Interactive map of water wells and springs in Kentucky

The Kentucky Geological Survey provide an interactive map of water wells and springs in Kentucky. Users can explore the map to find more detailed information for each feature, including the type of spring, well depth, primary well use, and links to well and spring reports. The map also includes outlines of sinkholes in Kentucky.

Click here to access the Kentucky Geological Survey's interactive map.

Source: Kentucky Geological Survey


Interactive map of groundwater levels in Maryland

The Maryland Geological Survey, in cooperation with the U.S. Geological Survey, maintains a state-wide network of groundwater observation wells. The data from these wells is used to create an interactive map of groundwater levels in Maryland. The map provides both historical and recent groundwater reading levels across a range of aquifers in the state of Maryland. 

Click here to use the interactive map.

Source: Maryland Geological Survey

Interactive map of water wells in Illinois

The Illinois State Geological Survey (ISGS) is the official repository for the records of existing wells that have been drilled in the state of Illinois. With records for over 700,000 wells, the interactive water wells map allows users to explore a range of information including the location, depth, and bedrock topography for all recorded wells in Illinois. Data for water and related wells exists for private water wells, engineering borings, and stratigraphic borings.

What affects the quality of surface and groundwater?

Material adapted from: Vandas, S.J., Winter, T.C., and Battaglin, W.A. 2002. Water and the Environment, p. 42-44. Published by the American Geosciences Institute Environmental Awareness Series. Click here to download the full handbook.

Many factors affect the quality of surface and groundwater. Water moving over or under the land surface can undergo physical and chemical changes. These changes may be caused by either natural factors or human activities.


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