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3.4 Descriptions of Structures, Roads, Other Improvements on the Site As described above, the only buildings on the subject property are the house, garage and domestic water well with associated pump house. All structures on the property have been abandoned and have fallen into a state of disrepair(see Photographs in Appendix E). LUSD has fenced and gated the property to deter access. Demolition of the buildings and domestic water well are slated for fall/winter of 2006-2007. 3.5 Current Uses of Adjoining Properties The property to the west approximately 1/4 mile to Davis Road remains agricultural fields. To the east is a small commercial center consisting of approximately 6 warehouse type structures housing a variety of enterprises. To the north is a new residential development built within the past three years. To the south, immediately across Bear Creek and its associated levee is a large residential development built in the late 1970's and 1980's. Similar developments interspersed with agricultural fields exist in the greater area surrounding the Site. 4.0 PHYSICAL SETTING 4.1 Topography The subject property is flat. The EDR Radius Map with GeoChecV (2006) shows the property and surrounding areas to slope five feet to the south over a two mile span. From west to east the area surrounding the site gently rolls with a total elevation gain/loss of 20 feet over two miles. The Site itself lies on an approximately 1/2 mile wide plateau rising above the adjacent areas by five to ten feet. 4.2 Geology The subject property lies with in the Great Valley geomorphic province. The Great Valley is an alluvial plain measuring 400 miles in length and up to 50 miles in width. It receives the drainage from most of the Sierra Nevada and a sizable portion of the Coast Ranges. As the ranges on both sides of the valley rise, the deposits washed down into the valley over millions of years have caused the valley to warp downward, tilting the older strata along its margins. The continental alluvial gravels, sands, silts, and clay deposits in the valley are up to 9,000 feet thick and overlie ancient marine deposits that are as thick as 25,000 feet. 4.3 Soils The soils of the Site are described by the database from the United States Department of Agriculture (USDA) Soil Conservation Service (SCCS) as Jacktone clay. This type of soil has very slow infiltration rates, is typically shallow and drains poorly. 4.4 Groundwater The San Joaquin County Flood Control and Water Conservation Districts Lines of Equal Elevation of Groundwater, Spring 2003 map shows the water level to be approximately 40 feet below ground surface (bgs) and flowing west southwest in the area. Boring logs Phase I Environmental Site Assessment Proposed Podesta Ranch Elementary School December 5,2006 Page 7 of 7