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 will address the following:Identification and quantification of risk during progressive phases of design;How to mitigate risk through contract language or added cost;Provide examples of how risk costs are estimated, assigned, and weighted due to probability and impact of risk.How multiple risk components are analyzed and a cost strategy is developed.Provide examples of high risk projects and mitigation as well as low risk projects and mitigation. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS17_071421/

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

Risk Management During the Cost Estimating Process (Jul 14, 2021)

Extreme weather events and wildfires are increasing and impacting hazardous waste sites. The primary goal of cleanups, which is protecting human health and the environment, is undermined. Confronted with these risks, environmental professionals should assess, and design remedies that are sustainable and resilient. Sustainable resilient remediation (SRR) is an optimized solution to cleaning up and reusing a hazardous waste site that limits negative environmental impacts, maximizes social and economic benefits, and creates resilience against increasing threats. The objective of the ITRC Sustainable Resilient Remediation (SRR-1) is to provide resources and tools for regulators, stakeholders, consultants, and responsible parties to help integrate sustainable and resilient practices into remediation projects. This guidance updates the Interstate Technology and Regulatory Council's (ITRC) Technical and Regulatory Guidance: Green and Sustainable Remediation: A Practical Framework (ITRC 2011a) and includes a strong resilience component to address the increasing threat of extreme weather events and wildfires. Recommendations for careful and continuous consideration of the social and economic costs and benefits of a cleanup project are included. Training Objectives Educate participants about available SRR resources and toolsImpart evolution from Green and Sustainable Remediation (GSR) to SRRProvide guidance on practical application and implementation of SRRProvide participants with information necessary to navigate the SRR guidance and tools Training GoalsProvide information and resources for the social and economic dimensions of sustainability, including state-of-the-art social and economic evaluation toolsProvide a framework illustrating how and why sustainability and resilience should be integrated throughout the remedial project life cycleOffer checklists of key sustainable best management practices to address resilience based on specific vulnerabilities at a site, as well as resources for additional informationPresent interactive maps with links to available state and federal resources to quickly find examples and best practices from your state or other states and federal agenciesReference case studies illustrating the application of SRR considerations After the SRR Training, a user will have the tools necessary to understand what SRR is and how it can be used to achieve a sustainable and resilient remediation outcome. This can be accomplished by remediation practitioners applying the principles and practices to a contaminated site and by providing SRR resources to help regulators and stakeholders in the development and review of project documents or submittals. The intended users of this guidance and training course are those individuals responsible for managing contaminated sites. Users of this training and the associated documents will develop an understanding of SRR and its importance in achieving sustainability and resilience for site remediation. Principals, best practices, resources, and trainer insights will help users conduct SRR tailored to the needs of the sites under their care. Recommended Reading: Participants are strongly encouraged to review the ITRC Sustainable Resilient Remediation, (SRR-1) document prior to participating in the training class. Also, because SRR-1 is an expansion and update of the concepts developed in Green and Sustainable Remediation: A Practical Framework, GSR-2, review of this document is recommended but is not a prerequisite. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/SRR_062221/

Sustainable Resilient Remediation (SRR) (Jun 22, 2021)

When certain contaminants or hazardous substances are released into the soil or groundwater, they may volatilize into soil gas. Vapor intrusion (VI) occurs when these vapors migrate up into overlying buildings and contaminate indoor air. ITRC has previously released guidance documents focused on VI, including the "Vapor Intrusion Pathway: A Practical Guidance" (VI-1, 2007) and "Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and Management" (PVI, 2014). However, ITRC has received multiple requests for additional details and training on mitigation strategies for addressing this exposure pathway. The ITRC Vapor Intrusion Mitigation Team (VIMT) created ten fact sheets, 16 technology information sheets, and 4 checklists with the goal of assisting regulators during review of vapor intrusion mitigation systems, and helping contractors understand the essential elements of planning, design, implementation, and operation, maintenance and monitoring (OM&M) of mitigation systems. The Vapor Intrusion Mitigation training is a series of eight (8) modules, presented over two sessions as noted in the graphic below. The Vapor Intrusion Mitigation training series provides an overview of vapor intrusion mitigation and presenting information from the ITRC fact sheets, technology information sheets, and checklists (VIM-1, 2021): Introduction & Overview of Vapor Intrusion Mitigation Training TeamConceptual Site Models for Vapor Intrusion MitigationPublic Outreach During Vapor Intrusion MitigationRapid Response & Ventilation for Vapor Intrusion MitigationActive Mitigation ApproachesPassive Mitigation ApproachesSystem Verification, OM&M, and Exit StrategiesRemediation & Institutional Controls After the Vapor Intrusion Mitigation series, you should understand:How to locate and utilize the VIM-1 fact sheets, technology information sheets, and checklistsThe importance of a VI mitigation conceptual site modelHow public outreach for VI mitigation differs from other environmental mattersWhen to implement rapid response for vapor intrusion 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 discontinuing a mitigation system We encourage you to use the ITRC Vapor Intrusion Mitigation work products (VIM-1) and these training modules to learn about vapor intrusion 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 vapor intrusion 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 vapor intrusion 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_061521/

ITRC Vapor Intrusion Mitigation (VIM-1) (Jun 15, 2021)

The NIEHS Superfund Research Program (SRP) is hosting a Risk e-Learning webinar series focused on SRP-funded data science projects that are enhancing the integration, interoperability, and reuse of data. With these supplements, the SRP encourages data sharing among its grantees to accelerate scientific discoveries, stimulate new collaborations, and increase scientific transparency and rigor. In the second session, SRP-funded researchers will describe efforts to combine and analyze datasets using geospatial platforms. These platforms are being used to visualize patterns of exposures and those factors that may affect these patterns, within a geographical area. This session will also feature a speaker supported by the National Science Foundation, who will discuss HydroShare, an online system for sharing hydrologic data and models. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/SRPDSP2_060321/

Risk e-Learning Webinar Series: Session II - Geospatial Platforms for Analysis and Visualization Across Environmental Data (Jun 3, 2021)

When certain contaminants or hazardous substances are released into the soil or groundwater, they may volatilize into soil gas. Vapor intrusion (VI) occurs when these vapors migrate up into overlying buildings and contaminate indoor air. ITRC has previously released guidance documents focused on VI, including the "Vapor Intrusion Pathway: A Practical Guidance" (VI-1, 2007) and "Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and Management" (PVI, 2014). However, ITRC has received multiple requests for additional details and training on mitigation strategies for addressing this exposure pathway. The ITRC Vapor Intrusion Mitigation Team (VIMT) created ten fact sheets, 16 technology information sheets, and 4 checklists with the goal of assisting regulators during review of vapor intrusion mitigation systems, and helping contractors understand the essential elements of planning, design, implementation, and operation, maintenance and monitoring (OM&M) of mitigation systems. The Vapor Intrusion Mitigation training is a series of eight (8) modules, presented over two sessions as noted in the graphic below. The Vapor Intrusion Mitigation training series provides an overview of vapor intrusion mitigation and presenting information from the ITRC fact sheets, technology information sheets, and checklists (VIM-1, 2021): Introduction & Overview of Vapor Intrusion Mitigation Training TeamConceptual Site Models for Vapor Intrusion MitigationPublic Outreach During Vapor Intrusion MitigationRapid Response & Ventilation for Vapor Intrusion MitigationActive Mitigation ApproachesPassive Mitigation ApproachesSystem Verification, OM&M, and Exit StrategiesRemediation & Institutional Controls After the Vapor Intrusion Mitigation series, you should understand:How to locate and utilize the VIM-1 fact sheets, technology information sheets, and checklistsThe importance of a VI mitigation conceptual site modelHow public outreach for VI mitigation differs from other environmental mattersWhen to implement rapid response for vapor intrusion 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 discontinuing a mitigation system We encourage you to use the ITRC Vapor Intrusion Mitigation work products (VIM-1) and these training modules to learn about vapor intrusion 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 vapor intrusion 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 vapor intrusion 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_060121/

ITRC Vapor Intrusion Mitigation (VIM-1) (Jun 1, 2021)

The Spring 2021 Meeting of the Federal Remediation Technologies Roundtable (FRTR) will be held as two webinar sessions on May 19 and May 26, 2021. This special 30-year anniversary meeting will convene senior leaders from all FRTR member agencies to discuss progress in remediation programs and opportunities for innovative technology applications at complex sites. As always, FRTR meetings are open to the public. FRTR's objectives for this meeting are to: Provide an overview of the grand remediation challenges facing member agencies over the next decade.Discuss specific technology needs across programs.Highlight agency program initiatives to advance technologies that will expedite and improve site cleanup. Session 1: Grand Challenges This session will consist of a virtual panel discussion by senior-level leaders from the FRTR member agencies involved in site remediation programs. The panel discussion will be facilitated by Dan Powell, Chief of the Technology Integration and Information Branch in U.S. EPA's Office of Superfund Remediation and Technology Innovation. Session 2: Advancing New Technologies This session will consist of a virtual panel discussion by senior-level leaders from the FRTR member agencies involved in research and application of new and innovative site characterization and remediation technologies at complex sites. The panel discussion will be facilitated by Kent Glover of the U.S. Air Force Civil Engineer Center. Dr. Glover is the Air Force Subject Matter Expert (SME) for Remediation Systems and the FRTR Steering Committee Chair. The following agencies will be represented at this meeting: U.S. Air Force-Civil Engineer Center (AFCEC)U.S. Army Corps of Engineers (USACE)U.S. Department of Energy (DOE)U.S. Environmental Protection Agency (U.S. EPA)U.S. Geological Survey (USGS)U.S. Navy-Naval Facilities Engineering Systems Command (NAVFAC)U.S. Nuclear Regulatory Commission (U.S. NRC)National Institutes of Health-National Institute of Environmental Health Sciences (NIEHS)Strategic Environmental Research and Development Program (SERDP) and Environmental Security Technology Certification Program (ESTCP) To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/FRTR-Grand2_052621/

FRTR at 30 Years: Grand Challenges and Opportunities for Advancing Remediation Technologies, Session 2 (May 26, 2021)

The Spring 2021 Meeting of the Federal Remediation Technologies Roundtable (FRTR) will be held as two webinar sessions on May 19 and May 26, 2021. This special 30-year anniversary meeting will convene senior leaders from all FRTR member agencies to discuss progress in remediation programs and opportunities for innovative technology applications at complex sites. As always, FRTR meetings are open to the public. FRTR's objectives for this meeting are to: Provide an overview of the grand remediation challenges facing member agencies over the next decade.Discuss specific technology needs across programs.Highlight agency program initiatives to advance technologies that will expedite and improve site cleanup. Session 1: Grand Challenges This session will consist of a virtual panel discussion by senior-level leaders from the FRTR member agencies involved in site remediation programs. The panel discussion will be facilitated by Dan Powell, Chief of the Technology Integration and Information Branch in U.S. EPA's Office of Superfund Remediation and Technology Innovation. Session 2: Advancing New Technologies This session will consist of a virtual panel discussion by senior-level leaders from the FRTR member agencies involved in research and application of new and innovative site characterization and remediation technologies at complex sites. The panel discussion will be facilitated by Kent Glover of the U.S. Air Force Civil Engineer Center. Dr. Glover is the Air Force Subject Matter Expert (SME) for Remediation Systems and the FRTR Steering Committee Chair. The following agencies will be represented at this meeting: U.S. Air Force-Civil Engineer Center (AFCEC)U.S. Army Corps of Engineers (USACE)U.S. Department of Energy (DOE)U.S. Environmental Protection Agency (U.S. EPA)U.S. Geological Survey (USGS)U.S. Navy-Naval Facilities Engineering Systems Command (NAVFAC)U.S. Nuclear Regulatory Commission (U.S. NRC)National Institutes of Health-National Institute of Environmental Health Sciences (NIEHS)Strategic Environmental Research and Development Program (SERDP) and Environmental Security Technology Certification Program (ESTCP) To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/FRTR-Grand1_051921/

FRTR at 30 Years: Grand Challenges and Opportunities for Advancing Remediation Technologies, Session 1 (May 19, 2021)

This seminar will review the essential steps and protocols for the assessment and rehabilitation of active and abandoned mining sites in humid regions with examples drawn from the mid-Atlantic USA. In these environments, appropriate stabilization and closure plans must address direct surface revegetation and erosion control along with predicting and controlling adverse water quality discharges. Important site-specific limitations that must be assessed and planned for include (1) avoiding acid-forming materials, (2) minimizing mine soil compaction, (3) ensuring adequate plant moisture supply, and (4) accounting for slope x aspect effects. Due to the net leaching climate, reclamation practitioners must also predict and manage against emission of acid mine/rock drainage in many instances and/or circumneutral high TDS discharges in others. Specific examples will include reclamation of surface coal mines to hayland/pasture or native forests, stabilization and revegetation of acid-forming coal refuse, and return of mineral sands (Ti and Zr) mines to prime farmland row cropping systems. The seminar will cover recommendations for (a) pre-mine closure overburden and soil testing, (b) mine soil reconstruction, (c) basics of AMD/TDS drainage potential prediction, (d) topsoil and organic matter management, and (e) long term soil fertility and pH management concerns. Complete supporting materials and publications are available at https://landrehab.org/. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/mining-humidregion_051821/

Mining Webinar Series: Assessment and Rehabilitation of Humid Region Mine Sites and Wastes (May 18, 2021)

The NIEHS Superfund Research Program (SRP) is hosting a Risk e-Learning webinar series focused on SRP-funded data science projects that are enhancing the integration, interoperability, and reuse of data. With these supplements, the SRP encourages data sharing among its grantees to accelerate scientific discoveries, stimulate new collaborations, and increase scientific transparency and rigor. The first session will introduce tools, strategies, workflows, and platforms developed by SRP researchers to organize existing data obtained from measuring contaminants in an array of environmental media to facilitate interoperability. These strategies were developed to enable researchers to reuse the data to better characterize and understand contaminants present in the environment. We will also hear about the U.S. Environmental Protection Agency's (U.S. EPA's) CompTox Chemicals Dashboard, a compilation of information from many sites and databases developed to organize chemical data and address data gaps. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/SRPDSP1_051721/

Risk e-Learning Webinar Series: Session I - Data Sharing Tools, Workflows, and Platforms (May 17, 2021)

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 session will include the following presentation: Site Assessment, Design Considerations, and Performance Results from a Innovative Barrier Application at a Large Chlorinated Plume in Texas A large chlorinated solvent plume situated in a cemented sandstone bedrock aquifer contaminated private water wells under a residential neighborhood in Texas. Typical HRSC techniques were not feasible due to the aquifer characteristics. Long-term field data will demonstrate how an innovative CSM assessment and barrier design approach achieved MCLs and prevented further off-site migration. Groundwater extraction from private, off-site wells resulted in a large chlorinated solvent plume that needed to be addressed to prevent further off-site migration. Remedial approaches considered included groundwater pump and treat, enhanced reductive dichlorination (ERD), and an in situ carbon sorption/biotreatment. A colloidal activated carbon (CAC) barrier provided the most cost-effective solution by rapidly preventing off-site migration and preventing biofouling of the downgradient potable wells that may develop from typical ERD in situ remedies. This presentation will focus on several innovative approaches to identify contaminant mass flux and the use of an innovative model to predict remedial performance. Performance monitoring data from over 30 months from multiple monitoring wells shown excellent results from the CAC barrier, with the results meeting the project performance objectives (below MCLs) and preventing further contaminant downgradient migration. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS15-A_051221/

Design and Construction Issues at Hazardous Waste Sites Webinar on Successful Remedial Design, Session 1 (May 12, 2021)

Renewable energy resources are an important part of America's energy security and environmental sustainability. Development of renewable energy resources combats climate change by replacing carbon-intensive energy sources, reducing greenhouse gas emissions while also providing public and private benefits for communities by creating jobs and promoting sustainable investment. Superfund sites can be well suited for renewable energy production, and EPA has tools and resources available to support site reuse. This webinar will highlight a variety of renewable energy projects and discuss technical assistance available to support renewable energy reuse on Superfund sites. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/SRI_050621/

Superfund Redevelopment Program Webinar Series - Optimizing Renewable Energy Reuse on Superfund Sites (May 6, 2021)

The Harmful Cyanobacteria Blooms (HCBs) training reviews key information found in the ITRC Guidance Document, Strategies for Preventing and Managing Harmful Cyanobacterial Blooms. Cyanobacteria are microscopic, photosynthetic organisms that occur naturally in all aquatic systems but most often in freshwater systems. Under certain conditions, cyanobacteria can multiply and become very abundant, discoloring the water throughout a water body or accumulating at the surface. These occurrences are known as blooms. Cyanobacteria may produce potent toxins (cyanotoxins) that pose a threat to human health. They can also harm wildlife and domestic animals, aquatic ecosystems, and local economies by disrupting drinking water systems and source waters, recreational uses, commercial and recreational fishing, and property values. It is likely that continued population growth, land use change, increases in nutrient inputs to our waterways, and the warming climate will favor proliferation of these problematic species. Providing a range of practical approaches to minimize these blooms and their likely societal and wildlife effects is critical to our future vitality, health, and economic prosperity. The Harmful Cyanobacteria Bloom training provides an overview of cyanobacteria and their management, covering five sections from the ITRC guidance document: Introduction to the Cyanobacteria (Section 3)Monitoring (Section 4)Communication and Response Planning (Section 5)Management and Control (Section 6)Nutrient Management (Section 7) After the five-part Strategies for Preventing and Managing Harmful Cyanobacteria Blooms training, you should understand:The basic ecology and physiology of cyanobacteria, and the harmful effects they have on health, the environment, and local economiesCommon approaches to monitoring for cyanobacteria and cyanotoxins, and how to build a monitoring programThe importance of good communication and coordinated response during cyanobacteria blooms, and the elements of a good response planAvailable options for in-lake management and control of cyanobacteria bloomsNutrient management options to reduce the likelihood of cyanobacteria blooms in your water body We encourage you to use the ITRC HCB Resources (HCB-1) and the recorded training to learn about cyanobacteria, monitoring approaches, management of active blooms, and prevention of blooms in the future. For regulators and other government agency staff, these materials present the current state of the science on cyanobacteria and approaches to manage and reduce the occurrence of blooms. We share examples and resources from across the country that can help you develop approaches of your own. 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 biology, lake management, chemistry, and environmental sciences. As with other emerging concerns, our understanding of harmful cyanobacteria blooms continues to advance. These trainings help you build cyanobacteria response plans now and point you to resources that will keep you up to date in the future. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/itrc/hcb-1_042921/

Strategies for Preventing and Managing Harmful Cyanobacteria Blooms (Apr 29, 2021)

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 will review work conducted at Landfill Cell 3 on Closed Sanitary Landfill (CSL) at Fort Meade. During activities to remove some waste soil piles in 2013, test pits uncovered general wastes under a plastic liner and it was realized that Cell 3 was a waste site in the past that, based on old figures and aerial photographs, extended for over 38 acres. A remedial investigation was conducted that summarized the landfill history, delineated the boundary of the cell, and assessed environmental impacts from the cell. This case study begins with discovery and planning the performance-based contract, it includes review of the various phases of site investigations and concludes with the construction of the landfill cover. This work was performed while active soil staging operations occurred on the majority of Cell 3. Critical to success was that Cell 3 was closed in 1976 with a 2-ft soil cover prior to 1988 when MDE altered the requirements for landfill closure. With the numerous entities involved and evolving site conditions, active project team management was required including reducing the scope of the landfill cover 85%, from 38 acres to 6.2 acres to accommodate ongoing soil staging operations on the remainder of the cell. The team carefully applied state regulations that worked best by reusing and recycling available material and incorporating stable, established side slopes into the landfill cover design. One key to the success of this project was an adaptive contract to manage the evolving issues. As different construction projects on Fort Meade required more of the Cell 3 footprint for staging soils, the performance-based contract for the Cell 3 cover had to be modified. The contract allowed for segregation of the different regulator required documents and of the different portions of the field tasks, which allowed for an easier adaptation to these changing site conditions. To view this archive online or download the slides associated with this seminar, please visit http://www.clu-in.org/conf/tio/DCHWS14_042821/

An Environmental Cold Case Detective Story: Discovery and Repair of the Soil Cover on the Cell 3 Landfill (Apr 28, 2021)

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 select seminar topics offered since 2012, we are making complete video recordings available through our archives. This feed contains all video seminars archived in the last 12 months. For a complete list of seminars archived since 2000, please visit http://www.clu-in.org/live/archive/. Our Rehabilitation Act Notice for reasonable accommodation is available at http://www.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://www.clu-in.org/live/. For a complete list of RSS feeds available on CLU-IN, please visit http://www.clu-in.org/rss/about/.

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Contaminated Site Clean-Up Information (CLU-IN): Internet Se...

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