AWWA ACE59844

Seattle Public Utility's (SPU) new 180 mgd Cedar Treatment Facility will transition from construction to full scale operations in late spring 2004. The facility includes the largest application of ultraviolet (UV) technology in the United States and is also unique given that the Cedar River Supply is unfiltered and the project is being delivered using a Design Build Operate approach. Delivering innovative technology has always been challenging. This paper presents a case study of the process used to overcome the many hurdles associated with implementing UV on the Cedar project. These hurdles include the initial decision to implement UV, equipment selection, validation testing, start-up, and final approvals. Includes reference, figures.