Everyone wants Impact. In the spirit of aid effectiveness, all water and sanitation development programmes are required to provide evidence of impact. This is beyond the conventional engineering rhetoric of number of pumps/taps or sanitation systems constructed and there contribution to the Millennium Development Goal Number 7.
Impact is now measured in terms of the attribution of water and sanitation on MDG 4 and 5. Health, education, socio-economic impact.
In Mozambique, the One Million Initiative, undertook a baseline in 1600 households in 40 control and 40 treatment villages in 2008. It repeated, the household survey in 2010 and compared the impact of WASH interventions on the health, educational and socio economic status of the beneficiaries. This was further extended to 80 schools.
The study demonstrated that WASH interventions have an impact at scale. Prevalence of water-related diseases from 31 to 14% with a strong and robust statistical correlation between sanitation and health.
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