# IMPOUNDMENT
> MSHA accident `220040540011` · 02/13/2004 · Mississippi Lignite Mining Company
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** IMPOUNDMENT
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** —
- **Mine experience:** — years
## Operator
- **Controller:** NACCO Industries Inc
- **Operator:** Mississippi Lignite Mining Company
- **Mine:** [2200690](https://api.morvs.ai/mine/2200690)
## Narrative

SEDIMENTATION POND SP-4 LEVEE DEVELOPED A SIGNIFICANT LEAK AROUND THE 36 INCH DECANT PIPE. AS A CONSEQUENCE, THE LEADK ERODED THE LEVEE CAUSING FAILURE IN THIS AREA OF THE DAM. THE ERODED AREA WAS APPROX. NINETEEN FEET WIDE BY SIXTY FEET LONG. THE WATER WAS RELEASED INTO MIDDLE BYWY CREEK AND THE RESULTING FLOW WAS CONTAINED? NO DOWNSTREAM FLOODING OR DAMAGE OCCURRED.

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