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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 Satisfactory perc. <br /> 4/27/2023 1.81 25.0 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 min/in. <br /> 1 Per San Joaquin County Environmental Health Department, a rate between 5.0 and 30 min/in requires an 8- <br /> foot separation between the bottom of dispersal system and ground water, or mitigation by system design or <br /> enhancement. <br /> Discussion of Percolation Test Results <br /> The soils near 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 5.0 and 30 min/in encountered in the test hole, <br /> the San Joaquin County Environmental Health Department will require an 8-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 85 to 95 feet, no <br /> modification to standard systems should be necessary to comply with this requirement. <br /> Discussion of Septic System Sizing <br /> Septic system construction should follow the San Joaquin County On-Site Wastewater <br /> Treatment Systems Standards(2017)where applicable. In this area, most systems utilize <br /> leach lines with 25-foot deep seepage pits. <br /> LOGE 2312 Page 7 <br />