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3.0 'iRITIGIL AREAS INVESTICATION RESULTS <br /> Thc results of ihe infortnalion rc�ic���, uctland dclincalirni, and watcn�a� rcconnaissancc for ihc <br /> arr� somh of Scaway Boulcvard arc dcscnbcJ in this scction. Thc rcsults of �hc infonnaiion rc�•ic�e, <br /> �cetlnnd dclincaiion. and Naten�•:rv reconnaissance for the area notth uf Seaway Boule�:ird, u-hich <br /> indudes thc locations of propoxd monitoring wclls associatcJ ai�h the Phase I IA, arc incluJed in ihc <br /> H'rrlmid Dclnu�orion Hrporr L t 9(Landau Associatcs 2012)cuRcmly undcr rc�ic�e by ihc USeiCL. This <br /> seclion pro�ides an upJate to the Augusi '_I. 2009 Urq�r li1•11rmd Drlinrutiun Hrpor( Pmrdrr',t1i!! Gidch <br /> Onsilr Prupern (Landau Associalcs 2009). <br /> 3,1 RACKGROUM1'D INFOR�fAT10N KEVIE�1' <br /> I'hc nsulis of Ihc infonnaiimi rccic« arc Jcscribed in this scc�ion. ICcv rcicrencc infomtation can <br /> bc found in rlppcndix A. <br /> 1.1.1 �V.1TER\\'A\'ti ANU F ItiH UtiACF: <br /> Thc topu�raphic r„�� r�,< <n� ���,i«� ;�«;, iusos i4��� iJcntitics an unnamcd stream assnciatcd <br /> ui�h Ihe Pp1G tandforni along thc ��ctitcro sidc uf the study area (Appcndis A1. '1'his s�nam is identi�icd <br /> un ihc SircamNct «ebsiic as "PouJcr \lill (iulch (LLID I?22723474570).. and is a trihulary �o Pugc� <br /> SumiJ (StrcamNct ��cbsrtc ?009). l�his slrcam is rcfcrtcJ lu as Powdcr \till Gcck in ihis rcpon lu avoid <br /> cunfusin�i ��iih �hc P\1G landfonn. I'hc Ciq's criiical arca mappinc idcntifics Po�rdcr �till Crcrk in ihc <br /> propascd project ricinity as a TSTc Np walenvay(i.c..percnnial nonfish sireaml. <br /> SalmonScapc docs not idcnlify usc of Po�cdcr A1ill Crcek by mlmomds within thc stuJy arca <br /> (\1'DP1V 2001). No lish hace been documented in Pmcder hlill Creck ahnce Scaway 13uulevard lJones fi <br /> Siokcs 1�1K9. Damcs A Moorc 199�. UR$ 2pOG). Although msidcnt fish may harc historically bccn <br /> prescnl in Pn�cJcr \till Creck. thcir ahscncc on Bocin� propctt�' ;�hotc Sca�cay Roulceard has bccn <br /> ca�ilirnicd h� numcruus cicctrulishing suncys (URti 2p0(�). 1 hc abxncc of�ish in Po��dcr 11i11 Crcck in <br /> ihc siuJy arca is lar�clp duc tu thc prescncc of scccral man•m�Jc impcJimcnis �o tish pass�gc <br /> downstrcam uf ticaway Haulc�'arJ.mduJing Ihr cuh�cn at Sca�cay [3uulc�ard and culvcns locatcd farthcr <br /> Jo�ansiream ai \tukilico Roulc�arJ ;mJ ihe Burim��on Nonhcrn Sanl:i Fc railrnad tracks at ihc muuth of <br /> ihc creck. I'hc cul�ch a� Scaway Buuicvard �s a eumplcic hamcr lo Ihc upstrcam pnssagc ul fish. titrr.un <br /> fluws in this rcach atc in�cnniucnl or c.�trcmcly Im� Jurin� thc lu�r Ilou moiuhs, hul fi�iws can cxcccd <br /> 40 cubic fcet per sc�und I�is) ��hcn wa�er is discharged o�cr Ihc spill�aay (URS 2006). If fish c�cr ��crc <br /> prescnt in Ihc segmcnl of Powdcr �iill Creck in �hc s�uJy areu, it is likcly tha� thcy ucrc cx�irpatcd in Ihc <br /> rcach abo�r Seau;�y 13uulevard hy slochastic c�ents, sueh ;is penods ��hen ihe sveam channel has grnic <br /> .. . . ,L•��c�c:eu.-,n.w.,a�ar�r•..c,.r,,;,.�n�.euun�^3E..,n•,: u�aaeq0ui.sc�s�n.a.cnana LayDAUA550CiATCS <br /> 3-i <br />