__NOTOC__[[Image:UNDP logo.png|right|50px|link=http://www.undp.org/content/undp/en/home/]][[Image:washNeeds.png|thumb|right|200px|Photo: [http://www.undp.org/content/undp/en/home/ undp.htmlorg]]]The [http://contentwww.undp.org/gocontent/newsroomundp/publicationsen/home/librarypage/poverty-reduction/poverty-websitemdg_strategies/mdg-namdg_needs_assessmenttools/mdg-needs-assessment-toolsmdg_needs_assessmenttools.en html Water and Sanitation Needs Assessment Tool] was developed in 2006 by the United Nations Development Programme (UNDP) to assess the estimates and associated costs needed to support water and sanitation interventions as part of a national investment strategy for meeting the Millennium Development Goals. It consists of a spreadsheet and a user guide.
'''The tool comprises a four-step process''' (Fonseca et al., 2011):<br>
This tool is used at macro level and the disaggregated costs are assumed to be known and aggregated for different types of selected interventions (Tandon and Pizarro, 2006).
==Key documents=Downloads===* Water and Sanitation Tool [http://www.undp.org/content/undp/en/home/librarypage/poverty-reduction/mdg_strategies/mdg_needs_assessmenttools/mdg_needs_assessmenttools.html download]* Water and Sanitation Needs Assessment Model: [http://mci.ei.columbia.edu/files/2013/01/WATSAN-User-Guide.pdf USER GUIDE]
===Key documents=== * Fonseca, C., Dubé, A. and Verhoeven, J., 2011. [http://www.washcostircwash.infoorg/pageresources/1473 cost-based-decision-support-tools-water-and-sanitation Cost-based decision support tools for water and sanitation]. (WASHCost working paper 4). The Hague, The Netherlands: IRC International Water and Sanitation Centre.
* Tandon, P. and Pizarro, G., 2006. Water and Sanitation Needs Assessment Tool for use in assessing national needs to achieve the MDGs. New York, NY, USA: UN Millennium Project, United Nations Development Programme (UNDP)
* Wiemers, A., 2005. [http://content.undp.org/go/cms-service/stream/asset/;jsessionid=aIHA9xSEGS69?asset_id=2548671 Water and Sanitation Needs Assessment Model user guide]. (MDG Needs Assessment Tools). New York, NY, USA: UN Millennium Project, United Nations Development Programme (UNDP)
