COMBIE RESERVOIR SEDIMENT and MERCURY REMOVAL CALIFORNIA
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Combie Reservoir Sediment and Mercury Removal

California

Great Lakes E&I is currently performing removal activities at this reservoir which contains accumulated sediment with elemental mercury, as well as restoration of reservoir capacity for residential, agricultural, recreational, and environmental use. The project will combine emergent technologies for a unique application of safe elemental mercury removal from recovered sediment. Design and treatment will successfully sort and collect sediment, remove mercury, and discharge effluent water that meets background conditions to the reservoir. All treatment processes must be in compliance with local, State and Federal project permits and environmental regulations for water quality, environment, and wildlife.

Combie Reservoir is located on the Bear River, which lies along the Nevada-Placer County border. The sediment that flows into Combie Reservoir contains elevated mercury concentrations that persist from historic gold processing practices used over a century ago throughout California’s Sierra Nevada watersheds.