1988-05-11 Report of Soil Inspection

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Mr Tom Terry 11 May 1968 Page 2 is silty clay, about. 9" in depth (exact thickness difficult to det.erm4,e due to transition). Basal soil appears to be a gray clad oam, becoming lighter in color with depth. ether t . were performed in the central and outer por- tion of garage pad area. Boring 3 is rather represernta- tive of what was found. It indicates the sandy fill, to 2.5" of depth. At this point commences a dart: gray clay loam. a very borderline soil due to its color and the trace of or- ganics. Again. color lightens with depth. being almost brown in color when the boring was terminated at 5'. Three other borings in the area indicated similar results. Groundwater is present. pr-:)bably ,Just below the bottorr: :,f the fill. However. 1 did n,-,t spend enough time on the site to allow water level to stabilise in any bore hole. We recommend that. at least in the vicinity of Boring 1. the organic soil should by ex^avat.ed from below foundation lev- el. The excavation should be oversized 1:1 plus one foot on each side from the edge of footing. This excvation should be "followed out' until it dissipates (tc a condi*ion represen- tative of Boring 3 results) or extends beyond the building pad area oversizing. Compacted fill should rellace the exca- vated soil. We do not recommend extending footings deeper as the subsoil appears somewhat. soft. You need the compacted fill to dissipate foundation loads. When the excavation is completed, it should be inspected to verify conformance with these ret,ommenda,.ions. This can be done by the City building inspector or our associates at In- stant Testing Company. Enclosed is a sheetd,�-t.ailing the limitations of this type of investigation. Particularly note that. the site is not warranted ag.sinst loss cue to soil conditzon!s. ever: if tnese recommendations are followed. Also be advised that we cannot certify the basal soil as having any particular allowable iVl:tlCl.Yl.lvil bearing capacity. ':'his is due to the very limited testing authorized. An inv^ice for c-ur servic-es is. er:clased. Not.Y that. in lig::t. of your assisting me. only tw-j borings. the rines repvrte . are invoiced.