Latitude 41°19'13", Longitude 90°30'22" NAD27
Mercer County, Illinois , Hydrologic Unit 07090005
Well depth: 521 feet Land surface altitude: 800
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Hunton Megagroup" (344HNTN) local aquifer