# DISORDERS (PHYSICAL AGENTS)
> MSHA accident `220262020016` · 07/15/2026 · Knife River - South Dakota
## Details
- **Degree of injury:** OCCUPATNAL ILLNESS NOT DEG 1-6
- **Classification:** DISORDERS (PHYSICAL AGENTS)
- **Accident type:** Contact with heat
- **Occupation:** Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman
- **Activity:** Handling supplies or material
- **Injury source:** HEAT (ATMOS + ENVIRON)
- **Nature of injury:** HEATSTROK,SUNSTR,HT EXHAU
- **Body part:** BODY SYSTEMS
- **Days lost:** 2
- **Mine experience:** 0.23 years
## Operator
- **Controller:** Knife River Corporation
- **Operator:** Knife River - South Dakota
- **Mine:** [3901478](https://api.morvs.ai/mine/3901478)
## Narrative

Employee setting concrete forms reported feeling ill after lunch. Supervisor suspected heat-related symptoms, placed employee in vehicle with cool air, provided water and electrolytes, and observed EE for the remainder of the shift. Symptoms returned that evening; employee went to the ER, was diagnosed with dehydration, and received treatment and observation.

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