EPA Air · stack tests by county and year
Air-emissions stack tests in Madera County, California, 2026
- 20Stack 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 Madera County, California during 2026. 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 Madera County facility page.
Madera County, California, 2026
- Inspections 87
Air-emissions stack tests in Madera County, other years
Air-emissions stack tests recorded in Madera County, California, 2026
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 Madera county, CA, for 2026. It lists 20 stack tests recorded in 2026.