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Mr. Steven Malcoun <br /> December 9,2003 <br /> Page 8 <br /> County Soil Survey soil for the area(USDA, 1992). Table 4 presents the soil log for the 14.5- <br /> foot deep soil boring. <br /> Table 4. <br /> Soil Boring Log P-1 <br /> (Typical of both locations) <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-4.5 Dark brown silty sand SP <br /> 4.5-11 Dark gray to black fat clay CH <br /> I1-15 Brown fat clay CH <br /> 15-18 Brown lean clay CL <br /> 18-20 Dark gray lean clay with fine sand CL <br /> L <br /> 20-24 Brown lean clay CL <br /> 24-25 Brown silty sand SP <br /> Note:Descriptions are representative both boring locations. <br /> Percolation rate is the best measure of septic system applicability. Based on the percolation rate <br /> of the shallow soil zone—described later in the report—, the shallow soil zone has demonstrated <br /> satisfactory percolation rate according to the San Joaquin County Environmental Health <br /> Department. One of the two deep percolation tests also demonstrated a satisfactory percolation <br /> 6. rate. The utilization of seepage pits in conjunction with shallow leach lines would maximize the <br /> percolation potential of the area tested. <br /> Since the shallow percolation tests on both parcels achieved a satisfactory percolation rate, the <br /> Site has met the EHD requirement for a satisfactory percolation rate. Construction of the septic <br /> system should follow the requirements of the EHD Sewage Standards. <br /> 6.0 PERCOLATION TEST INFORMATION <br /> r 6.1 Percolation Test Boring Locations <br /> A"shallow"and"deep"percolation test was performed on each of the proposed parcels in a <br /> .. location designated for a sewage disposal system. Please refer to the scaled site plan for the <br /> exact locations (Plate 1). <br /> t_ <br /> 67, <br />