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I <br /> L <br /> LFebruary 8,2007 <br /> NOA Project Number: E06161A <br /> Table 1. <br /> San Joaquin County Soil Survey <br /> Selected Soil Properties of On-Site Soils. <br /> Soil Name Depth Unified Soil Classification Salinity Soil Perme- Septic tank <br /> and Map (in) mmhos/cm Reaction ability absorption <br /> Symbol I pH (in/hr) fields <br /> Piper sandy 0-15 Sandy loam;SM <4 7.4-8.4 .6-2.0 Sevcrc: <br /> loam, 15-39 Sandy loam,fine sandy loam; <4 7.4-8.4 .6-2.0 �cctncss <br /> partially SM <br /> ` drained 0- 39-60 Stratified sandy loam to sand; <2 7.4-8.4 2.0-6.0 <br /> 2%slopes, SM <br /> 213 <br /> Shinkee 0-22 Muck;PT <2 7.4-8.4 6.0-20 Severe: <br /> muck, 22-26 Mucky clay loam,mucky silty <2 7.4-8.4 .2-.6 wetness, <br /> partially clay loam;OL,OH peres slowly <br /> drained,0- 26-60 Stratified fine sany loam to <2 7.9-8.4 .2-.6 <br /> 2%slopes, silty clay loam;CL-ML,CL <br /> 247 <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> 5.1 Soil Boring Locations <br /> A total of six groundwater borings and nine percolation test holes were advanced on the site on <br /> December 14,2006. The location of the borings is indicated in Plate 1. <br /> L5.2 Soil Boring Dimensions <br /> LThe soil borings varied in depth,depending on the groundwater level on each parcel,and were four <br /> inches in diameter. See Table 5 for parcel specific percolation test hole depths. <br /> L 5.3 Soil Lithology Observed <br /> 1. Generally, the soil encountered in the borings is similar to the soils reported by the San Joaquin <br /> County Soil Survey for the area (USDA, 1992).Table 2 presents the soil log for the borings. Soil <br /> within all of the borings was similar. <br /> L Soil Table 2. <br /> Boring Log. <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> Medium brown,sandy silt SM <br /> r <br /> 6 <br />