Contaminated Site Clean-Up Information (CLU-IN): Internet Seminar Audio Archives

This training will provide information on fate and transport of PFAS in the environment using a hypothetical AFFF release. It builds on the earlier topics covered in the PFAS 101 training. Resources and further details for the topics included in this training are available in the ITRC PFAS-1 guidance document.

Representative PFAS fate and transport pathways/processes will be illustrated, highlighting those that are unique to PFAS and different from other common contaminants. Available methods/approaches of field sampling, laboratory analysis, and data evaluation to characterize these fate and transport pathways/processes will be discussed. Data gaps due to limited available sampling/analysis and data evaluation methods will also be discussed.

The scenario of a hypothetical AFFF release site was chosen based on commonality with typical known environmental releases to present an illustrative framework for regulators and other environmental practitioners on the range of PFAS topics that may be applicable from discovery to closure. This training will be crafted for an audience with some basic understanding of PFAS and that has likely already attended the PFAS 101 training and the ITRC PFAS Beyond the Basics: Fate and Transport, Site Characterization, and Source ID training.

This training will be a site-based, application-oriented training that is built around a specific site narrative. We aim to connect the previous subject-oriented training courses to what practitioners need to think about at a site.

Learning Objectives:Understand the interrelationships between current ITRC PFAS knowledge topics in the context of a hypothetical scenario.Understand representative fate and transport processes at a typical AFFF release site; particular focus will be given to PFAS-specific considerationsUnderstand currently available methods/approaches of field sampling, laboratory analysis, and data evaluation for PFAS site characterization, as well as limitations of these methods/approaches To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/PFAS-fate-transport_032626/

RODs [Records of Decision] and More at Federal Facilities is a two-hour webinar course that will provide an overview of how early and interim actions, adaptive management, RODs, Explanations of Significant Differences (ESDs), ROD Amendments, removal actions and Five-Year Reviews are used at Federal Facilities. By taking this course, participants will achieve the following objectives:Understand how removal actions, sampling and analysis plans, and decision documents are used at Federal Facilities;Learn what the critical sections of a decision document are and resources to support writing a decision document;Identify how different types of decision documents can be used as part of an overall cleanup strategy; and,Learn the process for changing remedies after a ROD is issued and how Five-Year Reviews can impact decision documents.The instructional methodology for this course includes lecture, group discussions, case studies, and quizzes. The target audience for this course is federal, state, and tribal representatives who work on Federal Facility cleanups. Ideally, students should have a basic understanding of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) process. This course is part of the Federal Facilities Academy training program. Please consider registering for other Federal Facility Academy courses and obtain a certificate upon completion of the entire Federal Facility Academy series (12 courses total). To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/FFAcademy2_032526/

ITRC's Vapor Intrusion Mitigation training is a series of eight (8) modules, presented over two sessions. If you took the ITRC VIM series previously, the content has stayed the same, but the new course directs people to the Vapor Intrusion (VI) Toolkit resources published in January 2026 by ITRC.

The Vapor Intrusion Mitigation training series provides an overview of VIM and presents information from the 2026 ITRC VI Toolkit (which includes fact sheets, technology information sheets, and checklists).
Session 1:Introduction & Overview of Vapor Intrusion Mitigation Training TeamConceptual Site Models for Vapor Intrusion MitigationCommunity Engagement During Vapor Intrusion MitigationRapid Response & Ventilation for Vapor Intrusion MitigationRemediation & Institutional Controls
Session 2:Active Mitigation ApproachesPassive Mitigation ApproachesSystem Verification, OM&M, Curtailment and Shutdown

When certain contaminants or hazardous substances are released into the soil or groundwater, they may volatilize into soil vapor. VI occurs when these vapors migrate up into overlying buildings and contaminate indoor air. The ITRC VI Toolkit combines the previous ITRC VI-related guidance documents (VI 2007, PVI 2014, VIM-1 2020), along with updates, into one comprehensive resource toolkit (including fact sheets, technology information sheets and checklists) published in January 2026.

After the Vapor Intrusion Mitigation series, you should understand:How to locate and utilize the relevant document, fact sheets, technology information sheets, and checklistsThe importance of a VI mitigation conceptual site modelHow community engagement for VI mitigation differs from other environmental mattersWhen to implement rapid response for VI and applicable methodologies The differences between remediation, mitigation, and institutional controlsAvailable technologies for active and passive mitigation, and design considerations for various approachesHow/when/why different mitigation technologies are appropriateHow to verify mitigation system success, address underperformance, and develop a plan for curtailment of a mitigation system and shutdown
We encourage you to use the ITRC VI Toolkit and these training modules to learn about VI mitigation and how you can apply these best practices to improve decision-making at your sites. For regulators and other government agency staff, this understanding of VI mitigation can be incorporated into your own programs.

While the training makes every effort to keep the information accessible to a wide audience, it is assumed that the participants will have some basic technical understanding of chemistry, environmental sciences, and risk assessment. As with other emerging contaminants, our understanding of VI mitigation continues to advance. This training provides the participants with information on areas where the science is evolving and where uncertainty persists.
To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/VIM-1_031726/

This ITRC training will provide information on the current understanding of PFAS and biosolids, focusing on land application. It builds on the earlier topics covered in the PFAS 101 training.

This training will provide information on potential sources of PFAS in biosolids, the implications of PFAS associated with land-applied biosolids, including leaching and associated risks, and a conceptual site model. It will also cover the nature and extent of PFAS, field and laboratory considerations when assessing land application sites, factors controlling PFAS mobility, PFAS treatment options for biosolids, and PFAS uptake by plants and animals in these settings, along with approaches to modeling that uptake.

Resources and further details for the topics included in this training are available in the ITRC PFAS-1 guidance document, specifically in Sections 1.7, 2, 4, 5, 8, 10, 12, and 17.3, as well as in the Regulatory Programs Table.
Key topics will include: Understanding the Sources and Types of PFASConsiderations for Evaluating Nature & Extent of PFAS Contamination at Land Application Sites Evaluating Fate and Transport of PFAS in the Environment from Land-Applied BiosolidsEvaluating and Modeling Risk from PFAS in Agricultural Settings Evaluating Treatment and Management Options for PFAS in Biosolids To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/PFAS-landapp_022626/

Military Munitions Policy Webinar is a two-hour webinar course that provides an overview of the Department of Defense (DoD) Military Munitions Response Program (MMRP), munitions policies, and how the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) is applied to munitions sites. By taking this course, participants will achieve the following objectives:Learn about DoD MMRP;Understand the CERCLA process as applied to a munitions site;Understand munitions policies; and,Explore EPA Munitions Frequently Asked Questions (FAQs).The instructional methodology for this course includes lecture, case studies, and quizzes. The target audience for this course are federal, state, and tribal representatives who work on Federal Facility cleanups. Ideally, students should have a basic understanding of munitions and the CERCLA process. This course is part of the Federal Facilities Academy training program. Please consider registering for other Federal Facility Academy courses and obtain a certificate upon completion of the entire Federal Facility Academy series (12 courses total). To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/FFAcademy3_022526/