DWR_2668978

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

9

PLATTE RIVER BASIN

06708000 SOUTH PLATTE RIVER AT WATERTON, CO

LOCATION.--Lat 39°29'18", long 105°05'32", in NE¼ sec. 34, T.6 S., R.69 W., Jefferson County, Hydrologic
Unit 10190002, on left bank 168 ft downstream from bridge on State Highway 221, 0.4 mi south of
Waterton, 4.7 mi west of Louviers, and 6 mi upstream from Plum Creek.

DRAINAGE AREA AND PERIOD OF RECORD.--2,621 mi²; 1926 to present.

GAGE.--Graphic stage recorder, and satellite monitoring DCP with a phone modem (on separate floats)-- in a
60” galvanized, corrugated steel shelter and well. The primary reference is an electric drop tape.
Datum of gage 5,484.43 ft National Geodetic Vertical Datum.

REMARKS.--The primary record is hourly data taken from satellite monitoring with chart back up. Due to an
unusually large number of parity errors (large bogus values) in the satellite database, the record
for December—September was worked from logged data from the DCP. The record is rated good except
for December through March, which is fair and the following ice days which were estimated; December
13, 16, 19, 23, 29, 31; January 5, 6, 11, 12, 14, 15, 17, 18, 31; February 1-5, 10-16, 26, 27, 28;
March 1, 2, 4-6. Station was maintained and record was developed by R.E.Cooper.

RATING TABLE.--PLAWATCO09 USED FROM 01-OCT-2001 TO 30-SEP-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 31 33 40 36 36 39 31 34 44 49 31 32
2 35 32 42 35 36 39 32 37 43 57 31 30
3 33 33 42 35 36 39 32 33 44 50 32 34
4 33 32 41 37 36 39 36 33 52 48 38 31
5 35 30 38 36 36 39 34 32 46 64 33 30
6 35 30 36 36 35 39 33 31 50 91 37 31
7 31 31 35 36 34 40 33 31 53 46 35 33
8 32 32 36 36 35 40 34 35 47 43 66 33
9 30 32 35 36 38 42 34 32 45 42 126 35
10 32 35 34 37 36 41 34 33 46 44 30 35
11 29 40 34 36 36 40 34 33 46 45 33 33
12 33 40 34 36 36 40 34 35 45 49 33 32
13 30 42 35 36 38 40 33 35 46 47 30 44
14 32 42 36 36 38 42 33 33 46 46 30 55
15 31 42 35 36 38 43 32 45 46 45 29 29
16 31 42 35 36 38 42 33 68 46 45 29 30
17 34 42 35 36 38 40 34 66 44 45 34 30
18 30 43 35 36 39 40 34 67 43 45 35 33
19 30 43 35 35 39 42 34 67 44 45 35 33
20 30 41 36 36 39 34 35 68 44 45 33 32
21 30 41 35 36 38 35 33 68 44 47 34 32
22 31 41 35 37 38 32 30 67 45 103 34 32
23 31 42 35 38 37 31 31 69 44 128 33 31
24 34 41 34 36 38 32 33 82 46 47 33 31
25 34 42 33 35 39 33 32 80 45 49 33 31
26 32 42 35 35 40 32 32 78 44 44 32 33
27 35 42 35 38 38 34 33 79 43 44 33 35
28 31 42 35 38 38 33 33 77 49 44 33 35
29 32 41 35 36 --- 45 32 77 52 44 34 34
30 32 41 36 36 --- 32 33 76 49 46 33 34
31 31 --- 36 36 --- 32 --- 62 --- 42 32 ---

TOTAL 990 1152 1113 1120 1043 1171 991 1663 1381 1629 1144 1003
MEAN 32 38 36 36 37 38 33 54 46 53 37 33
AC-FT 1960 2280 2210 2220 2070 2320 1970 3300 2740 3230 2270 1990
MAX 35 43 42 38 40 45 36 82 53 128 126 55
MIN 29 30 33 35 34 31 30 31 43 42 29 29

WTR YR 2002 TOTAL 14400 MEAN 39.5 MAX 128 MIN 29 AC-FT 28560

MAX DISCH: 212 CFS AT 13:30 ON Jul. 22, 2002 GH 1.23 FT. (Corrected) SHIFT 0.02 FT.
MAX GH: 1.23 FT. (Corrected) AT 13:30 ON Jul. 22, 2002

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

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