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 | WASATCH INTEGRATED WASTE MANAGEMENT | LAYTON, Davis, UT | Pass | State |
| 2023-12-05 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2023-12-05 | BIMBO BAKEHOUSE LLC | ROANOKE, Roanoke (city), VA | Pass | State |
| 2023-12-05 | PHILLIPS 66 | FERNDALE, Whatcom, WA | Pass | Local |
| 2023-12-05 | MANITOWOC PUBLIC UTILITIES | MANITOWOC, Manitowoc, WI | Pass | State |
| 2023-12-05 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | LEAVITT COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | BOLT 35 COMPRESSOR STATION (EOG RESOURCES, INC.) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2023-12-05 | MUDDY CREEK STATION (KERN RIVER GAS TRANS) | LINCOLN COUNTY, Lincoln, WY | Pass | State |
| 2023-12-05 | MUDDY CREEK STATION (KERN RIVER GAS TRANS) | LINCOLN COUNTY, Lincoln, WY | Pass | State |
| 2023-12-04 | ALABAMA POWER COMPANY | BUCKS, Mobile, AL | Pass | State |
| 2023-12-04 | DESOTO GATHERING COMPANY, LLC - S. BROWNIE CPF-1 | HATTIEVILLE, Conway, AR | Pass | State |
| 2023-12-04 | DESOTO GATHERING COMPANY LLC - SOUTH BROWNIE CPF 2 | HATTIEVILLE, Conway, AR | Pass | State |
| 2023-12-04 | LA CITY, DWP HARBOR GENERATING STATION | WILMINGTON, Los Angeles, CA | Pass | Local |
| 2023-12-04 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-04 | LUNDAY-THAGARD CO DBA WORLD OIL REFINING — high-priority violation on file | SOUTH GATE, Los Angeles, CA | Pass | Local |
| 2023-12-04 | NAFTEX OPERATING CO-PORTALS PETRO LEASE — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-04 | NAFTEX OPERATING CO-PORTALS PETRO LEASE — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-12-04 | PDC ENERGY - FALKEN 9-11 | EATON AREA, Weld, CO | Pass | State |
| 2023-12-04 | B&B ELEC MOTOR SVC INC - SHOP | WRAY AREA, Yuma, CO | Pass | State |
| 2023-12-04 | B&B ELEC MOTOR SVC INC - SHOP | WRAY AREA, Yuma, CO | Pass | State |
| 2023-12-04 | ORLANDO UTILITIES COMMISSION | ORLANDO, Orange, FL | Pass | State |
| 2023-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2023-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2023-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2023-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2023-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2023-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2023-12-04 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2023-12-04 | CEMEX SOUTHEAST, LLC | CLINCHFIELD, Houston, GA | Pass | State |
| 2023-12-04 | HK CONTRACTORS INC 00121 | IDAHO FALLS, Bonneville, ID | Pass | State |
| 2023-12-04 | DTE ELECTRIC COMPANY - MONROE POWER PLANT | MONROE, Monroe, MI | Pending | State |
| 2023-12-04 | NORTHERN NATURAL GAS - ALBERT LEA | HARTLAND, Freeborn, MN | Pass | State |
| 2023-12-04 | CAMBRIA CO | LE SUEUR, Le Sueur, MN | Pass | State |
| 2023-12-04 | ROCHESTER PUBLIC UTILITIES WESTSIDE ENERGY STATION | ROCHESTER, Olmsted, MN | Pass | State |
| 2023-12-04 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-04 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-04 | VENTURE OIL AND GAS INC, HIWANNEE OPERATIONS — high-priority violation on file | WAYNESBORO, Wayne, MS | Pass | State |
| 2023-12-04 | PLINY THE ELDER COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2023-12-04 | RJ BOOSTER GCP4-3808 | SANTA FE, Santa Fe, NM | Pass | State |
| 2023-12-04 | EOG RESOURCES, INC. - SANOR FARMS 23-17-5 PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2023-12-04 | EOG RESOURCES, INC. - SANOR FARMS 23-17-5 PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2023-12-04 | EOG RESOURCES, INC. - SANOR FARMS 23-17-5 PAD | NORTH GEORGETOWN, Columbiana, OH | Pass | State |
| 2023-12-04 | BCE MACH LLC / TOM 16 27 12 STA | CHEROKEE, Alfalfa, OK | Pass | State |
| 2023-12-04 | BCE MACH LLC / HADWIGER 4 26 11 1H STA | CHEROKEE, Alfalfa, OK | Pass | State |
| 2023-12-04 | MARKWEST OKLAHOMA GAS CO LLC / BREWER COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2023-12-04 | FW MIDCON I LLC / CALVIN 8 16 9 1H 2H | OMEGA, Kingfisher, OK | Pass | State |
| 2023-12-04 | CHISHOLM OIL AND GAS OPERATING LLC / HOMIER 1808 36 1MH PAD | LOYAL, Kingfisher, OK | Pass | State |
| 2023-12-04 | BCE MACH III LLC / LSEOU 92 3HO LSEOU 93 6HO LSEOU 93 8HO | KINGFISHER, Kingfisher, OK | Pass | State |
| 2023-12-04 | TARGA PIPELINE MIDCONTINENT LLC / GOFF COMPRESSOR STATION | LITTLE CITY, Marshall, OK | Pass | State |
| 2023-12-04 | TENNESSEE GAS PIPELINE CO/313 COUDERSPORT | COUDERSPORT, Potter, PA | Pass | State |
| 2023-12-04 | DREES CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-12-04 | DREES CENTRAL FACILITY | KARNES CITY, Karnes, TX | Pass | State |
| 2023-12-04 | DOMINION ENERGY - BRUNSWICK | FREEMAN, Brunswick, VA | Pass | State |
| 2023-12-04 | WESTROCK LONGVIEW LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2023-12-04 | MUDDY CREEK STATION (KERN RIVER GAS TRANS) | LINCOLN COUNTY, Lincoln, WY | Pass | State |
| 2023-12-04 | MUDDY CREEK STATION (KERN RIVER GAS TRANS) | LINCOLN COUNTY, Lincoln, WY | Pass | State |
| 2023-12-04 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | EVANSVILLE, Natrona, WY | Pass | State |
| 2023-12-02 | STERIGENICS US, INC. | CHARLOTTE, Mecklenburg, NC | Pass | Local |
| 2023-12-02 | DOMINION ENERGY - GREENSVILLE POWER STATION | EMPORIA, Greensville, VA | Pass | State |
| 2023-12-01 | SAINT GOBAIN CERAMIC MATERIALS — high-priority violation on file | HUNTSVILLE, Madison, AL | Pass | Local |
| 2023-12-01 | LONG BEACH SERRF PROJECT | LONG BEACH, Los Angeles, CA | Pending | Local |
| 2023-12-01 | FLORIDA POWER & LIGHT | FORT MYERS, Lee, FL | Pass | State |
| 2023-12-01 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-12-01 | GEORGIA-PACIFIC CEDAR SPRINGS LLC | CEDAR SPRINGS, Early, GA | Pass | State |
| 2023-12-01 | HECO - KAHE | KAPOLEI, Honolulu, HI | Pass | State |
| 2023-12-01 | WR GRACE | CHICAGO, Cook, IL | Pass | State |
| 2023-12-01 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-12-01 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-12-01 | STEEL DYNAMICS INCORPORATED ENGINEERED BAR PRODUCTS DIVISION — high-priority violation on file | PITTSBORO, Hendricks, IN | Pass | State |
| 2023-12-01 | SHERIDAN KENTUCKY INC | VERSAILLES, Woodford, KY | Pass | State |
| 2023-12-01 | MICHIGAN SUGAR COMPANY-CARO FACTORY — high-priority violation on file | CARO, Tuscola, MI | Fail | State |
| 2023-12-01 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-12-01 | BLUE MOUNTAIN PRODUCTION COMPANY, TAYLOR AND PLANT PROPERTY MINE | BLUE MOUNTAI, Tippah, MS | Pass | State |
| 2023-12-01 | DAKOTA GASIFICATION COMPANY (DGC) - GREAT PLAINS SYNFUELS PLANT - AQ | BEULAH, Mercer, ND | Pass | State |
| 2023-12-01 | ASH GROVE CEMENT CO — high-priority violation on file | LOUISVILLE, Cass, NE | N/A | State |
| 2023-12-01 | ASH GROVE CEMENT CO — high-priority violation on file | LOUISVILLE, Cass, NE | N/A | State |
| 2023-12-01 | CARGILL, INCORPORATED - SALT DIVISION | AKRON, Summit, OH | Pass | State |
| 2023-12-01 | CARGILL, INCORPORATED - SALT DIVISION | AKRON, Summit, OH | 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.