In addition to this investigation, massive dredging has been going near Kusu Island since Mar 2011. The latest Port Marine Notice has this going on until Oct 2011.
Soil investigation works off Kusu Island (Pulau Tembakul)
From Port Marine Notice No. 126 of 2011 dated 27 Sep 2011
With effect from 29 Sep 11 to 29 Oct 11. 24 hours daily including Sundays and Public Holidays. Pulau Tembakul and its vicinity (see attached chartlet):
Soil investigation works will be carried out by means of borehole drilling using jack-up barges. The jack-up barge, with tug boats in attendance, will have a circular safety working zone of 30 meters radius centered at the barge. Tugboats will be used for shifting the barges from one borehole location to another. The shifting of the barges will be carried out during daylight hours only. A safety boat will be deployed in the vicinity of the working area to warn other craft of the project work. Further enquires relating to the project can be directed to Mr Chua Kim Seng, the project manager at Tel: 9028 3089(email: email@example.com).