A Lehigh County company is working to stabilize a pile of zinc that was discovered on Lehigh University's property.

The zinc sits on about 139 acres of a 775-acre piece of land that was donated to the university in Upper Saucon Township.

The Pennsylvania Department of Environmental Protection says there are high levels of arsenic in the pile, but it says there is no threat to the public.

The DEP says Eastern Industries -- the company that's been contracted by Lehigh U.-- missed the original deadline to stabilize the zinc due to complications with the weather..

Now it has until September to have the land graded and seeded.

Company officials say they shouldn't have any problem meeting the new deadline.