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00-3737 3.2.2 Soil Paragon observed Site soils beneath asphalt paving to consist of several inches of brown silty sand underlain by dark gray, plastic (malleable) silt to a depth of four feet. This material may be fill, as it contains brick fragments at boring location P- 4. We encountered brown sand with varying amounts of silt beneath this layer to the maximum depth we advanced borings (16.5 feet). Appendix C (Boring Logs) includes detailed subsurface soil descriptions. 3.3 Hydrology 3.3. 1 Surface Water Paragon did not observe any surface water at the Site. We did observe a man- made pond within the Lakeview Village residential complex located across Shoreline Drive from the Site. The closest point of this pond is approximately 90 feet south of the Site. The Site is in the San Joaquin River Drainage Basin of the Central Valley Drainage System. According to the USGS topographic map, an extension of Mosher Slough is located approximately 700 feet (0.13 miles) west of the Site, and Fivemile Slough is located within 2,000 feet (0.39 miles) south of the Site. Surface runoff would be to the south, towards a man-made pond located across Shoreline Drive if unimpeded. A system of shallow concrete drainage ditches and stormwater catchbasins collects runoff from paved portions of The Landing Shopping Center. 3.3.2 Groundwater Flow Direction Based upon topography and direction of nearby surface waterbodies, Paragon inferred that Site groundwater flows generally southerly, towards the man-made pond across Shoreline Drive. Paragon obtained groundwater elevation data and performed a stadia survey of monitoring well locations and wellhead elevations on August 3, 2000. Table 2 on the following page summarizes these data; see Figure 5 for an illustration of groundwater elevations and 0.01-foot contours. 3422 West Hammer Lane,Stockton, California —6—