# FREDERICK GRINDING PLANT
> **Metal/Non-metal** mine · MSHA ID `1800750` · Facility · **Active**
## Operator
- **Controller (parent):** David  Humphreys
- **Operator:** TAMKO BUILDING PRODUCTS LLC
- **Employees:** 6
- **Commodity:** Stone
## Location
- **State:** MD · Frederick Co.
- **Coordinates:** 39.345833, -77.436944
## Safety record
- **Total accidents/injuries:** 2
- **Fatalities:** 0
- **Total days lost:** 173
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*