EPA Air · stack tests by county and year
Air-emissions stack tests in Defiance County, Ohio, 2025
- 65Stack 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 Defiance County, Ohio during 2025. 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 Defiance County facility page.
Defiance County, Ohio, 2025
Air-emissions stack tests in Defiance County, other years
Air-emissions stack tests recorded in Defiance County, Ohio, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-10 | JOHNS MANVILLE | Pass | State |
| 2025-12-10 | JOHNS MANVILLE | Pass | State |
| 2025-12-09 | JOHNS MANVILLE | Pass | State |
| 2025-07-29 | RICHLAND STRYKER GENERATION LLC | Pass | State |
| 2025-05-30 | JOHNS MANVILLE | Pass | State |
| 2025-05-29 | JOHNS MANVILLE | Pass | State |
| 2025-05-29 | JOHNS MANVILLE | Pass | State |
| 2025-05-15 | ROVER PIPELINE - DEFIANCE COMPRESSOR STATION | Pass | State |
| 2025-05-15 | ROVER PIPELINE - DEFIANCE COMPRESSOR STATION | Pass | State |
| 2025-05-14 | ROVER PIPELINE - DEFIANCE COMPRESSOR STATION | Pass | State |
| 2025-05-14 | ROVER PIPELINE - DEFIANCE COMPRESSOR STATION | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-05-06 | JOHNS MANVILLE | Fail | State |
| 2025-05-06 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-25 | JOHNS MANVILLE | Pass | State |
| 2025-04-24 | JOHNS MANVILLE | Pass | State |
| 2025-04-24 | JOHNS MANVILLE | Pass | State |
| 2025-04-24 | JOHNS MANVILLE | Pass | State |
| 2025-04-24 | JOHNS MANVILLE | Pass | State |
| 2025-04-24 | JOHNS MANVILLE | Pass | State |
| 2025-04-24 | JOHNS MANVILLE | Pass | State |
| 2025-04-23 | JOHNS MANVILLE | Pass | State |
| 2025-04-23 | JOHNS MANVILLE | Pass | State |
| 2025-04-23 | JOHNS MANVILLE | Pass | State |
| 2025-04-23 | JOHNS MANVILLE | Pass | State |
| 2025-04-23 | JOHNS MANVILLE | Pass | State |
| 2025-04-23 | JOHNS MANVILLE | Pass | State |
| 2025-04-11 | JOHNS MANVILLE | Pass | State |
| 2025-04-11 | JOHNS MANVILLE | Pass | State |
| 2025-04-11 | JOHNS MANVILLE | Pass | State |
| 2025-04-11 | JOHNS MANVILLE | Pass | State |
| 2025-04-10 | JOHNS MANVILLE | Pass | State |
| 2025-04-10 | JOHNS MANVILLE | Pass | State |
| 2025-04-10 | JOHNS MANVILLE | Pass | State |
| 2025-04-10 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-09 | JOHNS MANVILLE | Pass | State |
| 2025-04-08 | JOHNS MANVILLE | Pass | State |
| 2025-04-08 | JOHNS MANVILLE | Pass | State |
| 2025-02-19 | JOHNS MANVILLE | Pass | State |
| 2025-02-19 | JOHNS MANVILLE | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.