LOCATION.-- Lat 42°27'30", long 88°36'10" (NAD of 1927), in SE1/4SW1/4 sec.13, T.46 N., R.5 E., McHenry County, Hydrologic Unit 07090006, at culvert on U.S. Highway 14, 1 mi above mouth, 2.5 mi north of Harvard.

DRAINAGE AREA.-- 0.74 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

PARTIAL RECORD: Annual maximum, water years 1961 to 1980.

GAGE.-- Crest-stage gage. Datum not determined.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 180 ft³/sec, April 21, 1972, gage height, 14.07 ft.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data