PHILLIPS STATION, Calif. (AP) – Officials will trek into the mountains once again to measure California’s snowpack, in the hopes that recent storms have added to the state’s water supply. The California Department of Water Resources will perform the second survey of the season Thursday in the Sierra Nevada. Winter snow provides drinking water for much of the state as it melts in the spring and summer and flows into reservoirs. The Sierra snowpack was 67 percent of normal in this winter’s first manual measurement earlier this month. Precipitation has been up and down as California recovers from a drought that led to tight water restrictions for residents and farmers and contributed to severe wildfires. A three-year drought emergency ended in 2017, but officials said water conservation efforts must continue.