EPA Air · stack tests by state and year
Air-emissions stack tests in Nebraska, 2025
- 145Stack 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 Nebraska during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Nebraska, 2025
- Lancaster County 20
- Cass County 12
- Washington County 12
- Douglas County 11
- Platte County 10
- Otoe County 8
- Hall County 7
- Fillmore County 6
- Sarpy County 5
- York County 5
- Dodge County 4
- Madison County 4
- Gage County 4
- Merrick County 3
- Lincoln County 3
- Buffalo County 3
- Dakota County 3
- Adams County 3
Nebraska, other years
Air-emissions stack tests recorded in Nebraska, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-05-15 | GREEN PLAINS YORK LLC — high-priority violation on file | YORK, York, NE | Pass | State |
| 2025-05-09 | OPPD SARPY COUNTY STATION | BELLEVUE, Sarpy, NE | Pass | State |
| 2025-05-09 | AGATE LLC | LINCOLN, Lancaster, NE | Pass | Local |
| 2025-05-09 | AGATE LLC | LINCOLN, Lancaster, NE | Pass | Local |
| 2025-05-08 | BERTRAND COMPRESSOR STATION | LOOMIS, Phelps, NE | Pass | State |
| 2025-05-07 | GREEN PLAINS WOOD RIVER LLC — high-priority violation on file | WOOD RIVER, Hall, NE | N/A | State |
| 2025-05-07 | GREEN PLAINS WOOD RIVER LLC — high-priority violation on file | WOOD RIVER, Hall, NE | Pass | State |
| 2025-05-06 | MAGELLAN PIPELINE COMPANY LP | OMAHA, Douglas, NE | Pass | State |
| 2025-05-02 | LON D WRIGHT POWER PLANT | FREMONT, Dodge, NE | Pass | State |
| 2025-05-02 | OPPD NEBRASKA CITY STATION | NEBRASKA CITY, Otoe, NE | Pass | State |
| 2025-04-30 | POET BIOREFINING-FAIRMONT LLC — high-priority violation on file | FAIRMONT, Fillmore, NE | N/A | State |
| 2025-04-30 | POET BIOREFINING-FAIRMONT LLC — high-priority violation on file | FAIRMONT, Fillmore, NE | Pass | State |
| 2025-04-25 | OPPD NORTH OMAHA POWER STATION | OMAHA, Douglas, NE | N/A | Local |
| 2025-04-18 | EQUILON ENTERPRISES LLC | YORK, York, NE | Pass | State |
| 2025-04-16 | TIGT BIG SPRINGS STATION | BIG SPRINGS, Deuel, NE | Pass | State |
| 2025-04-16 | WESTWOOD SOLUTIONS LLC | OMAHA, Douglas, NE | N/A | State |
| 2025-04-15 | CHRISTENSEN BROS PARTNERSHIP | RANDOLPH, Cedar, NE | Pass | State |
| 2025-04-11 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pending | Local |
| 2025-04-04 | FALLS CITY POWER PLANT — high-priority violation on file | FALLS CITY, Richardson, NE | Pass | State |
| 2025-04-03 | NORFOLK CRUSH LLC | NORFOLK, Madison, NE | Pass | State |
| 2025-04-02 | NUCOR STEEL | NORFOLK, Madison, NE | N/A | State |
| 2025-03-13 | ADM CORN PROCESSING — high-priority violation on file | COLUMBUS, Platte, NE | N/A | State |
| 2025-03-12 | KAAPA ETHANOL RAVENNA LLC — high-priority violation on file | RAVENNA, Buffalo, NE | N/A | State |
| 2025-03-11 | KAAPA ETHANOL RAVENNA LLC — high-priority violation on file | RAVENNA, Buffalo, NE | Pass | State |
| 2025-03-11 | POET BIOREFINING-FAIRMONT LLC — high-priority violation on file | FAIRMONT, Fillmore, NE | Pass | State |
| 2025-03-10 | NORTHERN NATURAL GAS COMPANY | BEATRICE, Gage, NE | Pass | State |
| 2025-03-05 | ADM CORN PROCESSING — high-priority violation on file | COLUMBUS, Platte, NE | Pass | State |
| 2025-02-28 | GREEN PLAINS WOOD RIVER LLC — high-priority violation on file | WOOD RIVER, Hall, NE | Pass | State |
| 2025-02-27 | OPPD NEBRASKA CITY STATION | NEBRASKA CITY, Otoe, NE | Pass | State |
| 2025-02-21 | FIREBALL GROUP LLC DATA CENTER — high-priority violation on file | PAPILLION, Sarpy, NE | Pass | State |
| 2025-02-14 | 3600 NORTH PLATTE COMPRESSOR | NORTH PLATTE, Lincoln, NE | Pass | State |
| 2025-02-13 | EQUILON ENTERPRISES LLC | YORK, York, NE | N/A | State |
| 2025-02-10 | CARGILL INC — high-priority violation on file | BLAIR, Washington, NE | Pass | State |
| 2025-02-07 | CARGILL INC — high-priority violation on file | BLAIR, Washington, NE | Pass | State |
| 2025-01-30 | MUD RAINWOOD PUMP STATION | OMAHA, Douglas, NE | Pass | State |
| 2025-01-30 | MUD SKYLINE PUMP STATION | ELKHORN, Douglas, NE | Pass | State |
| 2025-01-29 | TRENTON AGRI PRODUCTS LLC | TRENTON, Hitchcock, NE | Pass | State |
| 2025-01-28 | TRENTON AGRI PRODUCTS LLC | TRENTON, Hitchcock, NE | Pass | State |
| 2025-01-23 | NORFOLK CRUSH LLC | NORFOLK, Madison, NE | N/A | State |
| 2025-01-22 | GREEN PLAINS WOOD RIVER LLC — high-priority violation on file | WOOD RIVER, Hall, NE | N/A | State |
| 2025-01-16 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2025-01-15 | POET BIOREFINING-FAIRMONT LLC — high-priority violation on file | FAIRMONT, Fillmore, NE | Pass | State |
| 2025-01-14 | NPPD SHELDON STATION | HALLAM, Lancaster, NE | Pass | Local |
| 2025-01-08 | WESTWOOD SOLUTIONS LLC | OMAHA, Douglas, NE | Pass | State |
| 2025-01-02 | WESTWOOD SOLUTIONS LLC | OMAHA, Douglas, NE | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.