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 |
|---|---|---|---|---|
| 2019-07-30 | SMMPA METHANE ENERGY FACILITY | MORA, Kanabec, MN | Pass | State |
| 2019-07-30 | LAMAR CITY ELECTRICAL GENERATION | LAMAR, Barton, MO | Pending | State |
| 2019-07-30 | NISSAN NORTH AMERICA INC, CANTON MANUFACTURING FACILITY | CANTON, Madison, MS | Pass | State |
| 2019-07-30 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2019-07-30 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2019-07-30 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2019-07-30 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2019-07-30 | APAC-ATLANTIC, INC. - PLANT #8 | BURLINGTON, Alamance, NC | Pass | State |
| 2019-07-30 | KNOA PHARMACEUTICALS LLC | WILSON, Wilson, NC | Pass | State |
| 2019-07-30 | ASH GROVE CEMENT CO — high-priority violation on file | LOUISVILLE, Cass, NE | N/A | State |
| 2019-07-30 | NORTHERN NATURAL GAS COMPANY | HOMER, Dakota, NE | Pass | State |
| 2019-07-30 | ROSS RANCH COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2019-07-30 | ROSS RANCH COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2019-07-30 | ROSS RANCH COMPRESSOR STATION | LOVING, Eddy, NM | Pass | State |
| 2019-07-30 | HOBBS GENERATING STATION | HOBBS, Lea, NM | Pass | State |
| 2019-07-30 | HOBBS GENERATING STATION | HOBBS, Lea, NM | Pass | State |
| 2019-07-30 | RUIZ COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2019-07-30 | RUIZ COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2019-07-30 | RUIZ COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2019-07-30 | RUIZ COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2019-07-30 | RUIZ COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2019-07-30 | RUIZ COMPRESSOR STATION | JAL, Lea, NM | Pass | State |
| 2019-07-30 | VALERO RENEWABLE FUELS COMPANY, LLC | BLOOMINGBURG, Fayette, OH | Pass | State |
| 2019-07-30 | VALERO RENEWABLE FUELS COMPANY, LLC | BLOOMINGBURG, Fayette, OH | Pass | State |
| 2019-07-30 | MATALCO USA LLC | LORDSTOWN, Trumbull, OH | Pass | State |
| 2019-07-30 | GLENN HUNTER AND ASSOCIATES | DELTA, Fulton, OH | Pass | State |
| 2019-07-30 | PEPPERIDGE FARM INC. | WILLARD, Huron, OH | Fail | State |
| 2019-07-30 | KINDER MORGANTENNESSEE GAS PIPELINE STATION 209 | CUMBERLAND, Guernsey, OH | Pass | State |
| 2019-07-30 | KINDER MORGANTENNESSEE GAS PIPELINE STATION 209 | CUMBERLAND, Guernsey, OH | Pass | State |
| 2019-07-30 | KINDER MORGANTENNESSEE GAS PIPELINE STATION 209 | CUMBERLAND, Guernsey, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | ENERGY TRANSFER- ROVER PPLN - SENECA COMPRESSOR STATION | SUMMERFIELD, Noble, OH | Pass | State |
| 2019-07-30 | HEIDELBERG MATERIALS US CEMENT LLC | PLAIN, TOWNSHIP OF, Stark, OH | Pass | State |
| 2019-07-30 | HEIDELBERG MATERIALS US CEMENT LLC | PLAIN, TOWNSHIP OF, Stark, OH | Pass | State |
| 2019-07-30 | MARATHON PETROLEUM COMPANY LP - CANTON REFINERY — high-priority violation on file | CANTON, Stark, OH | Pass | State |
| 2019-07-30 | FML SAND LLC / FML SEILING | CANTON, Dewey, OK | Pass | State |
| 2019-07-30 | TALL OAK MIDCON LLC / PENDLETON COMPRESSOR FACILITY | TALOGA, Dewey, OK | Pass | State |
| 2019-07-30 | PONTOTOC SANDS CO LLC / PONTOTOC SANDS 1 PS1 | FITTSTOWN, Pontotoc, OK | Pass | State |
| 2019-07-30 | MAGNESITA REFRACTORIES/YORK — high-priority violation on file | YORK, York, PA | Pass | State |
| 2019-07-30 | ARKEMA INC/WEST CHESTER — high-priority violation on file | WEST CHESTER, Chester, PA | Pass | State |
| 2019-07-30 | CLEVELAND CLIFFS STEEL CORP/ BUTLER WORKS | BUTLER, Butler, PA | Pass | State |
| 2019-07-30 | ALLNEX USA INC NORTH AUGUSTA FACILITY | NORTH AUGUSTA, Aiken, SC | Pass | State |
| 2019-07-30 | ALLNEX USA INC NORTH AUGUSTA FACILITY | NORTH AUGUSTA, Aiken, SC | Fail | State |
| 2019-07-30 | SIMCOE - MIERA CENTRAL DELIVERY POINT | LA PLATA COUNTY, La Plata, CO | Pass | U.S. EPA |
| 2019-07-30 | WORSHAM STEED GAS STORAGE FACILITY | PERRIN, Jack, TX | N/A | State |
| 2019-07-30 | WORSHAM STEED GAS STORAGE FACILITY | PERRIN, Jack, TX | N/A | State |
| 2019-07-30 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2019-07-30 | GAS TRANSMISSION NORTHWEST #7 | WASHINGTON, Undetermined, WA | Pass | State |
| 2019-07-30 | MONONGAHELA POWER COMPANY, HARRISON STATION | HAYWOOD, Harrison, WV | Pass | State |
| 2019-07-30 | MEADOWFILL LANDFILL, INC., BRIDGEPORT | BRIDGEPORT, Harrison, WV | Pass | State |
| 2019-07-30 | APPALACHIA MIDSTREAM SERVICES, L.L.C., SAND HILL STATION | DALLAS, Marshall, WV | Pass | State |
| 2019-07-30 | EQT XL MIDSTREAM OPERATING LLC, PAYNE STATION | GLEN EASTON, Marshall, WV | Pass | State |
| 2019-07-30 | AOC MATERIALS, LLC, NEAL PLANT | KENOVA, Wayne, WV | Pass | State |
| 2019-07-29 | HILCORP ENERGY COMPANY | FRISCO CITY, Monroe, AL | Pass | State |
| 2019-07-29 | INTERNATIONAL PAPER | PINE HILL, Wilcox, AL | Pass | State |
| 2019-07-29 | DESOTO GATHERING COMPANY, LLC - SOUTHWEST GREER LAKE CPF-5 | CLINTON, Van Buren, AR | Pass | State |
| 2019-07-29 | LHOIST NORTH AMERCA OF ARIZONA - NELSON | ARIZONA, Undetermined, AZ | Pass | State |
| 2019-07-29 | LINN OPERATING INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2019-07-29 | LINN OPERATING INC — high-priority violation on file | BAKERSFIELD, Kern, CA | Fail | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | LA PALOMA GENERATING PLANT | MCKITTRICK, Kern, CA | Pass | Local |
| 2019-07-29 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2019-07-29 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2019-07-29 | HILMAR CHEESE COMPANY — high-priority violation on file | HILMAR, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
| 2019-07-29 | LIBERTY PACKING CO. | VOLTA, Merced, CA | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.