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Our Project Number: LES090550 Page 3 of 6 <br /> June 30, 2009 <br /> 3.3 Water Sample Location and Constituents <br /> One domestic and agricultural well exists on the site. One well permit was found during a � <br /> recent file review at EHD. A well water sample was taken from the domestic well on June 23, <br /> 2009 by Jessen Welch from the faucet attached to the house. The samples were analyzed for ( J <br /> nitrate and DBCP. The sample for nitrate was collected in a sterile plastic container; the sample <br /> for DBCP was collected in two sterile glass vials. The samples were then transported on ice and <br /> remanded under chain of custody to FGL Environmental, Stockton. The results of these ,G� <br /> analyses are forthcoming. <br /> 4.0 GEOLOGIC AND SOIL PROFILE INFORMATION <br /> The Site is depicted on the California Geologic Survey Map of the Sacramento Quadrangle as <br /> within the Quaternary Modesto Formation Undifferentiated (Qm) and Quaternary Modesto <br /> Formation Uppermember (Qm2). Qm is a unit of undifferentiated alluvial deposits, mainly <br /> arkosic, forming the toe of the Mokelumne alluvial fan, generally covered by 0.3 to 1.0 m of <br /> Holocene intertidal deposits. Qm2 is a unit of Arkosic alluvium forming Mokelumne River <br /> terraces and alluvial fan; chiefly sand with minor gravel and silt; probably glacial outwash. <br /> j (Plate 5, Appendix A). <br /> I The surface and near surface soils located at the Site are reported by the San Joaquin County <br /> Soil Survey to be composed of Boggiano clay loam and Cogna loam 0-2% slopes (Plate 6, <br /> Appendix A) (USDA, 1992). The table below presents some selected properties of these soils: <br /> I <br /> Table 1 <br /> San Joaquin County Soil Survey <br /> Elected Soil Properties of On-Site Soils <br /> Soil Name Depth Salinity Soil Perme- Septic tank <br /> and Map (in) Unified Soil Classification mmhos Reaction ability absorption <br /> Symbol /cm pH (in/hr) fields <br /> 0-23: Clay loam; CL <2 6.6 - 7.8 0.2 - 0.6 <br /> 23-48: Loam, clay loam, silt loam; <2 7.4 - 7.8 0.6 - 2.0 <br /> CL-ML, CL <br /> - Moderate: <br /> 48-60: Cemented; --- <br /> Boggiano, --- --- -- flooding, <br /> 110 18-38: Loam; CL-ML, ML <2 6.1 - 7.3 0.6 - 2.0 cemented pan, <br /> 38-60: Loam, clay loam, silt loam; <2 7.4 - 8.4 0.6 - 2.0 peres slowly. <br /> CL-ML, ML, CL <br /> 25-64: Loam, clay loam, silt loam; <2 7.4 - 8.4 0.6 - 2.0 <br /> CL-ML, CL <br /> Moderate: <br /> Cogna, 129 0-25: Loam; CL-ML, ML <2 6.1 - 7.3 0.6 - 2.0 flooding, <br /> eres slowly. <br /> Note: The table descriptions do not necessarily reflect site-specific soil properties. <br /> * See description of the map unit for composition and behavior characteristics of the map unit <br /> '444 <br /> 9 2 Industrial Way• Lodi,CA 95240.209.367.3701 -Fax 209.369.4228 ©2004 Nei!O.Anderson&Associates.Inc <br />