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Civil Software Design -- SEDCAD+ Version 3.1 <br />Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved. <br />Companyy Name: CYPRUS YAMPA VALLEY COAL <br />• Filename: E:\SEDCAD3\TCC\DEH2OAA User: CW BEGEJ <br />Date: 06-02-1995 Time: 08:02:38 <br />CULVERT EMD-1 ON ACCESS ROAD TO TCC DEWATERING FACILITY <br />Storm: 1.80 inches, 10 ear-24 hour, SCS Type II <br />Hydrograph convolution Interval: 0.1 hr <br />SUBWATERSHED/STRUCTURE INPUT/OUTPUT TABLE <br />-Hydrology- <br /> Base- Runoff Peak <br />BS SWS Area CN UHS Tc K X Flow Volume Discharge <br />_ _ (ac) (hrs) (hrs) (cfs) (ac-ft) (cfs) - <br />Y <br />F <br />R11 1 4.59 70 M 0.368 0.011 0 348 0.0 0.07 0.26 <br />" '. 2 22.73 85 S 0.093 0.000 0.000 0.0 1.23 16.16 <br /> Type: Culvert Label: UP MTN SHRUH & CROP <br />`_ucture <br />---- <br />--- 27.32 <br />- <br />- <br />- <br />---- <br />--- <br />- <br />---- <br />- 1.30 <br />--------- <br />--------- <br />- <br />---- <br />~ral IN/OUT -------------- <br />27.32 - <br />- <br />--- <br />---- - - <br />-- - 1.30 16.28 <br /> <br />• <br />• <br />I'It93-113 Exhibit 8a, Page 4 of 18 Revised 9/19/95 <br />