Laserfiche WebLink
Control Board, 2021), it appears that the source of the contamination was never <br />determined, and no delineation of the contaminated area was conducted. <br />On -Site Wells <br />No wells are located on the Site; the future residence will receive municipal water <br />service. One well permit was identified for the Site from among the files of the San <br />Joaquin County Environmental Health Department (Appendix 4). The permit, dated <br />October 1987, was for destruction of a well. <br />Water Sample <br />No water sample was collected as part of this investigation. <br />Soil Profile and Geoloaic Information <br />The Site is depicted on the Preliminary geologic map showing Quaternary deposits of <br />the Lodi quadrangle, California (Marchand and Atwater, 1979). The Site is depicted <br />within a map unit of Holocene alluvium, described as "channel, levee, and floodplain <br />deposits; chiefly silt and clay with fine sand along principal drainageways" (Plate 8). <br />The surface and near surface soils located at the Site are reported by the USDA Web <br />Soil Survey to be composed of Sailboat silt loam (Plate 9) (USDA, 2020). The table <br />below presents some selected properties of this soil: <br />Table 1. Selected Properties of On -Site Soils (USDA, 1992) <br />Soil Name <br />Depth <br />Unified Soil <br />Salinity <br />Soil <br />Perme- <br />Septic tank <br />and Map <br />(in) <br />Classification <br />mmhos/cm <br />Reaction <br />ability <br />absorption <br />Symbol <br />pH <br />(in/hr) <br />fields <br />Sailboat silt <br />0-8: <br />Silt loam; CL -ML, ML <br /><2 <br />6.1-7.3 <br />0.6-2.0 <br />Severe: <br />loam, <br />8-23: <br />Stratified sandy loam to <br /><2 <br />6.6-7.8 <br />0.2-0.6 <br />peres slowly <br />drained, <br />silty clay loam; CL -ML, <br />0-2% <br />CL <br />slopes, <br />23-61: <br />Stratified.sandy clay <br /><2 <br />7.4-8.4 <br />0.2-0.6 <br />234 <br />loam to silty clay loam; <br />CL <br />Note: The table descriptions do not necessarily reflect site-specific soil properties. See description of the map unit for <br />composition and behavior characteristics of the map unit. <br />Soil Borings <br />On June 30, 2021, Live Oak excavated a shallow soil boring near the proposed septic <br />disposal area of the Site for the purpose of conducting a percolation test. The boring <br />was four inches in diameter, 2.17 feet deep, and was excavated by hand auger (Table <br />2). The location of the boring is indicated on Plate 10. <br />LOGE 2135 Page 4 <br />