DWR_2668978

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 2002
• Document Type - Publications and Reports: Streamflow Report

19

PLATTE RIVER BASIN

LEFTHAND DIVERSION AT SO. ST. VRAIN CREEK NEAR WARD, CO

LOCATION.--Lat 40°05'29", long 105°30'31", the gage is located ½ mile downstream from gage on S. St. Vrain
Creek off Highway 72.

PERIOD OF RECORD AND DRAINAGE AREA.--Established station on May 21, 1992 at request of Water Commissioner
for administration of water rights in District 5, Div. 1. This station is operated as a partial
year record station usually from May to October.

GAGE.--A-71 continuous graphic chart recorder in a 42-inch corrugated shelter and concrete well with Data
Collection Platform (DCP) as primary record. Primary reference is tape down from RP.

REMARKS.--Primary record is hourly satellite data. Daily mean chart data was used July 15-19, 2002 when the
shaft encoder was off. The record is complete and reliable except for the following periods: October
19, 2001 thru May 13, 2002 when station was closed for the season. The Record is good during the
period of record, except for October 19 and May 13 which were estimated. This is a partial year
record station. Diversions continue through the winter when the station is closed for winter
conditions. Station maintained and record developed by Merlin Friedrichsen.

RATING TABLE.--LEFTHDCO02 USED FROM 01-OCT-2001 TO 28-OCT-2002

DISCHARGE, IN CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
MEAN VALUES

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

1 7.1 99 27 24 7.8
2 7.1 74 26 24 7.8
3 6.6 73 26 23 6.9
4 6.3 75 25 23 6.7
5 6.2 65 24 26 6.2
6 6.1 57 25 37 6.4
7 6 50 27 33 6.5
8 6.4 28 25 31 6.8
9 6.3 29 25 26 8.3
10 6.8 29 25 23 12
11 6.3 37 30 22 12
12 6.4 54 26 21 22
13 9.5 16 45 24 20 21
14 6.2 17 39 23 19 18
15 7.5 17 43 21 18 12
16 6.6 18 42 19 17 8.8
17 6.2 19 42 19 17 8
18 6.3 22 41 17 16 7.7
19 6 29 39 18 16 7.5
20 36 43 31 16 7.3
21 42 45 44 15 6.5
22 35 45 37 15 5.8
23 28 42 33 14 5.4
24 29 40 33 12 5.2
25 25 37 31 9.6 5
26 27 35 32 8.9 6.5
27 29 33 29 8.5 6.6
28 33 30 27 8.5 6.2
29 42 29 25 8.4 6.2
30 55 28 25 8.9 6.3
31 93 --- 25 7.9 ---

TOTAL 125.9 - - - - - - 612 1368 824 568.7 259.4
MEAN 4.06 - - - - - - 19.7 46 27 18.3 8.7
AC-FT 250 - - - - - - 1210 2710 1630 1130 515
MAX 9.5 - - - - - - 93 99 44 37 22
MIN - - - - - - - - 28 17 7.9 5

WTR YR 2002 TOTAL 3758 MEAN 10.3 MAX 99 MIN - AC-FT 7450

MAX DISCH: 105 CFS AT 02:00 ON Jun. 1, 2002 GH 2.08 FT. SHIFT -0.02 FT.
MAX GH: 2.08 FT. AT 02:00 ON Jun. 1, 2002

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

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