About reduction of water charges due to water leak (water leak)

Water pipes and household water supply facilities separated from Water Works Bureau water pipes buried under the road are property of the customer and must be managed by the customer. （Yokohama City Water Supply Ordinance, Article 17 Clause 1 (outside site))
Therefore, even if the amount of water measured by the water meter includes the leak, the customer will be required to pay the water fee for the amount of water in principle.
However, water leakage from unexposed water pipes, such as underground or inside the walls of buildings, may be difficult to detect even if the customer always performs appropriate management. Etc. may also be expensive.
For this reason, there is a system that allows you to reduce a part of the amount of water from the meter reading, including the amount of water leakage, and receive a reduction in water rates, etc., only when certain standards are met. (Yokohama City Water Supply Ordinance, Article 29, Paragraph 1, Item 3 (outside site), Ordinance Enforcement Regulations, Article 20, Paragraph 1, Item 3 (outside site))

• Rather than reducing all the amount of water that is considered to have increased due to water leakage, customers will be required to bear a part of the amount of water that is considered to have increased.
• This system does not support the cost of water leakage repair.

It is water leakage that occurs between the water meter and the faucet, and is caused by damage or breakdown of water supply pipe and water supply equipment in residential land. In addition, what is not based on the intentional or negligence of the customer or a third party.

About application period of reduction such as water charges due to water leakage, we apply for meter reading month including water leakage.

• If the customer fails to repair while knowing the fact that water is leaking.
• When water leaks due to damage due to construction work, etc.
• Compare the past actual amount of water used and the amount of water for the relevant month including the leaked water, and there is no change in the amount of water.
• When water leaks from connected hoses or equipment due to carelessness such as forgetting to close the faucet.
• When the amount charged does not change even if the amount of water including the leaked water is reduced (when within the basic fee) [To the mechanism of water rates】
• An aging pipe with a high frequency of water leakage without replacement work after receiving guidance from Water Works Bureau on replacing the pipes.

When the repair of the water leak is completed, the customer must download the following “Application for Certification of Water Consumption Due to Water Leakage”, write required items, and confirm that the repair was performed (Invoice for water leakage repair) Please attach a copy of the receipt, etc.) and mail or bring it to the water supply office (PDF: 387KB) that has jurisdiction over the customer's water use location.
In addition, please note that you may be asked to submit it again if there are any omissions or repairs details in the submitted “Application for Certification of Water Consumption Due to Water Leakage”, you may be asked to submit it again.
※Please specify the details of the repair (repair parts, replacement parts, etc.) specifically

• Water Consumption Certification Application Form (PDF: 188KB)
• List of submission destinations for application documents (PDF: 387KB)

※Customers who cannot download the “Application for Certification of Water Consumption Due to Water Leakage” will be mailed, so please contact the Water Works Bureau Customer Service Center.

• Even if the customer makes minor repairs, such as replacing faucet tops or packing, it may be subject to reduction due to water leakage.Water supply office (PDF: 387KB) having jurisdiction over water supply use placePlease contact us at the counter.
• For inquiries by phone, please contact us.Water Works Bureau Customer Service CenterPlease contact us for more information.

Leakage is not only a loss of valuable water resources, but also the risk of causing secondary disasters such as the collapse of the ground in residential lands and flooding of buildings. Please check the water circulation and water meter.

• How to view the water meter

※If you have any questions, please contact the Water Works Bureau Customer Service Center.
We will respond to your needs, and the department in charge will contact you back.