Contaminated Site Clean-Up Information (CLU-IN)

Federal Contract Opportunities (FedBizOpps) Update for October 5-11

Sun, 11 Oct 2026 04:00:00 GMT

The latest Federal Contract Opportunities update has been posted to the CLU-IN web site. It contains summaries of procurement and contract award notices issued between October 5-11 that pertain to hazardous waste, solid waste, underground storage tank remediation, and other environmental topics.

Seminar: FRTR Fall 2026 General Meeting: Recent Developments in PFAS Remediation Technologies, December 15, 2026

Fri, 9 Oct 2026 11:12:09 GMT

Introduction to the FRTR Fall 2026 Meeting
Understanding per- and polyfluoroalkyl substances (PFAS) toxicity, sampling, behavior in the environment and treatment has required sustained efforts in technology research, development, testing, and evaluation (RDT&E). Together with these efforts, effective technology transfer has been critical to providing remediation practitioners with best available tools and targeted remediation strategies for managing and restoring sites posing unacceptable risks. In recent years, FRTR meeting discussions have included PFAS-related topics such as "Source Differentiation and Risk Assessment"(Fall 2024), "PFAS Characterization Technologies" (Fall 2023), and "Emerging Characterization and Remedial Technologies" (Fall 2018). The pace of PFAS-related RDT&E has only increased since these earlier meetings and the PFAS knowledge base has expanded substantially.

Meeting Objective
The FRTR 2026 Fall Meeting, held in-person and virtually, focuses on advanced remediation technologies for PFAS. It provides an opportunity to share the expanding PFAS knowledge base and highlights progress in the rapidly evolving field of PFAS remediation. Invited speakers provide presentations and panel discussions to share accomplishments and new methodologies in key technical areas and discuss application of recent advances in characterization and remediation of PFAS-impacted sites. The morning session will focus on recent advances in PFAS characterization, fate, and transport. The afternoon session will build on these topics by exploring PFAS numerical modeling, technology transfer, and PFAS destruction technologies.

Technology Innovation News Survey for August 16-31, 2026

Wed, 7 Oct 2026 04:00:00 GMT

The August 16-31, 2026 Technology Innovation News Survey has been posted to the CLU-IN web site. The Survey contains market/commercialization information; reports on demonstrations, feasibility studies and research; and other news relevant to the hazardous waste community interested in technology development.

Courses and Conferences Section Update for October 2, 2026

Fri, 2 Oct 2026 04:00:00 GMT

The CLU-IN Upcoming Courses and Conferences section was updated on October 2, 2026. There is 1 new entry, for a total of 9 upcoming courses and conferences related to hazardous waste remediation:

FRTR Fall 2026 General Meeting on Recent Developments in PFAS Remediation Technologies, Dec 15 , 2026, Washington, DC

Seminar: "ITRC Understanding Vapor Intrusion -Introductory Concepts & Fundamentals - A Two Part Series: Session 2" from September 22, 2026 has been added to the Internet Seminar Archives

Mon, 28 Sep 2026 18:39:00 GMT

The Vapor Intrusion 101 training series provides an overview of vapor intrusion (VI) and presents information from the 2026 ITRC VI Toolkit (which includes fact sheets, technology information sheets, and checklists).

This course introduces participants to the fundamentals of vapor intrusion, the process by which vapor-forming chemicals in contaminated soil or groundwater volatilize and migrate into buildings. The course will discuss sources, pathways, and receptors. It will identify and assess VI risks in various settings (residential, commercial, industrial) and familiarize participants with regulatory frameworks and guidelines (e.g., USEPA, state-specific regulations). The participants will gain working knowledge of how to develop a Conceptual Site Model (CSM), design and implement sampling strategies, establish data quality objectives (DQOs), and conduct data and risk evaluations. It will provide an overview of mitigation strategies, including various closure strategies, land use covenants, and institutional controls.

Session 1 will focus on:

What is Vapor Intrusion
VI Exposure Pathway
VI in Practice - including common CSMs, Scenarios, and Chemicals
Potential Limiting Factors for VI - PVI vs Chlorinated VI, Geology, Hydrogeology, and Building Operating Conditions
How is VI Different & Challenges in Evaluating VI

Session 2 will focus on:

How VI is Different
How to assess VI - CSM, Sample Collection, Data Interpretation, Risk Assessment, and Project Life Cycle
Managing VI Risk at a Site - Mitigation, Remediation, Monitoring
What does Closure look like & Various Exit Strategies

The course will provide connections to the 2026 ITRC VI Toolkit to help the audience understand how to find and use these new resources for VI sites.

Seminar: ITRC Understanding Vapor Intrusion - Introductory Concepts & Fundamentals - A Two Part Series: Session 1, November 17, 2026

Wed, 23 Sep 2026 14:45:19 GMT

What is Vapor Intrusion
VI Exposure Pathway
VI in Practice - including common CSMs, Scenarios, and Chemicals
Potential Limiting Factors for VI - PVI vs Chlorinated VI, Geology, Hydrogeology, and Building Operating Conditions
How is VI Different & Challenges in Evaluating VI

Session 2 will focus on:

How VI is Different
How to assess VI - CSM, Sample Collection, Data Interpretation, Risk Assessment, and Project Life Cycle
Managing VI Risk at a Site - Mitigation, Remediation, Monitoring
What does Closure look like & Various Exit Strategies

The course will provide connections to the 2026 ITRC VI Toolkit to help the audience understand how to find and use these new resources for VI sites.

Seminar: ITRC Understanding Vapor Intrusion -Introductory Concepts & Fundamentals - A Two Part Series: Session 2, December 3, 2026

Wed, 23 Sep 2026 14:45:20 GMT

What is Vapor Intrusion
VI Exposure Pathway
VI in Practice - including common CSMs, Scenarios, and Chemicals
Potential Limiting Factors for VI - PVI vs Chlorinated VI, Geology, Hydrogeology, and Building Operating Conditions
How is VI Different & Challenges in Evaluating VI

Session 2 will focus on:

How VI is Different
How to assess VI - CSM, Sample Collection, Data Interpretation, Risk Assessment, and Project Life Cycle
Managing VI Risk at a Site - Mitigation, Remediation, Monitoring
What does Closure look like & Various Exit Strategies

The course will provide connections to the 2026 ITRC VI Toolkit to help the audience understand how to find and use these new resources for VI sites.

Seminar: "ITRC Understanding Vapor Intrusion - Introductory Concepts & Fundamentals - A Two Part Series: Session 1" from September 8, 2026 has been added to the Internet Seminar Archives

Tue, 15 Sep 2026 02:21:00 GMT

What is Vapor Intrusion
VI Exposure Pathway
VI in Practice - including common CSMs, Scenarios, and Chemicals
Potential Limiting Factors for VI - PVI vs Chlorinated VI, Geology, Hydrogeology, and Building Operating Conditions
How is VI Different & Challenges in Evaluating VI

Session 2 will focus on:

How VI is Different
How to assess VI - CSM, Sample Collection, Data Interpretation, Risk Assessment, and Project Life Cycle
Managing VI Risk at a Site - Mitigation, Remediation, Monitoring
What does Closure look like & Various Exit Strategies

The course will provide connections to the 2026 ITRC VI Toolkit to help the audience understand how to find and use these new resources for VI sites.

Seminar: "ITRC ITRC: Reuse of Solid Mining Waste" from September 3, 2026 has been added to the Internet Seminar Archives

Thu, 10 Sep 2026 20:53:00 GMT

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 purposes
the 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 introduction
Considerations for reusing mining waste: waste characterization, economic and market considerations, life cycle and risk assessment, regulatory considerations, & stakeholder considerations
Potential applications for the reuse of solid mining waste: examples of construction, environmental, and industrial reuses
Review 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.

Seminar: "Federal Facilities Online Academy: Groundwater Policy Overview" from August 26, 2026 has been added to the Internet Seminar Archives

Wed, 2 Sep 2026 18:36:00 GMT

Groundwater Policy and Federal Facilities Overview is a two-hour webinar course that provides an overview of U.S Environmental Protection Agency (EPA) groundwater policies and guidance with emphasis on cleanups at federal facilities. By taking this course, participants will achieve the following objectives:

Identify EPA groundwater policies;
Understand groundwater classification and beneficial use in restoration objectives;
Understand nature and extent considerations from groundwater contaminant plumes;
Explore applicable or relevant and appropriate requirements (ARARs) commonly associated with groundwater remedies;
Identify groundwater considerations for monitored natural attenuation (MNA), institutional controls, and technical impracticability waivers; and,
Discover information on major groundwater policies from other federal agencies, such as Department of Defense (DoD) and Department of Energy (DoE).

The instructional methodology for this course includes lecture 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 the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). 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).

Courses and Conferences Section Update for September 2, 2026

Wed, 2 Sep 2026 04:00:00 GMT

The CLU-IN Upcoming Courses and Conferences section was updated on September 2, 2026. There is 1 new entry, for a total of 9 upcoming courses and conferences related to hazardous waste remediation:

RemTEC & Emerging Contaminants Summit, Apr 13 - 15, 2027, Rosemont, IL

Seminar: "ITRC ITRC's Vapor Intrusion Toolkit Resources – An Orientation" from July 21, 2026 has been added to the Internet Seminar Archives

Mon, 27 Jul 2026 21:45:00 GMT

This orientation will provide a brief overview of vapor intrusion and introduce attendees to the 2026 ITRC Vapor Intrusion (VI) Toolkit and its many resources.

The VI Toolkit includes the Vapor Intrusion Technical and Regulatory Guidance and a suite of fact sheets, technology information sheets, and checklists, all of which are individually available for download and use. Also provided is a series of YouTube Playlists featuring ITRC-produced videos and content from other organizations. Key topic areas addressed in the toolkit include:

Vapor intrusion fundamentals and conceptual site models
Site screening and investigation strategies
Sampling and analysis
Data evaluation and risk assessment
Modeling
Vapor intrusion mitigation
Community engagement

The Toolkit provides a comprehensive overview of vapor intrusion concepts, recommended practices, and decision-making approaches across a wide range of site conditions. The Toolkit replaces, combines, and updates three previous ITRC vapor intrusion guidance documents: Vapor Intrusion Pathway: A Practical Guidance (VI-1, 2007), Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and Management (PVI 1, 2014), and Technical Resources for Vapor Intrusion Mitigation (VIM-1, 2020). It reflects advances in science, policy, and field experience, and is designed to support regulators, practitioners, and stakeholders in conducting consistent and effective vapor intrusion assessments.

The course will provide connections to the 2026 ITRC VI Toolkit to help the audience understand how to find and use these new resources, and upcoming live ITRC training opportunities that will provide more in-depth education concepts provided in the Toolkit.

CLU-IN Spotlight: Treatment Technologies for Mining-Influenced Water

Mon, 20 Jul 2026 22:19:31 GMT

EPA’s Office of Applied Science and Environmental Solutions (OASES) compiled the report, Treatment Technologies for Mining-Influenced Water: Review of Non-Peer-Reviewed Performance Data, to assist EPA’s Office of Land and Emergency Management and remedial project managers in determining what technologies may be appropriate at metal mining CERCLA sites. The full report and Appendix A: Treatability Study Performance Data and Other Key Information, including a searchable tool for case studies, are available.