I'm admittedly a newbie on this stuff, so apologies is this is a dumb question...
On my first trip up last week I relied on the dip-n-sip. I was on my way down and stepped off the trail near the stream flowing from Trailside meadow. I saw a(n impressively large) pile of human waste not more than about 5 feet from the stream behind a rock--no wag bag or anything. This wasn't the only un-bagged feces I saw but was definitely the biggest eww factor given its proximity to water I'd been drinking from earlier on.
What sort of risks are there from human waste contamination? It's a fast flowing stream with lots of clear water, so are the few piles of human waste enough to contaminate the whole source??
