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Bail Bond Business Page 4 of 13 <br /> Our Project Number: LG5080549 <br /> January 13, 2009 <br /> 1.4.2 Potential Ground Water Contamination Issues <br /> Identifying potential ground-water contamination sources was not part of the scope of work for <br /> the soil suitability study. Potential ground-water contamination can occur from a number of <br /> sources which often include leaky underground storage tanks, agricultural activities, dairies, <br /> septic systems, and storm water infiltration. Agricultural activities and the use of septic systems <br /> in the area should be considered potential ground-water contamination sources. <br /> 1.4.3 Water-Sample Location <br /> There was now II on the Site. No water sample was taken. . <br /> 1.5 Soil Profile and Geologic Information <br /> The Site is depicted on the California Geologic Survey Map of the San Francisco-San Jose <br /> Quadrangle as within the (Qm) Quaternary Modesto Formation (Plate 5). The Quaternary <br /> Modesto Formation (undifferentiated) is unit of undifferentiated alluvial deposits, mainly arkosic, <br /> forming the toe of the Mokelumne alluvial fan, generally covered by 0.3 to 1.0 m of Holocene <br /> intertidal deposits. <br /> The surface and near surface soils located at the Site are reported by the San Joaquin County <br /> Soil Survey to be composed of (196) Manteca fine sandy loam, 0-2% slopes and (266) Veritas <br /> fine sandy loam, 0-2% slopes (Plate 6) (USDA, 1992). The table below presents some selected <br /> properties of these soils: <br /> Table 1. <br /> San 3oaquin County Soil Survey <br /> Elected Soil Properties of On-Site Soils. <br /> Soil Name Unified Soil Salinity Soil Perme- Septic <br /> tank <br /> and Map Depth (in) mmhos Reaction ability <br /> Symbol Classification /cm pH (in/hr) absorption <br /> fields <br /> Honcut 0-21 Sandy loam; SM <2 6.1-7.3 2.0-6.0 Slight <br /> 175 21-60 Coarse sandy loam; SM <2 6.1-7.8 2.0-6.0 <br /> Manteca 0-11 Fine sandy loam; SM <2 7.4-8.4 2.0-6.0 Severe: <br /> fine sandy 11-24 Sine sandy loam, loam, <2 7.4-8.4 0.6-2.0 cemented <br /> loam, 0-2 sandy loam; SM, SC-SM pan <br /> % slopes, 24-35 Indurated <2 --- --- <br /> 196 35-54 Cemented <2 --- --- <br /> 54-74 Stratified loamy sand to <2 7.4-8.4 2.0-6.0 <br /> loam; SM <br /> 902 Industrial Way•Lodi,CA 95240•209.367.3701 • Fax 209.369.4228 02008 Neil O.Anderson&Associates,Inc <br />