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The Xerofluents are excessively drained, sandy loam to loam surface soils above stratified sandy loam , loam and gravelly sandy loam material. The Zacharias series is similar to the Vernalis series. SOIL CHEMISTRY In general the soil chemistry is suitable for most agricultural uses in San Joaquin County. The pH values are within the acceptable range. Total salt concentrations are within the desired range in all samples with the exception of the subsoil at Site 10. The total salt concentrations in the sample collected below 37 inches is slightly above the acceptable range for salt sensitive crops ( e.g. most fruit and nut trees, grapevines, etc.). The Exchangeable Sodium Percentages (ESP) indicate water penetration problems due to sodium or a sodium toxicity hazard are not likely. The boron concentrations are desirably low in all samples with exception of the surface soil at Site 8. Boron concentrations are at the upper limit of the acceptable range in the topsoil at Site 8. The organic matter content of the tilled surface soils range from 1.4% to 4.9%. This is a wide range, however, most of the soil samples range from 1.4%to 1.7% which will be used as a bench mark for acceptable topsoil organic matter content after stockpiling. The organic matter and nutritional content of the topsoil will be evaluated after stockpiling and replacement. Green manure crops or organic matter will be added, where necessary, to the topsoil after it is replaced. The soil fertility concentrations are typical of permanent crop soils. Row crops, forage crops or _ permanent crops will require fertilizer inputs to maximize yields. The specific fertilization requirements of each field and crop will be addressed during the soil reclamation phase. SOIL CAPABILITY GROUPINGS _ The following is a quote from the Soil Survey of San Joaquin County. California. "Capability grouping shows, in a general way,the suitability of soils for most kinds of field crops. Crops that require special management are excluded. The soils are grouped according to their limitations for field crops,the risk of damage when they are used for crops, and the way they respond to management. The criteria used in grouping the soils do not include major and generally expensive landforming that would change slope, depth,or other characteristics of the soils, nor do they include possible but unlikely reclamation projects." The definitions of the Capability Classes for the existing soil types are as follows: r Class I soils have few limitations that restrict their use. Class II soils have moderate limitations that reduce the choice of plants or that require moderate conservation practices. 6