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F11 F, 18&1 K1200 Depth Unified Soil Classification Salinity Soil Perme- Septic tank ,404"ec t Min�hb r: E05034A mmhos/cm Reaction ability absorption Symbol pH (in/hr) fields �y San Joaquin 0-16: Loam;CL-Nff-,ML <2 5.6-6.5 0.6-2.0 Severe: loam,0-2% 16-26: Clay loam,clay;CL <2 6.1 -7.8 <0.06 cemented slopes,238. 26-60: Indurated --- --- --- pan,peres Fj slowly San Joaquin 0-12: Loam;CL-ML,ML <2 5.6-6.5 0.6-2.0 Severe: loam,thick 12-26: Sandy clay loam;SC <2 6.1 -7.3 0.2-0.6 cemented surface, 26-35: Clay loam,clay;CL <2 6.1 -7.8 <0.06 pan,peres 0-2% 35-60: Indurated --- --- --- slowly slopes,240. Tokay fine 0-19: Fine sandy loam;SM <2 6.1 -7.8 2.0-6.0 Slight sandy loam, 19-45: Fine sandy loam,sandy loam; <2 6.1 -7.8 2.0-6.0 0-2% SM slopes,256. 45-60: Fine sandy loam,sandy loam, <2 6.1 - 8.4 2.0-6.0 corse sandy loam;SM /Note:The table descriptions do not necessarily reflect site-specific soil properties. y 5.1 Soil Boring Locations A total of eight soil borings were advanced to a depth on the Site. Four borings were drilled to a depth of three and half feet and four borings were drilled to a depth of about 25 feet. The soil borings were later used for the percolation test holes; the locations of the borings are indicated in F1 Plate 1. 5.2 Soil Boring Dimensions F! The soil borings were three and a half feet or 25 feet deep, as noted above, and were four inches in diameter. 5.3 Soil Lithology Observed Generally, the soil encountered in the boring is similar to the soils reported by the San Joaquin County Soil Survey for the area (USDA, 1992). Table 5 presents a representative soil log for the deep soil borings. Conditions were comparable in all holes shallow and deep. Table%5. Soil Boring Log. RDepth Interval(ft) Soil Type Unified Soil Classification 0-3 Dark brown-red,slightly moist,silty fine to SM medium sand with clay 3-4 Dark brown-red,slightly moist,silty fine to SM medium sand with clay (slightly cemented) 8 Fill