Station list     Available data
ILLINOIS RIVER BASIN


415037087581700             OAK BROOK LIFT STATION AT OAK BROOK, IL



LOCATION.--Latitude 41°50'37", longitude 87°58'17", in SW1/4NE1/4NW1/4 sec.27, T.39 N., R.11 E., Du Page County.

PERIOD OF RECORD.--July 1997 to current year.

GAGE.--A 6-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, 2.90 in, October 17, 1998.

MAXIMUM FOR CURRENT YEAR.--Maximum, 2.90 in., October 17, 1998.
RAINFALL, IN INCHES, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 0.00 0.01 0.00 0.00 0.04 0.00 0.00 0.00 1.23 0.65 0.00 0.00
2 .50 .00 .00 .00 .16 .14 .00 .00 .03 .00 .00 .00
3 .00 .01 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00
4 .00 .09 .00 .00 .00 .00 .25 .02 .00 .00 .00 .00
5 .79 .00 .00 .00 .04 .00 .02 .05 .00 .00 .00 .00
6 .15 .00 1.01 .00 .00 .00 .05 .32 .22 .00 .00 .00
7 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .21 .00
8 .00 .06 .00 .00 .00 .00 1.20 .01 .00 .00 .00 .00
9 .00 .43 .00 .00 .00 s.01 .07 .00 .00 .24 .02 .00
10 .00 .62 .00 .00 .00 s.23 .14 .00 .03 .00 .00 .00
11 .00 .00 .00 .00 .33 .00 .00 1.35 e.54 .00 .00 .00
12 .00 .00 .00 .00 .00 .00 .00 .22 e.51 .00 .32 .20
13 .00 .00 .00 .00 .00 .00 .00 .00 e.88 .00 .09 .00
14 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
15 .03 .00 .00 .00 .00 .00 .94 .00 .00 .00 .00 .00
16 .00 .00 .00 s.32 .05 .00 .37 .00 .00 .00 .00 .00
17 2.90 .00 .00 .40 .00 .00 .00 .35 .00 .61 .00 .00
18 .23 .00 .00 .01 .00 .00 .08 .02 .00 .00 .02 .00
19 .00 .00 .00 .00 .00 .00 .00 .00 .00 .11 .39 .05
20 .00 .00 s.01 .00 .00 .00 .13 .00 .00 .05 .00 .00
21 .00 .00 s.01 .73 .00 .00 .04 .76 .00 .21 .00 .02
22 .00 .00 .00 .40 .00 .00 1.46 .01 .01 .00 .00 .00
23 .00 .00 s.01 .75 .00 .00 .29 .43 .34 .03 .41 .00
24 .00 .00 s.01 .05 .00 .00 .00 .00 .00 .00 .51 .00
25 .00 .02 .00 .01 s.15 .00 .00 .00 .00 .00 .63 .00
26 .00 .00 .00 .00 .22 .00 .00 .00 .00 .00 .00 .00
27 .47 .00 .00 .00 .14 .00 1.04 .00 .07 .00 .00 .52
28 .02 .00 .00 .00 .04 .00 .03 .00 .07 .00 .00 1.47
29 .12 .00 s.03 .00 -- .00 .00 .00 .00 .00 .00 .10
30 .01 .44 .00 .00 -- .00 .00 .00 .00 .00 .00 .00
31 .00 -- .00 .00 -- .00 -- .03 -- .00 .00 --

TOTAL 5.22 1.68 1.08 2.67 1.18 0.38 6.11 3.58 3.93 1.90 2.60 2.36
s Snowfall-affected precipitation
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data