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 |
|---|---|---|---|---|
| 2020-08-25 | CAMPO VIEJO GAS PROCESSING PLANT | PLAINS, Yoakum, TX | Pass | State |
| 2020-08-25 | CAMPO VIEJO GAS PROCESSING PLANT | PLAINS, Yoakum, TX | Pass | State |
| 2020-08-25 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2020-08-25 | BP WEST COAST PRODUCTS LLC — high-priority violation on file | BLAINE, Whatcom, WA | Pass | Local |
| 2020-08-25 | SIERRA PACIFIC, INDUSTRIES | CENTRALIA, Lewis, WA | Pass | Local |
| 2020-08-25 | MILWAUKEE REGIONAL MEDICAL CENTER THERMAL SERVICES INC | MILWAUKEE, Monroe, WI | Pass | State |
| 2020-08-25 | STARK PAVEMENT CORP | MILWAUKEE, Monroe, WI | N/A | State |
| 2020-08-25 | MARY'S DRAW (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2020-08-24 | HILCORP ALASKA, LLC / GRANITE POINT PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2020-08-24 | HILCORP ALASKA, LLC / GRANITE POINT PLATFORM | KENAI, Kenai Peninsula, AK | Pass | State |
| 2020-08-24 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2020-08-24 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2020-08-24 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2020-08-24 | INTERNATIONAL PAPER COMPANY | PRATTVILLE, Autauga, AL | Pass | State |
| 2020-08-24 | DESOTO GATHERING COMPANY, LLC - WEST CUTTHROAT CPF-2 | QUITMAN, Cleburne, AR | Pass | State |
| 2020-08-24 | AES ALAMITOS STATION, LLC | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2020-08-24 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2020-08-24 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2020-08-24 | US GOVT, VETERANS AFFAIRS MEDICAL CENTER | LONG BEACH, Los Angeles, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | WEST KERN WATER DISTRICT | TAFT, Kern, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2020-08-24 | TRUE OIL - HIGHLANDS 5-64 15-16 PAD | WATKINS AREA, Arapahoe, CO | Pass | State |
| 2020-08-24 | INTERNATIONAL PAPER COMPANY | CANTONMENT, Escambia, FL | Pass | State |
| 2020-08-24 | TROJAN BATTERY COMPANY, LLC | SANDERSVILLE, Washington, GA | Pass | State |
| 2020-08-24 | TROJAN BATTERY COMPANY, LLC | SANDERSVILLE, Washington, GA | Pass | State |
| 2020-08-24 | TROJAN BATTERY COMPANY, LLC | SANDERSVILLE, Washington, GA | Pass | State |
| 2020-08-24 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-08-24 | ROAD DRS LLC | BELVIDERE, Boone, IL | Pass | State |
| 2020-08-24 | IACX ENERGY - PEAK FACILITY (AIR) | BELPRE, Edwards, KS | Pass | State |
| 2020-08-24 | CRNF - COFFEYVILLE (AIR) | COFFEYVILLE, Montgomery, KS | Pass | State |
| 2020-08-24 | LOGAN ALUMINUM INC | RUSSELLVILLE, Logan, KY | Pass | State |
| 2020-08-24 | TOYOTA MOTOR MANUFACTURING, KENTUCKY | GEORGETOWN (SCOTT), Scott, KY | Pass | State |
| 2020-08-24 | ANR PIPELINE CO - WOOLFOLK COMPRESSOR STATION | BIG RAPIDS, Mecosta, MI | Pass | State |
| 2020-08-24 | DTE ELECTRIC COMPANY - DEARBORN ENERGY CENTER | DEARBORN, Wayne, MI | Pass | State |
| 2020-08-24 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2020-08-24 | ROCHESTER PUBLIC UTILITIES WESTSIDE ENERGY STATION | ROCHESTER, Olmsted, MN | Fail | State |
| 2020-08-24 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | Pending | State |
| 2020-08-24 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | Pending | State |
| 2020-08-24 | GENERAL MOTORS LLC | WENTZVILLE, St. Charles, MO | Pending | State |
| 2020-08-24 | TRONOX LLC, HAMILTON FACILITY | HAMILTON, Monroe, MS | Pass | State |
| 2020-08-24 | TRONOX LLC, HAMILTON FACILITY | HAMILTON, Monroe, MS | Pass | State |
| 2020-08-24 | MID AMERICA AGRI PRODUCTS | MADRID, Perkins, NE | Pass | State |
| 2020-08-24 | JIMMY KONE FACILITY | LOVING, Eddy, NM | Pass | State |
| 2020-08-24 | PIRATE STATE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-08-24 | PIRATE STATE COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2020-08-24 | NORTH VALMY GENERATING STATION | VALMY, Humboldt, NV | Pass | State |
| 2020-08-24 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2020-08-24 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2020-08-24 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2020-08-24 | CARGILL, INC. - DAYTON | DAYTON, Montgomery, OH | Pass | State |
| 2020-08-24 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2020-08-24 | UNIVERSITY OF CINCINNATI | CINCINNATI, Hamilton, OH | Pass | State |
| 2020-08-24 | COTERRA ENERGY OPERATING CO / SHELLY 6 7H 3106X FACILITY | COGAR, Canadian, OK | Pass | State |
| 2020-08-24 | COTERRA ENERGY OPERATING CO / MEL BIA 1H 1003X FACILITY | GEARY, Canadian, OK | Pass | State |
| 2020-08-24 | XTO ENERGY INC / PETTIJOHN CDP | GENE AUTRY, Marshall, OK | Pass | State |
| 2020-08-24 | XTO ENERGY INC / PETTIJOHN CDP | GENE AUTRY, Marshall, OK | Pass | State |
| 2020-08-24 | XTO ENERGY INC / PETTIJOHN CDP | GENE AUTRY, Marshall, OK | Pass | State |
| 2020-08-24 | ET GATHERING PROCESSING LLC / TERRIER COMPRESSOR STATION | THOMAS, Custer, OK | Pass | State |
| 2020-08-24 | ET GATHERING PROCESSING LLC / SAINTS COMPRESSOR STATION | SHATTUCK, Ellis, OK | Pass | State |
| 2020-08-24 | HARRISON GYPSUM LLC DBA ARCOSA SPECIALT / BOUSE JUNCTION 1 FACILITY | WAYNOKA, Major, OK | Pass | State |
| 2020-08-24 | NFG MIDSTREAM COVINGTON LLC/SHAW COMP STA | MAINESBURG, Tioga, PA | Pass | State |
| 2020-08-24 | CHESAPEAKE APPALACHIA LLC/AMCOR WELLPAD | MESHOPPEN, Wyoming, PA | Pass | State |
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.