EPA Air · stack tests by county and year
Air-emissions stack tests in Merced County, California, 2026
- 32Stack 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 Merced 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 Merced County facility page.
Merced County, California, 2026
- Inspections 61
Air-emissions stack tests in Merced County, other years
Air-emissions stack tests recorded in Merced County, California, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-23 | HILMAR CHEESE COMPANY — high-priority violation on file | Pass | Local |
| 2026-07-23 | HILMAR CHEESE COMPANY — high-priority violation on file | Pass | Local |
| 2026-07-23 | HILMAR CHEESE COMPANY — high-priority violation on file | Pass | Local |
| 2026-06-23 | HILMAR CHEESE COMPANY — high-priority violation on file | Pass | Local |
| 2026-06-23 | HILMAR CHEESE COMPANY — high-priority violation on file | Pass | Local |
| 2026-06-23 | HILMAR CHEESE COMPANY — high-priority violation on file | Pass | Local |
| 2026-06-23 | HILMAR CHEESE COMPANY — high-priority violation on file | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-06-16 | LIBERTY PACKING CO. | Pass | Local |
| 2026-04-28 | E&J GALLO WINERY — high-priority violation on file | Pass | Local |
| 2026-04-28 | E&J GALLO WINERY — high-priority violation on file | Pass | Local |
| 2026-04-28 | E&J GALLO WINERY — high-priority violation on file | Pass | Local |
| 2026-02-03 | FOSTER FOOD PRODUCTS — high-priority violation on file | Pass | Local |
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 Merced county, CA, in 2026. It lists 32 stack tests recorded in 2026.