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n <br />10 <br />®C <br />Lange Property <br />Our Project Number: LGS080011 <br />February 28, 2008 <br />/5.2 Soil Boring Dimensions: <br />Page 6 <br />The soil borings were approximately three and a half feet in depth, as noted above, and were <br />four (4) inches in diameter. <br />5.3 Soil Lithology Observed <br />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). The table below presents the soil log for the soil <br />borings. Conditions were comparable in all borings. <br />Table 2. <br />Soil Boring I <br />Depth Interval (ft) Soil Type Unified Soil Classification <br />0-3.5 Medium brown, clayey silt sM <br />X5.4 Discussion of Soil Lithology <br />A visual inspection of the soils from on-site drilling indicates some potential for percolation <br />because of the nature of the soils. A percolation test is the best method to determine the <br />suitability of the soils for a septic disposal area. Please see the next section for percolation test <br />results. Generally speaking, coarser -grained soils have much greater potential for percolation <br />than fine-grained or cemented soils. <br />1/6.0 PERCOLATION TEST INFORMATION <br />d 6.1 Percolation. Test Locations <br />A site map indicating the locations of the percolation test holes is included as Plate 1 in the <br />appendix of this report. <br />1/6.2 Number of Percolation Tests <br />one (1) shallow percolation test was conducted on each parcel of the property for a total of six <br />(6) percolation tests. <br />x/6.3 Boring Preparation and Presaturation <br />Three (3) shallow soil borings were advanced on the property with a hand auger on January 30, <br />2007, and three (3) shallow soil borings were advanced on the property with a hand auger on <br />February 12, 2008. <br />A 1.5 -inch diameter. PVC pipe with perforations on the bottom was used to measure the drop of <br />water in the percolation test boring. Approximately 2 inches of "pea gravel" were placed in the <br />902 Industrial Way.• Lodi, CA 95240 •209.367.3701 Fax 209.369.4228 82008 Neil O. Anderson & Associates, Inc <br />