WILLIAMS FORK BASIN

09037500 WILLIAMS FORK NEAR PARSHALL, CO

LOCATION.--Lat 40°00'01", long 106°10'45", in SW 14 SW 14 sec.31, T.1 N., R.78 W., Grand County, Hydrologic Unit 14010001, on left bank 30 ft downstream from bridge on State Highway 286, 3.7 mi downstream from Skylark Creek, 3.9 mi south of Parshall, and 4.2 mi upstream from Williams Fork Reservoir Dam.

DRAINAGE AREA.--184 mi2.

PERIOD OF RECORD.--July 1904 to September 1924, June 1933 to current year. Records since May 10, 1940, equivalent to earlier records if diversion to August P. Gumlick Tunnel is added to flow past station. Published as "near (Hot) Sulphur Springs", 1904-12, and as Williams River near Parshall,
June 1933 to September 1958. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09037500

REVISED RECORDS.--WSP 1243: 1918. WSP 2124: Drainage area.

GAGE.--Water-stage recorder with satellite telemetry. Datum of gage is 7,808.95 ft above NGVD of 1929, (Denver Board of Water Commissioners Datum). See WSP 1733 for history of changes prior to Aug. 9, 1938. Aug. 10, 1938 to Aug. 19, 1983, gage located on right bank at present datum. Aug. 19, 1983 to May 14, 1991, gage located 120 ft downstream of present site on left bank at present datum.

REMARKS.--Records fair except for estimated daily discharges, which are poor. Transmountain diversion upstream from station through August P. Gumlick Tunnel (station 09035000). Diversions for irrigation of about 1,300 acres upstream from station, and about 2,500 acres downstream from station. About 150 acres upstream from station irrigated by diversions into the drainage area. 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	25	38	e38	e31	e30	e31	35	136	e1,500	407	21	42
2	25	38	e38	e31	e30	e31	39	124	e1,260	380	21	37
3	26	36	e38	e32	e30	e31	40	130	e1,160	340	21	35
4	26	e35	e37	e32	e29	e31	38	144	e1,040	272	27	37
5	24	e35	e37	e31	e29	e31	36	125	e952	216	21	34
6	15	e36	e37	e31	e29	e31	35	115	e873	194	21	39
7	15	e36	e37	e30	e29	e31	33	114	e811	153	21	52
8	15	e36	e36	e30	e30	e31	33	120	e739	105	21	71
9	15	e37	e36	e30	e30	e31	35	114	e768	81	21	97
10	14	e37	e36	e30	e30	e31	43	125	e808	73	21	95
11	14	e37	e36	e30	e30	e32	54	106	e833	67	23	107
12	14	e36	e35	e30	e30	e32	68	117	e830	51	23	88
13	14	e36	e36	e30	e30	e32	77	e158	e818	41	23	78
14	21	e36	e36	e30	e30	e32	95	e192	e822	34	23	72
15	34	e34	e36	e30	e30	e32	102	e248	e819	31	22	67
16	35	e36	e35	e30	e30	e32	86	e284	e786	26	24	59
17	34	e36	e35	e30	e30	e32	86	e364	e773	24	55	56
18	34	e36	e35	e31	e30	e32	84	e418	e773	25	90	59
19	33	e35	e34	e31	e30	e32	74	e438	e783	24	68	61
20	32	e36	e34	e31	e30	e32	70	e439	e763	24	71	58
21	32	e36	e34	e31	e30	e33	74	e442	e735	23	61	54
22	33	e35	e33	e30	e31	e32	80	e441	e714	24	38	50
23	37	e36	e32	e30	e31	e32	87	e523	e655	23	40	44
24	37	e36	e32	e30	e31	e32	76	e610	e643	22	88	e42
25	35	e36	e32	e30	e31	e32	82	e723	e588	22	70	39
26	34	e34	e32	e30	e31	e31	108	e707	526	23	70	43
27	35	e36	e31	e30	e31	31	132	e729	500	24	52	47
28	34	e36	e31	e30	e31	30	143	e1,060	469	23	48	46
29	34	e37	e31	e30	---	30	149	1,210	457	26	42	45
30	30	e37	e31	e29	---	32	146	e1,300	428	22	46	46
31	35	---	e31	e30	---	32	---	e1,310	---	21	53	---
TOTAL	841	1,081	1,072	941	843	977	2,240	13,066	23,626	2,821	1,246	1,700
MEAN	27.1	36.0	34.6	30.4	30.1	31.5	74.7	421	788	91.0	40.2	56.7
MAX	37	38	38	32	31	33	149	1,310	1,500	407	90	107
MIN	14	34	31	29	29	30	33	106	428	21	21	34
AC-FT	1,670	2,140	2,130	1,870	1,670	1,940	4,440	25,920	46,860	5,600	2,470	3,370
a	294	222	167	169	115	109	40	0	0	2,388	1,035	978
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1905 - 2003, BY WATER YEAR (WY)
MEAN	60.0	50.9	42.1	37.0	35.1	39.4	79.8	271	554	212	85.9	61.8
MAX	151	80.9	65.6	59.5	53.9	87.8	199	711	1,243	855	245	153
(WY)	(1962)	(1985)	(1985)	(1910)	(1912)	(1910)	(1962)	(1984)	(1918)	(1983)	(1984)	(1909)
MIN	17.6	32.5	26.8	22.6	22.6	21.5	29.9	28.9	38.6	15.9	13.8	11.1
(WY)	(1956)	(1982)	(1950)	(1964)	(1964)	(1971)	(1981)	(1963)	(1954)	(2002)	(1988)	(1966)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1905 - 2003
ANNUAL TOTAL	12,862	50,454
ANNUAL MEAN	35.2	b146	b133
HIGHEST ANNUAL MEAN			c248 1984
LOWEST ANNUAL MEAN			c38.4 2002
HIGHEST DAILY MEAN	180 Jun 1	e1,500 Jun 1	d2,520 Jun 14, 1918
LOWEST DAILY MEAN	13 Jul 18	14 Oct 10	f4.8 May 6, 1972
ANNUAL SEVEN-DAY MINIMUM	13 Aug 24	14 Oct 7	5.1 May 6, 1972
MAXIMUM PEAK FLOW		not determined	d2,620 Jun 14, 1918
MAXIMUM PEAK STAGE		not determined	6.05 Jun 14, 1918
ANNUAL RUNOFF (AC-FT)	25,510	b105,800	b96,360
10 PERCENT EXCEEDS	70	481	342
50 PERCENT EXCEEDS	30	35	52
90 PERCENT EXCEEDS	14	24	29

e Estimated. a Diversions in acre-ft through August P. Gumlick Tunnel provided by Denver Water Board. b Includes diversions through August P. Gumlick Tunnel. c Does not include diversions through August P. Gumlick Tunnel. d Site and datum then in use, from rating curve extended above 1,400 ft3/s. f Also occurred May 8-10, 1972.