California Gov. Jerry Brown last week appointed Grant Davis as director of the state’s Department of Water Resources. Davis, 54, general manager of the Sonoma County Water Agency, brings an unusual resume to the job. With a degree in political science from the University of California, Berkeley, he had never worked for a water utility until joining the Sonoma County agency in 2007 as assistant general manager. Previously, he spent a decade as executive director of The Bay Institute in Novato.