TechDirect, February 1, 2016


U,5. ENVIRONMENTAL PROTECTION AGENCY

TechDirect, February 1, 2016

Welcome to TechDirect! Since the January 1 message, TechDirect gained 227
new subscribers for a total of 35,656. If you feel the service is valuable, please
share TechDirect with your colleagues. Anyone interested in subscribing may
do so on CLU-IN at httns://ciu-in.nm/techdirect. All previous issues of TechDirect are
archived there. The TechDirect messages of the past can be searched by
keyword or can 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.

m

> Upcoming Live Internet Seminars

ITRC Issues and Options in Human Health Risk Assessment - A Resource When
Alternatives to Default Parameters and Scenarios are Proposed - February 2,
2016,1:00PM-3:15PM EST (18:00-20:15 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 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://clu-in.ora/live.

ITRC Environmental Molecular Diagnostics: New Tools for Better Decisions -
February 4, 2016, 1:00PM-3:15PM EST (18:00-20:15 GMT). Environmental molecular
diagnostics (EMDs) are a group of advanced and emerging analytical techniques used
to analyze biological and chemical characteristics of environmental samples. Although
EMDs have been used over the past 25 years in various scientific fields, particularly
medical research and diagnostic fields, their application to environmental remediation
management is relatively new and rapidly developing. The ITRC Environmental
Molecular Diagnostics Fact Sheets (EMD-1, 2011), ITRC Environmental Molecular
Diagnostics Technical and Regulatory Guidance (EMD-2, 2013) and this companion
Internet-based training will foster the appropriate uses of EMDs and help regulators,
consultants, site owners, and other stakeholders to better understand a site and to
make decisions based on the results of EMD analyses. At the conclusion of the

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training, learners should be able to determine when and how to use the ITRC
Environmental Molecular Diagnostics Technical and Regulatory Guidance (EMD-2,
2013); define when EMDs can cost-effectively augment traditional remediation data
sets; and describe the utility of various types of EMDs during remediation activities. For
more information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/iive.

Military Munitions Support Services - Munitions Medley - February 11, 2016,
1:00PM-5:00PM EST (18:00-22:00 GMT). This will be a Military Munitions Support
Services seminar with subject matter experts discussing advanced classification, the
Buried Explosion Module (BEM), landfill removal action, and beach replenishment. For
more information and to register, see http://ciu-in.ora/iive.

ITRC Groundwater Statistics for Environmental Project Managers - February 18,
2016,1:00PM-3:15PM EST (18:00-20:15 GMT). Statistical techniques may be used
throughout the process of cleaning up contaminated groundwater. It is challenging for
practitioners, who are not experts in statistics, to interpret, and use statistical
techniques. ITRC developed the Technical and Regulatory Web-based Guidance on
Groundwater Statistics and Monitoring Compliance (GSMC-1, 2013) and this
associated training specifically for environmental project managers who review or use
statistical calculations for reports, who make recommendations or decisions based on
statistics, or who need to demonstrate compliance for groundwater projects. The
training class will encourage and support project managers and others who are not
statisticians to: use the ITRC Technical and Regulatory Web-based Guidance on
Groundwater Statistics and Monitoring Compliance (GSMC-1, 2013) to make better
decisions for projects; apply key aspects of the statistical approach to groundwater
data; and answer common questions on background, compliance, trend analysis, and
monitoring optimization. ITRC's Technical and Regulatory Web-based Guidance on
Groundwater Statistics and Monitoring Compliance (GSMC-1, 2013) and this
associated training bring clarity to the planning, implementation, and communication of
groundwater statistical methods and should lead to greater confidence and
transparency in the use of groundwater statistics for site management. For more
information and to register, see http://www.itrcweb.ora or https://ciu-in.ora/iive.

ITRC Petroleum Vapor Intrusion: Fundamentals of Screening, Investigation, and
Management - February 23, 2016,1:00PM-3:15PM EST (18:00-20:15 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

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petroleum hydrocarbons or where LNAPL is present. For more information and to

ITRC Remedy Selection for Contaminated Sediments - February 25, 2016,
1:00PM-3:15PM EST (18:00-20:15 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://clu-in.ora/live.

SERDP and ESTCP Webinar Munitions Response - February 25, 2016. SERDP and
ESTCP are offering webinars to promote the transfer of innovative, cost-effective and
sustainable solutions. The webinar series targets end users including practitioners, the
regulatory community and researchers to provide cutting-edge and practical information
from sponsored research and technology demonstrations. This webinar will feature two
speakers highlighting Department of Defense (DoD) efforts on the classification of
underwater munitions. Dr. Aubrey Espa^a and Dr. Tim Marston from the University of
Washington will discuss the interdisciplinary nature of detecting, classifying and
remediating munitions found at underwater sites with a focus on the acquisition of raw
acoustic sonar data, current models that simulate it, and the processing tools that are
used to reduce the raw data to ~data products.^ In addition, the speakers will talk about
using these data products to train and test classification algorithms, how to estimate the
performance of these algorithms, and recent efforts to use model results to optimize
sonar performanceFor more information and to register, see

https://serdp-estcp.ora/Tools-and-TraininaAA/ebinar-Series.

Identifying the Potential for Methylation of Mercury at Mining Sites - March 29,
2016,1:00PM-3:00PM EDT (17:00-19:00 GMT). This Mining Series webinar presents
two case studies that highlight the treatment potential for mercury methylation at mining
sites. Methyl mercury (MeHg) is a toxic and bioavailable form of mercury. The first case
study will document results of a treatability study conducted at the Formosa Mine
Superfund site to assess the influence of sulfate-reducing bacteria on the production of
MeHg during the treatment of mining-influenced water.The results are being used to
inform the design, application, and assessment of sulfate-reducing biochemical
reactors. The second looks at the impact of water level fluctuation on sediment in the
Cottage Grove Reservoir, located downstream from the former Black Butte mercury
mine of the Black Butte Superfund site. Results suggest that exposure of sediments to
air while water levels are lowered may replenish the supply of sulfate (and/or other
electron acceptors) needed to stimulate microbial production of MeHg mercury when
the reservoir level is raised. For more information and to register, see http://ciu-in.ora/iive.

> New Documents and Web Resources

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Performance Assessment for Pump-and-Treat Closure or Transition. Performance
assessment during Pump-and-Treat (P&T) remedy implementation may be needed
because of diminishing returns, the complex nature of the site and contamination, or
other factors. A new document has been published describing a structured approach for
assessing P&T performance to support a decision to optimize, transition away from, or
close a P&T remedy. The approach includes revisiting the conceptual site model to
consider the current nature of the source and plume and to describe the site in terms of
specific decision elements. These decision elements are applied in a decision logic
framework to facilitate selection of the outcome that is best supported by the
performance assessment. Case studies are used in the document to augment
descriptions of decision elements and to illustrate each type of outcome identified in the
performance assessment approach. The document also points to resources (tools and
relevant guidance) to facilitate conducting the P&T assessment. The document was
prepared by the Pacific Northwest National Laboratory and U.S. Army Corps of
Engineers Environmental and Munitions Center of Expertise with review and input from
industry, U.S. Department of Energy, U.S. Environmental Protection Agency, and U.S.
Navy representatives (September 2015, 118 pages). View or download at

http://bioprocess,pnnl.gov/Pu mp-and-Treat.htm.

Archived SERDP & ESTCP Webinar on Per- and Polyfluoroalkyl Substances
(PFASs): Analytical and Characterization Frontiers. This January 28, 2016 webinar
archive includes presentations by Dr. Stephen TerMaath (Air Force Civil Engineer
Center), Dr. Jennifer Field (Oregon State University), and Dr. Christopher Higgins
(Colorado School of Mines). It targets Department of Defense and Department of
Energy practitioners, the regulatory community, and environmental researchers with
the goal of providing cutting edge and practical information. View archive and download

slides at https://www.serdp-estcp.ora/Toois-and-Trainina/webinar-series/01-28-20i6.

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:

• 2015 Top Markets Report - Environmental Technologies - A Market
Assessment Tool for U.S. Exporters

• Cost-Effective, Ultra-Sensitive Groundwater Monitoring for Site Remediation and
Management: ESTCP Cost and Performance Report

• Determination of the Biologically Relevant Sampling Depth for Terrestrial and
Aquatic Ecological Risk Assessments

• The Fishrand Spatially-Explicit Bioaccumulation Model

• Improvement, Verification, and Refinement of Spatially Explicit Exposure Models
in Risk Assessment: Spatially Explicit Exposure Model (SEEM) Demonstration

• Evaluating Transport and Attenuation of Inorganic Contaminants in the Vadose
Zone for Aqueous Waste Disposal Sites

• Improving Understanding of the Fate and Transport of Munitions Constituents to
Enhance Sustainability of Operational Ranges

• Permitting of Landfill Bioreactor Operations: Ten Years after the RD&D Rule

• Development and Validation of a Quantitative Framework and Management
Expectation Tool for the Selection of Bioremediation Approaches at Chlorinated
Ethene Sites

• Passive PE Sampling in Support of In Situ Remediation of Contaminated
Sediments

EUGRIS Corner. New Documents on EUGRIS, the platform for European
contaminated soil and water information. More than 12 resources, events, projects and

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news items were added to EUGRIS in January 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.

> Conferences and Symposia

The Emerging Contaminants Summit, Westminster, Colorado, March 1-2, 2016.

Brought to you by the producers of the RemTEC Summit, the Emerging Contaminants
Summit is a brand new conference dedicated to the latest developments in the
detection, fate and transport, risk assessment, treatment and regulation of emerging
contaminants. The summit draws leaders and key stakeholders from academia,
government, regulatory community as well as site owners, private consulting agencies
and various other environmental professionals to discuss the mitigation of emerging
contaminants across all environmental media including surface water, groundwater,
drinking water, wastewater, recycled water and soils. This year, USEPA staff will
present or chair sessions on a variety of topics including Steve Dyment (Analytical,
Toxicity, Regulatory and Legal Frontiers), Hilary Thornton (Characterization And
Mitigation of Perfluoroalkyl and Polyfluoroalkyl Substances) and Rick Stevens (Trace
Organics in Biosolids: A Regulatory Perspective). For more information and to register,

SG6 http://www.contaminantssummit.com/.

Intersol 2016 - International Conference-Exhibition on Soils, Sediments and
Water, Lille, France, March 15-17, 2016. Intersol 2016 themes cover polluted sites
and soils and health risks, pollution diagnoses, and research on toxicological and
eco-toxicological effects. For more information and to register, see http ://www.intersol.fr/.

Groundwater High-Resolution Site Characterization (HRSC), Denver, CO, March
22-23, 2016. This training course focuses on groundwater characterization and
discusses (1) the impacts of subsurface heterogeneity on the investigation and cleanup
of groundwater and related media, (2) the need for scale-appropriate measurements
and adequate data density, and (3) the tools and strategies that are available to
overcome the impacts of subsurface heterogeneity. After taking this course,
participants will be armed with information that will allow them to improve their
subsurface investigation approaches and develop more realistic and comprehensive
conceptual site models (CSM). CSMs developed based on HRSC strategies and tools
will decrease site uncertainty, improve the remedy selection process for groundwater
remedies, and better enable the evaluation, design, and implementation of targeted in
situ and ex situ groundwater remedies. The Groundwater HRSC course is an
advanced 2-day course. The recommended audience includes EPA, federal, state,
tribal and private industry technical project managers, practitioners and other
stakeholders involved in groundwater investigation and remediation. For more
information and to register, see https://trainex.ora/hrsc.

LNAPLs: Science, Management, and Technology - ITRC 2-day Classroom
Training, Atlanta (area), GA, April 5-6, 2016. Led by internationally recognized
experts, this 2-day ITRC classroom training will enable you to develop and apply an
LNAPL Conceptual Site Model (LCSM), understand and assess LNAPL subsurface
behavior, develop and justify LNAPL remedial objectives including maximum extent
practicable considerations, select appropriate LNAPL remedial technologies and
measure progress, and use ITRC's science-based LNAPL guidance to efficiently move
sites to closure. 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

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number of scholarships (waiver of registration fee only) available. For more information

and tO register, see http://www.itrcweb.ora/trainina.

9th Symposium on Design and Construction Issues at Hazardous Waste Sites,
Philadelphia, PA, April 20-22, 2016. The applications of engineering and science
associated with cleaning up hazardous waste sites continue to evolve rapidly. The goal
of this symposium, co-hosted by the Society of American Military Engineers (SAME)
Philadelphia Post and the U.S. EPA, is to facilitate an interactive engagement between
professionals from government and the private sector related to relevant and topical
issues affecting our field. For more information and to register, see

http://secure.sameposts.ora/franchises/philadelphia/events/634.

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. The class will enable you to develop on-the-job 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; communicate ITRC PVI strategy and justify science-based decisions to
management, clients, and the public; understand the essential principles of
biodegradation and the fundamentals of vapor movement through the vadose zone;
and appreciate the important role of modeling in the investigation of petroleum sites.
Interactive learning with classroom exercises and Q&A sessions will reinforce these
course learning objectives. You will also have the opportunity to network with other
environmental professionals. 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

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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