Euroa Health chief executive Cheree Hunter said a Melbourne resident travelled from the locked-down city to Euroa on the weekend to visit at family member at the GraniteHill aged care facility.

Ms Hunter said other visitors had been attending communal areas against guidelines and she had been forced to place restrictions on individual visitors.

"I ask for your support to help us keep the visiting program going at Euroa Health as it is fair to say last weekend was somewhat disappointing," she said in an online statement.

Nearby in Shepparton, COVID-19 fragments have been found in wastewater for the third time, leading Goulburn Valley Health's chief executive and the Victorian government to renew calls for residents to be tested.

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Matt Sharp said COVID-19 was detected in wastewater samples taken on August 10-11, 13 and 16.

"Anyone from the greater Shepparton area who is unwell with any symptoms of COVID-19, no matter how mild (such as fever, chills, cough, sore throat, runny nose, loss of sense of smell), should be tested immediately and go home," he said.

"People should stay at home until they get the result of their COVID-19 test. Do not go about your normal day-to-day activities such as work or going out in the community.

"Please do the right thing and do not place your family members, friends, colleagues and the broader community at risk."

The matter was addressed by the government in today's statewide press conference with authorities calling on residents with any symptoms to be tested.

It comes as NSW recorded 681 cases of COVID-19 including some in Queanbeyan and Goulburn. The NSW government announced an extension to regional NSW's stay at home orders.

Victoria recorded 57 new cases.

Victorian Premier Daniel Andrews flagged if seeding events occur in southern NSW border restrictions will tighten.

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