ITRC

Comprehensive Vapor Intrusion Training Scheduled For Sept. 8 and Sept. 22, 2026

Posted on by Coreen Fallat

The Interstate Technology Regulatory Council (ITRC) will offer online training on Understanding Vapor Intrusion – Introductory Concepts & Fundamentals on Sept. 8 and Sept. 22, 2026.  

The Understanding Vapor Intrusion training series introduces the concepts and fundamentals of vapor intrusion and presents information on the ITRC’s Vapor Intrusion Toolkit, published in January 2026. DNR staff participated in the development of both the technical resources and training. The toolkit is designed for state regulators but also helps environmental consultants and other industry professionals learn about vapor intrusion. 

The training presents the topics below over two, two-hour sessions. 

Session 1 Topics – Sept. 8, 2026 (noon to 2 p.m. CST) 

  • Vapor intrusion and basic science 
  • Common vapor intrusion scenarios 
  • Introduction to data and decisions 
  • Stakeholder communication 

Session 2 Topics – Sept. 22, 2026 (noon to 2 p.m. CST) 

  • Recap: How vapor intrusion is different 
  • How to assess vapor intrusion 
  • Managing vapor intrusion risk 
  • Closure and exit strategies 

Interested individuals are encouraged to register at the CLU-IN Training & Events webpage. The recorded training will also be available on-demand at the CLU-IN Training Archived Webinars webpage. 

Site-specific questions regarding vapor intrusion in Wisconsin should be directed to the assigned DNR Project Manager. General vapor intrusion questions can be directed to the “Vapor Intrusion Contacts” listed on the DNR’s RR Program Staff Contacts website. 

ITRC Comprehensive Vapor Intrusion Mitigation Training Feb. 27 and March 11

Posted on by Coreen Fallat

The Interstate Technology Regulatory Council (ITRC) will offer online vapor intrusion training over two sessions on Feb. 27 and March 11, 2025.  

The training series provides an overview of vapor intrusion mitigation and shares information on using the ITRC’s Vapor Intrusion Mitigation Interactive Directory. The interactive directory includes fact sheets, technology information sheets and checklists. Staff members from the DNR participated in the development of the technical resources and the training.  

The training is a series of eight modules covering the topics listed below and will be presented over two, two-hour sessions: 

Session 1 – Feb. 27, 2025 (noon to 2 p.m. CST)
Topics include: 

  • Introduction and overview of vapor intrusion mitigation training team 
  • Conceptual site models for vapor intrusion mitigation 
  • Public outreach during vapor intrusion mitigation 
  • Rapid response and ventilation for vapor intrusion mitigation 
  • Remediation and institutional controls 

Session 2 – March 11, 2025 (noon to 2 p.m. CST)
Topics include: 

  • Active mitigation approaches 
  • Passive mitigation approaches 
  • System verification, operations, maintenance and monitoring, (OM&M) and exit strategies 

Environmental professionals are encouraged to register at the CLU-IN Vapor Intrusion Mitigation webpage. The training is also available on-demand at the CLU-IN Vapor Intrusion Mitigation archive. 

While the documents are designed to assist state regulators, they also serve to raise awareness with environmental consultants and other industry professionals. 

Site-specific questions regarding vapor intrusion in Wisconsin should be directed to the assigned DNR Project Manager. General vapor intrusion questions can be directed to the appropriate contact listed at RR Program Staff Contacts.