Trade Effluent

Used water from homes, industries, and commercial premises flows through Singapore’s sewer network to our Water Reclamation Plants (WRPs). At the WRPs, the water is thoroughly cleaned and further purified using advanced methods such as membrane filtration and ultraviolet light. This process produces NEWater, a high-quality, weather-resilient source that strengthens Singapore’s water security.

To keep this system running smoothly, businesses must ensure the used water they discharge is suitable for treatment. Following the rules in the Sewerage, Drainage and Coastal Protection Act (SDCPA) and the Trade Effluent Regulations [SD(TE)R] helps protect our water supply and supports the production of NEWater.

For enquiries on discharging trade effluent into Singapore’s public sewerage system, you may contact us via our 24-hour hotline at 1800-2255-782 or email us at [email protected].