The GW2I is a multi-stakeholder platform which is comprised of UN agencies, international organizations, governments, scientists, private sectors, industries and Major groups and stakeholders to provide the foundations (including information, tools and policy mechanisms) for partnerships to initiate comprehensive, effective and sustained programmes addressing wastewater management.

This initiative will be carried out through the creation of demonstration projects for sustainable wastewater reuse. Outreach and mainstreaming will be supported by use of publications and other outreach material. Capacity building and training for public and private sector stakeholders at local, regional and national levels.

The GW2I is a voluntary network of stakeholders with an international Steering Committee and a Secretariat to be provided, hosted and managed by UNEP/GPA. The GW2I operates as a voluntary network of stakeholders with a view to facilitate joint efforts to communicate and address the wastewater challenge and to push the wastewater agenda by sharing, among stakeholders, information, lessons learned and best practices for wastewater management, including sound technologies that do not adversely affect the environment and biodiversity.

AfDB, ADB, DHI-UNEP, FAO, GEF, IAEA, Jacobs U.K. Limited, Swiss Tropical and Public Health Institute, UEMOA, CBD, UNDESA, Prana Sustainable Water Switzerland, UNDP, UNICEF, UNU-INWEH, USEPA, WECF, WHO, Ramsar, IMWI, CUTEC-Institute GmbH, Ecoturismo Y Nuevas Tecnologias, UNIDO, Inter-American Development Bank, UN-Habitat, Fisheries Division Laboratory Antigua, ICLEI Local Governments for Sustainability in Africa, UICN Programme Afrique Centrale et Occidentale, IWA, WaterLex, UNSGAB, BORDA, UNESCO, SUEN Turkey, CBEEX, The Water Network, UoN, Envisager, Jordanian National Forum for Women, Agua Inc. Global Development Group, CENTA, Aquawise Consulting, FED, Water Towers Conservation Network, WBCSD, USDA, ZeroDig (Pty) Ltd, University of Lomé, SEI, UNWater