Station list     Available data
ILLINOIS RIVER BASIN


05533400                         SAWMILL CREEK NEAR LEMONT, IL



LOCATION.--Latitude 41°42'28", longitude 87°57'45", in NE1/4SW1/4 sec.10, T.37 N., R.11 E., Du Page County, on concrete abutment on right bank, 50 ft upstream from bridge on Bluff Road at south edge of Argonne National Laboratory, 2.5 mi northeast of Lemont, and at mile 1.

PERIOD OF RECORD.--April 17, 1986 to current year.

GAGE.--An 8-in.-diameter, unheated, tipping-bucket rain gage

REMARKS.--Snowfall-affected data can result during cold weather when snow fills the rain-gage funnel and then melts as temperatures rise. Snowfall-affected data are subject to appreciable errors.

MAXIMUM FOR PERIOD OF RECORD.--Maximum recorded, 6.17 in., July 17, 1996 but may have been greater during periods of missing record.

MAXIMUM FOR WATER YEAR 1998.--Maximum, 3.92 in., August 4, 1998.
RAINFALL, IN INCHES, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY TOTAL VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 0.00 e0.03 0.01 s0.34 0.12 0.00 0.32 0.00 0.00 0.00 0.00 0.00
2 .00 e.00 .00 s.06 .00 s.02 .00 e.01 .00 .00 .00 .00
3 .00 e.11 .10 .63 .00 s.02 .00 e.02 .26 1.09 .90 .20
4 e.08 e.01 .00 .30 .00 s.25 .00 e.07 .00 .00 3.92 .00
5 e.00 e.10 .00 .55 .00 s.09 .00 e.25 .07 .00 .24 .00
6 e.00 e.13 .00 .17 .00 .01 .00 e.53 .08 .00 .03 e.57
7 e.00 e.00 .00 .17 .00 .01 .57 e1.68 .00 2.23 .33 2.77
8 e.00 e.00 .00 s.28 .00 .77 .34 e.05 .07 .00 .00 .00
9 e.06 e.00 s.02 s.02 .00 s.24 .02 .00 .98 .00 .00 .00
10 e.00 e.01 s.33 .00 .14 .00 .00 .00 .01 .00 .00 .00
11 e.00 .00 s.10 .00 .70 .00 .00 .00 1.42 .00 .00 .00
12 e.01 .00 .00 .00 .00 .00 .00 .17 .00 .00 .00 .00
13 e.35 .00 .00 .00 .00 s.31 .52 .42 .00 .00 .00 .00
14 e.00 s.21 s.07 .00 .00 .00 .00 .00 .03 .00 .00 .57
15 e.00 .00 s.09 .00 .00 .00 .04 .00 .00 .00 .01 .02
16 e.00 .00 .00 .00 .20 s.09 .04 .00 .12 .00 .00 .00
17 e.00 .00 .00 .00 .34 .86 .00 .00 .00 .00 .00 .00
18 e.00 .00 .00 .00 .03 .21 .00 .00 .46 .00 .00 .00
19 e.00 .00 .00 .00 .00 .02 .00 .00 .00 .53 .00 .00
20 e.00 s.01 .00 .00 .01 .00 .60 .00 .00 .06 .00 .46
21 e.00 .00 .00 .00 .00 .00 .20 .00 .00 .03 .39 .01
22 e.00 .00 .20 .00 .00 .00 .01 .00 .00 .21 .03 .00
23 e.00 .00 .01 s.01 .00 .00 .00 .02 .00 .00 .00 .00
24 e.22 .00 s.15 .00 .18 .00 .00 .55 .00 .00 .70 .03
25 e.00 .00 s.24 .00 .00 .00 .19 .00 .00 .00 .07 .01
26 e.94 .00 s.01 s.13 .01 .00 .39 .00 e2.38 .00 .00 .00
27 e.24 .58 .00 s.12 .10 .00 .00 .00 .00 .00 .00 .00
28 e.00 .05 .00 s.25 .03 .25 .06 .10 .21 .00 .41 .00
29 e.00 .20 .00 s.18 -- .00 .26 .10 .14 .00 .00 .07
30 e.00 .00 .00 .00 -- .00 .04 .00 .00 .00 .00 .55
31 e.00 -- .00 .00 -- .84 -- .00 -- .00 .00 --

TOTAL 1.90 1.44 1.33 3.21 1.86 3.99 3.60 3.97 6.23 4.15 7.03 5.26
s Snowfall-affected precipitation
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data