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Soil Suitability/Nitrate Loading Study Irerracon <br /> Schuler Property Tracy, California <br /> May 30, 2019 Terracon Project No. NA197026 <br /> Table 4. <br /> Summary of Soil Lithology. <br /> Boring Depth Interval (feet) Soil Type Unified Soil <br /> Classification <br /> 0.0 to 2.5 Sandy silt, light brown, ML <br /> dry <br /> 61 <br /> 2.5 to 3.5 Silty sand, dark brown, SM <br /> moist <br /> 0 to 2.0 Silty sand, fine grained, SM <br /> light brown, dry <br /> 2.0 to 3.5 Sandy silt, brown, moist ML <br /> 3.5 to 5.0 Silty sand, <br /> light brown, SM <br /> B2 moist <br /> 5.0 to 6.5 Sandy silt, light brown, ML <br /> moist <br /> Lean clay with silt, <br /> 6.5 to 10.0 CL <br /> brown, moist <br /> 1.5.4 Discussion of Soil Lithology <br /> A visual inspection of the shallow silty sandy soils are favorable conditions for shallow septic <br /> disposal areas between approximately 2.0 and 3.5 feet bgs. Generally speaking, coarse-grained <br /> soil has a greater potential for percolation than fine-grained or cemented soil. <br /> Terracon searched the Department of Water Resources online Well Completion Records for <br /> additional information regarding soil lithology within 0.5 miles of the site. The water supply well <br /> was identified nearest the site. <br /> WCR Number Latitude Longitude Depth Approximate Distance/Direction <br /> from Site <br /> WCR2018-003000 37.751746 -121.346974 340 2,000 feet/East <br /> Based on a review of the Well Completion records, there were no boring logs assocated with well. <br /> Refer to Appendix G for copies of the Well Completion records. <br /> Responsive ■ Resourceful ■ Reliable 9 <br />