PLATTE RIVER BASIN

06719505 CLEAR CREEK AT GOLDEN, CO

LOCATION.--Lat 39°45'11", long 105°14'05", in NE14NW14 sec.33, T.3 S., R.70 W., Jefferson County, Hydrologic Unit 10190004, on left bank 100 ft downstream from U.S. Highway 6 bridge at west edge of Golden, 0.7 mi downstream from headgate of Church ditch, and 13.3 mi downstream from North Clear Creek.

DRAINAGE AREA.--400 mi2.

PERIOD OF RECORD.--October 1974 to current year. Records for station at site 0.8 mi upstream (October 1908 to December 1909, June 1911 to September 1974) are not equivalent due to diversions by Church ditch. Water-quality data available, November 1977 to August 1995. Sediment data available, April to September 1981, and April 1993 to August 1995. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06719505

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,695 ft above NGVD of 1929, from topographic map. Prior to Sept. 12, 1980, at site 80 ft downstream. Prior to Jan. 22, 1987, at datum 2.00 ft higher, at both sites.

REMARKS.--Records fair except for period Nov. 1 to Mar. 25, which is poor. Natural flow of stream affected by minor transmountain diversions from Colorado River basin through Berthoud Pass ditch (see elsewhere in this report) and several small reservoirs upstream from station. Diversion by Welch ditch 1.4 mi upstream from station and by Church Ditch 0.7 mi upstream from station for irrigation of about 5,200 acres downstream from station. 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	55	e40	e28	e30	26	24	76	185	1,530	606	173	136
2	87	e40	e28	e29	25	30	99	171	1,380	578	158	118
3	75	e40	e24	e29	26	26	107	162	1,260	563	173	149
4	74	e40	e23	e29	e13	27	98	165	1,140	540	182	146
5	63	e41	e22	e29	20	28	86	152	1,100	518	156	124
6	49	e42	22	e29	19	24	82	117	971	494	148	148
7	61	e40	21	e29	e13	28	71	104	910	463	153	188
8	60	41	26	e29	14	28	65	104	765	448	162	183
9	55	38	24	26	26	29	68	102	744	430	154	222
10	58	37	21	15	e30	31	86	114	812	419	160	195
11	52	35	24	26	e30	30	108	100	883	397	141	178
12	49	27	22	e30	e30	31	123	100	917	369	136	165
13	51	42	36	e30	e30	32	141	113	898	356	139	152
14	47	45	42	32	e30	33	167	144	850	337	145	156
15	46	42	44	31	e30	35	190	193	871	321	139	143
16	47	35	36	23	30	34	165	214	882	310	125	125
17	47	41	35	23	29	37	153	312	854	306	170	125
18	48	41	28	23	26	e40	152	370	896	298	191	112
19	47	35	15	34	21	e38	150	387	906	314	172	113
20	38	39	e12	36	20	e40	144	382	876	347	142	114
21	37	35	e13	33	25	e50	131	403	831	323	133	108
22	42	35	13	28	25	e40	133	452	805	291	148	110
23	47	36	31	34	18	e54	135	544	789	272	142	107
24	51	37	31	32	19	e58	134	671	787	251	147	113
25	52	e28	34	28	17	60	136	806	734	238	155	109
26	50	e30	26	26	28	66	152	830	665	255	171	105
27	49	e30	e28	27	35	73	177	923	648	239	144	116
28	45	e32	e28	24	32	58	187	1,120	634	246	132	127
29	43	e33	e28	22	---	51	203	1,290	638	249	129	126
30	35	e28	e30	26	---	53	201	1,360	624	210	242	127
31	35	---	e31	25	---	60	---	1,460	---	190	188	---
TOTAL	1,595	1,105	826	867	687	1,248	3,920	13,550	26,600	11,178	4,850	4,140
MEAN	51.5	36.8	26.6	28.0	24.5	40.3	131	437	887	361	156	138
MAX	87	45	44	36	35	73	203	1,460	1,530	606	242	222
MIN	35	27	12	15	13	24	65	100	624	190	125	105
AC-FT	3,160	2,190	1,640	1,720	1,360	2,480	7,780	26,880	52,760	22,170	9,620	8,210
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1975 - 2003, BY WATER YEAR (WY)
MEAN	85.9	63.0	50.4	44.6	42.8	44.4	77.5	323	767	452	210	127
MAX	192	115	89.6	74.3	67.3	64.2	131	655	1,522	1,203	535	231
(WY)	(1985)	(1985)	(2000)	(2000)	(2000)	(2000)	(2003)	(1984)	(1995)	(1995)	(1999)	(1984)
MIN	51.5	36.8	26.6	28.0	24.5	31.2	39.0	123	195	86.7	59.3	48.2
(WY)	(2003)	(2003)	(2003)	(2003)	(2003)	(1976)	(1982)	(1981)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1975 - 2003
ANNUAL TOTAL	25,506	70,566
ANNUAL MEAN	69.9	193	191
HIGHEST ANNUAL MEAN			321 1995
LOWEST ANNUAL MEAN			78.9 2002
HIGHEST DAILY MEAN	267 Jun 4	1,530 Jun 1	2,300 Jun 17, 1995
LOWEST DAILY MEAN	e12 Dec 20	e12 Dec 20	e12 Dec 20, 2002
ANNUAL SEVEN-DAY MINIMUM	20 Dec 18	19 Feb 2	19 Feb 2, 2003
MAXIMUM PEAK FLOW		1,680 Jun 1	2,370 Jul 10, 1983
MAXIMUM PEAK STAGE		7.63 Jun 1	a6.44 Jul 10, 1983
ANNUAL RUNOFF (AC-FT)	50,590	140,000	138,400
10 PERCENT EXCEEDS	163	636	537
50 PERCENT EXCEEDS	49	74	79
90 PERCENT EXCEEDS	32	26	37

e Estimated. a Maximum gage height, 8.10 ft, Jun 21, 1995.