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 |
|---|---|---|---|---|
| 2023-11-29 | ARCH WOOD PROTECTION, INC. — high-priority violation on file | CONLEY, DeKalb, GA | Pass | State |
| 2023-11-29 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2023-11-29 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2023-11-29 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2023-11-29 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2023-11-29 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2023-11-29 | GRP MADISON, LLC — high-priority violation on file | COLBERT, Madison, GA | Pass | State |
| 2023-11-29 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2023-11-29 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2023-11-29 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2023-11-29 | PLCP, L.P. | STEAMBOAT ROCK, Hardin, IA | Pass | State |
| 2023-11-29 | CENTRAL IOWA POWER COOPERATIVE | CRESTON, Union, IA | Pass | State |
| 2023-11-29 | CENTRAL IOWA POWER COOPERATIVE | CRESTON, Union, IA | Pass | State |
| 2023-11-29 | WR GRACE | CHICAGO, Cook, IL | Pass | State |
| 2023-11-29 | WR GRACE | CHICAGO, Cook, IL | Pass | State |
| 2023-11-29 | WR GRACE | CHICAGO, Cook, IL | Fail | State |
| 2023-11-29 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-11-29 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-11-29 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-11-29 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-11-29 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-11-29 | INDIANA UNIVERSITY | BLOOMINGTON, Monroe, IN | Pass | State |
| 2023-11-29 | MIES CONST (AIR CURT COMB)(PORTABLE)(AIR) | UNKNOWN, Wallace, KS | Pass | State |
| 2023-11-29 | HARDIN CO CONTAINED LANDFILL-AUDUBON TRACE | ELIZABETHTOWN, Hardin, KY | Pass | State |
| 2023-11-29 | CITGO PETROLEUM CORP - LAKE CHARLES MANUFACTURING COMPLEX | SULPHUR, Calcasieu, LA | Pass | State |
| 2023-11-29 | MILLERSVILLE LANDFILL | SEVERN, Anne Arundel, MD | Pass | State |
| 2023-11-29 | MIDLAND COGENERATION VENTURE — high-priority violation on file | MIDLAND, Midland, MI | Pass | State |
| 2023-11-29 | AMERICAN CRYSTAL SUGAR - MOORHEAD — high-priority violation on file | MOORHEAD, Clay, MN | Fail | State |
| 2023-11-29 | XCEL ENERGY - RIVERSIDE GENERATING PLANT | MINNEAPOLIS, Hennepin, MN | Pass | State |
| 2023-11-29 | NORTHSHORE MINING CO - SILVER BAY | SILVER BAY, Lake, MN | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | CENTRAL STONE- CS - 66 | POTOSI, Washington, MO | Pass | State |
| 2023-11-29 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-11-29 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-11-29 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-11-29 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-11-29 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-11-29 | CHARLOTTE PIPE AND FOUNDRY COMPANY | OAKBORO, Stanly, NC | Pass | State |
| 2023-11-29 | GULFPORT APPALACHIA, LLC - HENDERSHOT PAD | POWHATAN POINT, Belmont, OH | Pass | State |
| 2023-11-29 | GULFPORT APPALACHIA, LLC - HENDERSHOT PAD | POWHATAN POINT, Belmont, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | INR MIDSTREAM, LLC - LONG COMPRESSOR STATION | OHIO, Undetermined, OH | Pass | State |
| 2023-11-29 | ONEOK FIELD SERVICES CO LLC / CEDAR LAKE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2023-11-29 | ET GATHERING PROCESSING LLC / TRI COUNTY COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2023-11-29 | ET GATHERING PROCESSING LLC / TRI COUNTY COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2023-11-29 | FW MIDCON I LLC / CLARENCE 0204 2H 3H 11X MCCLELLAND 020 | FOSTER, Stephens, OK | Pass | State |
| 2023-11-29 | TENNESSEE GAS PIPELINE CO/315 WELLSBORO | WELLSBORO, Tioga, PA | Pass | State |
| 2023-11-29 | HEIDELBERG MATERIALS US CEMENT LLC/NAZARETH | NAZARETH, Northampton, PA | Pass | State |
| 2023-11-29 | TEXAS EASTERN TRANS LP/PERULACK STA | EAST WATERFORD, Juniata, PA | Pass | State |
| 2023-11-29 | YORK GROUP INC/BLACK BRIDGE RD | YORK, York, PA | Pass | State |
| 2023-11-29 | VICTAULIC CO/LAWRENCEVILLE PLT | TIOGA, Tioga, PA | Pass | State |
| 2023-11-29 | ASSAI ENERGY LLC - KEYSTONE LANDFILL SITE | DUNMORE, Lackawanna, PA | Fail | State |
| 2023-11-29 | KGM MANUFACTURING LLC | MOORE, Spartanburg, SC | Pass | State |
| 2023-11-29 | REDFIELD ENERGY LLC — high-priority violation on file | REDFIELD, Beadle, SD | Fail | State |
| 2023-11-29 | NIPPON DYNAWAVE PACKAGING COMPANY LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2023-11-29 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2023-11-29 | AMERICAN BITUMINOUS POWER PARTNERS, L. P., GRANT | GRANT TOWN, Marion, WV | Pass | State |
| 2023-11-29 | WESTLAKE NATRIUM LLC, WESTLAKE NATRIUM | PROCTOR, Marshall, WV | Pass | State |
| 2023-11-28 | TVA — high-priority violation on file | TUSCUMBIA, Colbert, AL | Pass | State |
| 2023-11-28 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2023-11-28 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2023-11-28 | INTERNATIONAL PAPER COMPANY — high-priority violation on file | SELMA, Dallas, AL | Pass | State |
| 2023-11-28 | ROWLEY RECYCLING, LLC. | DEMOPOLIS, Marengo, AL | Pass | State |
| 2023-11-28 | NUCOR STEEL DECATUR LLC | TRINITY, Morgan, AL | Pass | State |
| 2023-11-28 | NUCOR STEEL DECATUR LLC | TRINITY, Morgan, AL | Pass | State |
| 2023-11-28 | IMERYS CARBONATES, USA, INC. | SYLACAUGA, Talladega, AL | Pass | State |
| 2023-11-28 | NUCOR YAMATO STEEL COMPANY | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2023-11-28 | NUCOR STEEL KINGMAN | KINGMAN, Mohave, AZ | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.