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 |
|---|---|---|---|---|
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | WALNUT ENERGY CENTER AUTHORITY | TURLOCK, Stanislaus, CA | Pass | Local |
| 2023-08-15 | NRO - AEROSPACE DATA FACIITY (ADF-C) | AURORA, Arapahoe, CO | Pass | State |
| 2023-08-15 | NRO - AEROSPACE DATA FACIITY (ADF-C) | AURORA, Arapahoe, CO | Pass | State |
| 2023-08-15 | AMRIZE PORTLAND PLANT — high-priority violation on file | FLORENCE 3.8 MI. E OF, Fremont, CO | Pass | State |
| 2023-08-15 | DCP OPERATING CO - O'CONNOR GAS PLANT | KERSEY AREA, Weld, CO | Pass | State |
| 2023-08-15 | DCP OPERATING CO - O'CONNOR GAS PLANT | KERSEY AREA, Weld, CO | Pass | State |
| 2023-08-15 | SPELLBOUND ENERGY - AKBARY / 1A PAD | NUNN AREA, Weld, CO | Pass | State |
| 2023-08-15 | PRAIRIE OPERATING - SIMPSON 36-1H | PIERCE AREA, Weld, CO | Pass | State |
| 2023-08-15 | SPELLBOUND ENERGY - DEPORTER / 29-A | CARR AREA, Weld, CO | Pass | State |
| 2023-08-15 | DC WATER (BLUE PLAINS WASTEWATER TREATMENT FACILITY) — high-priority violation on file | WASHINGTON, District of Columbia, DC | Pass | State |
| 2023-08-15 | DC WATER (BLUE PLAINS WASTEWATER TREATMENT FACILITY) — high-priority violation on file | WASHINGTON, District of Columbia, DC | Pass | State |
| 2023-08-15 | DC WATER (BLUE PLAINS WASTEWATER TREATMENT FACILITY) — high-priority violation on file | WASHINGTON, District of Columbia, DC | Pass | State |
| 2023-08-15 | FARMINGTON MATERIALS, LLC | FARMINGTON, Kent, DE | Pass | State |
| 2023-08-15 | FARMINGTON MATERIALS, LLC | FARMINGTON, Kent, DE | Pass | State |
| 2023-08-15 | FARMINGTON MATERIALS, LLC | FARMINGTON, Kent, DE | Pass | State |
| 2023-08-15 | FARMINGTON MATERIALS, LLC | FARMINGTON, Kent, DE | Pass | State |
| 2023-08-15 | ENVIVA, LLC | COTTONDALE, Jackson, FL | Pass | State |
| 2023-08-15 | ENVIVA, LLC | COTTONDALE, Jackson, FL | Pass | State |
| 2023-08-15 | FLORIDA POWER AND LIGHT COMPANY | LOXAHATCHEE, Palm Beach, FL | Pass | State |
| 2023-08-15 | FLORIDA POWER AND LIGHT COMPANY | LOXAHATCHEE, Palm Beach, FL | Pass | State |
| 2023-08-15 | GERDAU AMERISTEEL US INC. | CARTERSVILLE, Bartow, GA | Pass | State |
| 2023-08-15 | BUCKEYE SE TERMINALS LP - ALBANY II | ALBANY, Dougherty, GA | Pass | State |
| 2023-08-15 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-08-15 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-08-15 | INTERNATIONAL PAPER COMPANY - ROME MILL | ROME, Floyd, GA | Pass | State |
| 2023-08-15 | GREEN POWER SOLUTIONS OF GEORGIA | DUBLIN, Laurens, GA | Pass | State |
| 2023-08-15 | GREEN POWER SOLUTIONS OF GEORGIA | DUBLIN, Laurens, GA | Pass | State |
| 2023-08-15 | GREEN POWER SOLUTIONS OF GEORGIA | DUBLIN, Laurens, GA | Pass | State |
| 2023-08-15 | HELCO - KEAHOLE — high-priority violation on file | KAILUA KONA, Hawaii, HI | Pass | State |
| 2023-08-15 | EARLVILLE MUNICIPAL UTILITIES | EARLVILLE, Delaware, IA | Pass | State |
| 2023-08-15 | GRAIN PROCESSING CORP — high-priority violation on file | MUSCATINE, Muscatine, IA | Fail | State |
| 2023-08-15 | MARTIN MARIETTA INC-AMES | AMES, Story, IA | Pass | State |
| 2023-08-15 | MARTIN MARIETTA INC-AMES | AMES, Story, IA | Pass | State |
| 2023-08-15 | MARTIN MARIETTA INC-AMES | AMES, Story, IA | Pass | State |
| 2023-08-15 | MARTIN MARIETTA INC-AMES | AMES, Story, IA | Pass | State |
| 2023-08-15 | MARTIN MARIETTA INC-AMES | AMES, Story, IA | Pass | State |
| 2023-08-15 | MARTIN MARIETTA INC-AMES | AMES, Story, IA | Pass | State |
| 2023-08-15 | MARTIN MARIETTA INC-AMES | AMES, Story, IA | Pass | State |
| 2023-08-15 | POET BIOREFINING - GOWRIE, LLC — high-priority violation on file | GOWRIE, Webster, IA | Fail | State |
| 2023-08-15 | J R SIMPLOT COMPANY-DON SIDING POCATELLO — high-priority violation on file | POCATELLO, Power, ID | Pass | State |
| 2023-08-15 | LAKE FOREST HOSPITAL | LAKE FOREST, Lake, IL | Pass | State |
| 2023-08-15 | CWA AUTHORITY INC BELMONT ADV WASTEWATER TREATMENT PLANT | INDIANAPOLIS, Marion, IN | Pass | State |
| 2023-08-15 | SEDGWICK CO. PUBLIC WORKS (AIR CURT COMB) (PORTABLE)(AIR) | WICHITA, Sedgwick, KS | Pass | State |
| 2023-08-15 | DOW SILICONES CORP | CARROLLTON, Carroll, KY | Pass | State |
| 2023-08-15 | LOUISVILLE GAS & ELECTRIC COMPANY, MILL CREEK GENERATING STATION | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2023-08-15 | AES WARRIOR RUN | CUMBERLAND, Allegany, MD | Pass | State |
| 2023-08-15 | PIONEER PLASTICS CORPORATION | AUBURN, Androscoggin, ME | Pass | State |
| 2023-08-15 | GENERAL MOTORS LLC FLINT ASSEMBLY | FLINT, Genesee, MI | Pending | State |
| 2023-08-15 | DTE GAS COMPANY - MILFORD COMPRESSOR STATION | MILFORD, Oakland, MI | Pass | State |
| 2023-08-15 | DART CONTAINER CORPORATION OF MICHIGAN | MASON, Ingham, MI | Fail | State |
| 2023-08-15 | WISCONSIN CENTRAL LTD | DULUTH, St. Louis, MN | Pass | State |
| 2023-08-15 | MONTANA SULPHUR & CHEMICAL | BILLINGS, Yellowstone, MT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.