The Environmental Protection Authority's (EPA) director north, Gary Davey, said Clippers Anchorage, the operator of the Soldiers Point Marina, was issued an official caution after a site inspection on December 5.

"The caution related to a non-compliance with conditions of the Environment Protection Licence . . . issued to Clippers Anchorage Pty Ltd, in particular, not having the appropriate pollution control measures in place for the type of work being carried out onsite at the time of the inspection," he said.

"At the time of the inspection the operator was working on a large vessel such that spilt materials would enter waters; that is, there was a risk of water pollution."

No fine was issued.

"An official caution was issued. However, this is a formal regulatory tool and is taken into account if any future regulatory action is required," he said.

"Clippers Anchorage was instructed to ensure there are appropriate systems and controls in place to prevent future licence breaches and/or pollution of waters."

An EPA officer was sent to conduct the inspection after a community member complained.

In the last 12 months the EPA has inspected the property five times.

"EPA officers conduct site inspections on an as-needs basis to ensure our licence holders continue to comply with the conditions of their Environment Protection Licences," Mr Davey said.

The public can report pollution to the Environment Line on 131 555.