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Trans Sohal Logistics—Soil Suitability Section Page 5 of 13 <br /> Our Project Number: LGS140011 <br /> October 8, 2014 <br /> 1.5.1 Soil Boring Locations <br /> A total of two (2) soil borings were advanced on the Site. Depths of borings were 3.2 feet and (S 2) <br /> 24 feet bgs for percolation test locations. The locations of the borings are depicted in Plate 1. <br /> 1.5.2 Soil Boring Dimensions <br /> The soil borings were 3.2 to 24 feet bgs, as noted above, and four (4) inches in diameter. <br /> 1.5.3 Soil Lithology Observed <br /> The table below presents the soil log for the deep soil boring. Conditions were comparable in <br /> the shallower (3.2 feet bgs) hole. <br /> Table 1. <br /> Soil Boring Log. <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-4.0 Clay—dry, dark reddish brown CL <br /> 4.0-18.0 Clayey silt—very fine-grained,dry, ML <br /> brown <br /> 18.0-24.0 Silty sand—fine-grained, dry, SM <br /> yellowish brown <br /> 1.5.4 Discussion of Soil Lithology <br /> A visual inspection of the soils from on-site drilling indicates potential for percolation due to the <br /> sandier portions of the soil profile, at 18 to 24 feet bgs. A percolation test is the best method <br /> to determine the suitability of the soils for a septic disposal area. Please see the next section S `� <br /> for percolation test results. Generally speaking, coarser-grained soils have much greater <br /> potential for percolation than fine-grained or cemented soils. <br /> 1.6 Percolation Test Information <br /> 1.6.1 Percolation Test Locations <br /> A site map indicating the locations of the percolation test holes is included as Plate 1 in i <br /> Appendix A of this report. <br /> 1.6.2 Number of Percolation Tests <br /> Two percolation tests, one shallow at 3.2 feet bgs (P1) and one deep at 24 feet bgs (P2), were <br /> conducted on the project site (all within the proposed septic leach field area). P2 was recorded C� <br /> for county review, which is discussed in more detail below. The two percolation tests were <br /> ©2014 Neil O.Anderson&Associates,Inc. <br /> A Terracon Company <br />