Why Oroville Dam’s Woes Could Cut Into California Water Supplies

The fractured spillway at Oroville Dam has forced the state to spend tens of millions of dollars on emergency repairs, with millions more to come. Here’s another potential cost: a slice of California’s water supply. Dam operators are expected to run Lake Oroville, the state’s second largest reservoir, at lower-than-usual water levels this summer as they wrestle with the complicated and lengthy task of fixing the dam’s broken spillway.