5302 SOUND AVE 2016-01-01 MF Import

�HSIHllt btUltlHN1�HL ItL�LVG-bLV-byJJ nuy ��7.7u 1�•�H ivu. w� CASCADE GEOTECHNIGAL ING. August S, 1994 Job No. 9407-04G �ravd at a depth of approximately lhra (3) fcet. The native soils observed in MSS NI were a silty sand with gravel. 'll�e fill appears W be a mixture of naflve �oils possibly derived from the originallevdlinQ of the house p�d and imported medium sand or sandy gravel. The DCPT results indicated that all fill was placed in a loose and w►compacud state. Some ]imited zones within the fill have consolldaoed into a medium dense state. The southern portion of the house is foundcd on denu naflve soils. At the north end of the building, the dense native soils are approximately 16 fcet below the existing surface at the Hme of our tield investigation. In the area of the outer deck footings the fill is at least fourtcen (14) fat thick. The fill condnues down the slope at the north end of the building. c�. �. .�� We did not observe any ground water at the dme of our site invesdgadon. Some of the fill was ' moWed possibly indicating that the soils become wet during certain times of the year. A r�wiew of previous geologic mapping, completed by James P. Minard (Disuibudon snd Descdption of Gaologic Units in the Mutdlteo Quadran�le, WashingWn, Department of the Interlor, USGS 1982) indicates that lhe nadve soits in this area are overconsolidate� aand, silt and clay. The wils in the area may also be overconsolidated silty sands with gravel. The nadve bearing soil correlates well with those previously described soils. The unconVolled fill appears W be derived in part from these native soils as well as fzom imported fill. 3