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Depalma Property Page 5 of 12 Our Project Number: LGS080003 January 31, 2008 5.2 Soil Boring Dimensions The soil borings were approximately three and a half feet, as noted above, and were four (4) inches in diameter. 5.3 Soil Lithology Observed Generally, the soil encountered in the borings is similar to the soils reported by the San Joaquin County Soil Survey for the area (USDA, 1992). The table below presents the soil log for the soil borings. Conditions were comparable in both of the holes. Table 2. Soil Boring Log. Depth Interval (ft) Soil Type Unified Soil C1 ssifiwtion 0-3.25 Medium brown, silty sand— SM i 5.4 Discussion of Soil Lithology - A visual inspection of the soils from on-site drilling indicates good potential for percolation because of the nature of the soils. A percolation test is the best method to determine the suitability of the soils for a septic disposal area. Please see the next section for percolation test results. Generally speaking, coarser-grained soils have much greater potential for percolation than fine-grained or cemented soils. 6.0 PERCOLATION TEST INFORMATION 6.1 Percolation Test Locations / 1 i A site map indicating the locations of the percolation test holes is included as Plate 1 in the appendix of this report. 6.2 Number of Percolation Tests One (1) percolation test was conducted on each parcel for a total of two (2) percolation tests on the Site. 6.3 Boring Preparation and Presaturation Two (2) soil borings were advanced on property with a hand auger on January 28, 2008. A 1.5-inch diameter PVC pipe with perforations on the bottom was used to measure the drop of water in the percolation test boring. Approximately 2 inches of "pea gravel" were placed in the bottom of the open soil boring, then the PVC pipe was installed on top of the gravel. "Pea gravel"was then used to backfill in the annular space. 902 Industrial Way•Lodi,CA 95240-209.367.3701 •Fax 209.369.4228 02008 Nei!O.Anderson&Associates.Inc