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GENERAL GEOLOGIC AND SOIL CONDITIONS <br /> The subject site lies near the center of the San Joaquin Valley, a structural and topographic <br /> basin, which is part of the Great Valley Geomorphic Province of California. This province is <br /> characterized by extensive alluvial deposits from the Sierra Nevada mountain range which <br /> border the Great Valley to the east. The geology of the area consists of broad,coalescing <br /> alluvial plains that have been dissected by streams which drain the Sierra Nevada Mountain <br /> Range. These recent alluvial plains are underlain by older alluvial deposits of Tertiary and <br /> Quaternary age. <br /> The stratigraphic sequence in the Central Valley area consists of apre-Tertiary basement <br /> complex overlain by consolidated continental and marine sediments, Cretaceous of Pliocene in <br /> age, unconsolidated deposits comprise the upper 600 to 800 feet of the stratigraphic sequence <br /> beneath the subject site. <br /> Soils Profile <br /> Based on the exploratory soil boring, soils beneath the site appear to be composed primarily of <br /> Silty Sands with Sand and Gravel at depth. The soils observed in our exploratory soil boring is <br /> typical of young alluvium and flood-basin deposits. <br /> A gmeral description of the soil materials encountered is presented below. <br /> A. Brown-Gray Silty Sand(SM) <br /> This was the surface soil for the entire site. This soil was encountered in the following <br /> boring,at the following depths. <br /> Boring Depth <br /> P-1 0.0' —5.0' <br /> B. Gray Sand and Gravel(SP) <br /> This soil was encountered in the following boring, at the following depths: <br /> B_ onng Dem <br /> P-1 5.0' -25.0' <br /> SEISMICITY <br /> The site is located approximately 30 Kilometers northeast of the Midway-San Joaquin Fault <br /> (2) <br />