Station list     Available data
ILLINOIS RIVER BASIN


415518087583000       ADDISON WASTEWATER TREATMENT FACILITY AT ADDISON, IL



LOCATION.-- Latitude 41°55'18", longitude 87°58'30", in SE1/4SW1/4SW1/4 sec. 27, T.40 N., R.11 E., Du Page County, Hydrologic Unit 07120004, on Villa Avenue 0.5 mi south of State Highway 20, and located on the southern most building of the Addison Wastewater Treatment Facility at Addison.

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, 2.91 in., October 17, 1998.

EXTREMES FOR CURRENT YEAR.--Maximum recorded, 2.18 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 s0.02 0.04 0.00 0.13 0.45 0.00 0.00 0.00
2 .03 .00 .00 .02 .00 .00 .02 .00 .00 .82 .07 .00
3 .65 .00 .17 .21 s.02 .00 .00 .00 .00 .22 .00 .00
4 .00 .00 e1.00 s.01 .00 .00 .00 .00 .04 .00 .00 .00
5 .00 .00 e.75 .00 .00 .00 .00 .00 .29 .00 .31 .00
6 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .60 .00
7 .00 .00 .00 .00 .00 .00 .44 .00 .00 .00 .00 .00
8 .00 .00 .00 .01 .00 .01 .10 .77 .00 .00 .00 .01
9 .00 .00 .05 .12 .00 .00 .00 e.69 .00 .00 .00 .00
10 .00 .00 .00 .12 .00 .00 .07 .00 .00 .87 .00 .00
11 .00 .00 .00 .00 .00 .00 .00 e.30 .76 .00 .00 2.18
12 .00 .00 .00 .00 .00 .00 .00 e.91 .36 .00 .00 .06
13 .00 .00 .00 .00 .00 .01 .00 .01 .22 .02 .00 .00
14 .00 .00 e.05 .00 s.03 .00 .00 .00 .60 .00 .00 .42
15 .00 .00 .14 .00 .00 .46 .00 .00 .00 .00 .00 .00
16 e.14 .00 .01 .00 .00 .00 .84 .26 .10 .00 .00 .00
17 .00 .00 .00 .00 .00 .00 .00 .03 .00 .00 .70 .00
18 .00 .00 s.07 .00 .00 .00 .01 .52 .01 .00 .00 .00
19 .00 .00 .00 .00 .00 .12 .72 .01 .00 .00 .00 .00
20 .00 .00 .04 .00 s.01 .26 1.64 .00 .42 .00 .00 .41
21 .00 .00 .00 .00 s.01 .01 .22 .00 .02 .00 .00 .00
22 .00 .00 .00 .00 .00 .00 .00 .03 .00 .00 .00 .64
23 .00 e.53 .00 .00 .00 .00 .12 .00 .14 .00 .00 .07
24 .00 .00 .00 .00 .49 .08 .00 .00 1.18 .00 .00 .00
25 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
26 .00 .04 .00 .00 .00 .17 .00 .08 .00 .00 .00 .00
27 .00 .00 .00 .00 .00 .03 .00 .42 .00 .00 .00 .00
28 .00 .00 .00 s.06 .00 .01 .01 .17 .00 .00 .00 .00
29 .00 .00 .00 .00 .00 .00 .02 .00 .00 .00 .00 .00
30 .00 .00 .00 s.02 -- .00 .00 .23 .00 .75 .00 .00
31 e.02 -- .00 .00 -- .00 -- .44 -- .33 .00 --

TOTAL 0.84 0.57 2.29 0.57 0.58 1.20 4.21 5.00 4.59 3.01 1.68 3.79
s Snowfall-affected precipitation
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data