GREEN RIVER BASIN

09306242 CORRAL GULCH NEAR RANGELY, CO

LOCATION.--Lat 39°55'13", long 108°28'20", in SE14NW14 sec.35, T.1 S., R.99 W., Rio Blanco County, Hydrologic Unit 14050006, on left bank 5 ft downstream from Box Elder Gulch, 3.5 mi upstream from confluence with Stake Springs Draw, and 21 mi southeast of Rangely.

DRAINAGE AREA.--31.6 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--March 1974 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09306242

GAGE.--Water-stage recorder. Concrete V-notch control since July 20, 1974. Elevation of gage is 6,580 ft above NGVD of 1929, from topographic map.

REMARKS.--Records fair except for estimated daily discharges, which are poor. No diversions upstream from station.

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	0.37	e0.37	e0.33	0.34	0.62	0.41	0.14	0.11	0.31	0.75	0.64	0.57
2	e0.60	e0.37	e0.33	0.33	0.38	0.41	0.14	0.11	0.33	0.76	0.66	0.56
3	e0.40	e0.36	e0.33	0.34	0.35	0.41	0.14	0.11	0.34	0.77	0.65	0.58
4	e0.37	e0.36	e0.33	0.36	0.36	0.41	0.14	0.11	0.37	0.75	0.64	0.53
5	e0.37	e0.35	e0.33	0.37	0.36	0.41	0.14	0.12	0.38	0.75	0.61	0.49
6	e0.37	e0.35	e0.33	0.37	0.37	0.42	0.14	0.11	0.40	0.75	0.59	0.49
7	e0.37	e0.35	e0.33	0.37	0.37	1.6	0.14	0.11	0.43	0.74	0.57	0.49
8	e0.37	e0.37	e0.33	0.38	0.37	1.1	0.14	0.13	0.44	0.72	0.57	0.48
9	e0.37	e0.37	e0.35	0.38	0.37	1.8	0.14	0.13	0.45	0.72	0.58	0.44
10	e0.37	e0.37	e0.34	0.37	0.37	4.1	0.14	0.13	0.40	0.71	0.59	0.58
11	e0.37	e0.37	0.33	0.37	0.37	4.7	0.14	0.14	0.38	0.71	0.60	0.49
12	e0.37	e0.37	0.33	0.38	0.37	2.4	0.13	0.13	0.40	0.69	0.64	0.48
13	e0.37	e0.37	0.33	0.40	0.37	1.4	0.13	0.13	0.39	0.71	0.57	0.47
14	e0.37	e0.37	0.33	0.39	2.4	0.62	0.13	0.14	0.39	0.70	0.56	0.48
15	e0.37	e0.37	0.33	0.39	0.95	0.36	0.14	0.15	0.42	0.68	0.56	0.49
16	e0.37	e0.37	0.33	0.38	0.76	0.18	0.10	0.15	0.47	0.68	0.55	0.48
17	e0.37	e0.37	0.34	0.39	0.51	0.16	0.10	0.14	0.51	0.67	0.55	0.48
18	e0.37	e0.37	0.33	0.37	0.45	0.14	0.10	0.15	0.53	0.68	0.55	0.50
19	e0.37	e0.37	0.33	0.37	0.44	0.14	0.11	0.15	0.55	0.70	0.55	0.49
20	e0.37	e0.37	0.33	0.37	0.44	0.14	0.10	0.15	0.55	0.71	0.55	0.45
21	e0.37	e0.37	0.33	0.37	0.44	0.14	0.10	0.16	0.56	0.70	0.63	0.44
22	e0.37	e0.37	0.33	0.37	0.44	0.14	0.10	0.16	0.56	0.67	0.64	0.44
23	e0.37	e0.37	0.33	0.40	0.44	0.14	0.11	0.16	0.57	0.64	0.64	0.44
24	e0.37	e0.36	0.33	0.41	0.44	0.14	0.11	0.18	0.59	0.64	0.62	0.43
25	e0.37	e0.35	0.33	0.41	0.44	0.14	0.10	0.21	0.57	0.64	0.59	0.42
26	e0.37	e0.39	0.33	0.41	0.44	0.14	0.10	0.23	0.59	0.67	0.57	0.41
27	e0.37	e0.38	0.33	0.42	0.44	0.14	0.10	0.25	0.65	0.64	0.54	0.41
28	e0.37	e0.38	0.33	0.44	0.42	0.14	0.11	0.23	0.66	0.63	0.56	0.41
29	e0.37	e0.37	0.33	0.44	---	0.14	0.11	0.24	0.70	0.61	0.57	0.41
30	e0.37	e0.35	0.33	0.44	---	0.14	0.11	0.28	0.77	0.63	0.57	0.41
31	e0.37	---	0.33	0.41	---	0.14	---	0.30	---	0.64	0.55	---
TOTAL	11.73	11.01	10.27	11.94	14.48	22.85	3.63	5.00	14.66	21.46	18.26	14.24
MEAN	0.38	0.37	0.33	0.39	0.52	0.74	0.12	0.16	0.49	0.69	0.59	0.47
MAX	0.60	0.39	0.35	0.44	2.4	4.7	0.14	0.30	0.77	0.77	0.66	0.58
MIN	0.37	0.35	0.33	0.33	0.35	0.14	0.10	0.11	0.31	0.61	0.54	0.41
AC-FT	23	22	20	24	29	45	7.2	9.9	29	43	36	28
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1974 - 2003, BY WATER YEAR (WY)
MEAN	1.04	0.87	0.79	0.75	0.82	1.23	2.54	6.90	4.18	1.84	1.50	1.25
MAX	2.88	1.99	2.07	2.40	2.22	4.99	14.9	41.7	33.4	8.98	5.56	3.39
(WY)	(1979)	(1984)	(1979)	(1979)	(1979)	(1998)	(1998)	(1984)	(1983)	(1984)	(1984)	(1978)
MIN	0.30	0.25	0.27	0.30	0.30	0.31	0.12	0.15	0.094	0.17	0.26	0.32
(WY)	(1991)	(1993)	(1992)	(1977)	(1993)	(1977)	(2003)	(1992)	(1992)	(1992)	(2002)	(1991)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1974 - 2003
ANNUAL TOTAL	170.54	159.53
ANNUAL MEAN	0.47	0.44	2.02
HIGHEST ANNUAL MEAN			7.75 1984
LOWEST ANNUAL MEAN			0.27 1992
HIGHEST DAILY MEAN	2.0 Sep 7	4.7 Mar 11	207 Jun 1, 1983
LOWEST DAILY MEAN	0.13 May 30	0.10 Apr 16	a0.06 Apr 10, 1974
ANNUAL SEVEN-DAY MINIMUM	0.17 May 27	0.10 Apr 16	0.07 Apr 10, 1974
MAXIMUM PEAK FLOW		19 Mar 11	b1,780 Aug 18, 1984
MAXIMUM PEAK STAGE		2.51 Mar 11	6.12 Aug 18, 1984
ANNUAL RUNOFF (AC-FT)	338	316	1,460
10 PERCENT EXCEEDS	0.78	0.66	3.9
50 PERCENT EXCEEDS	0.37	0.37	0.79
90 PERCENT EXCEEDS	0.22	0.14	0.31

e Estimated. a Also occurred Apr 11-14, 1974. b From rating curve extended above 70 ft3/s, on basis of slope-area measurements at gage heights, 3.89 ft, 4.08 ft, and 6.12 ft.