It is always a good idea to have a healthy respect for mother nature and her ability to cause havoc with the human digestive tract. I have become over-cautious with regards to consuming anything that hasn’t been run through some sort of system for sale to the general public. When I see water running out of a hillside through a piece of pvc pipe, my usual inclination is to just keep driving. But I have known about this spring on Route 79 near Lisle, New York since I lived in Ithaca in the seventies. The water is cold and very refreshing. John Hoeffel and I used to drive here with empty 5 gallon carboys to get water to make beer.