About Tokyo Waterworks Bureau

Plans and Policies

Master Plan for Construction of Tokyo Waterworks Facilities (PDF 3,056KB)

Bureau of Waterworks, Tokyo Metropolitan Govenment, Environmental Five-Year Plan 2025-2029 (PDF 4,924KB)

Business Outline

Water Supply in Tokyo: Business Outline (Abridged Version (PDF 1.9MB))

Water Supply in Tokyo: Business Outline (Full Version (PDF 8.6MB))

Facilities of Tokyo Waterworks Bureau

Asaka Water Purification Plant (PDF 6,721KB)

Training and Technical Development Center (PDF 4,217KB)