4818 BELVEDERE AVE 2016-01-01 MF Import

Novembcr 9, 200G Singlc-Family Residence - I3elvedcrc Lol 4 L&A 1ob No. GA 149 Pagc 6 Jownspouts and with catch basins installed in paved drivewuys. The collected water should be tightlined to discharge into a stortn sewer or u suituble s!ortnwater disposal facility. Spoil soils and yard�vastc should not bc dis�wscd of onto the stecp slope within the lot. Seismic Hazard The Puget Sound region is in an active seismic zone. "Ihe subject lot is underlain at shallow depth by densr, to very-dense Gsperancc SunJ soils of moderately-high to high shear strength. Also, therc is a lack of extensive, stutic groundwater table ut shallow depth under the lot. 'Therefore, the potential for scismic hazards, such as deep-seated landslides, liquefsction, lateral soil spreading, to occur on the lot should be minimal. The residence to be consWcted on the lot, however, should be dcsigned for seismic forces induced by strong earthquakes. Based on the soil conditions encountered by the tcst pits, it is our opinion that Seismic Use Group [ and Site Clnss U should be used in the seismic design of the prn�sed residences in accordnnce with the 2003 Intcrnational I3uilding Codc (16C). SITF. PRF.PAItAT10N ANU GENF.RAL GRADING Sitc preparation should includc cicaring and grubbing within construction limits. Topsoil nnd loose wcathercd soils should be completcly stripped within building pad and drivewflys. This may reyuire over-excavation up to about 4 tccl in somc ureas of thc lot. The exposed surface shoulJ he compacted to a non-yielJing stale wiAi a vibrutory roller compactor and proof-rolled with the carthwork eyuipmcnt o�xrated on site. "I�e on-sitc surlici�l soils conlain a fair percentagc of fines and ure sensitive to moisture. A layer of �Jean yuarry spalls should be pluced over excavuted ureas und areas of Gequent traffic, as reyuin:d, to pmlect the suhgradc soils liom disturbauce by construction tra�c. Silt fences should be erected along the Jownhill boundazics of the site to prevent sedimcnts being transported by LIU & ASSOCIATES, INC.