Springs: Although the Park may have natural sources of clean, potable water, any water source could become polluted. Most water sources along the trails (with the exception of public developed area facilities) are unprotected and susceptible to contamination. All water should be purified, preferably by boiling for at least two minutes, chemical treatment, or filtering with a portable water filtering system. Avoid contaminating the water supply and surrounding area. Dishes, clothes and hands should never be washed in the water supply. Washing should be done well away from the water supply.