Document Code: SG-H-CS-38 Full Title: Tan Gee Paw — PUB Chairman, NEWater Architect, and the Engineer Who Secured Singapore's Water Self-Sufficiency Coverage Period: c. 1944–present Level Designation: Level 3 Profile Primary Sources Consulted:
- The Straits Times, coverage of PUB and water policy
- PSD Challenge, profile of Tan Gee Paw
- Asian Scientist, "A Love of Waterways" profile (2015)
- National Archives of Singapore, records
Related Documents:
- SG-H-CS-36 | Lee Ek Tieng — worked together on Singapore River cleanup and water master plan
- SG-H-DPM-01 | Goh Keng Swee — institutional context for Singapore's infrastructure
- SG-A-14 | Building the SAF and National Service — parallel nation-building context
Version Date: 2026-03-20
Section 1: Key Takeaways
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Tan Gee Paw (b. c. 1944) served as Chairman of the Public Utilities Board (PUB) for 16 years (2001–2017) — overseeing the transformation of Singapore's water supply from a vulnerability into a strategic strength through the "Four National Taps" framework.
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Under his leadership, PUB developed NEWater (high-grade reclaimed water) and desalinated seawater as Singapore's third and fourth national taps, supplementing the traditional sources of local catchment water and imported water from Malaysia. The first desalination plant at Tuas opened in 2005. These innovations moved Singapore decisively toward water self-sufficiency — addressing what Lee Kuan Yew had identified as the country's most existential resource vulnerability.
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A civil engineer by training (First Class Honours, B.Eng Civil, University of Malaya, 1967; MSc Systems Engineering, University of Singapore, 1971), Tan built his career in water and drainage infrastructure. He participated in the Singapore River cleanup led by Lee Ek Tieng from 1977 and received a gold medal at the Clean River Commemoration in 1987.
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Before PUB, he served as Principal of Ngee Ann Polytechnic (1989–1995) and Permanent Secretary of the Ministry of the Environment (1995 onwards), giving him a comprehensive background in both education and environmental management.
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He drafted the first water master plan alongside Lee Ek Tieng — laying the strategic groundwork for the water self-sufficiency programme that PUB would later execute.
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Awards: President's Science and Technology Medal (2015), Distinguished Service Order (2010), Meritorious Service Medal (2001), Lifetime Engineering Achievement Award (2015). He received honorary doctorates from the University of Westminster (1993) and Sheffield University (1995).
Section 2: The Record in Brief
Tan Gee Paw joined the Public Works Department's Drainage Department in 1967 after graduating with First Class Honours in civil engineering. His early career was shaped by the practical challenge of managing water in a tropical city-state with no natural aquifers and limited catchment area.
From 1977, he was part of the Singapore River cleanup task force led by Lee Ek Tieng — a decade-long project that transformed Singapore's central waterway. This experience gave him intimate knowledge of the intersection between water management, urban planning, and environmental policy.
His appointment as Principal of Ngee Ann Polytechnic (1989–1995) demonstrated the Singapore system's practice of deploying technically capable administrators across different domains. His subsequent return to the water sector as PS (Environment) and then PUB Chairman represented a homecoming to his core expertise.
The "Four National Taps" strategy executed under his chairmanship — local catchment, imported water, NEWater, and desalination — was Singapore's definitive answer to the water vulnerability that had haunted the nation since independence. The development of NEWater, in particular, was a technological and political achievement: recycled wastewater treated to drinking-water standards initially faced public resistance but was gradually accepted through sustained public education and by demonstrating the technology's safety and reliability.
Section 3: Timeline of Key Events
| Year | Event |
|---|---|
| c. 1944 | Born |
| 1967 | B.Eng (Civil), First Class Honours, University of Malaya; joined PWD Drainage Department |
| 1971 | MSc Systems Engineering, University of Singapore |
| 1977 | Joined Singapore River cleanup task force (led by Lee Ek Tieng) |
| 1987 | Gold medal at Clean River Commemoration |
| October 1989 | Appointed Principal, Ngee Ann Polytechnic |
| March 1995 | Appointed Permanent Secretary, Ministry of the Environment |
| 1 April 2001 | Appointed Chairman, PUB |
| 2001 | Meritorious Service Medal |
| 2003 | NEWater launched |
| 2005 | Singapore's first desalination plant at Tuas |
| 2010 | Distinguished Service Order |
| 2015 | President's Science and Technology Medal; Lifetime Engineering Achievement Award |
| 31 March 2017 | Retired as PUB Chairman after 16 years |
Sources and References
- Asian Scientist, "A Love of Waterways: Tan Gee Paw," 2015.
- PSD Challenge, Tan Gee Paw profile.
- The Straits Times, PUB and water policy coverage, various dates.
This document is part of the Singapore Governance Knowledge Corpus.