A truck can only hold 8,000 gallons vs 24,000 for a tank car (water is 8.4 pound per gallon)... Oregon has laws prohibiting export of state water, as does WA, ID and SD....the Great Lakes have laws prohibiting extract of water except for grandfathered existing water users on both the US and Canadian sides...(Great Lakes Compact, signed by G.W. Bush) Most states prohibit import of any water treated with choline...in the Central Valley, near Lemoore, there are now deep reach super wells almost 2000’ feet deep (J.G. Boswell Co.) and California has fallen in love with desalination plants that take about 10 years for permitting and building...never mind about the huge power consumption of these plants and the fact that hydroelectric power generation will be lost across California...Oroville, Shasta, the Big Creek Project and Hoover and Clen Canyon Dam (Lake Powell)...lot of moving parts to this drought story, but bottom line is many homes (and businesses) in Arizona and Southern California will soon become waterless and then worthless...we are seeing this outside of Phoenix in the Rio Vista Foothills area...same for places near Fresno (Clovis) Expensive homes, waterless, worthless except for scrap...The main water supply to the southwest is the Colorado River and it is going away...AZ gets 50% of thier water from the Colorado, LA gets about 35%, San Diego gets about 50%, TJ about 80%...now is the time to consider moving to someplace with lots of water...As they say, water is the new oil...oh, buy the way...there are is already a water by rail company...