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E <br /> Preparation and Presaturation of Percolation Test Holes <br /> After the boring was advanced by hand auger and the soils logged, the test hole was <br /> completed for the percolation test. Approximately one inch of pea gravel was placed in <br /> the bottom of the open soil boring, followed by a 1.5-inch diameter PVC pipe with <br /> perforations on the bottom: Pea gravel was then used to backfill a few inches of the <br /> annular space. <br /> Live Oak presaturated the percolation test hole approximately 24 hours prior to the <br /> percolation test. The hole was 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 hole was <br /> found to be intact and dry. <br /> Percolation Test Procedure <br /> Live Oak conducted the percolation test for the boring on December 4, 2009. Due <br /> initial percolation rates observed, a four-hour test was required. Water evel <br /> measurements were taken every half-hour during this four-hour period. Ted <br /> Tasiopoulos, Senior Registered Environmental Health Specialist at the San Jo' uin <br /> County Environmental Health Department, observed the last half-hour of the test. <br /> An electronic well sounder with a depth accuracy of 11100th foot was utilized for 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 form is included in Appendix 3 of this report. The form <br /> was signed by Mr. Tasiopoulos and indicates a percolation rate for the hole based on <br /> the final water drop observed. <br /> Per San Joaquin County Environmental Health Department's definition, a shallow <br /> :percolation test hole has a depth between 36 and 42 inches; a satisfactory percolation <br /> rate for a shallow test is less than or equal to 60 minutes per inch (minlin) drop. For the <br /> Site to utilize a standard septic system, one percolation test must demonstrate a <br /> satisfactory percolation rate within the proposed septic system disposal field. <br /> Details and results of the percolation test are summarized in the following table. <br /> LOGE0916 Page 6 <br />