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LOGE 1103: Van Elderen SSS Addendum Page 2 <br /> December 10, 2012 <br /> Percolation Test Procedure <br /> Live Oak conducted the percolation test for the boring on December 5, 2012. Due to initial <br /> percolation rates observed, a one-hour test was selected. Water level measurements were <br /> taken every ten minutes during this one-hour period. Ted Tasiopoulos, Senior Registered <br /> Environmental Health Specialist at the San Joaquin County Environmental Health Department, <br /> observed the test. <br /> An electronic well sounder with a depth accuracy of 1/100`" foot was utilized for the water level <br /> measurements. The water level was measured against a fixed reference point on the well <br /> casing. Measurements were recorded on the data sheet in decimal feet. When necessary after <br /> measuring the water level, the hole was refilled with water to a level of six inches above the <br /> bottom of the hole. <br /> Percolation Test Results <br /> The completed percolation test form is attached to this letter. The form was signed by Mr. <br /> Tasiopoulos and indicates a percolation rate for the hole based on the final water drop <br /> observed. <br /> Per San Joaquin County Environmental Health Department's definition, a shallow percolation <br /> test hole has a depth between 36 and 42 inches; a satisfactory percolation rate for a shallow <br /> test is less than or equal to 60 minutes per inch (min/in) drop. For the Site to utilize a standard <br /> septic system, one percolation test must demonstrate a satisfactory percolation rate within the <br /> proposed septic system disposal field. <br /> Details and results of the percolation test are summarized in the following table. <br /> Table 1. Percolation Test Summary <br /> Test No., Percolation Percolation Test Duration Comments <br /> Date Tested Test Rate (see note) <br /> Depth (ft.) (minutes/inch) <br /> P2, <br /> 12/5/12 3.35 1.7 1 hr. Satisfactory <br /> Shallow Test perc. rate <br /> Note: A satisfactory percolation rate for a"shallow'test is less than or equal to 60 minutes per inch. <br /> Discussion of Percolation Test Results <br /> The soils within the sewage disposal area of the Site have demonstrated a satisfactory <br /> percolation rate for the use of a standard septic system in accordance with the requirements of <br /> the San Joaquin County Environmental Health Department. <br />