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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register and their stack tests in 2023. It lists 26,911 stack tests recorded nationwide in 2023.