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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, each 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 each 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. A deep percolation test hole has a depth between 3.5 and <br />25 feet; a satisfactory percolation rate for a deep test is greater than or equal to 1 min/in <br />but less than or equal to 30 min/in drop. For the Site to utilize a standard septic system, <br />one percolation test hole (shallow or deep) must demonstrate a satisfactory percolation <br />rate within the proposed 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 />P1 -S, <br />9/24/2021 3.24 125 4 hr. Insufficient perc. <br />Shallow Test rate <br />P1 -D, <br />9/24/2021 11.55 11.90 1 hr. Satisfactory perc. <br />Deep 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. A satisfactory percolation rate for a "deep" test is greater than 1 but less than or equal to 30 minutes <br />per inch. <br />Only one percolation test boring (shallow or deep) is required to pass for the property to be approved for a <br />standard septic system. <br />LOGE 2147 Page 7 <br />