GUNNISON RIVER BASIN

09143500 SURFACE CREEK AT CEDAREDGE, CO

LOCATION.--Lat 38°54'06", long 107°55'14", in SW14SE14 sec.20, T.13 S., R.94 W., Delta County, Hydrologic Unit 14020005, on left bank at Cedaredge, 700 ft east of State Highway 65, and 8.5 mi upstream from mouth.

DRAINAGE AREA.--39.0 mi2.

PERIOD OF RECORD.--October 1916 to September 1999. October 1999 to current year (seasonal records only). Monthly discharge only for some periods, published in WSP 1313. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09143500

REVISED RECORDS.--WRD CO-83-2: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry and concrete control. Elevation of gage is 6,220 ft above NGVD of 1929, from topographic map. Prior to June 8, 1917, nonrecording gage at present site at datum 0.50 ft higher.

REMARKS.--Records good except for estimated daily discharges, which are poor. Natural flow of stream affected by diversions to and from nearby streams, many small storage reservoirs, diversions for irrigation, and return flow from irrigated areas. 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.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,190 ft3/s, May 13, 1941, gage height, 2.50 ft from rating curve extended above 640 ft3/s; maximum gage height, 3.10 ft, May 21, 1993; minimum daily, no flow at times some years.

EXTREMES FOR CURRENT YEAR (seasonal only).--Maximum discharge during period of operation, 155 ft3/s, May 18, gage height, 1.94 ft; minimum daily, 4.5 ft3/s, Oct. 20.

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	8.8	---	---	---	---	---	9.5	67	89	25	18	22
2	e7.6	---	---	---	---	---	10	69	83	30	18	20
3	e10	---	---	---	---	---	9.1	79	68	30	18	21
4	e9.4	---	---	---	---	---	8.4	76	63	29	13	20
5	e10	---	---	---	---	---	7.6	55	62	28	12	15
6	e11	---	---	---	---	---	7.4	51	64	27	27	17
7	e11	---	---	---	---	---	7.0	55	64	27	26	22
8	e11	---	---	---	---	---	6.9	52	64	23	23	14
9	e10	---	---	---	---	---	11	49	61	22	21	13
10	e8.0	---	---	---	---	---	24	47	61	25	23	28
11	e7.2	---	---	---	---	---	36	43	59	28	30	21
12	6.8	---	---	---	---	---	43	59	55	25	30	20
13	6.0	---	---	---	---	---	51	65	53	24	32	21
14	5.5	---	---	---	---	---	63	63	50	29	32	19
15	5.1	---	---	---	---	---	60	77	51	28	21	18
16	4.9	---	---	---	---	---	43	78	50	29	18	16
17	4.8	---	---	---	---	---	49	87	46	29	17	17
18	5.6	---	---	---	---	---	42	110	46	19	17	17
19	4.6	---	---	---	---	---	33	103	46	17	17	18
20	4.5	---	---	---	---	---	31	88	54	15	18	17
21	4.6	---	---	---	---	---	34	82	46	17	17	17
22	5.9	---	---	---	---	---	46	78	40	18	23	16
23	7.6	---	---	---	---	---	42	80	36	20	23	15
24	9.4	---	---	---	---	---	29	75	29	16	22	15
25	13	---	---	---	---	---	46	72	27	14	29	14
26	11	---	---	---	---	---	75	65	26	14	27	17
27	10	---	---	---	---	---	81	71	27	13	32	16
28	8.9	---	---	---	---	---	84	77	25	13	34	16
29	11	---	---	---	---	---	73	96	22	12	34	13
30	9.8	---	---	---	---	---	68	90	24	12	35	12
31	9.7	---	---	---	---	---	---	80	---	9.9	34	---
TOTAL	252.7	---	---	---	---	---	1,129.9	2,239	1,491	667.9	741	527
MEAN	8.15	---	---	---	---	---	37.7	72.2	49.7	21.5	23.9	17.6
MAX	13	---	---	---	---	---	84	110	89	30	35	28
MIN	4.5	---	---	---	---	---	6.9	43	22	9.9	12	12
AC-FT	501	---	---	---	---	---	2,240	4,440	2,960	1,320	1,470	1,050

e Estimated.