TechDirect, May 1, 2013


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TechDirect, May 1, 2013

Welcome to TechDirect! Since the April 1 message, TechDirect gained 342
new subscribers for a total of 34,716. If you feel the service is valuable, please
share TechDirect with your colleagues. Anyone interested in subscribing may
do so on CLU-IN at httn://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.

> Upcoming Live Internet Seminars

New CLU-IN Internet Seminar Archives Video Podcast Feed. Many of you know that
we routinely place seminars in our archives after the live broadcast. For select seminar
topics offered since 2012, we are now making complete video recordings available
through our archives. To subscribe to our video podcast feed, which will alert you when
new seminar archives are available, see http://ciu-in.ora/iive/archive or go directly to

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

FRTR Presents: Large-Dilute Plumes: Challenges and Opportunities - May 1,
2013, 2:00PM-4:00PM EDT (18:00-20:00 GMT). Recently, "large-dilute plumes" of
chlorinated solvents have emerged as a peculiar challenge in environmental clean-up.
This class of plume has several defining characteristics. These characteristics include
biogeochemical conditions that result in slow contaminant degradation and that allow
plume expansion, as well as matrix diffusion that results in secondary sources and that
extends remediation timeframe. Research at these sites has highlighted key
challenges and potential opportunities. Complicated fine-scale heterogeneity resulting
from the interaction of migrating contaminants with subsurface lithology and hydrology
is a particularly significant and recurring challenge resulting in concentrated plume
cores and the need for innovative-focused characterization and monitoring.
Understanding the subsurface distribution of contaminants and how the plume is
changing in time and space are keys to successful environmental response actions.
Research and data on attenuation of contaminants resulting from physical assimilation
along the flow path (such as a plume interacting with inactive pore spaces) and from
degradation by abiotic and microbial processes have extended our knowledge of
natural attenuation rates in aerobic-oligotrophic aquifers. The research indicates that
aerobic processes, particularly abiotic degradation due to magnetite/minerals and
aerobic cometabolism, are occurring in many large-dilute plumes. The attenuation rates
are correlated with measurable parameters such as magnetic susceptibility or various
microbial population metrics, including oxygenase enzyme activity probes, DNA
composition/quantity, and total microbial counts. Consistent with the observed plume
scales, the data confirm that aerobic degradation processes are slower than anaerobic
degradation processes. Nonetheless, incorporation of these natural rates into models
and predictions provides an important tool to aid in developing a comprehensive
strategy for large-dilute plumes mitigating the requirement for complete removal
during source treatment and encouraging combined remedies as well as the

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development of amendments to sustainably and cost-effectively enhance degradation
rates. For more information and to register, see http://ciu-in.ora/iive .

ITRC Soil Sampling and Decision Making Using Incremental Sampling
Methodology Parts 1 and 2 - May 7 and 9, 2013. This 2-part training course along
with ITRC's web-based Incremental Sampling Methodology Technical and Regulatory
Guidance Document (ISM-1, 2012) is intended to assist regulators and practitioners
with the understanding the fundamental concepts of soil/contaminant heterogeneity,
representative sampling, sampling/laboratory error and how ISM addresses these
concepts. Through this training course you should learn: basic principles to improve soil
sampling results, systematic planning steps important to ISM, how to determine ISM
Decision Units (DU), the answers to common questions about ISM sampling design
and data analysis, methods to collect and analyze ISM soil samples, the impact of
laboratory processing on soil samples, and how to evaluate ISM data and make
decisions. In addition this ISM training and guidance provides insight on when and how
to apply ISM at a contaminated site, and will aid in developing or reviewing project
documents incorporating ISM (e.g., work plans, sampling plans, reports). For more
information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/iive .

NARPM Presents...Practical Applications and Methods of Optimization across the
Superfund Pipeline (Part 2) - May 8, 2013,1:00PM-3:00PM EDT (17:00-19:00 GMT).

This seminar is a continuation of the Part 1 seminar presented on April 30, 2013 which
centered on EPA's "National Strategy to Expand Superfund Optimization Practices
from Remedial Investigation to Site Completion." Part 2 of the seminar will present case
studies of three prior optimization evaluations: (1) Black Butte Mine; (2) Grants
Solvents; and (3) Gilt Edge Mine. For more information and to register, see

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

ITRC Use and Measurement of Mass Flux and Mass Discharge - May 14, 2013,
2:00PM-4:15PM EDT (18:00-20:15 GMT). The ITRC technology overview, Use and
Measurement of Mass Flux and Mass Discharge (MASSFLUX-1, 2010), and
associated Internet-based training provide a description of the underlying concepts,
potential applications, description of methods for measuring and calculating, and case
studies of the uses of mass flux and mass discharge. This Technology Overview, and
associated Internet-based training are intended to foster the appropriate understanding
and application of mass flux and mass discharge estimates, and provide examples of
use and analysis. The document and training assumes the participant has a general
understanding of hydrogeology, the movement of chemicals in porous media,
remediation technologies, and the overall remedial process. For more information and

tO register, see http://www.itrcweb.org Or http://clu-in.ora/live .

ITRC Environmental Molecular Diagnostics: New Tools for Better Decisions - May
21, 2013, 2:00PM-4:15PM EDT (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
training, learners will 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

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more information and to rsgistsr, S66 http://www.itrcweb.ora or http://clu-in.ora/live .

EPA's Methodology for Understanding and Reducing a Project's Environmental
Footprint - May 22, 2013,1:00PM-3:00PM EDT (17:00-19:00 GMT). The process of
cleaning up a hazardous waste site uses energy, water and other natural or materials
resources and consequently creates an environmental footprint of its own. In February
2012, the U.S. EPA released a methodology for quantifying the environmental
footprints. The information obtained helps prioritize efforts to reduce the footprint and
improve the outcome of cleanups under any regulatory program. This two-hour seminar
will: (1) briefly discuss the regulatory framework; (2) summarize the methodology for
estimating or quantifying the footprint and the associated metrics; (3) walk participants
through the steps of performing an environmental footprint analysis; (4) present some
questions for discussion and share lessons learned from early adopters. An open forum
will be held after the presentations, during which participants will be able to submit
questions and feedback to the speakers. For more information and to register, see

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

Military Munitions Support Services Series, May 30, July 25, and August 29. This
new series of monthly webinars supports the Military Munitions Support Services
(M2S2) community. For more information and to register, see http://ciu-in.ora/iive .

> New Documents and Web Resources

Request for Input: Draft Final Vapor Intrusion Guidance Documents. EPA has

prepared external review drafts of two guidance documents about vapor intrusion: a
general guidance for all compounds and one focused on petroleum hydrocarbons
released from underground storage tanks. When final, these guidance documents will
help ensure vapor intrusion exposure assessment and mitigation actions to protect
human health are undertaken in a technically, scientifically and nationally consistent
manner. The public may provide input by May 24, 2013. For more information and

instructions, see http://www.epa.aov/oswer/vaporintrusion/ .

Optimization Review: Velsicol Chemical Corporation, Hardeman County Landfill
Superfund Site, Toone, Tennessee (EPA 540-R-013-015). The Velsicol Chemical
Corporation Hardeman County Landfill Superfund Site (the Site) is located in a rural
area near the town of Toone in western Tennessee. The optimization review of the Site
includes a comprehensive review of the conceptual site model (CSM), existing soil and
waste remedies, soil vapor extraction (SVE) pilot studies, and potential remedial
alternatives for soil. While the focus of this review is on potential soil and waste
remediation, an initial review of potential groundwater remediation is also considered
(January 2013, 65 pages).View or download at http://ciu-in.ora/techpubs.htm .

Optimization Review: Groveland Wells Numbers 1 and 2 Superfund Site, Town of
Groveland, Essex County, Massachusetts (EPA 542-R-13-001). The document
describes the optimization evaluation that was performed on the water treatment plant
at the Gilt Edge Mine Superfund Site in Lawrence County, South Dakota. The
document includes a description of the efforts performed during the optimization review,
a description of the remedy components at the sites, a description of the conceptual site
model, and findings and recommendations for the site (January 2013, 78 pages). View

Or download at http://clu-in.ora/techpubs.htm .

Engineering Issue Paper: Sustainable Materials Management in Site Cleanup
(EPA 542-F-13-001). Sites undergoing cleanup provide opportunities for reducing
waste and diverting it from landfills. Many of the opportunities involve reusing onsite

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materials, reusing or recycling materials offsite, and procuring construction materials
with recycled content. Site-specific examples of applying these and other strategies
and an extensive compendium of related tools and resources are now available in this
issue paper compiled by the Engineering Forum of the U.S. EPA's Technical Support
Project (March 2013, 12 pages). View or download at http://ciu-in.ora/techpubs.htm .

EUGRIS Corner. New Documents on EUGRIS, the platform for European
contaminated soil and water information. More than 10 resources, events, projects and
news items were added to EUGRIS in April. 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:

The ADOVCATE Project (Advancing Sustainable In Situ Remediation for
Contaminated Land and Groundwater).This project will develop innovative in situ
remediation (ISR) concepts for the sustainable management of contaminated land
groundwater, as required by WFD. View more information at http://www.theadvocateproiect.eu/ .

> Conferences and Symposia

Facility Decommissioning Training Course, Deep River, Ontario, Canada, May
7-9, 2013. The purpose of the course is to provide information on the basic steps in the
decommissioning process and impart lessons learned from past experiences in
decommissioning.ln this manner, elements learned at this training course will assist in
decision-making, planning, and implementation associated with the decommissioning
of various types of nuclear facilities. Moreover, a major objective of this training course
is to demonstrate the need for early and complete project planning to achieve safe and
cost-effective decommissioning of research reactors and other small nuclear
installations. For more information and to register, see http://www.dd.ani.aov/ddtrainina/.

Training Sessions at the Brownfields 2013 Conference, Atlanta, GA, May 15,
2013. EPA's Office of Solid Waste and Emergency Response (OSWER) will be offering
three training sessions on May 15 in conjunction with the Brownfields 2013 Conference
in Atlanta, GA. Training Sessions will include: (1) Best Management Practices for Site
Assessment, Remediation and Greener Cleanups; (2) Brownfields Road Map Training;
and (3) Leveraging Contracts for Innovative Site Characterization and Cleanup. All
sessions will be held at the Georgia World Congress Center (285 Andrew Young
International Blvd NW, Atlanta, GA).For more information and to register, see

http://www.trainex.org/TIFSD BF2013/ .

LNAPLs: Science, Management, and Technology ITRC 2-day Classroom Training
offered two more times in 2013: Springfield, IL (June 4-5, 2013) and Garden
Grove, CA (October 1-2, 2013). 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 number of scholarships
(waiver of registration fee only) available. For more information and to register, see

http://www.itrcweb.ora/trainina .

Registration Now Open!! Applications of Nanotechnology for Safe and

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Sustainable Environmental Remediations, Hammond, LA, June 5-7, 2013. This is
the first national workshop that provides an opportunity for representatives from the
environmental remediation community, industry, academia, and government to: share
their perspectives, pose questions, and develop ideas for design of good guidelines,
selection criteria, and work practices to support safe and sustainable nano-enabled
environmental remediation; become acquainted with other U.S. nanotechnology
stakeholders, including vendors, transporters, and contractors of the remediation sites
and communities; and share case studies of nano-enhanced clean up technologies,
including selection criteria for alternative remediation strategies and methods, job
planning, job tasks, and nanomaterial handling practices. 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 http://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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