COLORADO RIVER MAIN STEM

09106150 COLORADO RIVER BELOW GRAND VALLEY DIVERSION NEAR PALISADE, CO

LOCATION.--Lat 39°05'55", long 108°21'16", in NW14SE14 sec.3, T.1 S., R.98 W., Mesa County, Hydrologic Unit 14010005, on right bank 0.25 mi downstream of intake structure for Grand Valley Diversion Canal, and 0.25 mi south of Palisade.

DRAINAGE AREA.--8,753 mi2.

PERIOD OF RECORD.--October 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=09106150

GAGE.--Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 4,670 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, which are poor. Natural flow of stream affected by transmountain diversions, storage reservoirs, power development, and diversion for irrigation of about 230,000 acres. 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	513	1,400	1,380	1,140	1,160	1,240	1,110	1,470	18,100	2,400	456	750
2	461	1,280	1,440	1,130	1,170	1,170	1,070	1,220	20,300	2,180	437	747
3	871	1,250	1,480	1,120	1,220	1,170	1,030	1,040	e16,500	2,080	478	622
4	699	1,230	1,470	1,150	1,190	1,150	1,110	1,260	e13,600	2,070	495	579
5	601	1,340	1,360	1,250	1,120	1,190	1,130	1,520	e11,900	1,880	535	619
6	516	1,580	1,390	1,250	1,090	1,200	1,050	1,350	e10,100	1,650	582	784
7	484	1,590	1,380	1,230	1,020	1,320	775	1,090	8,170	1,490	516	933
8	440	1,870	1,310	1,130	931	1,250	587	910	7,230	1,330	506	1,120
9	436	2,980	1,260	1,100	931	1,250	418	1,280	6,590	1,180	509	1,420
10	415	2,540	1,120	1,130	912	1,250	364	1,240	6,760	1,120	507	e1,760
11	425	2,280	1,160	1,200	1,040	1,280	362	1,220	6,880	1,030	481	e1,910
12	370	2,060	1,160	1,230	1,130	1,340	403	1,280	6,740	866	405	1,730
13	394	1,800	1,130	1,200	1,190	1,440	493	1,090	6,670	806	353	1,410
14	359	1,730	1,250	1,160	1,390	1,410	555	1,130	6,530	837	342	1,180
15	325	1,750	1,210	1,170	1,490	1,580	688	1,590	6,090	747	408	1,150
16	303	1,760	1,160	1,150	1,330	1,600	863	3,290	6,320	657	584	1,080
17	290	1,670	1,180	1,080	1,250	1,510	721	5,120	6,110	710	467	987
18	323	1,650	1,240	1,100	1,220	1,410	547	6,830	5,450	734	586	945
19	337	1,610	1,280	1,090	1,160	1,410	452	e7,990	5,250	751	857	1,050
20	331	1,430	1,180	1,040	1,140	1,330	363	e7,930	5,170	718	1,130	1,170
21	360	1,440	1,100	1,080	1,110	1,320	254	e7,820	5,230	698	852	1,180
22	418	1,450	1,170	1,120	1,120	1,250	209	e8,050	4,770	625	650	1,160
23	434	1,460	1,110	1,130	1,150	1,300	228	e9,080	4,480	704	662	1,110
24	e525	1,420	1,050	1,170	1,120	1,420	474	9,680	4,230	529	678	1,060
25	e722	1,450	1,070	1,160	1,120	1,550	526	10,400	3,740	404	784	1,020
26	786	1,450	1,080	1,150	1,210	1,540	487	11,400	3,210	359	821	991
27	735	1,380	1,040	1,140	1,210	1,400	714	12,100	2,910	617	759	1,080
28	739	1,160	1,020	1,130	1,240	1,400	1,200	13,800	2,880	1,070	828	1,060
29	874	1,160	1,100	1,140	---	1,320	1,500	15,700	2,780	981	817	1,010
30	816	1,360	1,250	1,120	---	1,240	1,610	17,100	2,620	766	751	1,020
31	1,010	---	1,210	1,120	---	1,180	---	18,100	---	620	711	---
TOTAL	16,312	48,530	37,740	35,510	32,364	41,420	21,293	183,080	217,310	32,609	18,947	32,637
MEAN	526	1,618	1,217	1,145	1,156	1,336	710	5,906	7,244	1,052	611	1,088
MAX	1,010	2,980	1,480	1,250	1,490	1,600	1,610	18,100	20,300	2,400	1,130	1,910
MIN	290	1,160	1,020	1,040	912	1,150	209	910	2,620	359	342	579
AC-FT	32,350	96,260	74,860	70,430	64,190	82,160	42,230	363,100	431,000	64,680	37,580	64,740
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1991 - 2003, BY WATER YEAR (WY)
MEAN	1,171	1,885	1,691	1,671	1,706	1,945	1,957	7,162	9,401	3,720	1,470	1,153
MAX	2,560	2,484	2,370	2,375	2,416	2,913	4,837	14,160	20,860	16,010	3,897	2,461
(WY)	(1998)	(1998)	(1998)	(1998)	(1996)	(1998)	(1996)	(1993)	(1997)	(1995)	(1995)	(1997)
MIN	526	1,220	1,209	1,145	1,156	1,302	710	1,016	935	161	115	241
(WY)	(2003)	(1995)	(1991)	(2003)	(2003)	(1991)	(2003)	(2002)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1991 - 2003
ANNUAL TOTAL	331,092	717,752
ANNUAL MEAN	907	1,966	2,913
HIGHEST ANNUAL MEAN			5,114 1997
LOWEST ANNUAL MEAN			938 2002
HIGHEST DAILY MEAN	2,980 Nov 9	20,300 Jun 2	29,600 Jun 17, 1995
LOWEST DAILY MEAN	58 Aug 19	209 Apr 22	58 Aug 19, 2002
ANNUAL SEVEN-DAY MINIMUM	61 Aug 30	324 Oct 14	61 Aug 30, 2002
MAXIMUM PEAK FLOW		21,500 Jun 2	30,600 Jun 17, 1995
MAXIMUM PEAK STAGE		10.18 Jun 2	12.41 Jun 17, 1995
ANNUAL RUNOFF (AC-FT)	656,700	1,424,000	2,110,000
10 PERCENT EXCEEDS	1,550	4,910	6,740
50 PERCENT EXCEEDS	1,100	1,150	1,670
90 PERCENT EXCEEDS	91	476	718

e Estimated.