Giardia, other bacteria and viruses can be present in the water. Filter, boil or chemically treat all water using effective techniques or equipment. There are many excellent and reliable systems for purifying or filtering water. The amount of water available in streams and springs can vary from season to season. Although there are many excellent sources of water, some tend to be less reliable than others.
Water is limited or unavailable along some of the longer ridge walks in northern Vermont.
The Long Trail Guidebook identifies areas on the trail that are prone to shortages. During hot, dry seasons, ask oncoming hikers about water. Be aware of sources in areas where you are hiking. Plan to carry extra water. Winter Filters and purifiers may not function properly in freezing temperataures.