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 |
|---|---|---|---|---|
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | State |
| 2020-09-24 | SOLID WASTE AUTHORITY OF PBC | WEST PALM BEACH, Palm Beach, FL | Pass | State |
| 2020-09-24 | SOLID WASTE AUTHORITY OF PBC | WEST PALM BEACH, Palm Beach, FL | Pass | State |
| 2020-09-24 | SOLID WASTE AUTHORITY OF PBC | WEST PALM BEACH, Palm Beach, FL | Pass | State |
| 2020-09-24 | SOLID WASTE AUTHORITY OF PBC | WEST PALM BEACH, Palm Beach, FL | Pass | State |
| 2020-09-24 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-24 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-24 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-24 | CARBO CERAMICS, INC. - TOOMSBORO PLANT — high-priority violation on file | TOOMSBORO, Wilkinson, GA | Pass | State |
| 2020-09-24 | INDUSTRIAL ENERGY APPLICATIONS | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2020-09-24 | INDUSTRIAL ENERGY APPLICATIONS | CEDAR RAPIDS, Linn, IA | Pass | Local |
| 2020-09-24 | INGREDION INC — high-priority violation on file | BEDFORD PARK, Cook, IL | Pass | State |
| 2020-09-24 | US MINERALS | COFFEEN, Montgomery, IL | Fail | State |
| 2020-09-24 | VALERO RENEWABLE FUELS COMPANY DBA VALERO LINDEN PLANT | LINDEN, Montgomery, IN | Pass | State |
| 2020-09-24 | VALERO RENEWABLE FUELS COMPANY DBA VALERO LINDEN PLANT | LINDEN, Montgomery, IN | Pass | State |
| 2020-09-24 | VALERO RENEWABLE FUELS COMPANY DBA VALERO LINDEN PLANT | LINDEN, Montgomery, IN | Pass | State |
| 2020-09-24 | VALERO RENEWABLE FUELS COMPANY DBA VALERO LINDEN PLANT | LINDEN, Montgomery, IN | Pass | State |
| 2020-09-24 | VALERO RENEWABLE FUELS COMPANY DBA VALERO LINDEN PLANT | LINDEN, Montgomery, IN | Pass | State |
| 2020-09-24 | VALERO RENEWABLE FUELS COMPANY DBA VALERO LINDEN PLANT | LINDEN, Montgomery, IN | Pass | State |
| 2020-09-24 | VALERO RENEWABLE FUELS COMPANY DBA VALERO LINDEN PLANT | LINDEN, Montgomery, IN | Pass | State |
| 2020-09-24 | SIGECO AB BROWN GENERATING STATION | MOUNT VERNON, Posey, IN | Pass | State |
| 2020-09-24 | METALX LLC DBA METALX WABASH | WABASH, Wabash, IN | Pass | State |
| 2020-09-24 | BLUESTEM ELECTRIC CO-OP - LEONARDVILLE SUBSTATION (AIR) | LEONARDVILLE, Riley, KS | Pass | State |
| 2020-09-24 | FPL ENERGY WYMAN LLC | YARMOUTH, Cumberland, ME | Pass | State |
| 2020-09-24 | DETROIT METROPOLITAN WAYNE COUNTY AIRPORT | DETROIT, Wayne, MI | Pass | State |
| 2020-09-24 | PCS PHOSPHATE COMPANY, INC. - AURORA | AURORA, Beaufort, NC | Pass | State |
| 2020-09-24 | CHUCK'S CONSTRUCTION MINE | CALABASH, Brunswick, NC | Pass | State |
| 2020-09-24 | DUKE ENERGY CORPORATION LCTS | STANLEY, Lincoln, NC | Pass | State |
| 2020-09-24 | NOVANT HEALTH PRESBYTERIAN MEDICAL CENTER, INC. | CHARLOTTE, Mecklenburg, NC | Pass | Local |
| 2020-09-24 | POET BIOREFINING-FAIRMONT LLC — high-priority violation on file | FAIRMONT, Fillmore, NE | N/A | State |
| 2020-09-24 | OSSIPEE AGGREGATES CORPORATION | OSSIPEE, Carroll, NH | Pass | State |
| 2020-09-24 | RAIDER COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2020-09-24 | COTTON DRAW - MOON COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2020-09-24 | COTTON DRAW - MOON COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2020-09-24 | CYPRESS 34 A CTB | MALAGA, Eddy, NM | Pass | State |
| 2020-09-24 | WESTERN REFINING - GALLUP REFINERY | GALLUP, McKinley, NM | Fail | State |
| 2020-09-24 | WESTERN REFINING - GALLUP REFINERY | GALLUP, McKinley, NM | Pass | State |
| 2020-09-24 | RED-ROCHESTER LLC AT EASTMAN BUSINESS PARK | GREECE, ROCHESTER, Monroe, NY | Pass | State |
| 2020-09-24 | KOSKI CONSTRUCTION CO | ASHTABULA, Ashtabula, OH | Pass | State |
| 2020-09-24 | KOSKI CONSTRUCTION CO | ASHTABULA, Ashtabula, OH | Pass | State |
| 2020-09-24 | SHELLY MATERIALS PLANT NO 82 | LIMA, Allen, OH | Pass | State |
| 2020-09-24 | HERRICK PAD 952535 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | HERRICK PAD 952535 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | HERRICK PAD 952535 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | BOLEN PAD 952350 | SARDIS, Monroe, OH | Pass | State |
| 2020-09-24 | THE MEDICAL CENTER COMPANY | CLEVELAND, Cuyahoga, OH | Pass | State |
| 2020-09-24 | OWENS CORNING ROOFING AND ASPHALT, LLC | MEDINA, Medina, OH | Pass | State |
| 2020-09-24 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2020-09-24 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2020-09-24 | CATOOSA TEST FACILITY LLC / HALLETT TEST SITE | HALLETT, Pawnee, OK | Pass | State |
| 2020-09-24 | CONTINENTAL RESOURCES / SYMPSON 6 7 6XH 7 7 6XH | PURDY, Stephens, OK | Pass | State |
| 2020-09-24 | EASTERN GAS TRANS & STORAGE/RURAL VLY COMP STA | KITTANNING, Armstrong, PA | Pass | State |
| 2020-09-24 | APPALACHIA MIDSTREAM SVC LLC/CHERRY COMP STA | DUSHORE, Sullivan, PA | Pass | State |
| 2020-09-24 | ALLEGHENY CNTY SANI AUTH/ALLEGHENY CNTY | PITTSBURGH, Allegheny, PA | Pass | Local |
| 2020-09-24 | CENTURY ALUMINUM OF SOUTH CAROLINA INC — high-priority violation on file | GOOSE CREEK, Berkeley, SC | Pass | State |
| 2020-09-24 | KYOCERA AVX COMPONENTS | FOUNTAIN INN, Greenville, SC | Pass | State |
| 2020-09-24 | PALMETTO PAVING LUGOFF | LUGOFF, Kershaw, SC | Pass | State |
| 2020-09-24 | POET BIOPROCESSING - CHANCELLOR, LLC — high-priority violation on file | CHANCELLOR, Turner, SD | Pass | State |
| 2020-09-24 | BUCKEYE TERMINALS, LLC - FAIRFAX TERMINAL | FAIRFAX, Fairfax (city), VA | Pass | State |
| 2020-09-24 | PORT TOWNSEND PAPER CORPORATION — high-priority violation on file | PORT TOWNSEND, Jefferson, WA | Pass | State |
| 2020-09-24 | HOLLYFRONTIER PUGET SOUND REFINERY | ANACORTES, Skagit, WA | Pass | Local |
| 2020-09-24 | NORTHWEST PIPELINE GP SUMNER | SUMNER, Pierce, WA | Pass | Local |
| 2020-09-24 | NORTHWEST PIPELINE GP SUMNER | SUMNER, Pierce, WA | Pass | Local |
| 2020-09-24 | NORTHWEST PIPELINE GP SUMNER | SUMNER, Pierce, WA | Pass | Local |
| 2020-09-24 | NORTHWEST PIPELINE GP SUMNER | SUMNER, Pierce, WA | Pass | Local |
| 2020-09-24 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2020-09-23 | PEMCO | LEESBURG, Cherokee, AL | Pass | State |
| 2020-09-23 | PEMCO | LEESBURG, Cherokee, AL | Pass | State |
| 2020-09-23 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2020-09-23 | WESTROCK COATED BOARD LLC-MAHRT MILL | PHENIX CITY, Russell, AL | Pass | State |
| 2020-09-23 | NATIONAL CEMENT CO OF ALABAMA — high-priority violation on file | RAGLAND, St. Clair, AL | Pass | State |
| 2020-09-23 | NATIONAL CEMENT CO OF ALABAMA — high-priority violation on file | RAGLAND, St. Clair, AL | Pass | State |
| 2020-09-23 | DESOTO GATHERING COMPANY, LLC - NORTHWEST CHARLEY CPF-2 | GREERS FERRY, Cleburne, AR | Pass | State |
| 2020-09-23 | DESOTO GATHERING COMPANY, LLC - NEW QUITMAN CPF-1 | QUITMAN, Faulkner, AR | Pass | State |
| 2020-09-23 | GERDAU MACSTEEL | FORT SMITH, Sebastian, AR | Pass | State |
| 2020-09-23 | GERDAU MACSTEEL | FORT SMITH, Sebastian, AR | Pass | State |
| 2020-09-23 | TESORO REFINING & MARKETING CO, LLC — high-priority violation on file | CARSON, Los Angeles, CA | Pass | Local |
| 2020-09-23 | COLTON POWER, LP | COLTON, San Bernardino, CA | Fail | Local |
| 2020-09-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, Kern, CA | Pass | Local |
| 2020-09-23 | AERA ENERGY LLC — high-priority violation on file | BAKERSFIELD, 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.