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• TABLE 2 <br />(Continued) <br />3Determined by utilizing Soil Conservation Service (SCS, 1981) Soit Interpretation <br />Procedural Guidelines for preparing SCS-SOILS-5 forms (Tab 9, Addendum 5) and map unit <br />composition information listed in Tab 9, Addendum 4. <br />ASu rf ace soil horizon k values (Tab 9, Addendum 5) Nere caltuleted by utilizing the <br />USDA-ARS revised USLE software program. The k values were adjusted for volumetric rock <br />fragments, whenever necessary, according to Table 603-5 (SCS, 1983 - National Soils <br />Xandbook). The map unit k factors ere based upon composition percentage information <br />listed in Teb 9, Addendum 4. <br />Particle Size Distributions. The particle size distribution is based on sieve and <br />hydrometer analysis of various soil types in the proposed permit area. The distribution <br />is en average of the soil types in the mine area. <br />The specific gravity of the soil and the submerged bulk specific gravity were estimated <br />• based on various soil types. Specific gravity and submerged bulk specific gravity were <br />estimated to be 2.50 and 1.25, respectively. <br />R-Factor. The R-factor for the Seneca II-w Mine area was determined to be 30. <br />~ Leneth-Slone Factor (L S). The length slope is described as the Cypicel length-slope for <br />the subwatershed end the distance from the point of origin of overland flow until the <br />point that the slope decreases such that significant deposition occurs, or until the flow <br />enters a defined channel. Following is McKOOk et al.'s (1987) L,S equation: <br />C~ <br />13-1-7 Revised 03/01/95 <br />