A site should not be selected on the assumption that water can be acquired merely by drilling, digging, or hauling.Drilling may not be feasible and may not provide adequate water.

• 如果只是假定某地的水源能通过钻井、挖掘或者搬运的方法获得，这个地点应不予考虑：因为钻井有可能无法实现或者不能提供足够的水；