TechDirect, May 1, 2011

Welcome to TechDirect! Since the April 1 message, TechDirect gained 159 new
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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 ground water.

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

Soil Contaminant Bioavailability and Remediation - May 9, 2011, 2:30PM-4:30PM
EDT (18:30-20:30 GMT). Attend this session to learn about soil contaminant availability
and remediation with soil amendments. You'll learn about what we've done and learned
and where we need to focus for future success. For more information and to register,

SG6 http://clu-in.ora/live .

ITRC Phytotechnologies - May 10, 2011, 2:00PM-4:15PM EDT (18:00-20:15 GMT).

This training familiarizes participants with ITRC's Phytotechnology Technical and
Regulatory Guidance and Decision Trees, Revised (Phyto-3, 2009).This document
provides guidance for regulators who evaluate and make informed decisions on
phytotechnology work plans and practitioners who have to evaluate any number of
remedial alternatives at a given site. This document updates and replaces
Phytoremediation Decision Tree (Phyto-1, 1999) and Phytotechnology Technical and
Regulatory Guidance Document (Phyto-2, 2001). It has merged the concepts of both
documents into a single document. This guidance includes new, and more importantly,
practical information on the process and protocol for selecting and applying various
phytotechnologies as remedial alternatives. For more information and to register, see

http://www.itrcweb.ora OP http://clu-in.ora/live .

ITRC Use and Measurement of Mass Flux and Mass Discharge - May 12, 2011,
11:00AM-1:15PM EDT, (15:00-17:15 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 httEV/wwwjtrcwebjOi^ or httEV/dujrvorcj/ljve .

ITRC Mine Waste Treatment Technology Selection - May 19, 2011,

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11:00AM-1:15PM EDT (15:00-17:15 GMT). ITRC's Mining Waste Team developed the
ITRC Web-based Mine Waste Technology Selection site

(http://www.itrcweb.ora/mininawaste-auidance/^ to assist project managers in selecting an applicable
technology, or suite of technologies, which can be used to remediate mine waste
contaminated sites. Decision trees, through a series of questions, guide users to a set
of treatment technologies that may be applicable to that particular site situation. Each
technology is described, along with a summary of the applicability, advantages,
limitations, performance, stakeholder and regulatory considerations, and lessons
learned. Each technology overview links to case studies where the technology has
been implemented. In this associated Internet-based training, instructors provide
background information then take participants through the decision tree using example
sites. Project managers, regulators, site owners, and community stakeholders should
attend this training class to learn how to use the ITRC Web-based Mine Waste
Technology Selection site to identify appropriate technologies, address all impacted
media, access case studies, and understand potential regulatory constraints. For more
information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/iive .

Community Engagement Activities in Native American Communities - May 23,
2011,1:00PM-3:00PM EDT (17:00-19:00 GMT). Dr. Anna Harding and Dr. Barbara
Harper of Oregon State University will provide a seminar entitled "Addressing Tribal
Exposures to Polycyclic Aromatic Hydrocarbons (PAHs) and Building Tribal Capacity
though a Tribal-University Partnership." Their seminar focuses on the Confederated
Tribes of the Umatilla Indian Reservation (CTUIR) in Oregon and other tribes in the
United States who may be at increased risk of disease due to cumulative PAH
exposures from traditionally smoked foods, air exposure from traditional smoking of
foods, and ambient air pollution. Their work served to build tribal capacity and establish
a Tribal Advisory committee, IRB protocols and material and data sharing agreements,
and culturally appropriate activities focused on tribal needs. Dr. Jim Shine and Dr.
Laurel Schaider of Harvard University will also present a seminar entitled "Fate and
exposure studies of metals in rural Oklahoma: Engaging communities." For the last
seven years, Dr. Shine and Dr. Schaider conducted studies in rural northeastern
Oklahoma involving heavy metals associated with mine waste and mercury exposure
among subsistence and recreational fishers. Through these research activities,
proactive engagement with community groups, Native American tribes, and state and
federal agencies enhanced the quality and relevance of the research and promoted
greater trust among all groups. For more information and to register, see http://ciu-in.ora/iive .

ITRC In Situ Bioremediation of Chlorinated Ethene - DNAPL Source Zones - May
24, 2011, 2:00PM-4:15PM EDT (18:00-20:15 GMT). Treatment of dissolved-phase
chlorinated ethenes in groundwater using in situ bioremediation (ISB) is an established
technology; however, its use for DNAPL source zones is an emerging application. This
training course supports the ITRC Technical and Regulatory Guidance document In
Situ Bioremediation of Chlorinated Ethene: DNAPL Source Zones (BioDNAPL-3, 2008).
This document provides the regulatory community, stakeholders, and practitioners with
the general steps practitioners and regulators can use to objectively assess, design,
monitor, and optimize ISB treatment of DNAPL source zones. For more information and

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

Conducting Contamination Assessment at Drycleaning Sites - June 8, 2011,
1:00PM-3:30PM EDT (17:00-19:30 GMT). The State Coalition for Remediation of
Drycleaners (SCRD) is a forum of state environmental agencies designed to exchange
information and facilitate discussion of drycleaner remediation issues. In this training
SCRD members will present information from a recently updated guidance document
on conducting contamination assessment work at drycleaning sites. Salient aspects of
this document will be presented, including: an overview of the drycleaning process,
chemicals used, waste generation and management practices in the drycleaning
industry, site reconnaissance, identifying sampling locations and environmental

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assessment technologies applied to drycleaning facilities. The guidance and internet
seminar will help state regulators and practitioners identify likely areas of contamination
and more effectively implement investigation approaches at current and former
drycleaner facilities. For more information and to register, see http://ciu-in.ora/iive .

> New Documents and Web Resources

New CLU-IN Contaminant Focus Area on Characterization and Remediation of
Contaminated Fractured Rock Media. This new area features a discussion of
fractured rock characteristics and available tools to aid in the delineation of
contaminants found in fractured rock. The remediation section is broken into various
technologies with references on how they are used in fractured rock situations and
provides example sites where the technology has been applied. View and use at
http://www.ciu-in.ora/fracrock. Also, the fractured bedrock project profile database has been
updated and now includes about 238 site profiles. View and use at

http://www.clu-in.ora/products/fracrock/ .

Green Remediation Best Management Practices: Integrating Renewable Energy
into Site Cleanup (EPA 542-F-11-006). The U.S. Environmental Protection Agency
(EPA) Principles for Greener Cleanups outline the Agency's policy for evaluating and
minimizing the environmental "footprint" of activities undertaken when cleaning up a
contaminated site. Use of the best management practices (BMPs) identified in EPA's
series of green remediation fact sheets can help project managers and other
stakeholders apply the principles on a routine basis, while maintaining the cleanup
objectives, ensuring protectiveness of a remedy, and improving its environmental
outcome. Use of renewable energy resources provides a significant opportunity to
reduce the environmental footprint of activities conducted during investigation,
remediation, and monitoring of hazardous waste sites. Substitution of energy from fossil
fuel resources with energy from renewable resources is a primary approach for
addressing energy as one of the five core elements of green remediation strategies. In
turn, lower consumption of fossil fuel will reduce emission of greenhouse gases (GHG)
as well as particulate matter and other air pollutants (April 2011, 8 pages). View or

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

Reusing Potentially Contaminated Landscapes: Growing Gardens in Urban Soils
(EPA 542-F-10-011). EPA's new factsheet on urban gardening is now available. You
will find information on common contaminants that can be found in urban soil, ways to
identify contaminants and reduce exposure, improving soils and growing plants in mildly
contaminated soil, and additional resources and technical assistance (Spring 2011,12
pages). View or download at http://clu-in.ora/techpubs.htm .

New Triad Profiles available on the Triad Resource Center Website. New Triad
profiles have recently been added to the User Experiences section of the website.

These profiles are concise summaries of successful Triad projects and are backed by a
database that can be searched using various criteria such as contaminant, remedial
phase, and technology category. Triad is an innovative approach to data collection and
decision-making for hazardous waste site characterization and remediation, and the
U.S. Environmental Protection Agency's Triad Resource Center Website
(http://www.triadcentrai.oraA is a central location for information about the Triad Approach. The
website also offers a wide range of information about the use of the Triad including
access to the Triad Community of Practice (CoP), Triad technical resources and
guidance, and user experiences on the use of Triad at federal and private sites. For
additional information or to add a Triad profile, contact Cheryl Johnson at

Johnson.Chervl@epa.gov. View and USe at http://www.triadcentral.ora/user/profile/ .

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Focused Review of Specific Remediation Issues: An Addendum to the
Remediation System Evaluation for the Homestake Mining Company (Grants)
Superfund Site, New Mexico, Region 6 (EPA 542-R-11-002). The current evaluation
of the remediation efforts at the Homestake Mining Company (Grants) Superfund site
has been conducted on behalf of the US EPA by the US Army Corps of Engineers
Environmental and Munitions Center of Expertise. The evaluation is intended to
supplement the previous Remediation System Evaluation (RSE) conducted for the site
by Environmental Quality Management (EQM, 2008). Specific issues remaining from
the RSE, as identified in the Scope of Work, have been addressed through data
analysis and conceptual design (March 2011, 428 pages). View or download at

http://clu-in.ora/techpubs.htm .

In Small Doses: Arsenic. Researchers from the Dartmouth Toxic Metals Research
Program have created a 10-minute video for the general public on the subject of
arsenic. Funded by the National Institute of Environmental Health Sciences Superfund
Research Program, the film brings home findings of research on arsenic in well water
by identifying high-concentration areas in New England and offering pointers for
residents relying on wells for their drinking water. To educate residents about health
problems associated with arsenic and what they can do to protect themselves,
Dartmouth provides links to additional information from EPA and the U.S. Geological
Survey, as well as to state agencies that offer well-water testing for as little as $10.

View at http://insmalldoses.ora .

> Conferences and Symposia

Water Balance Covers for Landfills & Mine Sites: Achieving Engineering and
Regulatory Acceptance in the West, Denver, CO, May 17-19, 2011.This 2 1/2 day
workshop is intended to teach owners and operators, consultants, and engineers how
to design and submit quality proposals for water balance covers, and to teach regulators
how to evaluate those proposals. Participants will learn the hydraulic properties of
these covers, how to optimize designs with models, and how to ensure that the final
product is environmentally protective. Topics will include alternative cover design, soil
selection, construction, monitoring, including discussions of regulatory issues, soil
physics, plant-soil-water relations, hydraulic balance, saturated/unsaturated water
movement, and computer modeling. Regional case studies will be emphasized. For
more information and to register, see http://www.phvtosocietv.ora . For questions, to submit
poster abstracts, or for mail-in registrations contact Steve Rock, 513-569-7149,

rock.steven@epa.aov.

Registration Now Open!! International Conference on Sustainable Remediation
2011: State of the Practice, Amherst, MA, June 1-3, 2011. Sponsored by the
Environmental Institute at the University of Massachusetts Amherst and the U.S. EPA
Office of Superfund Remediation and Technology Innovation, the conference will
address the interrelated themes of green chemistry, human health, and environmental
response. Session presentations by scientists, practitioners, and regulators will feature
new research, field applications, and lessons learned. Leading researchers and
regulatory experts will provide an overview of the sustainable remediation landscape
and address research needs, policy and regulatory challenges moving forward. The
conference will feature 2 keynote presentations, 24 technical sessions, poster
presentations and a student poster competition, exhibits, and ample opportunities for
networking. The 2010 Green Remediation Conference attracted hundreds of attendees
(academia, government, non-profit, and private sector) from 16 countries and 31 States.
For more information and to register, see htte ://www.umass.edu/tei/conferences/SustainableRemediation/ .

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Vapor Intrusion Pathway: A Practical Guideline ITRC 2-day Classroom Training,
Novi, Ml (Detroit area), July 18-19, 2011. Led by internationally recognized experts,
this 2-day ITRC classroom training will enable you to learn the latest strategies to
conduct site screening and investigations; determine what tools are appropriate to
collect quality data and evaluate the results; apply multiple lines of evidence to ensure
quality decision-making; build solutions for VI issues through understanding of
mitigation options; and network with environmental professionals dealing with this
interdisciplinary and complex pathway. Interactive learning with hands-on exhibits,
classroom exercises, and frequent Q&A sessions will reinforce these course objectives
and contribute to a practical understanding of this difficult pathway. For more
information and to register, see http://www.itrcweb.ora/cii.asp.

Practical Models Supporting Remediation of Chlorinated Solvents, Seattle, WA,
July 26-27, 2011. Explore a subset of the publicly-available simulation and data
analysis tools that can be used alone or in combination to answer questions such as:
Will source remediation meet site goals? What will happen if no action is taken? Should
I combine source and plume remediation? What is the remediation timeframe? What is
a reasonable remediation objective? The model discussion will focus on the unique
features of selected models and how those features can support strategy development.
Emphasis will be on REMChlor, a newly released tool that simulates both source and
plume remediation. By providing the ability to simulate sites where conditions change in
space and time, REMChlor can provide information "equivalent" to the types of output
from more sophisticated numerical models. For more information and to register, see

http://srnl,doe,aov/csass/ .

Call for Abstracts and Registration Now Open!! Innovative Approaches to Mining
Cleanup and Reuse Workshop, Arlington, VA, October 6th, 2011. This workshop is
sponsored by the U.S. EPA Office of Superfund Remediation and Technology
Innovation and the International Committee on Contaminated Land. Abstracts for
presentations are welcome through July 29, 2011. The workshop will facilitate the
information exchange and networking among professionals from the public and private
sectors, domestic and international, on mining site cleanup and reuse and specifically
address: building sustainability into mining site cleanup, innovations in mining site
cleanup technologies, and engaging communities in site cleanup and reuse decisions.
For more information, to register, and to submit an abstract for consideration, see

http://www.MiningWorkshop.org .

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. Currently there are
34 conferences and courses featured. 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.

If you have any questions regarding TechDirect, contact Jeff Heimerman at (703)
603-7191 or heimerman.ieff@epa.gov. Remember, you may subscribe, unsubscribe or change
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