EPA Air · stack tests by county and year
Air-emissions stack tests in Guthrie County, Iowa, 2023
- 6Stack 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 Guthrie County, Iowa during 2023. 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 Guthrie County facility page.
Air-emissions stack tests in Guthrie County, other years
Air-emissions stack tests recorded in Guthrie County, Iowa, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-08-30 | POET BIOREFINING - MENLO, LLC | Pass | State |
| 2023-07-20 | POET BIOREFINING - MENLO, LLC | Pass | State |
| 2023-07-12 | POET BIOREFINING - COON RAPIDS, LLC | Pass | State |
| 2023-07-12 | POET BIOREFINING - COON RAPIDS, LLC | Pass | State |
| 2023-07-11 | POET BIOREFINING - COON RAPIDS, LLC | Fail | State |
| 2023-01-18 | POET BIOREFINING - MENLO, LLC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.