Cottonwood Creek Appendices

• Case Number: 05CW0149
• Stream Name: Cottonwood Creek
• Water Division: 4
• Water District: 60
• County: Montrose
• Instream Flow App - Doc Type: Supplemental Data

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Station: DOLORES RIVER AT BEDROCK, CO.
Parameter: Streamflow (cfs)
Year: 1917-1995
State: COLORADO
County: MONTROSE

ID: 09169500
Statistic: Mean
Latitude: 38:18:37
Longitude: 108:53:05
Elevation: 4940.00
Drainage Area: 2024.00

Monthly Statistics

Jan Fob Mar Apr May Jun Jul Aug Sop Oct Nov Dee Ann
# Days 899 819 899 870 899 870 899 930 900 899 870 899 10653
Avg Day 67.15 80.35 212.7 1213 1973 1262 238.6 104.3 63.14 75.12 69.03 63.12 450.3
Max Day 408.0 267.0 1700 8150 7190 6670 2180 1790 925.0 1870 890.0 400.0 8150
Min Day 10.00 22.00 12.00 5.90 0.220 0.040 0.040 0 0 2.80 5.40 5.00 0
# Months 29 29 29 29 29 29 29 30 30 29 29 29 29
SDev Month 37.71 37.09 176.1 932.6 1390 1006 222.8 115.9 62.08 72.92 76.42 47.01 289.7
Skew Month 1.66 0.722 1.46 0.474 0.359 0.382 1.25 1.88 2.11 2.13 3.16 2.53 0.170
Min Month 17.35 25.00 15.46 9.00 2.73 0.6n 2.59 0.469 2.73 6.17 7.93 10.09 28.60
Max Month 198.0 180.6 n4.1 3260 4884 3189 818.2 469.3 298.1 334.0 399.4 254.4 999.6
Exceedences
1% 380.0 206.6 1270 7068 6210 4279 1620 1172 503.0 540.3 502.0 356.0 4335
5% 130.0 170.2 704.2 4030 4872 3430 1043 424.5 228.0 238.1 181.0 160.1 2620
10% 110.2 138.0 495.3 3070 3960 3030 643.3 225.0 141.0 150.2 124.0 112.2 1470
20'4 85.00 109.2 293.2 2010 3320 2280 357.0 124.0 82.00 99.20 93.00 81.00 484.8
60% 60.00 70.50 125.0 nO.O 1745 1070 93.00 53.00 36.00 51.00 46.00 50.00 80.00
80% 36.00 42.00 58.00 189.0 600.0 99.00 27.00 8.90 6.20 9.00 13.00 30.00 27.00
90\1 28.00 32.00 35.00 64.00 78.60 25.00 5.69 2.60 4.40 6.40 9.40 14.90 11.00
95% 24.00 25.00 22.95 26.00 24.95 3.75 0.649 1.20 3.60 5.40 8.50 10.00 5.90
99% 14.00 24.00 14.00 6.97 1.70 0.050 0.070 0.093 0.470 3.90 7.10 6.80 0.520

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Printed From: HydnxlataWEST_1, 03-17-9810:00:58AM