#00177
Across semi-arid regions, falling water tables and erratic rains leave villages dependent on distant sources or seasonal supplies, driving distress migration and crop failure — from Rajasthan to Brazil's Semiarido and rural Kenya.
User-run bodies (irrigator communities, water tribunals, village assemblies) allocate scarce water and resolve conflicts cheaply, quickly, and by peers. Commons survive when boundary rules are clear and enforcement costs stay near zero — institutional design, not technology.
Villages build and own earthen johads, contour trenches, sand dams, infiltration canals and ponds with NGO facilitation. Cheap per structure and compounding at catchment scale, but success hinges on hydrogeological siting, maintenance institutions and demand rules.
A standardized 16,000 litre roof-catchment cistern per family, built by locally trained masons with family labor and delivered through a civil-society network with federal funding. Covers drinking and cooking water through an 8-month dry season.