Twenty Years in a Temporary Camp, the Well Runs Dry

Refugee camps designed for temporary occupation now persist for 20+ years (Dadaab, Kenya since 1991; Kakuma since 1992). Water supply relies on boreholes pumping groundwater, but extraction rates set during emergencies — when the priority is immediate survival — often exceed sustainable yield. In Dadaab, boreholes now pump from increasingly deep aquifers as upper layers deplete. At Kakuma, groundwater salinity is rising along the freshwater lens edges, indicating over-extraction. UNHCR's standard of 20 liters/person/day is not met in 69% of settlements, yet in many of those same locations, extraction is already unsustainable relative to recharge.

Approximately 30 million refugees live in camps or settlements, nearly all dependent on groundwater. Aquifer depletion is irreversible on human timescales for deep fossil aquifers and multi-decadal for shallow aquifers. When wells run dry or go saline, there is often no alternative water source within viable distance. Host community water resources are also threatened, creating tension between refugee and local populations. The humanitarian water crisis is occurring in regions already facing climate-driven water stress.

UNHCR has deployed 1,200+ smart sensors monitoring flow rates, pressure, and water quality at boreholes, and solarized 50% of pumping systems. But monitoring extraction without modeling recharge is like monitoring a bank balance without tracking deposits. Surface geophysical surveys (GPR, electrical resistivity) have been used at Kakuma and in Chad to locate new boreholes, but these find water — they don't establish sustainable extraction rates. The UN-IGRAC "Groundwater for Refugees" initiative is building hydrogeological assessments, but coverage remains patchy and the connection between assessment data and operational pumping decisions is weak.

Integration of aquifer recharge modeling with real-time extraction monitoring to create adaptive pumping schedules. Key requirements: low-cost aquifer characterization methods deployable in emergency contexts (not just borehole logging but recharge estimation from precipitation, soil, and geological data); decision-support tools that translate hydrogeological data into operational pumping limits for camp water operators; demand management through greywater reuse and rainwater harvesting; and groundwater governance frameworks balancing refugee needs with host community water rights.

A team could build a simplified aquifer recharge model for a specific refugee settlement using publicly available geological, precipitation, and satellite data (GRACE gravity data for groundwater storage changes), then develop an operational decision tool that recommends maximum daily extraction rates. Hydrogeology, environmental engineering, and data science skills would be most relevant. The IGRAC database provides global groundwater datasets.