EPA Air · stack tests by county and year
Air-emissions stack tests in Martin County, Indiana, 2025
- 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 Martin County, Indiana 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 Martin County facility page.
Air-emissions stack tests in Martin County, other years
What stands out
- Stack tests in Martin County, Indiana, rose from 3 in 2024, the previous year on file, to 5 in 2025.
- The county’s file for stack tests holds 9 years of events, from 2018 through 2026.
- Its 5 stack tests rank 54th of the 64 county cells in Indiana for 2025.
- Its 5 stack tests are 0.3% of the 1,621 the state’s file holds for 2025.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Martin County, Indiana, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | Pass | State |
| 2025-03-06 | CRANE DIVISION NAVAL SURFACE WARFARE CENTER NSWC CRANE | 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 Martin county, IN, for 2025. It lists 5 stack tests recorded in 2025.