VIAP Workshops header

APRIL 10, 2018 - Grand Rapids, MI
APRIL 13, 2018 - Lansing, MI
APRIL 17, 2018 - Ann Arbor, MI
MAY 15, 2018 -Roscommon, MI

The Michigan Department of Environmental Quality (DEQ), Remediation and Redevelopment Division held the Volatilization to Indoor Air Pathway (VIAP) Workshop, the FIRST of a NEW planned series designed to help attendees understand how to investigate the VIAP* at sites regulated under Part 201, Environmental Remediation, and Part 213, Leaking Underground Storage Tanks, of the Natural Resources and Environmental Protection Act, 1994 PA 451, as amended. This workshop was one of a series of differing workshops the DEQ will be offering to help attendees develop a solid foundation for the VIAP.

This training provided a detailed understanding on how to include an investigation as part of a property transaction process to establish what activities may be necessary to meet further due care obligations.  A solid foundation for the VIAP will also aid the regulated community in identifying ways to reduce time and cost effectively investigate and mitigate unacceptable human health risks. The training also covered various sources of data that are available to aid in the design and support of a sampling program. During the workshop, attendees applied the process and techniques to real world case scenarios and worked alongside DEQ staff to learn:

  • Key concepts and fundamentals
  • How and when to apply various screening levels and criteria
  • The main steps associated with investigating the VIAP
  • The collection and use of multiple lines of evidence
  • Information on the United States Department of Agriculture (USDA) soil classification system
  • Mitigation and mitigation strategies



*The VIAP is the pathway describing the inhalation of hazardous substance vapors volatilizing from a vapor source to indoor air.