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• Class VIII soils and miscellaneous areas have limitations that nearly preclude their use for commercial crop production. • Capability subclasses are soil groups within one class. They are designated by adding a small letter, e, w, s, or c, to the class numeral (for example, Ile). • "e" shows that the main hazard is the risk of erosion unless close growing plant cover is maintained. • "v✓' shows that water in or on the soil interferes with pant growth or cultivation. • "s" shows that the soil is limited mainly because it is shallow, droughty, or stony. • "c" shows that the chief limitation is climate that is very cold or very dry. SOIL TYPE #193 #195 LAND CAPABILITYIVs-3* IVs-3 *Refer to Land Capability Classification, Appendix IXC, for definitions. Septic tank absorption fields: SOIL TYPE #193 #195 DEGREE OF ACCEPTANCE Severe; Severe; Peres slow, cemented pan Peres slow, cemented pan Soil Management Conclusion In reviewing the soil types at the dairy facility, the soils all have pockets of sand, sandy loam, clay loam and clay. All have substantial layers of hardpan that have been broken up from land leveling, deep ripping, chiseling and discing. They also have a slow to moderate rate of water permeability and low available water capacity. In consideration of proper winter water applications to the farming fields, the manure effluent storage system is designed to retain a worse case rainfall season. The annual rainfall in the area is purported to be 12 inches. The soils have none to rare flooding potential, therefore having slight limitations for the application of agricultural manure effluent. Agricultural manure effluent should be applied during periods of the year when the probability of flooding is low, which for this area is between April to October months. The projected capacity required at this facility (based on a seven month storage of manure effluent, milk parlor water and rainfall runoff) to ensure the maximum volume can be retained on site is 7,946,389 gallons (Phase 1), 9,329,429 gallons (Phase II); and adding the average 12 inches annually of rainfall plus 3.4 inches from a 25 year 24 hour storm is 823,2572 gallons (Phase 1), 1,197,1602 gallons (Phase 11), resulting in a total volume of manure effluent to be 10,856,061 gallons (Phase 1), 12,390,103 gallons (Phase II). Refer to Effluent Calculations, Appendix Vl. 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 10 Western Design/David Avila 2001