NOW THE CONCERN IS TOO MUCH WATER "How California's next superstorm could affect LA's water supply " Curbed LA

"What's of greatest concern today is the potential breach of the California Delta levee system, which would contaminate the state's freshwater supply with flooding sea water. This is what's called saltwater intrusion, and it's the worst-case scenario for the state's water supply , according to
meteorologist Eric Holthaus :
The implications of this flood..."

http://la.curbed.com/2017/2/20/14671618/california-storm-rain-2017-flood-reservoirs