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 |
|---|---|---|---|---|
| 2023-08-01 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-08-01 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-08-01 | BP PRODUCTS NORTH AMERICA INC WHITING BUSINESS UNIT — high-priority violation on file | WHITING, Lake, IN | Pass | State |
| 2023-08-01 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-08-01 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-08-01 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-08-01 | BIO TOWN BIOGAS LLC & BIO TOWN AG INCORPORATED — high-priority violation on file | REYNOLDS, White, IN | Pass | State |
| 2023-08-01 | CENTURY ALUMINUM SEBREE LLC | ROBARDS, Henderson, KY | Fail | State |
| 2023-08-01 | EAST KY POWER COOP - SPURLOCK STATION | MAYSVILLE, Mason, KY | Pass | State |
| 2023-08-01 | NUCOR STEEL BRANDENBURG | BRANDENBURG, Meade, KY | Pass | State |
| 2023-08-01 | NUCOR STEEL BRANDENBURG | BRANDENBURG, Meade, KY | Pass | State |
| 2023-08-01 | NUCOR STEEL BRANDENBURG | BRANDENBURG, Meade, KY | Pass | State |
| 2023-08-01 | OWLS HEAD ALLOYS INC | BOWLING GREEN, Warren, KY | Pass | State |
| 2023-08-01 | CLEVELAND-CLIFFS STEEL CORPORATION DEARBORN WORKS | DEARBORN, Wayne, MI | Fail | State |
| 2023-08-01 | ZEELAND BOARD OF PUBLIC WORKS | ZEELAND, Ottawa, MI | Pass | State |
| 2023-08-01 | PEOPLES LANDFILL, INC. | BIRCH RUN, Saginaw, MI | Pass | State |
| 2023-08-01 | ZEELAND BOARD OF PUBLIC WORKS | ZEELAND, Ottawa, MI | Pass | State |
| 2023-08-01 | MINNESOTA POWER - BOSWELL ENERGY CENTER | COHASSET, Itasca, MN | Pass | State |
| 2023-08-01 | NORTHSHORE MINING CO - SILVER BAY | SILVER BAY, Lake, MN | Pass | State |
| 2023-08-01 | NORTHERN IRON LLC | SAINT PAUL, Ramsey, MN | N/A | State |
| 2023-08-01 | SHELDAHL FLEXIBLE TECHNOLOGIES INC - WEST FACILITY | NORTHFIELD, Rice, MN | Pass | State |
| 2023-08-01 | USAG AND FORT LEONARD WOOD | FORT LEONARD WOOD, Pulaski, MO | Pass | State |
| 2023-08-01 | LIBERTY AGGREGATES, LLC (PORT-0878) | PORTABLE, Undetermined, MO | Pass | State |
| 2023-08-01 | LIBERTY AGGREGATES, LLC (PORT-0878) | PORTABLE, Undetermined, MO | Pass | State |
| 2023-08-01 | LIBERTY AGGREGATES, LLC (PORT-0878) | PORTABLE, Undetermined, MO | Pass | State |
| 2023-08-01 | LIBERTY AGGREGATES, LLC (PORT-0878) | PORTABLE, Undetermined, MO | Pass | State |
| 2023-08-01 | LIBERTY AGGREGATES, LLC (PORT-0878) | PORTABLE, Undetermined, MO | Pass | State |
| 2023-08-01 | MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL | MOSS POINT, Jackson, MS | Pass | State |
| 2023-08-01 | WESTROCK KRAFT PAPER, LLC | ROANOKE RAPIDS, Halifax, NC | Pending | State |
| 2023-08-01 | MUDDY CREEK WWTP | WINSTON-SALEM, Forsyth, NC | Pass | Local |
| 2023-08-01 | BLYTHE BROTHERS ASPHALT COMPANY, LLC | CHARLOTTE, Mecklenburg, NC | Pass | Local |
| 2023-08-01 | GREAT RIVER ENERGY (GRE) - SPIRITWOOD STATION - AQ | SPIRITWOOD, Stutsman, ND | Pass | State |
| 2023-08-01 | AJ NONWOVENS-HAMPTON, LLC | HAMPTON, Rockingham, NH | Pass | State |
| 2023-08-01 | MICHAEL RYAN TB | LIVINGSTON WHEELER, Eddy, NM | Pass | State |
| 2023-08-01 | MICHAEL RYAN TB | LIVINGSTON WHEELER, Eddy, NM | Pass | State |
| 2023-08-01 | RAMBO COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2023-08-01 | RAMBO COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2023-08-01 | RAMBO COMPRESSOR STATION | CARLSBAD, Eddy, NM | Pass | State |
| 2023-08-01 | AVALON COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2023-08-01 | EOG - VIPER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2023-08-01 | EOG - VIPER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2023-08-01 | EOG - VIPER LOCALIZED GAS LIFT STATION | JAL, Lea, NM | Pass | State |
| 2023-08-01 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-01 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-01 | VALLOUREC STAR, LP | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - CROMIKA 34-10-5 PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - CROMIKA 34-10-5 PAD | CADIZ, Harrison, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - DEERSVILLE HN FRA PAD | DEERSVILLE, Harrison, OH | Pass | State |
| 2023-08-01 | EOG RESOURCES, INC. - DEERSVILLE HN FRA PAD | DEERSVILLE, Harrison, OH | Pass | State |
| 2023-08-01 | VALLEY ASPHALT #14 | NEWTOWN, Hamilton, OH | Fail | State |
| 2023-08-01 | TOM STACK LLC / SPINDLETAP COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2023-08-01 | ET GATHERING PROCESSING LLC / LINDSAY COMPRESSOR STATION | RUSH SPRINGS, Grady, OK | Pass | State |
| 2023-08-01 | ET GATHERING PROCESSING LLC / LINDSAY COMPRESSOR STATION | RUSH SPRINGS, Grady, OK | Pass | State |
| 2023-08-01 | ET GATHERING PROCESSING LLC / LINDSAY COMPRESSOR STATION | RUSH SPRINGS, Grady, OK | Pass | State |
| 2023-08-01 | ET GATHERING PROCESSING LLC / LINDSAY COMPRESSOR STATION | RUSH SPRINGS, Grady, OK | Pass | State |
| 2023-08-01 | GULFPORT MIDCON LLC / FOWLER C PAD | ALEX, Grady, OK | Pass | State |
| 2023-08-01 | MARKWEST OKLAHOMA GAS CO LLC / JACKSON COMPRESSOR STATION | SAYRE, Roger Mills, OK | Pass | State |
| 2023-08-01 | MARKWEST OKLAHOMA GAS CO LLC / JACKSON COMPRESSOR STATION | SAYRE, Roger Mills, OK | Pass | State |
| 2023-08-01 | JASPER WOOD PRODUCTS | JASPER, Lane, OR | Pass | Local |
| 2023-08-01 | TEXAS EASTERN TRANS LP/HOLBROOK STA | WIND RIDGE, Greene, PA | Pass | State |
| 2023-08-01 | MONROE ENERGY LLC/TRAINER — high-priority violation on file | TRAINER, Delaware, PA | Pass | State |
| 2023-08-01 | UGI MORAINE EAST GATHERING LLC/RENICK COMP STA | WEST SUNBURY, Butler, PA | Pass | State |
| 2023-08-01 | EXPAND OPERATING LLC/NR-23 FOUR BUCKS PAD | SUSQUEHANNA, Susquehanna, PA | Pass | State |
| 2023-08-01 | EXPAND OPERATING LLC/TI-07 CUPPER WELL PAD | LIBERTY, Tioga, PA | Pass | State |
| 2023-08-01 | SMITHFIELD PACKAGED MEATS CORP. | SIOUX FALLS, Minnehaha, SD | Pass | State |
| 2023-08-01 | POET BIOREFINING- OBION, LLC | OBION, Obion, TN | Pass | State |
| 2023-08-01 | TENNESSEE VALLEY AUTHORITY - CUMBERLAND FOSSIL PLANT — high-priority violation on file | CUMBERLAND CITY, Stewart, TN | Pass | State |
| 2023-08-01 | WESTROCK CONVERTING DALLAS MILL | DALLAS, Dallas, TX | Fail | State |
| 2023-08-01 | WEATHERFORD PLANT | WEATHERFORD, Parker, TX | Pass | State |
| 2023-08-01 | NUCOR STEEL | PLYMOUTH, Box Elder, UT | Pass | State |
| 2023-08-01 | NUCOR STEEL | PLYMOUTH, Box Elder, UT | Pass | State |
| 2023-08-01 | KENTUCKY POWER COMPANY, MITCHELL PLANT | MOUNDSVILLE, Marshall, WV | Pass | State |
| 2023-08-01 | WELL DRAW - AURORA COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-08-01 | WELL DRAW - AURORA COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-08-01 | WELL DRAW - AURORA COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-08-01 | WELL DRAW - AURORA COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-08-01 | WELL DRAW - AURORA COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-08-01 | WELL DRAW - AURORA COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-08-01 | WELL DRAW - AURORA COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2023-07-31 | GEORGIA-PACIFIC WOOD PRODUCTS, LLC--FORDYCE OSB | FORDYCE, Calhoun, AR | Pass | State |
| 2023-07-31 | GEORGIA-PACIFIC WOOD PRODUCTS, LLC--FORDYCE OSB | FORDYCE, Calhoun, AR | Fail | State |
| 2023-07-31 | APS OCOTILLO POWER PLANT | MARICOPA COUNTY, Maricopa, AZ | Pass | Local |
| 2023-07-31 | ENTERPRISE PRODUCTS OP- JACKRABBIT CS | PARACHUTE 9.5 MI. NW OF, Garfield, CO | Pass | State |
| 2023-07-31 | ENTERPRISE PRODUCTS OP- JACKRABBIT CS | PARACHUTE 9.5 MI. NW OF, Garfield, CO | Pass | State |
| 2023-07-31 | FLORIDA POWER & LIGHT (PTF) | HOMESTEAD, Miami-Dade, FL | Pass | State |
| 2023-07-31 | FLORIDA POWER & LIGHT (PTF) | HOMESTEAD, Miami-Dade, FL | Pass | State |
| 2023-07-31 | SOUTH FLORIDA WATER MANAGEMENT DISTRICT | PALM BEACH COUNTY, Palm Beach, FL | Pass | State |
| 2023-07-31 | SOUTH FLORIDA WATER MANAGEMENT DISTRICT | PALM BEACH COUNTY, Palm Beach, FL | Pass | State |
| 2023-07-31 | ATLANTA GAS LIGHT CO. — high-priority violation on file | BALL GROUND, Cherokee, GA | Pass | State |
| 2023-07-31 | ATLANTA GAS LIGHT CO. — high-priority violation on file | BALL GROUND, Cherokee, GA | Pass | State |
| 2023-07-31 | INTERNATIONAL PAPER - FLINT RIVER MILL | OGLETHORPE, Macon, GA | Pass | State |
| 2023-07-31 | USDA-NATIONAL ANIMAL DISEASE CENTER & NATIONAL VETERINARY SERVICE LABORATORY | AMES, Story, IA | Pass | State |
| 2023-07-31 | E & B PAVING LLC | MUNCIE, Delaware, IN | Pass | State |
| 2023-07-31 | E & B PAVING LLC | MUNCIE, Delaware, IN | Pass | State |
| 2023-07-31 | E & B PAVING LLC | MUNCIE, Delaware, IN | Pass | State |
| 2023-07-31 | E & B PAVING LLC | MUNCIE, Delaware, IN | Pass | State |
| 2023-07-31 | WASTE MANAGEMENT DISPOSAL SERVICES OF MAINE, INC. — high-priority violation on file | NORRIDGEWOCK, Somerset, ME | Pass | State |
| 2023-07-31 | CAMBRIA CO | LE SUEUR, Le Sueur, MN | Pass | State |
| 2023-07-31 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
| 2023-07-31 | CHOCTAW GENERATION LIMITED PARTNERSHIP, RED HILLS GENERATION FACILITY | ACKERMAN, Choctaw, MS | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.