Groundwater Science - Water Supply Planning: Mass Measurement of Northern Illinois Aquifers, Illinois State Water Survey

Groundwater Science

Mass Measurement

In 2014-15, the Illinois State Water Survey conducted their largest synoptic measurement of water levels in Cambrian-Ordovician sandstone wells since 1980. The study covered 33 counties in the northern half of Illinois where demands for water are satisfied, in part, by sandstone aquifers. The Wisconsin Geological and Natural History Survey also measured sandstone wells in 10 counties in southern Wisconsin. Observations of water levels (or heads) were most often obtained using the airline methodology. These observations were used to generate head contours of the sandstone aquifers. These contours provide insight into the direction and magnitude of groundwater flow. They also can be compared with historic measurements, providing insight into the impact of changing groundwater withdrawals through time, particularly in northeastern Illinois where synoptic measurements have occurred at regular intervals since 1959.

Report:
Cover image of Report: Changing Groundwater Levels in the Sandstone Aquifers of Northern Illinois and Southern Wisconsin: 
				Impacts on Available Water Supply Changing Groundwater Levels in the Sandstone Aquifers of Northern Illinois and Southern Wisconsin: Impacts on Available Water Supply (pdf ~16mb)
Daniel B. Abrams, Daniel R. Hadley, Devin H. Mannix, George S. Roadcap, Scott C. Meyer, Kenneth J. Hlinka, Kevin Rennels, Kenneth R. Bradbury, Peter M. Chase, Jacob J. Krause, 2015 Illinois State Water Survey, Champaign, IL
Supplemental material for this report can be downloaded below:
Fact Sheets
  1. Changing Groundwater Levels in the Cambrian-Ordovician Sandstone Aquifers of Northern Illinois, 1980-2014 (pdf ~1.6k)
  2. Groundwater Availability in Northeastern Illinois from Deep Sandstone Aquifers (pdf ~2.4k)
  3. Sources of Water for Communities in Northeastern Illinois (pdf ~1.4k)
Videos Data



Mass Measurement Cross-Section

 



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