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Published on: 12/08/2013

USAID is adopting and promoting an approach which aims to really track and better understand the underlying causes of poor sustainability in the WASH sector. This is great news. Sustaining WASH services is complex and dependent not only the hardware (the pumps, latrines and pipes), but also a range of the so-called software elements; for example reliable management entities, long-term external support and monitoring, adequate financing and so on. Measuring coverage is one thing, looking at functionality is also a useful proxy, but if we really want to know where the pinch-points are and how something so seemingly simple as water flowing out of a tap can fall down, it requires a comprehensive and powerful tool.

WASH Sustainability Index Tool








This is just what USAID and Rotary International have developed with the new Sustainability Index Tool, or SIT, which has just been released and is available for download on the WASHPlus website (link below). The tool was developed by Aguaconsult over a period of more than 18 months and has been tested in three country programmes, with a further two countries being rolled out in the coming months.

The objective of the tool is to enable an assessment of the likely sustainability of WASH interventions using a range of both quantitative and qualitative indicators. It is designed to assess the extent to which crucial sustainability criteria are being met across a range of indicators grouped under five main areas or factors: institutional, management, financial, technical and environmental. The tool is used to analyse specific WASH interventions - for example, a community-managed borehole or a school latrine - and provides a set of generic indicators under each of the five factor areas. The tool also expands the level of enquiry beyond only the physical condition of the water supply, sanitation or hygiene infrastructure to include district and national level aspects which can have a bearing on the continuity of services. The indicators in the tool are based on global best practice and the tool pilot testing experiences, but are also meant to be ‘contextualised’ to the country or region in question.

The tool provides a step by step process guide for carrying out an assessment, including the modification of indicator questions to fit the reality of whichever country context is being investigated, as well as how to approach sampling of communities and households, preparing field teams and analysing the data. The tool produces sustainability scores for the different factors and can also present the information by type of intervention.


So hats off to both USAID and Rotary International for supporting the development of this tool. It will require further support to carry on testing and refining and to scale up use within both of these very different, but complementary organisations. I look forward to the new round of experience and to feedback on the tool itself.

Wivenhoe, 12th August 2013


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