SA Aboriginal nuclear protest intensifies

Aboriginal groups have stepped up their campaign against a plan for a nuclear waste dump in South Australia, saying it threatens their culture.

A royal commission last month found that SA could earn billions of dollars if it stored large amounts of the world's high-level nuclear waste.

But Arabunna elder Kevin Buzzacott says his people remain traumatised from atomic weapons testing in the 1950s and don't want any more nuclear projects forced on them.

"We have long memories. We remember the atomic weapons tests at Maralinga and Emu Fields and the ongoing denial around the lost lives and health impacts for Aboriginal people," he said.

"We won't become the world's nuclear waste dump."

Adnyamathanha woman Enice Marsh said a nuclear waste facility could risk contaminating bore water.

"Groundwater is about survival. We don't want to be faced with another huge risk like this," she said.

Commissioner Kevin Scarce earlier said the proposal should be scrapped if the community didn't support it and was accepting responses until Friday.