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Shibaura Water Reclamation Center

photo:Shibaura Water Reclamation Center

Starting operation in 1931, Shibaura Water Reclamation Center is the third oldest Water Reclamation Center in Tokyo. The original surroundings of dock warehouses have long since been replaced with rows of office buildings as the area has been absorbed into the city. The treatment area covers the most of Chiyoda, Chuo, Minato, Shinjuku and Shibuya ward and a some parts of Shinagawa, Bunkyo, Meguro, Setagaya and Toshima ward, an area of 6,440 ha. This is equivalent to the land area inside the JR Yamanote Line.
The treated water is discharged to Tokyo Bay(canal). A part of the treated water is cleaned through sand filtration and then used inside the Center for cleaning facilities, cooling machines, and flushing toilets. The water further cleaned through ozonization is supplied to the neighboring buildings as water for flushing toilets.
The generated sludge is pumped through pressure pipelines to the Nanbu Sludge Plant for treatment.

Illustration:Treatment area


Operation started March 1931
Site area 199,127m2
Treatment capacity 830,000m3/day
Wastewater treatment facilitiesGrit chamber 14
Primary sedimentation tank 10
Reaction tank 17
Secondary sedimentation tank 24
High-rate filtration system 2
Storage tank in wet weather 94,600m3

Average quality of influent and final effluent

The final effluent form the water reclamation center complies completely with the water quality standards of the Tokyo Metropolitan Environmental Security Ordinance and is sufficiently clean for fish to live in.


ItemInfluentFinal effluentRegional water
quality standards
BOD 220 200 13 9
COD( Mn) 110 100 14 12 35 or bellow
Total nitrogen 47.9 47.2 18.6 17.5 30 or bellow
Total phosphorus 4.6 4.6 0.8 0.4 3.0 or bellow

Average values of 24-hour test conducted in FY2018

※ The higher values of BOD and COD indicate the higher levels of water contamination. BOD describes the amount of oxygen required by microorganisms to eat organic material in water, and COD describes the amount of oxygen required by oxidizer to decompose organic material in water. The quality levels of discharged water are specified in terms of BOD for rivers and COD for seas. Total nitrogen and total phosphorus are closely related to the generation of red tides.

Sewerage Components

The sewerage system is principally made up of 3 facilities.
Sewers, which collect and carry sewage.
Pumping stations, where sewage is pumped up so that the sewers do not get too deep.
Water reclamation centers, where sewage is treated to be clean water.
Inspections, cleaning, and repairs are done daily in order to make sure each of these facilities works properly.

Sewerage System Components

The Role of Tokyo Sewerage

Improvement of Living Environment through Sewage Treatment

Sewage discharged from homes and factories is treated to ensure a comfortable living environment.

Illustration:Improvement of Living Environment through Sewage Treatment

Preventing Flooding through the Removal of Rainwater

The city is protected from flooding through the speedy drainage of stormwater which falls on land surface.

Illustration:Preventing Flooding through the Removal of Rainwater

Protecting the Global Environment

We treat sewage and release cleaned water, to carefully protect the water quality of rivers and the sea. We also recycle treated water and sludge, and utilize unused energy, as we work to build a recycling city.

Water Quality of Public Water Bodies

Ground plan

Illustration:Ground plan

Features of Shibaura Water Reclamation Center

Reclaimed Water Utilization Project Contributing to Recycling-oriented City

There is a large volume of treated water, with stable water quality, so it can be used effectively as reclaimed water.
At Shibaura Water Reclamation Center, a sand filtration facility etc. removes tiny pollutants from treated water, and sodium hypochlorite is injected, creating water used for cleaning and cooling of machinery facilities in the center, water to clean toilets, etc.
A reclaimed water production facility began operating in April 2010, with ceramic used in filtering material in a reclaimed water treatment process for the first time in Japan. Highly durable ceramics are used in the reclaimed water filtration process, for a long term stable supply of low cost reclaimed water. This helps meet the growing demand for toilet water in office buildings and road sprinkling water, etc., which have been supplied for some time.

photo:Reclaimed water facility

The water production facility with ceramic film filtration

Illustration:Reclaimed water facility

Structure of ceramic film filtration

Skyscraper built on top of reservoir Projects for top section utilization

The reservoir for rainwater storage which commenced operation in Apr 2015 is a facility for improving the water quality of public water supply. Also, the Shinagawa Season Terrace which is constructed on top of the reservoir facility is able to make use of the recovered wastewater heat and recycled water for room heating purposes and flushing toilets.

photo:Skyscraper built on top of reservoirProjects for top section utilization

Above-ground Park as a Spot of Recreation and Relaxation

The above-ground space of the westewater treatment facilities is a park, where visitors can enjoy seasonally blooming flowers and beautiful urban landscape.
There is also an athletic ground to enjoy sports, such as tennis and futsal.

photo:The above-ground space of the facilities is open to the public as the Minato-ward Central Park

The above-ground space of the facilities open to the public as the Shibaura Central Park.

Shibaura Summer Festa

In July each year, Shibaura Summer Festa is held to help people understand the work of the Water Reclamation Center and the roles of sewerage. Many people visit the center.

photo:Children digging out sweet potatoes in the Center

UCHIMIZU(sprinkling water) using reclaimed water

Guide map

Address 1-2-28 Kounan, Minato-ku, Tokyo 108-0075, Phone:03-3472-6411 MAP
Access 15-minute walk from JR Shinagawa Station East Exit (Konan Exit),
15-minute walk from JR Tamachi Station East Exit,
1-minute walk after getting off the Metropolitan bus to "Tokyo Tower" or "JR Tamachi Station East Exit" at "Suidoukyoku Kanri Jimusho Mae" from JR Shinagawa Station East Exit (Konan Exit).

Map:shibaura water reclamation

Tokyo Sewerage Museum "Rainbow"

Tokyo Sewerage Museam Rainbow
There is a facility to enjoy the experience of learning about the sewerage system, its roles, and the importance of water environment.

  • Hours:nine half o'clock to sixteen half o'clock
  • Entry Fee:Free
  • Closed:Mondays(open on holiday Mondays, closed the next day)and the New Year's season
  • Address:2-3-5 Ariake, Koto-ku Ariake Water Reclamation Center Management office(A-tower)5th floor
  • Telephone:03-5564-2458
  • Website:Tokyo Sewerage Museum "Rainbow"

Tokyo Bureau of Sewerage

Tokyo Amesh

Tokyo Amesh is the system that shows rainfall in and around Tokyo in real time. The rainfall is measured by radars and ground rain gauges.

※ Tokyo Amesh is the registered trademark of the Tokyo Metropolitan Government.

Tokyo Amesh

Virtual Sewer

Animation and video are used to allow people to experience the sewer system and wastewater treatment system in a fun way that would not be normally possible.

click Virtual Sewer

Beware of croocked dealer who pretend to be related to the Bureau of Sewerage!

The Bureau of Sewerage does not rely on businesses to repair or clean drainage facilities in housing.

Facility tours of Water Reclamation Centers

Facility tours of water reclamation centers are available except weekends, holidays, and the New Year's season.
Please contact us about reservations and details.


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