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Watts Winery 1. Page 6 of 14 <br /> Our Project Number: LGS090507 <br /> May 11, 2009 <br /> Table 2. <br /> Soil Boring Log. <br /> Depth Interval (ft) Soil Type Unified Soil Classification <br /> 0-4.65 Medium brown, sandy silt ML <br /> 1.5.4 Discussion of Soil Litholoov <br /> A visual inspection of the soils from on-site drilling indicates potential for percolation because of <br /> the nature of the soils. A percolation test is the best method to determine the suitability of the <br /> soils for a septic disposal area. Please see the next section for percolation test results. <br /> Generally speaking, coarser-grained soils have much greater potential for percolation than fine- <br /> grained or cemented soils. <br /> 1.6 Percolation Test Information <br /> 1.6.1 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 /> Three percolation tests were conducted on the subject property. <br /> 1.6.3 Boring Preparation and Presaturation <br /> Each of the three soil borings was advanced on with a truck-mounted deep rock augur rig, on <br /> March 23, 2009. <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 two (2) inches of "pea gravel' were placed <br /> in the 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 approximately 24 hours prior to the day of <br /> testing. The depth of water used to pre-soak was 12 inches above the bottom of the boring. <br /> 1.6.4 Condition of Borings After Presaturation <br /> After the 24-hour soak period, the presaturated holes were found to be intact and dry on the <br /> day of testing. <br /> 902 Industrial Way•Lodi,CA 95240•209.367.3701 •Fax 209.369.4228 02009 Neil O.Anderson&Associates,Inc <br />