PLATTE RIVER BASIN

06708800 EAST PLUM CREEK BELOW HASKINS GULCH NEAR CASTLE ROCK, CO

LOCATION.--Lat 39°25'28", long 104°54'27", in SE14SE14 sec.20, T.7 S., R.67 W., Douglas County, Hydrologic Unit 10190002, on right bank at the Plum Creek Wastewater Treatment Plant, 0.1 mi southwest of Happy Canyon Road, 3.0 mi south of Sedalia, and 3.6 mi northwest of Castle Rock.

DRAINAGE AREA.--117 mi2.

PERIOD OF RECORD.--April 1999 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06708800

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,940 ft above NGVD of 1929, from topographic map.

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.

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	1.4	2.1	2.2	1.8	1.7	1.7	19	56	10	4.1	e4.5	7.5
2	1.9	2.1	2.1	2.6	1.8	2.2	22	51	7.0	4.4	e4.2	5.2
3	1.2	2.0	2.3	3.0	1.9	2.3	23	49	6.6	4.0	e7.0	4.0
4	1.2	2.0	2.3	2.5	2.3	2.1	23	46	8.8	3.9	e6.5	3.3
5	1.1	2.0	2.2	2.4	2.4	2.1	20	46	21	3.4	e6.0	2.5
6	1.2	1.9	2.3	2.3	2.3	1.8	20	44	11	3.7	e5.5	1.8
7	1.2	1.9	2.4	2.5	2.8	1.6	16	42	17	3.6	e5.5	3.2
8	1.1	1.8	2.5	2.1	2.5	1.8	14	39	11	3.7	e5.0	3.0
9	1.2	1.8	3.2	2.7	2.2	1.7	13	36	10	4.0	e5.0	1.4
10	1.2	1.8	3.3	4.5	2.1	1.6	12	38	9.6	4.2	e5.0	2.2
11	1.2	2.0	2.6	2.3	2.6	1.6	9.9	31	8.9	4.0	e20	1.9
12	1.3	1.8	2.9	3.4	3.4	1.5	11	25	6.7	4.0	e10	1.2
13	1.4	1.8	2.2	2.7	3.2	1.4	13	23	6.1	3.8	e5.0	1.3
14	1.4	1.9	2.4	2.3	3.4	1.5	19	23	5.4	2.5	4.1	1.4
15	1.6	1.9	2.5	2.4	5.3	1.4	26	27	4.9	2.6	2.8	2.5
16	1.6	1.8	2.9	2.7	4.6	1.5	27	27	3.5	2.5	5.1	1.5
17	1.5	1.7	2.3	1.8	4.3	2.1	25	24	9.7	3.1	3.3	1.2
18	1.7	1.7	2.2	2.2	4.5	2.6	25	19	9.3	3.4	5.6	1.3
19	1.9	1.7	2.1	2.3	4.3	1.5	41	18	7.0	46	4.9	1.4
20	1.8	1.7	2.4	2.1	3.7	6.0	28	19	7.7	e60	4.4	1.3
21	1.8	1.8	3.0	2.0	2.9	7.1	24	16	9.4	e10	4.7	0.98
22	2.0	1.8	3.4	1.7	3.1	9.4	24	13	8.5	e6.0	6.4	0.99
23	2.2	1.8	3.4	1.8	3.0	21	40	13	7.0	e5.0	8.2	1.2
24	2.5	1.9	3.2	1.7	5.4	19	72	13	6.2	e4.5	3.3	1.1
25	2.5	2.0	3.4	1.3	4.5	22	50	16	5.5	e4.5	2.3	1.1
26	2.3	2.1	2.7	1.6	2.2	26	48	15	4.9	e4.3	2.4	1.2
27	2.9	2.1	2.7	1.7	1.7	21	54	10	4.7	e4.2	2.4	1.3
28	2.4	2.0	1.9	1.7	1.7	17	61	7.5	5.0	e7.0	2.4	1.6
29	2.9	2.1	1.5	1.9	---	13	61	6.2	5.2	e6.0	2.2	1.5
30	2.3	2.1	1.5	1.9	---	16	59	5.9	4.2	e5.7	38	2.4
31	2.1	---	2.5	1.8	---	17	---	5.8	---	e5.0	38	---
TOTAL	54.0	57.1	78.5	69.7	85.8	228.5	899.9	804.4	241.8	233.1	229.7	62.47
MEAN	1.74	1.90	2.53	2.25	3.06	7.37	30.0	25.9	8.06	7.52	7.41	2.08
MAX	2.9	2.1	3.4	4.5	5.4	26	72	56	21	60	38	7.5
MIN	1.1	1.7	1.5	1.3	1.7	1.4	9.9	5.8	3.5	2.5	2.2	0.98
AC-FT	107	113	156	138	170	453	1,780	1,600	480	462	456	124
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1999 - 2003, BY WATER YEAR (WY)
MEAN	5.57	5.84	5.83	5.87	6.46	8.43	20.9	37.4	18.5	7.80	9.12	6.28
MAX	11.0	11.5	10.6	10.0	9.04	15.0	31.4	109	61.2	21.6	29.0	14.6
(WY)	(2000)	(2000)	(2000)	(2000)	(2000)	(2000)	(2000)	(1999)	(1999)	(1999)	(1999)	(1999)
MIN	1.74	1.90	2.53	2.25	3.06	4.48	3.17	3.57	4.77	2.51	1.46	2.08
(WY)	(2003)	(2003)	(2003)	(2003)	(2003)	(2002)	(2002)	(2002)	(2002)	(2001)	(2001)	(2003)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1999 - 2003
ANNUAL TOTAL	1,272.13	3,044.97
ANNUAL MEAN	3.49	8.34	8.22
HIGHEST ANNUAL MEAN			12.4 2000
LOWEST ANNUAL MEAN			3.93 2002
HIGHEST DAILY MEAN	43 Jun 19	72 Apr 24	410 Apr 30, 1999
LOWEST DAILY MEAN	0.33 Jun 23	0.98 Sep 21	0.33 Jun 23, 2002
ANNUAL SEVEN-DAY MINIMUM	0.64 Jun 22	1.1 Sep 20	0.64 Jun 22, 2002
MAXIMUM PEAK FLOW		561 Aug 30	a901 Jun 19, 2002
MAXIMUM PEAK STAGE		7.28 Aug 30	7.75 Jun 19, 2002
ANNUAL RUNOFF (AC-FT)	2,520	6,040	5,960
10 PERCENT EXCEEDS	5.8	23	21
50 PERCENT EXCEEDS	2.9	3.0	5.2
90 PERCENT EXCEEDS	1.1	1.5	1.5

e Estimated. a From rating curve extended above 359 ft3/s.