A CFA investigation has found more than 100 people trained in rubble containing asbestos at the Huntly emergency services training facility.

The investigation also found the 1000 cubic metres of industrial waste was delivered to the site with a certificate declaring it asbestos-free.

The rubble was used for urban search and rescue training, to replicate a collapsed building, between 2005 and 2012.

It has since been removed from the site by a licensed contractor after the CFA was made aware of the presence of asbestos earlier this year.

A spokesperson for the CFA said the authority would contact every person they suspected may have trained in the pile.

“The material has been removed and we are getting in touch with around 100 members that may have come used the prop to provide an assurance of their safety and also to answer any questions they may have,” the spokesperson said.

“We moved quickly to test the area, these results have found there is negligible risk to people that have worked or trained in the area.”

The asbestos was found on tiles contained in the industrial waste pile, which mainly consisted of used industrial concrete.

It was delivered to the Huntly site in 2005 with asbestos-free certification, the CFA spokesperson said.

He said the EPA was continuing to investigate how the asbestos-containing material was delivered to Huntly.

The CFA has since completed an audit of the five other training grounds and found the issue is isolated to Huntly.

The EPA issued a clean-up notice to the CFA in July.

EPA North West manager Scott Pigdon said works were continuing at the site to ensure it complied with the clean-up notice.

“EPA’s investigation into the site found the waste had been present for over 10 years and it was not possible to track where it had come from,” he said.

The state government allocated $20 million in its 2016/17 budget to modernise the CFA’s six regional training grounds.

Huntly will receive new training waters systems and has been identified as the site of a future fire investigation unit.

The funding seeks to “resolve” the training gap caused by the closure of Fiskville after that site was found to be contaminated with cancer-causing chemicals. Former CFA bosses knew of the contamination, an inquiry found, but still sent staff to train there.