Engineering Services Related to Preliminary Engineering for the Groundwater Reliability Improvement Program Recycled Water Project, Water Replenishment District of Southern California
CLIENT/VALUE
Water Replenishment District of Southern California
SERVICES PROVIDED/VALUE
Technical Research; Site Investigation; Meeting Coordination; Alternatives Analysis Update Report; Preliminary Engineering Report; Feasibility Study; Preliminary Cost Estimates; Pipeline & Hydraulics Design
$250 Million
DRC served on the consultant team to provide preliminary engineering services related to the Groundwater Reliability Improvement Program (GRIP) Recycled Water Project for the Water Replenishment District (WRD) of Southern California. WRD, in conjunction with the Los Angeles County Sanitation District, wished to study potentially feasible project alternatives to offset unreliable imported water supplies by providing up to 21,000 acre-feet of recycled water per year to replenish the Central Basin. To complete its study, WRD retained the services of a consultant team to provide an Alternatives Analysis Update Report, a Preliminary Engineering Report, and a Feasibility Study. DRC contributed to examining these project alternatives: installing an Advanced Waste Treatment Facility at the San Jose Creek Water Recycling Plant; water treatment processes, including reverse osmosis, ozone and biologically aerated carbon, ultraviolet/advanced oxidation process, and microfiltration/ultrafiltration; building a five-mile transmission pipeline to deliver recycled water to the San Jose Creek and Rio Hondo Spreading Grounds; and water injection at the Montebello Forebay.