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�.�i Ka1-,,FEu)FR & SATE File No. 5--1147-1.9 <br />July 21, 1972 <br />PAGE THREE <br />of red -brown sandy clay, clayey fine sand, and silty sand <br />to a depth of approximately 16 ,feet. Below that depth, <br />brown silty clay was encountered which extends to the <br />'F <br />depth explored. <br />Df i <br />More detailed descriptions of the soils encountered <br />� <br />in the borings are si,own on the Logs of Borings, Plates III <br />� <br />and IV. The soils have been classified in accordance with <br />the Unified Soil Classification System, which is described: <br />on Plate II. <br />Groundwater <br />Gr6uhdwater was not encountered in either of the <br />borings drilled for this investigation. In addition, no <br />�= <br />seepage or pert groundwater roundwater was observed in either of <br />the -two borings.. It is possible, however, that these <br />groundwater conditions could change in the future due to <br />variations in rainfall, groundwater withdrawal, or other <br />factors not apparent at the time these observations were <br />made. We understand from information obtained from the <br />City of Stockton that the water levels in this area have <br />declined since 1952, varying from depths of about 8.3 feet <br />in 1952, to over 70 feet in 1972. <br />LABORATORY TESTING <br />A Limited number of laboratory tests were performed on <br />samples obtained from the borings to evaluate the density <br />'1 <br />