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

Contaminated Site Clean-Up Information (CLU-IN)

Since 1998, The Contaminated Site Clean-Up Information (CLU-IN) website has presented Internet Seminars covering a wide variety of technical topics related to hazardous waste characterization, monitoring, and remediation. For each seminar topic, we have selected the highest-quality offering for placement in our archives. Beginning in May 2005, we began offering these archives via podcast, and this feed contains all seminars archived in the last 6 months. For a complete list of seminars archived since 2000 and videos of selected seminars archived since 2012, please visit http://clu-in.org/live/archive/. Our Rehabilitation Act Notice for reasonable accommodation is available at http://clu-in.org/training/accommodation.cfm. CLU-IN was developed by the U.S. Environmental Protection Agency (EPA) but is intended as a forum for all waste remediation stakeholders. For more information and to view upcoming live offerings, please visit http://clu-in.org/live/. For a complete list of RSS feeds available on CLU-IN, please visit http://clu-in.org/rss/about/.

  1. Jul 15

    Audio for "Phytoremediation in Practice: Design, Performance, and Case Studies for Sustainable Site Cleanup from EPA Phytotechnologies' 2025 Technology Profile," Jul 15, 2026

    This session focuses on applying phytotechnologies to contaminated soil and groundwater, covering key mechanisms and how to align plant species, contaminants (e.g., petroleum hydrocarbons, chlorinated solvents, metals, emerging compounds), and site conditions for effective treatment. Participants will learn practical design considerations, including hydrogeology, climate, and long-term maintenance, along with realistic performance expectations. Lessons learned in monitoring, system performance, and sustainability co-benefits, such as habitat creation and climate resilience, are emphasized to help teams design defensible, effective phytoremediation projects. Concepts are reinforced through real-world case studies demonstrating phytoremediation in practice. Attendees will explore applied case studies illustrating diverse uses of phytotechnology, including hybrid treatment systems for complex groundwater contamination, hydraulic plume control using deep-rooted trees, remediation of petroleum impacts in coastal environments, and large-scale natural treatment systems for nutrient management. These examples highlight both the opportunities and limitations of phytoremediation and provide actionable insights for determining when and how it can be effectively integrated into remediation strategies. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/PhytoinPractice_071526/

  2. Jun 9

    Audio for "ITRC: PFAS Chemistry Explained," Jun 9, 2026

    The Interstate Technology & Regulatory Council (ITRC) is presenting a training on the basics of per- and polyfluoroalkyl substances (PFAS) chemistry. This training supplements the ITRC PFAS Introductory training and ITRC Beyond the Basics Training sessions.  You can find ITRC PFAS training resources online at https://pfas-1.itrcweb.org/pfas-training/. PFAS are an emerging group of contaminants that present unique challenges in many areas including: widespread use and presence in the environment, sampling and analysis, fate and transport, and remedial approaches. This training session will provide PFAS practitioners with an understanding of the unique aspects of PFAS chemistry that guide fate and transport, treatment, regulations, and decision-making on PFAS sites.    Key focus areas of the training include the following:Why are PFAS different from other organic chemicals?How are PFAS defined?How are PFAS manufactured and why does that matter?What are the differences between perfluoroalkyl and polyfluoroalkyl substances?What are the naming conventions used for the different types of PFAS?How are short-chain and long-chain perfluoroalkyl acids (PFAAs) defined?What are precursors and why are they important?What are some of the unique chemical properties of PFAS and why do they matter?Resources and further details included in this training are in the  ITRC Guidance Document (PFAS-1). To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/PFASChem_060926/

  3. Jun 1

    Audio for "SRP Progress in Research Summer 2026 Webinar Series: Session I," Jun 1, 2026

    This Progress in Research webinar series, hosted by the National Institute of Environmental Health Sciences (NIEHS) Superfund Research Program (SRP), showcases research from 6 schools funded by SRP in 2025. These awards were made as part of the P42 grant solicitation RFA-ES-20-014. In the two-part series, awardees will highlight their research projects, accomplishments, and next steps. The newly funded centers, including Oregon State University, University of North Carolina-Chapel Hill, and University of Southern California, are bringing fresh ideas and approaches to tackle complex problems related to hazardous substances. The Oregon State University (OSU) SRP Center is driven to identify polycyclic aromatic hydrocarbons (PAHs) in the environment, to characterize their toxicity, and to specify the environmental concentrations at which they pose no threat to human health. The OSU SRP Center studies the composition of complex PAH mixtures, the changes in composition after remediation and natural attenuation, and the implications of PAH mixtures for human health. The University of North Carolina (UNC)-Chapel Hill SRP Center addresses serious public health challenges faced by communities in North Carolina and across the nation related to inorganic arsenic (iAs). The UNC-Chapel Hill SRP Center is working to identify these factors that would facilitate the development of novel solutions/interventions to reduce the prevalence of iAs-associated diabetes, as well as other diseases associated with iAs exposure. The University of Southern California (USC) SRP Center works to develop problem-based, solution-oriented scientific knowledge and innovative technologies to address the issue of poly- and perfluoroalkyl substances (PFAS) water contamination in Superfund and other sites. The USC SRP Center has the goal of specifically addressing PFAS in relation to their effects on liver disease and addressing urgent concerns regarding water quality and human health in populations affected by PFAS exposures and Superfund sites. To learn about and register for the other session in this webinar series, please see the SRP website. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/SRPPIR26_060126/

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About

Since 1998, The Contaminated Site Clean-Up Information (CLU-IN) website has presented Internet Seminars covering a wide variety of technical topics related to hazardous waste characterization, monitoring, and remediation. For each seminar topic, we have selected the highest-quality offering for placement in our archives. Beginning in May 2005, we began offering these archives via podcast, and this feed contains all seminars archived in the last 6 months. For a complete list of seminars archived since 2000 and videos of selected seminars archived since 2012, please visit http://clu-in.org/live/archive/. Our Rehabilitation Act Notice for reasonable accommodation is available at http://clu-in.org/training/accommodation.cfm. CLU-IN was developed by the U.S. Environmental Protection Agency (EPA) but is intended as a forum for all waste remediation stakeholders. For more information and to view upcoming live offerings, please visit http://clu-in.org/live/. For a complete list of RSS feeds available on CLU-IN, please visit http://clu-in.org/rss/about/.