“Yokohama Modern Sewerage Introduction 150 Years / Sewage Treatment Start 60 Years” We want you to know more about “Yokohama Sewerage” initiatives and appeal!

　The introduction of modern sewerage in Yokohama was promoted by a British engineer Blanton at a foreign settlement in Yokohama, started in 1869, and completed in 1871. Now that 150 years have passed since the introduction of the modern sewerage system, the sewerage penetration rate in Yokohama has reached almost 100%, and the sewage treatment that has continued for 60 years has not only improved the sanitary environment, but also the river and sea environment that has deteriorated due to high economic growth.

　However, in recent years, the social situation surrounding the sewerage business has changed drastically, such as preparing for frequent heavy rains and making efforts to realize a decarbonized society, and its importance and role as infrastructure supporting cities are becoming even stronger.

　Therefore, in the milestone year of the 150th anniversary of the introduction of the modern sewerage system in Yokohama and the 60th anniversary of the start of sewage treatment, the importance of sewerage systems that continue to support the lives of cities and people, efforts to create safe and secure towns such as inundation countermeasures and aging countermeasures, and the challenge of a decarbonized society will be communicated by seizing various events and opportunities.