EPA Air · stack tests by year
Air-emissions stack tests in 2020
- 33,437Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2020
- California 15,352
- Ohio 2,194
- Florida 1,532
- Oklahoma 1,517
- Indiana 1,473
- Georgia 1,147
- New Mexico 846
- Pennsylvania 725
- Alabama 674
- Texas 617
- Missouri 607
- Arkansas 589
- Mississippi 438
- Colorado 429
- Washington 407
- Iowa 355
- North Carolina 274
- Wyoming 235
- Wisconsin 229
- Michigan 222
- South Carolina 221
- Montana 217
- Minnesota 213
- Delaware 211
- Kentucky 184
- West Virginia 175
- Utah 158
- Tennessee 149
- Kansas 144
- Nebraska 142
- Alaska 141
- Maine 136
- Nevada 134
- Virginia 132
- Illinois 129
- North Dakota 129
- New Jersey 122
- Connecticut 110
- Arizona 97
- New York 93
- Hawaii 84
- Louisiana 83
- Idaho 81
- New Hampshire 72
- Maryland 46
- South Dakota 46
- Oregon 39
- Rhode Island 30
- District of Columbia 30
- Vermont 17
- Massachusetts 7
- Puerto Rico 3
Other years
Air-emissions stack tests recorded in 2020
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | CALIFORNIA RESOURCES PRODUCTION CORP — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-11-24 | TULARE CITY WASTE WATER PLANT — high-priority violation on file | TULARE, Tulare, CA | Pass | Local |
| 2020-11-24 | PREFERRED MATERIALS, INC | NAPLES, Collier, FL | Pass | State |
| 2020-11-24 | GOLD BOND BUILDING PRODUCTS, LLC | GIBSONTON, Hillsborough, FL | Pass | State |
| 2020-11-24 | AG PROCESSING INC-EAGLE GROVE | EAGLE GROVE, Wright, IA | Pass | State |
| 2020-11-24 | AG PROCESSING INC-EAGLE GROVE | EAGLE GROVE, Wright, IA | Pass | State |
| 2020-11-24 | CARGILL INC-CORN MILLING | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2020-11-24 | FORT HALL MINE ROAD LANDFILL | POCATELLO, Bannock, ID | Pass | State |
| 2020-11-24 | ALUMINUM RECOVERY TECHNOLOGIES LTD | KENDALLVILLE, Noble, IN | Pass | State |
| 2020-11-24 | ALUMINUM RECOVERY TECHNOLOGIES LTD | KENDALLVILLE, Noble, IN | Pass | State |
| 2020-11-24 | ALUMINUM RECOVERY TECHNOLOGIES LTD | KENDALLVILLE, Noble, IN | Pass | State |
| 2020-11-24 | ALUMINUM RECOVERY TECHNOLOGIES LTD | KENDALLVILLE, Noble, IN | Pass | State |
| 2020-11-24 | ALUMINUM RECOVERY TECHNOLOGIES LTD | KENDALLVILLE, Noble, IN | Pass | State |
| 2020-11-24 | ALUMINUM RECOVERY TECHNOLOGIES LTD | KENDALLVILLE, Noble, IN | Pass | State |
| 2020-11-24 | IACX ENERGY - PEAK FACILITY (AIR) | BELPRE, Edwards, KS | Pass | State |
| 2020-11-24 | EVONIK CORP - HAYSVILLE (AIR) | HAYSVILLE, Sedgwick, KS | Pass | State |
| 2020-11-24 | TRUNKLINE GAS COMPANY LLC - CENTERVILLE COMPRESSOR STATION | CENTERVILLE, St. Mary, LA | Pass | State |
| 2020-11-24 | SAPPI NORTH AMERICA, INC. | WESTBROOK, Cumberland, ME | Pass | State |
| 2020-11-24 | ANR PIPELINE-COLD SPRINGS12 /BLUE LAKE/ COLD SPRINGS 1 | MANCELONA, Kalkaska, MI | Pass | State |
| 2020-11-24 | MICHIGAN METAL COATINGS | PORT HURON, St. Clair, MI | Pass | State |
| 2020-11-24 | GREDE LLC - SAINT CLOUD | SAINT CLOUD, Benton, MN | Pass | State |
| 2020-11-24 | AUDUBON MATERIALS, LLC - SUGAR CREEK PLANT | SUGAR CREEK, Jackson, MO | Pending | State |
| 2020-11-24 | GASTON COUNTY LANDFILL - HARDIN SITE | DALLAS, Gaston, NC | Pass | State |
| 2020-11-24 | CARGILL INC — high-priority violation on file | BLAIR, Washington, NE | Pass | State |
| 2020-11-24 | YANKEE HILL BRICK & TILE | LINCOLN, Lancaster, NE | Pass | State |
| 2020-11-24 | ELYRIA FOUNDRY | ELYRIA, Lorain, OH | Pass | State |
| 2020-11-24 | ELYRIA FOUNDRY | ELYRIA, Lorain, OH | Pass | State |
| 2020-11-24 | ELYRIA FOUNDRY | ELYRIA, Lorain, OH | Pass | State |
| 2020-11-24 | NEWCOMER FUNERAL HOME - KETTERING OH | KETTERING, Montgomery, OH | Pass | State |
| 2020-11-24 | NEWCOMER FUNERAL HOME - KETTERING OH | KETTERING, Montgomery, OH | Pass | State |
| 2020-11-24 | PRESIDIO PETROLEUM LLC / USA 1 11HC | CRAWFORD, Roger Mills, OK | Pass | State |
| 2020-11-24 | PALO DURO G AND P OKLAHOMA LP / DILL CITY COMPRESSOR STATION | DILL CITY, Washita, OK | Pass | State |
| 2020-11-24 | PALO DURO G AND P OKLAHOMA LP / DILL CITY COMPRESSOR STATION | DILL CITY, Washita, OK | Pass | State |
| 2020-11-24 | WATSONTOWN BRICK CO/WATSONTOWN PLT | WATSONTOWN, Northumberland, PA | Pass | State |
| 2020-11-24 | MILLER MILLING COMPANY LLC | WINCHESTER, Frederick, VA | Pass | State |
| 2020-11-24 | AVISTA - NECT | SPOKANE, Spokane, WA | Fail | Local |
| 2020-11-24 | LANXESS CORPORATION — high-priority violation on file | KALAMA, Cowlitz, WA | N/A | Local |
| 2020-11-24 | TRANSALTA CENTRALIA GENERATION, LLC — high-priority violation on file | CENTRALIA, Lewis, WA | Pass | Local |
| 2020-11-24 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2020-11-24 | AMERICAN BITUMINOUS POWER PARTNERS, L. P., GRANT | GRANT TOWN, Marion, WV | Pass | State |
| 2020-11-23 | ARKANSAS LIME COMPANY | BATESVILLE, Independence, AR | Pass | State |
| 2020-11-23 | WINDSOR WINDOWS & DOORS | WEST DES MOINES, Polk, IA | Pass | Local |
| 2020-11-23 | GREDE LLC - SAINT CLOUD | SAINT CLOUD, Benton, MN | Pass | State |
| 2020-11-23 | MAYO CLINIC HOSPITAL - SAINT MARYS CAMPUS | ROCHESTER, Olmsted, MN | Pass | State |
| 2020-11-23 | OWENS-CORNING STATELINE | JOPLIN, Jasper, MO | Pending | State |
| 2020-11-23 | ONEOK ROCKIES MIDSTREAM, L.L.C. - ANTELOPE COMPRESSOR STATION - AQ | NEW TOWN, McKenzie, ND | Pending | State |
| 2020-11-23 | FIREBALL GROUP LLC DATA CENTER — high-priority violation on file | PAPILLION, Sarpy, NE | Pass | State |
| 2020-11-23 | EMPIRE ABO CS | ARTESIA, Eddy, NM | Pass | State |
| 2020-11-23 | EMPIRE ABO CS | ARTESIA, Eddy, NM | Pass | State |
| 2020-11-23 | EUNICE NORTH COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2020-11-23 | EUNICE NORTH COMPRESSOR STATION | EUNICE, Lea, NM | Pass | State |
| 2020-11-23 | TRI-COUNTY ASPHALT MATERIALS INC | YOUNGSTOWN, Mahoning, OH | Pass | State |
| 2020-11-23 | ONEOK GAS TRANSPORTATION LLC / RED OAK COMPRESSOR STATION | RED OAK, Latimer, OK | Pass | State |
| 2020-11-23 | ONEOK GAS TRANSPORTATION LLC / RED OAK COMPRESSOR STATION | RED OAK, Latimer, OK | Pass | State |
| 2020-11-23 | PRESIDIO PETROLEUM LLC / MCREE 1 5H | CANUTE, Washita, OK | Pass | State |
| 2020-11-23 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2020-11-23 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2020-11-23 | TRANSALTA CENTRALIA GENERATION, LLC — high-priority violation on file | CENTRALIA, Lewis, WA | N/A | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.