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 |
|---|---|---|---|---|
| 2020-09-18 | MIAMI UNIVERSITY | OXFORD, Butler, OH | Pass | State |
| 2020-09-18 | ET GATHERING PROCESSING LLC / INGERSOLL COMPRESSOR STATION | INGERSOLL, Alfalfa, OK | Pass | State |
| 2020-09-18 | ET GATHERING PROCESSING LLC / DRY CREEK COMPRESSOR STATION | BURLINGTON, Alfalfa, OK | Pass | State |
| 2020-09-18 | ET GATHERING PROCESSING LLC / K 9 COMPRESSOR STATION | NASH, Grant, OK | Pass | State |
| 2020-09-18 | READING TERM DE LLC/SINKING SPRING E & W TERM | SINKING SPRING, Berks, PA | Pass | State |
| 2020-09-18 | GCC DACOTAH — high-priority violation on file | RAPID CITY, Pennington, SD | Pass | State |
| 2020-09-18 | MONT BELVIEU COMPLEX — high-priority violation on file | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-09-18 | MONT BELVIEU COMPLEX — high-priority violation on file | MONT BELVIEU, Chambers, TX | Pass | State |
| 2020-09-18 | VALERO REFINING TEXAS CITY REFINERY | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-09-18 | VALERO REFINING TEXAS CITY REFINERY | TEXAS CITY, Galveston, TX | Pass | State |
| 2020-09-18 | EXXONMOBIL BAYTOWN REFINERY — high-priority violation on file | BAYTOWN, Harris, TX | Pass | State |
| 2020-09-18 | EXXONMOBIL BAYTOWN REFINERY — high-priority violation on file | BAYTOWN, Harris, TX | Pass | State |
| 2020-09-18 | EQUISTAR CHEMICALS CHANNELVIEW COMPLEX — high-priority violation on file | CHANNELVIEW, Harris, TX | Pass | State |
| 2020-09-18 | KINDER MORGAN CRUDE & CONDENSATE KMCC SPLITTER FACILITY — high-priority violation on file | GALENA PARK, Harris, TX | Pass | State |
| 2020-09-18 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2020-09-18 | NORTHWEST PIPELINE LLC- MOUNT VERNON | MOUNT VERNON, Skagit, WA | Pass | Local |
| 2020-09-18 | POST POINT WWTP SEWAGE SLUDGE INCINERATOR — high-priority violation on file | WHATCOM COUNTY, Whatcom, WA | Pass | Local |
| 2020-09-18 | VIRGINIA ELECTRIC AND POWER COMPANY, MT. STORM | MT. STORM, Grant, WV | Pass | State |
| 2020-09-18 | LOVELL PLANT (GEORGIA-PACIFIC GYPSUM) | LOVELL, Big Horn, WY | Pass | State |
| 2020-09-18 | LOVELL PLANT (GEORGIA-PACIFIC GYPSUM) | LOVELL, Big Horn, WY | Pass | State |
| 2020-09-18 | WYGEN II POWER STATION (OWNER: CHEYENNE LIGHT FUEL AND POWER) | GILLETTE, Campbell, WY | Pass | State |
| 2020-09-18 | WESTVACO FACILITY (WE SODA WYOMING LP) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2020-09-17 | US AIR FORCE (EIELSON) / EIELSON AIR FORCE BASE — high-priority violation on file | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-09-17 | FAIRBANKS GOLD MINING INC / FORT KNOX MINE | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-09-17 | FAIRBANKS GOLD MINING INC / FORT KNOX MINE | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-09-17 | FAIRBANKS GOLD MINING INC / FORT KNOX MINE | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-09-17 | FAIRBANKS GOLD MINING INC / FORT KNOX MINE | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-09-17 | FAIRBANKS GOLD MINING INC / FORT KNOX MINE | FAIRBANKS, Fairbanks North Star, AK | Pass | State |
| 2020-09-17 | GOLDEN VALLEY ELECTRIC ASSOCIATION / HEALY POWER PLANT — high-priority violation on file | HEALY, Denali, AK | Pass | State |
| 2020-09-17 | TRANSCONTINENTAL GAS PIPE LINE COMPANY L | ROCKFORD, Coosa, AL | Pass | State |
| 2020-09-17 | WESTROCK COMPANY, LLC | STEVENSON, Jackson, AL | Pass | State |
| 2020-09-17 | SOUTHERN NATURAL GAS | AUBURN, Lee, AL | Pass | State |
| 2020-09-17 | SOUTHERN NATURAL GAS | AUBURN, Lee, AL | Pass | State |
| 2020-09-17 | WARRIOR MET COAL GAS, LLC | NORTHPORT, Tuscaloosa, AL | Pass | State |
| 2020-09-17 | WARRIOR MET COAL GAS, LLC | NORTHPORT, Tuscaloosa, AL | Pass | State |
| 2020-09-17 | WARRIOR MET COAL GAS, LLC | NORTHPORT, Tuscaloosa, AL | Pass | State |
| 2020-09-17 | WARRIOR MET COAL GAS, LLC | NORTHPORT, Tuscaloosa, AL | Pass | State |
| 2020-09-17 | MAGELLAN PIPELINE CO LP- NLR - SOUTH TERMINAL | NORTH LITTLE ROCK, Pulaski, AR | Pass | State |
| 2020-09-17 | ATLAS ASPHALT, INC. - POCAHONTAS | POCAHONTAS, White, AR | Pass | State |
| 2020-09-17 | CAPITAL SAND COMPANY , INC.--HARRISBURG SOUTH | HARRISBURG, Poinsett, AR | Pass | State |
| 2020-09-17 | EASTERN MUNICIPAL WATER DISTRICT | TEMECULA, Riverside, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | CHEVRON USA INC- HEAVY OIL PRODUCTION | COALINGA, Fresno, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | Local |
| 2020-09-17 | SENECA RESOURCES — high-priority violation on file | MCKITTRICK, Kern, CA | Pass | 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.