EXH0353021219

PCHBPollution Control Hearings Board of the State of Washington

ATTENTION: Mu_ Walker,CraiITerzi. ]_'i_s2.,i _/_ " _1Washington StateDcpmqrn_ntof_olog_, -- " " ' Bellevue, Washington 98008-5452 ATTENTION: A_n Kenny RE: Departmentof the Army Section 494Petit AppLication,SeaTacAirport Reference: 1996-4-02325 D¢_ Ms. Walker, Tcrzi, andKermy: The Port of Seattle has submitted to Ecology a document entitled "Low FLowAnalysis - Flow ImpactOffset FaciLityProposal,"written by Parametrix,dated3"uly2001. This letter eomment_on behalf of theAirportCommtmitiesCoalitionon thatdocument,w_th;-thecomuaiats of averyshort ,-vviewperiod. Please also refer to letters fi-omWaterResourcesConsulting dated September 19, • 2000; February 15, 2001; M._ch 12, 2001; and_uly18, 2001. Althou_ the new low flow study is marc sub_ in t_rms ofshe_ weight than the December 2000 Low StreamflowAnalys_s,itisnotmarcsubstantialintc_-msofreasonableassurancethat _he Port's SeaTacplans will meet waterqualitys_ndardainthethree main creeks. The Departmentof EcologyandtheCor_sofEugineershavebeenaskedtoaccclI amonstrous15poundsofunneees_zy paper print-out of hourly stream flow calibration damin lieu of a mature and well considered propasal, The textofthedocumentisnotfinished.Missinginformationisshownby%vild_d" dummy _gu_ numbersreferringtofigurestha:do notexist,essentialappendicesaremissln_caos_ m fm-cnocsarcsotfunctional,scct/onsendwiththeannouncement"scclionnotcampke,¢."ThePort's acknowledgedconfusionnecessitatedaclar_cationletterdatedJuly25,2001.Thewholeeffort the appearanceofadcspcrameffortto submit something,regardlessofquality.Thi_olu_actor_c makesitconsistentwkh previoussubmittalsfro_thePort.PleaserememberthatthisisthcPort's third augmentationwatersource,anditsthirdapplicationfor401certification,since1998, The cover Lettersays tha_"the vaults will include features (both structuraland oper_.tional)for managingwaterquality_ ensurethere areno adverseimpac_ fromdischargesfrom the flow impact offset faoility."No s_a[ f_'u_s ar_ shownonanydrawings;sof_ theywarrantonlya cosr,epmaldet=iption.Thesedan onOl_0rai_onsays"TheFinalPlanwillincludethedetailsand specif_'ity thatis n_t available at the presenttime" (p. 2_). The _proposedgc_emI opcrat[ng AR 021219 R.Y.DATE/TIME .AUG,-08' 0l [WEgZng:Sb z2ub3402,_._4 Z'.uU6 0"8-_li-lOOl09:Otiu_h'oz-HELSELL,.. zE_WI dOE340ZS24 T-293 P003/005F-693 • ,.,-_zr.-2_,i ] l, _ FR',._WAT_-ZP,,_.Lb_u._CE.._C",_$ 36_7G 1Q4._ P. 3 To.,_i,WaJkcr,Kcnny 2 August 6, 2001 sc.heduh"(p.27)saysthat"if_t_fi_ wa.tm"qualityviolationsarcindicated,"thePortwill "installlrn_,taiafilt_rsfors,'dirncnt.q_bidity/metals"and"_ustallportableaeratorsforDO."These stepscannotbedonsatthelastminute,asanafterthought,withanyexpectationthattheywillwork. Theyhavetobe"designed,built,t¢ste.d,andrefinedbeforetheneedforthemarises.A looseplanto installsonmthingaRertheneed',_omesapparent,fallsshodofr_asonableassu:r_ce, Reference(p.14,15)ismadezoworkinprogress,anddatathathasnotbeensubmitted.ThePort iscurrentlyinvestigating_trationofstormwater,includingtheeffectivenessofseveralfiltration media;thedatawillbeavailablebeforef.maldesignbutatenotavailablenow.ThePartalsorecently startedrecordingtmmperaturcinseveralstormwat_rvaults,butdoesnotcaretosharethedatasothe publiccanevaluateit. •Thenewlowflowanalysissaysthatthc'_isarcqugrementforatotalof46ac_efe_ofstorageinthe three watersheds, consisting of 18.8 acrefeet in the MillerCreekwatershed, 15 ac-_ feet in Walker Creel and 12.2 acre f_t in Des Moines Creel The plan…
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