EPA Air · stack tests by year
Air-emissions stack tests in 2019
- 26,261Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
States, 2019
- California 6,897
- Ohio 2,684
- Oklahoma 1,656
- Florida 1,597
- Indiana 1,595
- Georgia 1,325
- Pennsylvania 723
- Alabama 687
- Arkansas 664
- Texas 620
- Mississippi 604
- Iowa 457
- Washington 445
- Colorado 431
- New Mexico 421
- Missouri 409
- North Carolina 297
- Minnesota 285
- Montana 272
- Michigan 268
- Wyoming 252
- Wisconsin 251
- South Carolina 231
- Louisiana 225
- Delaware 189
- Kentucky 188
- Utah 184
- West Virginia 176
- Kansas 175
- Alaska 159
- North Dakota 154
- Nebraska 149
- Illinois 138
- Connecticut 124
- New York 122
- Tennessee 121
- Maine 110
- Virginia 107
- Nevada 107
- Idaho 95
- Hawaii 93
- Oregon 88
- New Hampshire 78
- Arizona 77
- New Jersey 61
- South Dakota 59
- Massachusetts 58
- Maryland 54
- Rhode Island 45
- District of Columbia 33
- Vermont 21
Other years
Air-emissions stack tests recorded in 2019
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2019-09-17 | PREWITT ESCALANTE GENERATING STATION | PREWITT, McKinley, NM | Pass | State |
| 2019-09-17 | VALENCIA POWER PLANT | BELEN, Valencia, NM | Pass | State |
| 2019-09-17 | VALENCIA POWER PLANT | BELEN, Valencia, NM | Pass | State |
| 2019-09-17 | ISLIP MACARTHUR RESOURCE RECOVERY FACILITY | RONKONKOMA, Suffolk, NY | Pass | State |
| 2019-09-17 | LIGNETICS OF NEW ENGLAND, INC - SCHUYLER | FRANKFORT, Herkimer, NY | Pass | State |
| 2019-09-17 | CARDINAL POWER PLANT (CARDINAL OPERATING COMPANY) | BRILLIANT, Jefferson, OH | Pass | State |
| 2019-09-17 | CARDINAL POWER PLANT (CARDINAL OPERATING COMPANY) | BRILLIANT, Jefferson, OH | Pass | State |
| 2019-09-17 | TOM STACK LLC / ANTHEM COMPRESSOR FACILITY — high-priority violation on file | EL RENO, Canadian, OK | Pass | State |
| 2019-09-17 | NATURAL GAS PIPELINE CO OF AMERICA / STATION 156 | MOUNTAIN VIEW, Kiowa, OK | Pass | State |
| 2019-09-17 | OG AND E / RIVER VALLEY GENERATING STATION | PANAMA, Le Flore, OK | Pass | State |
| 2019-09-17 | OG AND E / RIVER VALLEY GENERATING STATION | PANAMA, Le Flore, OK | Pass | State |
| 2019-09-17 | TPL ARKOMA HOLDINGS LLC / EAST ROCKPILE TREATER | MCALESTER, Pittsburg, OK | Pass | State |
| 2019-09-17 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2019-09-17 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2019-09-17 | TMF-RIG, LLC — high-priority violation on file | BOARDMAN, Morrow, OR | Pass | State |
| 2019-09-17 | HAMPTON LUMBER MILLS, INC. DBA TILLAMOOK LUMBER CO | TILLAMOOK, Tillamook, OR | Pass | State |
| 2019-09-17 | PQ LLC/CHESTER | CHESTER, Delaware, PA | Pass | State |
| 2019-09-17 | ELLWOOD QUALITY STEELS CO/NEW CASTLE PLT | NEW CASTLE, Lawrence, PA | Pass | State |
| 2019-09-17 | CONSOL PA COAL CO LLC/BAILEY PREP PLT — high-priority violation on file | WEST FINLEY, Greene, PA | Pass | State |
| 2019-09-17 | UGI TEXAS CREEK LLC/LOVELL COMP STA | ROARING BRANCH, Tioga, PA | Pass | State |
| 2019-09-17 | REGENCY MARCELLUS GAS GATHERING LLC/POORMAN COMP STA | LOCK HAVEN, Clinton, PA | Pass | State |
| 2019-09-17 | REGENCY MARCELLUS GAS GATHERING LLC/POORMAN COMP STA | LOCK HAVEN, Clinton, PA | Pass | State |
| 2019-09-17 | CONOY PROD LLC/BAINBRIDGE | BAINBRIDGE, Lancaster, PA | Pass | State |
| 2019-09-17 | USS/CLAIRTON WORKS — high-priority violation on file | CLAIRTON, Allegheny, PA | Pass | Local |
| 2019-09-17 | CARDIN FOREST PRODUCTS, LLC | SOUTH PITTSBURG, Marion, TN | Fail | State |
| 2019-09-17 | MAGRIS TALC USA INC | LUDLOW, Windsor, VT | Pass | State |
| 2019-09-17 | GOLDENDALE GENERATING STATION | GOLDENDALE, Klickitat, WA | Pass | State |
| 2019-09-17 | NORTHWEST PIPELINE CORP SUMAS | SUMAS, Whatcom, WA | Pass | Local |
| 2019-09-17 | NORTHWEST PIPELINE CORP SUMAS | SUMAS, Whatcom, WA | Pass | Local |
| 2019-09-17 | WAUPACA FOUNDRY, INC.-PLANT 4 | MARINETTE, Marinette, WI | Pass | State |
| 2019-09-17 | KOHLER CO - METALS PROCESSING COMPLEX | KOHLER, Taylor, WI | Pass | State |
| 2019-09-17 | WAUPACA FOUNDRY INC - PLANT 1 | WAUPACA, Waushara, WI | Pass | State |
| 2019-09-17 | WAUPACA FOUNDRY INC - PLANT 2 & 3 | WAUPACA, Waushara, WI | Pass | State |
| 2019-09-17 | WISCONSIN RAPIDS MILL | WISCONSIN RAPIDS, Menominee, WI | Pass | State |
| 2019-09-17 | WISCONSIN RAPIDS MILL | WISCONSIN RAPIDS, Menominee, WI | Pass | State |
| 2019-09-17 | EASTERN GAS TRANSMISSION AND STORAGE, INC., SCHUTTE STATION | SEDALIA, Doddridge, WV | Pass | State |
| 2019-09-17 | LOVELL PLANT (AMERICAN COLLOID CO) | LOVELL, Big Horn, WY | Pass | State |
| 2019-09-17 | WYGEN II POWER STATION (OWNER: CHEYENNE LIGHT FUEL AND POWER) | GILLETTE, Campbell, WY | Pass | State |
| 2019-09-17 | CASPER REFINERY (HF SINCLAIR CASPER REFINING LLC) — high-priority violation on file | EVANSVILLE, Natrona, WY | Pass | State |
| 2019-09-16 | SOUTHERN NATURAL GAS | SELMA, Dallas, AL | Pass | State |
| 2019-09-16 | SOUTHERN NATURAL GAS | SELMA, Dallas, AL | Pass | State |
| 2019-09-16 | CEMEX LLC - BLACK MT. QUARRY | APPLE VALLEY, San Bernardino, CA | Pass | Local |
| 2019-09-16 | TESORO REFINING & MARKETING CO, LLC — high-priority violation on file | CARSON, Los Angeles, CA | Pass | Local |
| 2019-09-16 | BREA PARENT 2007, LLC | BREA, Orange, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | SOUTHERN CALIF GAS CO | MARICOPA, Kern, CA | Pass | Local |
| 2019-09-16 | ORMOND BEACH GENERATING STATION | OXNARD, Ventura, CA | Pass | Local |
| 2019-09-16 | ROCKY MOUNTAIN MIDSTREAM - POWHATON C.S. | BRIGHTON 3.0 MI. E OF, Adams, CO | Pass | State |
| 2019-09-16 | JAMES HARDIE BUILDING PRODUCTS, INC. — high-priority violation on file | PLANT CITY, Hillsborough, FL | Pass | State |
| 2019-09-16 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2019-09-16 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2019-09-16 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2019-09-16 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2019-09-16 | VALLEY PAVING & ASPHALT INC 00105 | COTTONWOOD, Idaho, ID | Pass | State |
| 2019-09-16 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2019-09-16 | ROCHESTER METAL PRODUCTS CORPORATION — high-priority violation on file | ROCHESTER, Fulton, IN | Pass | State |
| 2019-09-16 | ALCOA POWER GENERATING INC WARRICK POWER PLANT — high-priority violation on file | NEWBURGH, Warrick, IN | Pass | State |
| 2019-09-16 | COMMERCIAL ASPHALT CO - PLANT 903 | ROSEMOUNT, Dakota, MN | Pass | State |
| 2019-09-16 | COMMERCIAL ASPHALT CO - PLANT 911 | SHAKOPEE, Scott, MN | Pass | State |
| 2019-09-16 | MERTENS CONSTRUCTION CO, INC. | AUXVASSE, Callaway, MO | Pass | State |
| 2019-09-16 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2019-09-16 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2019-09-16 | CHEMOURS COMPANY FC LLC THE, DELISLE PLANT | PASS CHRISTI, Harrison, MS | Pass | State |
| 2019-09-16 | RAINBOW ENERGY CENTER, LLC - COAL CREEK STATION - AQ | UNDERWOOD, McLean, ND | Pass | State |
| 2019-09-16 | PECAN PIPELINE (NORTH DAKOTA) INC.-AUSTIN COMPRESSOR STATION | STANLEY, Mountrail, ND | Pass | State |
| 2019-09-16 | PECAN PIPELINE (NORTH DAKOTA) INC.-CORMYLO COMPRESSOR STATION | STANLEY, Mountrail, ND | Pass | State |
| 2019-09-16 | PECAN PIPELINE (NORTH DAKOTA) INC.-SAUBER COMPRESSOR STATION | STANLEY, Mountrail, ND | Pass | State |
| 2019-09-16 | OMNI MOUNT WASHINGTON RESORT | CARROLL, Coos, NH | Pass | State |
| 2019-09-16 | ENTERPRISE - OXY SAND DUNES NORTH COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2019-09-16 | ENTERPRISE - OXY SAND DUNES NORTH COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2019-09-16 | ENTERPRISE - OXY SAND DUNES NORTH COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2019-09-16 | COTTON DRAW - MOON COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2019-09-16 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2019-09-16 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2019-09-16 | ET GATHERING PROCESSING LLC / HOPETON GAS PLANT | ALVA, Woods, OK | Pass | State |
| 2019-09-16 | ET GATHERING PROCESSING LLC / HOPETON GAS PLANT | ALVA, Woods, OK | Pass | State |
| 2019-09-16 | UGI TEXAS CREEK LLC/CLEGG COMP STA | TROUT RUN, Lycoming, PA | Pass | State |
| 2019-09-16 | UGI TEXAS CREEK LLC/JACKSON COMP STA | ROARING BRANCH, Tioga, PA | Pass | State |
| 2019-09-16 | NUCOR CORPORATION - DARLINGTON PLANT | DARLINGTON, Darlington, SC | Pass | State |
| 2019-09-16 | ARKOMA OPERATIONS, LLC - IGNACIO GAS TREATING PLANT | SOUTHERN UTE RESERVATION, La Plata, CO | Pass | State |
| 2019-09-16 | HUNTER FACILITY | NEW BRAUNFELS, Comal, TX | Pass | State |
| 2019-09-16 | HUNTER FACILITY | NEW BRAUNFELS, Comal, TX | Pass | State |
| 2019-09-16 | HUNTER FACILITY | NEW BRAUNFELS, Comal, TX | Pass | State |
| 2019-09-16 | HUNTER FACILITY | NEW BRAUNFELS, Comal, TX | Pass | State |
| 2019-09-16 | CEMEX CEMENT OF TEXAS | NEW BRAUNFELS, Comal, TX | Pass | State |
| 2019-09-16 | CEMEX CEMENT OF TEXAS | NEW BRAUNFELS, Comal, TX | Pass | State |
| 2019-09-16 | AREA 71 CGP FACILITY | KENEDY, Karnes, TX | Pass | State |
| 2019-09-16 | MAGRIS TALC USA INC | LUDLOW, Windsor, VT | Pass | State |
| 2019-09-16 | NORTHWEST PIPELINE CORP SUMAS | SUMAS, Whatcom, WA | Pass | Local |
| 2019-09-16 | BP WEST COAST PRODUCTS LLC — high-priority violation on file | BLAINE, Whatcom, WA | Pass | Local |
| 2019-09-15 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2019-09-15 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2019-09-15 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
| 2019-09-15 | DUKE ENERGY FLORIDA, LLC | INTERCESSION CITY, Osceola, FL | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.