Latitude 41°17'25", Longitude 88°36'12" NAD27
Lasalle County, Illinois , Hydrologic Unit 07120005
Well depth: 160 feet Land surface altitude: 605
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer