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Surface and Subsurface Co ti..Report*APN:207-290-03 & 16*Parcel 141,2, 3,4&Des.Rem. <br /> The soil is moderately deep to a hardpan and is moderately well drained. <br /> Typically the surface layer is grayish-brown sandy loam about 10 inches deep. The upper <br /> part of the subsoil is brown clay aboutl0 inches thick. The lower part to a depth of inches <br /> is a brown and/or pale brown,hard, silica-cemented hardpan. In some areas the surface <br /> layer is fine sandy loam. <br /> Permeability is very slow in the Madera soil. Available water capacity is low. <br /> Water is briefly perched above the claypan and hardpan after periods of heavy rainfall or <br /> irrigation. The hazard of water erosion is slight. The rate of water intake in irrigated areas <br /> is about 1.5 inches per hour. <br /> The main limitations for homesite development are the depth to the very slowly <br /> permeable claypan and hardpan, a high water table, high shrink-swell potential and low <br /> strength in the clayey subsoil. Septic system absorption ability is also highly reduced by <br /> the claypan and hardpan layers. <br /> The characteristics of the two soils to be encountered at various depths below the <br /> ground surface are as follows: <br /> RONCUT SANDY LOAM <br /> Depth Liquid Plasticity Percent Permeability Shrink- <br /> In Inches Material Limit Index Clay (Inches/Hour) Swell <br /> 0" - 21" Sandy Loam 25-35 5 - 15 7- 12 2.0-6.0 Low <br /> 21" -60" Coarse Sandy 40-60 20 - 35 7 - 15 2.0- 6.0 Low <br /> Loam, Sandy <br /> Loam <br /> MADERA–ALAMO COMPLEX <br /> Depth Liquid Plasticity Percent Permeability Shrink- <br /> In Inches Material Limit Index Clay (Inches/Hour) Swell <br /> 0" - 12" Sandy Loam 20-30 NP-5 10-20 0.6-2.0 Low <br /> 12"- 25" Clay 50-65 25 - 35 40 -60 <0.6 High <br /> 25"–34" Clay 50 - 65 25-35 40-60 <0.6 High <br /> 34' –60" Hard -------- — ---- --------- - -- – <br /> DBCP & NITRATE CONCENTRATIONS &UNDERGROUND TANKS DATA <br /> Maps entitled"DBCP and Nitrate–Land Use"available in the Environmental <br /> Health Department's office were consulted and contained the following chemical <br /> concentrations in the area of the subject property: <br /> No DBCP samples were taken in the area of the subject property; so no <br /> concentrations of this chemical have been determined in this area. <br /> Tne I. Tatra Tr -----7Q707 fhnnmc Rnnri -----OA-rinle-----Cnlifnrnin 0"161 R <br />