Water Safety Plan Impact Assessment: Data Collection and Guidance Note, Oromia Region

This note outlines an approach to measure the outcomes (i.e. the intermediate changes that result from the WSP process) and impacts (i.e. the ultimate changes desired as a result of WSP programme activities) of WSP implementation. Taking an example from the Oromia Region, the process of base-line and end-line data collection is presented, which may generate information on the impacts of WSPs on key water supply indicators.