Station list     Available data
ILLINOIS RIVER BASIN


05536118       NORTH BRANCH CHICAGO RIVER AT GRAND AVENUE AT CHICAGO, IL

 

LOCATION.-- Lat 41°53'30", long 87°38'30" (NAD of 1927), in NW1/4SW1/4 sec.12, T.40 N., R.13 E., Cook County, Hydrologic Unit 07120003, on right upstream side of Grand Avenue bridge in Chicago, 0.6 mi upstream from the confluence with the main stem of the Chicago River and at mile 36.0.

 

DRAINAGE AREA.-- 180 mi2.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: July 2, 2002 to current year.

SURFACE-WATER QUALITY

 

PHYSICAL AND CHEMICAL: Water years 2002 to current year.

 

WATER TEMPERATURE: September 2002 to current year.

 

GAGE.-- Water-stage recorder, acoustic velocity meter and water-temperature sensor. Datum of gage is 579.48 ft above NGVD of 1929 (Chicago City datum).

 

REMARKS.-- This station provides data for a water-quality model.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum daily discharge, 4,430 ft3/s, Aug. 22, 2002, minimum daily discharge, -20 ft3/s, Jan. 31, 2004, due to regulation.

WATER TEMPERATURE: Maximum recorded, 25.6°C, Aug. 27, 2003; minimum recorded, 0.5°C, Jan. 31, 2004.


SURFACE-WATER QUALITY
 
Sample Temper- Specific Sample Temper- Specific Sample Temper- Specific
location, ature conduct- location ature conduct- location ature conduct-
Date Time Depth (ft from water, ance, (ft from water ance, (ft from water ance,
(in ft) L bank) deg C uS/cm L bank) deg C uS/cm L bank) deg C uS/cm
(00010) (00095) (00010) (00095) (00010) (00095)
SEP 2002
11... 1410 0 40 24.1 619 80 24.0 621 120 24.0 621
2 40 24.1 619 80 24.0 621 120 24.0 621
4 40 24.1 619 80 24.0 620 120 24.0 621
6 40 24.1 619 80 24.0 621 120 24.0 621
8 40 24.0 619 80 24.0 621 120 24.0 622
10 40 24.0 620 80 24.0 621 120 24.0 621
12 40 24.0 620 80 24.0 621 120 24.0 622
14 --    -- 80 24.0 621 120 24.0 622
16 --    -- 80 24.0 620 120 24.0 621
18 --    -- --    -- 120 24.0 621
20 --    -- --    -- -- 23.9 621



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data