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Soils' Profile Soil types at the Faria Dairy facility and farm area as referenced from the Soil Survey of San Joaquin County, soil panel #26, Escalon Quadrangle: Soil type #193: This soil is approximately 80% of the total soil at the existing site. Name: Madera sandy loam, 0 to 2% slopes. This moderately well drained, nearly level soil is on low terraces. It is moderately deep to a hardpan. Typically, the surface layer is grayish brown and brown sandy loam about 19 inches thick. The upper 4 inches of the subsoil is brown sandy clay loam. The next 6 inches is a claypan of light reddish brown clay. The lower part to a depth of 60 inches is a pale brown and brown, indurated, iron- and silica- cemented hardpan. In some areas the surface layer is fine sandy loam or loam. Included in this unit are small areas of Alamo soils in drainageways, Exeter and Jahant soils in landscape areas. Also included are small areas of Madera soils that have slopes of 2 to 5 percent and areas where depth to the hardpan is as little as 10 inches and most of the soil has been removed, altered, or exposed as a result of deep leveling cuts. Included areas make up about 15 percent of the total acreage. Permeability is very slow in the Madera soil. Available water capacity is low. The shrink-swell potential is high. The effective rooting depth is limited by the hardpan at a depth of 20 to 40 inches. Roots are restricted to cracks and the faces of peds in the claypan, which is at a dept o 10 to 25 inches. Water is briefly perched above the claypan and hardpan after periods of heavy rainfall or irrigation. Runoff is ponded. The hazard of water erosion is slight. The rate of water intake in irrigated areas is 1.5 inches per hour. The main limitations are the complex slopes and the low available water capacity. Because the soil is droughty, applications of irrigation water should be light and frequent. A tillage pan forms easily if the soil is tilled when wet. Returning crop residue to the soil or regularly adding other organic material improves fertility, minimizes crusting, and maintains the rate of water intake. On site for septic tank absorption fields must be increased in size to compensate for very slow permeability. This map unit is in capability unit IVs-3, irrigated and non-irrigated. The Madera soil is in vegetative soil group D.3 Refer to Vegetative Groups, Appendix IXB, for definition. Refer to page 30 for Endnotes and Reference Sources Soil Suitability Study Property Name and Address: Frank Faria Dairy, Inc., 12182 S. Robinson Road, Escalon,CA 95320 Page 7 Western Design/David Avila 2001