WILLIAMS FORK BASIN

09035700 WILLIAMS FORK ABOVE DARLING CREEK, NEAR LEAL, CO

LOCATION.--Lat 39°47'50", long 106°01'32", in NW14NW14 sec.16, T.3 S., R.77 W., Grand County, Hydrologic Unit 14010001, on left bank 0.3 mi upstream from Darling Creek, and 1.4 mi southeast of Leal.

DRAINAGE AREA.--35.0 mi2.

PERIOD OF RECORD.--October 1965 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09035700

REVISED RECORDS.--WDR CO-93-2: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 8,940 ft above NGVD of 1929, from topographic map. Prior to Oct. 1, 1972, and May 6, 1981 to Jan. 31, 1983, at site 300 ft upstream at different datum. Feb. 1, 1983 to Oct. 19, 1992, and Oct. 1, 1972 to May 5, 1981, at site 0.6 mi upstream at different datum.

REMARKS.--Records good except for estimated daily discharges, which are poor. Transmountain diversion upstream from station through August P. Gumlick Tunnel (station 09035000). 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	6.6	e5.1	7.4	e4.2	e4.5	e4.4	e6.5	21	443	196	24	16
2	7.1	e5.2	7.9	e4.3	e5.0	e4.2	e6.6	20	386	191	23	15
3	8.9	e5.4	7.2	e4.5	e4.7	e4.0	e6.8	19	359	186	29	15
4	7.8	e5.1	e6.9	e4.5	e4.4	e4.0	e7.0	19	328	179	30	15
5	7.9	e5.7	e7.2	e4.0	e4.5	e4.4	e6.5	18	304	170	23	14
6	7.1	e5.5	e6.9	e3.9	e4.3	e4.3	e6.6	17	268	152	22	15
7	7.6	e5.7	e6.6	e3.9	e4.3	e4.2	e6.5	17	245	111	21	18
8	8.5	e5.9	e6.5	e4.3	e4.4	e4.2	e6.1	17	227	68	21	18
9	8.1	e6.1	e6.3	e4.3	e3.9	e4.4	e7.0	17	245	63	20	25
10	7.6	e6.3	e5.9	e4.2	e3.9	e4.4	e8.7	17	271	73	19	28
11	6.5	e6.1	e5.6	e4.3	e3.9	e4.2	e12	15	284	58	18	21
12	7.2	e6.0	e5.5	e4.5	e3.9	e4.4	e15	18	286	54	18	18
13	5.5	e6.0	e5.7	e4.5	e4.0	e4.5	18	24	280	50	17	17
14	5.7	e6.2	e5.8	e4.7	e4.2	e4.6	18	32	284	61	16	16
15	7.1	e6.0	e6.0	e4.6	e4.4	e4.4	20	42	300	48	15	15
16	6.3	e5.7	e5.9	e4.3	e4.5	e4.1	20	55	297	46	20	14
17	5.4	e6.3	e5.9	e4.5	e4.5	e4.4	e19	84	291	49	34	14
18	5.4	e6.9	e5.9	e4.7	e4.5	e4.5	16	98	296	43	35	15
19	5.3	e6.9	e5.8	e4.9	e4.5	e4.3	e15	99	299	41	24	14
20	5.0	7.2	e5.4	e4.9	e4.7	e4.4	e15	93	297	40	19	14
21	5.0	6.7	e5.4	e4.8	e4.5	e5.0	15	113	279	50	17	13
22	5.1	e6.5	e5.4	e4.7	e4.8	e4.8	16	145	271	37	17	13
23	6.6	e6.8	e5.2	e4.6	e4.5	e4.6	15	196	269	34	23	13
24	5.8	6.8	e4.8	e4.5	e4.5	e4.6	e13	232	255	43	26	12
25	5.5	6.7	e4.6	e4.4	e4.7	e5.0	e17	253	237	33	24	12
26	5.9	e6.0	e4.6	e4.2	e4.4	e5.0	21	270	222	35	21	12
27	5.8	6.4	e4.3	e4.3	e4.3	e4.4	22	325	218	33	19	11
28	5.4	6.3	e4.4	e4.5	e4.3	e4.2	22	375	216	41	18	11
29	5.3	6.7	e4.4	e4.3	---	e4.8	23	403	214	30	16	11
30	5.3	7.1	e4.5	e4.1	---	e5.2	22	416	207	27	19	18
31	e5.9	---	e4.3	e4.3	---	e6.3	---	425	---	25	18	---
TOTAL	198.2	185.3	178.2	136.7	123.0	140.2	422.3	3,895	8,378	2,267	666	463
MEAN	6.39	6.18	5.75	4.41	4.39	4.52	14.1	126	279	73.1	21.5	15.4
MAX	8.9	7.2	7.9	4.9	5.0	6.3	23	425	443	196	35	28
MIN	5.0	5.1	4.3	3.9	3.9	4.0	6.1	15	207	25	15	11
AC-FT	393	368	353	271	244	278	838	7,730	16,620	4,500	1,320	918
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 2003, BY WATER YEAR (WY)
MEAN	12.2	9.53	8.01	6.68	6.09	6.53	11.7	64.0	202	102	26.7	15.9
MAX	33.5	20.6	15.5	13.4	13.6	17.9	26.0	155	378	320	75.5	40.9
(WY)	(1996)	(1998)	(1996)	(1996)	(1996)	(1996)	(1996)	(1996)	(1997)	(1995)	(1983)	(1984)
MIN	6.20	4.90	3.87	3.43	3.47	3.21	5.29	21.3	29.5	9.27	4.89	5.70
(WY)	(1980)	(1990)	(1975)	(1975)	(1975)	(1980)	(1973)	(1975)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1966 - 2003
ANNUAL TOTAL	3,691.4	17,052.9
ANNUAL MEAN	10.1	46.7	39.3
HIGHEST ANNUAL MEAN			71.3 1984
LOWEST ANNUAL MEAN			10.8 2002
HIGHEST DAILY MEAN	80 Jun 3	443 Jun 1	555 Jul 12, 1995
LOWEST DAILY MEAN	3.5 Aug 19	e3.9 Jan 6	2.7 Apr 5, 1977
ANNUAL SEVEN-DAY MINIMUM	3.6 Aug 23	e4.0 Feb 8	2.8 Mar 31, 1977
MAXIMUM PEAK FLOW		520 May 31	751 Jun 17, 1995
MAXIMUM PEAK STAGE		8.20 May 31	a6.94 Jun 17, 1995
ANNUAL RUNOFF (AC-FT)	7,320	33,820	28,480
10 PERCENT EXCEEDS	19	215	116
50 PERCENT EXCEEDS	6.6	7.4	11
90 PERCENT EXCEEDS	4.9	4.3	5.0

e Estimated. a Maximum gage height, 8.20 ft, May 31, 2003, present site and datum.