01 / Groundwater
The town says it is the only one in Hokkaidowith no public water supply.
The town's official site introduces Higashikawa as rare even in Japan, and the only town in Hokkaido with no public water supply. All domestic water comes from groundwater, which the town explains is snowmelt stored by the Daisetsuzan mountains that seeps underground over many years and is carried to the town.
- All domestic water is groundwater
- "Only in Hokkaido" is the town's own wording

