ARKANSAS RIVER BASIN

07116500 HUERFANO RIVER NEAR BOONE, CO

LOCATION.--Lat 38°13'30", long 104°15'37", in NE14NE14 sec.18, T.21 S., R.61 W., Pueblo County, Hydrologic Unit 11020006, at right upstream end of bridge on U.S. Highway 50, 0.8 mi upstream from mouth, and 1.6 mi south of Boone.

DRAINAGE AREA.--1,875 mi2.

PERIOD OF RECORD.--January 1922 to September 1925 (monthly and annual discharge only, published in WSP 1311 as "near Nepesta"), October 1979 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07116500.

GAGE.--Water-stage recorder with satellite telemetry and crest-stage gages. Datum of gage is 4,443.74 ft above NGVD of 1929. Jan. 1922 to Sept. 1925, at different datum.

REMARKS.--No estimated daily discharges. Records fair. Natural flow of stream affected by storage reservoirs, diversions for irrigation, ground-water withdrawals, and return flows from irrigated areas. Several measurements of water temperature and specific conductance 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	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	4.1	0.00	0.00	0.00
2	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	6.4	0.00	0.00	0.00
3	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	5.9	0.00	0.00	0.00
4	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.9	0.00	0.00	0.00
5	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	8.3	0.00	0.00	0.00
6	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	20	0.00	0.00	0.00
7	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	13	0.00	0.00	0.00
8	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	14	0.00	0.00	0.00
9	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	13	0.00	0.00	0.00
10	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	6.8	0.00	0.00	0.00
11	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.28	0.00	0.00	0.00
12	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
13	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
14	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	3.9	0.00	0.00	0.00
15	0.00	0.00	0.00	0.00	0.00	0.00	0.00	4.6	8.0	0.00	0.00	0.00
16	0.00	0.00	0.00	0.00	0.00	0.00	0.00	7.4	8.0	0.00	0.00	0.00
17	0.00	0.00	0.00	0.00	0.00	1.7	0.00	2.4	5.1	0.00	0.00	0.00
18	0.00	0.00	0.00	0.00	0.00	0.17	0.00	1.2	4.6	0.00	0.00	0.00
19	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.18	19	0.00	0.00	0.00
20	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	22	0.00	0.00	0.00
21	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	17	0.00	0.00	0.00
22	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	8.2	0.00	0.00	0.00
23	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	8.4	0.00	0.00	0.00
24	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	5.2	0.00	0.00	0.00
25	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	3.9	0.00	0.00	0.00
26	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.46	0.68	0.00	0.00	0.00
27	0.00	0.00	0.00	0.00	0.00	0.00	0.00	1.2	0.00	0.00	0.00	0.00
28	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
29	0.00	0.00	0.00	0.00	---	0.00	0.00	0.63	0.00	0.00	0.00	0.00
30	0.00	0.00	0.00	0.00	---	0.00	0.00	3.1	0.00	0.00	0.00	0.00
31	0.00	---	0.00	0.00	---	0.00	---	16	---	0.00	0.00	---
TOTAL	0.00	0.00	0.00	0.00	0.00	1.87	0.01	37.17	208.66	0.00	0.00	0.00
MEAN	0.000	0.000	0.000	0.000	0.000	0.060	0.000	1.20	6.96	0.000	0.000	0.000
MAX	0.00	0.00	0.00	0.00	0.00	1.7	0.01	16	22	0.00	0.00	0.00
MIN	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
AC-FT	0.00	0.00	0.00	0.00	0.00	3.7	0.02	74	414	0.00	0.00	0.00
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1980 - 2003, BY WATER YEAR (WY)
MEAN	9.72	15.6	14.9	19.7	22.8	20.5	31.3	144	92.3	23.2	26.9	5.83
MAX	46.7	46.0	40.2	65.1	65.2	129	224	1,113	667	226	254	26.5
(WY)	(1985)	(1986)	(1998)	(1984)	(1998)	(1984)	(1998)	(1987)	(1983)	(1995)	(1981)	(1995)
MIN	0.000	0.000	0.000	0.000	0.000	0.060	0.000	0.47	0.000	0.000	0.000	0.000
(WY)	(1990)	(1990)	(1990)	(1990)	(2003)	(2003)	(2003)	(2002)	(2002)	(1989)	(2002)	(1980)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1980 - 2003
ANNUAL TOTAL	254.69	247.71
ANNUAL MEAN	0.70	0.68	35.7
HIGHEST ANNUAL MEAN			153 1987
LOWEST ANNUAL MEAN			0.68 2003
HIGHEST DAILY MEAN	21 Mar 17	22 Jun 20	2,900 Aug 12, 1981
LOWEST DAILY MEAN	0.00 May 30	0.00 Oct 1	a0.00 Oct 1, 1979
ANNUAL SEVEN-DAY MINIMUM	0.00 May 30	0.00 Oct 1	0.00 Oct 1, 1979
MAXIMUM PEAK FLOW		82 May 15	b8,030 Aug 12, 1981
MAXIMUM PEAK STAGE		8.44 May 15	c10.90 Aug 12, 1981
ANNUAL RUNOFF (AC-FT)	505	491	25,830
10 PERCENT EXCEEDS	2.0	0.07	57
50 PERCENT EXCEEDS	0.00	0.00	6.0
90 PERCENT EXCEEDS	0.00	0.00	0.00

a No flow on many days during most years. b From rating curve extended above 1,130 ft3/s. Maximum discharge for period of record, 19,400 ft3/s, Aug 1, 1923, from slope-area measurement of peak flow, gage height, 9.4 ft, datum then in use. c From flood marks. Maximum gage height for period of record, 11.75 ft, Jul 19, 1995.