The study will show there are no adverse environmental or health issues arising from operating the proposed data centre and power station on the Mugga Lane site.

But the probity of the impact study has already been called into question with the chairman of the defunct Health Impact Assessment, with health expert Professor Tony Capon calling the Environmental Impact Statement not as comprehensive as a Health Impact Assessment.

In August, Professor Capon slammed the sacking of the Health Impact Assessment independent panel of which he was chairman.

He said the assessment was not a statutory assessment but it provided a more comprehensive assessment of health impacts using the framework of the World Health Organisation's social determinants of health, and demonstrated ''world best practice''.

Even if the project is given a thumbs up by the Environmental Impact Statement, it is unlikely to go ahead in Tuggeranong.

The Greens and the Liberals went into last month's election with the promise of ''not on that site.''