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Au�u,t 18.2UI1-I <br />�Ir..lim'I homas <br />Rcl��cdcrc Luls 3� :ind 3 ± <br />L�1�1 .loh Nu. 4AlIR8 <br />I':i�r H <br />shallow dcplhs ;u� ul mudcr.ucly-high lu high shcar strenglh, nnd shuidJ makc il unlikcly lix soil <br />I;drral sprcading and liyuclnctian Iu occur un ihc silc. "fhcrcliirc, scismic haz.ird tiir thc sitc <br />shuuld alsu hc minim�il. 'I'hc residcnccs lo bc cunsUucicd on Ihc lots, howcvcr. should hc <br />dcsigncJ liir scisiuic lirrces induccd on Ihc structurc hy slrong rarthyuukcs. Hascd :�n thc soii <br />d:ua ohtaincd I?om thc ics� pils, Ihc tioil Prulilc'fypc at Ihc sitc undcrlain hy nudium-densc to <br />drnsc adv.mc� ou�wush snnd shuuld bc classilicJ as S�� in :iccoril;incc �cilh Ilic I')97 I IR(' cudr. <br />tilTl: I'RI?I'AI2A'I'ION AND C:fsNf:RAL GRAUING <br />tiilr prcparnliun shuuld includc clr.u•ing and gruhhing ��ithin cumlructiun limils. Luusc lill. <br />topsoil, suli silt .mJ wrak suils in ihc rool zunc should hc compicicly slr.ppcd within �hc <br />drivr�vaqs and building p.ids. 'I his ma}� reyuirc ovcr-cxcav:i�iun uf 7.0 fcct in somc urcas within <br />thc ridgc shclf ul'ihc luls. "I'hr rxposed surfucc should hr compncled to a non-yiclding st.ite wilh <br />;i vihr:itory rolicr cumpactur a�ul pruul=rullcd �vith thc c;irth�vork cyuipmcnt uncra�cd on silr. <br />I hr un-silc surliciul soils cont;iin a high perccnlagu ol� lincs and ,vc scnsitivc to muislurc. A <br />I,i)'cr ufcic;in yuun'y sp.ilis should bc placcJ u��cr cxruvnlci' arcns und .ircas of �rcqucnl truflic, :is <br />rcquircd, lu prulrcl Ihr stibgra�lc suils li'om dislurbancc hy cuuslructiun u',i�7ic. Silt Icncrs <br />should bc crcc�cd alung thc duwnslopc boundnrics of thc ridgc shclf urca tu ��rrvcnt scJimcnls <br />hcin� h'�inspurlcd unlu Ilir slccp slo�ic ��r aJj;iccnl prn�icrlics ��r �hr strccl. <br />1?S('AVA'I'IUN ANU 1�11.1, tiLOI'I�:ti <br />Undrr nu circtunslanre shuul�l r.ec:nuliun slu�ics hc grcalcr Ih:m thc limils sprrilirJ hy lur,il, <br />suuc and IcJcrul salciy rcgui:uions if workcrs havc tu perli�rm canstruction work in r�cav.urd <br />are;is. I Insu�i�un1r�l irm��orir�� culs grc:dcr Ihan 4 Iccl in hcigld xhoul�l not hc stceper lh;m <br />I I I I\' in ihr ,iuliri;il lill �n ,uli �ih ��r �hr un�lrrhin�� li,��rr;inrr ti;inJ Jr��usils. Prnn,inrni rut <br />LIU S AtiSOCIt1'I'I�:S, INC. <br />