EPA Air · stack tests by year
Air-emissions stack tests in 2021
- 35,950Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2021
- California 17,676
- Ohio 2,582
- Florida 1,540
- Indiana 1,495
- Oklahoma 1,318
- Georgia 1,189
- New Mexico 841
- Pennsylvania 788
- Alabama 621
- Mississippi 589
- Texas 574
- Arkansas 518
- Missouri 515
- Colorado 407
- Iowa 368
- Washington 334
- North Carolina 273
- Michigan 256
- Wisconsin 239
- Wyoming 235
- West Virginia 225
- Kentucky 222
- Delaware 222
- Montana 220
- South Carolina 217
- Minnesota 209
- Kansas 177
- Alaska 143
- Illinois 142
- Utah 140
- Nevada 136
- Virginia 131
- Nebraska 117
- Maine 110
- New Jersey 110
- New York 103
- Connecticut 99
- Tennessee 98
- North Dakota 93
- Arizona 93
- Idaho 90
- Louisiana 69
- Hawaii 64
- Maryland 56
- South Dakota 55
- District of Columbia 54
- New Hampshire 53
- Oregon 45
- Rhode Island 34
- Massachusetts 29
- Puerto Rico 19
- Vermont 17
Other years
Air-emissions stack tests recorded in 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-11-29 | ONEOK FIELD SERVICES CO LLC / CHEROKEE COMPRESSOR STATION | ERIN SPRINGS, Garvin, OK | Pass | State |
| 2021-11-29 | ONEOK FIELD SERVICES CO LLC / CHEROKEE COMPRESSOR STATION | ERIN SPRINGS, Garvin, OK | Pass | State |
| 2021-11-29 | DCP OPERATING CO LP / THUNDER COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2021-11-29 | DCP OPERATING CO LP / THUNDER COMPRESSOR STATION | BRAY, Stephens, OK | Pass | State |
| 2021-11-29 | REGENCY MARCELLUS GAS GATHERING LLC/BOBST MOUNTAIN COMP STA | COGAN STA, Lycoming, PA | Pass | State |
| 2021-11-29 | UGI AUBURN GATHERING LLC/ MANNING COMPRESSOR LNG STA | MESHOPPEN, Wyoming, PA | Pass | State |
| 2021-11-29 | NORTH LONGHORN CENTRAL TANK BATTERY | KARNES CITY, Karnes, TX | Pass | State |
| 2021-11-29 | GAS TRANSMISSION NORTHWEST, LLC | WASHINGTON, Undetermined, WA | Pass | Local |
| 2021-11-29 | MICROSOFT CHEYENNE DATA CENTER (MICROSOFT CORPORATION) | CHEYENNE, Laramie, WY | Pass | State |
| 2021-11-28 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2021-11-27 | IRVING CONSUMER PRODUCTS, INC. - MACON | MACON, Bibb, GA | Pass | State |
| 2021-11-26 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2021-11-26 | BRUNSWICK CELLULOSE LLC | BRUNSWICK, Glynn, GA | Pass | State |
| 2021-11-24 | RECONSERVE OF CALIFORNIA - STOCKTON INC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-11-24 | RECONSERVE OF CALIFORNIA - STOCKTON INC | STOCKTON, San Joaquin, CA | Pass | Local |
| 2021-11-24 | PLAINFIELD RENEWABLE ENERGY LLC | PLAINFIELD, Litchfield, CT | Fail | State |
| 2021-11-24 | CLEVELAND-CLIFFS BURNS HARBOR LLC — high-priority violation on file | BURNS HARBOR, Porter, IN | Pass | State |
| 2021-11-24 | BIOGEN | RESEARCH TRIANGLE PARK, Wake, NC | Pass | State |
| 2021-11-24 | MICKLETON ENERGY CENTER | EAST GREENWICH, TOWNSHIP OF, Gloucester, NJ | Pass | State |
| 2021-11-24 | TGP COMPRESSOR STATION 245 | WINFIELD, Herkimer, NY | Pass | State |
| 2021-11-24 | DCP OPERATING CO LP / CROSSROADS COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2021-11-24 | KINDER MORGAN LIQUIDS TERM/PHILA — high-priority violation on file | PHILADELPHIA, Philadelphia, PA | Pass | Local |
| 2021-11-24 | HORRY COUNTY SOLID WASTE AUTHORITY INC | CONWAY, Horry, SC | Pass | State |
| 2021-11-24 | NIPPON DYNAWAVE PACKAGING COMPANY LLC — high-priority violation on file | LONGVIEW, Cowlitz, WA | Pass | State |
| 2021-11-24 | ROXUL USA INC., RAN FACILITY | RANSON, Jefferson, WV | Pass | State |
| 2021-11-24 | T55 COMPRESSOR STATION (THUNDER CREEK GAS SERVICES) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2021-11-23 | TULARE CITY WASTE WATER PLANT — high-priority violation on file | TULARE, Tulare, CA | Pass | Local |
| 2021-11-23 | AMERITERPENES, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2021-11-23 | AMERITERPENES, LLC | JACKSONVILLE, Duval, FL | Pass | State |
| 2021-11-23 | MARION COUNTY BOARD OF CO COMMISSIONERS | OCALA, Marion, FL | Pass | State |
| 2021-11-23 | MARION COUNTY BOARD OF CO COMMISSIONERS | OCALA, Marion, FL | Pass | State |
| 2021-11-23 | MARION COUNTY BOARD OF CO COMMISSIONERS | OCALA, Marion, FL | Pass | State |
| 2021-11-23 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-23 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-23 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-23 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-23 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-23 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-23 | SUGAR CANE GROWERS CO-OP | BELLE GLADE, Palm Beach, FL | Pass | State |
| 2021-11-23 | INTERFOR U.S. INC. - BAXLEY SAWMILL | BAXLEY, Appling, GA | Pass | State |
| 2021-11-23 | INTERFOR U.S. INC. - BAXLEY SAWMILL | BAXLEY, Appling, GA | Pass | State |
| 2021-11-23 | CARAUSTAR INDUSTRIES, INC. | AUSTELL, Cobb, GA | Pass | State |
| 2021-11-23 | CARAUSTAR INDUSTRIES, INC. | AUSTELL, Cobb, GA | Pass | State |
| 2021-11-23 | CARAUSTAR INDUSTRIES, INC. | AUSTELL, Cobb, GA | Pass | State |
| 2021-11-23 | CARAUSTAR INDUSTRIES, INC. | AUSTELL, Cobb, GA | Pass | State |
| 2021-11-23 | NITTA BELT | SUWANEE, Forsyth, GA | Pass | State |
| 2021-11-23 | CHARTER MANUFACTURING CO INC | WOODSTOCK, McHenry, IL | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | THE ANDERSONS RENEWABLES LLC — high-priority violation on file | LOGANSPORT, Cass, IN | Pass | State |
| 2021-11-23 | C & D TECHNOLOGIES INC | ATTICA, Fountain, IN | Pass | State |
| 2021-11-23 | C & D TECHNOLOGIES INC | ATTICA, Fountain, IN | Pass | State |
| 2021-11-23 | INDUSTRIAL STEEL CONSTRUCTION INC | GARY, Lake, IN | Pass | State |
| 2021-11-23 | INDUSTRIAL STEEL CONSTRUCTION INC | GARY, Lake, IN | Pass | State |
| 2021-11-23 | INDUSTRIAL STEEL CONSTRUCTION INC | GARY, Lake, IN | Pass | State |
| 2021-11-23 | INDUSTRIAL STEEL CONSTRUCTION INC | GARY, Lake, IN | Pass | State |
| 2021-11-23 | CROSSROADS ECO CENTER | MORRISTOWN, Shelby, IN | Pass | State |
| 2021-11-23 | RIVER ROCK OPERATING - GRAYBILL STATION (DEHY)(AIR) | MOUND VALLEY, Labette, KS | Pass | State |
| 2021-11-23 | KOCH METHANOL ST JAMES LLC - KOCH METHANOL FACILITY | ST. JAMES, St. James, LA | Pass | State |
| 2021-11-23 | ANR PIPELINE CO - WOOLFOLK COMPRESSOR STATION | BIG RAPIDS, Mecosta, MI | Pass | State |
| 2021-11-23 | ALBAR INDUSTRIES, INC. | LAPEER, Lapeer, MI | Fail | State |
| 2021-11-23 | ADM - MARSHALL | MARSHALL, Lyon, MN | Pass | State |
| 2021-11-23 | OZARK MOUNTAIN TECHNOLOGIES LLC | CUBA, Crawford, MO | Pass | State |
| 2021-11-23 | RIVER CEMENT CO. DBA BUZZI UNICEM USA SELMA PLANT | FESTUS, Jefferson, MO | Pass | State |
| 2021-11-23 | J JOSEPHSON INC | SOUTH HACKENSACK, Bergen, NJ | Pass | State |
| 2021-11-23 | BRININSTOOL COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2021-11-23 | LEO THORSNESS FACILITY | JAL, Lea, NM | Pass | State |
| 2021-11-23 | CEMENT MANUFACTURING PLANT — high-priority violation on file | FERNLEY, Lyon, NV | Incomplete | State |
| 2021-11-23 | HIGH DESERT STATE PRISON — high-priority violation on file | INDIAN SPRINGS, Clark, NV | Pass | Local |
| 2021-11-23 | KINGS PLAZA ENERGY LLC | BROOKLYN, Kings, NY | Pass | U.S. EPA |
| 2021-11-23 | KINGS PLAZA ENERGY LLC | BROOKLYN, Kings, NY | Pass | U.S. EPA |
| 2021-11-23 | KINGS PLAZA ENERGY LLC | BROOKLYN, Kings, NY | Pass | U.S. EPA |
| 2021-11-23 | KINGS PLAZA ENERGY LLC | BROOKLYN, Kings, NY | Pass | U.S. EPA |
| 2021-11-23 | PRECISION PRODUCTS GROUP, INC. | APPLE CREEK, Wayne, OH | Pass | State |
| 2021-11-23 | PERSTORP POLYOLS, INC. | TOLEDO, Lucas, OH | Pass | State |
| 2021-11-23 | PERSTORP POLYOLS, INC. | TOLEDO, Lucas, OH | Pass | State |
| 2021-11-23 | PERSTORP POLYOLS, INC. | TOLEDO, Lucas, OH | Pass | State |
| 2021-11-23 | CROWN CORK & SEAL — high-priority violation on file | TOLEDO, Lucas, OH | Fail | State |
| 2021-11-23 | MARKWEST OKLAHOMA GAS CO LLC / DAVID BOWERS COMPRESSOR STATION | SWEETWATER, Beckham, OK | Pass | State |
| 2021-11-23 | VALIDUS ENERGY II MIDCON LLC / LUDWIG 2 22 15XH 3 22 15XH 4 22 15XH | WATONGA, Blaine, OK | Pass | State |
| 2021-11-23 | PRESIDIO PETROLEUM LLC / PEARLGIRL 4 PAD | ARNETT, Ellis, OK | Pass | State |
| 2021-11-23 | UNBRIDLED RESOURCES LLC / KNOWLES 25X36 KENNY PAD | ARNETT, Ellis, OK | Pass | State |
| 2021-11-23 | EOG RESOURCES INC / GALAXY CTB PRODUCTION FACILITY | TUTTLE, Grady, OK | Pass | State |
| 2021-11-23 | SANGUINE GAS EXPLORATION LLC / WEEKS BROTHERS 1 22 27H 2 22 27H | MCALESTER, Pittsburg, OK | Pass | State |
| 2021-11-23 | PRESIDIO PETROLEUM LLC / BECK 1 11H | CHEYENNE, Roger Mills, OK | Pass | State |
| 2021-11-23 | MAGNESITA REFRACTORIES/YORK — high-priority violation on file | YORK, York, PA | Pass | State |
| 2021-11-23 | INTER POWER AHLCON LP/COLVER POWER PROJ — high-priority violation on file | COLVER, Cambria, PA | Pass | State |
| 2021-11-23 | CLEVELAND CLIFFS PLATE/COATESVILLE | COATESVILLE, Chester, PA | Pass | State |
| 2021-11-23 | FIRST QUALITY PRINT & PACKAGING LLC (FQP&P LLC) | ANDERSON, Anderson, SC | Pass | State |
| 2021-11-23 | CONSTANTIA BLYTHEWOOD LLC — high-priority violation on file | BLYTHEWOOD, Richland, SC | Pass | State |
| 2021-11-23 | MILLBROOK HUTTERITE BRETHREN | MITCHELL, Davison, SD | Pass | State |
| 2021-11-23 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2021-11-23 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2021-11-23 | PEARSALL POWER PLANT | PEARSALL, Frio, TX | Pass | State |
| 2021-11-23 | MOLSON COORS BEVERAGE COMPANY USA LLC | ELKTON, Rockingham, VA | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.