1980-07-28 Soil Boring Report - Laserfiche WebLink

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GEC .?525 - Page 3 Groundwater The groundwater table was not encountered in the borings. However, the 61,' - 8' sample in boring -2 did appear questionable with respect to water - bearing characteristics. Refer to the attached sheet for general informa- tion regarding groundwater conditions and observations. DESIGN 1 IFOR,MAT 10% We understand that the proposed residence: 1) will be located approximately in the arra of the test borings; ?) will be one or two stories in height; 3) will not have a basement, with the lowest floor level at approximately 1' - 2' above present grade; 4) will have the finished grade outside at approximately the present or slightly above the present grade; 5) will have normal tolerance to settlement; 6) will be of conventional design and con- struction; and 7) will be constructed in accordance with applicable build- ing code requirements. Deviations arum the above design information could necessitate altering our conclusions and recommendations. DISCUSSION, CONLLU510NS._AND RECOF4iEN0AT10NS Based on the results of borings, it is our opinion that the basal soils are suitable for slab -on -grade, spread footing type construction. A design bearing pressure of up to 1500 psf is recommended for footings constructed on the basal soils. All surficial soils and other vegetative material should be removed from below the proposed building. Any till placed below the proposed building should be: 1) oversized on a 1:1 ratio outward and downward beyond the top of proposed rootings; 2) inorganic and uniformly compacted to at least 95': of maximum standard Proctor density. Because of the depth of surficial soils in boring +2, consideration should be given to constructing a basement below the proposed residence. By utili- zing a basement, the volume of earthwork would be reduced. GEC