Hodges Reservoir was created with the building of Hodges Dam on San Dieguito Creek in 1918. Operated and maintained by the city’s Public Utilities, the reservoir serves the San Deieguito Water District and Santa Fe Irrigation District as well as the city.
Lake Hodges takes in runoff from all over San Diego County and, as such, the water contains lots of impurities. These are cleaned up in filtration plants before going out to the public.
The purpose of the Hodges Reservoir Oxygenation System Project is to reduce and control excessive algal productivity in the reservoir with the intent to improve water quality and restore the drinking water supply allowing greater water supply interconnectivity and reliability.
The Project will involve the construction of Hypolimnetic Oxygenation System (HOS). The HOS will add dissolved pure oxygen into the deep portion of the reservoir to make up for that lost by bacterial decay of algae, alleviating water quality problems, controlling algal blooms, internal nutrient cycling and improving fish habitat. The proposed Hypolimnetic Oxygenation System was supplied by ECO2.
Innovative and highly effective, SuperOxygenation technology is an eco friendly alternative to traditional chemical treatments for water and wastewater. Focusing on odor and corrosion prevention, ECO2 has helped cities across the country solve their needs in both municipal and industrial applications.
Become a leader in water treatment.
ECO2 SuperOxygenation systems for water and wastewater treatment are designed and produced by Eco-Oxygen Technologies, LLC headquartered in Indianapolis, Indiana. The technology is the pioneering effort of Dr. Richard Speece, Centennial Professor Emeritus of Civil and Environmental Engineering at Vanderbilt University.
The ECO2 oxygenation method is a simple process based upon the scientific principle of Henry’s Law. No chemicals and no moving parts other than standard industrial water pumps are used. The result is a robust, reliable, economically competitive and environmentally friendly technology.
In municipal applications, ECO2 technology eliminates hydrogen sulfide odor and corrosion by dissolving pure oxygen in wastewater at high concentrations (50-75 mg/l) which prevents the formation of hydrogen sulfide and the associated “rotten-egg” odor. This approach saves money on alternative chemicals, provides pretreatment and does not increase total dissolved solids. ECO2 engineers are presently focused on wastewater projects in Maine, Indiana, California, Kentucky and Texas.