ARKANSAS RIVER BASIN

07103930 WEST MONUMENT CREEK AT MOUTH AT U.S. AIR FORCE ACADEMY, CO

LOCATION.--Lat 38°57'32", long 104°50'08", in NW14SE14 sec.36, T.12 S., R.67 W., El Paso County, Hydrologic Unit 11020003, on left bank 75 ft downstream from Union Pacific railroad bridge at U. S. Air Force Academy, 0.2 mi north of Ice Lake, and 2.0 mi west of Interstate 25.

DRAINAGE AREA.--23.5 mi2.

PERIOD OF RECORD.--March 2000 to September 2003 (discontinued). For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=07103930

GAGE.--Water-stage recorder and satellite telemetry. Elevation of gage is 6,380 ft above NGVD of 1929, from topographic map.

REMARKS.--No estimated daily discharges. Records fair except for Aug. 30-31, which are poor. Natural flow of stream affected by storage reservoirs, transmountain diversions, and diversions for municipal use. Flow partly regulated by Rampart Reservoir 9.3 mi upstream, Nichols Reservoir 8.3 mi upstream, and Northfield Reservoir 7.5 mi upstream. 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.

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	0.00	0.51	0.65	0.09	0.09	0.14	0.25	2.2	0.35	0.36	0.02	0.63
2	0.00	0.45	0.64	0.08	0.10	0.15	0.26	2.0	0.29	0.24	0.00	0.48
3	0.38	0.41	0.65	0.09	0.11	0.18	0.25	1.9	0.36	0.16	0.00	0.63
4	0.68	0.68	0.66	0.07	0.09	0.15	0.27	1.8	0.44	0.12	0.00	2.1
5	0.81	0.95	0.70	0.06	0.10	0.15	0.29	1.6	0.51	0.10	0.00	2.4
6	0.86	0.68	0.67	0.05	0.10	0.16	0.31	1.5	0.44	0.07	0.00	3.0
7	0.94	0.63	0.69	0.05	0.12	0.19	0.30	1.3	0.45	0.72	0.00	4.1
8	1.0	0.79	0.70	0.05	0.10	0.21	0.31	1.2	0.40	0.82	0.39	3.9
9	1.1	1.1	0.67	0.04	0.11	0.17	0.30	1.1	0.37	0.78	0.26	3.8
10	1.1	1.4	0.68	0.03	0.16	0.20	0.29	1.2	0.35	0.61	0.07	3.5
11	1.2	0.81	0.70	0.04	0.16	0.22	0.28	1.0	1.5	0.62	0.05	3.5
12	1.3	0.63	0.58	0.05	0.15	0.21	0.27	0.93	2.8	0.59	0.23	3.3
13	1.3	1.9	0.49	0.04	0.14	0.22	0.29	0.86	3.6	0.63	0.30	3.2
14	1.2	0.86	0.37	0.04	0.13	0.23	0.29	0.80	4.2	1.2	0.09	3.1
15	1.4	0.94	0.33	0.05	0.08	0.22	0.29	0.77	5.1	1.2	0.82	3.0
16	1.4	0.79	0.33	0.04	0.08	0.21	0.29	0.73	5.4	1.9	0.30	3.0
17	1.4	0.75	0.35	0.04	0.08	0.21	0.29	0.76	6.4	0.92	0.15	2.9
18	1.4	0.71	0.33	0.03	0.08	0.26	0.29	0.74	4.6	0.61	0.10	3.0
19	1.4	0.71	0.28	0.10	0.11	0.19	0.31	0.70	2.0	0.53	0.13	3.0
20	1.4	0.65	0.26	0.17	0.10	0.25	0.31	0.68	1.7	0.43	0.06	2.9
21	1.4	0.61	0.25	0.15	0.09	0.29	0.31	0.61	1.1	0.29	0.04	2.9
22	1.5	0.54	0.20	0.14	0.09	0.29	0.37	0.54	0.89	0.14	0.02	2.9
23	1.8	0.45	0.19	0.15	0.08	0.31	0.51	0.48	0.74	0.10	0.06	3.0
24	1.9	0.41	0.19	0.15	0.07	0.32	0.76	0.46	0.65	0.07	0.04	3.1
25	2.0	0.37	0.13	0.13	0.09	0.31	0.78	0.45	0.64	0.04	0.02	3.1
26	2.0	0.30	0.08	0.13	0.12	0.30	0.88	0.41	1.1	0.04	0.01	2.7
27	2.3	0.35	0.13	0.13	0.12	0.30	1.1	0.37	0.65	0.62	0.01	2.9
28	1.1	0.44	0.16	0.08	0.13	0.27	1.2	0.38	0.57	0.11	0.13	2.9
29	0.79	0.58	0.14	0.07	---	0.26	1.7	0.36	0.55	0.09	0.79	2.9
30	0.68	0.61	0.09	0.09	---	0.26	2.2	0.32	0.45	0.06	4.9	2.9
31	0.59	---	0.10	0.09	---	0.26	---	0.32	---	0.04	3.6	---
TOTAL	36.33	21.01	12.39	2.52	2.98	7.09	15.55	28.47	48.60	14.21	12.59	84.74
MEAN	1.17	0.70	0.40	0.081	0.11	0.23	0.52	0.92	1.62	0.46	0.41	2.82
MAX	2.3	1.9	0.70	0.17	0.16	0.32	2.2	2.2	6.4	1.9	4.9	4.1
MIN	0.00	0.30	0.08	0.03	0.07	0.14	0.25	0.32	0.29	0.04	0.00	0.48
AC-FT	72	42	25	5.0	5.9	14	31	56	96	28	25	168
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2003, BY WATER YEAR (WY)
MEAN	1.85	3.26	0.55	0.76	0.72	0.50	2.54	1.81	1.00	0.70	0.47	1.02
MAX	3.82	8.35	0.93	1.51	1.10	0.94	7.38	2.99	1.62	1.63	1.14	2.82
(WY)	(2001)	(2001)	(2001)	(2001)	(2002)	(2001)	(2000)	(2000)	(2003)	(2001)	(2001)	(2003)
MIN	0.55	0.70	0.31	0.081	0.11	0.23	0.52	0.35	0.20	0.028	0.000	0.000
(WY)	(2002)	(2003)	(2002)	(2003)	(2003)	(2003)	(2003)	(2002)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 2000 - 2003
ANNUAL TOTAL	171.92	286.48
ANNUAL MEAN	0.47	0.78	1.10
HIGHEST ANNUAL MEAN			2.09 2001
LOWEST ANNUAL MEAN			0.41 2002
HIGHEST DAILY MEAN	2.3 Oct 27	6.4 Jun 17	16 Apr 14, 2000
LOWEST DAILY MEAN	0.00 Jun 30	0.00 Oct 1	a0.00 Jul 8, 2001
ANNUAL SEVEN-DAY MINIMUM	0.00 Jul 22	0.00 Aug 1	0.00 Jul 22, 2002
MAXIMUM PEAK FLOW		b193 Aug 30	b193 Aug 30, 2003
MAXIMUM PEAK STAGE		5.31 Aug 30	5.31 Aug 30, 2003
ANNUAL RUNOFF (AC-FT)	341	568	794
10 PERCENT EXCEEDS	1.3	2.2	2.3
50 PERCENT EXCEEDS	0.35	0.37	0.58
90 PERCENT EXCEEDS	0.00	0.07	0.04

a Also occurred July 9-11, 2001, and on many days during 2002 and 2003. b From rating curve extended above 10 ft3/s.