California’s West Basin Water District has awarded its largest ever water-reuse contract to Parsons Corp (Parsons) on a design-build basis. The Edward C Little Water Recycling Facility in El Segundo is known as the only facility in the world that produces five different types of recycled wastewater, and it will be undergoing its fourth expansion since its original construction in 1995 from 113,500 CUM/day to 174,000 CUM/day. As part of the USD 60.6 million expansion, Parsons will expand the water purification facilities to produce an additional 18,900 CUM/day of water supplied to the seawater barrier to prevent seawater intrusion and refill groundwater supplies. Also included is an ozone pre-treatment facility, irrigation water facilities and various solids handling facilities to improve water quality and efficiencies at the plant.