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lrerracon Soil Suitability / Nitrate Loading Study <br />Azevedo Property Acampo, CA <br />June 19, 2019 Terracon Project No. NA197009 <br />1.5.1 Soil Boring Locations <br />Based on a review of the site plan, the proposed primary and reserve leachfields will be located <br />north of the agricultural building. The percolation test boring (B1) was placed near the anticipated <br />primary and reserve leachfields. Percolation test boring B2 was placed south of the agricultural <br />building as an optional leachfield location. <br />Table 4. <br />Soil Boring Locations. <br />Boring No. Latitude Longitude <br />B1 38.204005 -121.168996 <br />B2 38.203674 -121.169184 <br />Refer to Appendix A, Exhibit 2 for the boring locations. <br />1.5.2 Soil Boring Dimensions <br />Soil borings B1 and B2 were advanced with a drill rig utilizing an 10 inch diameter auger. Boring <br />B1 was advanced to 3.5 feet bgs and boring B2 was advanced 3.9 feet bgs. <br />1.5.3 Soil Lithology Observed <br />The following table presents a log of the soil boring(s). <br />Table 5. <br />Summary of Soil Lithology. <br />Boring Depth Interval <br />(feet) <br />Soil Type <br />Unified Soil <br />Classification <br />B1 <br />0 to 3.0 <br />Poorly graded sand with silt and <br />trace gravel, brown SP-SM <br />3.0 to 3.5 <br />Lean clayey sand with silt, <br />medium grained, brown SC <br />B2 <br />0 to 3.0 <br />Silty sand with fine gravel and <br />trace clay, brown <br />SM <br />3.9 Sandy lean clay with silt, brown CL <br />Responsive Resourceful Reliable 9