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Bail Bond Business Page 6 of 13 <br /> Our Project Number: LGS080549 <br /> January 13, 2009 <br /> Please see the next section for percolation test results. Generally speaking, sandy soils have <br /> much greater potential for percolation than fine-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 /> One (1) shallow and one (1) deep percolation test were conducted on the Site. <br /> 1.6.3 Boring Preparation and Presaturation <br /> One (1) shallow and one (2) deep soil boring were advanced on the Site with the a hand auger <br /> on December 10, 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 /> 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 /> 1.6.5 Percolation Test Procedure <br /> Percolation tests were conducted for the borings on December 11, 2008 in accordance with the <br /> requirements of the EHD. Two (2) percolation tests with durations of four hour,,( were <br /> performed. The last half an hour of the test was observed by Ted Tasiopoulous, EHD. <br /> Measurement of the water level during the percolation test was from a fixed reference point on <br /> the PVC casing using an electric well sounder with a depth accuracy of 1/100th foot. All <br /> tabulated values on the field data sheet (appendix) are in decimal feet. After water drop was <br /> observed, the holes were checked for refill. The refill level was approximately 0.5 ft (6 inches) <br /> of water above the bottom level of the percolation test hole. The readings were taken every 30 <br /> minutes for a period of four (4) hours. <br /> '44• <br /> 902 Industrial Way•Lodi,CA 95240•209.367.3701 •Fax 209.369.4228 02008 Neil O Anderson&Associates,Inc <br />