About Us


National Water Supply and Drainage Board

National Water Supply and Drainage Board (NWSDB) is the government institution responsible for the safe drinking water facilities and sewerage facilities of the entire country. NWSDB is governed by a Board of Directors and operates under the purview of the Ministry of Water Supply and Drainage (MWSD).

The NWSDB is presently operating 312 Water Supply Schemes which cover 39% of the total population with pipe borne Water Supply, 12% of the population is served with hand pump tube wells. We hope to increase the coverage with pipe borne water to 45.7% by 2015 so that the United Nations Millennium Development Goal of 85% safe drinking water coverage can be achieved by that year. The NWSDB is also in charge of the sewerage systems in Colombo & suburbs, Hantane, Koggala, Hikkaduwa, Kataragama and in few housing schemes.

In accordance with the Board Act, several major Urban Water Supply Schemes operated by Local Authorities were taken over by the NWSDB to provide more coverage and improved service. Consumer metering & billing commenced in 1982. Rural Water Supply & Sanitation programmes including deep well programmes are also being implemented by the NWSDB.

Refer to the online web sites of NWSDB and MWSD for further details.


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