WATER RESOURCES OF SOUTH-CENTRAL IOWA

J.W. Cage and A.J. Heinitz

Iowa Department of Natural Resources, Geological Survey Bureau,
Water Atlas No. 5, 1978, 97 p.

TABLE OF CONTENTS

Foreword
Glossary
Acknowledgments and sources of information
Introduction

South-Central Iowa
The land surface
Population

The source of our water

The hydrologic cycle
Climate

Surface-water resources

Streamflow - highly variable
Average discharge
Low-flow frequency
Flow duration
Storage required

Reservoirs and Ponds

Regulated Streams
Floods
Regulations pertaining to flood plain development and water quality

Topographic maps
Groundwater resources

The aquifers

Well data
Surficial aquifers
The bedrock surface
Bedrock aquifers
Depths to the bedrock aquifers
Thickness of the bedrock aquifers
Use of maps to predict depths of drilling

Water in aquifers

Water levels

Water levels in surficial aquifers
Water levels in bedrock aquifers

Yields from wells

Water quality

Quality of surface waters
Quality of ground waters

Water use

Water withdrawals
Water withdrawals in urban areas
Water use by irrigators and the mineral industry
The changing water picture in south-central Iowa
Regulation of water use

Summary
Conclusions
Selected references