PLATTE RIVER BASIN

06618480 ILLINOIS RIVER BELOW POTTER CREEK NEAR WALDEN, CO

LOCATION.--Lat 40°42'31", long 106°16'47", in SW14NW14 sec.32, T.9 N., R.79 W., Jackson County, Hydrologic Unit 10180001, on left bank 500 ft downstream from Potter Creek, and 1.5 mi south of Walden.

DRAINAGE AREA.--257 mi2, of which about 0.33 mi2 is probably non-contributing.

PERIOD OF RECORD.--August 2001 to current year (seasonal records only). For a complete listing of historical data available for this site, see
http://waterdata.usgs.gov/co/nwis/inventory/?site_no=06618480

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 8,070 ft above NGVD of 1929, from topographic map.

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

EXTREMES FOR PERIOD OF RECORD (seasonal only).--Maximum discharge, 423 ft3/s, June 3, 2003, gage height, 7.63 ft; no flow many days.

EXTREMES FOR CURRENT YEAR (seasonal only).--Maximum discharge, 423 ft3/s, June 3, gage height, 7.63 ft; no flow many days.

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	---	---	---	---	---	---	e4.9	42	385	18	0.00	0.00
2	---	---	---	---	---	---	e5.2	30	400	13	0.00	0.00
3	---	---	---	---	---	---	e5.4	23	414	9.7	0.00	0.00
4	---	---	---	---	---	---	e5.8	16	404	7.3	0.00	0.00
5	---	---	---	---	---	---	e5.7	13	357	5.3	0.00	0.00
6	---	---	---	---	---	---	e5.9	16	287	3.8	0.00	0.00
7	---	---	---	---	---	---	e6.0	17	229	2.9	0.00	0.00
8	---	---	---	---	---	---	e6.6	12	204	2.4	0.00	0.00
9	---	---	---	---	---	---	e7.3	9.4	182	2.3	0.00	0.00
10	---	---	---	---	---	---	9.4	9.4	130	2.1	0.00	0.00
11	---	---	---	---	---	---	9.0	10	109	2.1	0.00	0.00
12	---	---	---	---	---	---	9.6	14	105	1.8	0.00	0.00
13	---	---	---	---	---	---	11	15	106	0.86	0.00	0.00
14	---	---	---	---	---	---	15	14	105	0.43	0.00	0.00
15	---	---	---	---	---	---	38	11	132	0.67	0.00	0.00
16	---	---	---	---	---	---	50	8.8	135	0.34	0.00	0.00
17	---	---	---	---	---	---	41	6.8	104	0.28	0.00	0.00
18	---	---	---	---	---	---	37	5.9	102	0.46	0.00	0.00
19	---	---	---	---	---	---	36	18	108	1.3	0.00	0.00
20	---	---	---	---	---	---	27	45	99	2.2	0.00	0.00
21	---	---	---	---	---	---	19	53	93	0.80	0.00	0.00
22	---	---	---	---	---	---	16	59	93	0.34	0.00	0.00
23	---	---	---	---	---	---	18	68	78	0.53	0.00	0.00
24	---	---	---	---	---	---	25	73	58	0.24	0.00	0.00
25	---	---	---	---	---	---	25	94	51	0.00	0.00	0.00
26	---	---	---	---	---	---	29	148	47	0.00	0.00	0.00
27	---	---	---	---	---	---	59	215	44	0.00	0.00	0.00
28	---	---	---	---	---	---	88	241	38	0.00	0.00	0.00
29	---	---	---	---	---	---	72	243	31	0.00	0.00	0.00
30	---	---	---	---	---	---	54	283	24	0.00	0.00	0.00
31	---	---	---	---	---	---	---	335	---	0.00	0.00	---
TOTAL	---	---	---	---	---	---	740.8	2,148.3	4,654	79.15	0.00	0.00
MEAN	---	---	---	---	---	---	24.7	69.3	155	2.55	0.000	0.000
MAX	---	---	---	---	---	---	88	335	414	18	0.00	0.00
MIN	---	---	---	---	---	---	4.9	5.9	24	0.00	0.00	0.00
AC-FT	---	---	---	---	---	---	1,470	4,260	9,230	157	0.00	0.00

e Estimated.