Station list     Available data
ILLINOIS RIVER BASIN


05533000       FLAG CREEK NEAR WILLOW SPRINGS, IL

 

LOCATION.-- Lat 41°44'20", long 87°53'47" (NAD of 1927), in SE1/4NE1/4 sec.31, T.38 N., R.12 E., Cook County, Hydrologic Unit 07120004, on left bank at upstream side of bridge on German Church Road, 1.1 mi northwest of Willow Springs, and at mile 2.2.

 

DRAINAGE AREA.-- 16.5 mi2.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: July 1951 to current year.

 

STAGE: Water years 1994 to current year.

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.

 

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

 

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 606.36 ft above NGVD of 1929. Prior to June 17, 1963, water-stage recorder at same site at datum 3.73 ft higher. June 17, 1963, to June 26, 1964, nonrecording gage at site 0.5 mi upstream at datum 4.82 ft higher.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,680 ft3/s, Sept. 14, 1961, gage height, 13.71 ft, present datum; minimum daily, 0.1 ft3/s, Dec. 9, 1957.

 

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 barge electroshocker with supplementary seine hauls and kicks. Fishes were identified by C. A. Taylor, Illinois Natural History Survey, Champaign. Reach A begins 36 feet upstream of German Church Road and continues upstream for 591 feet.



FISH
Order
Family Number
Scientific name Common name
individuals

  Reach A
7/17/2001
 

Atheriniformes
Cyprinodontidae
Fundulus notatus blackstripe topminnow 1
Cypriniformes
Catostomidae
Catostomus commersoni white sucker 15
Cyprinidae
Campostoma anomalum central stoneroller 4
Notropis hudsonius spottail shiner 1
Notropis stramineus sand shiner 2
Pimephales notatus bluntnose minnow 1
Pimephales promelas fathead minnow 11
Semotilus atromaculatus creek chub 17
Perciformes
Centrarchidae
Lepomis cyanellus green sunfish 12
Lepomis macrochirus bluegill 14
Lepomis macrochirus x Lepomis cyanellus bluegill x green sunfish 1
Percidae
Etheostoma nigrum johnny darter 1
Siluriformes
Ictaluridae
Ameiurus natalis yellow bullhead 1


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data