California water officials, still struggling with fixes at Oroville Dam, will have to temporarily shut down the pumping station that delivers water to much of Southern California and Silicon Valley after discovering damage at another key state reservoir. The state Department of Water Resources confirmed Tuesday that operators discovered damage to the intake structure at the Clifton Court Forebay, a nearly two-mile-wide reservoir that stores water for the State Water Project pumping plant in the Sacramento-San Joaquin Delta near Tracy. Repairs will begin Wednesday. It’s not clear how long they will last.