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*-- <br /> • k KLEINFELDER <br /> i <br /> iwestern, southwestern, southern, and southeastern flanks; and volcanic rocks and <br /> deposits outcrop along the northeastern flanks of the valley. The valley geomorphology <br /> includes dissected uplands, low alluvial plains and fans, river flood plains and channels, <br /> and overflow lands and lake bottoms. The majority of the native sediments near the <br /> site consist of Miocene to Holocene continental rocks and deposits of a heterogeneous <br /> mixture of generally poorly sorted clay, silt, sand, and gravel. Some beds of claystone, <br /> isiltstone, sandstone, and conglomerate are also present. <br /> According to the California Division of Mines and Geology, San Francisco-San Jose <br /> Quadrangle Map No. 5A, 1991, the subject site is underlain by the Pleistocene Modesto <br /> Formation. <br /> 1 <br /> i <br /> 1 <br /> i <br /> Page 4 of 22 <br /> 58671.E02/ST05R1127/DH:ly September 15,2005 <br /> 0 2005 Kleinfelder, Inc. <br />