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Per San Joaquin County Environmental Health Department's definition, a shallow <br />percolation test hole has a depth between 18 and 42 inches; a satisfactory percolation <br />rate for a shallow test is greater than or equal to 1 minute per inch (min/in) but less than <br />or equal to 60 min/in drop. For the Site to utilize a standard septic system, one <br />percolation test must demonstrate a satisfactory percolation rate within 100 feet of the <br />proposed septic system disposal field. <br />Details and results of the percolation test are summarized in the following table. <br />Table 2. Percolation Test Summary <br />Test No., Percolation Test Percolation Rate Test Duration Comments <br />Date Tested Depth (ft.) (minutes/inch) (see notes) <br />P1, Satisfactory perc. <br />3/3/2022 2.14 12.5 4 hr. <br />Shallow Test rate <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 />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 standard septic systems 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 />Discussion of Septic System Sizing <br />Septic system construction utilizing leach lines and seepage pits should follow the San <br />Joaquin County On -Site Wastewater Treatment Systems Standards (2017) where <br />applicable. <br />LOGE 2203 Page 7 <br />