EPA Air · stack tests by county and year
Air-emissions stack tests in O'Brien County, Iowa, 2021
- 5Stack 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 O'Brien County, Iowa during 2021. 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 O'Brien County facility page.
Air-emissions stack tests in O'Brien County, other years
Air-emissions stack tests recorded in O'Brien County, Iowa, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-10-14 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | Pass | State |
| 2021-10-13 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | Pass | State |
| 2021-10-13 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | Pass | State |
| 2021-06-17 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | Pass | State |
| 2021-06-16 | VALERO RENEWABLE FUELS CO LLC-HARTLEY — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in O'Brien county, IA, in 2021. Stack tests recorded in 2021: 5.