A plan requiring suppliers to reduce water to California cities and counties by nearly 15 percent—and 33 percent or more in inland areas—by 2035 is raising concerns from state analysts, some of whom say that the regulations could cost billions of dollars and save only about 1 percent of water used annually.
Although such rules are directed at urban water suppliers, 95 percent of Californians who drink and use water from those agencies could also be affected by higher water rates.