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Soil Suitability/ Nitrate Loading Study Irerracon <br /> Betschart Property Lodi, CA <br /> July 19, 2019 Terracon Project No. NA197044 <br /> Soil Soil Septic tank <br /> Name/ Depth USDA Unified Soil Clay Permeability Salinity <br /> Ma in Texture Classification reaction absorption <br /> Map (� ) (%) (in/hour) (mmhos/cm) <br /> Symbol (pH) fields <br /> Fine <br /> 28-42 sandy SC-SM,CL-ML 15-20 0.6-2.0 6.7-7.8 <2 <br /> loam <br /> Fine to <br /> 42-61 coarse SM 8-15 2.0-6.0 6.6-8.4 <2 <br /> sandy <br /> loam <br /> Fine <br /> 0-19 sandy SM 10-15 2.0-6.0 6.1-7.8 <2 <br /> Tokay loam <br /> fine Fine <br /> sand 19-45 sandy SM 10-18 2.0-6.0 6.1-7.8 <2 Slight <br /> loam/ loam 9 <br /> 256 Fine to <br /> coarse <br /> 45-60 sandy SM 8-15 2.0 6.0 6.1-8.4 <2 <br /> loam <br /> 'Selected USDA physical and chemical properties <br /> 2.1.2 Mass Transport Soil Properties <br /> The longer the effluent remains near the surface, the more treatment is enhanced due to natural <br /> processes within the soil. The percolation test has revealed that the clayey sandy soils have a <br /> rapid percolation at shallow depths (<3.5 feet bgs). <br /> 2.2 Groundwater Analysis <br /> 2.2.1 Regional Groundwater <br /> A discussion of regional groundwater, including depth to groundwater is included in Section 1.4.1. <br /> No significant seasonal trends were evident from the sources consulted. <br /> 2.2.2 Potential Ground Water Contamination Issues <br /> A discussion of issues related to potential groundwater contamination is included in Section 1.4.2. <br /> 2.2.3 Current and Future On-Site Ground Water Uses <br /> There are no groundwater wells currently located on the site. A future domestic groundwater <br /> supply well will provide drinking water for the proposed development. <br /> 2.3 Sources and Impact of Nitrate to Groundwater <br /> 2.3.1 Current Off-Site Sources of Nitrate <br /> Responsive ■ Resourceful ■ Reliable 13 <br />