BLUE RIVER BASIN

09057500 BLUE RIVER BELOW GREEN MOUNTAIN RESERVOIR, CO

LOCATION.--Lat 39°52'49", long 106°20'00", in SW14NE14 sec.15, T.2 S., R.80 W., Summit County, Hydrologic Unit 14010002, on left bank 0.3 mi upstream from Elliott Creek, 0.3 mi downstream from Green Mountain Dam, and 13 mi southeast of Kremmling.

DRAINAGE AREA.--599 mi2, includes 15.3 mi2 of Elliott Creek above diversion for Elliott Creek feeder canal.

PERIOD OF RECORD.--October 1937 to current year. Prior to October 1943, published as Blue River below Green Mountain Reservoir, near Kremmling. Statistical summary computed for 1943 to current year. Water-quality data available, January 1986 to September 1987. Daily specific conductance and water temperature record available, October 1986 to September 1987 and October 1995 to September 1999. For a complete listing of historical data available for this site, see http://waterdata. usgs.gov/co/nwis/inventory/?site_no=09057500.

REVISED RECORDS.--WSP 2124: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry. Datum of gage is 7,682.66 ft above NGVD of 1929, (levels by U.S. Bureau of Reclamation). Prior to Oct. 1, 1951, water-stage recorder at site 3.7 mi downstream at different datum.

REMARKS.--No estimated daily discharges. Records good. Flow regulated by Green Mountain Reservoir since November 1942 (station 09057000). Diversions for irrigation of about 5,000 acres upstream from station. Transmountain diversions upstream from station (see elsewhere in this report). 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	64	295	170	142	155	209	220	55	9.1	60	455	515
2	62	294	170	142	155	209	220	57	4.2	58	549	518
3	61	293	170	142	167	210	159	60	14	58	635	591
4	61	254	169	142	177	209	79	62	63	57	690	634
5	61	230	169	142	177	209	53	62	64	57	652	665
6	61	269	169	142	176	209	87	62	64	57	616	694
7	61	305	170	142	178	202	154	62	64	57	587	693
8	61	306	169	142	178	192	176	62	64	57	556	580
9	61	306	138	142	173	194	159	62	64	57	551	448
10	60	307	116	142	172	196	97	62	64	57	545	317
11	60	306	119	142	173	187	57	62	65	93	538	176
12	60	307	110	142	173	176	57	62	64	122	532	93
13	60	306	106	142	173	177	57	62	64	121	591	106
14	60	307	116	142	182	124	55	62	64	119	629	135
15	60	306	117	142	182	55	55	61	65	108	629	175
16	60	257	133	142	181	55	55	61	66	102	632	258
17	59	160	146	142	181	65	55	61	66	97	632	385
18	60	110	148	141	178	74	55	61	64	92	632	495
19	59	111	148	141	177	73	55	61	63	95	530	556
20	59	110	146	142	177	133	55	61	64	131	550	612
21	59	110	142	142	178	232	55	62	64	314	549	638
22	83	148	142	141	177	276	55	62	64	292	550	668
23	114	170	142	155	177	263	55	63	64	301	548	668
24	112	169	142	160	178	183	55	64	64	346	550	780
25	112	170	142	163	177	131	55	64	64	369	550	878
26	209	169	142	157	175	132	55	64	63	380	558	869
27	293	170	142	158	195	132	55	30	61	370	548	869
28	291	170	142	157	210	152	54	6.2	61	350	508	869
29	291	169	142	157	---	164	54	7.7	61	314	516	872
30	291	170	142	158	---	189	54	9.5	61	244	513	872
31	287	---	142	155	---	209	---	4.8	---	323	514	---
TOTAL	3,352	6,754	4,461	4,541	4,952	5,221	2,507	1,657.2	1,746.3	5,258	17,635	16,629
MEAN	108	225	144	146	177	168	83.6	53.5	58.2	170	569	554
MAX	293	307	170	163	210	276	220	64	66	380	690	878
MIN	59	110	106	141	155	55	53	4.8	4.2	57	455	93
AC-FT	6,650	13,400	8,850	9,010	9,820	10,360	4,970	3,290	3,460	10,430	34,980	32,980
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1943 - 2003, BY WATER YEAR (WY)
MEAN	383	292	307	302	290	312	383	505	721	782	619	499
MAX	1,258	800	580	566	559	864	1,286	1,557	2,134	2,536	1,547	846
(WY)	(1963)	(1963)	(1947)	(1948)	(1962)	(1962)	(1996)	(1952)	(1984)	(1984)	(1984)	(1990)
MIN	108	82.5	0.72	0.46	0.19	0.61	47.2	53.5	54.4	131	270	70.0
(WY)	(2003)	(1943)	(1943)	(1943)	(1943)	(1943)	(1943)	(2003)	(1981)	(1981)	(1964)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1943 - 2003
ANNUAL TOTAL	74,900	74,713.5
ANNUAL MEAN	205	205
HIGHEST ANNUAL MEAN			946 1984
LOWEST ANNUAL MEAN			200 1964
HIGHEST DAILY MEAN	623 Jul 20	878 Sep 25	4,010 Jul 12, 1995
LOWEST DAILY MEAN	59 Oct 17	4.2 Jun 2	a,b0.00 Dec 6, 1942
ANNUAL SEVEN-DAY MINIMUM	59 Oct 15	7.9 May 28	0.00 Jan 5, 1943
MAXIMUM PEAK FLOW		894 Sep 24	4,040 Jul 12, 1995
MAXIMUM PEAK STAGE		5.96 Sep 24	10.85 Jul 12, 1995
ANNUAL RUNOFF (AC-FT)	148,600	148,200
10 PERCENT EXCEEDS	430	549	835
50 PERCENT EXCEEDS	167	142	362
90 PERCENT EXCEEDS	65	57	112

a No flow at times in 1943. b Minimum daily discharge (prior to Green Mountain Reservoir), 80 ft3/s, Feb 18-24, 1938, Feb 18-19, 1940.