PLATTE RIVER BASIN

06709000 PLUM CREEK NEAR SEDALIA, CO

LOCATION.--Lat 39°26'18", long 104°58'57", in NE14SE14 sec.15, T.7 S., R.68 W., Douglas County, Hydrologic Unit 10190002, on right bank, on south side of County Road No. 20 bridge over Plum Creek, 1.0 mi west of Sedalia, and 1.4 mi downstream from the confluence of East and West Plum Creeks.

DRAINAGE AREA.--274 mi2.

PERIOD OF RECORD.--June 1942 to September 1947. August 1990 to current year. For a complete listing of historical data available for this site, see
http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06709000.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,720 ft above NGVD of 1929, from topographic map. Aug. 1942 to Sept. 1947, water-stage recorder at site 150 ft upstream at different datum. Prior to Aug. 1942, nonrecording gage at bridge.

REMARKS.--Records poor. Diversions upstream from station for irrigation. 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.

COOPERATION.--U.S. Army Corps of Engineers.

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	4.8	8.1	4.9	6.2	5.6	4.0	55	156	39	12	4.2	13
2	12	9.4	4.7	6.4	5.3	4.5	68	124	32	7.4	2.7	10
3	10	10	4.8	6.6	5.1	4.3	69	102	24	7.0	9.0	6.4
4	12	9.8	5.3	6.3	4.5	3.5	62	91	22	4.4	9.2	8.7
5	8.9	7.1	5.4	6.9	3.8	4.1	65	83	57	4.6	3.1	8.8
6	5.0	7.6	4.7	7.0	3.3	4.6	65	74	42	3.8	2.5	7.0
7	3.4	4.9	5.1	7.3	4.1	4.1	52	64	47	3.5	2.1	7.3
8	4.7	4.3	5.2	6.9	4.7	3.6	48	61	38	3.0	3.6	8.1
9	5.2	6.3	5.1	5.0	4.2	3.8	48	53	34	2.2	3.7	6.9
10	4.3	7.2	3.8	5.8	4.8	3.2	49	62	34	3.8	3.5	6.9
11	4.0	5.4	5.0	5.3	4.1	2.8	54	51	35	2.1	61	4.3
12	3.7	6.8	5.1	5.8	4.8	2.4	69	46	33	2.9	28	3.6
13	5.5	7.6	4.5	6.3	5.7	3.2	89	42	32	2.6	6.6	2.6
14	5.8	7.6	5.8	6.0	6.1	2.7	112	40	30	1.8	4.2	4.6
15	3.9	7.0	6.6	5.5	6.2	2.8	137	43	27	1.6	2.6	5.5
16	5.0	6.7	e6.4	4.0	5.7	3.5	133	48	26	3.2	2.0	4.8
17	5.8	5.3	e6.0	5.2	5.7	3.6	122	43	35	2.6	3.1	3.3
18	4.1	5.8	e5.8	5.8	4.6	5.9	132	39	38	2.0	4.9	3.2
19	5.9	4.9	5.4	6.1	3.6	112	146	36	35	26	4.8	3.7
20	4.5	5.4	6.2	6.6	3.4	56	116	38	39	76	4.7	3.9
21	4.1	5.9	5.6	6.3	3.3	26	100	37	33	11	3.6	3.8
22	4.9	5.4	6.1	4.8	3.5	27	98	36	27	5.0	2.3	4.3
23	5.8	6.6	6.1	5.5	3.1	40	123	34	22	2.1	2.3	3.9
24	4.9	5.8	7.3	6.6	3.1	30	182	33	20	1.9	2.7	2.8
25	4.5	5.3	5.8	6.3	3.3	32	147	42	24	2.8	2.6	3.0
26	4.6	3.6	7.0	6.1	3.8	51	152	40	26	3.4	2.0	2.3
27	6.6	4.0	6.0	6.5	3.5	41	182	37	19	3.8	2.5	2.2
28	7.0	4.3	6.6	5.2	4.1	23	184	34	16	12	2.3	2.3
29	9.6	4.1	7.3	4.6	---	16	182	31	22	6.6	2.6	4.2
30	8.8	4.7	6.6	4.9	---	25	175	30	19	5.8	21	3.9
31	7.3	---	6.4	5.3	---	44	---	30	---	6.2	68	---
TOTAL	186.6	186.9	176.6	183.1	123.0	589.6	3,216	1,680	927	233.1	277.4	155.3
MEAN	6.02	6.23	5.70	5.91	4.39	19.0	107	54.2	30.9	7.52	8.95	5.18
MAX	12	10	7.3	7.3	6.2	112	184	156	57	76	68	13
MIN	3.4	3.6	3.8	4.0	3.1	2.4	48	30	16	1.6	2.0	2.2
AC-FT	370	371	350	363	244	1,170	6,380	3,330	1,840	462	550	308
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1942 - 2003, BY WATER YEAR (WY)
MEAN	9.65	14.9	12.7	12.2	15.0	19.2	54.1	100	37.9	14.9	18.2	7.16
MAX	31.8	30.6	29.1	23.3	27.8	38.5	155	332	134	71.2	147	24.5
(WY)	(1943)	(1943)	(1943)	(2000)	(1944)	(1998)	(1998)	(1944)	(1947)	(1947)	(1945)	(2000)
MIN	1.32	3.34	5.00	4.09	4.39	6.62	12.3	5.06	2.70	1.59	0.020	0.000
(WY)	(1945)	(1945)	(1944)	(1997)	(2003)	(1995)	(2002)	(1946)	(1946)	(1996)	(1996)	(1943)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1942 - 2003
ANNUAL TOTAL	3,014.53	7,934.6
ANNUAL MEAN	8.26	21.7	26.4
HIGHEST ANNUAL MEAN			58.3 1947
LOWEST ANNUAL MEAN			8.69 2002
HIGHEST DAILY MEAN	68 Jun 20	184 Apr 28	915 Aug 8, 1945
LOWEST DAILY MEAN	0.27 Sep 4	1.6 Jul 15	a0.00 Jul 11, 1943
ANNUAL SEVEN-DAY MINIMUM	0.41 Sep 2	2.4 Jul 12	0.00 Aug 29, 1943
MAXIMUM PEAK FLOW		658 Aug 11	b,c7,700 Aug 8, 1945
MAXIMUM PEAK STAGE		2.80 Aug 11	d6.52 Aug 8, 1945
ANNUAL RUNOFF (AC-FT)	5,980	15,740	19,160
10 PERCENT EXCEEDS	15	61	53
50 PERCENT EXCEEDS	6.6	6.0	13
90 PERCENT EXCEEDS	2.1	3.1	2.0

e Estimated. a No flow many days, also during most years. b Site and datum then in use, from rating curve extended above 350 ft3/s on basis of slope-area determination of peak flow. c Highest flood of actual record probably occurred Jun 16, 1965. Discharge computed at Plum Creek near Louviers was 154,000 cfs. d Maximum gage height, 7.07 ft, Jan 15, 1993, backwater from ice.