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Used Water​

Used Water Landing Page  


Singapore is 100 per cent served by modern sanitation today. Used water is collected through a network of sewers that leads to the water reclamation plants. Currently, there are four water reclamation plants serving a population of over 5 million. 

Each year, about 595 million cubic metres (m3) of used water, equivalent to 238,000 Olympic-size swimming pools, is treated to international standards stipulated by the U.S Environmental Protection Agency and World Health Organisation.

Volume of Used Water Treated

Frequently Asked Questions

Download FAQs for more information on Used Water [PDF].


Deep Tunnel Sewerage System

Source and Network

Sewer Rehabilitation

Registration of CCTV Contractors

Building Plan Submission

Submission Procedures

Legislation and Requirements

Connect with Us

Interactive Map (Construction Projects)

Used Water and COVID-19

Trade Effluent

Grease Traps

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