**Back-of-the-book Summary: **Unlock the secrets to water survival with our comprehensive guide on sourcing, purifying, and storing underground water. This authoritative resource covers every angle, from understanding the human bodys water needs to designing percolation ponds, rainwater harvesting systems, and cisterns. Discover innovative techniques for extracting underground water using passive and active methods, while ensuring safety with purification strategies and legal considerations. Whether youre building contingency plans for drought or preparing for natural disasters, this book equips you with crucial insights for thriving in water-scarce situations. Essential for survivalists, preppers, and eco-conscious individuals alike, this book makes sure youll never be left high and dry.