Iowa H2O offers 16.9 ounce, 3 gallon, and 5 gallon bottled water. Our water is purified by reverse osmosis and ozonation. We start with water from the Mississippian Aquifer located in downtown Fort Dodge. We take the water and run it through a series of filters and then into a reverse osmosis unit. Our reverse osmosis unit is capable of purifying 32,000 gallons of water per day. After purification, it is stored in three 3,000 gallon storage tanks. To ensure the purity of our water, we inject ozone into the storage tanks. The water is then sent to various fill stations for bottling.