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Civil Software Design -- SEDCAD+ Version 3.1 Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved. • Company Name: ACZ, INC. Filename: D:\TOM\SENECA\PONDOlOB User: TEL Date: 09-13-1995 Time: 10:20:19 YOAST MINE: SEDIMENT POND 010 (25-year,24-hour) Storm: 2.10 inches, 25 year-24 hour, SCS Type II Hydrograph Convolution Interval: 0.2 hr ELEVATION-AREA-CAPACITY-DISCHARGE TABLE ------------------------------------------- ------------------------------------------- J3, B1, S1 YOAST POND 10 Drainage Area from J3, B1, S1, SWS(s)1: 152.5 acres Total Contributing Drainage Area: 948.5 acres SW#1: Emergency Spillway Elev Stage Area Capacity Discharge ------- (ft) ------- (ac) ------- (ac-f t) --------- (cfs) ----------------------------------- 6779.00 0.00 0.20 - - 0.00 ----------- - 6781.00 2.00 1.57 2.21 6781.13 0.00 1.60 2.40 0.00 Top of Sediment Storage (0 Stage) 6781.50 0.37 1.66 0.60 0.00 2.00 0.87 1.76 1.45 0.00 2.50 1.37 1.86 2.36 0.00 6783.00 1.87 1.96 3.31 0.00 6783.50 2.37 2.07 4.32 0.00 6784.00 2.87 2.18 5.38 0.00 6784.50 3.37 2.29 6.50 0.00 6785.00 3.87 2.40 7.67 0.00 6785.50 4.37 2.49 8.89 0.00 6786.00 4.87 2.59 10.16 0.00 6786.50 5.37 2.68 11.48 0.00 6787.00 5.87 2.78 12.85 0.00 6787.50 6.37 2.88 14.26 0.00 6788.00 6.87 2.98 15.73 0.00 6788.50 7.37 3.09 17.25 0.00 Stage of SW#1 6789.00 7.87 3.19 18.82 8.78 6789.13 8.00 3.22 19.25 11.13 6789.23 8.10 3.24 19.57 12.89 6789.33 8.20 3.27 19.90 17.00 6789.43 8.30 3.29 20.23 21.56 6789.50 8.37 3.30 20.44 26.56 6789.93 8.80 3.40 21.90 53.28 6790.00 8.87 3.41 22.12 61.21 6790.43 9.30 3.51 23.62 96.29 6790.50 9.37 3.53 23.86 106.23 6790.57 9.44 3.54 24.12 113.53 Peak Stage 0.93 9.80 3.63 25.41 148.68 1.00 9.87 3.64 25.65 160.40 6791.43 10.30 3.75 27.25 217.95 6791.50 10.37 3.76 27.50 233.75 6791.93 10.80 3.87 29.15 302.80 6792.00 10.87 3.88 29.41 321.55