Mark your calendars to participate in upcoming training hosted by the Wisconsin Department of Natural Resources (DNR)’s Remediation and Redevelopment program. The trainings are hosted as part of the RR Program’s Issues & Trends series which provide updates and information from the RR Program on issues related to environmental contamination and cleanup.
The trainings are offered virtually and registration is required. Anyone involved in the investigation, remediation and mitigation of contaminated sites under Wisconsin Statute (Wis. Stat.) ch. 292 and Wisconsin Administrative (Wis. Admin.) Code chs. NR 700 – 799 is encouraged to attend.
Schedule and Session Details
Vapor Intrusion Topics
March 23, 2026, 11:30 a.m. to 1 p.m.
Register to attend by Zoom.
This session will offer an overview of information available in the Vapor Intrusion Guidance (RR-800) published in January 2026. The publication is a comprehensive resource when working on sites with contaminated vapor that has migrated or has the potential to migrate to current or future buildings. The presenters will highlight how the guidance can help you identify the conditions that may indicate the need for more investigation and the responses and actions that follow discovery of vapor intrusion. The session will also offer information about web-based forms now available to help document building evaluations that can guide you through assessment of vapor related concerns at a building and log inspections of vapor mitigation systems after installation and commissioning.
Using Monitored Natural Attenuation in Cleanup of Contamination
June 24, 2026, 11:30 a.m. to 1 p.m.
Register to attend by Zoom.
The session will highlight the newly published Monitored Natural Attenuation Guidance (RR-0156) and considerations when selecting and using monitoring natural attenuation (MNA) as a remedial option for cleaning up contamination. As part of the session, presenters will highlight the responsibilities of consultants and others and highlight available tools to support informed decision-making that considers the regulatory framework, site investigation components, and lines of evidence. The session will also review the importance of monitoring to verify the effectiveness of the use of MNA.
Deep Dive into Vapor Intrusion: Application of RR-800
July 16, 2026, 11:30 a.m. to 1 p.m.
Register to attend by Zoom.
Presenters will dive deeper into the steps to address a site with vapor intrusion or the potential for vapor intrusion, with a focus on the publication Vapor Intrusion Guidance (RR-800). The presenters will share scenarios to show how to investigate the vapor intrusion pathway and the considerations and actions needed after vapor intrusion is identified.
Conduit Vapor Intrusion: Application of RR-649 and RR-800
Sept. 17, 2026, 11:30 a.m. to 1 p.m.
Register to attend by Zoom.
This session will provide an update on vapor intrusion through conduits. Presenters will go over updates to the publication Guidance for Documenting the Investigation of Human-made Preferential Pathways Including Utility Corridors (RR-649) and relevant portions of the publication Vapor Intrusion Guidance (RR-800). This session will also offer an opportunity for you to ask questions specific to preferential pathways.
More information about the topics is available on our webpage at dnr.wi.gov; search “Vapor Intrusion” or “Natural Attenuation.”
Recordings of previous presentations and trainings are available in the RR Program’s training library at dnr.wi.gov search “Training Library.”
