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the MCL at 0.2 parts per billion (ppb, equivalent to ug/L) because it believes that given <br /> present technology and resources, this is the lowest level to which water systems can <br /> reasonably be required to remove this contaminant should it occur in drinking water. <br /> The Maximum Contaminant Level Goal (MCLG) for DBCP is zero. <br /> Soil Profile and Geologic Information <br /> The Site is mapped on the Preliminary geologic map of Cenozoic deposits of the Bellota <br /> quadrangle, California (Marchand and Bartow, 1979). It is depicted within a map unit <br /> identified as Turlock Lake Formation, "arkosic alluvium, probably glacial outwash in <br /> part... chiefly sand with some silt and minor gravel' (Plate 7). <br /> The surface and near surface soils located at the Site are reported by the USDA Web <br /> Soil Survey to be composed of Cometa sandy loam and Montpellier-Cometa complex <br /> (Plate 8) (USDA, 2012). The table below presents some selected properties of these <br /> soils: <br /> Table 1. Selected Properties of On-Site Soil (USDA, 1992) <br /> Soil Name Depth Unified Soil Salinity Soil Perme- Septic tank <br /> and Map (in) Class <br /> Reaction ability absorption <br /> Symbol Classification mmhoslcm pH (in/hr) fields <br /> Cometa 0-22 Sandy loam; SM, SC- <2 5.6-6,5 0.6 - 2.0 Severe: <br /> sandy loam, SM peres slowly <br /> �.. 2-5% 22-36 Sandy clay, clay, clay <2 6.1 - 7.3 <0.06 <br /> slopes, 134 loam, CL, CH <br /> 36-60 Stratified sandy loam to <2 6.6 - 7.3 <0.06 <br /> sandy clay loam; SM, <br /> SC-SM, Sc <br /> Montpellier- 0-20 Coarse sandy loam; SM <2 5.6- 7.3 2.0-6,0 Severe <br /> Cometa 2043 Sandy clay loam; SC <2 5.6 - 7.3 0.2 - 0.6 peres slowly <br /> complex, 43-55 Coarse sandy loam, SM <2 6.6 - 7.3 0,2- 0.6 <br /> 5-8% 55-60 Sandy loam, coarse <2 6.1 - 73 <0.06 <br /> slopes, 200 sandy loam; SM <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 /> Soil Boring <br /> On October 29, 2012, Live Oak excavated one shallow soil boring on the homesite (S 2J <br /> parcel of the Site for the purpose of conducting a percolation test. The boring was four <br /> inches in diameter, 3.15 feet deep, and was excavated by hand auger (Table 2). The <br /> location of the boring is indicated on Plate 9. <br /> LOGE 1221 Page 5 <br />