An evaluation was conducted to assess the appropriate type of well drilling equipment to be purchased for the reactivated Bolivia Rural Water Supply and Sanitation Project. This report presents the consultant's findings. Groundwater resources in the Departments of Cochabamba and Chuquisaca are described, with drilling conditions and requirements. Existing and potential drilling problems are briefly discussed, including the lack of equipment and spare parts. It is recommended that Rotamec 50 or Mobile B-80 drilling equipment would be most appropriate for the field conditions and could be readily serviced in Bolivia. Pumping tests should be conducted to determine the proper pumps and electric generator sets to buy; well service rigs, electrosubmersible pumps, drop pipe, well screen, well casing, and miscellaneous tools should also be purchased. Appendices provide equipment specifications and information.