ARKANSAS RIVER BASIN

07105800 FOUNTAIN CREEK AT SECURITY, CO

LOCATION (REVISED).--Lat 38°43'46", long 104°44'00", in NE14SW14 sec.24, T.15 S., R.66 W., El Paso County, Hydrologic Unit 11020003, on right bank 20 ft downstream from Carson Road Bridge at Security, 0.9 mi southwest of South Security School, 3.5 mi northeast of Fountain, and 5.5 mi upstream from Jimmy Camp Creek. Prior to Mar. 24, 2003, at site 20 ft upstream on left bank.

DRAINAGE AREA.--495 mi2.

WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1964 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07105800

REVISED RECORDS.--WDR CO-85-1: 1984 (M).

GAGE.--Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 5,640 ft above NGVD of 1929, from topographic map.
July 19, 1972 to Feb. 20, 1980, at site 880 ft downstream at datum 1.00 ft higher. Prior to July 19, 1972, and from Feb. 21, 1980 to Mar. 23, 2003, at site 20 ft upstream on left bank; prior to July 19, 1972, and from Feb. 21, 1980 to June 30, 1986, at datum 7.00 ft higher; July 1, 1986 to Feb. 6, 1995, at datum 4.00 ft higher; Feb 7, 1995 to Nov. 29, 1995, at datum 3.00 ft higher; Nov. 30, 1995 to Apr. 4, 2001, at datum 2.00 ft higher; and Apr. 14, 2001 to
Mar. 23, 2003, at present datum.

REMARKS.--Records fair except for June 19, Aug. 31, and estimated daily discharges, which are poor. Natural flow of stream affected by storage reservoirs, power developments, transmountain diversions, diversions for irrigation and municipal use, ground-water withdrawals, return flows from irrigated areas, and flows from sewage treatment plants.

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	62	97	66	57	86	162	110	107	151	77	70	93
2	110	106	66	55	85	165	111	110	94	68	70	117
3	58	101	65	60	88	130	112	113	102	64	96	171
4	50	92	62	60	87	107	113	131	242	62	116	104
5	46	87	56	57	94	98	134	138	225	61	83	88
6	44	85	55	57	86	96	200	133	75	65	76	123
7	40	84	59	55	85	93	120	131	96	65	73	116
8	44	82	60	57	85	103	111	133	66	60	77	105
9	86	80	58	56	84	96	105	126	88	61	112	93
10	84	79	57	50	88	101	91	171	105	62	92	89
11	79	82	61	51	87	98	77	114	103	62	84	97
12	75	81	65	57	87	97	76	111	82	65	108	e95
13	74	81	63	55	93	98	75	111	111	67	70	e98
14	70	79	65	54	108	98	73	118	270	64	67	e99
15	63	74	64	54	91	99	80	147	149	70	63	e85
16	57	69	62	51	89	102	87	165	140	74	65	76
17	57	69	59	52	91	119	82	111	283	70	66	75
18	59	65	55	52	89	219	86	106	258	61	78	e78
19	57	63	54	53	133	155	103	110	773	100	81	75
20	58	65	53	55	105	155	98	121	385	136	74	74
21	59	60	53	69	96	139	99	116	114	64	76	75
22	62	60	54	90	95	114	169	109	89	62	75	77
23	73	65	53	91	95	110	262	113	79	e65	83	77
24	66	65	56	95	90	159	225	108	78	64	85	74
25	65	68	50	92	93	211	96	225	83	63	125	76
26	72	65	49	92	100	113	78	112	323	65	82	79
27	213	68	57	92	107	103	73	83	129	131	159	83
28	100	68	61	83	133	101	80	64	93	402	159	81
29	81	67	59	81	---	102	107	59	100	157	186	84
30	85	67	57	82	---	104	110	67	97	77	295	86
31	91	---	55	82	---	109	---	112	---	68	913	---
TOTAL	2,240	2,274	1,809	2,047	2,650	3,756	3,343	3,675	4,983	2,632	3,859	2,743
MEAN	72.3	75.8	58.4	66.0	94.6	121	111	119	166	84.9	124	91.4
MAX	213	106	66	95	133	219	262	225	773	402	913	171
MIN	40	60	49	50	84	93	73	59	66	60	63	74
AC-FT	4,440	4,510	3,590	4,060	5,260	7,450	6,630	7,290	9,880	5,220	7,650	5,440
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1965 - 2003, BY WATER YEAR (WY)
MEAN	83.6	75.9	64.9	69.2	76.8	88.5	124	211	188	123	136	87.8
MAX	317	198	168	146	156	195	738	1,131	886	381	561	231
(WY)	(1985)	(2000)	(2000)	(1998)	(2000)	(2000)	(1999)	(1999)	(1997)	(1995)	(1999)	(1999)
MIN	12.6	15.1	17.8	11.9	14.1	21.3	23.7	24.7	17.8	30.1	23.5	13.1
(WY)	(1965)	(1965)	(1976)	(1976)	(1972)	(1965)	(1978)	(1966)	(1968)	(1972)	(1974)	(1968)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1965 - 2003
ANNUAL TOTAL	32,867	36,011
ANNUAL MEAN	90.0	98.7	111
HIGHEST ANNUAL MEAN			355 1999
LOWEST ANNUAL MEAN			31.5 1968
HIGHEST DAILY MEAN	792 Jul 6	913 Aug 31	e11,000 Apr 30, 1999
LOWEST DAILY MEAN	40 Oct 7	40 Oct 7	1.9 Mar 1, 1965
ANNUAL SEVEN-DAY MINIMUM	53 Oct 3	53 Oct 3	4.2 Feb 25, 1965
MAXIMUM PEAK FLOW		a7,100 Aug 31	b25,000 Jul 24, 1965
MAXIMUM PEAK STAGE		7.38 Aug 31	c11.30 Jul 24, 1965
ANNUAL RUNOFF (AC-FT)	65,190	71,430	80,320
10 PERCENT EXCEEDS	113	138	198
50 PERCENT EXCEEDS	83	84	78
90 PERCENT EXCEEDS	60	57	25

e Estimated. a From rating curve extended above 6,520 ft3/s on basis of slope-area measurement of peak flow at gage height 7.18 ft. b From slope-area measurement of peak flow. Flood of May 30, 1935, may have been larger. c From floodmarks, site and datum then in use.