Quick Answer
Ice holes can be trusted as emergency water sources if they are properly managed and maintained. Freezing temperatures and ice thickness are critical factors in determining the safety and usability of an ice hole.
Assessing Ice Safety
When considering an ice hole as an emergency water source, it’s essential to assess the ice’s thickness and stability. A minimum thickness of 4-6 inches (10-15 cm) is recommended for walking on, but for a hole to be safe, it should be at least 8-10 inches (20-25 cm) thick. This is particularly crucial when considering the weight of a person or the equipment needed to access the water below.
Finding Safe Ice Holes
Look for areas with consistent ice cover, such as near the center of a lake or where ice has formed over a long period. Avoid areas with open water, such as near inlets, outlets, or where water flows into the lake. When finding a suitable location, use a auger or shovel to create a hole that’s 2-3 times the size of the opening to prevent the ice from collapsing. If the ice starts to crack or form pressure ridges, it’s best to find an alternative water source.
Purifying Ice Hole Water
Once you’ve accessed the water, it’s crucial to purify it before consumption. Boiling the water is the most effective method, but if a fire isn’t available, using water purification tablets or a portable water filter is a suitable alternative. Aim to filter or boil at least 1 liter (34 oz) of water per person per day to ensure proper hydration.
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