Inquiry about water supply to Water Works Bureau customer Service Center
Water Works Bureau customer Service Center
Telephone: 045-847-6262 fax: 045-848-4281
※You run, and please be careful not to make any mistake
Last update date December 28, 2018
Water source of Yokohama is 5 systems of the Doshi River, Sagamiko, Banyu River, company group Sakawa River, company group Sagami River.
After cleaning in method of water purification called rapid filtration method (in Kawai film filtration method) at water purification plant of three city of Kawai, Nishiya, willow tit and four water purification plant of wide area Channel company corps (※) in Kanagawa, and performing water quality test, and having confirmed security, water of these 5 systems is saved in distributing reservoir of 22 city. We send from there to house of everybody with water pipe.
The name | Daily water intake quantity | What water is it? | Where do you go? |
---|---|---|---|
The Doshi River system | 172,800 cubic meters | Water of the Doshi River | To Kawai water purification plant |
Sagamiko system | 394,000 cubic meters | Water which we saved in Sagamiko | To Nishiya water purification plant |
Banyu River system | 284,700 cubic meters | Water which had enough being Lake Tsukui mainly | To willow tit water purification plant |
Company group Sakawa River system | 605,200 cubic meters | Water which had enough being Lake Tanzawa mainly | To water purification plant of wide area Channel company group (※) in Kanagawa |
Company group Sagami River system | 499,000 cubic meters | Water which had enough being Lake Miyagase mainly | To water purification plant and willow tit water purification plant of wide area Channel company group in Kanagawa |
(※) Yokohama-shi, Kawasaki-shi, Yokosuka-shi, Kanagawa is public, and wide area Channel company group in Kanagawa invests and it produces tap water and sells to investment 4 group.
Modern channel of Yokohama was completed for the first time in Japan in 1887 (Meiji 20) 130 years ago.
Modern water supply is water supply which is using currently which pressures with water pipe of iron, and sends water which we cleaned by filtration to faucet.
Population of Yokohama rapidly increased after port was opened in 1859 (Ansei 6), but, only with water which was salty even if a lot of places that filled up the sea and marsh dug well, lacked drinking water.
Therefore we asked Henry Spenser Palmer of British engineer for plan of Yokohama Channel and constructed for two years six months and completed modern times Channel.
"Way will forest at the head of a river" of Yokohama-shi is in one, Doshi-mura, Yamanashi of water source of Yokohama.
We purchased the forest of Doshi-mura from Yamanashi in 1916 (Taisho 5) to follow the quality of the water of "the Doshi River" which was one of the precious water sources of Yokohama-shi. We own forest at the head of a river of 2,873 hectares equal to about a one-third of Doshi-mura and are managing now. In forest at the head of a river, "we save water" is said to have three roles (water source cultivation function), "we purify water" "relaxes flood".
The forest which Yokohama-shi owns maintains "we save water" premeditatedly so that three roles of water source cultivation to "relax flood" can serve as "we purify water".
On the other hand, volunteer groups of Yokohama-shi where Water Works Bureau called push forward the forest maintenance such as thinning as the forest which is not well-kept increases, and forest under private ownership of Doshi-mura has decreased water source cultivation function.
Even citizen's all of you who could not participate in volunteer activity directly installed fund to be able to participate in water source maintenance activity in form called fund cooperation widely.
As for this fund, it is from contribution from all of citizen, company, the groups and a part of sales of plastic bottle "true children The Water".
Inquiry about water supply to Water Works Bureau customer Service Center
Water Works Bureau customer Service Center
Telephone: 045-847-6262 fax: 045-848-4281
※You run, and please be careful not to make any mistake
Water Works Bureau General Affairs Department General Affairs Division
Telephone: 045-671-3105
Telephone: 045-671-3105
Fax: 045-212-1155
E-Mail address [email protected]
Page ID: 199-670-580