2013-10-30_PERMIT FILE - C1981038A (2)

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Civil Software Design -- SEDCAD+ Version 3.0 Copyright (C) 1987-1990. Pamela J. Schwab. All rights reserved. Comppany Name: Cyprus Yampa Coal Filename: A:\OVWMNOR User: Karl C. Koehler Date: 04-04-1993 Time: 15:03:17 ORCHARD VALLEY WEST MINE FILL SLOPE (NORTHERN EXPOSURE) Storm: 1.70 inches, 10 ear-24 hour SCS Type II Hydrograph Convolution 'Interval: 0.1 hr ----------------------------------------- ----------------------------------------- NON-POND STRUCTijRE INPUT/OUTPUT TABLE ----------------------------------------- ----------------------------------------- J1 Bl, S1 TOE G{2ASS FILTER Drainage Area from J1, B1, S1, SWS(s)1: 0.8 acres Total Contributing Drainage Area: 0.8 acres GRASS FILTER INPUTS: Bulk Sgecific Gravity: 1.25 Initial De th of Sediment in Zone D: 0.00 inches Manning's ~rass Grass Infiltration Stiffness ------ Filter - Seg n Height Spacing Rate Factor Lenggth Width Slope # (in) (in) (iph) (N-sq m) (ft) (ft) (%) ---------------------------------------------------------------------------- --------------------------------------------------------------------------- 1 0.0100 6,0 3.0 0.15 2.000 20.0 60.0 33.0 Total Filter Peak Critical Filter Sediment Trap Infiltration Infiltration Flow Prone Travel Wed e Depth Efficiency Volume Rate Depth Velocity Time Loca~ion in Zone D (%) (ac-ft) (cfs) (inch) (fps) (hrs) (feet) (inch) ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- 94.5 0.0018 0.0042 0.025 0.8122 0.1000 0.243 0.1325 Runoff Peak Peak Sediment Peak Settleable Volume Discharge Sediment Concentration Concentration 24VW 24AA • (ac-ft) (cfs) (tons) (mg/1) ml/1 (ml/1) (ml/1) ------------------------------------------------------------------------------ ------------------------------------------------------------------------------- IN 0.01 0.17 1.5 214170 125.55 63.44 9.93 OUT 0.01 0.16 0.1 27781 0.00 0.00 0.00 • s9t=is