EPA Air · stack tests by county and year
Air-emissions stack tests in Riverside County, California, 2025
- 29Stack 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 Riverside County, California 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 Riverside County facility page.
Riverside County, California, 2025
- Inspections 40
Air-emissions stack tests in Riverside County, other years
Air-emissions stack tests recorded in Riverside County, California, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-06 | BLYTHE ENERGY LLC (FPL FLORIDA POWER) | Pass | Local |
| 2025-11-04 | BLYTHE ENERGY LLC (FPL FLORIDA POWER) | Pass | Local |
| 2025-10-17 | QG PRINTING CORP — high-priority violation on file | Pass | Local |
| 2025-10-16 | IMPERIAL IRRIGATION DISTRICT/COACHELLA | Pass | Local |
| 2025-10-15 | IMPERIAL IRRIGATION DISTRICT/COACHELLA | Pass | Local |
| 2025-08-14 | WILDFLOWER ENERGY LP, INDIGO ENERGY FAC | Pass | Local |
| 2025-08-13 | WILDFLOWER ENERGY LP, INDIGO ENERGY FAC | Pass | Local |
| 2025-08-12 | WILDFLOWER ENERGY LP, INDIGO ENERGY FAC | Pass | Local |
| 2025-05-09 | SAN DIEGO GAS & ELECTRIC | Pass | Local |
| 2025-04-25 | SO CAL GAS - BLYTHE | Pass | Local |
| 2025-04-10 | CITY OF RIVERSIDE PUBLIC UTILITIES DEPT | Pass | Local |
| 2025-04-09 | CITY OF RIVERSIDE PUBLIC UTILITIES DEPT | Pass | Local |
| 2025-04-08 | CITY OF RIVERSIDE PUBLIC UTILITIES DEPT | Pass | Local |
| 2025-04-07 | CITY OF RIVERSIDE PUBLIC UTILITIES DEPT | Pass | Local |
| 2025-03-31 | 3M COMPANY | Pass | Local |
| 2025-03-31 | 3M COMPANY | Pass | Local |
| 2025-03-19 | SENTINEL ENERGY CENTER LLC | Pass | Local |
| 2025-03-18 | SAN DIEGO GAS & ELECTRIC | Fail | Local |
| 2025-03-13 | 3M COMPANY | Pass | Local |
| 2025-03-13 | 3M COMPANY | Pass | Local |
| 2025-03-13 | 3M COMPANY | Pass | Local |
| 2025-03-13 | 3M COMPANY | Pass | Local |
| 2025-03-11 | 3M COMPANY | Pass | Local |
| 2025-03-11 | 3M COMPANY | Pass | Local |
| 2025-03-10 | 3M COMPANY | Pass | Local |
| 2025-03-10 | 3M COMPANY | Pass | Local |
| 2025-03-06 | SO CAL GAS - BLYTHE | Pass | Local |
| 2025-03-06 | SO CAL GAS - BLYTHE | Pass | Local |
| 2025-02-26 | SO CAL GAS - BLYTHE | Pass | Local |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.