The Otago Regional Council yesterday said there had been no signs of environmental damage or wildlife threatened by the spill.
Deputy harbourmaster Pete Dryden said yesterday was the third and likely final day of the clean up at the Port Chalmers wharf where the unattended 18m, 60-tonne vessel sank on Tuesday.
However, the work, involving mechanical skimmers on loan to the council from Maritime New Zealand’s pollution response unit, was tide dependent, Mr Dryden said.
"We’ll continue to monitor the area for the next few days and assess whether there’s been any impacts," he said.
Mr Dryden said he understood the owner had been making plans with a salvor to raise the boat.
The council would monitor the salvage operation as well, Mr Dryden said.
The contaminated water being removed was being stored on shore.
It would be treated and disposed of in due course, he said.
