EAGLE RIVER BASIN

09067000 BEAVER CREEK AT AVON, CO

LOCATION.--Lat 39°37'47", long 106°31'20", in NE14SW14 sec.12, T.5 S., R.82 W., Eagle County, Hydrologic Unit 14010003, on left bank at Avon, 550 ft upstream from U.S. Highway 6 and 24, and 700 ft upstream from mouth.

DRAINAGE AREA.--14.8 mi2.

PERIOD OF RECORD.--January to December 1911, January 1912 to September 1914 (gage heights and discharge measurements only), May 1974 to February 1988, October 1988 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09067000

REVISED RECORDS.--WDR CO-88-2: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 7,453 ft above NGVD of 1929, from topographic map. Prior to May 1, 1974, nonrecording gage near present site, at different datum.

REMARKS.--Records good except for estimated daily discharges, and the period Apr. 10 to Sept. 30, which are poor. Diversions upstream from station for irrigation upstream and downstream from station. Slight natural regulation by several small lakes in headwaters. 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	4.5	3.9	e2.6	e2.1	e2.1	e2.5	3.8	9.7	e145	23	5.3	e4.4
2	4.1	3.8	2.6	e2.1	e2.1	e2.4	4.2	6.6	e109	20	5.1	e3.9
3	4.7	3.5	2.6	e2.1	e2.1	e2.6	3.9	7.9	e92	19	5.2	e3.5
4	4.3	e3.4	e2.6	e2.1	e2.1	e2.5	3.4	10	e83	19	4.7	e3.2
5	4.4	3.3	2.6	e2.1	e2.1	e2.6	2.9	7.1	e70	17	4.9	e3.0
6	4.2	e3.1	2.6	e2.1	e2.1	e2.5	3.1	5.1	e59	16	5.5	e3.5
7	4.2	e3.0	e2.5	e2.1	e2.1	e2.7	3.0	4.9	e56	15	5.4	e4.3
8	4.0	3.0	e2.5	e2.1	e2.2	e2.8	3.3	5.0	e50	14	5.8	e5.4
9	3.9	3.5	e2.5	2.1	e2.2	2.9	3.2	5.2	e54	14	5.7	e6.7
10	3.8	3.3	e2.5	2.1	e2.2	3.0	4.3	5.8	58	12	4.9	e7.5
11	3.8	3.2	e2.5	2.1	e2.2	3.1	5.9	4.5	60	11	5.1	7.4
12	4.2	e3.0	e2.4	2.1	e2.2	3.2	6.4	7.7	57	11	5.1	6.6
13	3.6	e3.0	e2.3	2.1	e2.2	3.3	7.3	15	59	11	5.4	6.0
14	3.5	3.1	2.3	2.1	e2.3	3.4	8.7	25	53	9.7	4.7	5.9
15	3.3	3.1	2.3	2.2	e2.2	3.5	9.1	29	60	9.6	3.8	5.4
16	3.2	e2.9	2.2	e2.2	e2.3	3.4	7.5	43	60	9.8	4.5	4.3
17	2.8	e3.0	2.3	e2.2	e2.4	3.8	6.7	56	58	8.7	7.8	4.0
18	2.8	3.0	2.3	e2.2	e2.3	3.8	6.8	60	56	8.8	10	4.3
19	2.7	e2.8	2.3	e2.2	e2.4	3.4	5.9	60	52	8.4	8.2	3.7
20	2.7	e2.8	2.2	e2.2	e2.5	3.3	5.9	52	56	7.8	6.2	3.7
21	2.7	e2.8	2.3	e2.2	e2.4	3.5	7.7	57	49	7.6	5.2	3.5
22	2.8	e2.8	2.3	e2.1	e2.4	3.7	10	67	44	7.2	5.2	3.2
23	3.6	e2.8	2.2	e2.1	e2.4	4.1	10	80	42	7.1	4.5	3.5
24	3.4	2.7	2.2	e2.1	e2.4	4.2	9.6	85	39	6.4	4.4	3.2
25	3.2	e2.7	2.3	e2.1	e2.4	3.6	11	e92	36	6.5	e4.5	3.2
26	3.0	e2.6	2.2	e2.1	e2.5	3.5	10	e95	33	7.8	e4.5	3.3
27	3.5	e2.6	2.2	e2.1	e2.5	3.7	12	e105	33	7.6	e4.4	2.7
28	3.2	e2.6	2.2	e2.1	e2.5	3.6	14	e130	33	7.5	e5.0	2.9
29	2.7	e2.6	2.2	e2.1	---	4.1	15	e138	28	6.7	e4.5	2.5
30	3.2	e2.6	e2.1	e2.1	---	3.1	15	e130	26	6.5	e4.3	2.6
31	3.7	---	2.1	e2.1	---	3.4	---	e116	---	5.9	e4.9	---
TOTAL	109.7	90.5	73.0	65.8	63.8	101.2	219.6	1,514.5	1,710	341.6	164.7	127.3
MEAN	3.54	3.02	2.35	2.12	2.28	3.26	7.32	48.9	57.0	11.0	5.31	4.24
MAX	4.7	3.9	2.6	2.2	2.5	4.2	15	138	145	23	10	7.5
MIN	2.7	2.6	2.1	2.1	2.1	2.4	2.9	4.5	26	5.9	3.8	2.5
AC-FT	218	180	145	131	127	201	436	3,000	3,390	678	327	252
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1974 - 2003, BY WATER YEAR (WY)
MEAN	4.46	3.61	2.97	2.51	2.40	2.99	6.48	29.8	60.3	27.6	9.65	5.64
MAX	8.42	5.78	5.01	4.17	3.99	4.71	11.2	60.3	114	79.5	25.6	10.6
(WY)	(1998)	(1997)	(1984)	(1986)	(1986)	(1997)	(1996)	(2000)	(1983)	(1983)	(1984)	(1984)
MIN	2.28	2.07	1.65	1.44	1.51	1.49	2.48	11.5	17.5	4.69	2.34	1.41
(WY)	(1981)	(1980)	(1995)	(1981)	(1977)	(1977)	(1975)	(1977)	(2002)	(2002)	(1977)	(1977)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1974 - 2003
ANNUAL TOTAL	2,136.9	4,581.7
ANNUAL MEAN	5.85	12.6	13.2
HIGHEST ANNUAL MEAN			22.7 1984
LOWEST ANNUAL MEAN			4.94 1977
HIGHEST DAILY MEAN	36 Jun 2	e145 Jun 1	242 Jun 27, 1983
LOWEST DAILY MEAN	1.7 Sep 6	e2.1 Dec 30	0.55 Sep 10, 1977
ANNUAL SEVEN-DAY MINIMUM	2.0 Sep 2	e2.1 Dec 30	0.75 Sep 5, 1977
MAXIMUM PEAK FLOW		unknown	249 Jun 27, 1983
MAXIMUM PEAK STAGE		unknown	3.46 Jun 27, 1983
ANNUAL RUNOFF (AC-FT)	4,240	9,090	9,550
10 PERCENT EXCEEDS	13	46	39
50 PERCENT EXCEEDS	3.2	3.7	4.4
90 PERCENT EXCEEDS	2.3	2.2	2.1

e Estimated.