zwl-data

Water sources dataset for the ZWL app (Android + iOS, KMP).

Generated monthly (and on demand) by .github/workflows/build.yml from OpenStreetMap data, published to GitHub Pages:

• manifest.json — dataset contract (version, file, sha256, bytes, count)
• water-<version>.geojson — normalized point features (plain GeoJSON)

Source

Features are filtered and normalized from Geofabrik’s Poland OSM extract (https://download.geofabrik.de/europe/poland-latest.osm.pbf):

• amenity=drinking_water, man_made=water_tap, amenity=water_point, natural=spring, man_made=water_well, amenity=fountain (only with drinking_water=yes)
• access in {private, no} and disused=yes are dropped
• deduplicated by osmId

No PBF/extract intermediates are committed — only the final GeoJSON and manifest.

Attribution / licence

Water source data © OpenStreetMap contributors, available under the Open Database License (ODbL) 1.0. See https://www.openstreetmap.org/copyright.

Because the modified database is redistributed (bundled app baseline and downloaded dataset), the ODbL attribution applies to all consumers of this data, including the ZWL app.