WWW.DELAGUA.ORG CASE STUDY AUTHORS Stephany Kersten, Ammatilla Ahmed from CARE International Yemen & Kaid Al Sidrayh from Water and Environment Centre, Sana’a University, Yemen BACKGROUND Generally water quality testing is done to monitor the maintenance and operation of drinking water systems. In Yemen CARE uses the DelAgua water testing kit (developed by OXFAM, reproduced by the Robens Centre for Public and Environmental Health, Surr

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