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1 <br /> <br />7 COLORADO MINED LAND RECLAMATION <br />Peak Flow Calculatation <br />~ Mine N:tme: NEW ELK MINE <br />Date: 2-16-19°7 <br />~ Calculations Performed by: R.P. <br />Watershed I.D.: K <br />Land Cover: Pli IE OAK ESTIfv1ATED CO`/ER 35 ~:. <br />Soil Hydrology Classification: U <br />CN number: 80 <br />Rainfall fora 10 Year 24 Hour Precipitation Event: 2.9 inches <br />Watershed Slope: 30 '% <br />Hydrolic Length of Watershed: 1250 feet <br />Watershed Area: 23.5 acres <br />East or West Colorado (For Type II Storm): EAST <br />Quantity of Runoff: 1.17551 inches <br />Equivalent Drainage Area: 19.70752 acres <br />Equivalent Peak Discharge: 28 cfs; inch <br />Slope Adjustment Factor: 1.12 <br />The Actual Discharge for This Watershed: 43.95804 cfs <br /> <br />