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Hokubu No.1 Wastewater Treatment Plant

Last Updated October 1, 2021

Hokubu No.1 Wastewater Treatment Plant introduction

Hokubu No.1 Wastewater Treatment Plant Main Gate

The whole view of Hokubu No.1 Wastewater Treatment Plant


Return to the introduction of water reclamation centers


Hokubu No.1 Wastewater Treatment Plant is a combined sewage treatment facility that covers the northwestern part of Tsurumi Ward and part of Kohoku Ward. Sewage is cleaned by the activated sludge method and discharged to the Tsurumi River. In addition, along the Tsurumi River, a first-class river, we manage three sewage relay and rainwater drainage pumping stations, five rainwater drainage pumping stations, and three underground pumping facilities, and quickly drain rainwater into the Tsurumi River. We are working to prevent flooding in the town. In addition, rainwater reservoirs are operating as an initial pollution countermeasure during rainfall.

Overview of Hokubu No.1 Wastewater Treatment Plant
Site area100,320m2
Planned processing area2,150ha
Planned population297,100 people
Planned processing capacity139,100 m3/day (currently 149,600 m3/day)
Sludge treatmentCompressed to Hokubu Sludge Treatment Plant for processing

You can download the outline brochure of this center.
"Introduction of Water Reclamation Center"-Hokubu No.1 Wastewater Treatment Plant (PDF: 480KB)



At the same time as treating sewage, Hokubu No.1 Wastewater Treatment Plant manages a large number of pumping stations to prevent flooding in the town. In addition, Motomiya pumping station and rainwater reservoir are installed as measures to prevent pollution during rainfall, and the upper part is open as a park.

Kamisueyoshi Pumping Station

Overview of the Kamisueyoshi Pumping Station

Overview of Kamisueyoshi Pumping Station
Site area2,650m2
Planned drainage area131.9ha
Planned drainage capacity792.0m3/min
Start of operationMarch, 1987

Sueyoshi Pumping Station

Overview of the Sueyoshi Pumping Station

Overview of the Sueyoshi Pumping Station
Site area2,220m2
Planned drainage area428.0ha
Planned drainage capacity625.8m3/min
Start of operationMarch, 1964

Takada Pumping Station

Overview of Takada Pumping Station

Overview of Takada Pumping Station
Site area5,300m2
Planned drainage area305.0ha
Planned drainage capacity2025.0m3/min
Start of operationMarch, 1985

Tarumachi Pumping Station

Overview of the Tarumachi Pumping Station

Overview of Tarumachi Pumping Station
Site area14,700m2
Planned drainage area604ha
Planned drainage capacity2,774.2m3/min
Start of operationApril, 1967

Kita-Tsunashima Pumping Station

Overview of Kita-Tsunashima Pumping Station

Overview of Kita-Tsunashima Pumping Station
Site area6300m2
Planned drainage area913ha
Planned drainage capacity1,989.0m3/min
Start of operationMay, 1972

Egasaki Pumping Station

Overview of Egasaki Pumping Station

Overview of Egasaki Pumping Station
Site area2,630m2
Planned drainage area147.0ha
Planned drainage capacity960.0m3/min
Start of operationNovember, 1991

Tsunashima No. 2 Pumping Station

Outline of Tsunashima No. 2 Pumping Station
Site area496.0m2
Planned drainage area47.8ha
Planned drainage capacity67.2m3/min
Start of operationJuly, 1961

Minami Tsunashima Pumping Station

Overview of Minami-Tsunashima Pumping Station
Site area1,200m2
Planned drainage area257.9ha
Planned drainage capacity64.2m3/min
Start of operationFebruary, 1958


We participate in facility tour events and local festivals.


Access Map (PDF: 71KB)

When you come from JR Tsurumi Station

Tsurumi Station Yokohama East Exit Bus Terminal

From Tsurumi Station Yokohama East Exit Bus Terminal No. 1 and 2, get off at the fourth bus stop, Morinaga Factory-mae, and the boarding time is about 10 minutes.

(As of November 2015, you can use 13 municipal buses from platform 1 and 29 municipal buses and 155 municipal buses from platform 2.)


In front of the bus stop Morinaga Plant

When you get off the bus stop, the front is Morinaga Confectionery Tsurumi Plant, turn left and cross the next traffic light to Tsurumi Sports Center. It's about a 10-minute walk to Hokubu No.1 Wastewater Treatment Plant.


Morinaga Bridge

Tsurumi Sports Center across Morinaga Bridge and Hokubu No.1 Wastewater Treatment Plant on your right.


Hokubu No.1 Wastewater Treatment Plant exterior

I'm going on while looking at Hokubu No.1 Wastewater Treatment Plant on my right. The main gate is the back of the left.


Hokubu No.1 Wastewater Treatment Plant Main Gate

Here's the main gate of Hokubu No.1 Wastewater Treatment Plant.


When you come by car

Intersection in front of Morinaga Plant

From Tsurumi Station, turn right at the intersection in front of Morinaga Factory, cross the Morinaga Bridge, and turn right to Hokubu No.1 Wastewater Treatment Plant.


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Inquiries to this page

Sewer River Bureau Sewerage Facilities Department Hokubu No.1 Wastewater Treatment Plant

Telephone: 045-572-2281

Telephone: 045-572-2281

Fax: 045-572-1109

Email address: gk-hokubu1wtp@city.yokohama.lg.jp

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Page ID: 954-827-652

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