The ACT Government should give a speedy go-ahead for Totalcare's proposed new quarry at Williamsdale, Opposition Leader, Jon Stanhope, said today.

Mr Stanhope said the new quarry operations would give Totalcare an opportunity to build its business and save jobs that were potentially under threat.

"The quarry has conditional planning approval from Yarrowlumla Shire, and I understand a feasibility study undertaken by Totalcare also gives it the green light," he said.

"Delays only put more pressure on jobs which might have to go because of the reviews of Totalcare businesses which are underway.

"Already up to 50 jobs have been identified in cuts at Totalcare's vehicle and plant hire business.

"The Government could end a lot of uncertainty by simply giving the go-ahead.

"It would also give a sign of confidence to the Totalcare workforce who, with their unions, have been working with management to make sure the corporatised businesses can stay viable.

"In the main, these are long-term Government employees. They deserve some recognition for their hard work and commitment, and for being prepared to help work through the issues facing Totalcare.