LOCATION.-- Lat 40°58'08", long 87°53'04" (NAD of 1927), in NW1/4 SW1/4 NW1/4 sec.30, T.29 N., R.13 W., Iroquois County, Hydrologic Unit 07120002. Located at CR1300E, 0.9 miles west of Route 45.

DRAINAGE AREA.-- 94.2 mi²

PERIOD OF RECORD.--

SURFACE-WATER QUALITY

MISCELLANEOUS: Water year 1990.

BIOLOGICAL

ALGAE: Water years 1990.

REMARKS.-- Station established as a low-flow water-quality sampling site in 1990 as part of the upper Illinois River basin pilot project for the National Water-Quality Assessment Program.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data