Latitude 42°09'44", Longitude 87°59'12" NAD27
Lake County, Illinois , Hydrologic Unit 07120004
Well depth: 300 feet Land surface altitude: 710
feet above NAVD88.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer