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Soil Suitability Study Irerracon <br /> Flag City#4 ■ Lodi, California <br /> February 14, 2019 ® Terracon Project No. NA187043 <br /> permeability can be improved by ripping the hardpan layer which improves the suitability of the <br /> soil for septic absorption fields. <br /> 5.1 Soil Boring Locations <br /> Percolation test boring (B1) and the soil profile boring (B2) are located on the northern portion of <br /> 5484 W. Highway 12 (APN 055-160-23) approximately 100 feet south of the access road. Refer <br /> to Appendix A, Exhibit 2 for the approximately boring locations. <br /> 5.2 Soil Boring Dimensions <br /> Percolation test boring B1 was advanced with a 4 inch diameter hand auger and excavated to a <br /> depth of 3.5 feet bgs. The soil profile boring B2 was additionally advanced with a 4 inch diameter <br /> hand auger and excavated to a depth of 10.0 feet bgs. <br /> 5.3 Soil Lithology Observed <br /> The following table presents a log of the soil boring. <br /> Table 3 <br /> Summary of Soil Lithology. <br /> Boring Depth Interval Soil Type Unified Soil Classification <br /> (feet) <br /> 0.0 to 1.0 Brown,fine to medium, SM <br /> silty sand <br /> Brown,fine to medium <br /> 61 1.0 to 1.5 silty sand,weak SM <br /> cementation <br /> 1.5 to 3.5 Brown,fine to medium SM <br /> silty sand <br /> 0 to 1.0 Brown,fine to medium, SC <br /> clayey sand <br /> 1.0 to 2.5 Brown,fine to medium, SM <br /> silty sand <br /> 2.5 to 5.0 Brown,fine to coarse, SC <br /> clayey sand <br /> B2 Brown,fine to medium, <br /> 5.0 to 7.5 sitly clay with sand CL-ML <br /> Brown,fine to medium <br /> 7.5 to 8.5 silty sand,moderate SM <br /> cementation <br /> 8.5 to 10.0 Brown,fine to medium, SM <br /> silty sand <br /> Responsive■ Resourceful ■ Reliable 9 <br />