DWR_2668867

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 2008
• Document Type - Publications and Reports: Streamflow Report

1
PLATTE RIVER BASIN

06694650 SOUTH FORK SOUTH PLATTE RIVER BELOW ANTERO RESERVOIR

LOCATION.--Lat 38°59′37″, long 105°53'40″, Park County, Hydrologic Unit 10190001, on left bank about 400 ft
below Antero Reservoir.

DRAINAGE AREA AND PERIOD OF RECORD.--185 sq. mi.; 1976 to current year.

GAGE.--Data Collection Platform (DCP), shaft encoder and a continuous chart recorder in a concrete shelter and
well at a sharp-crested Cipolletti weir with broad-crested concrete overflow walls. Primary reference
gage is an electric tape gage. Gage is owned and maintained by the Denver Water Dept.

REMARKS.--Primary record is hourly averages of 15-minute satellite data, with chart record backup. Chart data
agreed with the satellite data within ±0.01 ft. and were used to fill in for missing satellite data on
Oct 28 and March 9, without loss of accuracy. The record is complete and reliable. Record is rated
good. Record developed by Mike Wild.

RATING TABLE.--MOD10FTCIP USED FROM 01-Oct-2007 TO 30-Sep-2008

DISCHARGE, IN CFS, WATER YEAR OCTOBER 2007 TO SEPTEMBER 2008
MEAN VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

1 2.6 5.0 7.6 12 4.2 8.8 31 13 133 114 37 8.2
2 2.6 5.0 8.4 8.0 4.2 8.8 38 7.1 142 127 37 8.2
3 2.5 5.0 8.3 8.0 4.2 8.7 38 7.0 169 118 31 6.9
4 4.2 5.0 8.3 8.2 4.2 8.5 46 7.0 179 114 28 6.4
5 4.7 5.0 8.5 8.0 4.2 8.5 50 7.0 178 104 28 5.8
6 4.4 5.0 8.5 20 4.1 10 50 6.9 177 77 28 5.5
7 5.2 5.0 8.5 26 4.1 12 50 7.0 154 55 36 5.5
8 4.2 5.0 8.5 26 4.0 8.0 41 7.0 123 62 45 5.0
9 4.2 5.0 8.5 26 8.3 6.9 37 6.8 106 65 47 4.7
10 4.2 5.3 12 26 11 7.3 37 6.2 101 65 60 4.7
11 4.0 5.3 16 19 10 7.3 31 21 100 64 79 4.7
12 3.9 5.3 16 16 10 7.3 28 28 100 65 77 4.7
13 3.9 5.1 22 11 10 9.2 23 28 91 64 46 4.7
14 4.5 5.0 25 7.6 10 12 20 29 86 64 40 4.4
15 4.7 5.0 25 7.6 10 15 36 42 87 64 40 4.5
16 4.7 5.9 25 7.6 10 18 43 58 88 64 40 4.5
17 4.5 6.7 25 7.6 10 33 43 70 94 58 40 4.4
18 4.4 6.7 25 7.8 10 41 43 81 113 55 57 4.6
19 5.0 6.7 25 7.8 10 29 43 84 120 55 81 4.7
20 5.1 6.6 25 7.9 10 22 35 62 121 55 89 4.7
21 4.5 6.7 25 7.9 10 13 31 52 121 55 64 4.6
22 4.7 6.7 25 7.9 10 8.2 31 52 121 49 52 4.6
23 4.7 6.7 16 7.9 10 8.2 31 52 121 36 45 4.7
24 4.7 6.7 19 7.9 10 8.2 31 52 142 31 34 4.7
25 4.7 6.7 24 7.9 10 8.2 31 63 152 30 25 4.7
26 4.9 6.7 24 7.9 10 8.2 31 68 171 33 20 4.7
27 5.0 6.6 24 6.0 10 8.2 25 80 151 36 17 4.7
28 5.0 6.5 24 4.2 9.3 8.2 22 85 112 38 12 4.7
29 5.0 6.5 24 4.2 8.8 8.2 22 98 106 37 8.2 4.7
30 5.0 6.4 24 4.2 --- 8.1 22 115 105 37 8.2 4.7
31 5.0 --- 24 4.2 --- 16 --- 127 --- 37 8.2 ---

TOTAL 136.7 174.8 569.1 338.3 240.6 384.0 1040 1422.0 3764 1928 1259.6 153.6
MEAN 4.41 5.83 18.4 10.9 8.30 12.4 34.7 45.9 125 62.2 40.6 5.12
AC-FT 271 347 1130 671 477 762 2060 2820 7470 3820 2500 305
MAX 5.2 6.7 25 26 11 41 50 127 179 127 89 8.2
MIN 2.5 5.0 7.6 4.2 4.0 6.9 20 6.2 86 30 8.2 4.4

CAL YR 2007 TOTAL 9193.5 MEAN 25.2 MAX 184 MIN 2.5 AC-FT 18240
WTR YR 2008 TOTAL 11410.7 MEAN 31.2 MAX 179 MIN 2.5 AC-FT 22630

MAX DISCH: 183 CFS AT 17:45 ON Jun. 3, 2008 GH 3.09 FT. SHIFT 0 FT.
MAX GH: 3.09 FT. AT 17:45 ON Jun. 3, 2008

FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD.