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i <br /> 1.6 Percolation Test Information <br /> 1.6.1 Percolation Test Locations <br /> A site map indicating the location of the percolation test hole is included as Plate 1 in the <br /> appendix of this report. <br /> a <br /> j 1.6.2 Number of Percolation Tests <br /> One (1) shallow percolation test was conducted on December 15, 2008 on the subject property. <br /> 1.6.3 Boring Preparation and Presaturation <br /> One (1) shallow soil boring was advanced on the subject property to a depth of three and a half <br /> (3.5) feet with a hand auger on December 14, 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 hole 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 hole was found to be intact and dry on the day <br /> of testing. <br /> 1.6.5 Percolation Test Procedure <br /> A percolation test was conducted for the boring on December 15, 2008 in accordance with the <br /> requirements of the EHD. A percolation test with duration of one (1) hour was performed for <br /> the test. The last ten (10) minutes of the test was observed by Ted Tasiopoulous, EHD. <br /> n <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 <br /> ten (10) minutes for a period of one (1) hour. <br /> 1.6.6 Percolation Test Forms and Results <br /> The completed percolation test form is included in the appendix of this report. <br /> 902 Industrial Way-Lodi,CA 95240.209.367.3701 -Fax 209.369.4228 02008 Neil Q.Anderson&Associates,Inc <br /> I <br />