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Soil Chemical Analysis The capability of soil to receive agricultural manure effluent is classified in three categories: slight, moderate and severe, each labeling the soils' capability limitations to the applications of agricultural manure effluent. The following categories represent specific areas that are commonly used to evaluate soil. Furthermore,the soils evaluated and described in this section were from Soil Type#149. • Available water capacity: Site conditions of>6.0" are considered to have slight limitations Site conditions of 3.0" to 6.0" are considered to have moderate limitations Site conditions of<3.0" are considered to have severe limitations Depth(inches) Available Water Capacity Average Available Water (inches of water/inches of soil) Capacity inches of water/inches of soil 1-13 0.10-0.13 0.12 13-28 0.11-0.14 0.13 28-80 --- Based on the table above, the amount of available water capacity in soil type#149 is considered to have severe limitations to applications of agricultural manure effluent. It is recommended to reduce application rates, splitting applications, and applying waste only during the growing season, thereby diminishing the potential for ground and surface water contamination and help prevent agricultural manure effluent overloading. The volume of liquid agricultural manure effluent application should not exceed the available water capacity of the soil.' • Dense layer(Bulk density),grams/cc: The soil is considered to be <1.7 grams/cc, which classifies them as having a slight limitation to applications of agricultural manure effluent. It is recommended that applications of solids are when soil moisture content is such that the field is in tillable condition. Applications reduce bulk density and minimize compaction.' • Cation exchange,meq/100g of soil: Site conditions of>15 are considered to have slight limitations Site conditions of 5 to 15 are considered to have moderate limitations Site conditions of<5 are considered to have severe limitations Soil samples had test results between 7.9 and 14.1, which is considered to have moderate limitations to applications of agricultural manure effluent. It is recommended that this is a relatively low adsorption and exchange of cations and heavy metals. Soil monitoring of element concentrations through the soil profile is recommended to evaluate farming practices and application rates of solids and nutrient laden water. • Depth to Claypan**: Site conditions of>40" are considered to have slight limitations Site conditions of 20"to 40" are considered to have moderate limitations Site conditions of<20"are considered to have severe limitations Based on soil type #149. hardpan is 20" to 40" from the surface, which is considered to be moderate. 1.ArAcultural Waste Management Field Handbook USDA.SCS 'Western Design/David Avila 2001 12