Briones Reservoir
 Briones Reservoir is an open cut terminal water storage reservoir owned and operated by the East Bay Municipal Utility District (EBMUD). It is located in the hills northeast of Orinda California. It is formed by Briones Dam an earthen dam completed in 1964. The reservoir is the largest of EBMUD’s five East Bay terminal reservoirs with a total capacity of 60510 acre·ft (74640000 m3) and it has a total watershed of 8.59 square miles (22 km²).