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 |
|---|---|---|---|---|
| 2023-09-28 | CNX MIDSTREAM OPERATING COMPANY LLC, SHIRLEY STATION | ALMA, Tyler, WV | Pass | State |
| 2023-09-28 | GREEN RIVER SODA ASH PLANT (AMERICAN SODA LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-09-28 | GREEN RIVER SODA ASH PLANT (AMERICAN SODA LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2023-09-27 | LEHIGH CEMENT COMPANY | LEEDS, Jefferson, AL | Pass | Local |
| 2023-09-27 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2023-09-27 | AMERICAN KRAFT PAPER INDUSTRIES, LLC. | WHITE HALL, Jefferson, AR | Pass | State |
| 2023-09-27 | NUCOR COATINGS CORPORATION - BLYTHEVILLE PLANT | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2023-09-27 | NUCOR COATINGS CORPORATION - BLYTHEVILLE PLANT | BLYTHEVILLE, Mississippi, AR | Pass | State |
| 2023-09-27 | MCGEORGE CONTRACTING CO., INC.- CRANFORD CONSTRUCTION COMPANY - EARNES ROAD | NORTH LITTLE ROCK, Pulaski, AR | Pass | State |
| 2023-09-27 | EL PASO NATURAL GAS CO - SELIGMAN COMPRESSOR STATION | SELIGMAN, Yavapai, AZ | Pass | State |
| 2023-09-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-27 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2023-09-27 | PDC ENERGY - MCNEAR 10-9 PAD | GREELEY AREA, Weld, CO | Pass | State |
| 2023-09-27 | PDC ENERGY - MCNEAR 10-9 PAD | GREELEY AREA, Weld, CO | Pass | State |
| 2023-09-27 | SEAPORT CANAVERAL CORP. | CAPE CANAVERAL, Brevard, FL | Pass | State |
| 2023-09-27 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-27 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-27 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-27 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-27 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-27 | JAX LNG LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2023-09-27 | TROJAN BATTERY COMPANY, LLC | SANDERSVILLE, Washington, GA | Pass | State |
| 2023-09-27 | BAYER MIDWEST PRODUCTION COMPANY LLC | REMINGTON, Jasper, IN | Pass | State |
| 2023-09-27 | BAYER MIDWEST PRODUCTION COMPANY LLC | REMINGTON, Jasper, IN | Pass | State |
| 2023-09-27 | BAYER MIDWEST PRODUCTION COMPANY LLC | REMINGTON, Jasper, IN | Pass | State |
| 2023-09-27 | BAYER MIDWEST PRODUCTION COMPANY LLC | REMINGTON, Jasper, IN | Pass | State |
| 2023-09-27 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-27 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-27 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-27 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-27 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-27 | AES INDIANA EAGLE VALLEY GENERATING STATION — high-priority violation on file | MARTINSVILLE, Morgan, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-09-27 | ANTHONY MUN. POWER PLANT (AIR) — high-priority violation on file | ANTHONY, Harper, KS | Pass | State |
| 2023-09-27 | MARTIN MARIETTA MATERIALS - LONE ELM QUARRY (AIR) | OLATHE, Johnson, KS | Pass | State |
| 2023-09-27 | MARTIN MARIETTA MATERIALS - LONE ELM QUARRY (AIR) | OLATHE, Johnson, KS | Pass | State |
| 2023-09-27 | CLARIOS LLC — high-priority violation on file | FLORENCE, Boone, KY | Pass | State |
| 2023-09-27 | AMERICAN SYNTHETIC RUBBER COMPANY — high-priority violation on file | LOUISVILLE, Jefferson, KY | Pass | Local |
| 2023-09-27 | RM PACKER COMPANY INCORPORATED | TOWN OF TISBURY, Dukes, MA | Pass | U.S. EPA |
| 2023-09-27 | WASTE MANAGEMENT DISPOSAL SERVICES OF MAINE, INC. — high-priority violation on file | NORRIDGEWOCK, Somerset, ME | Pass | State |
| 2023-09-27 | TOYOTA MOTOR NORTH AMERICA R&D | ANN ARBOR, Washtenaw, MI | Pass | State |
| 2023-09-27 | MASONITE CORPORATION — high-priority violation on file | LAUREL, Jones, MS | Pass | State |
| 2023-09-27 | MASONITE CORPORATION — high-priority violation on file | LAUREL, Jones, MS | Pass | State |
| 2023-09-27 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2023-09-27 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2023-09-27 | COOPERATIVE ENERGY, A MISSISSIPPI ELECTRIC COOPERATIVE, MOSELLE GENERATING PLANT | MOSELLE, Jones, MS | Pass | State |
| 2023-09-27 | S. T. WOOTEN CORPORATION - CRAVEN CO PLANT | NEW BERN, Craven, NC | Pass | State |
| 2023-09-27 | NCEMC - OCRACOKE | OCRACOKE, Hyde, NC | Pass | State |
| 2023-09-27 | DUKE ENERGY PROGRESS, LLC - H.F. LEE STEAM ELECTRIC PLANT | GOLDSBORO, Wayne, NC | Pass | State |
| 2023-09-27 | TED PAUP TB | CARLSBAD, Eddy, NM | Pass | State |
| 2023-09-27 | BIG LIZARD COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2023-09-27 | GOLD QUARRY OPERATIONS — high-priority violation on file | CARLIN, Eureka, NV | Pass | State |
| 2023-09-27 | SMOKY VALLEY COMMON OPERATION — high-priority violation on file | ROUND MOUNTAIN, Nye, NV | Pass | State |
| 2023-09-27 | BUCKEYE POWER GREENVILLE STATION | GREENVILLE, Darke, OH | Pass | State |
| 2023-09-27 | BUCKEYE POWER GREENVILLE STATION | GREENVILLE, Darke, OH | Pass | State |
| 2023-09-27 | B & C CASTINGS | BARBERTON, Summit, OH | Pass | State |
| 2023-09-27 | B & C CASTINGS | BARBERTON, Summit, OH | Pass | State |
| 2023-09-27 | B & C CASTINGS | BARBERTON, Summit, OH | Pass | State |
| 2023-09-27 | CONTINENTAL RESOURCES / COURBET 4 27 16XHW 5 27 16XHW 13 27 16 | RATLIFF CITY, Carter, OK | Pass | State |
| 2023-09-27 | CONTINENTAL RESOURCES / COURBET 4 27 16XHW 5 27 16XHW 13 27 16 | RATLIFF CITY, Carter, OK | Pass | State |
| 2023-09-27 | BCE MACH III LLC / LNU 80 5HO LNU 81 4HO LNU 53 2HO | DOVER, Kingfisher, OK | Pass | State |
| 2023-09-27 | BCE MACH III LLC / LNU 80 5HO LNU 81 4HO LNU 53 2HO | DOVER, Kingfisher, OK | Pass | State |
| 2023-09-27 | PONDEROSA GATHERING LLC / PONDEROSA COMPRESSOR STATION 2 | QUINTON, Pittsburg, OK | Pass | State |
| 2023-09-27 | ELLWOOD NATL FORGE/IRVINE | IRVINE, Warren, PA | Pass | State |
| 2023-09-27 | ENERGY DEVS HONEY BROOK LLC/CAERNARVON TWP | NARVON, Lancaster, PA | Pass | State |
| 2023-09-27 | DIVERSIFIED MIDSTREAM LLC/TIOGA COMP STA | WELLSBORO, Tioga, PA | Pass | State |
| 2023-09-27 | WILLIAMS FIELD SVC CO LLC/ZICK COMP STA | KINGSLEY, Susquehanna, PA | Pass | State |
| 2023-09-27 | VICTAULIC COMMERCE PARK FACILITY | EASTON, Northampton, PA | Pass | State |
| 2023-09-27 | QUIKRETE CONSTRUCTION MATERIALS, LLC — high-priority violation on file | HARLEYVILLE, Dorchester, SC | Pass | State |
| 2023-09-27 | PL DEVELOPMENTS LLC — high-priority violation on file | PIEDMONT, Greenville, SC | Pass | State |
| 2023-09-27 | SYLVAMO NORTH AMERICA LLC - EASTOVER MILL | EASTOVER, Richland, SC | Pass | State |
| 2023-09-27 | TENNESSEE OPERATIONS OF EASTMAN CHEMICAL COMPANY — high-priority violation on file | KINGSPORT, Sullivan, TN | Pass | State |
| 2023-09-27 | SOUTH KARNES CENTRAL FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2023-09-27 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2023-09-27 | ASH GROVE CEMENT COMPANY | SEATTLE, King, WA | Pass | Local |
| 2023-09-27 | BOEING DEVELOPMENTAL CENTER | TUKWILA, King, WA | Pass | Local |
| 2023-09-27 | BOEING DEVELOPMENTAL CENTER | TUKWILA, King, WA | Pass | Local |
| 2023-09-27 | APPLETON GRP LLC — high-priority violation on file | SOUTH MILWAUKEE, Monroe, WI | Pass | State |
| 2023-09-27 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2023-09-27 | FELMAN PRODUCTION, LLC, LETART | LETART, Mason, WV | Pass | State |
| 2023-09-27 | ANTERO MIDSTREAM LLC, MIDDLEBOURNE III | WICK, Tyler, WV | Pass | State |
| 2023-09-27 | NEIL SIMPSON COMPLEX (BLACK HILLS CORPORATION) | GILLETTE, Campbell, WY | Pass | State |
| 2023-09-27 | NEIL SIMPSON COMPLEX (BLACK HILLS CORPORATION) | GILLETTE, Campbell, WY | Pass | State |
| 2023-09-27 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-27 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-27 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-27 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-27 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-27 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-09-27 | STEAMBOAT PROCESSING FACILITY (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.