DENVER – The U.S. Department of Labor’s Occupational Safety and Health Administration has cited three companies after its investigation determined workers died after exposure to hazardous gas at Prospect Ranch in Weld County, Colorado.
OSHA’s investigation found that on August 20, 2025, a pipe in the manure management system at Prospect Ranch LLC disconnected, releasing manure water and hydrogen sulfide gas. Contractors Fiske Inc. and HD Builders LLC were hired to perform work on the system. A Fiske employee and a Prospect Ranch employee attempted to stop the flow but were overcome by the gas. Subsequently, three more Fiske employees and one Prospect Ranch employee entered the pump room, which led to the loss of a total of six workers. HD Builders employees were present but unharmed.
OSHA cited Prospect Ranch LLC for serious violations including failure to protect workers from atmospheric hazards, have a written hazard communication program and train workers on methods to detect hazardous gases. The company faces $132,406 in proposed penalties.
The agency also cited Fiske Inc. for serious violations including failure to protect employees from hazardous atmospheres, and failure to provide hydrogen sulfide detection training. OSHA proposed $99,306 in penalties. HD Builders was cited for violations including failure to have a written hazard communication program and failure to provide training on detecting hydrogen sulfide for which OSHA proposed a $14,897 penalty.
IMEC Technologies provides Safety Management Software to increase worker safety and aid compliance. IMEC’s Safety Management Software will manage inspections and audits, provides hazard identification, incident reporting, management of corrective and preventative actions from generation to closure. IMEC provides lock out tag out software solutions that will allow users to create lockout tagout procedures using an intuitive Mobile App and Manage Lockout Tagout Procedures, also the Review and Execution of those Lockout Tagout Procedures using the Mobile App. Annual Lockout Tagout Procedures audits are conducted using a Mobile App. The Mobile Inspection App allow users to perform inspections and audits, for example the system can be used as a Fire Extinguisher Barcode Inspection Software system to manage monthly fire extinguisher inspections and general fire safety inspections and also to record safety observations and manage corrective actions, anywhere and anytime. The solution can be used as a fire extinguisher barcode inspection software system or life safety inspection system to aid compliance in Higher Education, Healthcare, Industrial and Commercial Organizations. Benefits from a Fire Extinguisher Barcode System include the elimination of paperwork and reducing the burden of compliance with regulations such as NFPA, The Joint Commission. The Incident Reporting App allows users to easily and quickly report incidents, hazards and near-misses, these are then sent to the appropriate people for action and are managed to closure. Web Apps provide features such as, setup, management, scheduling tools, analysis, reporting and dashboards etc with the ability to report incidents to government bodies such as OSHA and RIDDOR. HazMat T&T is a hazardous waste management software solution designed for Environmental Service Companies and companies who generate a large quantity of hazardous waste. The solution tracks hazardous waste from cradle to grave aiding compliance, providing accurate waste inventory, increasing waste handling efficiency, reducing risk and also helps manage waste costs. HazMat T&T Hazardous Waste Management Software can be deployed in a number of deployment scenarios, from Large Hazardous Waste Generators, tracking their hazardous waste at their site to Environmental Service and Waste Management Companies using it track and manage hazardous waste at transfer and disposal sites. For more information visit our website www.imectechnologies.com