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Cotta Property, Site 4 Page 6 of 10 Our Project Number: LGS080515 May 30, 2008 5.1 Soil Boring Locations A total of nine (9) soil borings were advanced on the Site, one (1) groundwater boring to a depth of approximately five and a half feet (5.5) and eight (8) soil borings to a depth of approximately three and a half feet. The soil borings were used later for percolation test holes; the locations of the borings are indicated in Plate 1. 5.2 Soil Boring Dimensions The soil borings were approximately three and a half (3.5) feet deep, 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 all of the holes. Table 2 Soil Boring Log Depth Interval (ft) Soil Type UniflW Soil Classification 0-5.5 Medium brown, silty sand SM 5.4 Discussion of Soil Lithology A visual inspection of the soils from on-site drilling indicates 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 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) shallow percolation test was conducted on each parcel for a total of eight (8) shallow percolation tests conducted on the property. 902 Industrial Way•Lodi,CA 95240• 209.367.3701 •Fax 209.369.4228 02008 Neil 0.Anderson&Associates,Inc