Member for Farrer Sussan Ley announced last week Riverina Cancer Care would be building the state-of-the-art radiation therapy centre at the Griffith Medical Specialist Centre.

The announcement comes off the back of years of campaigning from local cancer support groups.

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Griffith Can Assist president Olga Forner said she was "ecstatic" when she heard the news.

"I was so excited ... it's very much needed in our community and it has been for a long time," Mrs Forner said.

Once constructed, the centre will mean Griffith-based cancer sufferers will no longer need to make the four hour round trip to Wagga to receive radiotherapy treatment.

"We've seen mothers with small children, elderly people and all sorts be disadvantaged and have to leave their family behind while they have to travel to Wagga for radiotherapy treatment," Mrs Forner said.

"The best support system you can have is your own family and friends, and patients in Griffith will have that now."

According to Riverina Cancer Care, the centre will be state of the art and bulk-billable, which Mrs Forner said is a big plus to already good news.

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"Having this state of the art facility in our town, and having the option to have it bulk-billed, means there is no reason why any cancer patients shouldn't be able to access the appropriate treatments," she said.

Not having to help pay for patients' travel and accommodation to Wagga will also free up costs for the Can Assist charity.

Mrs Forner said these saved funds will then be used to assist patients with other requirements.

Margaret Moore from the Griffith Breast Cancer Support Group described the news as "absolutely amazing".

"We have waited so long for this to happen," Mrs Moore said. "I've spoken to quite a few people and they are over the moon."

"Our next thing we've got to look at is organising some sort of accommodation for the outlying people when they come in for treatment ... that will hopefully be a community effort."

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Cancer Council volunteer Grant Hearn said the centre would be not only a huge positive to Griffith, but to the Riverina as a whole.

"The announcement was certainly one of the best things ever ... it was overwhelming," Mr Hearn said.

"A lot of people are looking at this as a boost to Griffith, but it's going to be a boost to the whole Riverina."

"It's going to increase capacity across the region which means there will be more access to the life saving treatment into the future."