DI Viewer is a "Display Log" utility program to allow rapid viewing, comparison, printing, and export of Geoprobe DI logs. Supported log types include EC, HPT, MIP, MiHpt, and HPT-GW. Automatically opens and displays all types of Geoprobe DI Logs. It can be used by field operators to QC finish logs in the field and consultants, regulators, and site owners to compare logs and develop site models. Can display multiple logs in either cross section or overlay formats. It includes post logging calculation algorithms including estimated hydraulic conductivity (K) and hydrostatic profile of HPT logs. It allows printing and exporting of log graphics to other applications.