# Maitri Sand and Gravel
> **Metal/Non-metal** mine · MSHA ID `0404157` · Surface · **Active**
## Operator
- **Controller (parent):** Martin Marietta Materials Inc
- **Operator:** Martin Marietta Southern California Aggregates,LLC
- **Employees:** 15
- **Commodity:** SandAndGravel
## Location
- **State:** CA · Riverside Co.
- **Coordinates:** 33.7575, -117.483056
## Safety record
- **Total accidents/injuries:** 24
- **Fatalities:** 0
- **Total days lost:** 182
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*