EXH0109017885

PCHBPollution Control Hearings Board of the State of Washington

Northwest Region,_l Office • 3190 If;Orh Avenue SE • Bellevue, Washington 9@008-$4._2 • (42.;] _49-7000 April27,2000 WilliamA.Rozeboom K.MalcornLeytharn NorthwestHydraulicConsultants,Inc. 16.300ChristcnsenRoad,Suite350 Seattle,WA 98188-3418 DearMr.RozeboomandMr.Lcytham: Pc: YourletterofAprilIl,200LtoGordonWhiteconcerningEcology'sReviewofthePortof Seattle'sDecember2000Low S=eamflowAnalysis Iam respondingonbehalfofGordonWhim toyourletterofAprillfl,2001.Inyourletteryou expressedconcernsthatthememo writtenbyDaveGarlanddatedMarch9,2001didnot constituteacompleteanalysisofallthepossibleconcernsrelatingtothePort'sLow Streamflow Analysis. You areessentiallycorrect.Mr.GarlandwastaskedwithreviewingtheintegrationofPacific GroundwaterGroup's"Slice"modelalongthelengthofthefillembankmentandhow embankmentdrainagewouldeffecttheLow StreamflowAnalysis.Hismemo wasnocintended toprovideacomprehensivecritiqueofalltheissuespertainingtolowstreamflowsand streamflowmodeling.KellyWhitingofKingCountywascontractedbyEcologytoreviewthe Port'sHSPF modelingandprovidecommentstous.EcologyisusingDaveGarland'scomments, thecommentsfromKingCountyaswellasthecommentsfromthepublic(includingyourletter ofFebruary15,200I)toanalyzeissuesrelevanttothePort'sLow Sta'earnflowAnalysis. Ecologyisstillreviewingthismatterandhasnotreachedanyconclusionsdeterminingthe adequacyofthematerialsubmittedcousbythePort. Ifyouhavefurtherquestionspleasecallme at425-649..4310. Sincerely, Ann E.Kenny SeniorPermitSpecialist AEK:aek co: GordonWhite KevinFitzpamck DaveC.m'land RayHellwig AR 017885 EXH0109017885
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