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Volume 3: Investigative approach for VIAP

Vapor Intrusion Graphic
Environment, Great Lakes, and Energy

Volume 3: Investigative approach for VIAP

Thank you for taking part in the External Review of Investigation Approach for Volatilization to the Indoor Air Pathway (VIAP). It is being released as a draft document and part of the new Guidance Document for the Volatilization to Indoor Air Pathway. The review and comment period for this document ended on September 15, 2025.

Please email Nick Swiger at SwigerN@Michigan.gov with any questions, comments, concerns, or technical challenges.