The Orange County Sanitation and Orange County Water Districts are planning for treated wastewater, currently discharged into the ocean, to undergo microfiltration, reverse osmosis and ultraviolet disinfection. The purified water will be equivalent in quality to distilled water and exceed all state and federal drinking water standards. The purified water will be pumped to spreading ponds near the Santa Ana River for percolation into the groundwater basin, with some injected through injection wells along the coast as a barrier to seawater intrusion. Like the WRD projects in Southern California, the Orange County Water District has amassed a long record of successfully recycling water with its Water Factory 21.