I think you would have to work at it a little in most areas. You could probably squeeze enough to survive out of your socks.

Seriously though, Canoedogs is right. Without a means of purification, you would have to decide if your situation warrants the risk of consuming unknown water. I have consumed untreated water from the middle of a BWCA lake with no ill effects, and I have consumed water from cold springs with no problems.

In the porous limestone Karst topography that dominates 2/3 of Minnesota, it is not uncommon for a stream to emerge from the ground, flow for a mile, and then disappear underground again. It might run through pristine meadows and woods, or through a barnyard. I don't recommend drinking unknown unfiltered water except for last ditch survival.