2006 Water Comprehensive Plan - City of Bellevue

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• Aging infrastructure and corrosion;• Permeation and leaching;• Nitrification;• Biofilms and bacterial growth;• Covered storage;• Decay in water quality over time; and• New or repaired water mains.In addition, EPA and American Water Works Association are currently preparing 10 issue papersrelated to the development of revisions to the current TCR. These papers will cover thedistribution system topics of:• Indicators of water quality;• Effectiveness of disinfectant residual;• Compliance with the existing TCR;• Assessment of distribution systems;• Optimization of monitoring strategies;• Hazard analysis and control strategies;• Accumulation of inorganic contaminants;• Nutrient availability;• Causes of contaminant events and positive coliform samples; and• Total coliform sample invalidation.The date for a proposed revised TCR rule and/or Distribution System Rule is uncertain at thistime. However, any developments with either rule will likely have an impact on Bellevue. It isquite possible that these rules will include the use and documentation of best managementpractices within the distribution system. Cross-connection control may be a primary focus. Aspart of this Water System Plan update, a detailed review of Bellevue’s cross connection controlprogram was conducted to ensure that Bellevue’s program fulfills all required elements of crossconnectionprogram so as determined by Washington State.10-15
SUMMARY OF REGULATORY STATUSReview of water quality data collected between 1999 and 2004 indicates that Bellevue compliedwith all applicable federal and State drinking water regulations. Table 10-7 summarizes thoseregulations and Bellevue’s compliance status.Table 10-7Summary of Applicable Regulations and Compliance StatusRegulation Requirements Status Compliance?Phase II Rule• Monitor distribution system for • Meets MCLasbestosYesSurface WaterTreatment RuleTotal Coliform Rule• Monitor chlorine residualsthroughout the distributionsystem• Written Plan• Monitoring• Meets minimum Cl 2requirement• Monitors throughoutdistribution system as part ofSPU regional program• Meets MCLsTotal Trihalomethane • Monitoring • Monitored at two distributionRule 1 system locations.• Met MCL.Lead and Copper Rule • Monitoring • Monitors as part of SPUregional program• Meets MCLsCCR and PublicNotification Rules• Annual Reports• Reporting as needed• Consumer ConfidenceReports published annuallyYesYesYesYesYes1 The Stage 1 D/DBP Rule replaced the TTHM Rule in 2002, but as a consecutive system, Bellevue was not required tocomply.10-16
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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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Page 139 and 140: total business risk exposure.Determ
Page 141 and 142: PIPELINE RENEWAL AND REPLACEMENTBel
Page 143 and 144: In 1999 Montgomery Watson completed
Page 145 and 146: CHAPTER 8System AnalysisThe purpose
Page 147 and 148: from Seattle’s Eastgate and SE 28
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
Page 161: CHAPTER 9Operations and Maintenance
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 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 196 and 197: separation of common water inlets/o
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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