The California Division of the Occupational Safety and Health Administration has fined the state's Department of Water Resources following a 2009 accident at the Edward Hyatt hydropower plant. DWR is appealing the citations, wire services reported.
Last July, a steel panel in a dam tunnel collapsed at the hydroelectric facility located at the base of the Oroville Dam, injuring five employees, according to media reports.
At the time, workers were performing tests on two valves that regulate the flow of river water from the Feather River to the hydropower plant, wire reports indicate.
One man suffered head trauma, a broken arm and broken leg, while four others had more minor injuries, wire services reported.
Cal-OSHA has fined the department more than $140,000, according to wire reports.
Department spokesman Ted Thomas said the agency is appealing the fines and that DWR feels there are some errors in the investigation's findings, wire services reported.
For more hydropower news and information, click here