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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 mmhos/cm pH (in/hr) fields Bruella 0-18: Sandy loam; SC-SM, <2 6.1 - 7.3 2.0 - 6.0 Severe: sandy loam, SM peres slowly 0-2 % 18-31: Sandy clay loam, sandy <2 6.1 - 7.3 0.2 - 0.6 slopes, 111 loam; SC 31-67: Sandy clay loam, clay <2 6.1 - 7.3 0.2 - 0.6 loam; SC, CL Bruella 0-8: Sandy loam; SC-SM, <2 6.1 - 7.3 2.0 -6.0 Severe: sandy loam, SM peres slowly hard 8-42: Sandy loam, sandy clay <2 6.1 - 7.3 0.2 - 0.6 substratum, loam; SC 0-2 % 42-60: Sandy clay loam, sandy <2 6.1 - 7.3 0.06 - 0.2 slopes, 112 clay; SC 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 In May through June of 2019, Live Oak excavated shallow and deep soil borings in the proposed septic disposal area of the Site for the purpose of conducting a percolation test. The borings were four inches in diameter, 3.39 and 18.86 feet deep, and were excavated by hand auger (Table 2). The location of the borings is indicated on Plate 13. The soil in the boring was similar to that described by the Soil Survey. Sandy clay was encountered to a depth of approximately two feet, followed by cementeTsandy_clay to the full depth of the holes. The soil log is presented on Plate 14. Discussion of Soil Lithology Based on the soil observed in the borings, there appears to be limited potential for percolation in the shallow and deep soil zones. 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 the soils for a septic disposal area. Percolation test results are discussed in the following section. LOGE 1850 Page 6