Friday night, 6,000 gallons of untreated and or partially treated sewage was released into Wolf Creek from the Wastewater Treatment Plant in Grass Valley, according to a press release from the Nevada County Department of Environmental Health. The release of wastewater was due to a clogged digester pipe, the release stated, adding that all contact with the water downstream to the Bear River should be avoided until further notice.
Grass Valley plant personnel cleared the blockage at 9:30 a.m. Saturday, cleaning up the sewage and posting warning signs in the immediate area. Environmental Health personnel have notified the residents within close proximity of Wolf Creek to avoid contact with the creek until further notice.
Nevada County Environmental Health is working with the city of Grass Valley to minimize any impacts and will monitor the situation until there are no longer any remaining public health concerns, the release stated.
— The Union staff