Tenchi-jin Inc. (headquartered in Chuo-ku, Tokyo; CEO: Yasuto Sakuraba), a space venture certified by JAXA, is pleased to announce that the cumulative number of municipalities* contracted with its water utility DX solution, "Tenchijin COMPASS KnoWaterleak", which leverages satellite data to support sustainable water services, has surpassed 30.

*Includes contract renewals.

How Can We Address the Hidden Risks Beneath Our Feet?

Water and sewage pipelines are buried underground, making it extremely difficult to accurately assess their condition from the surface. Deterioration and damage that progress out of sight often manifest suddenly through events such as water leaks or road collapses, severely impacting daily life and urban infrastructure.

Take water supply systems as an example. In Japan, over 20,000 water leakage incidents occur annually, with the primary cause being aging infrastructure. Many of the pipes laid during the period of rapid economic growth in the 1960s have now been in service for over 40 years. These so-called "aged pipes" span approximately 176,000 kilometers—roughly four times the circumference of the Earth. With replacement costs estimated at 200 million per kilometer, municipalities across the country are facing a critical situation.

Furthermore, the increasing frequency of extreme weather events due to climate change and seismic-induced ground movement are adding to the risks faced by pipeline networks. However, tight financial conditions and a shortage of technical personnel make it unrealistic to replace all aging pipes.

At Tenchijin, we believe it is essential to understand the hidden underground risks from the following two perspectives:

1. Which pipelines are most likely to experience leaks in the near future?
   (Detecting leak risk)

2. Which pipelines are critical to the system?
   (Assessing the impact on essential facilities in the event of a pipeline failure)

Our approach to addressing these two key perspectives is embodied in Tenchijin COMPASS KnoWaterleak.

ABOUT"Tenchijin COMPASS KnoWaterleak"

Tenchijin COMPASS KnoWaterleak is a water utility DX solution that leverages satellite data to support the realization of sustainable water infrastructure. It offers the following core features:

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1. Leak Detection Survey Support Based on Risk Assessment

By utilizing satellite data, the system assesses leakage risk on a 100-meter grid basis, categorizing it into five levels. Combined with pipeline-specific diagnostics—“Pipe-by-Pipe Risk Assessment”—this feature enables more precise understanding of the water infrastructure condition and facilitates more efficient maintenance and management.

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2. Support for Pipeline Renewal Planning Tailored to Local Conditions

The system evaluates both the “Health Index”, based on pipeline diagnostics (i.e., leakage risk), and the “Criticality Index”, which reflects the potential impact on essential facilities such as homes, hospitals, schools, and evacuation centers. By integrating these indices, the solution generates multiple pipeline renewal prioritization scenarios.

These scenarios can be tailored to local needs—whether emphasizing day-to-day leakage risk or social impact during disasters. By incorporating environmental change considerations, Tenchijin COMPASS KnoWaterleak helps municipalities prioritize pipeline renewal with rationality and transparency, supporting the creation of highly actionable and practical plans.

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Tenchijin COMPASS KnoWaterleak will continue to contribute to the sustainable operation of water infrastructure across municipalities in Japan.