GREEN RIVER BASIN

09255000 SLATER FORK NEAR SLATER, CO

LOCATION.--Lat 40°58'57", long 107°22'56", in SW14NE14 sec.21, T.12 N., R.89 W., Moffat County, Hydrologic Unit 14050003, on right bank 15 ft downstream from highway bridge, 1.0 mi upstream from mouth, and 1.5 mi south of Slater.

DRAINAGE AREA.--161 mi2.

PERIOD OF RECORD.--May to October, December 1910, March to October 1911, and April to May 1912 (published as Slater Creek), July 1931 to current year. 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=09255000

REVISED RECORDS.--WSP 618: 1910-11. WSP 764: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 6,600 ft above NGVD of 1929, from river-profile map. May 28, 1910 to May 25, 1912, nonrecording gage at site 1.5 mi upstream at different datum. July 9, 1931 to May 6, 1932, nonrecording gage at site 0.2 mi downstream at different datum.

REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions for irrigation of about 500 acres upstream 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	9.4	13	15	11	e12	17	39	197	809	17	4.2	4.8
2	12	13	15	11	e12	14	52	160	586	15	3.8	4.5
3	16	7.2	14	11	13	18	51	191	401	15	3.6	4.5
4	21	13	14	12	e12	18	34	220	295	14	3.7	4.5
5	23	14	14	12	12	17	32	216	228	13	3.9	4.4
6	25	13	13	11	13	17	30	168	202	11	4.0	4.4
7	25	14	12	11	15	17	27	180	188	13	3.4	4.7
8	26	15	11	11	16	20	24	195	146	11	2.6	6.0
9	26	15	11	11	17	18	29	171	140	13	2.2	6.6
10	26	14	11	10	16	20	42	153	143	13	1.9	6.7
11	25	14	12	11	16	22	68	126	180	10	1.8	8.3
12	25	12	13	11	16	26	93	134	144	8.8	1.8	10
13	24	15	14	11	17	29	108	219	117	9.6	1.9	11
14	24	15	14	11	e16	35	158	274	127	9.4	2.2	10
15	24	13	14	11	e17	37	185	411	113	9.4	2.4	9.7
16	24	10	13	11	18	35	132	455	103	8.9	2.4	9.4
17	24	15	14	11	17	34	107	546	109	8.2	2.8	8.9
18	24	16	14	11	17	28	102	597	96	7.3	4.1	9.2
19	24	15	12	10	16	25	70	529	83	6.5	5.6	9.5
20	23	15	10	10	16	24	61	393	92	5.9	6.1	9.5
21	11	14	15	10	16	23	75	375	84	5.3	5.7	9.4
22	9.9	14	15	10	16	24	106	389	63	4.8	5.0	9.1
23	12	15	12	10	16	26	143	435	54	4.1	4.9	8.9
24	14	16	12	10	17	37	113	488	44	3.7	6.1	8.9
25	14	12	11	10	17	27	170	536	40	3.5	6.3	8.6
26	14	5.6	11	9.6	17	29	208	512	35	3.3	6.2	8.4
27	12	8.8	11	9.9	18	30	222	549	30	3.6	6.0	7.7
28	12	13	11	12	16	24	232	577	27	3.9	5.6	7.5
29	13	14	11	11	---	22	286	584	22	4.0	4.9	7.3
30	11	14	11	11	---	26	294	625	20	4.2	4.6	7.3
31	13	---	10	e12	---	27	---	669	---	4.3	4.5	---
TOTAL	586.3	397.6	390	334.5	437	766	3,293	11,274	4,721	263.7	124.2	229.7
MEAN	18.9	13.3	12.6	10.8	15.6	24.7	110	364	157	8.51	4.01	7.66
MAX	26	16	15	12	18	37	294	669	809	17	6.3	11
MIN	9.4	5.6	10	9.6	12	14	24	126	20	3.3	1.8	4.4
AC-FT	1,160	789	774	663	867	1,520	6,530	22,360	9,360	523	246	456
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1932 - 2003, BY WATER YEAR (WY)
MEAN	20.0	19.2	17.5	17.3	18.7	29.7	120	380	247	36.9	9.75	11.5
MAX	62.4	49.2	44.1	36.9	46.5	144	323	801	660	189	38.4	55.0
(WY)	(1986)	(1985)	(1985)	(1985)	(1986)	(1998)	(1985)	(1984)	(1995)	(1983)	(1945)	(1984)
MIN	7.29	7.73	7.30	4.42	9.83	12.6	25.2	45.7	16.0	1.27	1.39	3.20
(WY)	(1934)	(1934)	(1932)	(1992)	(1981)	(1965)	(1933)	(1934)	(2002)	(1977)	(1994)	(1960)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1932 - 2003
ANNUAL TOTAL	10,976.3	22,817.0
ANNUAL MEAN	30.1	62.5	77.5
HIGHEST ANNUAL MEAN			157 1984
LOWEST ANNUAL MEAN			20.5 1934
HIGHEST DAILY MEAN	250 Apr 27	809 Jun 1	1,500 May 16, 1984
LOWEST DAILY MEAN	1.1 Jul 19	1.8 Aug 11	a0.00 Aug 2, 1934
ANNUAL SEVEN-DAY MINIMUM	1.3 Jul 14	2.0 Aug 9	0.00 Aug 2, 1934
MAXIMUM PEAK FLOW		1,030 Jun 1	b2,250 May 16, 1984
MAXIMUM PEAK STAGE		8.50 Jun 1	c11.78 May 16, 1984
ANNUAL RUNOFF (AC-FT)	21,770	45,260	56,140
10 PERCENT EXCEEDS	103	186	252
50 PERCENT EXCEEDS	14	14	20
90 PERCENT EXCEEDS	1.8	4.8	7.0

e Estimated. a Also occurred several days during years 1936, 1954, and 1977. b From rating curve extended above 1,000 ft3/s. c From floodmark.