Water Sector Trust Fund (WaterFund) is the Kenyan State Corporation under the Ministry of Water, Sanitation and Irrigation mandated to assist in financing water, sanitation and water resources management projects in the underserved and marginalised rural and urban areas. In the Water Act, 2016, the mandate of the WaterFund is to provide conditional and unconditional grants to Counties and to assist in financing the development of and management of water services in the marginalised and underserved areas including:Community level initiatives for the sustainable management of water resources, Development of water services in rural areas considered not to be commercially viable for provision of water services by licensees, Development of water services in the under-served poor urban areas & Research activities in the area of water resource management and water services, sewerage and sanitation. WaterFund was first established under the Water Act, 2002, as the Water Services Trust Fund with the mandate to provide financing assistance towards water and sanitation projects to underserved and low-income rural and urban areas