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r F1 September 9,'2005 F NOA Project Number: E0511OA. _ Table 2. San Joaquin County Soil Survey _ Selected Soil Properties of On-Site Soils. Soil Name Depth Unified Soil Classification Salinity Soil Perme- Septic tank ..:and Map (in) - mmhos/cm Reaction ability absorption Syfnbol` pH on/hr) fields fj Madera 0-19: Sandy loam;SM <2 5.6-7.3 2.0-6.0 Severe: sandy loam, 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 6.6-8.4 <0.06 pan,peres slopes 193. 29-60i Indurated_ <2 --- slowly. Madera- 0-12 Sandy loam;SM <2 6.1-7.3 .6-2.0 Severe: Alamo 12-25 Clay;CH = <2 6.1-7.8 <.06 cemented complex; 25-34 Clay;CH <2 6.6-8.4 <.06 pan, " leveled,0- 34-60 Indurated --- --- --- wetness, 2%slopes, peres slowly. 195 :- .n - Note:The table descriptions do not necessarily reflect site-specific soil properties. 5.1- Soil Boring Locations.: - A total of two soil borings were.advanced on the Site, one boring to a depth of approximately three. feet.and one boring to a"depth of"around 25"feet. The soil borings were used later for percolation , test holes;the locations4of the borings are indicated in Plate 1. (` 5.2 Soil-Boviing Dim—ensions Fj The soil borings were approximately,three feet and 25 feet deep, 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 x County"Soil"Survey for the area (USDA, 1992). Table 3 presents the soil-log for,the deep soil boring. Conditions were comparable in the shallower hole. F) Table 3. =Soil Boring Lo P-1._.. FjDepth Inierval(ft) Soil Type Unified Soil Classification. 0-5 = 7.6- Light brown,moist,sandy clay CL . 5-10 Brown,moist,silty medium sand with some clay SM aa� EE 10-17Light brown,moist,silty clay CL 17-25 Light brown,moist,sandy clay CL