# INUNDATION
> MSHA accident `220211650087` · 06/07/2021 · Solvay Chemicals,  Inc
## 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:** Solvay S A
- **Operator:** Solvay Chemicals,  Inc
- **Mine:** [4801295](https://api.ai-analytics.org/mine/4801295)
## Narrative

The mine experienced greater than 1% methane at the top of the exhaust shaft. This was due to methane liberation within the longwall section while mining through a cross cut and the top not caving as it should following a cut. This led to an evacuation of the mine and changes to the ventilation system to reduce the levels to below 1%.

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