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Tour of water purification plants

Last Updated September 18, 2024

Acceptance and Reservation of Facility Tours

In Water Works Bureau, we accept tours of water purification plants and other facilities.
By actually observing the water purification process in which safe and high-quality tap water is made, the purpose is to deepen the understanding of the water supply business and to make the water supply feel more familiar.
Facility tours for 2024 have started accepting on Thursday, February 1, 2024.

Contents of the tour

We will introduce facilities using images, tour of sinking ponds and filtration ponds, simulated sinking experiments, etc. (It varies slightly depending on the water purification plant.)

※For Nishiya Water Purification Plant and Kosuzume Purifiction Plant, videos introducing water purification plants are available on YouTube.
Please see "Let's study with" Hama Pyeong "" on the public relations video (Water Works Bureau) list page.

Treatment process of water treatment plants

Target facilities and date of tour

Target facilities and date of tour
Target facilities Tour dates (excluding public holidays) Number of recipients
Kawai Purification Plant Monday to Friday

Up to 80 elementary school students and 2 classes
Up to 50 general people

Kosuzume Purifiction Plant Tuesday, Wednesday

Up to 70 elementary school students and 2 classes
Up to 30 general people

Aoyama Water Source Office (Aoyama, Midori-ku, Sagamihara) Monday to Friday Up to 40 elementary schools and the general public

※Holidays and New Year's holidays (from December 28 to January 4) are not held. In addition, from the end of April to the beginning of July, class tours by elementary school students are given priority.
※Nishiya water purification plant and water quality inspection room (water quality section) will stop accepting tours during the construction period due to the Nishiya water purification plant redevelopment project. .
※The Water Supply Memorial Hall was completely closed in 2021 due to the Nishiya Water Purification Plant Redevelopment Project.
※In Kawai Purification Plant, we will visit only Cerarocca, a membrane filtration facility.
※Please use public transportation for visitors.
※Please follow the instructions of the staff of the guide when taking photos.

Tour time

Each facility will be held once in the morning and afternoon.

Morning section: About 2 hours from 9:30
Afternoon: About 2 hours from 1:30

※The Kawai Purification Plant tour will take about an hour.

Application destination and method

We accept telephone or facsimile at Water Works Bureau Customer Service Center.
In the case of telephone, it will be accepted from 5 business days after the reception.
In case of facsimile, please write required items on the fax application form and send it to us. (* As with the telephone, it will be accepted from 5 business days later.)

Water Works Bureau Customer Service Center
Phone number: 045-847 (Hachiyonna)-6262
Facsimile: 045-848-4281

※After applying, we will contact you separately from the target facility to confirm the reservation.

Location and transportation

  • Kawai Purification Plant
    • Location 2555, Kamikawaicho, Asahi-ku, Yokohama-shi
    • Transportation Get off at Mitsukyo Station on the Sotetsu Line
    • About 12 minutes walk from "Kamekoyama" bound for municipal, Sotetsu, Kananaka bus "Wakabadai Chuo" bound for "Wakabadai Chuo"
    • Get off at JR Tokaichiba Station
    • About 8 minutes walk from "Nagatsuta Minami" bound for municipal bus 55 "Wakabadai Chuo" bound for "Wakabadai Chuo"
  • Kosuzume Purifiction Plant
    • Location 2470, Kosuzumecho, Totsuka-ku, Yokohama-shi
    • Transportation JR Ofuna Station West Exit Get off at Kananaka Bus
    • A 15-minute walk from Koshinzuka bound for "Standing Terminal, Matano Pharmaceutical University"
  • Aoyama Water Source Office
    • Location 3482, Aoyama, Midori-ku, Sagamihara-shi
    • Transportation Get off at Hashimoto Station on JR and get off at Mikagi for Kananaka Bus bound for Mikagi and walk 30 minutes.

Signboard of "Yokohama Channel Founded Water Supply Headrace"

In Meiji 20 (1887), Japan's first modern water supply was born in Yokohama.
At the time of its establishment, the water supply route was from Mitsui-mura, Tsukui-gun (currently Midori-ku, Sagamihara-shi), at the confluence of the Sagami River and the Doshi River, where the water was taken, to the Nogeyama Water Purification Plant (currently Nogeyama Reservoir). It was about 44 km to).
In some sections of this water supply founding water supply headrace, Sagamihara-shi, Yamato-shi, Machida-shi and Yokohama-shi conclude agreement respectively, and are maintained as green paths and promenades.
Along the road, a signboard explaining the outline of the water supply facilities in an easy-to-understand manner was installed in 2007 to commemorate the 120th anniversary of the foundation of modern water supply. There are 26 installation locations on the headrace track at the time of its establishment.
On holidays, why don't you think about important water while walking along the green road and promenade?

Image of signboard
Signboard

Image of green paths and promenades
Green paths and promenades

Installation location
Number Location of Signboards Information on installation locations Name of the town and village at that time
1 58, Mii, Midori-ku, Sagamihara-shi land Boat platform Mitsui Village
2 1130, Kawashiri, Midori-ku, Sagamihara-shi land Near Ogura Bridge ※There are closed sections Kawashiri-mura
3 Near 681, Oshima, Midori-ku, Sagamihara-shi Near the Sagami River Nature Village, Seiryu Village ※There are closed sections Oshimamura
4 3339, Oshima, Midori-ku, Sagamihara-shi Elderly Welfare Center Keishoen Oshimamura
5 2074, Tana, Chuo-ku, Sagamihara-shi land Jogging course Tanamura
6 44, Kamimizo, Chuo-ku, Sagamihara-shi land Yokohama Channel Michi Green Road Kamimizo-mura
7 1102, Taima, Minami-ku, Sagamihara-shi land Azamigaya Intersection Tohma Village
8 Near 2096, Shimomizo, Minami-ku, Sagamihara-shi Doyama Bridge (Doho River) Shimomizo-mura
9 1900, Asamizodai, Minami-ku, Sagamihara-shi land Near Joshibi University of Art and Design Shimomizo-mura
10 2-10-28, Futaba, Minami-ku, Sagamihara-shi ahead Futaba Amusement Park Isobe-mura
11 5-7, Higashirinkan, Minami-ku, Sagamihara-shi Sagamihara Suido Amusement Park Kamitsuruma-mura
12 1454, Shimotsuruma, Yamato-shi land In Sakura Promenade Park Shimotsuruma-mura
13 3-1, Tsuruma, Machida-shi In Tsuruma Park Tsuruma-mura
14 4-6, Tsuruma, Machida-shi ahead On Route 246 Bypass Tsuruma-mura
15 6-10, Tsuruma, Machida-shi In Tsuruma Triangle Park Tsuruma-mura
16 83, Kawaihoncho, Asahi-ku, Yokohama-shi land Bus Stop Fukusen Teramae Shimokawai-mura
17 9, Tsuokacho, Asahi-ku, Yokohama-shi land Near the Tsuokacho Intersection Shimokawai-mura
18 167, Imajukunishicho, Asahi-ku, Yokohama-shi land Katabira River Green Road Imajuku-mura
19 2-20, Tsurugamine, Asahi-ku, Yokohama-shi Tsurugamine Park Entrance Kawashima-mura
20 24-3, Nishikawashimacho, Asahi-ku, Yokohama-shi In Nishikawajima Park Kawashima-mura
21 4-5, Higashikawashimacho, Hodogaya-ku, Yokohama-shi In Azumakawa Island Channel Michi Park Kawashima-mura
22 257, Bukkoucho, Hodogaya-ku, Yokohama-shi land Bus Stop Bukkoucho Buddha village
23 5-1, Kawabecho, Hodogaya-ku, Yokohama-shi Near the intersection in front of Kawabe Park Katabiracho
24 25, Minamisengencho, Nishi-ku, Yokohama-shi Within Syaguuji Park Lawn village
25 1-94 Fujidana, Nishi-ku, Yokohama In front of Fujidana "Koban" (police box) Tobecho
26 63-10, Oimatsucho, Nishi-ku, Yokohama-shi Within Nogeyama Park Tobecho

For inquiries regarding water supply, please contact the Water Works Bureau Customer Service Center.

Water Works Bureau Customer Service Center

Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.

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Inquiries to this page

Water Works Bureau Water Purification Department

Telephone: 045-671-3544

Telephone: 045-671-3544

Fax: 045-212-1158

Email address: su-josui@city.yokohama.lg.jp

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Page ID: 225-289-735

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