Period: Monday, June 1, 2026 – Tuesday, June 30, 2026

The Sewerage Bureau has designated June—before the rainy season begins—as “Flood Prevention Awareness Month.” During this month, we conduct inspections to ensure that sewer facilities are functioning properly and carry out public awareness campaigns to encourage residents to prepare for flooding.In addition, to help you better understand the role of the sewer system in creating a safe community, we are organizing tours of sewer facilities that are not normally open to the public. We hope you will join us.

Website on Preparing for Flooding

Key Initiatives for “Flood Prevention Awareness Month”

1. Inspection of Sewer Facilities

Conducted inspections of key facilities such as sewer pipes, manholes, and water reclamation centers

2. Request to Customers to Prepare for Flooding

• (1) Appeals such as “Please do not block storm drains” and “Please prepare sandbags, water bags, and water barriers for semi-basement and basement homes”
• (2) Staff members are making door-to-door visits to semi-basement homes to encourage residents to take their own precautions against flooding, such as installing drainage pumps.
• (3) Promote “Tokyo Amesh” so that a wide range of customers can benefit from it

Official Website (Link to external site)

3. Ways to Promote to Customers

• (1) In addition to posts on the station’s official X account, advertising will be displayed on social media, websites, YouTube videos, and FamilyMart checkout screens, among other platforms.
• (2) Video broadcasts on “Chikatto Vision” across all Toei Subway lines and on digital signage in wards, cities, and municipalities

• (3) Distribution of leaflets at events organized by municipalities
• (4) Publication in newsletters issued by the Tokyo Metropolitan Government and municipal governments
• (5) Holding a special exhibition at the Tokyo Rainbow Sewerage Museum
• (6) Operation of Toei buses featuring body advertisements (5 buses)

Bus service updates are posted on the “Tokyo Bus Service Information Service” ^[Note].
[Note] Please visit the Bureau of Transportation website (link to external site), select
“Vehicle Search” → “Wrapped Bus Search.”
Please refrain from contacting the depot or drivers directly.

• (7) Driving around with promotional magnets attached to the Sewerage Bureau’s official vehicles.

4. Tour of Sewer Facilities

We will be holding a tour of our sewer facilities. This is a rare opportunity to see facilities that are not normally open to the public, so we encourage you to join us. (Attachment 1 (PDF: 115 KB), Attachment 2 (PDF: 164 KB))

Contact: Pipeline Management Section, Facility Management Division, Sewerage Bureau Phone: 03-5320-6615