7200 HARDESON RD 2016-01-01 MF Import

i Y �� � � � 1 SUBSURFACE EXPLORATION AND GEOTECHNICAL ENGINEERING REPORT OVERALL LAl IND9Y SERVICE, INC. PAINE FIELD SITE EVERETT, \1'ASHINGTON 1.0 SUMMARY The proposed project construction is considered feasible with respect to the subsurface conditions encountered at the subject site. A brief summary of the project geotechnical considerations is presented below: o Our subsurface explorations in the proposed project area generally disclosed both uncontrolled and undocumented fill soils oi varied composition above the medium dense to dense native granular soils. Local occurrences of small wood material, construction debris, and topsoil were also present �vithin the fill and are not suit�ble to be included in fili areas under the proposed development foundations. o Shallow spread footing support for the proposed structure is feasible. We recommend an allowable soil bearing pressure of 3,000 pounds per square foot (ps� for footing bearings in the medium dense natural soils or properly compacted structural fiil placed above suitable native soils. Suitable bearing soils are present 7 to 17 or more teet below existing grades at exploration locations in the building areas. We recommend removing existing fill soils and backfilling to grade with structural fill. o The site soils are silty and highly susceptible to disturbance in the presence of water. Construction should be scheduled during drier, warm summer months, if at all possible. Wet weather construction will make the reuse of the onsite silty soils for structural fii! difficult or impossible, and will therefore require strict attention to construction procedures to minimize additional earth work cosis and reduce site disturbance. eu}�:� 1