Classic leak detection methods only cover very small sections of water networks. With the analysis of satellite images leaks in entire water supply networks can now systematically be detected and documented in a single step. Utilis Ltd. – a Siemens partner from Israel provides a technology consisting of a specialized radar signal (SAR) generated from satellites which are analyzed with a patented algorithm and processed to identify specific indicators of wet soil saturated with potable water, screening out the signal noise and other interferences. The result is a map showing likely leak locations as Points of Interest (POI).  

• Satellite-image was obtained and processed using the innovative technology to identify water losses in critical areas (old town) of the distribution network. 
• The detected leakage points were inspected by an experienced field inspection crew. 
• A total of 28 leaks were verified pursuant to the satellite survey program. 
• An average of 4.0 leaks was found per crew day and 0.8 leaks were found per kilometer inspected.

PVK operates the water management infrastructure of the City of Prague. It is in charge of producing and distributing drinking water and draining and treating wastewater. It focuses on customer services helping to improve and simplify contacts with customers. PVK observes Customer Service Commitments, which are on a par with the European standards of the parent Veolia Eau Group. In addition to its core business, PVK also offers services to external customers such as detection of hidden faults and failures, surveys and measurements in the sewerage network, laboratory analyses, erection of service pipes, and rodent control.