But another unexpected wastewater find in Geelong's north has prompted a testing push.

The state reached 27 days without a new case on Thursday, having posted no positive results from 12,862 tests.

Health authorities say 28 days with no new cases means the virus has been eliminated from the community, given that period represents two 14-day incubation periods.

The last COVID-19 patient in a Victorian hospital was discharged on Monday, leaving the state without an active case.

Despite this, more virus fragments have been found as part of its wastewater surveillance testing program.

This time in a sample from a treatment plant in the Geelong suburb of Corio, with residents and visitors to the area from Saturday to Tuesday urged to come forward for testing.

IN OTHER NEWS

"We have had few of these positive wastewater results recently and, while we haven't discovered any undiagnosed case of coronavirus, it is possible that there may be an infectious person in this catchment," Acting Chief Health Officer Allen Cheng said.

It comes as the state's hotel quarantine system prepares to restart for international arrivals on December 7.

Premier Daniel Andrews on Thursday all but ruled out home quarantine for returned travellers, going against the interim recommendations of Victoria's inquiry into the state's botched hotel quarantine program.

"I think we're going to have a hotel-based system, but it will look and be different to what it was last time," he said.

Earlier this month the inquiry recommended that Victoria use a combination of home and hotel-based quarantine, potentially including electronic ankle or wrist bracelets to monitor people at home.

The premier said there was no consensus in national cabinet as to how the states should run hotel quarantine programs, and he did not want to run the risk of further border closures.

He also said COVID-19 infected travellers would be kept in separate hotels to other arrivals.

"It's appropriate that it's separate," Mr Andrews said.

"It's different work, it has to be done by different people, and in different circumstances."

He said people who are infected with COVID-19 may need more medical attention.

"Those who are known to have had the disease or got the disease between when they left, and when they got here, that's an entirely different response," he said.

The state's second wave of the virus spread from hotel quarantine, and was responsible for more than 18,000 COVID-19 infections and 750 deaths.

The government has promised the overhauled system will be stress-tested, and staff contacts will be mapped out in case of any infections.

Also on Thursday, Chief Commissioner Shane Patton confirmed Victoria Police would have "significant involvement" in the revamped hotel quarantine program.

"We're doing everything we can to prepare," he told 3AW.

Mr Patton added Victoria Police had a briefing from a NSW colleague about their program, saying "we took a lot away from that".

The NSW border with Victoria has reopened already, while Queensland will reopen its border on December 1.

-AAP