4818 BELVEDERE AVE 2016-01-01 MF Import

Novembcr 9, 2006 Single-Family Rcsidencc - [3clvcdcrc Lot 4 I.&A Job No. 6A 149 1'agc 4 and mny loosen up and slough to its anglc of rcpose when cx�sed on slopes or man-madc cuts with peor vegetation cover. The I:sperance Sand soils ure ��uite pertneable und would allow stormwatcr to sccp through easily. Uuring wnstruction inspection of the building (ootprint excavation for the residenccs on the adjacent Belvederc Lots 32 and 33, we obscrved a layer of weathered soils of loose to mediutn- densc, tine to medium sand to alwut 3 to 4 feet deep maniiing those lots. This loose to medium- dense, weathercd sand laycr was underinin by u fmsh Bsperance Sund deposit of dense ro very- dense, fine to course sand with a trace of grnvel. Vertical cuts in the weathercd and fresh Esperunce Sand soils on the adjaccnt Lots 32 and 33 had rcmained stable for months. We nnticipate the subject lot wiU be undcrlain by similar I:sperance Sand soils us encoumercd under thc ndjacenl Lots 32 und 33. GROUNDWATER CONDITION [3uilding footprint excavation on adjacent Lots 32 and 33 up to 20 feet decp hu:i not encountered groundwater Thc f'sperauce Sand soils are of high permenbility, and would allow stortnwnter to secp through easily. It is our opinion lhat groundwatcr ut the subject lot will be at such depth that it should have IitUe impact on the construction work of lhe proposed residence on Ihe subject lol. Dlti('lItiS10Nti ANU RF,COMMF.NDATIONti GENF.R.41. [3ased on ihr suil cunditions cncountcrcd f}am our subsurfacc cxplorations, it is our opinian thal thc subject lot is suitnble for thc proposcd residence Gom a gcotechnical engineering viewpoint. l�hc surticial topsoil aad loose weathered Gsperance Sand soils should be completely strippeJ within the building pad and drivewa�� and in othcr arcas where the subgrade soils arc to support traf7ic or strucWral loads. 7�he underlVing Jense to very dense, frcsh, Espernnce Sand soils ure of modcratcly-high to high shcar strcngth, mid arc capable of providing adequate foundation LIU & ASSOCIATES, INC.