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Guidelines Formulated for Water Utilities’ Introduction of the System for Utilization of Water Information

May 10, 2019

Joint Press Release with the Ministry of Health, Labour and Welfare

In collaboration with the Ministry of Health, Labour and Welfare (MHLW), the Ministry of Economy, Trade and Industry (METI) formulated the Guidelines for Water Utilities’ Introduction of the System for Utilization of Water Information. Water utilities and other businesses are expected to introduce the System for Utilization of Water Information into their services in accordance with the guidelines and promote their data utilization, and thereby consolidate their business infrastructures.

1. Background and outline

METI and MHLW consider the utilization of a variety of information involving the field of water supply important to finding approaches to solving challenges that water utilities and other businesses are facing and to contributing to consolidation of the business infrastructures of such water utilities. Based on this consideration, in FY2014, the ministries began formulating common rules for data distribution in the field of water supply, constructing prototype platforms for information utilization, and other engaging in other collaborative efforts that they jointly advance.


Based on the achievements that they have made so far, the ministries formulated the Guidelines for Water Utilities’ Introduction of the System for Utilization of Water Information. This System for Utilization of Water Information permits water utilities and other businesses to share information involving water supply facilities and equipment that respective utilities have and data that such utilities’ administrative systems handle in a flexible and cross-sectoral manner and to make use of such information. It also provides standardized specifications of certain components of the system, including a data platform called “Water Supply Standard Platform,” interfaces of applications, devices, etc., and data profiles. The ministries hereby release the guidelines.

The System for Utilization of Water Supply Information provides a variety of applications, e.g., those for data-based monitoring, water operation and management of the Water Supply System Register. Using this system, water utilities and other businesses are able to smoothly refer to necessary data, customize such data to make it more convenient, and analyze such data.

In addition, the System for Utilization of Water Supply Information is expected to help water utilities and other businesses to reduce expenses involving such utilities’ individual systems, while the Water Supply Standard Platform is expected to help them reduce costs involving such individual systems if multiple water utilities jointly make use of the platform. Furthermore, as it integrally manages information on water supply facilities, operation of such facilities and other conditions and permits users to access the system in a secure manner from external environments with consolidated security, the System for Utilization of Water Supply Information is expected to contribute to facilitating the recovery of water supply facilities from damages caused by natural disasters.

2. Details of the guidelines and other information

The guidelines explain details of the System for Utilization of Water Supply Information, including an overview of the system, effects expected to be brought about by introduction of the system, and procedures for the introduction. It also offers an Appendix, a collection of Q&A that water utilities and other businesses are able to refer to in introducing the System for Utilization of Water Supply Information. The guidelines mainly target personnel in charge of and those who belong to departments of planning, procurement of information systems and other related services of the following water utilities and other businesses:

  1. Water utilities and other businesses that intend to integrate a large number of different systems;
  2. Those that have been advancing preparation placing eyes on future business integration or wide-range collaboration;
  3. Those that aim to sophisticate management of water supply by making use of data stored in individual systems;
  4. Those that intend to improve the Water Supply System Register, the management of which is required of such utilities under the Revised Water Supply Act; and
  5. Those that aim to enhance the efficiency, etc. of other services.

Water utilities and other businesses are expected to introduce the System for Utilization of Water Information into their services in accordance with the guidelines and promote their data utilization, and thereby consolidate their business infrastructures.

Reference Materials

Division in Charge

IT Industry Division, Commerce and Information Policy Bureau

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