PLATTE RIVER BASIN

06618300 ILLINOIS RIVER BELOW ISH BALDWIN DITCH NEAR WALDEN, CO

LOCATION.--Lat 40°34'32", long 106°14'28", in NW14SE14 sec.15, T.7 N., R.79 W., Jackson County, Hydrologic Unit 10180001, on right bank, 200 ft below Ish Baldwin Ditch diversion and 9.7 mi north-northwest of Rand, and 11mi south-southeast of Walden.

DRAINAGE AREA.--181 mi2.

PERIOD OF RECORD.--April 2002 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=06618300

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 8295 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 upstream diversions and
return flow.

EXTREMES FOR PERIOD OF RECORD (seasonal only).--Maximum discharge, 500 ft3/s, June 2, 2003, gage height 7.21 ft; no flow many days.

EXTREMES FOR CURRENT YEAR (seasonal only).--Maximum discharge, 500 ft3/s, June 2, gage height, 7.21 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	---	---	---	---	---	---	e4.3	19	430	1.5	3.6	5.5
2	---	---	---	---	---	---	e4.5	7.4	482	0.63	2.5	5.2
3	---	---	---	---	---	---	e4.9	4.6	398	0.18	1.9	3.8
4	---	---	---	---	---	---	e5.1	7.8	271	0.01	1.8	2.5
5	---	---	---	---	---	---	e5.5	18	175	0.00	5.2	1.6
6	---	---	---	---	---	---	e5.3	10	117	0.00	3.2	1.5
7	---	---	---	---	---	---	e6.7	2.7	110	0.00	2.2	2.1
8	---	---	---	---	---	---	e7.8	1.2	113	0.00	1.5	3.9
9	---	---	---	---	---	---	e12	0.88	73	0.00	1.5	4.7
10	---	---	---	---	---	---	e12	1.5	55	0.00	1.8	4.7
11	---	---	---	---	---	---	e12	3.7	62	0.00	1.4	3.9
12	---	---	---	---	---	---	e14	5.4	64	0.00	0.70	4.3
13	---	---	---	---	---	---	e20	2.2	59	0.00	0.01	4.6
14	---	---	---	---	---	---	e36	1.0	100	0.00	0.00	4.3
15	---	---	---	---	---	---	e64	0.71	79	0.00	0.00	3.4
16	---	---	---	---	---	---	e52	3.2	57	0.00	0.00	2.7
17	---	---	---	---	---	---	e44	11	55	0.00	0.00	2.4
18	---	---	---	---	---	---	37	25	55	0.00	8.3	1.8
19	---	---	---	---	---	---	16	66	47	0.00	16	1.8
20	---	---	---	---	---	---	11	72	48	1.8	11	2.0
21	---	---	---	---	---	---	8.4	74	52	4.7	5.8	2.4
22	---	---	---	---	---	---	12	81	41	2.9	3.6	2.1
23	---	---	---	---	---	---	18	96	34	1.3	3.6	1.8
24	---	---	---	---	---	---	9.8	116	27	9.4	4.8	1.8
25	---	---	---	---	---	---	8.5	180	26	9.8	4.0	1.8
26	---	---	---	---	---	---	59	241	25	8.6	5.1	3.3
27	---	---	---	---	---	---	96	234	20	8.8	4.9	2.3
28	---	---	---	---	---	---	81	233	15	8.5	4.0	1.9
29	---	---	---	---	---	---	56	347	6.8	7.3	3.4	1.9
30	---	---	---	---	---	---	37	417	3.3	7.3	2.8	1.9
31	---	---	---	---	---	---	---	459	---	5.2	2.9	---
TOTAL	---	---	---	---	---	---	759.8	2,741.29	3,100.1	77.92	107.51	87.9
MEAN	---	---	---	---	---	---	25.3	88.4	103	2.51	3.47	2.93
MAX	---	---	---	---	---	---	96	459	482	9.8	16	5.5
MIN	---	---	---	---	---	---	4.3	0.71	3.3	0.00	0.00	1.5
AC-FT	---	---	---	---	---	---	1,510	5,440	6,150	155	213	174

e Estimated.