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., <br />� <br />2. Conditinns :ind Rcuuirements Summarv <br />Conditions �ind reyuircments will he detcrmined at the time o1� jurisdictional re��ie���. <br />• <br />3. Offsitc An:�l�•sis <br />1 sitc reconnais�ancc �,cas �ione hc J�ssc .larrell, P.G. of V�'estern Gngittecrs lnc. on <br />� :\pril 19, 201 I tu �'crify thc do��nstrcam flo��' paths. Thc «eathcr ��as p:.-tly sunny <br />�� ith a tcmncraturc around 45 deercrs. <br />The ,ipprorimate 0.52 acre siie is de� cloped �aith one single family residencc, concrcte <br />drive�va��, single cm� gar.�ge, gra��cl drive�vay and 2 car carport. The remaining portions <br />� ��f the si�c consist of resiilcntial landscnping and slopes to the suuthwest to north at slopes <br />ranging from'_%tu S"-o. Pcr thc SCti Soil Sur�ey of Snohomish Count�'. thc sitc contains <br />;�Idcrwood Sande L�,;�m t�pi s.�ils. <br />• A: Upstrcam Anah�sis <br />1=rotn acrial map� ��f thc smrounding to�,ogra��h�� �nd a sitc cisit thcrc does not <br />;�ppcar ;o be any si�nilicant upstream Ilon:ti cntcring into the sita P�ssiblc upstrcaui <br />� Runoff from 4"' A�c \Vest is imercepted b�• an c�ist�ng �ertic;il concretc curb linc <br />��hich drains ro an underground slorm convcyancc system located :dong the rist <br />side ol'thc road. Undcrground Stortu system con��cys dtc runoff from 4'�, r\�-e \Vesi <br />to Ihe south, and �wuy trom the site. ReCcr to photo 1 of upstrcam photos for <br />:uiJi�ional information. <br />1 I�,titmam runoff from th� .�djaccnl ��roperty to thc south of� lhc sitc is mainlc <br />a�m�cycd to thc nurlhrnst prn'tion al thc adjnccnt property through shcct Ilnw ����cr <br />thc cxisting asph;dt ��arkin�! IoL As thc �laws frotn thc e�isting parking arri rcach <br />thc nor�heast corncr �f thc adj:ucn� property, thc�� fl����• into an adjaccnt vcgct:itcd <br />la���n :uc;� which npncars to contnin Ihc ntajorit}� of the fluws �rcicr tu �,hot�� '_ uf <br />upstre;un pho�os li�r.�dditional infi�nnalion) <br />I'cr sitc visil no April 19, 201 I it ,ippears that minor scdimcntaUon buildup Gom thc <br />�nrking lot run�,ft, ��ppcars �o be building up ncar the norlheast c�rncr oCthe <br />adj�cent properly. Though no signi�ic�nt erosion appears �o be imp;�c�ing the site, it <br />is suggcstcd that �he ndjaccnt property o�cncr providc maintcn�ncc and cicTnup of <br />this scdimentatiun arc.i lu prcvcnt futurc upstre,�m runoff impacts lo thc sitc. Duc to <br />I=: ; 101 I/ I 1 1U70;A ! l�ruin.igc Keporl.�loc <br />