ROARING FORK RIVER BASIN

09074000 HUNTER CREEK NEAR ASPEN, CO

LOCATION.--Lat 39°12'21", long 106°47'49", Pitkin County, Hydrologic Unit 14010004, on right bank 280 ft upstream from headgate of Red Mountain ditch, 1.5 mi upstream from mouth, and 1.5 mi northeast of Aspen.

DRAINAGE AREA.--41.1 mi2.

PERIOD OF RECORD.--June 1950 to September 1956, September 1969 to current year. Statistical summary computed for 1980 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09074000

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 8,610 ft above NGVD of 1929, from topographic map. Prior to Sept. 1, 1969, at site 220 ft downstream, at different datum, Sept. 1, 1969 to July 10, 1991 at datum 1.0 ft lower.

REMARKS.--Records fair except for estimated daily discharges, which are poor. Transmountain diversion upstream from station to Charles H. Boustead tunnel by feeder conduit. Several small diversions upstream from station for irrigation of hay meadows upstream and downstream from station. 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	22	9.5	e7.0	5.2	4.3	3.9	7.1	29	567	46	19	13
2	18	9.2	e6.6	5.0	4.4	3.9	7.8	26	422	44	18	11
3	18	e7.8	e6.4	5.0	4.3	3.9	7.3	25	355	41	17	10
4	17	e7.8	e6.0	5.1	4.3	3.9	e7.1	26	324	40	19	11
5	15	e7.6	e6.4	5.1	4.3	3.8	e6.9	23	248	39	16	11
6	15	e7.0	e6.0	5.0	4.3	3.9	e6.9	21	77	38	15	13
7	15	e7.4	e5.8	4.9	3.9	4.0	e6.8	20	74	36	14	22
8	15	e7.6	e5.6	4.9	3.9	4.0	e6.4	21	68	35	17	24
9	14	e10	e5.0	5.0	3.8	4.0	e7.6	20	76	34	14	25
10	13	e8.8	e4.6	5.1	3.7	4.2	9.8	20	101	33	13	27
11	12	e8.2	e4.8	5.1	3.7	4.5	12	19	67	32	13	27
12	12	e7.4	e5.8	4.8	3.8	4.7	13	24	63	31	16	26
13	10	e8.0	e6.2	4.7	4.0	5.1	15	37	81	31	e16	25
14	9.6	e7.8	e5.4	4.8	4.1	5.6	19	43	66	30	e15	23
15	8.8	e7.5	e5.8	4.8	4.0	5.6	21	56	63	30	e15	20
16	9.1	e6.8	e5.6	4.5	4.0	5.6	20	70	62	30	14	18
17	9.1	e7.2	e5.8	4.5	4.0	5.3	20	87	60	30	18	17
18	8.7	e7.2	e5.8	4.5	4.1	5.1	19	84	58	29	19	15
19	8.2	e6.8	e5.0	4.5	3.8	e4.9	17	84	58	29	18	15
20	7.7	e7.0	5.7	4.4	3.9	4.6	16	83	59	28	14	14
21	7.8	e7.0	5.8	4.3	4.0	3.6	16	84	56	28	12	13
22	7.8	e7.2	5.5	4.3	3.9	3.5	18	93	53	27	12	12
23	9.8	e7.4	5.3	4.3	4.0	4.8	17	110	52	26	17	12
24	8.7	e7.0	5.1	4.3	4.0	6.2	16	121	51	26	14	11
25	8.7	e7.2	5.1	4.2	4.0	5.8	16	124	50	25	13	9.9
26	8.4	e6.0	4.9	4.1	4.0	5.6	23	140	49	23	16	9.7
27	10	e5.4	4.9	4.1	3.9	e5.6	28	290	48	23	17	10
28	8.8	e6.0	5.0	4.1	3.9	e5.4	30	496	48	24	16	9.7
29	7.7	e6.8	5.1	4.2	---	e5.2	33	571	47	26	14	9.0
30	e7.5	e6.6	5.0	4.2	---	5.6	34	592	47	23	14	7.4
31	e8.8	---	5.0	4.3	---	6.6	---	550	---	20	16	---
TOTAL	351.2	223.2	172.0	143.3	112.3	148.4	476.7	3,989	3,450	957	481	470.7
MEAN	11.3	7.44	5.55	4.62	4.01	4.79	15.9	129	115	30.9	15.5	15.7
MAX	22	10	7.0	5.2	4.4	6.6	34	592	567	46	19	27
MIN	7.5	5.4	4.6	4.1	3.7	3.5	6.4	19	47	20	12	7.4
AC-FT	697	443	341	284	223	294	946	7,910	6,840	1,900	954	934
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1980 - 2003, BY WATER YEAR (WY)
MEAN	16.0	10.4	6.85	5.79	5.35	6.43	20.0	122	192	73.3	30.7	19.0
MAX	32.7	25.1	14.4	11.3	9.21	11.3	40.8	287	462	271	74.4	42.1
(WY)	(1985)	(1985)	(1985)	(1987)	(1985)	(1997)	(1989)	(1996)	(1996)	(1995)	(1995)	(1999)
MIN	5.35	3.32	2.33	2.74	2.89	3.66	7.68	44.8	36.3	11.1	4.90	7.03
(WY)	(1990)	(1990)	(1981)	(1981)	(1990)	(1990)	(1983)	(1995)	(2002)	(2002)	(2002)	(1980)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1980 - 2003
ANNUAL TOTAL	5,399.9	10,974.8
ANNUAL MEAN	14.8	30.1	a42.4
HIGHEST ANNUAL MEAN			81.2 1996
LOWEST ANNUAL MEAN			14.3 2002
HIGHEST DAILY MEAN	78 May 12	592 May 30	786 Jun 6, 1988
LOWEST DAILY MEAN	e2.1 Jan 31	3.5 Mar 22	e1.8 Dec 20, 1980
ANNUAL SEVEN-DAY MINIMUM	2.6 Jan 28	3.8 Feb 7	1.9 Dec 20, 1980
MAXIMUM PEAK FLOW		884 May 29	b1,170 Jun 8, 1985
MAXIMUM PEAK STAGE		3.16 May 29	c2.33 Jun 8, 1985
ANNUAL RUNOFF (AC-FT)	10,710	21,770	30,730
10 PERCENT EXCEEDS	42	57	108
50 PERCENT EXCEEDS	7.4	10	13
90 PERCENT EXCEEDS	3.0	4.2	4.6

e Estimated. a Average discharge for 16 years (water years 1951-1956, 1970-1979), 50.7 ft3/s; 36,730 acre-ft/yr, prior to diversion through Charles H. Boustead tunnel. b From rating curve extended above 300 ft3/s. c Maximum gage height for period of record, 4.30 ft, Nov 30, 1984, backwater from ice.