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Geohydrology of Decatur County

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Contents

Abstract

Introduction

Scope of investigation

Previous investigations

Well-numbering system

Topography and drainage

Climate

Geologic Setting

Summary of stratigraphy

Subsurface rocks

Outcropping rocks

Geologic formations

Cretaceous System-Upper Cretaceous Series

Niobrara Chalk

Pierre Shale

Tertiary System-Pliocene Series

Ogallala Formation

Quaternary System-Pleistocene Series

Crete Formation

Loveland and Peoria Formations

Alluvium

Ground Water

Source and occurrence

Water table and movement of ground water

Recharge

Local precipitation

Streams and ponds

Infiltration of irrigation water

Discharge

Natural

Wells

Inflow and outflow

Water in storage

Hydrologic properties of water-bearing materials

Coefficients of storage and transmissibility

Drawdown, distance, and time relationships

Availability

Alluvial valleys

Ogallala Formation

Utilization

Domestic and stock supplies

Municipal supplies

Oberlin

Norcatur

Jennings

Irrigation supplies

Chemical quality

Chemical constituents in relation to use

Sanitary considerations

Suitability of water for irrigation

Records of Wells and Test Holes

Logs of Wells and Test Holes

References

Plates


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Kansas Geological Survey, Geology
Placed on web Oct. 8, 2008; originally published Dec. 1969.
Comments to webadmin@kgs.ku.edu
The URL for this page is http://www.kgs.ku.edu/General/Geology/Decatur/01_contents.html