The mandatory reduction includes residents and businesses. Commercial water customers are required to reduce irrigation by 30 percent for landscaping. It also bans the washing of cars or boats without a nozzle, and prohibits the washing of outdoor surfaces unless necessary for health and safety.
Roseville says outdoor irrigation accounts for more than half of a typical home's water use, and says reducing that is the quickest way to reach the 20 percent goal.
The city gets most of its water from Folsom Lake, which is extremely low due to the drought. Earlier this year, the city turned on its groundwater wells in order to conserve water from the lake, but turned them off this month after more rain and snow fell in Northern California. The city of Sacramento has also implemented a mandatory 20 percent reduction.
While Roseville is calling the reduction "mandatory," water customers will not be hit with a surcharge or penalty if they do not meet that target.
Roseville, the largest city in Placer County, operates its own utility, which serves most of the 127,000 residents. Officials backtracked on a February proposal that would have used surcharges to compel reductions
Water conservationists criticized Roseville's approach, saying that without an enforcement or penalty structure, customers were unlikely to heed the call. But city leaders expect that education and outreach will translate into cutbacks.
The Associated Press contributed to this report.
California Communities Respond To Drought
California is experiencing one of its wettest winters in years. But farmers on the west side of the San Joaquin Valley still won’t receive a full supply of water from the federal Central Valley Project.
Some farmers who rely on water from the federal Central Valley Project may receive more water than they’ve had in several years. Others will have to wait until mid-March to find out what their allocations will be.
The San Joaquin County Board of Supervisors has voted to continue its drought emergency while other counties are looking at lifting conservation measures.
A UC Santa Cruz study finds transmission of West Nile virus is higher in drought years.
Today's Sierra snowpack survey has scientists with the California Department of Water Resources optimistic about the state's water supply.