Latitude 41°21'47", Longitude 88°28'47" NAD27
Grundy County, Illinois , Hydrologic Unit 07120005
Well depth: 650 feet Land surface altitude: 550
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer