Station list     Available data
ILLINOIS RIVER BASIN


414411087575000       MARIENBROOK WASTEWATER TREATMENT FACILITY AT DARIEN, IL



LOCATION.-- Latitude 41°44'11", longitude 87°57'50", in NE1/4NE1/4SW1/4 sec. 34, T.38 N., R.11 E., Du Page County, Hydrologic Unit 07120004, on Nantucket Road 0.6 mi east of Frontage Road, and located at the Marienbrook Wastewater treatment Facility at Darien.

PERIOD OF RECORD.--
PRECIPITATION: October 1990 to October 1991 and 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.

EXTREMES FOR PERIOD OF RECORD.--
PRECIPITATION: Maximum, 3.16 in., November 27, 1990, but may have been greater during periods of missing record.

EXTREMES FOR CURRENT YEAR.--Maximum recorded, 1.75 in., July 10, 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 0.02 0.00 0.00 0.00 0.02 0.00 0.27 0.04 0.00 0.07 0.00
2 .06 .00 .00 .00 .00 .00 .00 .00 .00 .78 .08 .00
3 .59 .00 .27 .12 .00 .00 .05 .00 .00 .72 .00 .00
4 .00 .00 .80 .00 s.01 .00 .00 .00 .06 .00 .00 .00
5 .00 .00 .68 s.01 .00 .00 .00 .00 .26 .00 .38 .00
6 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .61 .00
7 .00 .00 .01 .00 .00 .00 .28 .00 .00 .00 .00 .00
8 .01 .00 .00 .06 .00 .02 .09 1.26 .00 .00 .00 .00
9 .00 .00 .05 .14 .00 .00 .00 .87 .00 .00 .00 .00
10 .00 .00 .00 .12 .00 .00 .13 .00 .07 1.75 .00 .98
11 .00 .00 .00 .00 .00 .00 .00 .21 1.20 .00 .00 1.70
12 .00 .00 .00 .00 .00 .00 .00 .15 .43 .00 .00 .25
13 .03 .00 .00 .00 .00 .04 .00 .00 .41 .02 .00 .00
14 .00 .00 .04 .00 .00 .00 .00 .00 .21 .00 .00 .34
15 .00 .00 .14 .00 .00 .10 .00 .00 .00 .00 .00 .00
16 .12 .00 .00 .00 .00 .01 .72 .14 .02 .00 .00 .00
17 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 1.20 .00
18 .00 .00 s.06 s.01 .00 .00 .00 .53 .00 .01 .00 .00
19 .00 .00 .00 .00 s.09 .23 .50 .02 .00 .00 .00 .00
20 .00 .00 .03 .00 .00 .17 1.59 .00 .39 .00 .00 .38
21 .00 .00 .00 .00 .00 .01 .37 .00 .00 .00 .00 .00
22 .00 .13 .00 .00 .00 .01 .00 .15 .00 .00 .00 .33
23 .00 .60 .00 .00 .00 .00 .15 .00 .14 .00 .48 .17
24 .00 .00 .00 .00 .37 .13 .00 .00 1.00 .00 .00 .26
25 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
26 .00 .02 .00 .00 .04 .17 .00 .04 .00 .00 .00 .00
27 .00 .00 .00 .00 .00 .05 .00 1.68 .00 .00 .00 .00
28 .00 .00 .00 .00 .00 .01 .00 .10 .10 .00 .00 .00
29 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .00
30 .00 .00 .00 s.01 -- .00 .00 .02 .00 1.22 .00 .00
31 .00 -- .00 .00 -- .00 -- .94 -- .36 .00 --

TOTAL 0.81 0.77 2.08 0.47 0.51 0.97 3.88 6.40 4.34 4.86 2.82 4.41
s Snowfall-affected precipitation


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data