GUNNISON RIVER BASIN

09134100 NORTH FORK GUNNISON RIVER BELOW PAONIA, CO

LOCATION.--Lat 38°51'27", long 107°37'19", in SW14SE14 sec.1, T.14 S., R.92 W., Delta County, Hydrologic Unit 14020004, on left bank 1,250 ft downstream from Roatcap Creek, and 1.5 mi southwest of Paonia.

DRAINAGE AREA.--741 mi2.

PERIOD OF RECORD.--March 2000 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09134100

GAGE.--Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 5,560 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, and the period May 15 to July 4, which are fair. Natural flow of stream affected by diversion to Fire Mountain Canal for irrigation of about 5,000 acres above and below station and many other smaller diversions for irrigation above station, storage in Overland Reservoir (capacity, 6,280 acre-ft), and storage in Paonia Reservoir (capacity, 18,300 acre-ft), since February 1962. 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	70	89	80	47	42	46	178	955	3,550	71	13	20
2	64	95	75	e43	44	43	235	866	3,370	61	17	16
3	82	92	65	e47	e45	42	240	903	2,520	75	17	14
4	81	75	56	e48	39	49	209	997	2,010	28	15	12
5	72	81	68	48	42	49	182	823	1,680	e20	14	16
6	69	68	56	e42	e41	52	177	710	1,270	e18	13	35
7	62	69	52	e44	e35	51	143	709	974	e14	12	45
8	52	90	45	e43	e35	55	74	668	821	e12	12	51
9	49	131	40	e44	e42	60	67	624	811	e9.4	12	60
10	45	127	28	48	e45	72	148	619	781	8.6	12	256
11	41	104	37	e48	e42	83	299	530	770	19	13	238
12	36	78	49	e46	e44	123	403	632	738	9.6	16	175
13	33	80	e55	e42	52	144	488	931	661	8.4	19	185
14	30	96	51	48	e57	173	856	1,130	571	6.2	41	171
15	25	87	50	e47	e59	178	963	1,820	569	5.6	13	137
16	33	65	51	e39	e53	187	624	2,180	574	e8.8	21	94
17	38	66	e53	e45	e49	182	610	2,870	473	e22	24	78
18	50	90	53	e42	e46	160	559	3,690	447	25	16	66
19	48	62	45	48	e44	146	456	3,990	410	24	12	69
20	45	73	e42	48	40	136	419	3,770	380	19	11	71
21	42	76	e50	49	e47	143	478	3,760	323	14	12	64
22	41	78	e45	48	e47	141	706	3,530	295	8.6	21	49
23	57	83	e37	45	e46	159	766	3,440	263	43	36	32
24	77	85	44	45	41	199	556	3,780	223	11	34	26
25	88	82	e47	47	e47	195	613	3,540	156	11	21	35
26	79	70	e42	45	47	189	963	3,090	127	9.0	16	41
27	94	47	e43	42	47	186	1,290	3,340	114	25	15	21
28	93	40	e43	43	48	157	1,420	3,950	110	22	14	21
29	94	62	e45	42	---	143	1,290	3,820	102	21	13	46
30	85	66	e45	39	---	143	1,050	e3,830	90	11	16	45
31	90	---	e41	43	---	148	---	3,110	---	8.4	18	---
TOTAL	1,865	2,407	1,533	1,395	1,266	3,834	16,462	68,607	25,183	648.6	539	2,189
MEAN	60.2	80.2	49.5	45.0	45.2	124	549	2,213	839	20.9	17.4	73.0
MAX	94	131	80	49	59	199	1,420	3,990	3,550	75	41	256
MIN	25	40	28	39	35	42	67	530	90	5.6	11	12
AC-FT	3,700	4,770	3,040	2,770	2,510	7,600	32,650	136,100	49,950	1,290	1,070	4,340
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2003, BY WATER YEAR (WY)
MEAN	41.9	82.0	59.1	53.8	53.8	105	616	1,348	413	18.4	17.9	30.1
MAX	60.2	87.9	71.1	61.2	58.9	124	1,042	2,213	839	23.7	33.3	73.0
(WY)	(2003)	(2001)	(2002)	(2002)	(2001)	(2003)	(2000)	(2003)	(2003)	(2000)	(2001)	(2003)
MIN	28.6	77.7	49.5	45.0	45.2	88.5	380	255	72.8	8.89	9.89	13.3
(WY)	(2002)	(2002)	(2003)	(2003)	(2003)	(2002)	(2002)	(2002)	(2002)	(2002)	(2002)	(2000)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 2000 - 2003
ANNUAL TOTAL	34,685.6	125,928.6
ANNUAL MEAN	95.0	345	227
HIGHEST ANNUAL MEAN			345 2003
LOWEST ANNUAL MEAN			94.0 2002
HIGHEST DAILY MEAN	626 Apr 11	3,990 May 19	3,990 May 19, 2003
LOWEST DAILY MEAN	4.4 Jul 19	5.6 Jul 15	4.4 Jul 19, 2002
ANNUAL SEVEN-DAY MINIMUM	6.0 Jul 14	9.5 Jul 10	6.0 Sep 13, 2000
MAXIMUM PEAK FLOW		4,770 May 19	4,770 May 19, 2003
MAXIMUM PEAK STAGE		4.85 May 19	4.85 May 19, 2003
ANNUAL RUNOFF (AC-FT)	68,800	249,800	164,500
10 PERCENT EXCEEDS	272	860	566
50 PERCENT EXCEEDS	58	55	60
90 PERCENT EXCEEDS	8.1	16	11

e Estimated.