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• <br />TABLE 4 <br />Weighted Curve Number (CN) <br />Vegetation Hydrologic Area <br />Cover Soil Group CN (Acres) CN (x) Area <br />Juniper-Grassland D 89 0.34 30.3 <br />Reclaimed C 81 7.35 595,4 <br /> TOTAL 7.69 625.7 <br />Weighted CN = Total CNX Area = 625.7 = 81.4 Use 82 <br /> Tota Area 7.69 <br />TABLE 5 <br /> Hydrologic Area <br />Soil Type Soil Group "k" Factor (Acres) "k" (x) Area <br />9904/D-2 D 0.22 0.34 0.075 <br />• Reclaimed C 0.25 7_35 1.838 <br /> TOTAL 7.69 1.913 <br />Weighted "k" Factor = Total ( "k" x Area) = 1.913 = 0.249 Use 0.25 <br /> Tota rea <br />• <br />Precipitation and Storm Type <br />Precipitation depths for the 10-year, and 25-year storms were developed <br />using procedures and data published in the Soil Conservation Service <br />publication "Procedures for Determining Peak flows in Colorado". A <br />standard SCS Type II storm was utilized for each analysis. <br />Unit Hydrograph and Surface Condition <br />The SEDIMOT II computer program provides three unit hydrograph shapes to <br />choose from in determining the runoff characteristics of a watershed. <br />The disturbed hydrograph (No. 1) was used for disturbed and reclaimed <br />areas. <br />6 <br />