The City of Yokohama is making proactive efforts to conserve the total water environment from the headwaters to the sea. It serves to conserve headwaters and stably offer safe and high-quality tap water.
Yokohama Water Business
Yokohama Water Co., Ltd. (the outside site)
Providing 24-hour Water Lifeline (PDF: 1,730KB)
Growth of the City Depends on Water (PDF: 1,460KB)
Wastewater Treatment (Sewerage System)
Under the advanced treatment systems, Environmental Planning Bereau promotes water recycling and reuse for sustainable environment, and defines the approaches toward flood prevention for safe and comfortable life.
For the Future Environment of Yokohama (PDF: 15,655KB)
Wastewater International Cooperation (the outside site)