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minutes of the test were observed by Francisco Garcia Ruiz, Registered Environmental <br />Health Specialist at the San Joaquin County Environmental Health Department. <br />An electronic well sounder with a depth accuracy of 1/100th foot was utilized for the <br />water level measurements. The water level was measured against a fixed reference <br />point on the well casing. Measurements were recorded on the data sheet in decimal <br />feet. When necessary after measuring the water level, the hole was refilled with water <br />to a level of approximately six inches above the bottom of the hole. <br />Percolation Test Results <br />The completed percolation test form is included in Appendix 3 of this report. The form <br />was signed by Mr. Garcia Ruiz and indicates a percolation rate for the hole based on <br />the final water drop observed. <br />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 the proposed <br />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, <br />1/5/2022 2.79 7.8 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 30.0 min/in requires an <br />8 -foot separation between the bottom of dispersal system and ground water, or mitigation by system design <br />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 septic system in accordance with the <br />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 />LOGE 2204 Page 7 <br />