AUWSA, responsible for water supply and sanitation services in Arusha City, Tanzania, aimed to improve its operations and reduce nonrevenue water through efficient leak detection and repair. Transitioning from open-source software to ArcGIS provided AUWSA with robust mobile data collection capabilities and powerful analytical tools. Using ArcGIS Collector, plumbers, and surveyors collected leakage data in the field, facilitating informed decision-making.