# HANDLING OF MATERIALS
> MSHA accident `220212590011` · 08/09/2021 · Barton Sand & Gravel Co
## Details
- **Degree of injury:** DAYS RESTRICTED ACTIVITY ONLY
- **Classification:** HANDLING OF MATERIALS
- **Accident type:** Over-exertion in lifting objects
- **Occupation:** Quality control technician, Laboratory technician, Laboratory assistant
- **Activity:** Handling coal, Rock, Ore
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** KNEE/PATELLA
- **Days lost:** 0
- **Mine experience:** 2.31 years
## Operator
- **Controller:** Martin Marietta Materials Inc
- **Operator:** Barton Sand & Gravel Co
- **Mine:** [2103147](https://api.ai-analytics.org/mine/2103147)
## Narrative

Employee strained knee gathering a stockpile sample

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*