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6 Dead in Colorado Dairy Farm Accident

Six men died after exposure to hydrogen sulfide gas at a confined manure pit in a Weld County dairy, with a high school student among the victims, authorities said.

  • On Friday, the Weld County Coroner's Office released the names of six men who died earlier this week in a dairy accident at Prospect Valley Dairy east of Keenesburg, including Highland High School student Oscar Espinoza Leos, 17, and Alejandro Espinoza Cruz, 50.
  • Investigators say a worker who entered an underground manure pit may have accidentally released hydrogen sulfide by adjusting a valve or pump, exposing others to deadly gas.
  • The victims were all male with ages 17 to 50; sources said one worker collapsed and five others entered despite an on-site supervisor's warnings, while four related family members were confirmed by worker advocates and GoFundMe organizer Juan Mendez.
  • Federal OSHA has opened a six-month investigation, while Weld County Chief Deputy Coroner Jolene Weiner completed autopsies Friday pending toxicology and further testing.
  • Advocates say incidents like the May 2024 Western Sugar Cooperative accident, which incurred over $168,000 in federal fines, highlight risks across Weld County's 2.5 million-acre agricultural sector.
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6 dead in Colorado dairy farm accident

A suspected accident at a dairy farm in Colorado killed six people this week, including four members of an extended family.

·San Francisco, United States
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U.S. News broke the news in New York, United States on Friday, August 22, 2025.
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