How recent floods will recharge California groundwater
The State Water Resources Control Board has approved a request by the U.S. Bureau of Reclamation to divert floodwaters from the San Joaquin River so they can percolate down to aquifers. The plan would divert 600,000 acre feet of water — or more than the 191 billion gallons supplied to the city of Los Angeles each year. … Newsom also has signed an executive order temporarily lifting regulations and setting clear conditions for diverting floodwater without permits to recharge groundwater storage. Groundwater accounts for as much as 60% of California’s water supply during dry times. The aquifers usually refill when rain and floodwater percolates through the soil and into the basins. As California’s drought lingered, the basins weren’t recharging.