Gov. Gavin Newsom renewed his calls for strict water conservation measures across California in a meeting Monday with the state’s largest urban water suppliers — warning that if local efforts don’t save enough water, the state will have to enact mandatory restrictions.

“Every water agency across the state needs to take more aggressive actions to communicate about the drought emergency and implement conservation measures,” Newsom said.

“Californians made significant changes since the last drought but we have seen an uptick in water use, especially as we enter the summer months. We all have to be more thoughtful about how to make every drop count.”

Newsom will meet with the agencies again in two months to get an update on conservation efforts. He also asked them to submit water use data more frequently and increase transparency so the state can more accurately measure whether it is meeting its conservation goals.

The State Water Resources Control Board is scheduled to vote Tuesday on a statewide ban on watering non-functional turf at commercial, industrial and institutional locations. The board will also consider requiring local agencies to implement water use restrictions. Local water agency restrictions currently only cover about half of California’s population.

The city of Los Angeles will enact two-day outdoor watering restrictions starting on June 1, down from the current three, with watering permitted at odd-numbered street addresses on Mondays and Fridays, and at even-numbered addresses on Thursdays and Sundays.

On Friday, Mayor Eric Garcetti met with California Natural Resources Agency Secretary Wade Crowfoot to highlight the need to protect the region’s trees, even with water restrictions, amid the historic drought. Trees can capture stormwater, improve water quality and reduce flood risk, along with helping air quality and the impacts of heat waves.

Once the watering restrictions take effect in Los Angeles, outdoor watering with sprinklers will be limited to eight minutes per station. Sprinklers with water-conserving nozzles will be limited to 15 minutes per station. All watering will have to be done in the evening or early morning, with no watering permitted outdoors between 9 a.m. and 4 p.m.

The two-day watering restrictions will be enforced by the Conservation Response Unit, which will focus on areas that are using the most water, according to DWP General Manager and Chief Engineer Marty Adams. He said when the restrictions were announced that the department will re-assign employees to ensure coverage in all areas of the city, and might bring on additional personnel during the summer.

Garcetti also said the water restrictions’ enforcement will begin with education for people who are violating the ordinance, but it will escalate with fines and tickets if needed.

The city’s policy is less strict than some parts of L.A. County, which will be limited to one-day per week watering. The Metropolitan Water District of Southern California, which supplies water to much of Los Angeles County — including DWP — ordered areas that depend on water from the State Water Project to reduce outdoor watering to one day per week.

“Metropolitan agrees with and supports the governor’s urgent call for increased water conservation and reduction in water consumption as we approach the hotter and drier summer months. We appreciate the governor’s collaborative approach in addressing statewide drought conditions by allowing water agencies to determine the water savings actions appropriate for the specific circumstances of their communities,” MWD’s General Manager Adel Hagekhalil said in a statement Monday.

Hagekhalil also called for people to conserve water beyond the restrictions.

According to Newsom’s office, banning watering of decorative lawns would save between 156,000 acre-feet and 260,000 acre-feet per year, the equivalent of water used by 780,000 households in a year.

The governor’s office also urged people to shower for only five minutes or less, stop taking baths, only wash full loads of clothes and use a broom instead of a hose to clean outdoor areas.

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