PORT Macquarie-Hastings Council has shut down the Hastings Valley Motocross Track.
Naturally occurring asbestos has been found present in the vicinity in serpentine rock.
The Hastings Motorcycle Club's 250 members, 130 riders and committee are all eagerly awaiting results from tests so they can again have access to their track.
President of the organisation Stewart Steel although frustrated with the latest closure is working closely with council to get a result.
"Whilst the naturally occurring asbestos issue is yet another set back in what has been a frustrating year for all our members, council is working toward a management plan that sees us back racing at the start of next years season," he said.
"We have been tested for everything but measles and chickenpox, and look forward to a clean bill of health for our complex so we can all get back to our racing."
Recent soil testing confirmed the presence of the substance was naturally occuring rather than the material being introduced into the site. An excerpt from the report conducted by JBS Environment on behalf of NSW EPA and NSW Roads and Maritime Services recommended initial steps to combat the situation but also advised of the closure of the grounds until further testing is complete.