Travel restrictions between Sydney and the rest of NSW lifted at midnight, a move that Wagga MP Joe McGirr warns puts residents of communities like Wagga at greater risk.

Three cases of COVID-19 were announced for the Wagga local government area on Saturday, and another one on Sunday.

There has now been 11 cases in the city in the outbreak, with eight detected in the last week.

A total of 55 cases were revealed by the Murrumbidgee Local Health District at the weekend, with the majority in Albury, however the spread continues across the Riverina.

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The arrival of travellers could add to the burden of the MLHD's growing COVID situation, Mr McGirr said, as he raised concerns that accessing information about exposure sites remains problematic for some of his constituents.

"While vaccination rates in the Wagga electorate are continuing to improve, regional travel will be allowed from [today], so there will be added risks to our community," he said.

"We must be even more rigorous about adhering to social distancing rules.

"We have a substantial outbreak in Albury and a small, but increasing, number of cases in Wagga. Our community needs to be reassured that information is readily available to everyone when they need it."

Confirmed cases were also revealed for the communities of Berrigan, Greater Hume, Murray River and Federation council areas.

The Leeton community in particular is urged to come forward for testing if they are at all symptomatic, after multiple positive detections at the town's water treatment plant.

Residents remain relatively in the dark about their potential exposure compared to the experience of other outbreaks, with just a handful of exposure sites - all around Albury - listed by NSW Health in recent days.

Service NSW app users were to begin receiving push notifications on Friday if they have been at the same venue as a positive case.

Mr McGirr welcomed the addition of exposure site warnings to the app, but said "we need to keep sharing this information as widely as possible with the community."

"I am worried it is now harder for some people to access information that they may need about possible exposure sites," he said.

"Throughout the pandemic, people have been able to access information on potential exposure sites online, on social media and through traditional media.

"Publication in the traditional media has been particularly important for people who don't use smart phones or the internet."

Pop-up clinics will be deployed to Albury, Blighty, Conargo, Deniliquin, Henty, Junee, Leeton, Tumbarumba, Tumut, Ashmont, Wanganella and Young this week.

For testing locations go to mlhd.health.nsw.gov.au, or call the Murrumbidgee COVID-19 Hotline 1800 831 099.

The MLHD was contacted for further comment.

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