Phase 1 of this project commenced in April 2016 with the preparation works for the decommissioning, demolition and decontamination (DDD) such as building material survey, asbestos investigation, preliminary environmental site investigation and environmental impact assessment (EIA). The EIA report has been endorsed by Environmental Protection Bureau (DSPA). This phase was completed in August 2016.
Phase 2 of this project involved the preparation of tender documents, tendering, tender evaluation and contract signing for engaging an experienced and competent main contractor through the selection of invited qualified contractors in this area of expertise for the demolition of buildings, tank farms, off-site pipelines and the stack. The main demolition contractor was confirmed in October 2016 and the preparation for the main demolition work commenced in January 2017 while awaiting the necessary documentation for the license and all related permits for the work to be processed by various government departments.
This preparation for the main demolition work comprising of removal of hazardous materials such as asbestos containing materials, chemicals and fuel oil were completed by May, the dismantling and removal of the Plant equipment & facilities within the buildings were also completed.
The 1st cut of the 101-meter high chimney was successfully carried out on 6 September 2017. A 132 meters in height and weighing 600 tons crawler crane was used for demolishing the chimney. We have adopted a top-down demolition approach. Steel tubes were flame-cut and lifted, and concrete shafts will be wire-cut and lifted. The stack demolition works were successfully completed on 28 December 2017.
With the work license approved and granted, it is planned to complete all the DDD works by the third quarter of 2018.