Control of Asbestos Emissions

To ensure compliance with Chapter NR 447, Wisconsin Administrative Code, the following work practices are required when performing asbestos abatement:

• Adequately wet asbestos containing material (ACM) to prevent visible emissions (VE's). The absence of VE's is not sufficient evidence that the ACM is adequately wet.
• Wetting that would unavoidably damage equipment is not required if the owner/operator supplies the Department sufficient information explaining the situation. When the Department determines that such damage is unavoidable, the contractor shall use a local exhaust ventilation and collection system designed and operated to capture the particulates produced by the stripping and removal of the friable ACM. The system shall exhibit no VE's to the outside air. The contract shall receive written approval shall be received from the Department of Natural Resources before starting the project.
• ACM must remain adequately wet when collected, contained, treated for disposal and transported.
• All ACM must be sealed in leak-tight containers. For materials that will not fit without additional breakage, leak-tight wrapping may be used.

• All asbestos containing waste material shall be deposited as soon as practical at an approved waste disposal site licensed by the Wisconsin Department of Natural Resources under section NR 506.10, Wisconsin Administrative Code. Out-of-state disposal sites shall be operated in conformance with 40 CFR Part 61, Subpart M, section 61.152.

For more information, contact Amy.Walden@Wisconsin.gov, DNR Asbestos Coordinator.

Asbestos Program || Air Management