Projek Skim Bekalan Air Triang

Previous slide
Next slide

Project Information

Triang, Negeri Sembilan

Client / Owner

Syarikat Air Negeri Sembilan Sdn Bhd (SAINS)


SMHB Sdn Bhd

Main Contractor

Casavest (M) Sdn Bhd


Asia Baru Construction Sdn Bhd

Date of Commencement

19th May 2011

Date of Completion

31st August 2014

Pakej 6B – Construction and Commissioning of Residuals Treatment Plant, Pipelaying and Associated Works at New Ngoi Ngoi Treatment Works Phase 1

The New Ngoi-Ngoi Water Treatment Works, Phase 1 of nominal treated water output capacity of 150 Mld is part of the Triang Water Supply Scheme. Construction for various works components of the treatment works was divided into three (3) contract packages, i.e. Contract 6A, 6B & 6C. The major earthwork for forming of site platform for various works components within the site are to be carried out under Contract 6A.

The Works under this Contract 6B was for Construction and Commissioning of Residuals Treatment Plant, Pipelaying and Associated Works, which, when completed, will enable treatment of sludge/residuals generated by the 150 Mld water treatment plant. Syarikat Air Negeri Sembilan Sdn Bhd (SAINS) awarded the Contact 6B to Casavest (M) Sdn Bhd, which in-turn has sub-contracted the physical works to Asia Baru Construction Sdn Bhd. This include all civil, structural, M&E Works and all associated works.

Briefly, the scope of works comprised the following major components:-

Residuals/sludge treatment system and buildings

  • Residual balancing tank
  • Residual settling tanks (4 nos.)
  • Residual storage tank
  • Pump house and decanter room
  • Residual thickening tank
  • Residual storage yard
  • Emergency plant residual lagoon and ancillary works
  • Residual landfill site
  • All residual treatment system including transfer pumping system, polymer dosing system, stirrers, centrifuge decanter, control system, mechanical and electrical works.

Pipelaying works for 

  • Raw water outlet portal and manifold pipework
  • 1200mm diameter raw water pipeline
  • 1100mm and 800mm diameter treated water pipelines
  • Pipejacking works crossing main road junction (Jalan Kelawang)

Testing and commissioning of all the works components.