Just wondering if all the INGO preppers think a pond is sufficient water storage option for an emergency. I have a cabin property where I will go in an emergency and I have plenty of food, ammo, guns, staples, etc. The house sits on a 1 acre spring/runoff fed pond. I just always figures I would pump water out of the pond and filter/boil/treat it in an emergency. Am I over simplifying this option?