Datasets

Major Bedrock Aquifers Within 500 Feet of Ground Surface [Illinois]

Illinois Geospatial Data Clearinghouse Full Details

Full Details

Title
Major Bedrock Aquifers Within 500 Feet of Ground Surface [Illinois]
Description
This map shows the distribution of major bedrock aquifer units within 500 feet of ground surface 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 500 feet of ground surface cover most of northern Illinois and are commonly overlain only by thin layers of less permeable silts and clays.  Many are directly overlain by shallow or major sand and gravel aquifers allowing direct hydrologic communication with shallower aquifer systems.   This feature class is intended to identify areas of Illinois where major bedrock aquifers exist.   The scale of these data is 1:500,000.
Access Rights
Public
Format
File
Language
English
Date Added
October 21, 2023

Location

Leaflet © OpenStreetMap contributors

click or hover to wake

Download

Links

Cite and Reference

  • Citation
    [Creator not found] (n.d.). Major Bedrock Aquifers Within 500 Feet of Ground Surface [Illinois]. . https://clearinghouse.isgs.illinois.edu/data/hydrology/major-bedrock-aquifers-within-500-feet-ground-surface (dataset)
  • BTAA Geoportal Link

View more items like this one...

Major Bedrock Aquifers Within 300 Feet of Ground Surface [Illinois]

Major Bedrock Aquifers at Depths Greater Than 500 Feet Below Ground Surface [Illinois]

Major Sand and Gravel Aquifers [Illinois]

Coarse-grained Materials Within 50 Feet of the Ground Surface [Illinois]

Major Aquifers [Illinois]

Northeast Shallow Bedrock Potentiometric Surface [Illinois]

Potential of Agricultural Chemical Contamination of Aquifers [Illinois]

Bedrock Topography [Illinois]

Sinkhole Areas [Illinois]

Flood Zones for Unincorporated Areas, One-Hundred and Five-Hundred Year [Illinois]