The cost to bring Anderson Dam, which holds back the largest reservoir in California’s Santa Clara County, up to modern earthquake standards has increased to $2.3 billion, water officials said Monday. That’s double what was estimated a year ago, triple the price tag from two years ago, and nearly certain to drive water rates higher next year across Silicon Valley. … In 2020, federal dam safety officials ordered the reservoir along Highway 101 between San Jose and Morgan Hill drained and its dam rebuilt to modern seismic standards. … The board is likely to consider higher water rates in the coming months to make up the cost to repair the massive dam, a linchpin of Silicon Valley’s water supply.

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