Under the National Defense Authorization Act for Fiscal Year 2020 (FY20 NDAA), the interim guidance generally describes thermal treatment, landfill and underground injection technologies that may be effective in the destruction or disposal of PFAS and PFAS-containing materials.

As required by the FY20 NDAA, the interim guidance addresses PFAS and PFAS-containing materials including:

Aqueous film-forming foam (for firefighting); Soil and biosolids; Textiles, other than consumer goods, treated with PFAS; Spent filters, membranes, resins, granular carbon, and other waste from water treatment; Landfill leachate containing PFAS; and Solid, liquid, or gas waste streams containing PFAS from facilities manufacturing or using PFAS. The interim guidance is not intended to address destruction and disposal of PFAS-containing consumer products, such as non-stick cookware and water-resistant clothing.

The agency is also providing guidance on testing and monitoring air, effluent, and soil for releases near potential destruction or disposal sites.

Because EPA will accept comments on the Interim Guidance until February 22nd, 2021, we wanted to provide an overview of the guidance that might be useful to tribes in submitting comments and outline what the guidance covers and what is not included. For more information, please see www.epa.gov/pfas. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/pfasdd_012921/

The newly updated Incremental Sampling Methodology (ISM) training is a series of six modules providing an overview of ISM and presenting five sections from the ITRC guidance document (ISM-2, 2020):Module 0: ISM-2 Update IntroductionModule 1: ISM Overview (ISM-2 Update, Section 1) Module 2: Heterogeneity (ISM-2 Update, Section 2)Module 3: Statistics, Data Use Planning, and Data Quality Evaluation (ISM-2 Update, Section 3.2; 3.3; 6)Module 4: Field Sampling Collection (ISM-2 Update, Section 4)Module 5: Lab Preparation (ISM-2 Update, Section 5)Module 6: Risk Assessment (ISM-2 Update, Section 8)After this series, you should understand:Incremental Sampling Methodology (ISM) is a statistically supported technique for assessing the unbiased mean contaminant concentration in soil, sediment, and other solid media which can afford an economy of effort and resources in your How the ISM structured composite sampling and processing protocol reduces data variability and provides for representative samples of specific soil volumes by collecting numerous increments of soil (typically, 30 to 100 increments) that are combined, processed, and subsampled according to specific protocols.The key principles regarding heterogeneous soil sampling errors and how ISM reduces those errors to have more confidence in sampling results.How to use the new ITRC Incremental Sampling Methodology (ISM-2) guidance document to learn the principles and approaches of the methodology to improve representative, reproducible, and defensible data to improve decision-making at your sites.

For regulators and other government agency staff, this improved understanding can hopefully be incorporated into your own programs. ISM is finding increased use in the field, as well as acceptance and endorsement by an increasing number of state and federal regulatory organizations. Proponents have found that the sampling density afforded by collecting many increments, together with the disciplined processing and subsampling of the combined increments, in most cases yields more consistent and reproducible results than those obtained by more traditional discrete sampling approaches.

Prior to attending the training class, participants are encouraged to view the associated ITRC guidance, Incremental Sampling Methodology (ISM-2). Participants interested in ISM background information prior to the ISM-2 training are encouraged to view the ISM-1 training at ITRC Soil Sampling and Decision Making Using Incremental Sampling Methodology 2-Part Training Series. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/ISM2_012621/

Local governments can play a critical role in the cleanup, redevelopment, and reuse of contaminated properties. When contamination complicates property acquisition, reuse, or stewardship, local governments can help transform these properties from liabilities into community assets. However, local governments can be reluctant to play an active part in redevelopment efforts due to feeling overwhelmed on how to start or what to do. Also, concerns about potential CERCLA liability at Superfund sites may discourage local governments from this role.

This session will share Superfund Redevelopment Program tools and best practices and highlight real-world case examples where local governments, worked with EPA to facilitate the cleanup, redevelopment, and reuse of contaminated properties in their communities. This session also will explore how Superfund liability protections and EPA's enforcement policies protect local governments during the acquisition, cleanup, redevelopment, and reuse of Superfund sites. Speakers will address EPA's newest policies directly addressing the Superfund liability concerns of local governments. This session will empower local governments by providing specific strategies and tools for local governments to successfully return these blighted properties back to productive use while minimizing their liability risk, including how to attract and form productive partnerships between local governments and developers. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/OSRE-SRP_012221/

The Society of American Military Engineers (SAME) Denver Post and Philadelphia Post along with the US Environmental Protection Agency (EPA) are hosting a series of webinars based on talks given at recent Design and Construction Issues at Hazardous Waste Sites (DCHWS) Symposiums. The mission of the DCHWS symposiums is to facilitate an interactive engagement between professionals from government and the private sector related to relevant and topical issues affecting applications of engineering and science associated with cleaning up hazardous waste sites. The symposiums also serve as a platform to facilitate the exchange of information, encourage dialogue, share experiences, and build and enhance communication among design and construction professionals. This presentation is a case study of Combe Fill South Landfill Superfund Site listed on the NPL in 1983 with a record of decision (ROD) in 1986, explanation of significant differences (ESD) in 2000 and amended ROD in 2018. HDR and its predecessor company LMS have been working on this site since its NPL listing in 1983. The presentation will highlight:

How advancements in high resolution analytical and geophysical methods over this time period had a bearing on the original conceptual site model (CSM), and how the application of evolving technologies resulted in investigative and design improvements to achieve the site's remedial action objectives (RAOs).

How the appearance of emerging contaminants - namely 1,4-dioxane - took the remediation timeline through a detour and how delineation and ultimate treatment of emerging contaminants, including PFCs, became the most significant component of this site's history.

The data and decision-making process resulting from numerous bench and pilot scale studies for 1,4-dioxane treatment, as well as various innovative and tried-and-true hydrogeologic evaluations in fractured rock.

The use of new design technologies and software (e.g. LiDAR, Autodesk Recap, Autodesk Revit, BIM 360, etc.) to create a 3D model of the existing groundwater treatment facility, evaluate the potential reuse vs new design, and ultimately complete a new treatment facility design To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS13_011321/

The NIEHS Superfund Research Program (SRP) Progress in Research webinar series highlights promising research from SRP Centers awarded grants in 2020. In this session, awardees from North Carolina State University, University of Iowa, and Louisiana State University will describe their research projects, accomplishments, and next steps.

The North Carolina State University SRP Center, "Center for Environmental and Health Effects of PFAS," focuses on per- and polyfluoroalkyl substances (PFAS) which are ubiquitous in the environment and have been associated with health effects such as cancer and thyroid, liver, and immune system toxicity. Despite this, these compounds have not been well-studied. Center scientists are investigating human exposure levels to PFAS in impacted areas, PFAS toxicity and the underlying mechanisms behind reduced thyroid and immune function, the potential for PFAS bioaccumulation, and effective remediation approaches for PFAS contamination.

The University of Iowa SRP (ISRP) Center, "Airborne PCBs: Sources, Exposures, Toxicities, Remediation," explores polychlorinated biphenyls (PCBs) and the health impacts stemming from inhalation of these toxic chemicals. Center scientists focus on neurodevelopmental and metabolic effects, particularly in adolescents, and the relationship to novel PCB exposure pathways in buildings such as schools. They aim to identify the mechanisms behind PCB interference with lipid metabolism, define the specific environments that contribute to inhalation exposure and its importance compared to dietary exposure, and develop cost-effective strategies to remove or reduce emissions.

The Louisiana State University SRP Center, "Environmentally Persistent Free Radicals (EPFRs)," studies an emerging class of contaminants which are produced during thermal treatment of hazardous wastes and have been shown to induce cardiac and pulmonary dysfunction in exposed populations. They are investigating mechanisms of EPFR-induced health impacts, determining how EPFRs form, stabilize, and decay, and demonstrating a link between EPFR exposure and poor respiratory health in children. The research goal is to understand how to attenuate EPFR formation, facilitate EPFR decay, and limit exposure to EPFRs. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/SRPPIR15_111920/

The Fall 2020 Meeting of the Federal Remediation Technologies Roundtable (FRTR) will be held as a webinar session on Thursday, Nov. 18, 2020. As always, FRTR meetings are open to the public.

FRTR's objectives for this meeting are to:

Provide a retrospective on 30 years of interagency collaboration, technology transfer and advocacy by FRTR to advance technology innovation for site remediation.

Highlight current FRTR initiatives in technology transfer and applied innovative technology that are contributing to successful site remediation. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/FRTR-Retro_111820/

The NIEHS Superfund Research Program (SRP) Progress in Research webinar series highlights promising research from SRP Centers awarded grants in 2020. In this session, awardees from Northeastern University and University of Alabama at Birmingham will describe their research projects, accomplishments, and next steps.

The Northeastern University SRP Center, "Puerto Rico Testsite for Exploring Contamination Threats (PROTECT)," conducts research on pregnant mothers in Puerto Rico and the relationship between contaminant exposures in drinking water, socioeconomic factors, and adverse pregnancy outcomes. They study a variety of toxicants such as chlorinated volatile organic compounds, phthalates, metals, pesticides, and polycyclic aromatic hydrocarbons and the mechanisms by which these chemicals can contribute to adverse pregnancy outcomes. Center scientists also investigate how extreme weather events can exacerbate exposures and work to develop methods to reduce exposure risk.

The University of Alabama-Birmingham SRP Center, "Impact of Airborne Heavy Metals on Lung Disease and the Environment," studies airborne heavy metal pollution and its impact on respiratory health in the area surrounding the 35th Avenue Superfund site in downtown Birmingham. This community is predominantly African American and has higher levels of chronic lung diseases compared to neighboring control areas irrespective of smoking, socioeconomic status, or demographics. Center scientists are developing tools to measure toxicants in the field, studying the efficacy of materials for contaminant removal, and working to understand the connections between environmental degradation and lung health. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/SRPPIR14_110920/

The NIEHS Superfund Research Program (SRP) Progress in Research webinar series highlights promising research from SRP Centers awarded grants in 2020. In this session, awardees from University of Kentucky, Oregon State University, and Baylor College of Medicine will describe their research projects, accomplishments, and next steps.

The University of Kentucky SRP Center, "Nutrition and Superfund Chemical Toxicity," explores human health challenges arising from exposure to halogenated organic substances such as polychlorinated biphenyls (PCBs), trichloroethylene, tetrachloroethene, and per- and polyfluoralkyl substances (PFAS). They conduct research on lifestyle changes such as nutrition and exercise and the relationship with pollutant exposure and disease risk. Center scientists also study remediation systems and engineering solutions for toxicant removal. The goal is to develop prevention strategies for diseases associated with chlorinated organic contaminants through a combination of enhanced remediation and healthy lifestyle components.

The Oregon State University SRP Center, "PAHs: New Technologies and Emerging Health Risks," investigates polycyclic aromatic hydrocarbon (PAHs) mixtures before and after remediation. Center scientists work to track PAH movement through the environment, measure PAH exposure in individuals located near contaminated sites, predict the products of PAH transformation during remediation, determine the toxicity of complex PAH mixtures, and link PAH exposure to health outcomes.

The Baylor College of Medicine SRP Center, "PAHs: Ultrasensitive Detection, Early-Life Exposures - Clinical Outcomes (Preterm Births, Chronic Lung Disease, and Neurocognitive Deficits), Prevention and Remediation," works in Harris County, Texas to explore maternal exposure to PAHs and the increased risk of preterm birth. They are investigating the molecular mechanisms behind the increased preterm birth risk after maternal exposure to PAH mixtures. Center scientists are also working to develop methods for detecting PAH-based compounds in air, water, and soil, remediation technologies to treat contaminated sediment, and strategies to prevent and reduce the health burden associated with PAH exposure. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/SRPPIR13_102820/

Given the COVID-19 national health emergency and its affects on corporate/government travel policies as well as local/state health requirements, it has become necessary to hold the conference as a remote webinar based event. With the DCHWS Philadelphia Conference being canceled earlier this year, our fall conference will be co-sponsored by the SAME Philadelphia Post, the SAME Denver Metro Post, and the U.S. Environmental Protection Agency.

Registration for this session closed on October 22. For more information on this session, please visit the sponsor's event website.

Panel 5: Overcoming Remediation Challenges in Urban/High Access Settings

Moderator: Andrew Bullard, CDM Smith

Colorado Smelter: Keeping the Accelerator On During COVID-19, Author: Sabrina Forrest, EPA Region 8Innovative Pulsed Ozone Microdiffusion Sparge Approach for Tetrachloroethylene Remediation at an Arizona State Superfund Site, Author: Kirk Craig, Geosyntec ConsultantsNovel Riverbank Cap for Controlling Petroleum LNAPL Sheen and Dissolved-phase Constituent Discharge, Author: Keith Sheets, Jacobs

Panel 6: Planning for Success: RD/RA Project Management Lessons Learned

Moderator: Kate Garufi, EPA Office of Superfund Remediation and Technology Innovation

The New Normal - Planning for Sediment Project Water Management Considering Climate Change, Author: Cannon Silver, CDM SmithPartnering Success & Lessons Learned at the Former Zephyr Oil Refinery Project Site, Author: Kevin Kowalk, EA Engineering, Science and Technology, Inc., PBCEagle Mine Superfund Site Water Treatment Plant: Challenges and Lessons Learned, Author: David Heinze, Ramboll To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS12_102820/

Given the COVID-19 national health emergency and its affects on corporate/government travel policies as well as local/state health requirements, it has become necessary to hold the conference as a remote webinar based event. With the DCHWS Philadelphia Conference being canceled earlier this year, our fall conference will be co-sponsored by the SAME Philadelphia Post, the SAME Denver Metro Post, and the U.S. Environmental Protection Agency.

Registration for this session closed on October 22. For more information on this session, please visit the sponsor's event website.

Panel 3: Thermal Treatment: Challenges and Lessons Learned

Moderator: Diana Cutt, EPA Region 2

Highly Complex Thermal Conduction Heating Remediation, Author: Lauren Soos, TRS Group, Inc.Challenges Encountered on Heavily Contaminated Thermal NAPL Sites, Author: Steffen Griepke, Cascade ThermalChallenges of Thermal Remediation at Two Waste Oil Superfund Sites, Author: Eva Davis, EPA Office of Research and Development

Panel 4: Using Modern Technology to Improve RD/RA

Moderator: Eric White, PARS Environmental

Drones, LiDAR, and 3D Models: A New Paradigm for Data Visualization and Analysis and the Project Management Benefits for Large Hazardous Waste Remediation Projects , Author: Tim Cushman (YM), RambollInnovative Remediation Solutions and Stakeholder Engagement to Aggressively Remediate LNAPL Plumes, Author: Chuck Whisman, Geosyntec ConsultantsThe Utilization of the ArcGIS Platform for Wildfire Response with Associated Data in Real Time: Reducing Risk, Removing Hazardous Waste, and Assuring a Safe Recovery Environment, Author: Janine Polinko Latham, Weston Solutions, Inc. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS11_102720/