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 |
|---|---|---|---|---|
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | JOHNS MANVILLE - WATERVILLE 07 | WATERVILLE, Lucas, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | MARKWEST MORRISTOWN COMPRESSOR STATION | BETHESDA, Belmont, OH | Pass | State |
| 2023-09-19 | ASCENT RESOURCES- UTICA, LLC - KASETA | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-19 | ASCENT RESOURCES- UTICA, LLC - KASETA | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-19 | ASCENT RESOURCES- UTICA, LLC - KASETA | SMITH, TOWNSHIP OF, Belmont, OH | Pass | State |
| 2023-09-19 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-09-19 | FAIRBORN CEMENT COMPANY LLC | XENIA, Greene, OH | Pass | State |
| 2023-09-19 | BCE MACH LLC / HUCKABEE 12 25 11 1H STATION | CHEROKEE, Alfalfa, OK | Pass | State |
| 2023-09-19 | BCE MACH LLC / HUCKABEE 12 25 11 1H STATION | CHEROKEE, Alfalfa, OK | Pass | State |
| 2023-09-19 | ET GATHERING PROCESSING LLC / NALA COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2023-09-19 | ET GATHERING PROCESSING LLC / NALA COMPRESSOR STATION | GREENFIELD, Blaine, OK | Pass | State |
| 2023-09-19 | MARKWEST OKLAHOMA GAS CO LLC / THETA COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2023-09-19 | MARKWEST OKLAHOMA GAS CO LLC / THETA COMPRESSOR STATION | OKARCHE, Canadian, OK | Pass | State |
| 2023-09-19 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2023-09-19 | XTO ENERGY INC / COOK CDP | ARDMORE, Carter, OK | Pass | State |
| 2023-09-19 | BCE MACH III LLC / KEPHART 1 4H PAD | CARPENTER, Custer, OK | Pass | State |
| 2023-09-19 | ET GATHERING PROCESSING LLC / NORTH RUSSELLVILLE COMPRESSOR STATION | QUINTON, Haskell, OK | Pass | State |
| 2023-09-19 | ET GATHERING PROCESSING LLC / POWELL COMPRESSOR STATION | ASHLAND, Pittsburg, OK | Pass | State |
| 2023-09-19 | LATROBE SPECIALTY METALS/ A CARPENTER CO | LATROBE, Westmoreland, PA | Pass | State |
| 2023-09-19 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2023-09-19 | RAUSCH CREEK GENERATION LLC/FRAILEY TWP — high-priority violation on file | TREMONT, Schuylkill, PA | Pass | State |
| 2023-09-19 | SWARTHMORE COLLEGE/SWARTHMORE | SWARTHMORE, Delaware, PA | Pass | State |
| 2023-09-19 | VISTA METALS/KITTANNING PLT | KITTANNING, Armstrong, PA | Pass | State |
| 2023-09-19 | LAUREL MTN MIDSTREAM OPR LLC/SPRINGHILL COMP STA | LAKE LYNN, Fayette, PA | Pass | State |
| 2023-09-19 | BASIN ELECTRIC - DEER CREEK STATION | ELKTON, Brookings, SD | Pass | State |
| 2023-09-19 | ANR PIPELINE COMPANY | COTTAGE GROVE, Henry, TN | Pass | State |
| 2023-09-19 | WEST KARNES CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-09-19 | NORTHWEST PIPELINE CORP SUMAS | SUMAS, Whatcom, WA | Pass | Local |
| 2023-09-19 | GRAYMONT (WI) LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2023-09-19 | WI PUBLIC SERVICE WESTON POWER PLANT | KRONENWETTER, Marathon, WI | Pass | State |
| 2023-09-19 | WISCONSIN ELECTRIC POWER COMPANY (DBA WE ENERGIES) - ROTHSCHILD BIOMASS COGENERA — high-priority violation on file | ROTHSCHILD, Marathon, WI | Pass | State |
| 2023-09-19 | SCHAWK USA LLC | WAUKESHA, Waupaca, WI | Pass | State |
| 2023-09-19 | IBP SOLUTIONS US LLC | MARSHFIELD, Menominee, WI | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | 50 BUTTES PLANT (THUNDER CREEK GAS SERVICES, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-09-19 | CARTER CREEK GAS PLANT (HILCORP ENERGY CO) | EVANSTON, Uinta, WY | Pass | State |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2023-09-18 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Pass | Local |
| 2023-09-18 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Pass | Local |
| 2023-09-18 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Pass | Local |
| 2023-09-18 | BALL WESTERN CAN COMPANY | OAKDALE, Stanislaus, CA | Pass | Local |
| 2023-09-18 | FLORIDA POWER & LIGHT COMPANY | LYNN HAVEN, Bay, FL | Pass | State |
| 2023-09-18 | FLORIDA POWER & LIGHT COMPANY | LYNN HAVEN, Bay, FL | Pass | State |
| 2023-09-18 | OLDCASTLE APG SOUTH | POMPANO BEACH, Broward, FL | Pass | State |
| 2023-09-18 | OLDCASTLE APG SOUTH | POMPANO BEACH, Broward, FL | Pass | State |
| 2023-09-18 | CERTAINTEED GYPSUM PALATKA, LLC | PALATKA, Putnam, FL | Pass | State |
| 2023-09-18 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2023-09-18 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2023-09-18 | GENERAL MOTORS LLC | BOWLING GREEN, Warren, KY | Pass | State |
| 2023-09-18 | VENTURE GLOBAL CALCASIEU PASS LLC - CALCASIEU PASS LNG PROJECT | CAMERON, Cameron, LA | Pass | State |
| 2023-09-18 | MIDLAND COGENERATION VENTURE — high-priority violation on file | MIDLAND, Midland, MI | Pending | State |
| 2023-09-18 | DIMENSIONS 6 GAS LIFT COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-09-18 | DIMENSIONS 6 GAS LIFT COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-09-18 | ISLAND BOOSTER STATION | LOVING, Eddy, NM | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.