# INUNDATION
> MSHA accident `220210610019` · 02/28/2021 · Knight Hawk Coal, LLC
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** INUNDATION
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** —
- **Mine experience:** — years
## Operator
- **Controller:** CBR Investments LLC; Arch Coal Inc
- **Operator:** Knight Hawk Coal, LLC
- **Mine:** [1103147](https://api.ai-analytics.org/mine/1103147)
## Narrative

Pumps in the main portal pit did not function properly and allowed rain water to exceed from the sump area.  This caused excess flooding in the pit and into the portal entries of the mine.

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