This is a Sources Sought notice for Operation and Maintenance support services for the Yuma Desalting Plant and Water Quality Improvement Center in Yuma, Arizona, for a potential five-year period. The work is a single-award IDIQ contract for routine O&M, with service levels that may vary from maintenance-only to full plant operations, including potential short-term demonstration runs. The performance of all services will take place in Yuma, Yuma County, Arizona. The government is seeking capability statements from firms with relevant experience to help determine the appropriate procurement strategy, such as a potential set-aside. No contract will be awarded from this notice.