LOCATION.-- Lat 42°03'00", long 87°46'50" (NAD of 1927), in SE1/4NW1/4 sec. 17, T. 41 N., R. 13 E., Cook County, Hydrologic Unit 07120003, on downstream side of bridge on Beckwith Road at Morton Grove.

DRAINAGE AREA.-- 92.2 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

PARTIAL RECORD: Annual maximum, water years 1960 to 1979.

GAGE.-- Crest-stage gage. Datum is 611.40 ft above NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2130 ft³/sec, June 10, 1967, gage height, 7.32 ft.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data