Tanzania has significant water resources, with an average available water of 2,000 cubic meters per inhabitant per year in 2012, which is expected to reach 1,400 cubic meters in 2025, given the population growth. Despite these resources, access to quality water remains difficult in Tanzania. In 2010, potable water supply rates in Tanzania were 68% in Dar es Salaam, 84% in the 19 major cities, 54% in secondary cities and 57% in rural areas. Less than 20% of the urban population was connected to a sanitation network. Within the framework of the WSDP, the Tanzanian government hopes that 93% of the population will have access to potable water at the end of the programme, (90% in rural areas and 100% in urban areas) and that 30% have access to sanitary facilities by 2025.
The first phase of the plan covers the period from July 2007 to June 2014 and consists of: increased access to water and sanitation in urban areas; increased access to water and sanitation in rural areas; management of natural resources.
Four impacts were identified: increased access to potable water from 78% in 2006 to 86% at the end of 2013; management of 17% in 2006 to 20% in 2013 of greywater in urban areas; management of greywater in rural areas from 38% in 2010 to 44% in 2013, (312,528 households); creation of a National Water Council and another for each of the 38 catchment areas.