Eng. Thilina Rathnayaka

Water Supply Engineer · Editor, MyPlumbingPal

Civil engineer with a BSc from the University of Moratuwa (2016) and an MSc in Water Resource Management and Engineering in progress (University of Moratuwa, 2024–2026). Ten-plus years on water supply and infrastructure projects under the Asian Development Bank, World Bank, UNDP, and JICA — including distribution-network design, hydraulic modelling, non-revenue-water analysis, and field-level leak detection. Runs MyPlumbingPal to combine engineering rigour with experienced-plumber community knowledge for homeowners.

Credentials

  • MSc in Water Resource Management and Engineering, University of Moratuwa (in progress, 2024–2026)
  • BSc in Civil Engineering, University of Moratuwa (2011–2016)
  • Google Data Analytics Professional Certificate, Coursera (2023)

Professional experience (water sector)

  • Water Supply Engineer, Ceywater Consultants (Oct 2024–present) — distribution network design, hydraulic sizing, BOQ and tender documents, claim analysis.
  • Senior Water Supply Engineer, Water Supply and Sanitation Improvement Project (World Bank, 2023–2024) — technical assistance for treatment-plant design, tendering, and project-data management across seven districts.
  • Assistant to ADB Consultant, Non-Revenue Water Study on the Greater Colombo Water and Wastewater Management Improvement Investment Program (2022–2023).
  • ADB technical-assistance consultant, COVID-19 WASH+H program (2024) and climate-resilience / GHG accounting specialist work in the water sector (2023).
  • Engineer (JICA), Rural Infrastructure Development Project (2021–2022).
  • Engineer (UNDP), Climate Resilient Integrated Water Management Project — rural water-supply planning in Kurunegala and Puttalam (2019–2021).
  • Site Engineer, Sooriyaara Rural Water Supply Scheme (World Bank, 2017–2019) — leak detection and reconnection of an old pipe network into a new distribution system.

Publications

  • Fernando, L.S.D. & Rathnayaka, P.A.T.P. (2023). NRW Study Carried Out on the Greater Colombo Water and Wastewater Management Improvement Investment Program. International Water Conference, NWS&DB Research Symposium, Sri Lanka.

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