CDL is committed to complying with all applicable EHS legal requirements enforced by local authorities such as the Building and Construction Authority (BCA), National Environment Agency (NEA), Public Utilities Board (PUB), Ministry of Manpower (MOM) and Singapore Civil Defense Force. Through constant monitoring, evaluation, and auditing of our ISO14001 and OHSAS18001 certified EHS management system, CDL actively ensures that all our activities and operations comply with existing regulatory requirements.

Managing Construction Noise

In Singapore, NEA regulates the noise levels from construction sites with a set of permissible noise limits that vary depending on the time of the day and neighbouring premises. To protect nearby residents, we place emphasis on our builders to comply with the construction noise limits at all our construction sites.

To minimise noise-related complaints, our builders are encouraged to put in place an active management programme and to take all necessary action to address and resolve related complaints. As part of our efforts to keep the community informed about construction status, schedules of the progress at each site are communicated to pre-empt the community about upcoming works that may affect them.

Managing Vector Control at Construction Sites

To keep the incidence of vector-borne diseases low in Singapore, the local authorities leverage on vector management systems, complemented by education, enforcement, and continuous research to achieve this goal. Recognising that construction sites, if not well managed, could become environments for mosquito breeding and rodent infestation, CDL works closely with our builders to ensure that effective systems are in place to prevent pests, curb dengue transmission and protect workers and residents around our work sites against dengue fever.

Besides ensuring that our builders schedule and conduct regular housekeeping on site, we require that they maintain comprehensive pest surveillance and control programmes. We also actively engage our contractors and their workers through awareness building and educational talks to ensure effective vector control and minimise incurring fines for vector breeding.

Managing Water Discharge at Construction Sites

The discharge of wastewater into the public sewerage system and open drains, canals and rivers are strictly regulated by the PUB and NEA.

CDL works closely with all our contractors to track the quality of water discharged to public sewerage and drainage systems and to ensure that Total Dissolved Solids (TDS) and Total Suspended Solids (TSS) readings of the discharged water do not exceed the legal limits of 1,000 mg/litre and 50 mg/litre respectively8. At all our construction sites, Earth Control Measures (ECM) and live-monitoring and alert systems are implemented to prevent silt from polluting our waterways. In one of our recently awarded projects, we set a target of less than 40 mg/litre on the TSS reading of the effluent, highlighting our commitment to preventing pollution.

Prompt corrective actions such as lean concreting to prevent soil discharge are implemented if the TSS limits are exceeded. CDL will continue to work with contractors to increase vigilance in the management of water discharge.

8 Allowable limits for trade effluent discharge by NEA.