2006 Water Comprehensive Plan - City of Bellevue

CHAPTER 11Recommended System ImprovementsPrevious chapters have concentrated on projections of future water consumption, systemrenewal and replacement needs, and on analysis of existing and required future water systemcomponents including storage, distribution, supply, and transmission capacity. This chaptersummarizes recommended water system improvements. The improvement recommendationscontained in this Plan focus primarily on ongoing programs which the City established toaddress various needs. Recommended improvement programs are listed in Table 11-2 at the endof this chapter, along with estimated annual program funding level recommendations. This planalso recommends specific projects to increase storage and regional supply inlet capacity in orderto meet the needs of future growth. These recommended projects are listed in Table 11-1, alongwith planning level cost estimates and the year they are expected to be needed.The Bellevue Water Utility's Capital Investment Program (CIP) is a separate document thatprioritizes projects and identifies funding plans for a 7-year period, updated and adopted biannuallyconcurrent with the City’s operating budget. The CIP provides for orderly expansionand improved system reliability and integrity in conformance with utility policies explained inChapter 2. Project schedules and the allocation of funds for projects and programs arereevaluated and prioritized during each CIP update.This plan does not attempt to identify every capital improvement needed to serve all potentialdevelopments within the study area. Specific onsite or offsite improvements that are needed asa result of development activity are generally the developer’s responsibility, and are outside thescope of this water system Plan.SYSTEM IMPROVEMENTS SINCE 1998The City's 1998 Water Comprehensive Plan outlined a program of improvements to Bellevue’swater system. Most recommendations were for programs to address various on-going systemneeds. These on-going programs will be discussed under the “Recommended SystemImprovements” section of this chapter. The only specific program initiated since 1998 is theupgrading of several reservoirs to improve or maintain water quality. A brief discussion of thatproject follows.Reservoir Water Quality UpgradesThis project was identified as a potential project in the 1998 Water Comprehensive Plan. It wasinitiated following implementation of operational changes recommended in the 1998 WaterComprehensive Plan and completion of a subsequent water quality assessment. Theimprovements include installation of online chlorine analyzers at water storage reservoirs,11-1