EPA Air · stack tests by state and year
Air-emissions stack tests in Minnesota, 2021
- 209Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Minnesota during 2021; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Minnesota, 2021
- Dakota County 27
- St. Louis County 20
- Hennepin County 14
- Polk County 12
- Carlton County 12
- Washington County 10
- Martin County 7
- Blue Earth County 6
- Ramsey County 6
- Scott County 5
- Clay County 5
- Goodhue County 5
- Rice County 5
- Olmsted County 4
- Le Sueur County 4
- Steele County 4
- Beltrami County 3
- McLeod County 3
- Sherburne County 3
- Koochiching County 3
- Lake County 3
- Carver County 3
- Lyon County 3
- Nobles County 3
- Benton County 3
- Stearns County 3
Minnesota, other years
Air-emissions stack tests recorded in Minnesota, 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-08-10 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-08-10 | NORTHSHORE MINING CO - SILVER BAY | SILVER BAY, Lake, MN | Pass | State |
| 2021-08-10 | NORTHERN BORDER PIPELINE - COMPRESSOR 12 | GARVIN, Lyon, MN | Pass | State |
| 2021-08-03 | 3M CHEMICAL OPERATIONS COTTAGE GROVE FACILITY - ADDITIVES | COTTAGE GROVE, Washington, MN | Pass | State |
| 2021-08-02 | MINNESOTA POWER - BOSWELL ENERGY CENTER | COHASSET, Itasca, MN | Pass | State |
| 2021-07-28 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2021-07-28 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-07-28 | CLEVELAND-CLIFFS MINORCA MINE INC | VIRGINIA, St. Louis, MN | Pass | State |
| 2021-07-27 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2021-07-27 | MET COUNCIL - SENECA WWTP | EAGAN, Dakota, MN | Pass | State |
| 2021-07-27 | DENCO II LLC | MORRIS, Stevens, MN | Pass | State |
| 2021-07-21 | MCNAMARA CONTRACTING INC | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-07-13 | WEST FRASER US EWP - BEMIDJI | SOLWAY, Beltrami, MN | Pass | State |
| 2021-07-13 | XCEL ENERGY - WILMARTH GENERATING PLANT | MANKATO, Blue Earth, MN | Pass | State |
| 2021-07-13 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-07-13 | VALERO RENEWABLE FUELS CO LLC - WELCOME PLANT | WELCOME, Martin, MN | Pass | State |
| 2021-07-13 | CENTRAL SPECIALTIES INC - PLANT 3 | ALEXANDRIA, Douglas, MN | Pass | State |
| 2021-07-12 | CLEVELAND-CLIFFS MINORCA MINE INC | VIRGINIA, St. Louis, MN | Pass | State |
| 2021-07-08 | HOWARD'S DRIVEWAY INC | MENAHGA, Becker, MN | Pass | State |
| 2021-07-08 | MARATHON SAINT PAUL PARK REFINERY | SAINT PAUL PARK, Washington, MN | N/A | State |
| 2021-07-07 | HASTINGS SAND AND GRAVEL | ROGERS, Hennepin, MN | Pass | State |
| 2021-07-06 | HORMEL FOODS CORPORATION - AUSTIN PLANT | AUSTIN, Mower, MN | Pass | State |
| 2021-07-01 | WISCONSIN CENTRAL LTD | DULUTH, St. Louis, MN | Pass | State |
| 2021-06-30 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2021-06-29 | PINE BEND PAVING HOT-MIX ASPHALT PLANT | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-06-22 | OTTER LAKE TECHNOLOGIES | WHITE BEAR TOWNSHIP, Ramsey, MN | Pass | State |
| 2021-06-17 | NAHAN PRINTING INC. | SAINT CLOUD, Stearns, MN | Pass | State |
| 2021-06-17 | DUININCK BROS INC - PORT PLANT 7 | PRINSBURG, Kandiyohi, MN | Pass | State |
| 2021-06-14 | XCEL ENERGY - PRAIRIE ISLAND NUCLEAR PLANT | WELCH, Goodhue, MN | Pass | State |
| 2021-06-08 | MANKATO ENERGY CENTER | MANKATO, Blue Earth, MN | Pass | State |
| 2021-06-08 | ALLIANCE PIPELINE - ALBERT LEA 25-A | ALBERT LEA, Freeborn, MN | Pass | State |
| 2021-06-08 | TILLER CORP - MAPLE GROVE MINING & PROCESSING FACILITY | MAPLE GROVE, Hennepin, MN | Pass | State |
| 2021-06-08 | MOM BRANDS | NORTHFIELD, Rice, MN | Pass | State |
| 2021-06-08 | UNITED TACONITE LLC - FAIRLANE PLANT | FORBES, St. Louis, MN | Pass | State |
| 2021-06-08 | OWATONNA ENERGY STATION | OWATONNA, Steele, MN | Pass | State |
| 2021-06-03 | POET BIOREFINING LAKE CRYSTAL LLC | LAKE CRYSTAL, Blue Earth, MN | Pass | State |
| 2021-06-02 | 3M HUTCHINSON | HUTCHINSON, McLeod, MN | Pass | State |
| 2021-05-29 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2021-05-26 | RJ ZAVORAL AND SONS INC HMA PORTABLE PLANT 1 | EAST GRAND FORKS, Polk, MN | Pass | State |
| 2021-05-25 | DISTRICT ENERGY ST PAUL/ST PAUL COGENERATION L | SAINT PAUL, Ramsey, MN | Pass | State |
| 2021-05-25 | MARVIN WINDOWS AND DOORS | WARROAD, Roseau, MN | Pass | State |
| 2021-05-25 | GUARDIAN ENERGY LLC | JANESVILLE, Waseca, MN | Pass | State |
| 2021-05-25 | RJ ZAVORAL AND SONS INC HMA PORTABLE PLANT 2 | EAST GRAND FORKS, Polk, MN | Fail | State |
| 2021-05-24 | HENNEPIN ENERGY RECOVERY CENTER | MINNEAPOLIS, Hennepin, MN | Pass | State |
| 2021-05-19 | MINNESOTA POWER - HIBBARD RENEWABLE ENERGY CENTER | DULUTH, St. Louis, MN | Pass | State |
| 2021-05-18 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-05-18 | ST. PAUL ASPHALT PLANT #905 | SAINT PAUL, Ramsey, MN | Pass | State |
| 2021-05-13 | SAPPI CLOQUET LLC | CLOQUET, Carlton, MN | Pass | State |
| 2021-05-11 | 3M HUTCHINSON | HUTCHINSON, McLeod, MN | Pass | State |
| 2021-05-11 | PERHAM RESOURCE RECOVERY FACILITY | PERHAM, Otter Tail, MN | Fail | State |
| 2021-05-11 | NORTHLAND CONSTRUCTORS OF DULUTH - NONMETALLIC | DULUTH, St. Louis, MN | Pass | State |
| 2021-05-08 | UNITED STATES STEEL CORP - KEETAC | KEEWATIN, St. Louis, MN | Pass | State |
| 2021-05-07 | M&J CONSTRUCTION CO - NONMETALLIC | NEWFOLDEN, Marshall, MN | Pass | State |
| 2021-05-06 | ROCHESTER SAND AND GRAVEL PLANT 77 | ROCHESTER, Olmsted, MN | Pass | State |
| 2021-05-06 | OLDCASTLE INFRASTRUCTURE INC | HANCOCK, Stevens, MN | Pass | State |
| 2021-05-04 | HERON LAKE BIOENERGY LLC | HERON LAKE, Jackson, MN | Pass | State |
| 2021-05-04 | LSP COTTAGE GROVE COGENERATION FACILITY | COTTAGE GROVE, Washington, MN | Pass | State |
| 2021-04-29 | GREDE LLC - SAINT CLOUD | SAINT CLOUD, Benton, MN | Pass | State |
| 2021-04-27 | HIGHWATER ETHANOL LLC | LAMBERTON, Redwood, MN | Pass | State |
| 2021-04-26 | MOM BRANDS | NORTHFIELD, Rice, MN | Pass | State |
| 2021-04-22 | HEARTLAND CORN PRODUCTS | WINTHROP, Sibley, MN | Pass | State |
| 2021-04-21 | CABINETWORKS GROUP | WACONIA, Carver, MN | Pass | State |
| 2021-04-21 | MAGELLAN PIPELINE CO LP - FARIBAULT | FARIBAULT, Rice, MN | N/A | State |
| 2021-04-21 | ANDERSEN CORPORATION | BAYPORT, Washington, MN | Pass | State |
| 2021-04-21 | ANDERSEN CORPORATION | BAYPORT, Washington, MN | Pass | State |
| 2021-04-20 | GREAT RIVER ENERGY - SAINT BONIFACIUS | SAINT BONIFACIUS, Carver, MN | Pass | State |
| 2021-04-20 | XCEL ENERGY - RED WING GENERATING PLANT | RED WING, Goodhue, MN | Pass | State |
| 2021-04-20 | BOISE WHITE PAPER LLC | INTERNATIONAL FALLS, Koochiching, MN | Pass | State |
| 2021-04-20 | HIBBING TACONITE CO | HIBBING, St. Louis, MN | Pass | State |
| 2021-04-20 | ANDERSEN CORPORATION | BAYPORT, Washington, MN | Pass | State |
| 2021-04-14 | ME GLOBAL INC | DULUTH, St. Louis, MN | Pass | State |
| 2021-04-13 | OLMSTED COUNTY WASTE-TO-ENERGY FACILITY | ROCHESTER, Olmsted, MN | Pass | State |
| 2021-04-13 | US STEEL CORP - MINNTAC | MOUNTAIN IRON, St. Louis, MN | Pass | State |
| 2021-04-13 | KODA ENERGY, LLC — high-priority violation on file | SHAKOPEE, Scott, MN | Pass | State |
| 2021-04-05 | POET BIOREFINING GLENVILLE LLC | ALBERT LEA, Freeborn, MN | Pass | State |
| 2021-04-05 | BROADWAY GENERATION PLANT | SAINT PETER, Nicollet, MN | Pass | State |
| 2021-03-25 | NORTHSHORE MINING CO - SILVER BAY | SILVER BAY, Lake, MN | Pass | State |
| 2021-03-24 | BUSHMILLS ETHANOL INC | ATWATER, Kandiyohi, MN | Pass | State |
| 2021-03-24 | UNITED STATES STEEL CORP - KEETAC | KEEWATIN, St. Louis, MN | N/A | State |
| 2021-03-23 | POPE/DOUGLAS SOLID WASTE MANAGEMENT | ALEXANDRIA, Douglas, MN | Pass | State |
| 2021-03-16 | AMERICAN CRYSTAL SUGAR - EAST GRAND FORKS | EAST GRAND FORKS, Polk, MN | Pass | State |
| 2021-03-16 | AMERICAN CRYSTAL SUGAR - EAST GRAND FORKS | EAST GRAND FORKS, Polk, MN | Pass | State |
| 2021-03-09 | ARDENT MILLS LLC HASTINGS, MN | HASTINGS, Dakota, MN | Pass | State |
| 2021-03-08 | OWATONNA ENERGY STATION | OWATONNA, Steele, MN | Pass | State |
| 2021-03-03 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-03-03 | LOUISIANA-PACIFIC CORP - TWO HARBORS | TWO HARBORS, Lake, MN | Pass | State |
| 2021-03-03 | XCEL ENERGY - ALLEN S KING GENERATING PLANT | BAYPORT, Washington, MN | Pass | State |
| 2021-03-02 | XCEL ENERGY - BLUE LAKE | SHAKOPEE, Scott, MN | Pass | State |
| 2021-03-02 | KODA ENERGY, LLC — high-priority violation on file | SHAKOPEE, Scott, MN | Pass | State |
| 2021-03-01 | CAMBRIA CO | LE SUEUR, Le Sueur, MN | Pass | State |
| 2021-02-25 | UNIVERSITY OF MN - TWIN CITIES | MINNEAPOLIS, Hennepin, MN | Pass | State |
| 2021-02-23 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-02-23 | EMR NORTHERN METAL RECYCLING - BECKER | BECKER, Sherburne, MN | Fail | State |
| 2021-02-08 | CHS OILSEED PROCESSING | FAIRMONT, Martin, MN | Pass | State |
| 2021-02-08 | OLMSTED COUNTY WASTE-TO-ENERGY FACILITY | ROCHESTER, Olmsted, MN | Pass | State |
| 2021-02-03 | DISTRICT ENERGY ST PAUL/ST PAUL COGENERATION L | SAINT PAUL, Ramsey, MN | N/A | State |
| 2021-02-02 | FLINT HILLS RESOURCES PINE BEND REFINERY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-02-01 | DAKOTA AGGREGATES - UMORE PARK FACILITY | ROSEMOUNT, Dakota, MN | Pass | State |
| 2021-02-01 | VIRGINIA DEPARTMENT OF PUBLIC UTILITIES — high-priority violation on file | VIRGINIA, St. Louis, MN | Pass | State |
| 2021-01-28 | XCEL ENERGY - SHERBURNE COUNTY GENERATING PLANT | BECKER, Sherburne, MN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.