At 08:37 AM 14-01-99 -0700, you wrote: snip> When I was a child, a thousand years ago, I was >always told it was safe to drink out of a free-flowing mountain stream. >Not any more. Margaret L That was the case in my childhood as well, even at Girl Scout/Guides camp; I can remember drinking out of mountain streams, lovely tasting water....and that's only 40-50 years ago. I'm not as aged as Margaret. :) Lucinda