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10EnvironmentReport2014SeattleCityLighttestedbyemployees.Productsthatperformwellbecometheapprovedsupplieswhilenewproductsconnuetobeevaluatedandapproved.Chemicalsareevaluatedforenvironmentalandsafetyconcerns.Alternavesareassessedforproductsofconcernandsubstuonsarerecommendedwherefeasible.Computerspurchasedbytheulitymustmeetstrictenvironmentalstandards.ForseveralyearsallthepurchasedcomputershavemetthehigherE-PEATElectronicProductEnvironmentalAssessmentToolgoldstandard.Tomeetthatstandardthecomputersuselesstoxicmateriallessenergyandareeasiertorecycle.AllnewoverheadtransformersandmanyothertransformersarelledwithaUSDABioPreferredesteriedvegetableoilasustainablysourcedlowtoxicitybiodegradableproduct.Bio-basedchainsawoilandhydraulicuidsareusedandbio-basedturbineoilsarealsobeinginvesgated.CityLighthasbeenusingwoodpolesthataretreatedwithcoppernaphthenateformorethan20years.Thisistheonlywoodpreservaveapprovedforpolesinsertedundergroundthatisnotarestricted-usepescideaccordingtotheU.S.EnvironmentalProteconAgency.Theulityscedarpolesaredippedinavatofthepreservavesoonlytheboomofthepoleistreatedtheburiedpartplusafewextrafeet.Thetopofthepoleisuntreatedandnaturallyrot-resistantwesternredcedar.RossLodgebeforerenovationBuiltin1938thelodgewasaone-and-a-half-storybuildingtohousesinglemenwhosharedcommoneatingandloungingareas.SavingEnergyInaddiontohelpingourcustomerssaveenergyandmoneyCityLighttakespridesinitsowneortstobemoreenergyecient.Severalrecentexamplesaredescribedbelow.Since2010SealeCityLighthasconvertedmorethan40000streetlightstoenergy-ecientlight-emingdiodesLEDs.Thenewstreetlightswillreducetheamountofenergyusedbyupto60percentandsavetheCityofSealeabout2.4millionayearinoperangcosts.CityLightownsover50housesforemployeesworkingattheSkagitRiverHydroelectricProjectinthetownsofNewhalemandDiablo.Builtbetween1925and1960noneofthesehomesmetcurrentenergyeciencystandards.In2010CityLightembarkedonaprogramtoinstallheatpumpsinsulaonandenergy-ecientwindowsallwhilepreservingthehistoriccharacteriscsofthehouses.Whencompletetheprojectwillmakethehomesmorecomfortableandsaveenergyandmoney.