Issues & Trends

Issues And Trends Webinar: Investigation Of Vapor Intrusion Along The Utility Conduit Pathway

Posted on by Coreen Fallat
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The Remediation and Redevelopment (RR) Program’s next webinar in the Issues & Trends series will take place on Nov. 7, 2024.

Understanding vapor intrusion pathways at contaminated sites is an important aspect of protecting human health when investigating discharges to the environment that include volatile compounds. The steps to investigate the utility conduit pathway of vapor intrusion, which may include sanitary and storm sewers, sumps and building plumbing, is the topic of an upcoming webinar presented by the DNR.

Investigation of Vapor Intrusion along the Utility Conduit Pathway
Nov. 7, 2024
10 – 11:30 a.m.
Register to attend by Zoom.

The webinar will cover important information about vapor intrusion along the conduit pathway. Presenters will summarize the results of a multi-year effort to collect several hundred samples within conduits at approximately 70 sites in Wisconsin. Attendees will learn some of the basic concepts of how contaminant vapors enter and travel through utility conduits, eventually reaching indoor air. The webinar will review options to sample for vapor intrusion including a discussion of the DNR’s approach to conduit sampling during state-funded investigations.

The webinar is part of the RR Program’s Issues & Trends series. This series offers webinars that provide program and rulemaking updates and information on issues related to environmental contamination and cleanup. Past “Issues & Trends” are available to view by visiting our RR Presentations & Training Library.

Issues & Trends Webinar On Oct. 25, 2023: Vapor Intrusion In Wisconsin – 2023 Updates

Posted on by Christine Sieger

The Remediation and Redevelopment (RR) Program’s next webinar in the Issues & Trends series will take place on Wednesday, Oct. 25, 2023, from noon-1 p.m.

The scheduled presentation is titled Vapor Intrusion in Wisconsin – 2023 Updates and will be followed by time for questions.

  • Active Alarms – Overview of long-term stewardship of vapor mitigation systems in Wisconsin
  • Vapor Intrusion Resources for Local Governments – Debut of a new vapor intrusion webpage resource for local governments
  • Technical Updates on Passive Sampling, Sewers, Cracks and other Pathways – Updates and lessons learned on topics including result variability, passive sorbent sampling, conduit VI and other preferential pathways, real-time sampling, investigation at new and renovated buildings in contaminated settings, rapid response mitigation and state funded vapor investigations.

A Zoom web conferencing registration link may be found on the RR Program’s Conferences and Training webpage.

Recordings of previous Issues & Trends webinars may be found in the RR Program’s Training Library.

Issues & Trends Webinar on April 12, 2023: Ready For Reuse Revolving Loan Funds Program

Posted on by Christine Sieger

The Remediation and Redevelopment (RR) Program’s next webinar in the Issues & Trends series will take place on Wednesday, April 12, 2023, from noon-1 p.m.

The scheduled presentation is the Ready for Reuse (RFR) Revolving Loan Funds Program.

The webinar will focus on the variety of ways to use RFR during the post-closure and redevelopment stage, as well as during the cleanup process. A question-and-answer session will follow the presentation.

RFR loans are used for environmental cleanup of hazardous substances or petroleum at brownfields throughout Wisconsin. Learn more about RFR on the RR Program Wisconsin Ready For Reuse webpage.

Interested in learning what funding resources exist for cleaning up brownfields in your community? Watch this short overview on RR Program funding resources [00:04:58].

A Zoom web conferencing registration link may be found on the RR Program’s Conferences and Training webpage.

Recordings of previous Issues & Trends webinars may be found in the RR Program’s Training Library.

Issues & Trends Webinar on Nov. 16, 2022: Passive Air Sampling for Vapor Intrusion

Posted on by Jodie Thistle

The Remediation and Redevelopment (RR) Program shares that the next webinar in the Issues & Trends series will take place on Nov. 16, 2022, from noon-1 p.m.

The scheduled presentation is Passive Air Sampling for Vapor Intrusion.

The webinar will spotlight changes in recommendations for vapor intrusion sampling (e.g., longer duration passive sampling in lieu of evacuated canister sampling for vapor intrusion investigations).

Colder temperatures and the indoor heating season are the preferred conditions for conducting vapor intrusion sampling. In anticipation of increased sampling during the winter months, DNR staff will provide the latest recommendations for sampling methods for soil gas, sanitary sewer and sewer cleanouts, indoor air and sub-slab vapor.

Additional topics addressed during the webinar will include a review of the health risk concerns and randomly timed 8-hr or 24-hr samples, different passive samplers, considerations when selecting appropriate samples and how to evaluate the data.

Environmental consultants working on sites with volatile organic compounds (VOCs), particularly chlorinated solvent sites, are encouraged to attend.

A Zoom web conferencing registration link may be found on the RR Program’s Conferences and Training webpage.

Recordings of previous Issues & Trends webinars may be found in the RR Program’s Training Library.