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SOURCE - Winter 2016

MWD and L.A. County Sanitation Districts 12 SOURCE winter 2016 to Partner on 168,000 AFY Groundwater Replenishment Project By Penelope B. Grenoble, SOURCE Editor MWD’s Regional Recycling Water Supply Program at buildout. West Coast and Central basins are at lower left and center left, Raymond Basin and Eaton Wash Spreading Grounds at upper left, Main San Gabriel Basin and Santa Fe Springs Spreading Grounds at top center, Chino Basin and Spreading Grounds at upper right, Rio Hondo Spreading Grounds at middle right, and Orange County Basin and Spreading Grounds at lower right. Center bottom: the Sanitation District’s Joint Water Pollution Control Plant (JWPCP) where the groundwater replenishment project’s advanced water treatment facility will be located. IN WHAT ONE DAY MAY BE HAILED AS AN HISTORIC AGREEMENT, and which in any event will likely result in substantive changes in how Southern California gets its water, the Board of Directors of the Metropolitan Water District of Southern California (Metropolitan) and the Sanitation Districts of Los Angeles (Sanitation Districts) have voted to proceed with an indirect potable reuse (IPR) pilot project that will explore the possibility of sending advanced treated wastewater to groundwater basins in Los Angeles, Orange and San Bernardino counties. The votes came within a week of each other in mid-November 2015. Metropolitan appropriated $15 million same location to the Central and West Coast provide land and utilities, dispose of brine for design and construction of a one-million groundwater basins and to the Upper and and waste streams, and perform influent gallon per day (MGD) advanced treatment Lower San Gabriel Basins, among others. laboratory analyses. In addition to funding, pilot plant to be built on the site of the During the pilot phase of what Metropolitan design, construction, and operation of the Sanitation District’s Joint Water Pollution is calling the Regional Recycled Water Supply demonstration facility, Metropolitan will Control Plant (JWPCP) in Carson, northwest Program, the Sanitation Districts will deliver conduct feasibility studies for a full-scale of Long Beach. Plans call for eventual delivery one MGD of secondary treated effluent as advanced treatment plant and determine of purified water from a full-scale plant at the source water to the pilot treatment plant, water quality, regulatory, and flow parameters. 2015


SOURCE - Winter 2016
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