Latitude 41°11'46", Longitude 90°52'50" NAD27
Mercer County, Illinois , Hydrologic Unit 07080104
Well depth: 440 feet Hole depth: 465 feet
Land surface altitude: 685
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Niagaran Series" (355NIGR) local aquifer