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Table 2. Percolation Test Summary <br />Test No., Percolation Test Percolation Rate Test Duration Comments <br />Date Tested Depth (ft.) (minuteslinch) (see notes) <br />P1 -S, <br />2/5/2021 3.49 6.41 4 hr. Satisfactory perc. <br />rate <br />Shallow Test <br />Note: A satisfactory percolation rate for a "shallow" test is greater than 1 but less than or equal to 60 minutes per <br />inch. <br />1 Per San Joaquin County Environmental Health Department, a rate between 5.0 and 30 min/in requires an <br />eight -foot separation between the bottom of dispersal system and ground water, or mitigation by system <br />design or enhancement. <br />Discussion of Percolation Test Results <br />The soils within the proposed sewage disposal area of the Site have demonstrated a <br />satisfactory percolation rate for the use of a standard septic system in accordance with <br />the requirements of the San Joaquin County Environmental Health Department. This <br />percolation test is considered representative of soils within a 100 -foot radius of the test <br />location. <br />Because of the percolation rate between 5.0 and 30 min/in encountered in the shallow <br />test hole, the San Joaquin County Environmental Health Department will require an <br />eight -foot separation from the bottom of the dispersal system to ground water. Ground <br />water is anticipated to be encountered approximately 27 to 33 feet below ground <br />surface at the Site; consequently, no modifications to standard septic systems should <br />be required. <br />Discussion of Septic System Sizing <br />Septic system construction utilizing leach lines or a filter bed should follow the San <br />Joaquin County On -Site Wastewater Treatment Systems Standards (2017) where <br />applicable. <br />LOGE 2103 Page 6 <br />