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� <br /> March 14. 2010 <br /> Addition to Stccvcs Residcncc <br /> L8i/� Joh No. 10-008 <br /> Paec I R <br /> Surface Drainage <br /> Wartcr should not bc allowcd to stand in any arcas whcrc ti�otings, slabs. or pavcment is to <br /> bc construcicd. Finish ground surfacc should bc gradcd to tlow away from thc new <br /> residcncc. Wc rccommcnd thc linish groimd bc slopcd at a gradicnt of' 3 percent <br /> minimum ����r a distancc of at Icast 10 fcct away Irom thc buildings cxccpt in the amas to <br /> n� r,,��«i. <br /> Cleanouts <br /> Suflicicnt numbcr of dc�inouts ut stratcgic locations should bc providcd ti�r thc <br /> underground drain line systetns. 'I'hc undereround drain line systems should bc <br /> maintained periodically to prc��cnt clogging. <br /> RISK EVALUATION STATEMENT <br /> 'I�hc si�c is undcrlciin at shallow dcpth by dcnse silty sand and hard tinc stmdy silt soils. <br /> '1'hcsc soils arc of high shcar strcngth in Ihcir nati��c undisturbcd state and havc cxccllcnt <br /> resistancc aL'ainsl slopc tailures. Proprr crosion and drainagc control is kcy to maintain <br /> site stability riuring and altcr complction of construction. It is our judgmcnt that providcd <br /> Ihc rcconuncndations in this rcport arc fully implcmcntcd and obscrvcd d�ring <br /> construction. thc arcas disturbcd by construction activitics ���ill be stabilizcd .nd remain <br /> stable and ���ill not incrcase thc potential far soil movement. It is our opinion that the risk <br /> ol'damagcs to lhc proposcd dcvclopmcnt and (rom Uic dcvclopmcnt to adjaccnt properties <br /> duc to soil instabilih� should bc minimal. <br /> � <br /> LIU & ASSOCIATES, INC. � � � ��� <br /> �/a J <br /> \ . ___._.... <br />