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Tujunga loamy sand, 0 to 2 percent slopes (Plate 8) (USDA, 2009). The table below presents some selected properties of these soils: Table 1. Selected Properties of On-Site Soils (USDA, 1992) Soil Name Depth Unified Soil Salinity Soil Perme- Septic tank and Map Reaction ability absorption Symbol (in) Classification mmhoslcm pH (in/hr) fields Tokay fine 0-19 Fine sandy loam; SM <2 6.1-7.8 2.0-6.0 Slight sandy loam, 19-45 Fine sandy loam, <2 6.1-7.8 2.0-6.0 0-2 % sandy loam; SM slopes, 45-60 Fine sandy loam, <2 6.1-8.4 2.0-6.0 256 sandy loam, coarse sandy loam; SM Tujunga 0-22 Loamy sand; SW-SM, <2 6.1-7.3 6.0-20 Severe_ loamy sand, SM, SP-SM poor filter 0-2% 22-67 Loamy sand, fine <2 6.1-7.8 6.0-20 slopes, sand, sand; SW-SM, 259 SM, SP-SM Note:The table descriptions do not necessarily reflect site-specific soil properties. See description of the map unit for composition and behavior characteristics of the map unit. Soil Borings On June 24, 2009, LOGE advanced one soil boring on the Site for the purpose of conducting a percolation test. The boring was four inches in diameter and three feet in depth; it was advanced by hand auger. The location of the boring is indicated on Plate 2. The soil in the boring was within the range of what would be anticipated based on the Soil Survey data reviewed. The following table presents the log for the soil boring. Table 2. Soil Log for Ora-Site Borings Depth Soil Description, (USCS) 0-3 ft. Brown silty medium to course sand, loose, (SNI) Discussion of Soil Lithology Based on the soils observed in the boring, there appears to be moderate to good potential for percolation. The soil consisted of silty sand, and sandy soils generally have-a much greater potential for percolation than fine-grained or cemented soils. However, a percolation test is the only accepted method for determining the suitability of LOGE0911 Page 5