I get my water from "The Water Man" which is a franchise that purifies water and puts it in special non-leech bottles. The water is so clean that the ice is Crystal C. transparent! Very cool. I don't know if they've gone national yet. Only bad thing about them is they don't deliver like sparklets.
Consumer reports online has an article on which bottled waters are in non-leaching bottles. It's a good subject to read up on.