Contra Costa County, California — Mines
21 mines | 894 violations
| Mine | Type | Status | Violations | Penalties |
|---|---|---|---|---|
| G3 Enterprises Byron Plant | Surface | Active | 259 | $96K |
| Clayton Aggregates | Surface | Active | 200 | $44K |
| Clayton Plant | Surface | Active | 173 | $77K |
| Sand Merchant | Surface | Active | 61 | $6K |
| TXI-Port Costa Plant | Surface | Abandoned | 47 | $5K |
| Kellog Creek Aggregates Inc | Surface | Active | 36 | $5K |
| DS-10 | Surface | Abandoned | 36 | $3K |
| Marina Vista Plant | Surface | Abandoned | 27 | $2K |
| Point Richmond Quarry | Surface | Abandoned | 20 | $2K |
| SB-20 | Surface | Abandoned | 19 | $2K |
| Sand Hill Ranch | Surface | Abandoned | 14 | $1K |
| MARTINEZ WATERFRONT PLANT | Surface | Abandoned | 2 | $110 |
| SB-20 | Surface | Abandoned | 0 | $0 |
| DS-10 | Surface | Abandoned | 0 | $0 |