2006 Water Comprehensive Plan - City of Bellevue

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separation of common water inlets/outlets at reservoirs to improve mixing, and piping upgradesto decrease water age. The project scope also includes improvements to enhance Bellevue’sability to monitor water quality. The project was initiated in 2001 and is expected to becompleted in 2009.RECOMMENDED SYSTEM IMPROVEMENTSThe 1998 Water Comprehensive Plan identified long term improvement needs to addressstorage and regional inlet capacity deficiencies expected to occur just beyond the 20 yearplanning horizon of that plan. The need for those improvements fall within the planning horizonfor this Plan update. These improvements were addressed in detail by this Plan in Chapter 8 andare included below under “Projects to Address Future Capacity Needs”.The 1998 Plan also identified and discussed several on-going capital improvement programsrelated to maintaining and upgrading the City’s existing infrastructure. The individual projectsunder each program are identified on an annual basis and are located throughout the waterservice area. This Plan recommends the continuation of these programs, and recognizes theaddition of programs for replacement of water service lines and saddles, and for rehabilitation ofpump stations. Each program is discussed below under “On-going Capital Programs” and listedin Table 11-2.Projects to Address Future Capacity NeedsFour capacity improvement projects have been identified by the system analysis summarized inChapter 8. These improvements are needed to address deficiencies expected to occur as a resultof future growth and increasing water demands within Bellevue’s Central Business District(downtown), within the 20 year planning horizon.Addition of Storage to the West Bellevue Operating AreaIn the West Operating Area, calculated storage requirements are greater than provided byavailable storage reservoirs. This is projected to first occur in 2018. This project wouldconstruct 2.35 MG of additional storage. Of this total, approximately 1 MG is needed by 2025.Therefore, if 1 MG of storage is added by 2018, then additional storage will not be needed until2025.Increase System Capacity to Transfer Water from East to West Operating AreasThe total storage deficiency of 2.35 MG in the West Operating Area does not necessarily needto be addressed by constructing new storage. Additional storage capacity can be made availableto the West Bellevue Operating Area from the East Bellevue Operating Area’s 5 MG of surplusstorage. This project would construct two new 12-inch diameter mains and two large PRVstations to allow a greater volume of water to move from East to West Operating Areas.11-2
Modify and Rehabilitate the Bel-Red InletIn the West Bellevue Operating Area, inlet capacity is first projected to be less than the max daydemand by 2010. The City has identified a project to modify and rehabilitate the Bel-Red Inletto increase its capacity. The Bel-Red Inlet modifications are recommended for 2007 and willprovide sufficient capacity to meet projected Max Day Demands until the year 2018.Increase Supply Inlet Capacity to the West Bellevue Operating AreaAdditional inlet capacity for the West Bellevue Operating Area will be required prior to 2018 inorder to meet 2025 and build-out max day demand conditions. The required capacity can beprovided either by installation of new inlets or upgrades to existing inlets. The specifics of howCascade will provide future water supply to Bellevue are currently not defined, and willsignificantly influence decisions on how best to provide inlet capacity to meet Bellevue’s futuredemands. The cost of constructing additional inlet capacity has not been determined because itvaries depending on the specifics of Cascade’s plan for delivering water to Bellevue.On-going Capital ProgramsThe City has several on-going capital programs, with annual funding allocations identified in theCIP. The annual budgets for these projects were established based on the City’s experienceand/or studies to determine resource needs.Service Line and Saddle ReplacementBellevue is responsible for maintaining approximately 33,000 water services and saddles(connections to the main water line). This program addresses the increasing need forreplacement of aging and deteriorating service saddles and associated service lines. Many ofthese facilities have a shorter useful life than the associated water main. This program providesthe means for a more proactive approach towards maintaining the function of the City’s portionof individual service connections.Large Commercial Meter RehabilitationBellevue owns and maintains approximately 260 large commercial meters (greater than 3").This program rehabilitates or replaces deteriorating and unsafe vaults containing these meters,and upgrades or replaces the meters. This program should continue as a prudent means ofmaintaining the reliability and accuracy of commercial meters. Further discussion of thisprogram can be found in Chapter 7.11-3
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WaterComprehensivePlan
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ASSET MANAGEMENTR&R needs areregula
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CONTENTSExecutive SummaryPageiiiCha
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Chapter 12 - Financial Information
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10-1 Federal Drinking Water Quality
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CHAPTER 1IntroductionUtilities Depa
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Demand. The quantity of water obtai
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EKCEast King CountyEKC-CWSP East Ki
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CHAPTER 2Water Utility PoliciesThe
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owner agrees to reimburse the City
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Facility AbandonmentWhen the Utilit
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Discussion:The Utility should syste
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Discussion:It is Bellevue’s polic
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Discussion:In 1982, Bellevue, along
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Waterworks UtilityFinancial Policie
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B. Self-sufficient FundingEach Util
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B. Funding LevelsFunding for capita
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D. Capital Facilities Renewal & Rep
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overhead for developer extension pr
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equired to balance the expenses. A
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demonstrate that the hydrologic res
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adopted to recover those costs dire
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In 2004, the Financial Consulting S
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Discussion:Providing reserves for e
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individual Transportation Analysis
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Table 3-2Residential Population Pro
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2006CURRENT LAND USENE 8TH ST104TH
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SERVICE AREAThe current Bellevue ci
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Table 3-3Interties(Regional Supply
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Bellevue and Kirkland are currently
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Water District No. 22Water District
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Utility Service Review ProceduresTh
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CHAPTER 4Water RequirementsThe exis
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This type of demand is relatively c
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• Apparent Losses: Includes unaut
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Existing DemandExisting water deman
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The future build-out demand project
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Table 4-4cBuildout Demand Projectio
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Table 4-6Comparison of Eastside Com
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pressure throughout the rest of the
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Pressure ZonesPressure zones are de
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CHAPTER 5Water ConservationThe City
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identifies the main categories of a
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Table 5-2Historical Conservation Me
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Speakers BureauThis measure is defi
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Bill Showing Consumption HistoryThi
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schedules, and efficient irrigation
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Seasonal Demand ManagementThis meas
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RowTable 5-5Conservation Savings Ac
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Figure 5-1Single Family Water Use P
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Since the post-conservation era beg
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statement about each measure is inc
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CHAPTER 6Existing SystemThis chapte
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KIRKLANDREDMONDLakeWashingtonWest B
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City of BellevueWater Pressure Zone
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Supply ConnectionNE 40th InletCherr
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appropriate, PRV records also inclu
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Table 6-5Pump StationsPage 1 of 2Na
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Table 6-6Storage FacilitiesPage 1 o
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HYDRAULIC OPERATIONSTables 6-7 thro
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ZonePrimary SupplyConnectionsReserv
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ASSET MANAGEMENT PROGRAM DEVELOPMEN
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total business risk exposure.Determ
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PIPELINE RENEWAL AND REPLACEMENTBel
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In 1999 Montgomery Watson completed
Page 145 and 146: CHAPTER 8System AnalysisThe purpose
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Page 149 and 150: year. When these small-diameter pip
Page 151 and 152: Fire Flow VolumeDefinitionWAC 246-2
Page 153 and 154: increase in demand anticipated due
Page 155 and 156: Table 8-1bSummary of Storage Evalua
Page 157 and 158: Storage Conclusions and Recommendat
Page 159 and 160: To evaluate required capacity for t
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Page 166 and 167: Table 9-1Engineering and Environmen
Page 168 and 169: Table 9-3Water Department Vehicles
Page 170 and 171: RECORDS AND DATA MANAGEMENTSystem O
Page 172 and 173: Pump Stations. Each pump station is
Page 174 and 175: CHAPTER 10Water QualityThis Chapter
Page 176 and 177: Bellevue is responsible for monitor
Page 178 and 179: Table 10-2Annual Average of Total T
Page 180 and 181: esponsible for collecting any repea
Page 182 and 183: While the CCR provides an annual
Page 184 and 185: • Very Small System Waiver - Syst
Page 186 and 187: CCL, which is comprised of 51 (nine
Page 188 and 189: • Aging infrastructure and corros
Page 190 and 191: SUMMARY OF MONITORING REQUIREMENTST
Page 192 and 193: . At the time the backflow preventi
Page 194 and 195: Element 8: The purveyor shall inclu
Page 198 and 199: Fire Hydrant ImprovementsThis progr
Page 200 and 201: PRIORITIZATION OF IMPROVEMENTSCapit
Page 202 and 203: CHAPTER 12Financial InformationThis
Page 204 and 205: TABLE 12-2City of BellevueWater Uti
Page 206 and 207: during periods of high expenditures
Page 208 and 209: Bonds issued by the "Waterworks Uti
Page 210 and 211: TABLE 12-5City of BellevueWaterwork
Page 220: APPENDIX BService Area and Adjacent
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APPENDIX DAdjacent Purveyor Review
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CopyCenterFrom: Thompson, Randall L
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CopyCenterFrom:Scott Thomasson [STH
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CopyCenterFrom:Bob Trimble [bob.tri
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Consistency w/SPU forecast for wate
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Provision of SDWA water quality rep
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• Federally-approved habitat cons
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APPENDIX EConsistency Statement Let
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2006 Water Comprehensive Plan - City of Bellevue

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