FOSS4G software developments for Water Utilities Management in Eastern Africa by using Vector Tiles
2021-10-01, 08:30–09:00, Ushuaia

In recent 6 years, I was involved in water projects in Kenya and Rwanda by using FOSS4G software. A lot of water utilities in Africa are struggling to utilize their own GIS data because of lack of budget and skills. I was always thinking how they can easily manage their water utilities by GIS. Thus, I developed several open source software toolkits for water utilities in Rwanda and Kenya. The details implementation of softwares will be presented at the different talks - "An implementation of FOSS4G - QGIS, QField and Vector Tiles for rural water supply management in Rwanda" and "The impact of application of FOSS4G on Non Revenue Water" in FOSS4G 2021. In this talk, I will introduce my developed open source software and also talk about what I will develop in the future.

My tools are documented at GIS for Water website. I mainly develop three types of software as follows.

  • Software for Vector Tiles Management - Generating, Updating, Deploying automatically
  • Plugins for Mapbox GL JS v1 - mapbox-gl-export, mapbox-gl-legend, mapbox-gl-elevation, etc.
  • Parcels, Terrain RGB and EPANET for Water Management

This talk is related to the following talks:

My developed tools use the following FOSS4G software:

  • PostGIS: Data store for water utilities management
  • Mapbox vector tiles: Using it for online web GIS service
  • United nations vector tiles toolkit: Using it for base map.
  • EPANET:Using it for hydraulic modeling.

Currently my parters are as follows:

  • Water and Sanitation Corporation (WASAC), Rwanda
  • Narok Water and Sewerage Services Company (NARWASSCO), Kenya
  • Nanyuki Water and Sewerage Company (NAWASCO), Kenya
  • Nakuru Water and Sanitation Services Company (NAWASSCO), Kenya

Authors and Affiliations

Jin IGARASHI: Open source GIS software developer, also former JICA expert of the water project in Rwanda. Developing GIS systems for water utilities in both Kenya and Rwanda as volunteer basis.

Requirements for the Attendees


Github repository

vector tiles tools documentation




Software/Project development


2 - Basic. General basic knowledge is required.

Language of the Presentation


Senior software developer specializing in GIS field with more than 10 years of work experience in Japan and Eastern Africa. Main interest is how GIS can collaborate with water supply management efficiently. I am also main contributor to translate some QGIS documents, QField and Input to Japanese language.

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