Laserfiche WebLink
percolation test must demonstrate a satisfactory percolation rate within the proposed <br /> septic system disposal field. <br /> 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 /> P-W <br /> 12/13/2018 3.08 4.6 1 hr. Satisfactory perc. <br /> Shallow Test rate <br /> P-E <br /> 12/13/2018 3.05 4.6 1 hr Satisfactory perc. <br /> rate <br /> Shallow Test 1 <br /> Note: A satisfactory percolation rate for a "sh\a low" test is greater than one min/in and less than or equal to 60 <br /> min/in. \ / <br /> 1 Requires 20' separation between bottom o1 sperski system and ground water, or mitigation by system <br /> design or enhancement, per San Joaquin County Environmental Health Department requirements. <br /> Discussion of Percolation Test Results <br /> The soils within the proposed sewage disposal area and one hundred percent <br /> replacement area of the Site have demonstrated satisfactory percolation rates for the <br /> use of a standard septic system in accordance with the requirements of the San <br /> Joaquin County Environmental Health Department. <br /> Because of the percolation rate between 1.0 and 5.0 minutes per inch encountered, the <br /> San Joaquin County Environmental Health Department will require a 20-foot separation' <br /> from the bottom of the dispersal system to ground water (see Table 2). Ground water is <br /> anticipated to be encountered from 29 to 38 feet below ground surface at the Site; <br /> consequently, no modifications to standard septic systems should be required. <br /> Discussion of Septic System Sizing <br /> Septic system construction utilizing leach lines should follow the San Joaquin County <br /> On-Site Wastewater Treatment Systems Standards (2017) where applicable. <br /> LOGE 1846 Page 6 <br />