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 |
|---|---|---|---|---|
| 2023-12-05 | BONANZA CRK STATE NORTH PLATTE CPF 42-26 | KERSEY 7.1 MI. N OF, Weld, CO | Fail | State |
| 2023-12-05 | BONANZA CRK STATE NORTH PLATTE CPF 42-26 | KERSEY 7.1 MI. N OF, Weld, CO | Fail | State |
| 2023-12-05 | MANATEE COUNTY UTILITY OPERATIONS DEPT. | BRADENTON, Manatee, FL | Pass | State |
| 2023-12-05 | MANATEE COUNTY UTILITY OPERATIONS DEPT. | BRADENTON, Manatee, FL | Pass | State |
| 2023-12-05 | LX HAUSYS AMERICA, INC. — high-priority violation on file | ADAIRSVILLE, Gordon, GA | Pass | State |
| 2023-12-05 | LX HAUSYS AMERICA, INC. — high-priority violation on file | ADAIRSVILLE, Gordon, GA | N/A | State |
| 2023-12-05 | CLEARWATER PAPER CORPORATION - AUGUSTA MILL — high-priority violation on file | AUGUSTA, Richmond, GA | Pass | State |
| 2023-12-05 | IES - HONOLULU TRANSPORTATION | HONOLULU, Honolulu, HI | Pass | State |
| 2023-12-05 | POET BIOREFINING - LIBERTY (EMMETSBURG) — high-priority violation on file | EMMETSBURG, Palo Alto, IA | Pass | State |
| 2023-12-05 | TEMPLETON RYE SPIRITS, LLC — high-priority violation on file | TEMPLETON, Carroll, IA | Pass | State |
| 2023-12-05 | TEMPLETON RYE SPIRITS, LLC — high-priority violation on file | TEMPLETON, Carroll, IA | Pass | State |
| 2023-12-05 | BIOSPRINGER NORTH AMERICA CORPORATION | CEDAR RAPIDS, Linn, IA | Fail | Local |
| 2023-12-05 | WR GRACE | CHICAGO, Cook, IL | Fail | State |
| 2023-12-05 | WR GRACE | CHICAGO, Cook, IL | Pass | State |
| 2023-12-05 | WR GRACE | CHICAGO, Cook, IL | Pass | State |
| 2023-12-05 | MCFONA | GENEVA, Kane, IL | Pass | State |
| 2023-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2023-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2023-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2023-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2023-12-05 | NORTH SHORE GAS CO | LIBERTYVILLE, Lake, IL | Pass | State |
| 2023-12-05 | 3M HARTFORD CITY | HARTFORD CITY, Blackford, IN | Pass | State |
| 2023-12-05 | 3M HARTFORD CITY | HARTFORD CITY, Blackford, IN | Pass | State |
| 2023-12-05 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2023-12-05 | DALTON CORPORATION WARSAW MANUFACTURING FACILITY — high-priority violation on file | WARSAW, Kosciusko, IN | Pass | State |
| 2023-12-05 | ANR PIPELINE COMPANY LAGRANGE COMPRESSOR STATION — high-priority violation on file | LAGRANGE, LaGrange, IN | Pass | State |
| 2023-12-05 | ANR PIPELINE COMPANY LAGRANGE COMPRESSOR STATION — high-priority violation on file | LAGRANGE, LaGrange, IN | Pass | State |
| 2023-12-05 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-12-05 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-12-05 | US STEEL CORPORATION GARY WORKS — high-priority violation on file | GARY, Lake, IN | Pass | State |
| 2023-12-05 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-12-05 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-12-05 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-12-05 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2023-12-05 | WESTLAKE VINYLS INC | CALVERT CITY, Marshall, KY | Pass | State |
| 2023-12-05 | SAPPI NORTH AMERICA, INC. | SKOWHEGAN, Somerset, ME | Pass | State |
| 2023-12-05 | THE DOW CHEMICAL COMPANY U.S.A., MIDLAND — high-priority violation on file | MIDLAND, Midland, MI | Pass | State |
| 2023-12-05 | DEARBORN INDUSTRIAL GENERATION | DEARBORN, Wayne, MI | Pending | State |
| 2023-12-05 | GREDE LLC - SAINT CLOUD | SAINT CLOUD, Benton, MN | Pass | State |
| 2023-12-05 | NORTHERN NATURAL GAS CO - FARIBAULT | FARIBAULT, Rice, MN | Pass | State |
| 2023-12-05 | HEARTLAND CORN PRODUCTS | WINTHROP, Sibley, MN | Pass | State |
| 2023-12-05 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-05 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-05 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-05 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-05 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-05 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-05 | NIEHS | RESEARCH TRIANGLE PARK, Durham, NC | Pass | State |
| 2023-12-05 | IREDELL TRANSMISSION, LLC | STATESVILLE, Iredell, NC | Pass | State |
| 2023-12-05 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | Pass | State |
| 2023-12-05 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | Pass | State |
| 2023-12-05 | TARGA BADLANDS, LLC - LITTLE MISSOURI GAS PLANT (LMGP) AND SMOKEY COMPRESSOR STA | WATFORD CITY, McKenzie, ND | Pass | State |
| 2023-12-05 | CITY OF DICKINSON PUBLIC WORKS DEPARTMENT - CITY OF DICKINSON LANDFILL - AQ | DICKINSON, Stark, ND | Pass | State |
| 2023-12-05 | UNION PACIFIC RAILROAD — high-priority violation on file | NORTH PLATTE, Lincoln, NE | Pass | State |
| 2023-12-05 | FALLS CITY POWER PLANT — high-priority violation on file | FALLS CITY, Richardson, NE | Pass | State |
| 2023-12-05 | SARGENT CORPORATION | ROCHESTER, Strafford, NH | Pass | State |
| 2023-12-05 | MAVERICK COMPRESSOR STATION | MALAGA, Eddy, NM | Pass | State |
| 2023-12-05 | HOLMES COMPRESSOR STATION | WASHINGTON, TOWNSHIP OF, Holmes, OH | Pass | State |
| 2023-12-05 | HOLMES COMPRESSOR STATION | WASHINGTON, TOWNSHIP OF, Holmes, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - SMITH CLR BL | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - SMITH CLR BL | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - SMITH CLR BL | BRIDGEPORT, Belmont, OH | Pass | State |
| 2023-12-05 | EQM OLYMPUS MIDSTREAM, LLC - CATAPULT CS | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-12-05 | EQM OLYMPUS MIDSTREAM, LLC - CATAPULT CS | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-12-05 | EQM OLYMPUS MIDSTREAM, LLC - CATAPULT CS | MARTINS FERRY, Belmont, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-12-05 | ASCENT RESOURCES - UTICA LLC - HARR MTP JF | RAYLAND, Jefferson, OH | Pass | State |
| 2023-12-05 | DTE MARIETTA | MARIETTA, Washington, OH | Pass | State |
| 2023-12-05 | CLEVELAND-CLIFFS CLEVELAND WORKS LLC — high-priority violation on file | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2023-12-05 | ALTERRA ENERGY, LLC | AKRON, Summit, OH | Pass | State |
| 2023-12-05 | ALTERRA ENERGY, LLC | AKRON, Summit, OH | Fail | State |
| 2023-12-05 | ALTERRA ENERGY, LLC | AKRON, Summit, OH | Pass | State |
| 2023-12-05 | BCE MACH LLC / SCHOELING 5 26 12 1H AND MURROW 8 26 1 | CHEROKEE, Alfalfa, OK | Pass | State |
| 2023-12-05 | BCE MACH LLC / THORP 4 24 10 1H AND CYNDA LOU 9 24 10 | HELENA, Alfalfa, OK | Pass | State |
| 2023-12-05 | ET GATHERING PROCESSING LLC / DRY CREEK COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2023-12-05 | ET GATHERING PROCESSING LLC / DRY CREEK COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2023-12-05 | ET GATHERING PROCESSING LLC / DRY CREEK COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2023-12-05 | ET GATHERING PROCESSING LLC / BEAR CREEK COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2023-12-05 | ET GATHERING PROCESSING LLC / BEAR CREEK COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2023-12-05 | BCE MACH III LLC / EHU 219H | HENNESSEY, Kingfisher, OK | Pass | State |
| 2023-12-05 | BCE MACH III LLC / LSEOU 92 3HO LSEOU 93 6HO LSEOU 93 8HO | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-12-05 | BCE MACH III LLC / WHISKEYFEET 1606 3 2MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-12-05 | BCE MACH III LLC / LSEOU 18 1HO 19 4HO 24 4HO 25 4HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2023-12-05 | TULSA LFG LLC / AMERICAN ENVIRONMENTAL LANDFILL | SAND SPRINGS, Osage, OK | Pass | State |
| 2023-12-05 | TULSA LFG LLC / AMERICAN ENVIRONMENTAL LANDFILL | SAND SPRINGS, Osage, OK | Pass | State |
| 2023-12-05 | MARKWEST OKLAHOMA GAS CO LLC / KERNS CANAAN POD 5 COMPRESSOR STATION | MCALESTER, Pittsburg, OK | Pass | State |
| 2023-12-05 | ET GATHERING PROCESSING LLC / CHEYENNE COMPRESSOR STATION | CHEYENNE, Roger Mills, OK | Pass | State |
| 2023-12-05 | ET GATHERING PROCESSING LLC / ROLL COMPRESSOR STATION | CRAWFORD, Roger Mills, OK | Pass | State |
| 2023-12-05 | BCE MACH LLC / JOHN 13 28 13 STA | CAPRON, Woods, OK | Pass | State |
| 2023-12-05 | KINGSFORD MANUFACTURING CO. | SPRINGFIELD, Lane, OR | Pass | Local |
| 2023-12-05 | GUTHRIE ROBERT PACKER/SAYRE | SAYRE, Bradford, PA | Fail | State |
| 2023-12-05 | EASTERN GAS TRANS & STORAGE INC/CENTRE COMP STA | PLEASANT GAP, Centre, PA | Pass | State |
| 2023-12-05 | MARKWEST LIBERTY MIDSTREAM & RESOURCES/GODWIN COMP STA | WASHINGTON, Washington, PA | Pass | State |
| 2023-12-05 | ETC NORTHEAST FLD SVC LLC/PIKE COMP STA | ROCHESTER, Beaver, PA | Pass | State |
| 2023-12-05 | NFG MIDSTREAM TROUT RUN LLC/TROUT RUN MTN COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2023-12-05 | NFG MIDSTREAM COVINGTON LLC/KINNAN 845 WELL PAD | MIDDLEBURY, Tioga, PA | Pass | State |
| 2023-12-05 | EXPAND OPERATING LLC/RU-75 SGL-A WELLPAD | NEW MILFORD, Susquehanna, PA | Pass | State |
| 2023-12-05 | DOMTAR PAPER COMPANY LLC | BENNETTSVILLE, Marlboro, SC | Pass | State |
| 2023-12-05 | RICHLAND COUNTY LANDFILL INC — high-priority violation on file | ELGIN, Kershaw, SC | 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.