Silica Co. of California
Past ProducerSilica, Sand and Gravel, ConstructionUSGS MRDS
Location
| State | California |
| County | Contra Costa |
| Coordinates | 37.89269, -121.70825 |
Commodities
| Primary | Silica, Sand and Gravel, Construction |
Mine Details
| Status | Past Producer |
| Deposit Type | Sedimentary |
| Data Source | USGS MRDS |
| Source ID | 10076505 |
What This Means
This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.
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