Groundwater Development Support Services

Groundwater Information Requests

ISGS Geohydrologists can provide limited, no-cost assistance to consultants, drillers, and others regarding the likely distribution, depth and productivity of aquifers at specific Illinois locations.  Staff also provide assistance in the use of the ISGS ILWATER web service, used to obtain information on the groundwater resources of an area or site.  For assistance with Groundwater Information Requests, contact Bill Dey (please make his name a link to his web page).

Borehole Geophysics for Aquifer Delineation

ISGS Geophysicists can provide borehole geophysical logging to Illinois municipalities and industry using a range of geophysical tools and methods.  The resulting logs can be used to characterize the geologic materials surrounding the borehole and the fluid within these materials, and can be used to help evaluate the location and potential productivity of aquifers.  Downhole logging also can be used to help create reliable cross sections and assist with placement of well screens.  These services are provided at set cost recovery rates.  For information and cost estimates, contact Tim Young (name is a link to his web page).  Due to limited resources, these services are not available to homeowners.

Geophysical Surveys

ISGS Geophysicists can provide various geophysical surveys to assist communities, water districts or industries in locating and characterizing the potential productivity of aquifers in Illinois.  These methods also can be used to help map the depth to bedrock, identify unsaturated zones within geologic deposits, and even detect some contaminant plumes.  These services are provided at set cost recovery rates.  For information and cost estimates, contact Tim Young (name is a link to his web page).  Due to limited resources, these services are not available to homeowners.