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05 May 2015 AGE Project No. 14-3119 Page 3 of 7 metamorphic and igneous origins. Northern and southern portions of the Great Valley Province have been designated the Sacramento and San Joaquin Valleys, respectively. The subject property is located within the San Joaquin Valley. The property is further located within the San Joaquin Valley Groundwater Basin, Tracy Subbasin (5-22.15). The Tracy Subbasin is defined by the areal extent of unconsolidated to semiconsolidated sedimentary deposits that are bounded by the Diablo Range on the west; the Mokelumne and San Joaquin Rivers on the north; the San Joaquin River to the east; and the San Joaquin-Stanislaus County line on the south. The Tracy Subbasin is located adjacent to the Eastern San Joaquin Subbasin on the east and the Delta-Mendota Subbasin on the south. All of the above mentioned subbasins are located within the larger San Joaquin Valley Groundwater Basin. The Tracy Subbasin also lies to the south of the Sacramento Valley Groundwater Basin, Solano Subbasin. The Tracy Subbasin is drained by the San Joaquin River and one of its major westside tributaries; Corral Hollow Creek. The San Joaquin River flows northward into the Sacramento and San Joaquin Delta and discharges into the San Francisco Bay. Estimated depth to groundwater beneath the property is between approximately 30 feet and 40 feet below surface grade (bsg), based on the map titled Lines of Equal Depth to Groundwater Fall 2012 published by the San Joaquin County Flood Control District and Water Conservation District (FCD&WCD). It is inferred from the map titled Lines of Equal Elevation of Groundwater Fall 2012, also published by the FCD&WCD, local groundwater flow is northeasterly towards the San Joaquin River beneath the subject property. Topography The property is located at an elevation of 63 feet above mean sea level (MSL) and in an area of low topographic relief. Regional slope of the area is toward the general east-northeast. Surface EDR provides a report listing dominant soil composition in the general Soils area of the subject property based on information from the United States Department of Agriculture's Soil Conservation Service STATSGO (State Soil Geographic Database) soil maps. Soil surface texture is listed as CAPAY soil, a moderately well-drained clay, in the Class D Hydrogeologic Group which includes very slow infiltration rates. Corrosion potential of this soil for uncoated steel is high. Surface There are no surface water features on the subject property. The Advanced GeoEnvironmental,Inc.