ARKANSAS RIVER BASIN

07121500 TIMPAS CREEK AT MOUTH NEAR SWINK, CO

LOCATION.--Lat 38°00'11", long 103°39'20", in NW14SW14 sec.35, T.23 S., R.56 W., Otero County, Hydrologic Unit 11020005, on right bank at downstream side of 23rd Rd. Bridge, 1.7 mi southwest of Swink, and 2.9 mi upstream from mouth.

DRAINAGE AREA.--496 mi2.

PERIOD OF RECORD.--January 1922 to September 1925, March 1968 to current year. Monthly discharge only for some periods, published in WSP 1311. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07121500

REVISED RECORDS.--WDR CO 76-1: 1975.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 4,120 ft above NGVD of 1929, from topographic map. Jan. 1922 to Sept. 1925 at several sites downstream at different datum. Mar. 1968 to May 29, 1975, at site 140 ft downstream at datum 0.13 ft lower. May 30, 1975 to Nov. 25, 1980, at site on left bank at same datum.

REMARKS.--No estimated daily discharges. Records good. Natural flow of stream affected by erosion-control and livestock-watering reservoirs, diversions for irrigation, ground-water withdrawals, and return flows from irrigated areas and from Catlin and Rocky Ford Highline Canals. 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.

EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge since at least 1922, 21,400 ft3/s, June 17, 1965, gage height unknown.

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	6.8	18	17	9.4	15	7.7	27	30	79	133	42	39
2	7.0	19	15	9.5	24	7.4	11	32	89	95	37	44
3	7.4	14	15	9.5	40	7.2	9.4	32	100	82	38	53
4	8.3	12	28	9.7	42	6.8	27	31	90	80	38	45
5	9.5	12	31	9.9	40	6.6	32	31	94	79	42	36
6	7.7	13	31	9.9	42	7.1	33	31	95	78	33	34
7	8.9	13	31	10	26	7.0	35	33	92	74	42	34
8	8.0	14	31	31	6.9	7.0	36	36	87	74	42	34
9	7.7	15	28	22	6.4	6.7	35	35	80	72	42	35
10	7.8	18	22	17	6.6	7.0	34	34	75	74	46	34
11	7.9	14	23	24	6.7	7.0	34	34	75	74	41	33
12	8.3	12	26	8.3	7.3	6.8	33	31	74	74	41	34
13	8.8	11	18	7.8	7.8	6.9	33	32	85	69	40	34
14	9.7	11	18	7.9	8.3	23	32	29	83	65	38	37
15	9.3	19	18	8.3	8.2	26	33	29	95	62	37	37
16	9.4	15	19	8.2	8.2	28	36	25	78	55	33	44
17	9.2	13	17	8.5	8.4	28	33	36	102	55	32	50
18	8.9	15	17	8.8	29	28	35	40	248	56	30	49
19	11	15	17	8.9	10	32	44	41	164	56	29	42
20	10	16	24	9.0	10	30	41	43	131	48	32	37
21	9.2	13	34	9.0	8.1	13	46	44	117	47	36	34
22	10	14	33	9.2	8.2	16	40	52	96	45	35	34
23	10	15	41	9.3	9.5	41	40	65	98	45	30	34
24	11	15	16	9.5	10	60	36	74	100	44	27	34
25	9.7	14	8.5	9.7	7.1	14	35	80	89	43	28	34
26	10	13	8.2	9.8	6.9	24	34	75	86	43	31	34
27	9.6	22	8.2	10	7.9	32	32	77	80	44	27	33
28	9.6	34	8.5	10	8.4	32	31	89	75	44	37	33
29	9.8	22	9.0	12	---	33	32	81	83	44	38	34
30	12	21	9.2	39	---	32	30	70	864	60	40	34
31	13	---	9.2	21	---	30	---	77	---	49	42	---
TOTAL	285.5	472	630.8	386.1	418.9	613.2	989.4	1,449	3,704	1,963	1,126	1,123
MEAN	9.21	15.7	20.3	12.5	15.0	19.8	33.0	46.7	123	63.3	36.3	37.4
MAX	13	34	41	39	42	60	46	89	864	133	46	53
MIN	6.8	11	8.2	7.8	6.4	6.6	9.4	25	74	43	27	33
AC-FT	566	936	1,250	766	831	1,220	1,960	2,870	7,350	3,890	2,230	2,230
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1922 - 2003, BY WATER YEAR (WY)
MEAN	87.1	75.3	34.2	22.8	30.0	58.8	63.8	76.2	81.6	72.8	83.2	70.7
MAX	265	210	109	60.4	84.6	201	170	187	318	200	401	159
(WY)	(1924)	(1924)	(1971)	(1923)	(1924)	(1924)	(1924)	(1995)	(1923)	(1923)	(1923)	(1986)
MIN	9.21	15.7	9.80	7.87	11.4	19.8	11.0	14.0	21.9	13.0	10.6	9.60
(WY)	(2003)	(2003)	(1979)	(1975)	(1976)	(2003)	(1978)	(1981)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1922 - 2003
ANNUAL TOTAL	5,921.3	13,160.9
ANNUAL MEAN	16.2	36.1	63.3
HIGHEST ANNUAL MEAN			130 1923
LOWEST ANNUAL MEAN			23.7 2002
HIGHEST DAILY MEAN	114 Mar 16	864 Jun 30	2,670 Aug 17, 1923
LOWEST DAILY MEAN	6.8 Oct 1	6.4 Feb 9	3.3 Aug 7, 1977
ANNUAL SEVEN-DAY MINIMUM	7.8 Sep 28	6.9 Mar 4	5.7 Dec 16, 1978
MAXIMUM PEAK FLOW		a2,820 Jun 30	b12,300 Jul 10, 1978
MAXIMUM PEAK STAGE		14.58 Jun 30	c21.11 Jul 10, 1978
ANNUAL RUNOFF (AC-FT)	11,740	26,100	45,820
10 PERCENT EXCEEDS	24	77	123
50 PERCENT EXCEEDS	14	31	48
90 PERCENT EXCEEDS	8.8	8.2	15

a From rating curve extended above 2,260 ft3/s on basis of contracted-opening measurement of peak flow. b From contracted-opening measurement of peak flow. c From floodmark.