Council has advised that an area of Windeyer Waste Transfer Station has been temporarily closed after asbestos was discovered among illegally dumped building waste.
The site's Scrap Metal Disposal Area has been taped off and residents are asked to follow directions from signage.
Council has commenced an investigation and the area will remain closed to undertake a thorough site clean-up.
As Council reviews CCTV footage it is asking any witnesses who saw a large amount of building waste being dumped at the Windeyer Waste Transfer Station in the last few weeks to please contact Council on 6378 2850.
Scrap metal and other bulky items should be taken to the Mudgee Waste Facility for disposal.