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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in 2020. It lists 33,437 stack tests recorded nationwide in 2020.