Station list     Available data
ILLINOIS RIVER BASIN


415356087575000       ELMHURST QUARRY AT ELMHURST, IL



LOCATION.-- Latitude 41°53'56", longitude 87°57'50", in SE1/4SW1/4NE sec.3, T.39 N., R.11 E., Du Page County Hydrologic Unit 07120004, on the Du Page County Flood Control Project service road 50 ft west of State Highway 83, and located on top of the flood control building at Elmhurst.

PERIOD OF RECORD.--
PRECIPITATION: July 1997 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.

EXTREMES FOR PERIOD OF RECORD.--
PRECIPITATION: Maximum, 2.78 in., October 17, 1998.

EXTREMES FOR CURRENT YEAR.--Maximum, 2.46 in., September 11, 2000.

PRECIPITATION, TOTAL, INCHES, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY SUM VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 0.00 0.00 0.00 0.00 0.00 0.03 0.00 0.08 0.27 0.00 e0.12 0.00
2 .03 .00 .00 .02 .00 .00 .01 .00 .00 1.54 e.16 .00
3 .75 .00 .17 .25 s.14 .00 .00 .00 .00 .21 .00 .00
4 .00 .00 1.00 .00 s.01 .00 .00 .00 .03 .00 .00 .00
5 .00 .00 .74 .00 .00 .00 .00 .00 .31 .00 e.37 .00
6 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 e.60 .00
7 .00 .00 .00 .00 .00 .00 .41 .00 .00 .00 .00 .00
8 .00 .00 .00 .01 .00 .04 .12 1.21 .00 .00 .00 .01
9 .00 .00 .04 .10 .00 .00 .00 .65 .00 .01 .00 .00
10 .00 .00 .01 .11 .00 .00 .06 .00 .00 .93 .00 .00
11 .00 .00 .00 .00 .00 .00 .01 .28 .59 .00 .00 2.46
12 .00 .00 .00 .00 .00 .00 .00 .86 e.49 .01 .00 .26
13 .00 .00 .00 .00 .00 .01 .00 .00 e.25 .00 .00 .00
14 .00 .00 .05 .00 .00 .00 .00 .00 .96 .00 .00 .42
15 .00 .00 .12 .00 .00 .48 .00 .00 .00 .00 .00 .00
16 .13 .00 .01 .00 .00 .00 .85 .21 .08 .00 .00 .00
17 .00 .00 .00 .00 .00 .00 .01 .02 .00 .00 .58 .00
18 .00 .00 .00 .00 .00 .00 .00 .58 .01 .00 .00 .00
19 .00 .02 s.04 .00 s.01 .11 .49 .00 .30 .00 .00 .00
20 .00 .00 .03 .00 s.05 .31 2.11 .00 .39 .00 .00 .34
21 .00 .00 .00 .00 s.17 .00 .23 .00 .00 .00 .00 .00
22 .00 .01 .00 .00 .00 .00 .00 .01 .00 .00 .00 .76
23 .00 .63 .00 .00 .00 .00 .12 .00 .14 .00 .00 .09
24 .00 .00 .00 .00 .44 .05 .00 .00 1.45 .00 .00 .14
25 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
26 .00 .02 .00 .00 .05 .11 .00 .07 .00 .00 .00 .00
27 .00 .00 .00 .00 .00 .01 .00 .39 .00 .00 .00 .00
28 .00 .00 .00 s.01 .00 .01 .00 .17 .23 .00 .00 .00
29 .00 .00 .00 .00 .00 .00 .01 .00 .00 .04 .00 .00
30 .00 .00 .00 .00 -- .00 .00 .38 .00 .90 .00 .00
31 .02 -- .00 .00 -- .00 -- .46 -- .32 .00 --

TOTAL 0.93 0.68 2.21 0.50 0.87 1.16 4.43 5.37 5.50 3.96 1.83 4.48
s Snowfall-affected precipitation
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data