Latitude 41°37'10", Longitude 88°39'00" NAD27
Lasalle County, Illinois , Hydrologic Unit 07120007
Well depth: 500 feet Land surface altitude: 665
feet above NGVD29.
Well completed in "Cambrian-Ordovician aquifer system" (S300CAMORD) national aquifer.
Well completed in "Ordovician System" (360ODVC) local aquifer