SU0006222_SSNL - Laserfiche WebLink

Home Browse Search

(_ June 27, 2005 NOA Project Number: E05087A The surface and near surface soils located at the Site are reported by the San Joaquin County Soil Survey to be composed of Acampo sandy loath, 0-2 % slopes and Tujunga loamy sand 0-2% slopes (Plate 8) (USDA, 1992). Table 3 presents some selected properties of these soils: Table 3. San Joaquin County Soil Survey Selected Soil Properties of On-Site Soils. �{ Soil Name Depth Unified Soil Classification Salinity Soil Perme- Septic tank l and Map (in) mmhos/cm Reaction ability absorption Symbol pH (in/hr) fields Acampo 0-19: Sandy loam;SM <2 6.1 -7.8 2.0-6.0 Fair: sandy loam, 19-47: Sandy loam,fine sandy loam, <2 6.6-8.4 2.0-6.0 cemented 0-2% corse sandy loam;SM pan,thin slopes,101. 47-49: Indurated --- --- --- layer. ! 49-60: Cemented F Tujunga 0-22: Loamy sand;SW-SM,SM,SP- <2 6.1 -7.3 6.0-20 Sever:poor f loamy sand SM filter. k 0-2% 22-67: Loamy sand,fine sand,sand; <2 6.1 -7.8 6.0-20 slopes,259. 1 SW-SM,SM,SP-SM F11 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 to a depth of about three and a half feet on the Site. The soil borings were later used for the percolation test holes; the locations of the borings are indicated in Plate 1. 5.2 Soil Boring Dimensions The soil borings were three and a half feet, as noted above, and were four inches in diameter. 5.3 Soil Lithology Observed Generali the soil encountered in the boring is s' y, g similar to the sods reported by the San Joaquin County Soil Survey for the area (USDA, 1992). Table 5 presents the soil log for the two borings. Table 5. Soil Boring Log. PDepth Interval(ft) Soil Type Unified Soil Classification 0 0-3 Medium brown,moist,sil fine to medium sand SM tW± 7