BLUE RIVER BASIN

09051050 STRAIGHT CREEK BELOW LASKEY GULCH, NEAR DILLON, CO

LOCATION.--Lat 39°38'23", long 106°02'23", in SW14SW14 sec.5, T.5 S., R.77 W., Summit County, Hydrologic Unit 14010002, on right bank, 120 ft upstream from culverts on Deer Trail Drive, in the community of Dillon Valley, 0.9 mi north of Dillon, 1.1 mi downstream of Laskey Gulch, and 1.8 mi upstream from mouth.

DRAINAGE AREA.--18.3 mi2.

PERIOD OF RECORD.--October 1986 to current year. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09051050

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 9,070 ft above NGVD of 1929, from topographic map.

REMARKS.--Records good except for estimated daily discharges, which are poor. Diversion upstream from station for municipal purposes downstream 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	3.7	2.9	e4.3	e3.2	e3.6	e2.3	e2.8	8.9	148	52	13	10
2	4.0	2.5	e4.3	e3.2	e3.5	e2.2	e2.8	8.0	123	50	12	10
3	4.8	2.6	e4.3	e3.1	e3.4	e2.2	e2.7	8.2	120	48	15	10
4	4.3	e2.6	e4.4	e3.1	e3.4	e2.2	e2.7	8.6	92	46	16	9.7
5	3.7	e2.7	e4.3	e3.1	e3.3	e2.2	e2.6	8.1	76	43	14	9.6
6	3.8	e2.8	e4.1	e3.1	e3.3	e2.2	e2.6	7.2	68	39	13	13
7	3.7	e2.9	e4.1	e3.1	e3.3	e2.1	e2.6	6.8	61	35	15	14
8	3.8	e3.0	e4.0	e3.1	e3.2	e2.1	e3.8	5.7	62	32	14	12
9	3.4	e3.3	e3.9	e3.2	e3.2	e2.0	e4.1	5.5	66	29	13	17
10	3.4	e3.7	e3.8	e3.2	e3.1	e2.2	e4.8	5.8	70	27	12	15
11	3.1	e3.9	e3.6	e3.3	e3.1	e2.2	e5.5	5.5	68	25	12	14
12	2.3	e4.3	e3.6	e3.3	e3.0	e2.2	7.4	6.3	64	24	12	13
13	2.4	e4.4	e3.6	e3.3	e3.0	e2.2	8.1	7.7	62	22	11	13
14	2.3	e4.4	e3.5	e3.3	e2.9	e2.2	10	9.8	61	20	11	12
15	2.3	e4.4	e3.5	e3.4	e2.9	e2.2	7.8	12	63	20	10	12
16	2.3	e4.4	e3.5	e3.4	e2.8	e2.2	7.9	16	67	21	14	12
17	2.1	e4.3	e3.5	e3.5	e2.8	e2.2	7.1	23	65	20	16	11
18	2.3	e4.3	e3.5	e3.5	e2.7	e2.3	6.6	27	73	19	20	11
19	2.3	e4.3	e3.5	e3.6	e2.7	e2.3	6.1	28	124	18	13	11
20	2.3	e4.3	e3.5	e3.6	e2.7	e2.3	6.2	26	126	17	11	11
21	2.4	e4.3	e3.5	e3.6	e2.6	e2.3	6.5	28	105	16	11	11
22	2.7	e4.2	e3.5	e3.6	e2.6	e2.4	7.1	36	92	15	10	11
23	2.5	e4.2	e3.5	e3.6	e2.5	e2.4	6.5	46	88	14	14	10
24	2.7	e4.2	e3.5	e3.6	e2.5	e2.5	5.5	54	81	14	14	10
25	2.5	e4.2	e3.5	e3.6	e2.4	e2.5	7.9	60	73	15	14	9.9
26	2.5	e4.2	e3.4	e3.6	e2.4	e2.6	10	65	68	17	12	9.6
27	2.5	e4.2	e3.4	e3.6	e2.4	e2.6	11	90	64	16	11	9.5
28	2.6	e4.2	e3.3	e3.6	e2.3	e2.7	10	136	61	15	11	8.6
29	2.1	e4.2	e3.3	e3.6	---	e2.7	10	113	58	15	10	8.0
30	2.2	e4.2	e3.2	e3.6	---	e2.7	9.9	105	55	14	13	7.8
31	2.7	---	e3.2	e3.6	---	e2.8	---	108	---	14	11	---
TOTAL	89.7	114.1	114.1	105.2	81.6	72.2	188.6	1,075.1	2,404	772	398	335.7
MEAN	2.89	3.80	3.68	3.39	2.91	2.33	6.29	34.7	80.1	24.9	12.8	11.2
MAX	4.8	4.4	4.4	3.6	3.6	2.8	11	136	148	52	20	17
MIN	2.1	2.5	3.2	3.1	2.3	2.0	2.6	5.5	55	14	10	7.8
AC-FT	178	226	226	209	162	143	374	2,130	4,770	1,530	789	666
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 2003, BY WATER YEAR (WY)
MEAN	7.09	5.69	4.49	3.88	3.75	3.88	6.33	26.4	63.7	29.4	12.4	8.11
MAX	12.2	8.77	6.99	5.54	6.40	7.32	9.99	63.1	119	89.0	23.6	13.3
(WY)	(1996)	(1996)	(1996)	(1996)	(1996)	(1996)	(1989)	(1996)	(1996)	(1995)	(1995)	(1995)
MIN	2.89	3.80	3.20	2.43	2.39	2.33	3.55	9.45	10.0	3.45	3.03	2.31
(WY)	(2003)	(2003)	(2001)	(1992)	(1992)	(2003)	(1995)	(1995)	(2002)	(2002)	(2002)	(2002)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1987 - 2003
ANNUAL TOTAL	1,636.1	5,750.3
ANNUAL MEAN	4.48	15.8	14.6
HIGHEST ANNUAL MEAN			25.5 1996
LOWEST ANNUAL MEAN			4.89 2002
HIGHEST DAILY MEAN	22 Jun 1	148 Jun 1	226 Jun 17, 1995
LOWEST DAILY MEAN	1.3 Aug 20	e2.0 Mar 9	1.3 Aug 20, 2002
ANNUAL SEVEN-DAY MINIMUM	1.6 Aug 20	e2.1 Mar 3	1.6 Aug 20, 2002
MAXIMUM PEAK FLOW		289 Jun 19	a416 Jun 17, 1995
MAXIMUM PEAK STAGE		5.59 Jun 19	5.78 Jun 17, 1995
ANNUAL RUNOFF (AC-FT)	3,250	11,410	10,580
10 PERCENT EXCEEDS	8.7	56	38
50 PERCENT EXCEEDS	3.2	4.3	6.4
90 PERCENT EXCEEDS	2.2	2.4	3.3

e Estimated. a From rating curve extended above 150 ft3/s.