This article discusses a project which was jointly funded by the American Water Works Association Research Foundation (AWWARF) and the Electric Power Research Institute/Community Environmental Center. The goal of this project was to assess whether a particular electrotechnology device was capable of inactivating Cryptosporidium parvum oocysts. Five electrotechnologies were evaluated, and advanced ultraviolet (UV) light technology was found to provide greater than 4-log inactivation of Cryptosporidium. This UV technolgy was evaluated further from an engineering design and economic standpoint to determine the feasibility of implementing it at existing treatment facilities. This article describes the results of the engineering and economic analyses for advanced UV electrotechnology. Includes 8 references, tables, figures.