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( <br /> M:�T�i, �a. zo�o <br /> �lddition to Stecves Residence <br /> L&A .lob No. I 0-008 <br /> Pagc 5 <br /> undisturbed state can provide good lixmdation support �vith little settlement cspected for <br /> liehl tu mudcratc rcsidcntial struclures. <br /> SO1L CONDITIONS <br /> Wc wcrc thc gcotcchnical cnginccr uf� rccord for a nc��� duplcx buildine pr��jcct <br /> constructcd a couplc of ycars ago on thc Rcicrcnce Sitc (I 13d G�and Avc), at about thrcc <br /> to Ibur blocks north of the subject residcnce site. Wc provided gcotcchnical enginecring <br /> and construction inspcction scrviccs. and vcrilicd footing bcaring soils and evaluatc cut <br /> bank stability of footprint cxcavation Ibr the Referencc Pr�jccL 'l�he building footprint on <br /> thc Rcfcrcncc Sitc was cut down to about 7 fcct dccp. 'l�he soil conditions cxposcd on thc <br /> cut hanks ���cre contposcd ot' 10 to 12 inchcs of d�rk-bro�vn. loose, organic topsoil. <br /> undcrlain by 3 to 4 fcct of light-Uro���n, dcnsc, tinc to medium sand wilh a tracc of gravcl. <br /> 'I�his sand laycr �vas undcrlain by a dcposit of gray, harcl, tinc sandy silL A siccl '1'-bar <br /> manually rushcd into 1'ooting bearing soils at bottom of cxcavation could pcnctratc no <br /> morc than an inch, indicc�ting thc 1'ooting bcaring soils �vcrc very dcnsc to hard. '1'hc cut <br /> banks of� Ihc building tiiotprint cxcavation ol' thc Refcrcncc Si!c had stood vcry stablc <br /> ��ithout any signs ol'ravcling or sloughing. Wc cxpcct thc soil conditions at thc suhjcct <br /> residrncc sitc to hr simiiar to thosc at thc Rctcrcncc Sitc. <br /> GROIJNDWATER CONDITIONS <br /> n vc��� ���in��r tricklc of ground���atcr sccpagc (Icss than 0?� gpm) out of thc cut bank was <br /> obscn�cd on Scptcmbcr 5. ZQ07. at thc soinhcast corncr oi' the building footprint <br /> LIU & ASSOCIATES, INC. <br /> �; � <br /> S ,J <br />