10730 19TH AVE SE 2018-01-02 MF Import

. W. T. Duryea Company JN 87105 May 29, 1987 Page 2 Test Pit 4 was excavated in the ptoposed pazking area and found four feet of silty gravelly sand fill fzom a glacial till soacce. This was underlain by about one and one-half feet of dazk brown organic silt with roots and wood debris . At a depth of 5.5 feet a reddish brown weathered till or loam soil was observed. This pit was terminated at a depth of eight feet . Test Pit 2 also encountered about two feet of fill �'�` containing large pieces of asphalt and concrete slahs . It ��:'_. :._ ,;� : appears that this'` fill was localized . The topsoil layez has ' been disturbed by previous clearing and giading actions , but appears to be generally 1.5 to 2 feet deep. A reddish brown , medium dense , silty gzavelly sand (weatheted glacial till) was observec� undez the topsoil . Dense glacial till was encountered at a depth of three to fouz feet below the ground surface in the proposed building area . '";�� , The final logs repzesent our interpretations of the field ` logs and the results of the laboratory examination and tests of ,;,` : - ` field samples. The stratification lines on the logs represent the approximate boundary between soil types . In actuality, the �,�-- transition is more gradual . ��.i_-,-�: �il°r��:; GROUNDWATER Gzoundwatez seepage was observed at a depth of 5� 5 feet in Test Pit 1. No seepage was observed in the other test pits . It sho��ld be noted that groundwater levels vary with rainfall and rther factors . We anticipate that groundwater could be found between the neaz surface weathered soil and the underlying glacial till and in more permeable soil layers or pockets within the till soils (fracture zones in silts and clays) . aYs'3` ,.. . 6Y CONCLUSIONS AND RECOMMENDATIONS GENERAL The native soils below the topsoil and fill soils will provide excellent support for the proposed structure. Site preparation work will begin by clearing all existing trees . Then the urganic topsoil and fil; soils should be removed fzom the building area. A stripping depth of one to 1. 5 feet in areas not having fill is anticipated. At the location of Test Pit 2, about 3. 5 feet of soil should be xemoved . We understand GEOTECH CO\SUI.IAV'fS iNC.