Final Report, 2010 Urban Water Management Plan - Culver City

Table 7-2:Water Loss Control Evaluation SummaryReport YearPrescreenCompletedPrescreenResult2006 Yes 92.0%2007 Yes 99.2%2008 Yes 91.5%2009 Yes 94.8%Note:2010 Data Not applicable; M36 method implemented.Implementation Steps and ScheduleEffective 2010, GSWC will continue to complete the Standard Audit and Water Balanceworksheets following the AWWA M36 protocol for the next four years, taking measurable stepsto improve data accuracy while cost-effectively reducing non-revenue water through repair ofleaks and other measures. The water audit for calendar year 2010 will be completed by mid-2011.GSWC used version 3.0 of the AWWA Water Audit software for its initial evaluation, and will usethe current software for 2010 and all future evaluations. The current version includes metrics forevaluating the validity of the data. GSWC already has a work order system in place thatdocuments leak locations and repair history.7.3.1.4 Metering with Commodity Rates for All New Connections and Retrofit ofExisting ConnectionsAll customers in Region II are metered and billed by volume on a monthly basis. A metermaintenance and repair plan has been submitted to the CUWCC. In addition, GSWC follows therequirements of CPUC General Order 103-A which prescribes minimum water system design,operation and maintenance standards for water utilities includes requirements for calibrating,testing frequency, and replacing water meters.7.3.1.5 Retail Conservation PricingAll metered customers in Region II are billed volumetrically. In addition, effective December2010, GSWC has implemented a third tier of a conservation pricing rate structure for residentialcustomers, as approved by the CPUC for Region II. The current rate structure for residentialcustomers has a fixed charge as well as volumetric escalating pricing tiers, depending oncustomer usage. Non-residential customers have a fixed charge and a fixed volumetric charge.Implementation of this revised pricing policy is the result of GSWC’s collaboration with CPUC toimplement conservation tiered rates for residential customers of investor-owned utilities. Tieredrates are consistent with the CPUC’s Water Action Plan.Implementation Steps and Schedule2009 and 2010 volumetric and fixed price revenue data for the Metropolitan Reporting Unit aresummarized in the BMP Coverage Report located in Appendix C. Since 2010, GSWC has beenadding third tier pricing structures and increasing volumetric charges. In 2010, volumetricPage 7-6Final 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