The Groundwater Replenishment System is an innovative project built in Fountain Valley, CA with the intention to provide northern and central southern California with a new source of water.
"The Groundwater Replenishment System takes highly treated sewer water and purifies it to levels that meet state and federal drinking water standards - as pure as bottled water. It uses a three-step process that includes reverse osmosis, which is used by manufacturers of bottled water, as well as microfiltration and ultraviolet light and hydrogen peroxide advanced oxidation treatment.
The water will then be used to keep the ocean out of our groundwater basin and be percolated into deep aquifers where it eventually becomes part of our natural drinking water supply. The GWR System water exceeds all federal and state drinking water standards. The underground basin provides more than half of the water used by north and central Orange County."
The Groundwater Replenishment System cost nearly $485 million to build.
Majority of text quoted from the GWR official website. Please visit their website at http://www.gwrsystem.com/ for more information.