SAN JUAN RIVER BASIN

09372000 McELMO CREEK NEAR COLORADO-UTAH STATE LINE

LOCATION.--Lat 37°19'27", long 109°00'54", in NE14 sec.2, T.35 N., R.20 W., Montezuma County, Hydrologic Unit 14080202, on right bank 1.5 mi upstream from Colorado-Utah State line, 2.0 mi upstream from Yellowjacket Creek, and 2.0 mi west of former town of McElmo.

DRAINAGE AREA.--346 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--March 1951 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09372000

REVISED RECORDS.--WSP 1925: 1951-52 (M), 1957 (M). WRD CO-1972: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 4,890 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions for irrigation of about 1,780 acres upstream from station. One diversion upstream from station for irrigation of about 60 acres downstream from station. Part of flow is return water from irrigated lands of Montezuma Irrigation District (water imported from Dolores River basin).

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	9.7	11	e16	e15	e12	25	12	0.54	3.3	4.5	20	40
2	10	9.4	19	e15	13	19	13	0.48	5.5	6.6	24	36
3	17	10	19	e15	13	18	13	0.46	5.4	6.3	23	33
4	32	12	18	e14	12	18	13	0.65	2.4	7.2	26	31
5	21	12	e15	e14	10	19	15	1.1	2.6	4.5	23	30
6	16	12	e15	e14	10	19	15	0.72	4.3	5.3	20	29
7	14	11	e14	e14	9.9	18	14	0.80	3.8	5.3	15	40
8	11	11	e14	14	e11	19	13	1.9	3.9	7.0	15	38
9	11	18	e14	e14	e11	23	12	2.4	3.2	5.6	16	301
10	10	33	e13	e14	e11	25	11	2.8	3.0	5.0	15	e1,010
11	10	28	e14	e14	e11	26	10	2.6	4.0	4.2	13	270
12	9.9	23	e14	e15	e11	26	10	2.5	3.4	5.7	14	123
13	7.7	22	e15	e14	16	24	8.7	1.7	4.0	4.5	14	88
14	5.1	26	e15	e14	26	21	7.1	1.3	7.1	4.7	44	62
15	4.7	25	e16	e14	24	19	7.2	2.0	14	4.0	76	52
16	6.0	26	15	e13	16	19	6.8	5.7	9.4	7.6	70	45
17	5.7	26	20	e12	14	45	5.3	5.2	6.2	6.0	52	40
18	9.0	25	e17	e12	14	66	5.1	2.1	7.3	4.6	50	31
19	8.9	22	e14	e11	17	41	3.3	1.8	7.5	3.8	42	24
20	6.6	19	e14	e12	16	29	4.0	1.2	11	4.3	33	24
21	6.7	18	e15	e12	14	25	2.5	0.76	6.1	3.6	29	26
22	4.5	18	e16	e12	13	26	2.4	2.8	4.9	9.3	35	27
23	7.7	18	e16	e12	12	20	2.3	3.3	3.8	12	39	28
24	17	18	e15	e12	11	18	2.1	2.9	3.9	8.2	58	28
25	12	18	e15	e12	12	17	1.8	3.3	2.6	8.7	64	28
26	12	17	15	e12	17	14	1.2	4.4	3.5	6.7	58	28
27	17	e15	e15	e12	23	17	1.2	3.1	4.9	7.3	46	29
28	18	e14	e16	e12	28	17	1.0	2.4	6.1	9.5	43	29
29	17	e15	e17	e12	---	16	0.80	1.9	9.6	33	43	28
30	17	e15	e16	e12	---	15	0.66	3.6	3.5	23	47	28
31	13	---	e15	e12	---	14	---	4.9	---	24	48	---
TOTAL	367.2	547.4	482	406	407.9	718	214.46	71.31	160.2	252.0	1,115	2,626
MEAN	11.8	18.2	15.5	13.1	14.6	23.2	7.15	2.30	5.34	8.13	36.0	87.5
MAX	32	33	20	15	28	66	15	5.7	14	33	76	1,010
MIN	4.5	9.4	13	11	9.9	14	0.66	0.46	2.4	3.6	13	24
AC-FT	728	1,090	956	805	809	1,420	425	141	318	500	2,210	5,210
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1951 - 2003, BY WATER YEAR (WY)
MEAN	59.8	50.5	38.8	33.0	47.0	56.4	39.2	45.5	53.5	52.1	64.7	61.9
MAX	161	122	95.4	68.4	192	197	148	108	105	132	160	226
(WY)	(1973)	(1988)	(1966)	(1969)	(1993)	(1973)	(1973)	(1992)	(1969)	(1957)	(1967)	(1986)
MIN	1.84	14.0	13.5	13.1	14.6	15.7	2.23	2.30	2.60	1.19	2.45	0.43
(WY)	(1957)	(1957)	(1978)	(2003)	(2003)	(1951)	(1977)	(2003)	(1977)	(1951)	(2002)	(1956)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1951 - 2003
ANNUAL TOTAL	4,048.84	7,367.47
ANNUAL MEAN	11.1	20.2	50.6
HIGHEST ANNUAL MEAN			94.6 1973
LOWEST ANNUAL MEAN			16.2 1977
HIGHEST DAILY MEAN	67 Sep 11	e1,010 Sep 10	1,200 Aug 7, 1967
LOWEST DAILY MEAN	0.96 Jun 25	0.46 May 3	0.08 Sep 9, 1977
ANNUAL SEVEN-DAY MINIMUM	1.1 Jun 21	0.66 Apr 28	0.14 Sep 21, 1956
MAXIMUM PEAK FLOW		1,670 Sep 9	a3,040 Aug 7, 1967
MAXIMUM PEAK STAGE		7.64 Sep 9	b,c7.58 Aug 7, 1967
ANNUAL RUNOFF (AC-FT)	8,030	14,610	36,670
10 PERCENT EXCEEDS	21	32	97
50 PERCENT EXCEEDS	11	14	38
90 PERCENT EXCEEDS	1.4	3.0	12

e Estimated. a From rating curve extended above 2,100 ft3/s. b From floodmark in gage well. c Maximum gage height, 8.21 ft, Sep 21, 1997.