SAN JUAN RIVER BASIN

09371492 MUD CREEK AT HIGHWAY 32, NEAR CORTEZ, CO

LOCATION.--Lat 37°18'46", long 108°39'38", in SW14SW14 sec.6, T.35 N., R.16 W., Montezuma County, Hydrologic Unit 14080202, on left bank 1 mi upstream from mouth and 4.5 mi southwest of Cortez.

DRAINAGE AREA.--33.6 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1981 to September 1986, August 1993 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09371492

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,765 ft above NGVD of 1929, from topographic map. Prior to Aug. 25, 1993, gage at present site and datum.

REMARKS.--Records good except for estimated daily discharges and discharges above 40 ft3/s, which are poor. Some small diversions upstream from station for irrigation. Most of flow is from diversion of water from Dolores River through Dolores Project and Montezuma Valley Irrigation Company.

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	0.83	0.81	1.1	1.1	e0.95	2.1	0.92	0.65	9.8	12	12	21
2	1.4	0.81	1.0	0.91	1.0	2.0	0.90	0.67	11	13	17	20
3	3.3	0.70	1.0	0.93	e1.0	1.8	0.88	0.71	11	13	16	19
4	1.5	0.77	0.92	0.97	e0.99	1.6	0.84	0.77	11	12	14	20
5	0.95	0.76	0.81	1.1	e0.95	1.6	0.88	0.84	11	11	12	20
6	0.79	0.70	0.81	1.1	e0.90	1.6	0.92	0.83	9.4	11	10	22
7	0.74	0.75	0.89	1.2	0.85	1.5	0.89	1.1	9.5	11	11	21
8	0.75	0.85	0.82	e1.1	e0.88	1.8	0.73	2.7	11	11	11	21
9	0.67	1.8	0.84	1.0	0.75	1.6	0.75	4.5	10	11	9.6	64
10	0.68	1.9	0.93	1.1	0.61	1.4	0.79	4.0	9.8	11	8.7	77
11	0.70	1.4	0.87	e1.1	0.59	1.4	0.83	4.5	11	10	7.7	22
12	0.83	1.1	0.87	e1.0	0.67	1.4	0.81	4.7	10	10	9.3	8.6
13	0.82	1.2	e0.90	e1.0	3.2	1.2	0.78	4.7	11	9.1	12	22
14	0.73	1.0	e0.92	e1.0	8.0	1.0	0.75	7.6	15	9.5	10	21
15	0.66	0.87	0.95	e0.98	1.6	1.2	0.81	7.0	12	8.4	20	19
16	0.66	0.74	1.3	e0.97	1.1	1.9	0.81	7.0	12	9.8	22	17
17	0.67	0.77	1.5	e0.95	1.1	4.6	0.79	8.1	12	11	22	14
18	0.70	0.77	e1.8	e0.96	1.6	3.3	0.80	8.9	12	11	22	8.7
19	0.69	0.74	e1.3	e0.97	1.5	1.8	0.82	9.0	14	11	21	7.8
20	0.62	0.77	e0.98	e0.97	1.2	1.4	0.79	6.6	15	9.6	18	8.9
21	0.66	0.76	0.87	e0.94	1.0	1.7	0.71	6.2	14	10	16	9.4
22	0.69	0.80	e0.88	e0.93	0.82	1.3	0.77	6.4	13	17	16	10
23	0.95	0.81	0.81	e0.93	0.78	1.2	0.75	6.8	13	13	17	10
24	0.88	0.81	0.90	e0.93	0.99	1.3	0.75	6.5	13	11	21	10
25	0.81	0.81	0.88	e0.94	1.4	1.2	0.70	8.4	12	11	23	10
26	1.1	0.75	0.90	e0.94	2.5	1.3	0.69	8.0	14	11	21	11
27	2.0	0.69	e0.88	e0.95	2.3	1.2	0.68	7.3	13	9.9	20	10
28	1.0	0.69	0.84	e0.95	e2.2	1.5	0.72	7.7	20	11	20	12
29	1.2	0.73	1.1	e0.95	---	1.3	0.72	8.7	13	13	21	13
30	1.0	0.85	1.2	e0.94	---	0.74	0.68	8.6	12	12	21	13
31	0.87	---	1.00	e0.95	---	0.83	---	9.1	---	11	22	---
TOTAL	29.85	26.91	30.77	30.76	41.43	49.77	23.66	168.57	364.5	345.3	503.3	562.4
MEAN	0.96	0.90	0.99	0.99	1.48	1.61	0.79	5.44	12.2	11.1	16.2	18.7
MAX	3.3	1.9	1.8	1.2	8.0	4.6	0.92	9.1	20	17	23	77
MIN	0.62	0.69	0.81	0.91	0.59	0.74	0.68	0.65	9.4	8.4	7.7	7.8
AC-FT	59	53	61	61	82	99	47	334	723	685	998	1,120
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1982 - 2003, BY WATER YEAR (WY)
MEAN	7.95	2.88	2.40	2.06	2.63	3.00	2.68	9.42	13.5	14.5	15.1	13.1
MAX	17.5	5.94	6.00	3.86	7.99	10.3	5.60	13.1	18.1	18.0	21.5	20.1
(WY)	(1994)	(1994)	(1985)	(1997)	(1983)	(1983)	(1994)	(1982)	(1985)	(1986)	(1983)	(2001)
MIN	0.96	0.78	0.47	0.85	1.07	1.11	0.79	5.44	6.83	9.95	4.04	1.12
(WY)	(2003)	(2000)	(2000)	(2000)	(2002)	(1998)	(2003)	(2003)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1982 - 2003
ANNUAL TOTAL	1,106.97	2,177.22
ANNUAL MEAN	3.03	5.96	7.49
HIGHEST ANNUAL MEAN			9.47 1985
LOWEST ANNUAL MEAN			3.80 2002
HIGHEST DAILY MEAN	17 Aug 2	77 Sep 10	77 Sep 10, 2003
LOWEST DAILY MEAN	0.27 Aug 28	0.59 Feb 11	0.27 Aug 28, 2002
ANNUAL SEVEN-DAY MINIMUM	0.59 Aug 31	0.67 Oct 15	0.41 Dec 15, 1999
MAXIMUM PEAK FLOW		274 Sep 9	a598 Aug 24, 1982
MAXIMUM PEAK STAGE		5.68 Sep 9	8.53 Aug 24, 1982
ANNUAL RUNOFF (AC-FT)	2,200	4,320	5,430
10 PERCENT EXCEEDS	9.8	15	16
50 PERCENT EXCEEDS	1.1	1.4	4.5
90 PERCENT EXCEEDS	0.75	0.75	1.0

e Estimated. a From rating curve extended above 26 ft3/s, on basis of slope-area measurement of peak flow.