ARKANSAS RIVER BASIN

07103940 MONUMENT CREEK AT SOUTH BOUNDARY AT U.S. AIR FORCE ACADEMY, CO

LOCATION.--Lat 38°57'15", long 104°50'00", in NE14NE14 sec.1, T.13 S., R.67 W., El Paso County, Hydrologic Unit 11020003, on the U. S. Air Force Academy, on left bank at the south boundary, 400 feet downstream from the Sante Fe Recreation Trail footbridge, 0.2 mi south of Ice Lake, and 1.5 mi west of Interstate 25.

DRAINAGE AREA.--150 mi2.

WATER-DISCHARGE RECORDS

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=07103940

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 6,350 ft above NGVD of 1929, from topographic map.

REMARKS.--Records fair except for estimated daily discharges and those above 30 ft3/s, which are poor. Natural flow of stream affected by storage reservoirs, transmountain diversions, diversions for irrigation and municipal use, ground-water withdrawals, return flows from irrigated areas, and flows from sewage treatment plants. 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	3.6	6.0	e5.5	e5.0	5.7	e5.8	13	39	12	7.8	3.4	13
2	4.5	6.1	5.5	e5.2	5.7	6.0	14	42	11	6.4	3.2	8.2
3	5.2	6.2	5.1	e5.7	6.0	6.0	13	39	9.9	5.7	3.1	8.0
4	5.2	6.3	5.1	5.6	e5.8	5.6	12	37	8.4	5.5	3.6	11
5	5.2	6.3	5.0	5.8	e5.6	e5.2	11	34	12	4.9	3.2	9.0
6	5.2	5.8	e5.0	5.6	e5.3	5.3	11	28	13	4.9	2.9	8.9
7	5.3	5.7	e4.8	e5.7	e4.9	5.4	11	27	13	5.1	2.3	10
8	4.9	5.8	e4.5	e6.0	e5.0	5.1	14	26	13	4.6	2.7	12
9	4.2	6.0	e4.8	e5.3	e5.2	4.9	14	22	9.4	4.0	2.8	9.7
10	4.2	6.5	e5.1	e5.0	e5.5	5.1	13	24	8.6	3.8	2.8	8.8
11	4.3	6.3	e4.8	e5.1	e5.7	5.1	9.6	21	9.9	3.9	3.6	6.7
12	4.2	6.0	e4.5	e5.4	e6.0	4.9	8.6	21	11	3.8	4.0	6.0
13	4.9	6.7	e4.6	e5.7	6.2	4.7	10	20	13	3.6	3.5	5.6
14	4.7	6.3	e4.7	e5.6	6.3	4.9	16	18	10	3.9	3.1	6.4
15	4.6	6.5	e4.7	e5.7	6.0	5.2	22	19	9.3	3.7	3.6	6.1
16	4.8	6.1	e4.5	e5.2	5.8	5.2	28	21	9.9	4.3	3.1	6.1
17	5.6	6.0	e4.5	e5.0	5.6	5.5	27	15	15	3.6	3.0	5.6
18	5.2	5.7	e4.4	e4.9	5.5	7.2	22	16	31	3.3	3.5	6.1
19	5.3	5.8	e4.2	e5.5	5.7	5.6	23	18	35	3.6	4.3	8.0
20	5.5	5.5	e4.0	e5.4	5.5	8.4	24	18	35	4.1	3.2	6.6
21	5.3	5.4	e4.2	e4.9	5.6	10	23	16	19	3.4	2.6	6.0
22	5.2	5.5	e4.2	e4.7	5.5	9.6	18	14	11	3.7	2.6	6.5
23	5.6	5.4	e4.0	e5.0	e5.0	11	22	14	11	3.8	2.4	7.5
24	5.8	5.5	e3.8	e5.1	e4.6	12	40	13	9.4	3.8	2.4	6.9
25	5.7	5.5	e3.8	e5.4	e4.7	11	45	12	9.1	3.8	2.7	6.8
26	5.8	e5.2	e4.0	e5.5	e4.9	13	30	11	15	3.9	2.5	6.4
27	8.4	e5.0	e4.6	5.3	5.4	15	12	11	11	4.1	3.3	6.2
28	7.3	e4.8	e4.9	5.1	5.3	12	28	9.0	9.0	4.0	3.5	6.0
29	6.9	5.2	e5.0	5.5	---	9.9	60	8.3	15	3.9	6.4	6.0
30	5.8	5.5	e4.5	5.6	---	8.8	41	9.8	10	3.6	20	6.3
31	5.7	---	e4.8	5.9	---	8.7	---	20	---	3.4	86	---
TOTAL	164.1	174.6	143.1	166.4	154.0	232.1	635.2	643.1	408.9	131.9	199.3	226.4
MEAN	5.29	5.82	4.62	5.37	5.50	7.49	21.2	20.7	13.6	4.25	6.43	7.55
MAX	8.4	6.7	5.5	6.0	6.3	15	60	42	35	7.8	86	13
MIN	3.6	4.8	3.8	4.7	4.6	4.7	8.6	8.3	8.4	3.3	2.3	5.6
AC-FT	325	346	284	330	305	460	1,260	1,280	811	262	395	449
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2003, BY WATER YEAR (WY)
MEAN	7.71	8.53	7.38	8.40	8.51	10.1	26.1	26.1	11.1	7.14	6.69	6.43
MAX	9.85	11.6	10.6	11.7	12.0	14.8	51.7	39.7	13.6	11.4	9.55	8.37
(WY)	(2001)	(2001)	(2001)	(2001)	(2001)	(2001)	(2000)	(2001)	(2003)	(2001)	(2000)	(2000)
MIN	5.29	5.82	4.62	5.37	5.50	7.49	8.69	7.65	4.82	3.98	2.76	3.52
(WY)	(2003)	(2003)	(2003)	(2003)	(2003)	(2003)	(2002)	(2002)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 2000 - 2003
ANNUAL TOTAL	2,162.1	3,279.1
ANNUAL MEAN	5.92	8.98	9.95
HIGHEST ANNUAL MEAN			14.3 2001
LOWEST ANNUAL MEAN			6.55 2002
HIGHEST DAILY MEAN	14 Jan 9	86 Aug 31	86 Aug 31, 2003
LOWEST DAILY MEAN	1.9 Aug 17	2.3 Aug 7	1.9 Aug 17, 2002
ANNUAL SEVEN-DAY MINIMUM	2.2 Aug 11	2.6 Aug 20	2.2 Aug 11, 2002
MAXIMUM PEAK FLOW		a218 Aug 31	a218 Aug 31, 2003
MAXIMUM PEAK STAGE		4.85 Aug 31	4.85 Aug 31, 2003
ANNUAL RUNOFF (AC-FT)	4,290	6,500	7,210
10 PERCENT EXCEEDS	8.7	18	17
50 PERCENT EXCEEDS	5.8	5.7	7.6
90 PERCENT EXCEEDS	3.1	3.8	3.7

e Estimated. a From rating curve extended above 58 ft3/s.