EPA Air · stack tests by county and year
Air-emissions stack tests in Polk County, Arkansas, 2023
- 3Stack 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 Polk County, Arkansas 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 Polk County facility page.
Polk County, Arkansas, 2023
Air-emissions stack tests in Polk County, other years
Air-emissions stack tests recorded in Polk County, Arkansas, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-08-04 | MARTIN MARIETTA MATERIALS, INC. - HATTON QUARRY | Pass | State |
| 2023-08-04 | MARTIN MARIETTA MATERIALS, INC. - HATTON QUARRY | Pass | State |
| 2023-08-04 | MARTIN MARIETTA MATERIALS, INC. - HATTON QUARRY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.