Mining Incidents

O-N Minerals (Chemstone Company)Mining Incidents in 2025

All MSHA-reportable accidents at O-N Minerals (Chemstone Company) operations in 2025. Fatalities appear first.

Fatalities in 2025
0
Total incidents
1
Year
2025

Top incident classifications

  1. 01SLIP OR FALL OF PERSON1 incident

All incidents in 2025

Fall to the walkway or working surface

EE states that while pulling water hose to back to hose reel on water truck that the EE's foot hooked a frozen clump of material, causing a fall to the ground on EE's left side. EE was seen at urgent care and was issued restrictions due to limited mobility and pain in left shoulder and left thigh.

Other years on record

Source: US Mine Safety and Health Administration (MSHA) accident records, kept current weekly. Operator identity is MSHA's operator_id on the accident record; records are scoped to O-N Minerals (Chemstone Company)'s numeric MSHA operator ID.