EPA Air · stack tests by year
Air-emissions stack tests in 2023
- 26,911Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2023
- California 7,676
- Ohio 2,800
- Florida 1,589
- Indiana 1,487
- Oklahoma 1,420
- New Mexico 1,087
- Georgia 1,057
- Pennsylvania 889
- Alabama 689
- Wyoming 670
- Mississippi 625
- Arkansas 602
- Iowa 453
- Colorado 436
- Texas 395
- Missouri 328
- North Carolina 302
- Washington 283
- Wisconsin 251
- Michigan 229
- Minnesota 228
- Delaware 224
- South Carolina 222
- West Virginia 218
- Kentucky 210
- Tennessee 200
- Utah 196
- Montana 177
- Virginia 170
- North Dakota 157
- Illinois 152
- Nebraska 152
- Alaska 140
- Nevada 127
- New York 123
- Maine 111
- Connecticut 108
- Arizona 102
- Louisiana 77
- Idaho 77
- Hawaii 72
- New Hampshire 58
- New Jersey 56
- South Dakota 54
- Maryland 49
- Kansas 45
- Oregon 44
- District of Columbia 36
- Massachusetts 27
- Rhode Island 20
- Puerto Rico 6
- Vermont 5
Other years
Air-emissions stack tests recorded in 2023
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2023-10-02 | CHEVRON U.S.A. INC. | SAN ARDO, Monterey, CA | Pass | Local |
| 2023-10-02 | CERTAINTEED GYPSUM PALATKA, LLC | PALATKA, Putnam, FL | Pass | State |
| 2023-10-02 | GOOD SAMARITAN HOSPITAL | DOWNERS GROVE, DuPage, IL | Pass | State |
| 2023-10-02 | COMMERCIAL ASPHALT CO - PLANT 909 | BLAINE, Ramsey, MN | Pass | State |
| 2023-10-02 | 3G ROCK PARTNERS GRAVOIS MILLS | GRAVOIS MILLS, Morgan, MO | Pass | State |
| 2023-10-02 | BOOTLEG RIDGE COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2023-10-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2023-10-02 | EOG - NEPTUNE LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2023-10-02 | BLUE RACER MIDSTREAM LLC - HFS#1 (CADIZ B) | CADIZ, Harrison, OH | Pass | State |
| 2023-10-02 | BLUE RACER MIDSTREAM LLC - HFS#1 (CADIZ B) | CADIZ, Harrison, OH | Pass | State |
| 2023-10-02 | BLUE RACER MIDSTREAM LLC - HFS#1 (CADIZ B) | CADIZ, Harrison, OH | Pass | State |
| 2023-10-02 | FW MIDCON I LLC / ROTHER 1H 5X | CALUMET, Canadian, OK | Pass | State |
| 2023-10-02 | FW MIDCON I LLC / REDHEAD 1407 2H 3H 4H 9XX | OKARCHE, Canadian, OK | Pass | State |
| 2023-10-02 | NFG MIDSTREAM COVINGTON LLC/KRAUSE COMP STA | MAINESBURG, Tioga, PA | Fail | State |
| 2023-10-02 | BKV OPR LLC/P & G WAREHOUSE PAD | MESHOPPEN, Wyoming, PA | Pass | State |
| 2023-10-02 | ND PAPER INC - BIRON DIVISION | WISCONSIN RAPIDS, Menominee, WI | Pass | State |
| 2023-10-02 | ND PAPER INC - BIRON DIVISION | WISCONSIN RAPIDS, Menominee, WI | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-02 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-10-01 | HUMBOLDT SAWMILL COMPANY — high-priority violation on file | SCOTIA, Humboldt, CA | Pass | Local |
| 2023-10-01 | CERTAINTEED GYPSUM PALATKA, LLC | PALATKA, Putnam, FL | Pass | State |
| 2023-10-01 | LINAM RANCH GAS PLANT | HOBBS, Lea, NM | Pass | State |
| 2023-09-29 | PINE BLUFF SAND & GRAVEL PLANT #2 | PINE BLUFF, Jefferson, AR | Pass | State |
| 2023-09-29 | LONG BEACH SERRF PROJECT | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2023-09-29 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-09-29 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-09-29 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-09-29 | LINN OPERATING INC — high-priority violation on file | TAFT, Kern, CA | Pass | Local |
| 2023-09-29 | GREIF BROTHERS — high-priority violation on file | MERCED, Merced, CA | Pass | Local |
| 2023-09-29 | GREIF BROTHERS — high-priority violation on file | MERCED, Merced, CA | Pass | Local |
| 2023-09-29 | GREIF BROTHERS — high-priority violation on file | MERCED, Merced, CA | Pass | Local |
| 2023-09-29 | RESIN SOLUTIONS LLC - STRATFORD FACILITY — high-priority violation on file | STRATFORD, Fairfield, CT | Fail | State |
| 2023-09-29 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-29 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-29 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-29 | ARMSTRONG WORLD INDUSTRIES, INC. | PENSACOLA, Escambia, FL | Pass | State |
| 2023-09-29 | ARMSTRONG WORLD INDUSTRIES, INC. | PENSACOLA, Escambia, FL | Pass | State |
| 2023-09-29 | ARMSTRONG WORLD INDUSTRIES, INC. | PENSACOLA, Escambia, FL | Pass | State |
| 2023-09-29 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2023-09-29 | MOSAIC FERTILIZER, LLC | RIVERVIEW, Hillsborough, FL | Pass | State |
| 2023-09-29 | C.W. MATTHEWS CONTRACTING CO., INC. - GARDEN CITY ASPHALT PLANT | GARDEN CITY, Chatham, GA | Pass | State |
| 2023-09-29 | GEORGIA-PACIFIC GYPSUM LLC | FORT DODGE, Webster, IA | Fail | State |
| 2023-09-29 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-29 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-29 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-29 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-29 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-29 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-29 | GRAND RAPIDS WASTEWATER TREATMENT PLANT | GRAND RAPIDS, Kent, MI | Pass | State |
| 2023-09-29 | SAUK TRAIL HILLS DEVELOPMENT | CANTON, Wayne, MI | Pending | State |
| 2023-09-29 | NE RENEWABLE POWER SPRINGFIELD | SPRINGFIELD, Sullivan, NH | Pass | State |
| 2023-09-29 | KUTZ COMPRESSOR STATION | BLOOMFIELD, San Juan, NM | Pass | State |
| 2023-09-29 | KUTZ COMPRESSOR STATION | BLOOMFIELD, San Juan, NM | Pass | State |
| 2023-09-29 | ENLINK MIDSTREAM SERVICES LLC / SILVER COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2023-09-29 | ENLINK MIDSTREAM SERVICES LLC / SILVER COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2023-09-29 | CONTINENTAL RESOURCES / GALVIN 5 27 22 15XHW GALVIN 6 27 22 15 | ALEX, Grady, OK | Pass | State |
| 2023-09-29 | VALIDUS ENERGY II MIDCON LLC / RAGSDALE 35 26 PAD | BRIDGE CREEK, Grady, OK | Pass | State |
| 2023-09-29 | BCE MACH III LLC / BOLLENBACH 1705 2 27MH PAD | DOVER, Kingfisher, OK | Pass | State |
| 2023-09-29 | MID-CONTINENT COAL AND COKE COMPANY | HUGER, Berkeley, SC | Pass | State |
| 2023-09-29 | ISOLA USA CORP | RIDGEWAY, Fairfield, SC | Pass | State |
| 2023-09-29 | SYLVAMO NORTH AMERICA LLC - EASTOVER MILL | EASTOVER, Richland, SC | Pass | State |
| 2023-09-29 | KERRY INC — high-priority violation on file | RHINELANDER, Outagamie, WI | Pass | State |
| 2023-09-29 | BIG SANDY PEAKER PLANT, LLC, NEAL | KENOVA, Wayne, WV | Pass | State |
| 2023-09-29 | GREEN RIVER SODA ASH PLANT (AMERICAN SODA LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-09-29 | GREEN RIVER SODA ASH PLANT (AMERICAN SODA LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-09-28 | ARKANSAS BIOENERGY, LLC - LEOLA | LEOLA, Grant, AR | Pass | State |
| 2023-09-28 | HUMBOLDT SAWMILL COMPANY — high-priority violation on file | SCOTIA, Humboldt, CA | Pass | Local |
| 2023-09-28 | CHEVRON USA | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2023-09-28 | A TEICHERT & SON | SACRAMENTO, Sacramento, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | MACPHERSON OIL CO - HEAVY OIL | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
| 2023-09-28 | LINN OPERATING INC | KERN (SUBDIVISION), Kern, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.