Jolene Bertetto, a water conservation technician with East Bay Municipal Utility District, takes a water sample from runoff in a neighborhood in Oakland, California April 8, 2015. Bertetto was conducting investigations into waste water and sources of water leaks as the state's top water regulators released a framework for enforcing California's first statewide mandatory restrictions on urban water use. These restrictions include water usage cuts of 25 percent for non-agricultural users, and were ordered last week by Democratic Governor Jerry Brown as a devastating drought enters its fourth year. REUTERS/Robert Galbraith