Greywater recycling systems supply non-potable water for flushing of water closets/urinals, for cooling tower make-up water and for certain allowable uses in general washing and irrigation. This technical guide is provided to guide building owners & Qualified Persons on the design, installation, testing, operation and maintenance of greywater recycling systems. It provides the minimum standards for the design, installation and maintenance of such systems.

The ABC Waters Design Guidelines provide reference to developers and industry professionals on how to implement environmentally sustainable green features or ABC Waters design features in their developments.

In the latest revision to the Code of Practice on Surface Water Drainage, PUB added a new clause, which required developers/owners to manage their peak runoff by implementing on-site detention measures to hold back or slow down runoff, before discharging it to the public drainage system. These on-site detention measures will complement PUB’s ongoing drainage improvement works to provide a higher level of protectio​​n against floo​​d risks in our catchments. To provide guidance to QPs on the design of detention tan​ks to manage peak runoff, PUB has developed a set of technical guidelines.

This handbook is designed to assist developers, architects and professional engineers, licensed plumbers, government departments and statutory boards in their application for water supply. It provides general information on water supply matters. For general enquiries on water supply matters, please e-mail to PUB_One@pub.gov.sg or call PUB 24-hour Call Centre at 1800-2255-782.

This handbook explains the concepts behind the Source-Pathway-Receptor approach in drainage management. It also highlights innovative “Source” and “Receptor” measures that developments can implement to reduce peak flows, while creating aesthetic value and benefits from these measures.

The implementation of effective Earth Control Measures (ECM) requries the efforts of the developers, professionals and contractors at various stages of the project development from tendering stage to construction stage. Some of the essential references for these industry stakeholders are detailed below.