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 |
|---|---|---|---|---|
| 2024-10-10 | HOUSE CREEK MAINLINE COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-10-10 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-10-10 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-10-10 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-10 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-10 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-10 | BIG ISLAND MINE & REFINERY (SISECAM WYOMING LLC) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-10-09 | VERTEX REFINING ALABAMA LLC | SARALAND, Mobile, AL | Pass | State |
| 2024-10-09 | ARCOSA LW BR, LLC | LIVINGSTON, Sumter, AL | Pass | State |
| 2024-10-09 | ALABAMA POWER COMPANY (MILLER POWER PLANT) | QUINTON, Jefferson, AL | Pass | Local |
| 2024-10-09 | DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-1 | QUITMAN, Cleburne, AR | Pass | State |
| 2024-10-09 | DESOTO GATHERING COMPANY, LLC - SOUTH RAINBOW | CENTER RIDGE, Conway, AR | Pass | State |
| 2024-10-09 | ABIDE FARMS, LLC | LITTLE ROCK, Pulaski, AR | Pass | State |
| 2024-10-09 | MITSUBISHI CHEMICAL CARBON FIBER AND COMPOSITES — high-priority violation on file | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | AERA ENERGY — high-priority violation on file | COALINGA, Fresno, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CHEVRON USA INC- HEAVY OIL — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2024-10-09 | KRAFT HEINZ FOODS CO | TULARE, Tulare, CA | Fail | Local |
| 2024-10-09 | KRAFT HEINZ FOODS CO | TULARE, Tulare, CA | Fail | Local |
| 2024-10-09 | KRAFT HEINZ FOODS CO | TULARE, Tulare, CA | Fail | Local |
| 2024-10-09 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Pass | State |
| 2024-10-09 | FLORIDA POWER & LIGHT COMPANY | PACE, Santa Rosa, FL | Pass | State |
| 2024-10-09 | CENTERS FOR DISEASE CONTROL AND PREVENTION (CDC) | ATLANTA, DeKalb, GA | Pass | State |
| 2024-10-09 | MARTA - LAREDO DRIVE CNG STATION | DECATUR, DeKalb, GA | Pass | State |
| 2024-10-09 | BOBBY C. SMITH JR. ENERGY FACILITY | RINCON, Effingham, GA | Pass | State |
| 2024-10-09 | CHEMENCE MEDICAL | ALPHARETTA, Forsyth, GA | Pass | State |
| 2024-10-09 | CHEMENCE MEDICAL | ALPHARETTA, Forsyth, GA | Pass | State |
| 2024-10-09 | CHEMENCE MEDICAL | ALPHARETTA, Forsyth, GA | Pass | State |
| 2024-10-09 | CHEMENCE MEDICAL | ALPHARETTA, Forsyth, GA | Pass | State |
| 2024-10-09 | CLEARWATER PAPER CORPORATION - AUGUSTA MILL — high-priority violation on file | AUGUSTA, Richmond, GA | Pass | State |
| 2024-10-09 | HEIDELBERG MATERIALS US CEMENT LLC — high-priority violation on file | MASON CITY, Cerro Gordo, IA | Pass | State |
| 2024-10-09 | FRES-CO SYSTEM USA INC | RED OAK, Montgomery, IA | Pass | State |
| 2024-10-09 | POET BIOREFINING - LIBERTY (EMMETSBURG) — high-priority violation on file | EMMETSBURG, Palo Alto, IA | Fail | State |
| 2024-10-09 | POET BIOREFINING - GOWRIE, LLC — high-priority violation on file | GOWRIE, Webster, IA | Pass | State |
| 2024-10-09 | PMX INDUSTRIES,INC. | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2024-10-09 | PMX INDUSTRIES,INC. | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2024-10-09 | REGEN FIBER, LLC | FAIRFAX, Linn, IA | Pass | Local |
| 2024-10-09 | REGEN FIBER, LLC | FAIRFAX, Linn, IA | Pass | Local |
| 2024-10-09 | ARCHER DANIELS MIDLAND DM SOYBEAN PLANT | DES MOINES, Polk, IA | Pass | Local |
| 2024-10-09 | EXXON MOBIL OIL CORP — high-priority violation on file | CHANNAHON, Will, IL | Pass | State |
| 2024-10-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-10-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-10-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-10-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-10-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-10-09 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2024-10-09 | BSMC LA 20-29 HC #1-ALT & 20-29-32 HC #3-ALT TANK BATTERY - CONVERSE FIELD | LOGANSPORT, De Soto, LA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.