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--- - KLEINFELDER <br /> TABLE 3 <br /> REGIONAL GEOLOGY AND HYDROGEOLOGY <br /> The site is located in the Great Valley Geographic Province in <br /> Central California. This province was formed by the filling of a <br /> large structural trough or downwarp of the underlying bedrock. <br /> REGIONAL The trough is situated between the Sierra Nevada Mountains <br /> GEOMORPHIC on the east and the Coast and Cascade Ranges on the west. <br /> PROVINCE The trough, which underlies the valley, is asymmetrical with <br /> the greatest depth of sediments along the eastern margin. <br /> The sediments that fill the trough originated as erosional debris <br /> from the adjacent mountains and foothills. <br /> According to the San Joaquin County Flood Control and Water <br /> Conservation District (SJCFCWCD) Lines of Equal Depth to <br /> Groundwater, Spring 1999 and Lines of Equal Elevation Map, <br /> DEPTH TO Spring 2003, depth to water in the site area is approximately <br /> REGIONAL 45 feet below grade with a flow direction to the southeast <br /> GROUNDWATER towards an apparent pumping depression. Groundwater depth <br /> and flow direction may be influenced by local pumping, rainfall, <br /> and irrigation patterns. Evaluation of such factors is beyond <br /> the scope of this workplan. <br /> 57252.T02/ST05R999/DH:ly Page 8 of 29 <br /> ©2005 Kleinfelder, Inc. September 1,2005 <br />