Pass | State |
| 2024-09-17 | AMSTED RAIL COMPANY INC | HAMMOND, Lake, IN | Pass | State |
| 2024-09-17 | AMSTED RAIL COMPANY INC | HAMMOND, Lake, IN | Pass | State |
| 2024-09-17 | AMSTED RAIL COMPANY INC | HAMMOND, Lake, IN | Pass | State |
| 2024-09-17 | AMSTED RAIL COMPANY INC | HAMMOND, Lake, IN | Pass | State |
| 2024-09-17 | HARSHMAN CONST. - HOWARD QUARRY (AIR) | HOWARD, Elk, KS | Pass | State |
| 2024-09-17 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2024-09-17 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pending | State |
| 2024-09-17 | DIVERSIFIED MIDSTREAM LLC - MYRA COMPRESSOR STATION | MYRA, Pike, KY | Pass | State |
| 2024-09-17 | DIVERSIFIED MIDSTREAM LLC - MYRA COMPRESSOR STATION | MYRA, Pike, KY | Pass | State |
| 2024-09-17 | BUCKEYE TERMINALS LLC | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2024-09-17 | MERCER 16-21 HC #1-ALT & MERCER 16-21-28 HC #1-ALT & #2-ALT TANK BATTERY - ELM G | ELM GROVE, Bossier, LA | Pass | State |
| 2024-09-17 | MERCER 16-21 HC #1-ALT & MERCER 16-21-28 HC #1-ALT & #2-ALT TANK BATTERY - ELM G | ELM GROVE, Bossier, LA | Pass | State |
| 2024-09-17 | MERCER 16-21 HC #1-ALT & MERCER 16-21-28 HC #1-ALT & #2-ALT TANK BATTERY - ELM G | ELM GROVE, Bossier, LA | Pass | State |
| 2024-09-17 | ENTEGRIS INC | BILLERICA, Middlesex, MA | Pass | State |
| 2024-09-17 | EMERY LEE AND SONS INCORPORATED | EAST MILLINOCKET, Penobscot, ME | Fail | State |
| 2024-09-17 | WASTE MANAGEMENT DISPOSAL SERVICES OF MAINE, INC. — high-priority violation on file | NORRIDGEWOCK, Somerset, ME | Pass | State |
| 2024-09-17 | ERVIN AMASTEEL DIVISION | ADRIAN, Lenawee, MI | Pass | State |
| 2024-09-17 | SOUTHEAST BERRIEN COUNTY LANDFILL AUTHORITY | NILES, Berrien, MI | Pass | State |
| 2024-09-17 | GRAND MARAIS PUBLIC UTILITIES COMMISSION | GRAND MARAIS, Cook, MN | Pass | State |
| 2024-09-17 | ADM - MARSHALL | MARSHALL, Lyon, MN | Pass | State |
| 2024-09-17 | DENCO II LLC | MORRIS, Stevens, MN | Pass | State |
| 2024-09-17 | ANDERSEN CORPORATION | BAYPORT, Washington, MN | Pass | State |
| 2024-09-17 | AUDUBON MATERIALS, LLC - SUGAR CREEK PLANT | SUGAR CREEK, Jackson, MO | Pass | State |
| 2024-09-17 | MID AMERICA PIPELINE COMPANY, L.L.C. | CHILLICOTHE, Livingston, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
| 2024-09-17 | NORRIS QUARRIES LLC PLANT 81 (PORT-0512) | PORTABLE, Undetermined, MO | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.