DRAFT SOW LXEZ201076 Repair Water Mains_Phase II_edited2_Redacted.pdf

This is a Statement of Work (SOW) dated 02 April 2025 for the Repair Water Lines, Phase II project at Kadena Air Base, Okinawa, Japan. The design-build project focuses on replacing existing water distribution mains, including 16-inch and 12-inch water mains along a new roadway route to eliminate mains running through flightlines. Key scope elements include installing new fire hydrants, creating water main connections to existing distribution systems, implementing pressure reducing valve systems, and installing SCADA for continuous water quality monitoring. The project requires trenching and abandoning existing mains, with specific attention to runway-adjacent lines that will be filled with flowable structural concrete.

The project has a total performance period of 841 calendar days, broken down as 271 days for design, 540 days for construction, and 30 days for administration. The estimated contract value ranges between $25-100 million, with a firm-fixed price structure. Environmental considerations include conducting a Cultural Assessment Survey, UXO survey, and adhering to sustainable design principles. The contractor must comply with Unified Facilities Criteria (UFC) and National Fire Protection Association (NFPA) requirements, and will be responsible for geotechnical investigations, utility mapping, and restoring all affected ground surfaces to their original condition.