FRASER RIVER BASIN

09025300 ELK CREEK AT UPPER STATION NEAR FRASER, CO

LOCATION.--Lat 39°53'22", long 105°49'55", (unsurveyed), T.2 S., R.76 W., Grand County, Hydrologic Unit 14010001, on right bank 150 ft downstream from Main Elk dam on the St. Louis collection system, 1,100 ft upstream from aqueduct, and 4.0 mi south of Fraser.

DRAINAGE AREA.--1.67 mi2.

PERIOD OF RECORD.--October 1996 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09025300

GAGE.--Water-stage recorder. Elevation of gage is 9,400 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, which are poor. Transmountain diversions upstream from station to Moffat water tunnel. Several measurements of specific conductance and water temperature were obtained and are published in the "Supplemental Water-Quality Data For Gaging Stations" section of this report.

Discharge, cubic feet per second 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAILY MEAN VALUES

DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
1	0.61	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e3.3	e13	8.9	1.7	1.5
2	0.62	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e3.1	e14	7.7	1.7	1.4
3	0.64	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e3.1	e15	5.9	1.9	1.4
4	0.62	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e3.0	e11	5.6	1.9	1.4
5	0.64	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e3.0	e9.0	5.0	1.7	1.3
6	0.67	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e2.9	e6.4	4.7	1.6	1.4
7	0.67	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e3.4	e6.3	4.3	1.6	1.8
8	0.65	e0.00	e0.00	e0.00	e0.00	e0.00	e0.00	e3.6	e6.2	4.0	1.5	1.6
9	0.62	e0.00	e0.00	e0.00	e0.00	e0.00	e1.0	e3.8	e6.1	3.8	1.4	2.0
10	0.61	e0.00	e0.00	e0.00	e0.00	e0.00	e1.3	e3.9	e7.0	3.9	1.4	1.7
11	0.61	e0.00	e0.00	e0.00	e0.00	e0.00	e1.5	e3.5	e8.0	3.9	1.4	1.6
12	0.60	e0.00	e0.00	e0.00	e0.00	e0.00	e1.7	e3.0	e9.0	4.0	1.4	1.5
13	e0.57	e0.00	e0.00	e0.00	e0.00	e0.00	e1.8	e2.8	e11	4.0	1.4	1.3
14	e0.59	e0.00	e0.00	e0.00	e0.00	e0.00	e2.0	e3.5	17	3.8	1.3	1.2
15	e0.65	e0.00	e0.00	e0.00	e0.00	e0.00	e2.2	e4.2	18	3.7	1.3	1.2
16	e0.57	e0.00	e0.00	e0.00	e0.00	e0.00	e2.4	e5.0	12	3.6	2.1	1.2
17	e0.58	e0.00	e0.00	e0.00	e0.00	e0.00	e2.4	e6.0	6.1	3.4	2.1	1.2
18	e0.58	e0.00	e0.00	e0.00	e0.00	e0.00	e2.3	e6.8	6.5	3.3	2.4	1.2
19	e0.58	e0.00	e0.00	e0.00	e0.00	e0.00	e2.2	e7.8	13	3.1	1.6	1.2
20	e0.55	e0.00	e0.00	e0.00	e0.00	e0.00	e2.1	e8.5	18	3.4	1.5	1.2
21	e0.48	e0.00	e0.00	e0.00	e0.00	e0.00	e2.3	e9.2	18	2.9	1.4	1.2
22	e0.39	e0.00	e0.00	e0.00	e0.00	e0.00	e2.2	e8.0	17	2.7	1.4	1.1
23	e0.38	e0.00	e0.00	e0.00	e0.00	e0.00	e2.1	e7.0	16	2.5	1.5	1.1
24	e0.39	e0.00	e0.00	e0.00	e0.00	e0.00	e2.2	e6.0	15	2.4	1.7	1.1
25	e0.40	e0.00	e0.00	e0.00	e0.00	e0.00	e2.4	e8.5	14	2.4	2.1	0.98
26	e0.41	e0.00	e0.00	e0.00	e0.00	e0.00	e2.5	e9.5	12	2.3	1.8	0.97
27	e0.38	e0.00	e0.00	e0.00	e0.00	e0.00	e2.6	e12	11	2.2	1.5	0.96
28	e0.37	e0.00	e0.00	e0.00	e0.00	e0.00	e2.8	e15	11	2.1	1.5	0.97
29	e0.37	e0.00	e0.00	e0.00	---	e0.00	e2.9	e20	10	2.1	1.4	0.97
30	e0.40	e0.00	e0.00	e0.00	---	e0.00	e3.0	e14	9.2	2.0	1.7	0.89
31	e0.45	---	e0.00	e0.00	---	e0.00	---	e15	---	1.9	1.6	---
TOTAL	16.65	0.00	0.00	0.00	0.00	0.00	47.90	208.4	345.8	115.5	50.5	38.54
MEAN	0.54	0.000	0.000	0.000	0.000	0.000	1.60	6.72	11.5	3.73	1.63	1.28
MAX	0.67	0.00	0.00	0.00	0.00	0.00	3.0	20	18	8.9	2.4	2.0
MIN	0.37	0.00	0.00	0.00	0.00	0.00	0.00	2.8	6.1	1.9	1.3	0.89
AC-FT	33	0.00	0.00	0.00	0.00	0.00	95	413	686	229	100	76
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1997 - 2003, BY WATER YEAR (WY)
MEAN	0.50	0.10	0.096	0.091	0.066	0.060	0.33	1.83	7.41	2.52	1.31	0.91
MAX	0.77	0.68	0.67	0.64	0.47	0.41	1.60	6.72	16.3	3.73	2.03	1.28
(WY)	(1997)	(1997)	(1997)	(1997)	(1997)	(1997)	(2003)	(2003)	(1997)	(2003)	(1999)	(2003)
MIN	0.22	0.000	0.000	0.000	0.000	0.000	0.000	0.17	2.27	0.92	0.62	0.57
(WY)	(2002)	(1998)	(1998)	(1998)	(1998)	(1999)	(1999)	(1997)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1997 - 2003
ANNUAL TOTAL	201.95	823.29
ANNUAL MEAN	a0.55	a2.26	a1.27
HIGHEST ANNUAL MEAN			2.26 2003
LOWEST ANNUAL MEAN			0.53 2002
HIGHEST DAILY MEAN	3.3 Jun 3	e20 May 29	b20 Jun 10, 1997
LOWEST DAILY MEAN	e0.00 Jan 1	c,e0.00 Nov 1	d0.00 May 7, 1997
ANNUAL SEVEN-DAY MINIMUM	e0.00 Jan 1	e0.00 Nov 1	0.00 May 7, 1997
MAXIMUM PEAK FLOW		not determined	22 Jun 10, 1997
MAXIMUM PEAK STAGE		not determined	5.69 Jun 10, 1997
ANNUAL RUNOFF (AC-FT)	a401	a1,630	a918
10 PERCENT EXCEEDS	1.7	7.3	2.9
50 PERCENT EXCEEDS	0.45	0.62	0.43
90 PERCENT EXCEEDS	0.00	0.00	0.00

e Estimated. a Significantly affected by upstream diversions into the Moffat water tunnel. b Also occurred May 29, 2003. c No flow many days. Many values estimated. d No flow many days each year.