Selected figures from Hackley et al. (2010) (1 MB, Jul 10)
This figure shows the bedrock geology beneath the Mahomet aquifer, location of monitoring wells and the effect of recharge and bedrock groundwater discharge on the water quality in the Mahomet aquifer.
Download the complete paper by Hackley, Panno & Anderson (2010) (2 MB)
Map of the counties covered by the Regional Water Supply Planning Committee of east-central Illinois (Dec 07)
This map of central Illinois shows the boundaries of the Mahomet aquifer, the Sangamon River watershed and the 15 county area of the Regional Water Supply Planning Committee of east-central Illinois.
Map showing the community water supplies pumping from the Mahomet aquifer (Oct 06)
This map of central Illinois shows the aquifer (shaded violet), county boundaries, city/village water supplies.
Map showing aquifer boundaries overlying political boundaries (Mar 06)
This map of central Illinois shows the aquifer boundaries (black lines), county boundaries, city/village boundaries and major rivers.
Map of the Mahomet aquifer overlying districts of U.S. Congress (Oct 09)
This map shows the aquifer overlying county boundaries and the districts of US Congress. [P. Graff, ISWS]
Map of the Mahomet aquifer overlying districts of Illinois Legislature (Mar 06)
This map shows the aquifer overlying county boundaries and districts of the Illinois Legislature.
Map of the Mahomet aquifer overlying districts of Illinois Senate (Mar 06)
This map shows the aquifer overlying county boundaries and districts of the Illinois Senate.