PLATTE RIVER BASIN

06720990 BIG DRY CREEK AT MOUTH NEAR FORT LUPTON, CO

LOCATION.--Lat 40°04'09", long 104°49'52", in NE14SE14 sec.12, T.1 N., R.67 W., Weld County, Hydrologic Unit 10190003, on right bank 1.0 mi west of State Highway 85, 1.1 mi south of State Highway 52, and 1.2 mi southwest of Ft. Lupton.

DRAINAGE AREA.--107 mi2.

PERIOD OF RECORD.--October 1991 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06720990

GAGE.--Water-stage recorder. Elevation of gage is 4,900 ft above NGVD of 1929, from topographic map.

REMARKS.--Records fair except for estimated daily discharges, which are poor. Natural flow of stream affected by 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.

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	32	42	26	9.9	25	23	e59	e50	19	37	26	25
2	56	42	26	11	26	23	e58	e44	20	33	26	12
3	62	38	26	9.8	28	22	e57	e42	19	31	21	35
4	46	36	28	9.2	31	21	e56	e40	27	25	17	36
5	33	29	26	12	29	22	48	e38	38	22	19	47
6	30	28	e26	19	29	20	54	e37	31	115	21	49
7	32	28	e27	21	28	19	68	e34	44	112	19	47
8	33	28	e27	20	26	22	39	e32	43	92	18	50
9	34	29	e28	20	28	22	36	e30	30	49	23	45
10	35	28	e27	e21	29	17	68	170	22	43	16	43
11	34	28	e28	e21	25	14	61	285	e16	76	9.4	38
12	31	25	e29	e20	20	15	44	146	12	76	9.8	48
13	32	24	e30	19	15	23	41	92	12	71	13	44
14	36	28	e29	17	14	25	35	75	21	63	12	42
15	37	28	e30	15	15	35	33	97	22	60	13	41
16	34	28	e31	16	19	37	27	123	20	59	13	41
17	33	30	29	18	19	37	26	69	18	55	11	40
18	33	33	28	20	18	74	22	42	88	55	11	40
19	32	31	29	20	18	96	40	31	116	62	17	40
20	33	31	29	20	18	104	79	35	66	34	13	40
21	34	30	28	27	16	138	46	32	58	43	9.5	38
22	36	29	23	26	15	162	33	27	34	45	16	34
23	42	28	22	25	16	157	57	24	29	38	27	34
24	46	33	21	27	e16	188	272	21	42	35	43	31
25	44	33	e19	27	e16	135	193	e18	37	37	42	30
26	42	29	e20	28	e16	154	119	e17	33	32	30	30
27	40	27	e19	28	e13	157	93	e16	35	29	29	29
28	40	27	21	25	20	102	75	e17	32	26	34	28
29	38	28	22	17	---	73	e59	25	33	27	36	27
30	56	27	22	26	---	67	e54	20	37	29	74	26
31	50	---	13	26	---	63	---	17	---	27	93	---
TOTAL	1,196	905	789	620.9	588	2,067	1,952	1,746	1,054	1,538	761.7	1,110
MEAN	38.6	30.2	25.5	20.0	21.0	66.7	65.1	56.3	35.1	49.6	24.6	37.0
MAX	62	42	31	28	31	188	272	285	116	115	93	50
MIN	30	24	13	9.2	13	14	22	16	12	22	9.4	12
AC-FT	2,370	1,800	1,560	1,230	1,170	4,100	3,870	3,460	2,090	3,050	1,510	2,200
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1992 - 2003, BY WATER YEAR (WY)
MEAN	38.2	28.5	23.5	24.6	23.0	34.1	54.9	57.3	51.9	49.4	41.3	44.2
MAX	64.3	39.1	35.2	46.0	34.6	66.7	79.1	93.8	117	111	75.1	67.0
(WY)	(1995)	(2001)	(1998)	(2001)	(2001)	(2003)	(1999)	(2001)	(1995)	(1995)	(1997)	(1993)
MIN	20.3	15.5	19.6	14.0	12.0	18.4	27.8	26.4	27.2	20.6	10.5	21.2
(WY)	(2002)	(2002)	(1994)	(1995)	(1995)	(1993)	(2002)	(1993)	(2002)	(2002)	(2002)	(2000)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1992 - 2003
ANNUAL TOTAL	9,801.6	14,327.6
ANNUAL MEAN	26.9	39.3	39.3
HIGHEST ANNUAL MEAN			53.2 1995
LOWEST ANNUAL MEAN			24.1 2002
HIGHEST DAILY MEAN	140 May 25	285 May 11	454 Jul 31, 1997
LOWEST DAILY MEAN	2.1 Aug 15	9.2 Jan 4	0.32 Apr 18, 1994
ANNUAL SEVEN-DAY MINIMUM	6.4 Aug 9	12 Aug 11	3.6 Sep 3, 1992
MAXIMUM PEAK FLOW		324 Apr 24	541 Aug 6, 1997
MAXIMUM PEAK STAGE		7.70 Apr 24	9.04 Aug 6, 1997
ANNUAL RUNOFF (AC-FT)	19,440	28,420	28,480
10 PERCENT EXCEEDS	41	68	70
50 PERCENT EXCEEDS	26	30	29
90 PERCENT EXCEEDS	13	16	16

e Estimated.