This is a firm fixed-price contract for preventive maintenance services for the potable water treatment plant at the U.S. Embassy Guatemala, located at the New Embassy Compound in Guatemala City. The contract has a one-year base period with four one-year options. Services include water treatment chemicals, testing, equipment servicing, and related logistics and management, with work compliant with standards such as NSF, AWWA, OSHA, and others. Offerors must be registered in SAM prior to submitting a proposal to be considered responsive. No budget amount or submission deadline is specified.