Contaminated Site Clean-Up Information (CLU-IN): Internet Seminar Audio Archives – Details, episodes & analysis

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

Contaminated Site Clean-Up Information (CLU-IN)

Frequency: 1 episode/8d. Total Eps: 17

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/.

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http://www.clu-in.org/conf/itrc/PT-1_120425/
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http://www.clu-in.org/conf/itrc/CECBio_112025/
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http://www.clu-in.org/conf/tio/VTF-PFAS_092425/
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Audio for "ITRC: Pump & Treat Optimization," Dec 4, 2025

Thursday, December 4, 2025 • Duration

ITRC's Pump & Treat (P&T) Optimization training aims to summarize existing information and best practices while also developing a systemic and adaptive optimization framework specifically for P&T well-network design and management. P&T systems have been one of the most commonly used methods for hydraulic containment and treatment of contaminated groundwater at sites with large groundwater plumes. This method cleans up groundwater contaminated with dissolved chemicals by pumping groundwater from wells to an above-ground treatment system that removes the contaminants. Optimization of P&T remedies is important for maintaining contaminant removal effectiveness throughout the operation lifetime and managing the system toward an exit strategy. A strategy for routine optimization of P&T remedies is key for maintaining the contaminant removal efficiency of these systems. The primary audience for this training is environmental project decision-makers, which may include federal, state, tribal, and various local agency employees; contractors to these agencies; and potentially liable parties and their engineers and consultants as well as involved stakeholders. Generally, those involved in designing, building and operating, and optimizing pump & treat systems would benefit.The goal of the training is to provide a roadmap for optimizing a P&T system and refining the remedial strategy or shifting toward another remedial approach. Pump & Treat optimization should be systematic and data-based, and the training and document aim to provide tools and direction to assist in this rigorous process.Key TakeawaysUnderstanding the P&T project lifecycle: evaluation, optimization, and transition, as well as considerations for sustainability, resiliency, and regulatory and stakeholder entities.P&T optimization should incorporate adaptive site management. P&T systems are influenced by a diverse collection of outside factors, which should be considered throughout the entire optimization process.Transition and termination should both be considered during the optimization process.Remedial objectives dictate evaluation and optimization efforts for P&T systems..Prior to attending the training class, participants are encouraged to view the associated ITRC Pump & Treat guidance document. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/PT-1_120425/

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Audio for " ITRC Biological Contaminants of Emerging Concern (BioCEC) Overview," Nov 20, 2025

Thursday, November 20, 2025 • Duration

The ITRC Biological Contaminant of Emerging Concern Guidance (published November 2025) is a tool to educate state regulators on processes and resources available to address emerging biological health risks in the environment. This training will provide an overview of the components of the guidance — process guide, conceptual exposure models, key variables for assessment, analytical methods for characterization, and a monitoring program inventory. A Biological Contaminant of Emerging Concern (BioCEC) is defined as "a microbial pathogenic agent that may pose newly identified risks to humans through the environment and found in a vector, water, soil, waste, or air." "New identified risks" are informed by novel pathogens (hazard), their expanded prevalence (fate/transport), and/or new transmission pathways (exposure). Novel and emerging biological contaminants are an area of great importance to the states as demonstrated by the notable challenges public health agencies have faced in recent decades when waste streams are diverted or insufficiently managed. A major challenge in public health is managing and reducing the risk associated with the transmission of harmful microorganisms (pathogens) and their resulting infectious diseases. Anthropogenic impacts on environmental systems can create niches for pathogens to survive and transport pathways for them to spread and cause disease outbreak. The ITRC BioCEC guidance (published November 2025) brings attention to the nexus of environmental and public health investigations and highlights available resources and practices to monitor and manage an emerging environmental pathogen. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/CECBio_112025/

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Audio for "Sediment Cap Chemical Isolation Training," Nov 18, 2025

Tuesday, November 18, 2025 • Duration

In 2023, ITRC published the Sediment Cap Chemical Isolation Guidance to supplement the 2014 Contaminated Sediments Remediation Guidance with the goal of improving consistency in sediment cap performance outcomes. Sediment capping is a commonly selected remediation approach and numerous designs have been completed. Previous cap designs have been evaluated in multiple ways, and these varying approaches have led to some differences in selection of chemical design criteria, construction tolerance specifications, and monitoring/maintenance objectives for sites with similar characteristics and contaminants, leading to different expectations for long-term performance and reliability. The ITRC Sediment Cap Chemical Isolation Guidance provides a framework for the design, construction, and long-term monitoring of the chemical isolation function of sediment caps. The framework consists of an iterative design process informed by site-specific data that balances achievement of chemical design criteria, physical design constraints, constructability and permitting requirements. In addition, the guidance summarizes key construction considerations and presents a recommended approach for monitoring and evaluating long-term chemical isolation performance. The recommended framework presented in the Sediment Cap Chemical Isolation Guidance is illustrated below. The Sediment Cap Chemical Isolation Training will cover several key elements of the recommended framework, including: A capping overview that summarizes objectives of capping, role of the chemical isolation layer, and generic cap types and compositions. A discussion of performance objectives and design concepts that includes the selection of chemical isolation performance targets criteria and development of design criteria while considering the site setting and conceptual site model elements. An overview of chemical isolation layer modeling tools and discussion of their applicability to support chemical isolation design, important model input parameters, and the impact of uncertainty and sensitivity of modeling results. A summary of chemical isolation construction considerations, including an overview of available construction methods and tolerances and quality assurance and quality control measures. A discussion of cap performance monitoring and maintenance objectives and approaches that include developing monitoring objectives to assess chemical isolation performance and methods for guiding long-term maintenance decisions. We encourage participants to review the ITRC Sediment Cap Chemical Isolation Guidance (SD-1) before and after the training to become familiar with the topics and recommendations discussed during the training. This training is intended for all environmental professionals working in the field of sediment capping projects, including regulators and other government agency staff, consultants, project stakeholders, and industry. To view this archive online or download the slides associated with this seminar, please visit

Audio for "FRTR Presents...Advancing Remediation: Lessons Learned and Innovative Approaches at Federal Facilities," Nov 17, 2025

Monday, November 17, 2025 • Duration

The Fall 2025 FRTR Meeting will offer a unique opportunity for federal cleanup program managers and other remediation community representatives to:Identify and discuss priority cleanup issues,Share lessons learned, andForm collaborative working groups to pursue subjects of mutual interest. This virtual session will feature two presentations from DOE National Laboratories:Pacific Northwest National Laboratory (PNNL): Leveraging Advanced Geophysics and Machine Learning to Support Soil and Groundwater Remediation at the Hanford SiteSavannah River National Laboratory (SRNL): Bioremediation of Chlorinated Volatile Organic Compounds: DOE Experiences and Lessons Learned To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/FRTRPresents10_111725/

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Audio for "ITRC: Microplastics," Nov 13, 2025

Thursday, November 13, 2025 • Duration

In response to one of the biggest emerging environmental concerns, ITRC formed the Microplastics Team in 2021 to develop the Microplastics Guidance Document. Plastics have become pervasive in modern life and are now used in a wide range of commercial and industrial applications. Microplastics may result from the degradation and fragmentation of larger plastics, or they may be intentionally produced for specific applications and products. Regardless of their origin, microplastics are now ubiquitous in our environment. Because of their small size and pervasiveness in the environment, microplastics, along with any other contaminants which are adhered to the microplastics, may be inadvertently consumed by humans and other organisms. The online ITRC Guidance Document is geared toward an audience with reasonable level of scientific understanding, but not microplastic-specific knowledge. The guidance provides a user with information on microplastics and the state of the applied science without having to go to the scientific literature. The target audience for the guidance and this training course includes state regulators and environmental consultants, as well as community and tribal stakeholders. The guidance and this associated training course uses a conceptual site model to navigate microplastics in the environment and explore the following general areas:An introduction to microplastics, their sources, and worldwide distributionThe pathways through which microplastics can enter and travel in the environment and their distribution in various media (water, soil, sediment, air, and biota) A current look at the most common techniques and best practices for sampling and analyzing microplasticsPotential human health and ecological risks associated with microplastics in the environmentAn overview of existing regulations related to microplastics and macroplastics at the state, federal, and international levelsExamples of prevention and mitigation strategies and best management practices to reduce microplastics from entering the environment and the emerging technologies to abate, treat, and remediate microplastics once they exist in the environment Identification of data gaps and the need for further researchSeveral case studies illustrating a range of current microplastics-related topicsPrior to attending the training class, participants are encouraged to view the associated ITRC Microplastics Guidance Document. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/Microplastics_111325/

Audio for "ITRC: Reuse of Solid Mining Waste," Oct 28, 2025

Tuesday, October 28, 2025 • Duration

Solid mining waste represents a significant quantity of waste material in the United States and around the world. Solid mining waste has a range of physical and chemical properties that make it both potentially valuable and potentially hazardous to human health and the environment. From a commercial perspective, mining removes most of the primary minerals of interest; however, waste materials can still contain valuable minerals and other materials that can be recovered. The different types of mining sites and potential wastes for reuse provide a significant challenge but also an opportunity for innovation. Improvements in extraction and mineral processing technologies have occurred over time making it possible to recover minerals present in low concentrations. Interest in trace metals and rare earth elements (REEs) has increased, especially with the drive towards renewable energy sources increasing demand for key minerals required for solar panels and batteries. The reuse of solid mining waste can consist of reprocessing and repurposing the waste for resource recovery or a new application or product. This reuse serves as a solution to two significant needs:a domestic supply of minerals and materials for sustainable development and national defense purposesthe reclamation and remediation of land to reduce risks to human and environmental health The ITRC Reuse of Solid Mining Waste training and guidance document is geared towards state regulators and environmental consultants, mining and manufacturing stakeholders, community and tribal stakeholders, and other who have an interest in the potential reuse of solid mining waste. The guidance and this associated training course includes:Mining wastes introductionConsiderations for reusing mining waste: waste characterization, economic and market considerations, life cycle and risk assessment, regulatory considerations, & stakeholder considerationsPotential applications for the reuse of solid mining waste: examples of construction, environmental, and industrial reusesReview of technologies used in mineral beneficiation and processing Additionally, the guidance includes several case studies illustrating a range of current mining waste reuse scenarios. Prior to attending the training class, participants are encouraged to view the associated ITRC Reuse of Solid Mining Waste document. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/MiningWaste_102825/

Audio for "ITRC: Introduction to Hydrocarbons," Oct 23, 2025

Thursday, October 23, 2025 • Duration

Petroleum is a complex mixture of many compounds. Regulatory and technical guidance documents commonly focus on the hydrocarbon components of that mixture, or perceived risks that they present. However, focusing on a specific area of concern often causes practitioners to overlook other aspects of a release. For example, concerns related to exposure to total petroleum hydrocarbons (TPH) risks may be overlooked while pursuing concerns related to light non-aqueous phase liquid (LNAPL) recovery or petroleum vapor intrusion (PVI). This class is designed to provide a basic overview of hydrocarbon behavior in the subsurface and how to scientifically assess concerns arising from the release of petroleum products into the environment. It will highlight key issues that help identify and manage TPH, LNAPL, and PVI risks together. Key concepts will include: Fundamentals of petroleum hydrocarbonsPetroleum chemistryHow TPH, LNAPL, and PVI are relatedBuilding an integrated conceptual site model (CSM) What is a CSM…what is its purpose?When is a CSM complete?Identifying and managing the risks from petroleum hydrocarbonsDefining LNAPL risks based on acute, saturation, composition, or aesthetic concernsEmphasize the importance of biodegradation in risk management decision makingHow to select remedial goals and remedies that align with your goals This course is based upon three separate Guidance Documents developed by ITRC that address the course content in detail:Light Non-Aqueous Phase Liquid (LNAPL), LNAPL Site Management: LCSM Evolution, Decision Process, and Remedial Technologies (LNAPL-3) Petroleum Vapor Intrusion (PVI), Fundamentals of Screening, Investigation, and Management (PVI-1) Total Petroleum Hydrocarbon (TPH), TPH Risk Evaluation at Petroleum-Contaminated Sites (TPHRisk-1) To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/Hydrocarbons_102325/

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Audio for "M2S2: Military Munitions Response Program (MMRP) Remedial Design," Oct 21, 2025

Tuesday, October 21, 2025 • Duration

This webinar will discuss remedial designs and their applicability to projects under the Military Munitions Response Program (MMRP). Topics covered will include the intent of remedial designs and the types of projects for which they are best suited. We will also discuss scoping the remedial design, preparing the MR-QAPP for the remedial design, and finally describe some case study examples. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/m2s2fy26-1_102125/

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Audio for "ITRC: PFAS Chemistry Explained," Oct 9, 2025

Thursday, October 9, 2025 • Duration

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_100925/

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Audio for "ITRC: Overview of the Tire-Derived Chemicals 6PPD & 6PPD-quinone," Oct 7, 2025

Tuesday, October 7, 2025 • Duration

In October 2024, ITRC released the 6PPD & 6PPD-quinone Guidance Document to provide environmental professionals and communities with information about the current science and regulatory framework of 6PPD and 6PPD-quinone (6PPD-q). 6PPD-q is a contaminant of emerging concern and is a transformation product of the tire anti-degradant (6PPD), an antiozonant used in tires. Join us for this ITRC training course to get a basic overview of the science and policy measures surrounding the Tire Anti-Degradants 6PPD and 6PPD-q. Attendees will gain insight into the current state of knowledge on topics such as: background and use of 6PPD in tires, toxicity in aquatic species and humans; occurrence, fate, and transport; measuring, mapping, and sampling; mitigation measures; and policy, regulations, and laws. Currently, 6PPD is used in all tires and can contaminate stormwater and surface water anywhere tires are used. 6PPD-q was identified as a chemical fatal to coho salmon in 2020. Since that time, it has been documented as acutely toxic to multiple trout species found throughout the United States. 6PPD and 6PPD-q have been found in waterways, aquatic organisms, soils, air, and humans. This training will introduce you to the ITRC 6PPD & 6PPD-quinone Guidance Document which provides more technical detail than can be covered in this training course To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/6PPD-Q_100725/

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Contaminated Site Clean-Up Information (CLU-IN): Internet Seminar Audio Archives – Details, episodes & analysis

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Contaminated Site Clean-Up Information (CLU-IN): Internet Seminar Audio Archives – Details, episodes & analysis

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