EPA Air · stack tests by county and year
Air-emissions stack tests in Rosebud County, Montana, 2017
- 42Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Rosebud County, Montana during 2017. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Rosebud County facility page.
Air-emissions stack tests in Rosebud County, other years
Air-emissions stack tests recorded in Rosebud County, Montana, 2017
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-11-13 | WILLISTON BASIN - HATHAWAY STATION | Pass | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | Fail | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-07-21 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-07-21 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-07-21 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-05-12 | WILLISTON BASIN - HATHAWAY STATION | Pass | State |
| 2017-05-12 | WILLISTON BASIN - HATHAWAY STATION | Pass | State |
| 2017-04-18 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-04-18 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-04-17 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | Pass | State |
| 2017-01-17 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-01-17 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
| 2017-01-17 | COLSTRIP ENERGY LTD PARTNERSHIP | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.