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Details and results of the percolation testing 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 Satisfactor <br />7/27/2022 2.50 3.1 1 hr. perc. <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 min/in. <br />1 Per San Joaquin County Environmental Health Department, a rate between 1.0 and 5.0 min/in requires a <br />20 -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 in the proposed septic 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. The <br />percolation test is considered representative of soils within an approximate 100 -foot <br />radius of the test location. <br />Because of the percolation rate between 1.0 and 5.0 min/in encountered in the test <br />hole, the San Joaquin County Environmental Health Department will require a 20 -foot <br />separation from the bottom of the dispersal system to ground water, unless mitigated by <br />system design or enhancement. Given the estimated depth to water of 67 to 69 feet, <br />this requirement should not impact any future septic systems to be constructed. <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. No construction is planned at this time. <br />LOGE 2236 Page 7 <br />