I figured I'd keep it all in one place instead of having to search over several comment threads...
I just spoke with Steve at the water lab and the area I live in has the "best water in the world." My area is snow melt (he called it pristine) from the mountains and it is very soft. Just north of me and further south there are issues with some hardness. Atmel (chip maker) is south and they don't like to use the water down there - they prefer to use ours further north.