preview

Southern California Water Resources Case Study

Better Essays

Although the South Coast Water District services parts of San Clemente’s water, the water SCWD distributes goes through several wholesale tiers. As mentioned earlier, the Metropolitan Water District of Southern California delivers water to 26 member agencies located throughout Southern California (Figure 1). To supply more than 300 cities with potable water, MWDC supplies the Southern California region with imported water from the State Water Project and the Colorado River Aqueduct. An estimated 45% of Southern California’s water derives from these two water sources; the remaining differences are met by local sources. The Metropolitan uses 16 hydroelectric facilities, nine reservoirs, 819 miles of large-scale pipes and five water treatment …show more content…

Through the MWDOC, Orange County receives 50% of its total water demand. The Municipal district purchases imported water from the Metropolitan and allocates the water to the 28 client agencies shown in Figure 2. The remainder of Orange County’s water demand is met by an underground aquifer, several small groundwater basins, and from recycled wastewater treated by several local water agencies. The local water supply is managed by the Orange County Water District (OCWD), which serves North and Central Orange County. MWDOC and OCWD work cooperatively to facilitate the water distribution across Orange County, MWDOC manages imported water while OCWD administers the local water supply. However, because OCWD only services the northern and central areas of Orange County, South Orange County is nearly 100 percent dependent on imported water. The South Coast Water District services areas in South Orange County shown in FIgure 3. The water SCWD administers to its member agencies originates from two sources: imported water from the Metropolitan and recycled water from Aliso Creek Water Reclamation Facility (ACWRF). Imported water comprises 90% of the SCWD’s water demand while treated water constitutes the remaining 10%. The imported water is brought from MWDSC’s Diemer Filtration Plant located in Yorba …show more content…

The filtration plant also houses a 5.1 megawatt hydroelectric power plant that uses gravity-flow to distribute the water to areas in Los Angeles and Orange County. The SCWD allocates the potable water from the filtration plant through 158 miles of pipe, 13 reservoirs, nine pump stations and a Groundwater Recovery Facility with a production capacity yielding 0.85 million gallons per day. The South Coast Water District recycled water is produced through ACWRF where the reclamation facility recycles 728,000 gallons of water each year. The reclamation facility treats urban runoff and mixes it with water from Advanced Wastewater Treatment system to decrease the salinity of the recycled water. The water is then used for irrigation and is able to be stored in two reservoirs, totaling an approximate 3.7 million gallons of water storage. To distribute the reprocessed water across the SCWD service area, 20 miles of pipe and 3 pumping stations are used. Along with providing potable and recycled water to the service areas in Figure 3, the South Coast Water District offers wastewater services. The district sanitary sewerage system removers nearly 4 million gallons of wastewater through 133 miles of pipes, 14 lift stations, and 3 miles of force

Get Access