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olation Test <br /> Two s allow percolation tests were conducted on the Site; the soil borings discussed <br /> above were used for the percolation test holes (Plate 2). Percolation test procedures <br /> con# rmed to San Joaquin County Environmental Health Department policy. <br /> Preparation and Presaturation of Percolation Test Holes <br /> After the borings were advanced by hand auger and the soils logged, the test holes <br /> were completed for the percolation test. Approximately one inch of pea gravel was <br /> placed in the bottom of each open soil boring, followed by a 1.5-inch diameter PVC pipe <br /> with perforations on the bottom. Pea gravel was then used to backfill a few inches of <br /> the annular space. <br /> Live Oak presaturated the percolation test holes approximately 24 hours prior to the <br /> percolation tests. The holes were filled with water to a height of 12 inches above the <br /> bottom of the boring for the presaturation. On the day of testing, the shallow holes were <br /> found to be intact and dry. <br /> Percolation Test Procedure <br /> Live Oak conducted the percolation t s for the b rings on August 17, 2010. Due to <br /> initial percolation rates observed, ` four-hour est was selected. Water level <br /> measurements were taken every h f-hour d ring this four-hour period. Ted <br /> Tasiopoulos, Senior Registered Environm ealth Specialist San Joaquin <br /> County Environmental Health Department, observed th =utilized <br /> An electronic well sounder with a depth accuracy of= the <br /> water level measurements. The water level was measured against a fixed reference <br /> point on the well casing. Measurements were recorded on the data sheet in decimal <br /> feet. When necessary after measuring the water level, the hole was refilled with water <br /> to a level of six inches above the bottom of the hole. <br /> Percolation Test Results <br /> The completed percolation test forms are included In A13pendix.3 of this report. The <br /> forms were signed by Mr. Tasiopoulos and indicatba percolation rate for the holes <br /> based on the final water drop observed. <br /> Per San Joaquin County Environmental Health Department's definition, a shallow <br /> percolatio s a depth between 3 d 42 inches', a satisfactory percolation <br /> rate for sha low test . less than or equal 60 minutes per inch (min/in) drop. For the <br /> Site to lize a ndard septic system, olation test must demonstrate a <br /> satisfactory percolation rate within the proposed septic system disposal field. <br /> LOGE1018 Page 5 <br />