The investigation centres on allegations of bullying and harassment.

A WorkSafe spokesman today confirmed the investigation was continuing.

"WorkSafe inquiries are continuing," he said in reply to inquiries about the state of the probe.

There is no indication on when the investigation will be completed, but it is understood that it is unlikely that charges will be laid due to the specific circumstances of the case.

The death of the council worker happened late last year.

At that time police also investigated the same incident but a Warrnambool police spokesman said no action was being taken.

WorkSafe was contacted at that time but had not initiated an investigation.

In mid February further information was provided to the regulator which sparked inquiries.

It was understood in February that council officers were then in the process of being interviewed.

Some of those employees interviewed no long work at the WCC.

At that time WCC chief executive officer Peter Schneider said the health and well being of staff was paramount to the council.

"Council would always co-operate with WorkSafe on any investigation and is committed to providing any information WorkSafe requires," he said.

Confirmation of the investigation comes after two long-time councillors - Michael Neoh and Peter Hulin - raised issues about a "toxicity" and "serious culture issues" within the council.

Long-time former councillor Peter Hulin spectacularly resigned from the council about the same time, saying he could no longer work with his fellow councillors and an organisation that he said wasn't "open or transparent".

He said there was bullying within the council and "regular reports of toxicity in the workplace".

"That is not acceptable to me," he said.

That was followed by another long-term councillor, Mike Neoh, saying he was prepared to be sacked for speaking out about cultural and communication issues at the council.

In relation to cultural issues, Mayor Tony Herbert said there were "a number" of investigations under way at the council to "weed out the individuals that are acting negatively towards other members of staff".