Construction is half complete on the 10-mile pipeline that will connect the Carlsbad desalination plant to the San Diego County Water Authority’s distribution system, according to the plant's developer, Poseidon Water.
When finished, the Carlsbad desalination project will be the largest seawater desalination plant in the Western hemisphere. The pipeline under construction began in spring 2013 in San Marcos, where street restoration is underway in areas where pipe has been installed. About 26,400 linear feet of the large-diameter pipe has been installed through San Marcos, Vista and Carlsbad.
The desalination plant is expected to be complete by 2016 and provide up to 7 percent of the county's potable water by 2020. It will produce up to 50 million gallons a day of fresh water, which would account for about one-third of all the water generated in San Diego County.