FRASER RIVER BASIN

09026500 ST. LOUIS CREEK NEAR FRASER, CO

LOCATION.--Lat 39°54'36", long 105°52'40", in SE14SW14 sec.34, T.1 S., R.76 W., Grand County, Hydrologic Unit 14010001, on left bank 300 ft downstream from West St. Louis Creek, and 4.1 mi southwest of Fraser.

DRAINAGE AREA.--32.9 mi2.

PERIOD OF RECORD.--October 1933 to current year. Prior to August 1934, monthly discharge only, published in WSP 1313. Records for May 1956 to September 1959, equivalent to earlier records if diversion to Moffat water tunnel is added to flow past station. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09026500

REVISED RECORDS.--WSP 2124: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry. Datum of gage is 8,980.17 ft above NGVD of 1929.

REMARKS.--Records fair except for estimated daily discharges, which are poor. Transmountain diversions upstream from station to Moffat water tunnel not known since 1959. 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	5.4	e4.4	e3.6	e2.8	e2.3	e2.5	e2.9	e3.7	260	120	19	11
2	5.4	e4.4	e3.6	e2.8	e2.3	e2.5	e3.0	e4.1	192	47	18	10
3	5.8	e4.3	e3.5	e2.7	e2.3	e2.5	e3.0	e4.4	106	27	21	11
4	6.0	e4.3	e3.5	e2.7	e2.3	e2.5	e3.1	e4.4	55	27	22	11
5	5.6	e4.2	e3.4	e2.7	e2.3	e2.5	e3.2	e4.5	53	26	19	10
6	5.4	e4.2	e3.4	e2.7	e2.4	e2.5	e3.3	e4.7	48	27	17	10
7	5.4	e4.2	e3.4	e2.7	e2.4	e2.5	e3.3	e4.8	48	27	17	12
8	5.4	e4.1	e3.4	e2.6	e2.4	e2.5	e3.3	e4.8	45	26	18	12
9	5.4	e4.1	e3.3	e2.6	e2.4	e2.5	e3.4	e4.8	44	25	18	20
10	5.4	e4.1	e3.3	e2.6	e2.4	e2.5	e3.5	e5.0	60	26	18	12
11	5.4	e4.0	e3.3	e2.6	e2.5	e2.5	e3.6	e5.3	89	26	18	9.6
12	5.3	e4.0	e3.2	e2.6	e2.4	e2.5	e3.7	e7.0	145	27	17	9.9
13	5.1	e4.0	e3.2	e2.6	e2.4	e2.5	e3.7	e10	191	26	17	8.8
14	5.5	e3.9	e3.2	e2.5	e2.5	e2.5	e3.7	14	217	26	17	8.1
15	5.8	e3.9	e3.2	e2.5	e2.4	e2.5	e3.8	18	229	27	16	7.6
16	5.3	e3.9	e3.2	e2.5	e2.4	e2.5	e3.9	25	145	26	25	6.7
17	5.3	e3.9	e3.1	e2.4	e2.4	e2.5	e3.9	35	52	26	39	8.2
18	5.2	e3.9	e3.1	e2.4	e2.5	e2.5	e3.9	38	55	25	28	8.3
19	5.4	e3.9	e3.1	e2.4	e2.5	e2.5	e3.8	35	136	26	17	8.6
20	5.6	e3.8	e3.1	e2.3	e2.5	e2.5	e3.8	33	221	26	15	8.3
21	5.2	e3.8	e3.0	e2.3	e2.5	e2.5	e3.8	38	228	24	14	8.3
22	4.9	e3.8	e3.0	e2.2	e2.5	e2.5	e3.8	41	223	22	14	8.3
23	4.7	e3.8	e3.0	e2.2	e2.5	e2.5	e3.7	36	224	22	15	8.3
24	4.6	e3.7	e3.0	e2.2	e2.5	e2.5	e3.7	35	214	21	16	8.5
25	4.6	e3.7	e2.9	e2.2	e2.5	e2.5	e3.7	36	202	22	19	8.8
26	4.7	e3.7	e2.9	e2.2	e2.5	e2.5	e3.7	37	187	18	18	8.7
27	4.6	e3.7	e2.9	e2.3	e2.5	e2.5	e3.7	40	182	18	13	8.7
28	4.5	e3.6	e2.9	e2.3	e2.5	e2.5	e3.7	63	180	18	12	8.7
29	e4.5	e3.6	e2.8	e2.3	---	e2.6	e3.7	107	179	20	12	8.8
30	e4.5	e3.6	e2.8	e2.3	---	e2.7	e3.7	142	174	20	13	13
31	e4.5	---	e2.8	e2.3	---	e2.8	---	167	---	19	13	---
TOTAL	160.4	118.5	98.1	76.5	68.0	78.1	107.0	1,007.5	4,384	863	555	293.2
MEAN	5.17	3.95	3.16	2.47	2.43	2.52	3.57	32.5	146	27.8	17.9	9.77
MAX	6.0	4.4	3.6	2.8	2.5	2.8	3.9	167	260	120	39	20
MIN	4.5	3.6	2.8	2.2	2.3	2.5	2.9	3.7	44	18	12	6.7
AC-FT	318	235	195	152	135	155	212	2,000	8,700	1,710	1,100	582
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1934 - 2003, BY WATER YEAR (WY)
MEAN	11.7	9.13	7.44	6.69	6.18	6.29	9.29	36.8	114	63.4	23.6	14.3
MAX	31.4	19.7	14.3	12.0	11.0	12.0	26.2	102	263	250	70.1	34.1
(WY)	(1962)	(1996)	(1946)	(1946)	(1946)	(1946)	(1960)	(1936)	(1997)	(1995)	(1945)	(1938)
MIN	2.63	2.90	2.28	2.00	2.07	2.35	3.41	8.62	14.5	11.6	6.38	4.39
(WY)	(1965)	(1967)	(1968)	(1961)	(1968)	(1968)	(1970)	(1968)	(2002)	(2002)	(2002)	(1963)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1934 - 2003
ANNUAL TOTAL	2,614.7	7,809.3
ANNUAL MEAN	a7.16	a21.4	a25.8
HIGHEST ANNUAL MEAN			48.9 1995
LOWEST ANNUAL MEAN			7.84 2002
HIGHEST DAILY MEAN	21 May 20	260 Jun 1	418 Jun 18, 1995
LOWEST DAILY MEAN	e2.8 Dec 29	e2.2 Jan 22	b1.8 Jan 25, 1968
ANNUAL SEVEN-DAY MINIMUM	e2.9 Dec 25	e2.2 Jan 20	1.8 Jan 24, 1968
MAXIMUM PEAK FLOW		289 Jun 1	558 Jun 17, 1995
MAXIMUM PEAK STAGE		2.34 Jun 1	c2.80 Jun 17, 1995
ANNUAL RUNOFF (AC-FT)	a5,190	a15,490	a18,680
10 PERCENT EXCEEDS	14	42	60
50 PERCENT EXCEEDS	5.2	4.4	10
90 PERCENT EXCEEDS	3.7	2.5	4.7

e Estimated. a Significantly affected by upstream diversions into the Moffat water tunnel up. b Also occurred Jan 26-30, Feb 1-2, and Feb 14, 1968. c Maximum gage height, 3.21 ft, Jun 10, 1952, backwater from log on control.