Laserfiche WebLink
„ <br /> � � <br /> 1 <br /> . '1 <br /> UAVID L.(VELSON ANO ASSOCIATES,INC. <br /> ConsultingEnLineeringGeology • <br /> ; August 8, 1983 , <br /> Pro3ect No. 3783 <br /> Pag� two <br /> Test pit exploration indicated that the area has teen artificially <br /> filled, and was partially a low lying area where o:ganic ladden <br /> soils accumulated. As shown by the enclosed test pit logs, the <br /> area ie underlain at depth by grey, dense, poorly sorted gravelly <br /> eand, found near grade along the easterly line to approximately � <br /> 11' below grade toward the west line. These basal soils are <br /> overlain by 1' to 2' of brown slightly organic gravelly eands. <br /> Overl,ying the brown gravelly sands is a 2•5� to 4' thick strata of <br /> black-brown organic �ilt/peat, which 'thickens taward the west <br /> and north. This strata was not observed within the easterly line <br /> area, indicating that the original topography was somewhat lower <br /> toward the west than boward the east. Approximately 3' to 6' of <br /> grey, brown and black intermixed silt, sand, gravel, organics and <br /> some rubble (artificial fill) was encountered within the area, <br /> indicating that the area has been subjected to artificial filling <br /> within the past, occurring pramarily within the westerly and <br /> northerly portione of the site area. <br /> Groundwater was encountered in TP-1, TP-2 and TP-3 within the organic <br /> ladden etrata, and along the easterly slope excavation. This <br /> groundwater appears to be perched above the denser basal soils, <br /> derived from upslope. <br /> Conclueions <br /> Based upon testing and observations performed, we believe the <br /> proposed structure placement can be adequately performed, provided <br /> that recommendations as presented herein are utilized £or const- <br /> rvction. <br /> Recommendations <br /> Inasmuch as continuous foundations are proposed within the building <br /> ' areae, natural dense soils are deeper toward the western portion J <br /> of the site than the eastern portion and settlement potential o£ <br /> the organi� l.adden soils are expected to influence structural <br /> support, we suggest optimum support be pf�rformed through constr- <br /> uction of piers placed into the natural 3en�e underlying soils. ' <br /> � <br />