Major excavation works on the Poortown Road outside St John's are being carried out by the Department of Infrastructure - before planning permission's been granted.
It's understood the site - an open field next to the quarry owned by the DoI - will be used to deposit silt dredged from Peel marina.
On Monday night German Commissioners met with Infrastructure Minister Phil Gawne, who confirmed government had powers under the Public Health Act to carry out the work.
However, the department is required to give 21 days public notice of its intentions before anything can be done on the site.
German Commissioners say they've been reassured the deparment intends to comply with the act.
A public meeting will be called for local residents to give their feedback as soon as the notice is published.
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