Final Report, 2010 Urban Water Management Plan - Culver City

(d)(e)(f)groundwater recharge, and other appropriate uses, and a determination with regard to the technical andeconomic feasibility of serving those uses.The projected use of recycled water within the supplier’s service area at the end of 5, 10, 15, and20 years, and a description of the actual use of recycled water in comparison to uses previously projectedpursuant to this subdivision.A description of actions, including financial incentives, which may be taken to encourage the use ofrecycled water, and the projected results of these actions in terms of acre feet of, recycled water used peryear.A plan for optimizing the use of recycled water in the supplier’s service area, including actions to facilitatethe installation of dual distribution systems, to promote recirculating uses, to facilitate the increased useof treated wastewater that meets recycled water standards, and to overcome any obstacles to achievingthat increased use.4.8.1 CoordinationTable 4-9 summarizes the role of the agencies that participated in the development of recycledwater plans that affect the Culver City System of the GSWC.Table 4-9:ParticipatingAgenciesWater agenciesWastewater agenciesGroundwater agenciesPlanning agenciesRole of Participating Agencies in the Development of the Recycled Water PlanRole in Plan DevelopmentGSWC works closely with the West Basin Municipal Water District (WBMWD) inplanning a potential recycled water distribution system and identifying potentialrecycled water customers. WBMWD, acting as the recycled water wholesaler, wouldlead the way in implementing the recycled water plan and distribution network.WBMWD provides a reliable supply of recycled water that meets California recycledwater quality standards set forth in Title 22 of the California Code of Regulations.The Water Replenishment District of Southern California purchases recycled waterfrom WBMWD for injection into the West Coast Basin seawater barrierLos Angeles County Sanitation District, in conjunction with WBMWD, plays a key rolein conducting data and customer assessments, as well as analyzing community andeconomic impacts.4.8.2 Wastewater Quantity, Quality, and Current UsesWastewater in the Culver City System is collected by gravity sewers and lift stations owned bythe City of Culver City. The wastewater is transported through trunk sewers to the City of LosAngeles Bureau of Sanitation’s Hyperion Wastewater Treatment Plant (WWTP) for treatment.The City of Los Angeles owns and operates the Hyperion WWTP. The Hyperion TreatmentPlant is a secondary treatment facility with a design capacity of 450 million gallons per day(mgd). The WWTP treats an average dry weather flow (DWF) of 300 mgd of wastewater,serving approximately 4 million people. Treatment at the Hyperion WWTP consists of screening,grit removal, and primary sedimentation with coagulation and flocculation. In secondarytreatment, the primary effluent is biologically treated in a high purity oxygen activated sludgeprocess. After clarification, The WBMWD purchases approximately 37,600 ac-ft/yr (roughly9 percent of Hyperion’s secondary effluent) for advanced treatment at the Edward C. LittleWater Recycling Facility (ECLWRF) (WBMWD 2010 Draft UWMP). The remaining un-Page 4-8Final Report, 2010 Urban Water Management Plan – Culver CityGolden State Water Companyg:\adminasst\jobs\2010\1070001.00_gswc-uwmp\09-reports\9.09-reports\2011-08\grp3\gswc_culvercity_2010_uwmp-final.doc