The National Water Supply and Drainage Board (NWS&DB) is the leading semi-governmental institution responsible for providing water supply and sewerage facilities to the people of Sri Lanka. Currently, the Board has provided over 3 million service connections across both domestic and commercial categories. The National Water Supply and Drainage Board is a highly reputable organization that employs a large number of professionals.
Investigation Officer – National Water Board Job Vacancies 2026
Available Vacancies:Â
Applications are invited for the following job vacancies at the National Water Supply and Drainage Board.
- Investigation Officer
Organization: National Water Supply and Drainage Board
| National Water Board Job Vacancies 2026 – English Advertisement | View |
| Download English Advertisement | Download |
| Download English Application | Download |
| Closing Date | 2026-11-16 |
| Source | Sunday Observer (2026-11-01) |
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Frequently Asked Questions
The National Water Supply and Drainage Board (NWSDB) is the principal government agency in Sri Lanka responsible for the provision of safe drinking water and sanitation services. Established by an Act of Parliament in 1975, it manages hundreds of water supply schemes across the country.