75 a) Access to clean drinking water, to hygiene and sanitation Concerning hygiene and sanitation, the Government undertook to carry out: • The development of sources and the rehabilitation of drinking water supply networks, • The reinforcement of the existing drainage programmes and their extension to the national level, • The promotion of community management of water supplies, • The training and sensitization of the populations on hygienic techniques and local sanitation. b) Sanitation 1. Inventory of waste management Waste and sanitation management in Burundi is faced with strong challenges in terms of collection and treatment of urban waste as well as the evacuation and treatment of sewage. The treatment of household waste and other solid waste and sanitation is only available in the Capital, Bujumbura. The Bujumbura Municipal Technical Services (SETEMU) have put in place a system of the weekly collection of waste by trucks. The volume of household waste in the City of Bujumbura is estimated at 137,085m3 per annum and is expected to exceed 210,000m3 by the year 2015. The collection of solid industrial waste is not well organized in Bujumbura. The manufacturing industries have the possibility of collecting and burning their waste on their own land, or of collecting and transporting this waste to the public dumpsite or to an open dumpsite with their vehicles. The average annual production of industrial waste in Bujumbura represents about 64,170 m3. There are four sewage networks which were constructed on different dates. The networks of the city centre and that of Ngagara date back to 1959 whereas that of Mutanga was constructed in the 1970s. The new network was completed in July 2000, likewise the development of the present purification station which serves the city’s new zones. Apart from this new network the others have all fallen into disrepair and need to be rehabilitated for them to be able to collect and sanitize waste water properly. The purification station was constructed 10 years ago but it remains under utilized. The quantity of water produced in the entire city per year is estimated at about 75 million rn3 but the capacity to collect this water by the current sewage network is said to be only 11 million m3 per year. Out of this