How Long it would take to Empty the place?I believe you resided in The Val,Am I correct?All of the water for Burbank & Anything West of there in The Valley,Get's it's water from The Northern Aquaduct,of Which is fed Originally from,Owens Lake,Up near Mammoth in The High Sierra's,The LA Basin get's it's water from The Colorado river,Via The LA Aquaduct,San Bernardino,Riverside,Orange Counties get their water from a similar Aquaduct Branched off from The LA one.All of The Aquaduct's Travel along,thru,or aside a Fault or Many Faults/Zones,It Probably wouldn't take much,as long as Most of the Fault Zones, became active All at the same time! I'm All for it,We have Too Many Derilict Visitors,That really don't give a rats keester for The Environment in General!