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18340 E Rodeo Drive Project No.2018-00037 Page 13 <br /> portion of the parcel and Montpellier-Cometa complex, 5-8% slopes on the southern <br /> one-third portion of the site. (Plate 4,Appendix A). <br /> Table 1 <br /> San Joaquin County Soil Survey <br /> Elected Soil Properties of On-Site Soils <br /> Soil Name Soil Perme- Septic tank <br /> and Map Depth Unified Soil Classification Salinity Reaction ability absorption <br /> Symbol (in) mmhos/cm pH (in/hr) fields <br /> 0-22: Sandy loam; SM,SC-SM <2 5.6-6.5 0.6- 2.0 <br /> 22-36: Sandy clay,Clay,Clay loam; <2 <br /> Cometa CL,CH Severe; eres <br /> sandy loam 6.1 - 7.3 < 0.06 p <br /> 134 slowly <br /> Stratified Sandy loam, <br /> 36-60: Sandy clay loam; SM,SC- <2 6.6-7.3 <0.06 <br /> SM, SC <br /> 0-20: Coarse sandy loam; SM <2 5.6-7.3 2.0-6.0 <br /> Montpellier- 20-43: Sandy clay loam; SC <2 5.6-7.3 0.2-0.6 <br /> Cometa Severe;peres <br /> Complex slowly <br /> 200 43-55: Coarse sandy loam; SM <2 6.6- 7.3 0.2 -0.6 <br /> 55-60: Sandy loam,Coarse sandy <2 6.1 -7.3 < 0.06 <br /> loam; SM <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> 2.2 Mass Transport Soil Properties <br /> Layered soils and sediments, such as the sandy loam and sandy clay loam soil layers of the <br /> Cometa and Montpellier-Cometa at the site typically provide a high to moderate degree of <br /> protection between percolating effluent at the surface and ground water aquifers. Soils of <br /> this type typically present a low to moderate risk of excessive mass transport of nitrate or <br /> other constituents of concern. <br /> Petralogix Engineering,Inc. <br /> 26675 Bruella Road,Galt Ca 95632 <br /> (209)-400-5729 <br /> www.petraloglx.com <br />