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October 11. 2011 <br /> �-lr. Han�cy Jubic <br /> LRA Job No. 11-OGA <br /> Paec 16 <br /> completrly ��'rapped 'ui uai-«•ovcn fihcr fabric to ��ilhin ubuut 12 inches of finish gtr�de. Tl�e <br /> romaining trenches may be Uuchtilled ��'itl� on-sitc itnpervious soils. \Vater collected hy the <br /> Footii�g draui systcros should be tighdined, separaiely I}um the ruof and surl'uce stonmvater drain <br /> sysrems. to discl�azee uito a ueflrb}'storm sewcr. <br /> Surface llraina};e <br /> W�ter should not be 111o��'ed to stand in any areas �vhere Ibotings, slabs, or pavement is to be <br /> constmeted. Pinish ground surl'ace sl�ould be �raded to flo«� p���a>' iiom tlie new residenoe. Ne <br /> reconmiend the lmish Eround be slopeJ at a gradient oP 3 percent minimum for a dista�ice of ut <br /> letut 10 feet a��ay from dic buildings,esccpt in thc ai�cas ro bc paved. <br /> Cleavouts <br /> Sulficient numbcr of cleanouts ut strntegic localiuns shuuld be provided for the lwdergrowiJ <br /> dr�in line systemti. l�hc widcrground draiu liuc systcn:s sliould be muintained periodically to <br /> pre��ent cloeging. <br /> RISK GVALiJAT10N STATEM1lERT <br /> Thr site i; un�crlain at sl�allo�v dcptli by dense silq� suid und hard tine sandy silt suils. Iltiesc <br /> soils are of high shear slrenglh in their nalive widisturbed statc and lta�e excellent resistunce <br /> aeuinst slope fuilures. Yroper erosiun amd drainage control is key to maintain site staUility. It is <br /> our judgment diat provided tlie rec:onw�eudativns in dtis report ure full�• implcmented and <br /> obsen�ed during construction,the urea5 diswrbed b;• eonstruetion aetivities�vill remain stable mid <br /> ��ill not incrcasc tlie potential for soil movement. It is our upinion that the risk Eor damaecs to <br /> tlie proposed Je�•elopment and t'rom thc decclopmcnt to adjaccnt properties due to soil instubility <br /> should he minimal. <br /> LIU & ASSOCIATES, INC. <br /> / !.. �� � � <br /> � �. <br />