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New Moose Lodge Soil Suitability Study Page 6 of 9 <br /> Our Project Number: E07175A <br /> November 5, 2007 <br /> Table 4. <br /> Soil Boring Log. <br /> Depth Interval (ft) Soil Type Unified Soil Classification <br /> 0-3 Medium brown clay with silt ��CL <br /> 3-6 Medium brown silt with some sand SM <br /> ✓5.4 Discussion of Soil Lithology <br /> A visual inspection of the soils from on-site drilling indicates moderate 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, sandy soils have much greater potential for percolation than fine- <br /> grained or cemented soils. <br /> 6.0 PERCOLATION TEST INFORMATION <br /> 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 /> 6.2 Number of Percolation Tests <br /> One shallow and one deep percolation test were conducted in the proposed septic leach field <br /> area of the Site on October 30, 2007. <br /> 6.3 Boring Preparation and Presaturation <br /> One shallow and one deep soil boring were advanced on the Site with the a hand auger on <br /> October 29, 2007. <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 /> bottom of the open soil boring, then the PVC pipe was installed on top of the gravel. "Pea <br /> Gravel"was then used to backfill in the annular space. <br /> Presaturation of the percolation test holes occurred on October 29, 2007. The depth of water <br /> used to pre-soak was 12 inches above the bottom of the boring. <br /> 6.4 Condition of Borings After Presaturation <br /> After the 24-hour soak period, the presaturated holes were found to be intact and dry on <br /> October 30, 2007. <br /> ,.,44 <br /> 902 Industrial Way•Lodi,CA 95240.209.367.3701 •Fax 209.369.4228 ©2007 Neil O.Anderson&Associates,Inc <br />