The report from UC Irvine’s Center for Hydrologic Modeling is an update to a 2011 study which showed the basins lost nearly as much water as the volume of Lake Mead over a seven year period.
The new report finds water storage in the last two years continues to plummet, and the study doesn’t even include the most recent dry winter.
Report author Jay Famiglietti says the amount of water lost is equal to the water used by all of California’s urban areas each year. Most of the loss is due to groundwater withdrawals.
Famiglietti says groundwater levels drop faster during drought than they can be replenished during wet periods.
“This is a worse than ever situation," says Famiglietti. "So we really have to watch what’s going to happen with the groundwater. It’s been bad in the past during drought periods and now with a zero surface water allocation I’m quite concerned that it will be terrible in the future.”
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.
California farms and ranches saw a nearly 17 percent drop in revenue from 2014 to 2015, according to a new review. The decrease had little to do with the drought.
California's tree die off has led a state oversight board to review forest management policies.