Station list     Available data
ILLINOIS RIVER BASIN


414158088095600                         SPRING BROOK WASTEWATER TREATMENT FACILITY NEAR NAPERVILLE, IL



LOCATION.--Latitude 41°41'58", longitude 88°09'56", in SW1/4NW1/4SW1/4 sec.12, T. 37 N., R.09 E., Will County.

PERIOD OF RECORD.--July 18, 1997 to current year.

GAGE.--An 8-in.-diameter, heated, 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, 4.37 in., August 4, 1998.

MAXIMUM FOR WATER YEAR 1997.--Maximum recorded, 1.36 in., August 16, 1997.

MAXIMUM FOR WATER YEAR 1998.--Maximum, 4.37 in., August 4, 1998.
RAINFALL, IN INCHES, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY TOTAL VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 -- -- -- -- -- -- -- -- -- -- 0.00 0.00
2 -- -- -- -- -- -- -- -- -- -- .00 .00
3 -- -- -- -- -- -- -- -- -- -- .31 .00
4 -- -- -- -- -- -- -- -- -- -- .14 .00
5 -- -- -- -- -- -- -- -- -- -- .00 .00
6 -- -- -- -- -- -- -- -- -- -- .00 .00
7 -- -- -- -- -- -- -- -- -- -- .00 .00
8 -- -- -- -- -- -- -- -- -- -- .00 .04
9 -- -- -- -- -- -- -- -- -- -- .00 .00
10 -- -- -- -- -- -- -- -- -- -- .00 .00
11 -- -- -- -- -- -- -- -- -- -- .86 .00
12 -- -- -- -- -- -- -- -- -- -- .94 .00
13 -- -- -- -- -- -- -- -- -- -- .00 .00
14 -- -- -- -- -- -- -- -- -- -- .00 .00
15 -- -- -- -- -- -- -- -- -- -- .21 .00
16 -- -- -- -- -- -- -- -- -- -- 1.36 .92
17 -- -- -- -- -- -- -- -- -- -- .82 .16
18 -- -- -- -- -- -- -- -- -- .26 .00 .00
19 -- -- -- -- -- -- -- -- -- .00 .00 .10
20 -- -- -- -- -- -- -- -- -- .00 .00 .00
21 -- -- -- -- -- -- -- -- -- .02 .00 .00
22 -- -- -- -- -- -- -- -- -- .05 .00 .07
23 -- -- -- -- -- -- -- -- -- .00 .09 .12
24 -- -- -- -- -- -- -- -- -- .00 .00 .00
25 -- -- -- -- -- -- -- -- -- .00 .00 .00
26 -- -- -- -- -- -- -- -- -- .00 .00 .00
27 -- -- -- -- -- -- -- -- -- .01 .00 .00
28 -- -- -- -- -- -- -- -- -- .00 .00 .00
29 -- -- -- -- -- -- -- -- -- .00 .00 .00
30 -- -- -- -- -- -- -- -- -- .00 .02 .00
31 -- -- -- -- -- -- -- -- -- .00 .00 --

TOTAL -- -- -- -- -- -- -- -- -- -- 4.75 2.41
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 0.03 0.00 0.00 0.04 s0.02 0.09 0.00 0.00 0.00 0.00 0.00
2 .00 .00 .00 .00 .00 s.02 .00 .00 .00 .00 .00 .00
3 .00 .07 .09 .38 .00 s.11 .00 .00 .32 1.15 .76 .24
4 .06 .00 .00 .26 .00 s.03 .00 .01 .00 .00 4.37 .00
5 .00 .09 .00 .46 .00 .00 .00 .26 .07 .00 .75 .00
6 .00 .11 .00 .25 .00 .00 .00 .66 .00 .00 .53 e.33
7 .00 .00 .00 .06 .00 .01 .65 1.23 .00 .89 .16 e1.31
8 .00 .00 s.01 s.99 .00 .65 .25 .13 .06 .00 .00 .00
9 .01 .00 s.06 .00 .00 s1.14 .01 .00 .65 .00 .00 .00
10 .00 .00 s.36 .00 .07 .00 .00 .00 .00 .00 .00 .00
11 .00 .00 .00 .00 .69 .00 .00 .00 .99 .00 .00 .00
12 .00 .00 .00 .00 .00 .00 .00 .21 .00 .00 .00 .00
13 .46 .00 .00 .00 .00 .00 .19 .04 .00 .00 .00 .00
14 .00 s.02 .00 s.16 .00 .00 .00 .00 .03 .00 .00 .67
15 .00 s.26 .00 s.08 .00 .00 .36 .00 .00 .00 .03 .05
16 .00 .00 .00 .00 e.22 .00 .02 .00 .05 .00 .00 .00
17 .00 .00 .00 .00 .11 .69 .00 .00 .00 .00 .00 .00
18 .00 .00 .00 .00 .01 .26 .00 .00 .34 .00 .00 .00
19 .00 .00 .00 .00 .00 .00 .00 .00 .00 .45 .00 .00
20 .00 .00 .00 .00 .01 .00 .68 .00 .00 .00 .00 .05
21 .00 .00 .00 s.08 .00 .00 .03 .00 .00 .15 .00 .00
22 .00 .00 .07 s.08 .00 .00 .00 .00 .00 .17 .03 .00
23 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
24 .17 .00 s.68 .00 .18 .00 .00 .21 .00 .00 .56 .05
25 .01 .00 s.02 .00 .00 .00 .10 .00 .00 .00 .00 .02
26 1.04 .00 .00 .00 .00 .00 .35 .00 2.19 .00 .00 .00
27 s.01 e.46 .00 .00 .15 .00 .00 .00 .00 .00 .00 .00
28 .00 e.01 .00 .00 .00 .21 .04 .07 .12 .00 .59 .00
29 .00 e.13 s.13 s.03 -- .00 .27 .04 .11 .00 .00 .17
30 .00 .00 .00 .00 -- .00 .00 .00 .01 .00 .00 .71
31 .00 -- .00 .00 -- .69 -- .00 -- .00 .00 --

TOTAL 1.76 1.18 1.42 2.83 1.48 3.83 3.04 2.86 4.94 2.81 7.78 3.60
s Snowfall-affected precipitation
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data