LOCATION.-- Lat 41°40'27", long 87°50'35" (NAD of 1927), in SW1/4SE1/4 sec. 22, T. 37 N., R. 12 E., Cook County, Hydrologic Unit 07120003, at bridge on 119th Street at Palos Park.

DRAINAGE AREA.-- 10.8 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

PARTIAL RECORD: Annual maximum, water years 1961 to 1979.

GAGE.-- Crest-stage gage. Datum is 623.56 ft above NGVD of 1929.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 762 ft³/sec, March 4, 1979, gage height, 2.40 ft.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data