In the sewerage sector, Baku wastewater network serves 72% population of the city, but only 50% of the water is treated. 90% of the treated water is biologically processed and only 10% is mechanically processed. Wastewater treatment plants are available in 16 cities and regions; most of them are partially or completely useless. In most cases, the quality of water supplied to the population does not meet the required standards. The state works with donor communities to take the necessary measures to address these problems. The Azerbaijani government has adopted a program on the construction of water supply and sewage systems in more than 60 small towns (regional centers) in the country. The state has already started to implement more than 20 such projects. At the same time, local water supply projects are being implemented.
