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March 16, 2006 <br /> NOA Project Number: E06011A <br /> percolation. A percolation test is the best method to determine the suitability of the soils for a septic <br /> disposal area. Please see the next section for percolation test results. Generally speaking, coarser <br /> grained soils have much greater potential for percolation than fine-grained soils. <br /> 6.0 PERCOLATION TEST INFORMATION <br /> 6.1 Percolation Test Locations <br /> A site map indicating the location of the percolation test hole is included as Plate 1 of this report. <br /> 6.2 Number of Percolation Tests <br /> One shallow percolation test was conducted on the Site for a total of one shallow percolation test. <br /> p <br /> 6.3 Boring Preparation and Presaturation <br /> The soil boring was advanced on the Site with a hand augur on February 7, 2006. <br /> A 1.5-inch diameter PVCpith w <br /> e i perforations on the bottom was used to measure the drop of <br /> PP p <br /> water in the percolation test boring. Approximately 2 inches of"pea gravel" were placed in the / <br /> F1' bottom of the open soil boring, then the PVC pipe was installed on top of the gravel. "Pea gravel" / <br /> F—' was used to backfill in the annular space. <br /> Presaturation of the percolation test hole occurred on February 7, 2006. The depth of water used to <br /> pre-soak was 12 inches above the bottom of the boring. <br /> g <br /> J 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 of 1 <br /> testing. <br /> 6.5 Percolation Test Procedure <br /> The percolation test was conducted on February 8,2006 in accordance with the requirements of the <br /> EHD. A percolation test with a duration of four hours was pe �Tasiop <br /> he hole. The final <br /> half hour of the four-hour percolation test was observed by M . Tos,Registered <br /> Environmental Health Specialist, EHD. <br /> F <br /> F1 <br />