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Drainage Basin 1A <br />Hydrologic Area Area Curve <br />Soil Acres Sq. Mi Number <br />Group <br />10 yr Peak 10 yr Runoff <br />Discharge Amount <br />cfs in <br />100 yr Peak 100 yr Runoff <br />Discharge Amount <br />cfs in <br />Ustic Torriorth, c omplex, 35 to e 90 percent sl pesk outcrop <br />D <br />125.11 <br />0.1955 <br />Fair I <br />80 <br />48.11 <br />D.688 <br />155.41 <br />2.042 <br />Drainage Basin 2A <br />Hydrologic Area Area Curve <br />Soil Acres Sq. Mi Number <br />Group <br />10 yr Peak 10 yr Runoff <br />Discharge Amount <br />cfs in <br />100 yr Peak 100 yr Runoff <br />Discharge Amount <br />cfs in <br />Ustic Torriorthents, bouldery-Rock outcrop <br />c omplex, 35 to 90 percent slopes <br />D <br />117.4 <br />0.18341 <br />Poor <br />I 89 <br />85.2 <br />1.196 <br />200.4 <br />2.823 <br />Drainage Basin 3A <br />Hydrologic Area Area Land Type Curve <br />Soil Acres Sq. Mi Ground Cover Number <br />Group <br />10 yr Peak 10 yr Runoff <br />Discharge Amount <br />cfs in <br />100 yr Peak 100 yr Runoff <br />Discharge Amount <br />cfs in <br />Ustic Torriorthents, bouldery-Rock outcrop <br />complex, 35 to 90 percent slopes <br />D <br />56.8 <br />0.0888 <br />Poor <br />I 89 <br />49.3 <br />1.195 <br />116 <br />2.823 <br />Table 1 — Discharge, Runoff and Pond Volume Summary <br />Weighted Curve Number Calculations and Runoff Summar <br />Total <br />10 Year -6 Hour retention volume <br />Drainage Basin 1A <br />Drainage Basin 2A <br />Drainage Basin 3A <br />Total <br />288.3 <br />0.6 <br />Drainage 10 yr Peak 60 minute 60 minute <br />Basin (Acres) Discharge (cfs) Retention Retention <br />Volume (cf) Volume (af) <br />56.8 49.3 177480 4.07 <br />117.4 85.2 306720 7.04 <br />125.1 48.1 173160 3.98 <br />182.6 657360 15.09 <br />182.6 <br />471.8 <br />