Update from PUB DTSS2 T-09

​The Deep Tunnel Sewerage System (DTSS) is an efficient way for Singapore’s used water management. DTSS uses deep tunnels to convey used water entirely by gravity to three centralised treatment plants strategically located at coastal areas. The treated used water is then reclaimed and further purified into NEWater, with excess effluent discharged to the sea in an environmentally responsible manner.

Below is an image of the ​Automated Deformation Monitoring System installed to monitor the ground settlement along Ayer Rajah Expressway during tunnelling works.