Laserfiche WebLink
_ December 6, 2005 <br /> NOA Project Number: E05128A <br /> Page 5 <br /> 4.4 Water Sample Constituents z `j <br /> No water sample was collected or analyzed as part of this investigation. Ls, <br /> 5.0 SOIL PROFILE AND GEOLOGIC INFORMATION <br /> The Site is depicted on the Preliminary Geologic Map of the San Francisco - San Jose Quadrangle, <br /> California (1991),is within a region of Quaternary Fan deposits. The unit is composed of gravel, <br /> sandy silt and clay mixtures (Plate 3). <br /> The surface and near surface soils located at the Site are reported by the San Joaquin County Soil Survey <br /> to be composed of the Capay clay, 0-2% slopes and Capay clay,wet, 0-2% slopes (Plate 4) (USDA, <br /> 1992). Table 3 presents some selected properties of the soils: <br /> Table 2. <br /> San Joaquin County Soil Survey <br /> Selected Soil Properties of On-Site Soils. <br /> Soil Depth Unified Soil Classification Salinity Soil Perme- Septic tank <br /> Name (in) mmhos Reaction ability absorption <br /> and Map /cm pH (in/hr) fields <br /> Symbol <br /> Capay 0-20: Clay: CH,CL <2 6.6- 8.4 0.06- Severe:peres <br /> .r Clay,0-2% 20-60: Clay,silty clay:CL,CH <2 6.6-8.4 0.2 slowly <br /> slopes, 0.06- <br /> 118. 0.2 <br /> Capay 0-20: Clay:CH,CL <4 6.6-8.4 0.06-0.2 Severe:peres <br /> Clay,wet, 20-44: Clay,silty clay:CH,CL <4 6.6-8.4 0.06-0.2 slowly <br /> 0-2% 44-60: Silty clay loam,clay loam: CL <4 6.6-8.4 0.06-0.2 <br /> slo es,121 <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> r.. <br /> 5 <br />