Mining halted at “Lake A” in the Chain of Lakes
The move to end mining in a Tri-Valley lake became official this week. Alameda County planning commissioners on Monday approved plans for restoring the Eliot Quarry, where more than a century of rock mining in the unincorporated area between Livermore and Pleasanton will eventually be turned into lakes surrounded by open fields and recreation trails. … [T]he project will include the planting of native trees and shrubs, creating passages for fish, and reducing the amount of groundwater lost to San Francisco Bay by deepening the lake so it can hold more water.