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,~ ,. . _. <br />_.~ <br /> <br /> <br />COLORADO MINED LAID RECLAMATION <br />Peak Flow Calculatation <br />Mine Name: NEW ELK MINE <br />Date: 2-16-1987 <br />Calculations Performed by: R.P. <br />Watershed I.D.: R <br />Land Cover: PINE OAK ESTIMATED COVER 35'% <br />Soil Hydrology Classification: D <br /> <br />7 <br />CN number: 80 <br />Rainfall fora 10 Year 24 Hour Precipitation Event: 2.9 inches <br />VV ~.~nrchod CIPPA~ dF-l 1. <br />Hydrolic Length of Watershed: 2600 feet <br />Watershed Area: 92.5 acres <br />East or West Colorado (For Type II Storm): EAST <br />Quantity of Runoff: 1.17551 inches <br />Equivalent Drainage Area: 66.79567 acres <br />Equivalent Peak Discharge: 75 cfs/inch <br />Slope Adjustment Factor: 1.23 <br />The Actual Discharge for This Watershed: 150.1711 cfs <br /> <br /> <br /> <br />