RRD announces the release of a final draft of the Response Activity for the Volatilization to the Indoor Air Pathway guidance document
The Department of Environment, Great Lakes, and Energy (EGLE), Remediation and Redevelopment Division (RRD) has released a final draft Volume 5, Response Activity for the Volatilization to the Indoor Air Pathway (VIAP). The guidance is available as downloadable PDF on RRD’s VIAP webpage. This webpage was developed to promote a consistent and informed approach for EGLE for the VIAP. Table of Contents documents for the Submission of an Active or Passive Mitigation System have also been uploaded as a resource for submitting mitigation systems to EGLE for review. The table of contents documents are considered final and can be downloaded on the website.
Please review, and if you have comments on technical approach, format, or clarity, please fill out the guidance review form posted on the website and submit it to EGLE-RRD@Michigan.gov by 5 p.m. on March 7, 2025.
The Response Activity guidance is one of seven volumes that will make up a Guidebook that will eventually update and replace the May 2013 EGLE Guidance Document for the Vapor Intrusion Pathway. The Guidebook is being developed into different volumes that will cover a specific topic so that when the document is completed, it is easier to identify where the information on a specific topic may be found. The Response Activity guidance document (Volume 5) is a concise process for the mitigation and other response activity to abate the risk from the VIAP. Attachments are included so that users and EGLE staff can be on the same page for information necessary to ensure that the response activity is protective.
Questions regarding this document may be directed to Matt Williams, Volatilization to Indoor Air Specialist, WilliamsM13@Michigan.gov or 517-881-8641, or Nick Swiger, Technical Support Section Manager, at SwigerN@Michigan.gov or 231-429-8926. Toxicology or criteria questions may be directed to Dr. Shane Morrison, Toxicology Volatilization to Indoor Air Specialist, MorrisonS5@Michigan.gov or 517-230-7570.
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