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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 begins on August 25, 2025, and ends at 5:00 p.m. on September 15, 2025. All comments should be provided on the Guidance Review Form and emailed to EGLE-RRD@Michigan.gov. Comments not provided on the form will not be considered during the review process. Comments provided should be specific, suggest new or revised text, and provide additional references, if applicable. Grammar and writing-style comments are not needed.

Please email Nick Swiger at SwigerN@Michigan.gov with any questions, comments, concerns, or technical challenges when accessing or commenting on these documents.