The U.S. Embassy in Addis Ababa, Ethiopia requires preventive maintenance services for its wastewater treatment and collection systems. The contractor will perform site assessments, project management, professional treatment operations, logistics, and scheduled maintenance. No specific budget amount or performance timeline is mentioned in the description. The location for performance is the main compound of the U.S. Embassy in Addis Ababa, Ethiopia. This opportunity is for a contractor to deliver expert-level wastewater services and ensure system compliance.