TechDirect, May 1, 2016

U,S. ENVIRONMENTAL PROTECTION AGENCY

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be viewed as individual issues.

TechDirect's purpose is to identify new technical, policy and guidance resources
related to the assessment and remediation of contaminated soil, sediments and
groundwater.

Mention of non-EPA documents or presentations does not constitute a U.S. EPA
endorsement of their contents, only an acknowledgment that they exist and may be
relevant to the TechDirect audience.

> Upcoming Live Internet Seminars

ITRC Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and
Management - May 3, 2015,1:00PM-3:15PM EDT (17:00-19:15 GMT). Chemical
contaminants in soil and groundwater can volatilize into soil gas and migrate through
unsaturated soils of the vadose zone. Vapor intrusion (VI) occurs when these vapors
migrate upward into overlying buildings through cracks and gaps in the building floors,
foundations, and utility conduits, and contaminate indoor air. If present at sufficiently high
concentrations, these vapors may present a threat to the health and safety of building
occupants. Petroleum vapor intrusion (PVI) is a subset of VI and is the process by which
volatile petroleum hydrocarbons (PHCs) released as vapors from light nonaqueous phase
liquids (LNAPL), petroleum-contaminated soils, or petroleum-contaminated groundwater
migrate through the vadose zone and into overlying buildings. The ITRC Technical and
Regulatory Guidance Web-Based Document, Petroleum Vapor Intrusion: Fundamentals of
Screening, Investigation, and Management (PVI-1, 2014) and this associated
Internet-based training provides regulators and practitioners with consensus information
based on empirical data and recent research to support PVI decision making under
different regulatory frameworks. The PVI assessment strategy described in this guidance
document enables confident decision making that protects human health for various types
of petroleum sites and multiple PHC compounds. This guidance provides a
comprehensive methodology for screening, investigating, and managing potential PVI
sites and is intended to promote the efficient use of resources and increase confidence in
decision making when evaluating the potential for vapor intrusion at
petroleum-contaminated sites. By using the ITRC guidance document, the vapor intrusion
pathway can be eliminated from further investigation at many sites where soil or
groundwater is contaminated with petroleum hydrocarbons or where LNAPL is present.
For more information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/iive.

ITRC Integrated DNAPL Site Characterization - May 5, 2016,1:00PM-3:15PM EDT

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(17:00-19:15 GMT). The Integrated DNAPL Site Characterization Team has synthesized
the knowledge about dense nonaqueous phase liquid (DNAPL) site characterization and
remediation acquired over the past several decades, and has integrated that information
into a new document, Integrated DNAPL Site Characterization and Tools Selection (ISC-1,
2015). This guidance is a resource to inform regulators, responsible parties, other
problem holders, consultants, community stakeholders, and other interested parties of the
critical concepts related to characterization approaches and tools for collecting subsurface
data at DNAPL sites. After this associated training, participants will be able to use the
guidance to develop and support an integrated approach to DNAPL site characterization,
including: identify what site conditions must be considered when developing an informative
DNAPL conceptual site model (CSM); define an objectives-based DNAPL characterization
strategy; understand what tools and resources are available to improve the identification,
collection, and evaluation of appropriate site characterization data; and navigate the
DNAPL characterization tools table and select appropriate technologies to fill site-specific
data gaps. For more information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/iive.

NEPA and Mining 101, Parts 1-3 - May 12, 24, and June 8. The course is designed to
provide an overview of mining and NEPA and is geared towards how tribes can participate
in the NEPA process. Part 1 on May 12 will educate participants on the major steps in
mine development, exploration, types of hardrock mining, and mineral processing.
Presenters will provide an engaging look into the world of hardrock mining. Participants will
walk away with a basic understanding of the types of mining and gain a common language
to communicate about mining in their geographic area of interest. Part 2 on May 24 will
explore environmental concerns at mine sites and how issues can be addressed. Specific
topics include types of waste products, surface and groundwater concerns, water
treatment, and potential air issues. Participants will walk away with a basic understanding
of the types of issues that can occur at mine sites and have the ability to pose general
questions of concern during mine proposal evaluations. Part 3 on June 8 will lay out the
regulatory process of mining with an in depth look into NEPA review process and major
permits associated with mine operations. The session will also provide examples of key
opportunities for tribal participation in the development process. Participants will walk
away with an understanding and ability to engage in the NEPA process. Participants are
encouraged to ask questions. For more information and to register, see http://ciu-in.ora/iive.

CERCLA Section 108(b) Proposed Rule for Hard Rock Mining - May 17, 2016,
2:00PM-3:00PM EDT (18:00-19:00 GMT). The Office of Resource Conservation and
Recovery will present a webinar on the development of the proposed regulation for
financial responsibility for certain hard rock mines and mineral processing facilities under
Section 108(b) of the Comprehensive Environmental Response, Compensation, and
Liability Act (CERCLA). EPA previously presented the CERCLA 108(b) proposed rule
framework in a webinar held in September, 2015, available at

https://www.voutube.com/watch?v=xa5Di3Ti6Qc. The upcoming webinar will provide an update on the
Agency's progress in developing the rule, and describe the Agency's current thinking on
the key aspects of the rule described in the framework. Stakeholders and other members
of the public are invited to learn about the CERCLA 108(b) rulemaking and will have the
opportunity to ask questions during the webinar. For more information and to register, see

http://clu-in.org/live.

ITRC Issues and Options in Human Health Risk Assessment - A Resource When
Alternatives to Default Parameters and Scenarios are Proposed - May 19, 2016,
1:00PM-3:15PM EDT (17:00-19:15 GMT).After participating in this ITRC training course,
the learner will be able to apply ITRC's Decision Making at Contaminated Sites: Issues
and Options in Human Health Risk (RISK-3, 2015) document when developing or
reviewing site-specific risk assessments by: identifying common issues encountered when
alternatives to default parameters and scenarios are proposed during the planning, data
evaluation, toxicity, exposure assessment, and risk characterization and providing possible
options for addressing these issues; recognizing the value of proper planning and the role

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of stakeholders in the development and review of risk assessments; and providing
information (that includes links to additional resources and tools) to support decision
making when alternatives to default approaches, scenarios and parameters are proposed.

For more information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/iive.

ITRC Remedy Selection for Contaminated Sediments - June 2, 2016,1:00PM-3:15PM
EDT (17:00-19:15 GMT). ITRC developed the technical and regulatory guidance, Remedy
Selection for Contaminated Sediments (CS-2, 2014), to assist decision-makers in
identifying which contaminated sediment management technology is most favorable based
on an evaluation of site specific physical, sediment, contaminant, and land and waterway
use characteristics. The document provides a remedial selection framework to help
identify favorable technologies, and identifies additional factors (feasibility, cost,
stakeholder concerns, and others) that need to be considered as part of the remedy
selection process. This ITRC training course supports participants with applying the
technical and regulatory guidance as a tool to overcome the remedial challenges posed by
contaminated sediment sites. Participants learn how to: identify site-specific characteristics
and data needed for site decision making, evaluate potential technologies based on site
information, and select the most favorable contaminant management technology for their
site. For more information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/iive.

Archive of SERDP/ESTCP Webinar on Long Term Monitoring Issues at Chlorinated
Solvent Now Available. Two presentations were offered in this April 2016 webinar. Dr.
Ron Falta presented on A Practical Approach for Modeling Matrix Diffusion Effects in
Low Permeability Zones at Chlorinated Solvent Sites. A second presentation on
Methods for Minimization and Management of Variability in Long Term Groundwater
Monitoring Results was given by Poonam Kulkarni and Thomas McHugh. View or

download at https://serdp-estcp.ora/Toois-and-Trainina/webinar-series/04-21-20i6.

> New Documents and Web Resources

Setting the Stage for Leveraging Resources for Brownfields Revitalization (EPA
560-K-16-001). Many communities struggle to find and attract sufficient funding for
brownfields redevelopment projects. It can be difficult for communities to identify how best
to invest limited local resources. Sound initial investments of local funds can open
opportunities for additional public funds and attract the interest and support of outside
investors and lead to additional funding. This guide was developed by EPA to assist
communities in overcoming the challenges of making sound investment decisions to
attract additional resources for community revitalization (April 2016, 40 pages). View or

download at https://www.epa.aov/brownfields/settina-staae-leveraaina-resources-brownfields-revitalization.

Ecotools Case Study: Anaconda Smelter Superfund Site, Anaconda, MT (EPA
542-F-16-001). Contamination from nearly 100 years of copper smelter operations affected
the health and quality of the environment at the Ancaconda Smelter Site. Estimates
indicate that more than a billion gallons of groundwater were contaminated and thousands
of acres of soil were affected by fluvially transported mine wastes and smelter emissions.

The massive 300-square-mile site area and variable, rugged terrain provided major
remedial design challenges. The innovative site evaluation and assessment techniques,
paired with effective remedial processes such as tilling and adding soil amendments, have
helped restore these vital grasslands and ranch areas. The uplands remediation and
ecological revitalization efforts have served to provide key lessons and replicable
assessment techniques for other sites with area-wide contamination (March 2016, 13

pages). View or download at https://clu-in.ora/ecotools/case.cfm.

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Sensor Technology for the 21st Century. This new resource is designed to help sensor
developers locate Small Business Innovation Research (SBIR) and/or Small Business
Technology Transfer (STTR) funding opportunities across federal agencies. The U.S.
Government is a significant driver of sensor innovation: investing in low cost, portable,
easy-to-use technologies to facilitate the collection of real time, reliable measurement

information. View and use at https://www.sbir.aov/sensor-technoioav-for-the-2ist-centurv.

International Workshop on the Regulatory Supervision of Legacy Sites: from
Recognition to Resolution (NRPA 2016:5). In November 2015, the Norwegian Radiation
Protection Authority hosted a workshop on the regulatory supervision of legacy sites.
Participation included a wide range of regulatory authorities, as well as technical and
academic organizations, coming from Australia, Europe, Japan, Russia and the USA,
including the U.S. EPA, U.S. Nuclear Regulatory Commission (NRC) and U.S.

Department of Energy (DOE). The objective of the workshop was to promote the sharing
of experience on practical regulation of a wide range of nuclear and radiation legacies,
including: sites and facilities affected by major accidents and incidents, storage and
disposal sites and facilities for radioactive waste, which were built and operated prior to
there being an appropriate regulatory basis, nuclear technology and development centers
and laboratories that were built and operated prior to there being an appropriate regulatory
basis, uranium mining and milling facilities and dumpsites for Naturally Occurring
Radioactive Material (NORM), and former peaceful nuclear explosion and weapons testing
sites. Based on the presentations and discussion, it was concluded that the
development of a common international framework for legacy management and regulation
would be useful. This should be based firmly on the current international framework, with
additional guidance provided on moving from the general framework to address
site-specific issues. Continued activities to share international experience in this context
were recommended (April 2016, 124 pages). View or download the workshop report at

http ://www. n rpa. no/f iler/7be4a09906. pdf.

Superfund Research Program Research Brief 256: A New Dilution Tool to Facilitate
High-Throughput Assay Techniques. A new tool provides a quick and easy way to dilute
samples for biochemical and biological analyses. The microfluidic dilution generator,
developed by researchers at the University of California, Davis Superfund Research
Program Center, can serve as a simple dilution device in research laboratories,
point-of-care clinical settings, and low-resource environments. For more information, see

http://tools.niehs.nih.gov/srp/researchbriefs/view.cfm7Brief ID=256. TO get monthly Updates On research

advances from the SRP you can subscribe to their Research Brief mailing list at

https://list.nih ¦aov/cai-bin/wa.exe?SUBED1=SRP-BRIEF&A=1.

Technology Innovation News Survey Corner. The Technology Innovation News 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. Recent issues, complete archives, and subscription
information is available at https://ciu-in.ora/products/tins/. The following resources were included in
recent issues:

• OW-5/55R Area In-Situ Geochemical Stabilization Remediation Performance
Evaluation, Former Koppers Wood Treating Plant, Nashua, New Hampshire

• Robust Means for Estimating Black Carbon-Water Sorption Coefficients of Organic
Contaminants in Sediments

• Remediated Sites and Brownfields: Success Stories in Europe

• Analysis of Superfund Site Assessment Program Cooperative Agreements with
States: Benefits of Flexibility during Pre CERCLA Screening

• PubChem Substance and Compound Databases

• Abstract Book: Phytotechnologies for Sustainable Development: 12th International
Conference, 27-30 September 2015, Manhattan, KS

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EUGRIS Corner. New Documents on EUGRIS, the platform for European contaminated
soil and water information. More than 12 resources, events, projects and news items were
added to EUGRIS in April 2016. These can be viewed at http://www.euaris.info/whatsnew.asp. Then
select the appropriate month and year for the updates in which you are interested. The
following resource was posted on EUGRIS:

Identifying Emerging Risks for Environmental Policies (2016). The European
Commission brief discusses some of the tools and approaches that can be used to identify
emerging risk. These include strategic foresight tools, scanning of the internet for
information, citizen science and state of-the-art monitoring technologies. It addresses the
policy implications of these new approaches, with reference to some of the strategies that
are currently employed to search for emerging risks. View or download at

http://ec,europa,eu/environment/intearation/research/newsalert/pdf/emeraina environmental risks early warnings FB12 en.pdf.

> Conferences and Symposia

Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and
Management - ITRC 2-day Classroom Training, Denver, CO, May 9-10, 2016. This
2-day ITRC classroom training is based on the ITRC Technical and Regulatory Guidance
Web-Based Document, Petroleum Vapor Intrusion: Fundamentals of Screening,
Investigation, and Management (PVI-1, 2014) and led by internationally recognized
experts. Wthin the training class - hear about EPA's Technical Guide For Addressing
Petroleum Vapor Intrusion At Leaking Underground Storage Tank Sites (June 2015).The
ITRC guidance document and EPA guide are complementary documents with the ITRC
training course providing the "how-to" knowledge and skills for screening, investigating,
and managing the petroleum vapor intrusion pathway. The class will enable you to
develop the skills to screen-out petroleum sites based on the scientifically-supported ITRC
strategy and checklist; focus the limited resources investigating those PVI sites that truly
represent an unacceptable risk; and communicate ITRC PVI strategy and justify
science-based decisions to management, clients, and the public. Interactive learning with
classroom exercises and Q&A sessions will reinforce these course learning objectives. For
local, state, and federal government; students; community stakeholders; and tribal
representatives, ITRC has a limited number of scholarships (waiver of registration fee
only) available. For more information and to register, see http://www.itrcweb.ora/trainina.

Incremental-Composite Soil Sampling, Chicago, IL, July 28, 2016. This full-day course
focuses on the theory and application of ITRC's Incremental Sampling Methodology (ISM),
composite sampling designs, and hybrids of the two (Incremental-Composite Sampling,
ICS). ICS hybrid designs are useful to address multiple project goals simultaneously.

Since "representativeness" is a key aspect of data quality and ISM/ICS data are
demonstrably more representative than most discrete data, it will be argued that ICS data
are indeed "better" than non-ICS data. The course will answer questions such as: What is
the difference between ITRC's ISM and EPA's Incremental-Composite Sampling (ICS)
strategies? Is there written EPA guidance? What features should an ISM or ICS design
have? Can ICS give project risk assessors the data they want, while simultaneously
meeting the RPM's own data needs for characterization or remedial design? How are
background concentrations determined and comparisons to background handled using
ICS? How do we know whether ICS "worked" for the project? For more information and to

Call for Abstracts! 2016 National Training Conference on the Toxics Release
Inventory (TRI) and Environmental Conditions in Communities, Washington, DC,
October 19-20, 2016. This year marks the 30th anniversary of the Emergency Planning

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and Community Right-to-Know Act (EPCRA) (https://www.epa.aov/eDcra). which supports and
promotes emergency planning and provides the public with information about releases of
toxic chemicals in their community through the Toxics Release Inventory (TRI). Join us for
presentations, panels, discussions, exhibits, and networking opportunities as we celebrate
TRI's 30th birthday and look ahead to the next 30 years of community right-to-know. The
TRI Program provides information on industrial releases and other waste management of
toxic chemicals and what industrial facilities are doing to prevent pollution in communities.
This conference is the TRI Program's main public outreach and training event, bringing
together EPA, localities, states, tribes, federal agencies, companies, community groups,
researchers, and non-governmental organizations. The theme of this year's conference is
TRI at 30: Working Together To Reduce Toxic Releases. The conference
co-sponsors-the U.S. Environmental Protection Agency and Dillard University's Deep
South Center for Environmental Justice-invite you to submit abstracts for oral
presentations, posters and exhibits. This is a great opportunity to present your research,
share knowledge, and network with others. Abstracts will be accepted through May 20,
2016. For more information on how to submit your abstract and to register, see

https://www,epa,aov/toxics-release-inventorv-tri-proaram/2016-tri-national-trainina-conference.

NOTE: For TechDirect, we prefer to concentrate mainly on new documents and the
Internet live events. However, we do support an area on CLU-IN where announcement
of conferences and courses can be regularly posted. We invite sponsors to input
information on their events at https://ciu-in.ora/courses. Likewise, readers may visit this area for
news of upcoming events that might be of interest. It allows users to search events by
location, topic, time period, etc.

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