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IF I. FJI April 15, 2005 NOA Project Number: E040154A 0 Table 3. San Joaquin County Soil Survey 0 Selected Soil Pro erties of On-Site Soils. Soil Name Depth Unwed Soil Classification Salinity and Map (in,) Soil Perme- Septic tank Symbol mmhos/c Reaction ability absorption in pH (in/hr) fields Madera 0-19: Sandy loam;SM sand loam, <2 5.6-7.3 2.0-6.0 Severe: 19=23: Sandy clay loam;SC <2 6.1 -7.3 0.2-0.6 cemented 0-2% 23-29: Clay,clay loam;CL,CH,SC <2 slopes, 193. 29-60: Indurated 6.6-8.4 <0.06 pan,peres f <2 --- --- slowly. Madera- Madera Alamo 0-10: Sandy loam;SM Severe: com lex, <2 5.6-7.3 2.0-6.0 cemented p 10-20: Clay,clay loam;CL,CH,SC <2 leveled,0- 20-60: Indurated 6.6-8.4 <0.06 pan,peres 1%slopes, <2 --- --- slowly. Fil 195. Alamo 0-12: Sandy loam;SMSevere: 12-25: Clay;CH <2 6.1 - 7.3 0.6-2.0 cemented <2 6.1 -7.8 <0.06 pan, 25-34: Clay;CH <2 34-60: Indurated. 6.6-8.4 <0.06 wetness, :Note:The table descriptions do not necessarily rcflect site-specific soil properties. eres slow! 5.1 Soil Boring.Locations Three soil borings were advanced on the Site. One boring was drilled to a depth of 25 feet, one boring was to a depth of eight and a half feet and the other boring was drilled to a depth of three feet. The soil borings were used later for percolation test holes;'the locations of the borings are Findicated in Plate 1. 5.2 --Soil Boring Dimensions The soil borings were 25, eight and a"half or three feet deep, as noted above, and were four inches in diameter. 65 5.3 -.Soil Lithology Observed Generally, the soil encountered in the boring is.sim.ilar to the soils reported by the San Joaquin County Soil Survey for the area (USDA, 1992). Table 4 presents the soil log for the 25-foot deep soil boring. Conditions were comparable in all borings. t J 6