LOCATION.-- Lat 41°33'25", long 87°35'46" (NAD of 1927), in NW╝ SW╝ SW╝ sec.35, T.36N., R.14E., Cook County, Hydrologic Unit 07120003, 36 feet downstream of Bridge on Cottage Grove Road.

DRAINAGE AREA.-- 22.38 mi▓.

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

PARTIAL RECORD: Miscellaneous discharge measurements, water year 2000.

SURFACE-WATER QUALITY

MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000.

BIOLOGICAL

BENTHIC MACROINVERTEBRATES: Water year 2000.

FISH: Water year 2001.

HABITAT: Water year 2000.

REMARKS FOR CURRENT YEAR.--Fish community samples were collected as part of the National Water-Quality Assessment program (NAWQA) in the upper Illinois River Basin. Collections were made with a single pass of the entire reach with a backpack electroshocker with supplementary seine hauls and kicks. Fishes were identified by C. A. Taylor, Illinois Natural History Survey, Champaign. Reach A begins 36 feet downstream of Cottage Grove Bridge and continues downstream for 656 feet.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data