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LAKEVILLEWATERTREATMENTFACILITY EXPANSIONSTUDY B&VPROJECTNO.179946 CITYOFLAKEVILLEPROJECTNO.1214 PREPAREDFOR CityofLakeville,Minnesota AUGUST2013 I hereby certify that this report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota. _____________________________________ Scott D. Fronek Date: 8/20/13 ® License Number: 45419 ® CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 1.1.1.1.1.1.1 TableofContents 1Introduction.......................................................................................................................1 2BasisofAnalysis................................................................................................................5 3PopulationProjections...................................................................................................6 4CommercialDevelopment.............................................................................................9 5WaterUseCharacteristics..........................................................................................10 6AverageDayandMaximumDayDesignFlows...................................................13 7WellWaterProduction................................................................................................17 8WaterTreatmentFacilityCapacity.........................................................................19 9WaterStorageVolume.................................................................................................20 10TreatedWaterPumpingCapacity............................................................................23 11WaterTreatmentFacilityImprovements.............................................................26 12OpinionofProbableProjectCost.............................................................................29 13ConclusionsandRecommendations.......................................................................30 BLACK&VEATCHCORPORATION|TableofContents CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 1Introduction 1.1PROJECTPURPOSE BLACK&VEATCHCORPORATION|Introduction WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota 1.2BACKGROUND AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy BLACK&VEATCHCORPORATION|Introduction WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota 1.3ABBREVIATIONS AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 2BasisofAnalysis BLACK&VEATCHCORPORATION|BasisofAnalysis WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota 3PopulationProjections AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy LakevillePopulationProjections 120000 110000 100000 90000 80000 70000 60000 50000 40000 30000 200020052010201520202025203020352040 2%growthMCES2010ProjectionActualpopulation Figure31.LakevillePopulationData&Projections BLACK&VEATCHCORPORATION|PopulationProjections WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 4CommercialDevelopment Table41.Industrial/Commercial/InstitutionalWaterUse YEARTOTALICIICITOTALICIWATERPERCENTOF CONNECTIONSCONNECTIONSCONSUMPTIONTOTALWATER ADDED(MG)CONSUMPTION DataprovidedbytheCityofLakeville. BLACK&VEATCHCORPORATION|CommercialDevelopment WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota 5WaterUseCharacteristics AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy Table51.PopulationandWaterConsumptionforYears20002011 YEARPOPULATIONWATERCONSUMPTION (GAL/PERSON/DAY) 200043,128118 200144,751123 200246,285100 200347,523128 200449,097115 200551,722111 200652,323126 200753,829135 200854,328123 200955,772118 201055,954104 201156,534111 201257,048122 BLACK&VEATCHCORPORATION|WaterUseCharacteristics WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota WaterConsumption 140 130 120 110 100 90 80 2000200220042006200820102012 Year Figure51.Waterconsumptioningallonsperpersonperday(GPCD)Lakeville AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 6AverageDayandMaximumDayDesignFlows BLACK&VEATCHCORPORATION|AverageDayandMaximumDayDesignFlows WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota Table61.WaterdemandinLakevillefrom20002011 YEARAVERAGEDAYAVERAGEPERMAXIMUMPEAKINGFACTOR DEMANDCAPITADAYDEMAND(MAX.DAY/AVE.DAY) (MGD)DEMAND(MGD) (GPCD) 20005.111816.33.2 20015.512320.23.7 20024.610013.42.9 20036.212816.92.7 20045.611515.62.8 20055.711118.13.1 20066.6126182.7 20077.213520.42.9 20086.712320.23.0 20096.611817.12.6 20105.810413.22.3 20116.3111152.4 20126.912217.22.7 AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy Table62.Designflowscalculatedforbothpopulationgrowthscenarios. YEAR 2%POP.GROWTH2%POP.GROWTH MCPOP.GROWTHMCPOP.GROWTH AVEDAY(MGD)MAXDAY(MGD) AVEDAY(MGD)MAXDAY(MGD) BLACK&VEATCHCORPORATION|AverageDayandMaximumDayDesignFlows WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota WaterDemandtoCommunityBuildout 45 40 35 30 WTFCapacitywhenfiltersloadedto4gpm/sf(26.5MGD) 25 20 WTFCapacity=20MGD 15 10 5 0 200020052010201520202025203020352040 Year AD2%ADMCESMD2%(MGD)MDMCESAveragedailydemandMaximumdaydemand AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 7WellWaterProduction Table71.Lakevillewells,ratedpumpingcapacityandactualpumpingcapacityduringthesummer WELLSUMMERPUMPING WELLNUMBERCAPACITYCAPACITY (1)(1) (GPM)(GPM) BLACK&VEATCHCORPORATION|WellWaterProduction WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 8WaterTreatmentFacilityCapacity BLACK&VEATCHCORPORATION|WaterTreatmentFacilityCapacity WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota 9WaterStorageVolume AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy Table91.TreatedwaterreservoirvolumeforeachincreaseinWTFcapacity. YEAR 2%GROWTH2%GROWTH MCGROWTHMCGROWTH WTFWTF WTFWTF TREATMENTRESERVOIR TREATMENTRESERVOIR CAPACITYVOLUME CAPACITYVOLUME (MGD)(MGD) (MGD)(MG) 26.54.1 26.54.1 405.1 405.1 BLACK&VEATCHCORPORATION|WaterStorageVolume WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota Table92.ProjectedDetentionTimewithinFinishedWaterStorageFacilities YEAR 2%GROWTH2%GROWTH2%GROWTH MCGROWTHMCGROWTHMCGROWTH STORAGEAVERAGESTORAGE STORAGEAVERAGESTORAGE VOLUMEDAYFLOWFACILITY VOLUMEDAYFLOWFACILITY (MG)(MGD)DETENTION (MG)(MGD)DETENTION TIME TIME (DAYS) (DAYS) AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 10TreatedWaterPumpingCapacity BLACK&VEATCHCORPORATION|TreatedWaterPumpingCapacity WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota Table101.IncreasesinHighServicePumpingCapacityfor2%populationgrowthscenario. YRWTFMAXRESERVOIRREQUIREDTOTALFIRMNOTES CAPACITYDAYVOL.(MG)HSPSPUMPING (MGD)CAPACITYCAPACITY (MGD)(MGD) AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy Table102.IncreasesinhighservicepumpingcapacityforMetCouncilpopulationgrowthscenario. YRWTFMAXDAYRESERVOIRREQUIREDTOTALFIRMNOTES CAPA(MGD)VOL.(MG)HSPSPUMPING CITYCAPACITYCAPACITY (MGD)(MGD) BLACK&VEATCHCORPORATION|TreatedWaterPumpingCapacity WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota 11WaterTreatmentFacilityImprovements Table111.WaterTreatmentFacilityImprovementSchedule WATERTREATMENTFACILITY IMPROVEMENTS AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy WATERTREATMENTFACILITY IMPROVEMENTS BLACK&VEATCHCORPORATION|WaterTreatmentFacilityImprovements WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 12OpinionofProbableProjectCost Table121.OpinionofProbableCostforCompleteExpansionofWTFandTruckShop. General Requirements$ 1,400,000 Site work $950,000 Water Treatment Facility Expansion$ 15,700,000 Truck Shop Expansion $610,000 Upgrades for Safety, Redundancy and Reliability$ 200,000 Contingency (30%)$ 5,300,000 TOTAL $22,900,000 BLACK&VEATCHCORPORATION| WaterTreatmentFacilityExpansionStudy|CityofLakeville,Minnesota 13ConclusionsandRecommendations 13.1CONCLUSIONS AUGUST20,2013 CityofLakeville,Minnesota|WaterTreatmentFacilityExpansionStudy 13.2RECOMMENDATIONS BLACK&VEATCHCORPORATION|ConclusionsandRecommendations