Federal Regulators Penalize Businesses Over 6 Deaths at Colorado Dairy

OSHA cites dairy owner and service provider for safety violations after tragic incident.

Published on Feb. 25, 2026

Federal workplace safety regulators have issued citations and fines against three businesses for violations in the deaths of six people last year at a Colorado dairy. The U.S. Occupational Safety and Health Administration announced penalties for the dairy owner, Prospect Ranch, and a dairy service provider, Fiske Inc's subsidiary High Plains Robotics, for failing to protect workers against hazardous gases that led to the deaths of five men and a teenager.

Why it matters

The hazards of confined spaces on farms and dairies are a well-known and persistent cause of death in agriculture across the U.S. This incident highlights the ongoing need for stronger safety protocols and enforcement to prevent such tragedies.

The details

The deaths of the six Latino individuals, ranging in age from 17 to 50, occurred on August 20, 2025 at the Prospect Ranch dairy in Keenesburg, Colorado. Autopsies and toxicology tests determined they were exposed to and killed by hydrogen sulfide gas in a confined space at the dairy. Federal regulators opened investigations into the dairy and its service provider after the incident.

  • The incident occurred on August 20, 2025.
  • OSHA announced the citations and fines on February 25, 2026.

The players

Prospect Ranch

The dairy farm where the incident occurred and whose owner was cited by OSHA.

Fiske Inc.

A Colorado-based company that owns the subsidiary High Plains Robotics, which services dairy equipment and employed some of those who died.

High Plains Robotics

A subsidiary of Fiske Inc. that services dairy equipment and employed some of those who died in the incident.

Alejandro Espinoza Cruz

One of the victims, found dead along with his two sons.

Oscar Espinoza Leos

The 17-year-old son of Alejandro Espinoza Cruz who died in the incident.

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What’s next

OSHA will continue to investigate the incident and enforce safety regulations to prevent similar tragedies in the future.

The takeaway

This incident underscores the critical need for stronger safety protocols and enforcement in the agricultural industry to protect workers from the hazards of confined spaces and exposure to dangerous gases. It serves as a tragic reminder of the ongoing risks faced by farm and dairy workers, particularly vulnerable populations like immigrant laborers.