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5.3 Description of soil lithology as noted from test pit by appropriate professional using <br /> industry standard protocol. The Soil in this area is classified as Archerdale Clay Loam, <br /> Cogna Loam, and Hollenback Silty Clay as stated in the Soil Survey of San Joaquin County, as <br /> provided by the United States Department of Agriculture, Soil Conservation Service. <br /> 5.4 Discussion of soil lithology as related to future onsite septic uses: The <br /> Cogna Loam has a permeability that is moderate. The Archerdale Clay Loam and Hollenback <br /> Silty Clay have a permeability that is slow. <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: Two shallow percolation test holes were prepared on the proposed parcels. <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 presoak <br /> (minimum 12 inches): The shallow test holes were excavated to a depth of 42 inches and 10 <br /> inches in diameter and backfilled with 2 inches of "pea gravel" in accordance with County <br /> Standards. The shallow holes were prepared by Mike Toy of Dillon&Murphy on <br /> November 23, 2020 at 7:30 a.m. On November 30, 2020 at 8:30 a.m.,the 24 hour presoak period <br /> was started. The hole was filled with 12 inches of water over the gravel at this time. <br /> 6.4 Description of the date,time and condition of the test hole after the 24-hour soak period <br /> (hole still intact,hole dry,preparation of hole,and depth of water used to presoak(minimum <br /> 12 inches): On December 1, 2020 at 8:30 a.m., the shallow test holes were dry. Six inches of <br /> water was added to the holes and the holes were deemed suitable to continue. The shallow tests <br /> passed the minimum County requirements. <br /> 6.5 The test conformed to SJC Policy EH 02-02 (correct depth,diameter,2" gravel,6"water <br /> refill,correct readings recorded). The percolation tests conformed to San Joaquin County Policy <br /> 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 Appendix <br /> for Test Results Form. <br /> Shallow Test(s) <br /> TEST HOLE PERCOLATION RATE <br /> 1 (Parcel 1) 42 Min/In <br /> 2 (usurveyed remainder) 42 Min/In <br /> *See Results in Appendix. <br /> 3 <br />