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Major Bedrock Aquifers Within 300 Feet of Ground Surface

Abstract: This map shows the distribution of major bedrock aquifer units within 300 feet
of ground surface containing potable water in Illinois. Major aquifers are
capable of yielding 70 gallons of water per minute. Potable water contains less
than 2,500 milligrams per liter of total dissolved solids. Bedrock aquifers
within 300 feet of ground surface cover most of northern Illinois ... View entire text
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Description: Data available in Arc/Info export format.

Description: FGDC metadata on the Major Bedrock Aquifers Within 300 Feet of Ground Surface.
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Caption:  Major Bedrock Aquifers Within 300 Feet of Ground Surface
Geographic Coverage
Spatial coordinates   
  N: 42.5   S: 36.95   E: -87.38   W: -91.58

Data Set Citation
Dataset Originator/Creator: Miller, Jerry
Dataset Title: Major Bedrock Aquifers Within 300 Feet of Ground Surface
Dataset Series Name: ISGS GIS Database
Dataset Release Date: 1994
Dataset Release Place: Champaign, Illinois
Dataset Publisher: Illinois State Geological Survey
Version: 2.0
Issue Identification: aqmb300
Data Presentation Form: map
Other Citation Details: Component of a published map Scale is 1:500,000
Temporal Coverage
Start Date: 1986-01-01
Access Constraints None
Use Constraints Reproduction or redistribution of copyrighted digital data sets or products
derived therefrom outside of licensee's organization or entity is expressly
forbidden. The only exception is redistribution to consultants working for the
licensee, and then only for purposes, related to work for the licensee. Such
consultants may not ... View entire text
Data Set Progress
Originating Center
Data Center
Geological Survey, Dept. of Natural Resources, Illinois Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 217-333-5102
Fax: 217-333-2830
Email: denhart at
Contact Address:
615 East Peabody Drive
City: Champaign
Province or State: Illinois
Postal Code: 61820
Country: USA
Distribution Media: Online
Distribution Size: 1.7MB
Distribution Format: Arc/Info export format
Fees: No fees
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2004-03-04
Last DIF Revision Date: 2017-08-23