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5.4 Discussion of soil lithology as related to future onsite septic uses: The <br />Stockton Clay has a permeability that is somewhat poorly well drained. <br />6.0 PERCOLATION TEST INFORMATION SECTION <br />6.1 Site map showing the location, with concise and accurate dimensions of the percolation <br />test holes on the parcel: See Appendix. <br />6.2 The minimum number of shallow and deep percolation tests were performed for each <br />parcel: Three shallow percolation test holes were prepared on the parcel. <br />6.3 Description of the date, time and protocol used to prepare the test hole, including <br />depth and dimensions of hole, preparation of hole, and depth of water used to <br />presoak (minimum 12 inches): The shallow test holes were excavated to a depth of 42 inches <br />and 6 inches in diameter and backfilled with 2 inches of "pea gravel" in accordance with County <br />Standards. The shallow holes were prepared by Brad Handel of Dillon & Murphy on January 21, <br />2022, 2021 at 7:30 a.m. On February 3, 2021 at 7:30 a.m., the 24 hour presoak period was <br />started. The holes were filled with 12 inches of water over the gravel at that time. <br />6.4 Description of the date, time and condition of the test hole after the 24-hour soak <br />period (hole still intact, hole dry, preparation of hole, and depth of water used to presoak <br />(minimum 12 inches): On February 4, 2022 at 7:30 a.m., the shallow test holes were dry. Six <br />inches of water was added to the holes and the holes were deemed suitable to continue. The <br />shallow tests passed the minimum County requirements. <br />6.5 The test conformed to SJC Policy EH 02-02 (correct depth, diameter, 2" gravel, 6" <br />water refill, correct readings recorded). The percolation tests conformed to San Joaquin <br />County Policy EHD 02-02. <br />6.6 Complete Percolation Test Form (including readings) was provided with REHS <br />verification signature. The rate was correctly calculated using the last reading. See <br />Appendix for Test Results Form. <br />Shallow Test(s) <br />TEST HOLE <br />1 (Parcel 1) <br />2 (Parcel 2) <br />3 (Parcel 3) <br />*See Results in Appendix. <br />9 <br />PERCOLATION RATE <br />42 min./in. <br />36 min./in. <br />42 min./in. <br />