TechDirect, January 1, 2008

Happy Holidays and may you have a prosperous
new year! Welcome to TechDirect. Since the
December 1 message, TechDirect gained 167
new subscribers for a total of 29,714. If you feel
the service is valuable, please share TechDirect
with your colleagues. Anyone interested in

subscribing may do so on CLU-IN at http://ciu-in.org. 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 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

ITRC Perchlorate: Overview of Issues, Status, and Remedial Options - January

15. Improved analytical methodology has increased the known extent of perchlorate
contamination in the U.S. A variety of remediation technologies are currently
commercially available and being used for perchlorate remediation. This training,
based on ITRC's Perchlorate: Overview of Issues, Status, and Remedial Options
(PERC-1), explains why perchlorate is a hot topic in the environmental community
including up-to-date information on sources, occurrences, toxicity and exposure,
regulatory status and remediation alternatives. For more information and to register,

SG6 http://www.itrcweb.ora Of http://clu-in.ora/studio .

ESTCP Solicitation - January 17. This seminar will provide a summary of the
Environmental Security Technology Certification Program (ESTCP) funding
opportunities for interested investigators to conduct innovative technology
demonstrations/validations.This "how to play" briefing will offer essential information for
those who wish to understand new funding opportunities within ESTCP. The FY09
ESTCP solicitation will be released in early January and attendees may use this time to
ask general questions about the solicitation. For more information and to register, see

http://clu-in.ora/studio .

Community Action for a Renewed Environment (CARE) National Webcast for the
2008 Request for Proposal - January 18, February 11 and 27. This webcast is an
opportunity for potential applicants to the CARE cooperative agreement program to
learn more about and ask questions about the Request for Initial Proposals that was
issued in December 2007. Visit www.ena.nnv/cARE for more information on the CARE
program. To register, see httEV/dujnjorg/studjo .

Characterizing Mass Transfer and Mass Flux for DNAPL Source Zones - January

22. To accurately assess the human health risks associated with DNAPLs in the
subsurface, and to design effective remediation systems for such contamination, it is
essential to understand contaminant mass-transfer and mass flux behavior associated
with DNAPL source zones. The contaminant mass flux or mass discharge emanating

TechDirect: January 1, 2008

1 of 4

clu-in.ora/newsletters


-------
from a source zone, also referred to as the source strength or source function, is a
primary determinant of the risk associated with a contaminated site. Concomitantly, the
reduction in mass flux achieved with a specific level of source-zone mass removal (or
mass depletion) is a key metric for evaluating the effectiveness of a source-zone
remediation effort. Thus, there is great interest in characterizing, estimating, and
predicting relationships between mass flux reduction and mass removal. The nature of
the relationship between mass flux reduction and mass removal will be mediated by the
properties and distribution of the porous medium and of the DNAPL (source-zone
architecture), and their resultant impacts on the pore-water velocity field and
mass-transfer dynamics. In addition, the relationship between mass flux reduction and
mass removal may change with time due to temporal changes in source-zone
architecture and mass-transfer dynamics (i.e., source-zone aging).Furthermore, the
mass-flux-reduction/mass removal relationship may be affected by source-zone
remediation efforts. These issues will be illustrated using the results of studies
spanning a range of spatial and temporal scales. For more information and to register,

SG6 http://clu-in.org/studio .

ITRC Remediation Process Optimization Advanced Training - January 24.

Remediation Process Optimization (RPO) is the systematic evaluation and
enhancement of site remediation to ensure that human health and the environment are
being protected over the long term at minimum risk and cost. The purpose of this ITRC
training is to present an overview of the material covered in five technical fact sheets
that ITRC's RPO Team produced to enhance site remediation optimization and
decision-making. The training modules provide additional information and techniques
to improve project schedules, effectively manage resources, emphasize risk, and
discuss tools to efficiently cleanup contaminated sites. For more information and to

register, see http://www.itrcweb.ora Or http://clu-in.ora/studio .

ITRC Risk Assessment and Risk Management: Determination and Application of
Risk-Based Values - January 29. This training course describes the development and
application of risk-based screening values. The first module provides a review of key
risk assessment concepts related to risk management. The second module focuses on
the process by which risk-based levels are derived in different states. The third module
examines the application of risk assessment to remediation operations in two case
studies providing examples of how risk assessment has actually been implemented,
based upon research and case studies conducted by the ITRC Risk Assessment
Resources team. This training course describes a number of the reasons behind
variations in risk-based screening values and their use in risk management. For more
information and to register, see http://www.itrcweb.ora or http://ciu-in.ora/studio .

> New Documents and Web Resources

CLU-IN Site Tour. CLU-IN houses the latest detailed information on innovative site
characterization, monitoring, and remediation approaches. In fact, CLU-IN has so many
resources and services available that it can be hard for new visitors to quickly see all
that it has to offer. The CLU-IN Site Tour briefly describes some of the CLU-IN
resources that can make your job easier. Take the tour at http://ciu-in.ora/tour/.

The Use of Soil Amendments for Remediation, Revitalization, and Reuse (EPA
542-R-07-013).ln August 2006, the U.S. EPA Office of Superfund Remediation and
Technology Innovation brought together 18 federal and local government, academic,
and private sector experts to answer questions about using soil amendments in
remediating, revitalizing, and reusing contaminated lands. A new tool to encourage and
assist site cleanup managers to use soil amendments for remediation, revitalization,

TechDirect: January 1, 2008

2 of 4

clu-in.ora/newsletters


-------
and reuse of their sites resulted from this collaboration. The Use of Soil Amendments
for Remediation, Revitalization, and Reuse is a white paper that describes soil
amendments, the advantages of using them, the types of environmental problems and
contaminants they can address, the types of sites where they can be used, and
regulatory and other issues related to using them. It focuses on the use of amendments
on sites dominated by inorganic contaminants, although they also can be used to
address volatile and semivolatile contaminants that have left sites barren of vegetation
(December 2007, 59 pages). View or download at http://ciu-in.ora/techpubs.htm .

REMChlor Model Now Available. The EPA Center for Subsurface Modeling Support
(CSMoS) provides public domain ground-water and vadose zone modeling software
and services to public agencies and private companies throughout the nation. The
primary aims of CSMoS are to provide direct technical support to EPA and State
decision makers in subsurface model applications and to manage and support the
ground-water models and databases resulting from the research at National Risk
Management Research Laboratory (NRMRL). This research encompasses the
transport and fate of contaminants in the subsurface, the development of
methodologies for protection and restoration of ground-water quality, and the evaluation
of subsurface remedial technologies. As a result, a major focus of CSMoS entails
coordinating the use of models for risk assessment, site characterization, remedial
activities, wellhead protection, and Geographic Information Systems (GIS) application.
The Remediation Evaluation Model for Chlorinated Solvents (REMChlor) Version 1.0 is

nOW available for download. See http://www.epa.aov/ada/csmos.html .

Technical Support Project Highlights. EPA's Technical Support Project met in
November at the National Exposure Research Laboratory (NERL) to discuss a range of
technical topics, including fractured rock, mass flux, technical impracticability waivers,
and remediation case studies. NERL also presented updates on their research into
geophysical methods to monitor remediation, a new analytical method for VOCs in
difficult matrices, and remote sensors. The Highlights newsletter summarizes these
discussions and provides links to the technical presentations for further information
(December 2007, 7 pages). View or download at

http://www.epa,aov/tio/tsp/download/2007 fall meeting/fall 2007 hiahliahts.pdf .

Technology News and Trends (EPA 542-N-06-012). This issue contains articles on a
mulch dual-wall PRB that promotes anaerobic degradation of chlorinated ethenes,
subsurface injections of emulsified soybean oil to accelerate PCE biodegradation, and
a Strategic Environmental Research and Development Program (SERDP) study that
identifies subsurface sampling methods for enhanced decision-making (November
2007, 6 pages). View or download at http://ciu-in.ora/techpubs.htm .

Underground Storage Tank State Delivery Prohibition Programs. EPA designed a
page to help petroleum and hazardous substance delivery companies determine
whether an underground storage tank (UST) is eligible for product delivery. This page
provides links to state and territory laws, regulations, and policies in order to help users
determine the applicable requirements in each state and territory. EPA updates this
information as states implement new delivery prohibition programs. View at

http://www.epa.aov/oust/dp/ .

Regulatory/Compliance Issues at Perchloroethylene Drycleaners. This
presentation discusses the drycleaning process, waste streams, historical operation
and waste management practices and targeted site assessment areas. View at

http://drvcleancoalition.org/regtour/ .

EUGRIS Corner. New Documents on EUGRIS, the platform for European
contaminated soil and water information. More than 25 resources, events, projects and
news items were added to EUGRIS in December, 2007. These can be viewed at

TechDirect: January 1, 2008

3 of 4

clu-in.ora/newsletters


-------
http://www.euaris.info/whatsnew.asp. Select the appropriate month and year for the updates in
which you are interested. The following reports were featured on EUGRIS:

Environmental Technologies Verification Systems (EUR 22933 EN). This report
stems from a request from the Environment Directorate General of the European
Commission to carry out a research study providing the necessary background for the
eventual creation of a European Environmental Technology Verification (ETV) system.
The report is based on the results of two consecutive research projects carried out by
JITEX on behalf of the Joint Research Centre's Institute for Prospective Technological
Studies. The first project focused on the identification and study of existing ETV
systems inside and outside Europe. The second project conducted a market survey on
users of ETV systems and examined financial and organizational aspects of ETV (2007,
112 pages). View or download at http://ftp.irc.es/eur22933en.pdf.

> Conferences and Symposia

EPA Workshop for Federal USTs, Washington, DC, January 9-10. The U.S.
Environmental Protection Agency is hosting a free, day and a half workshop for the
federal facility community. The Energy Policy Act of 2005 included substantial revisions
to the Underground Storage Tank (UST) requirements found in Subtitle I of RCRA.
One of the major changes to the UST program resulting from the Energy Policy Act
involved periodic regulatory inspections, which are now to be conducted on a three year
cycle. Recent inspections of federal facilities by EPA have found compliance problems
not only with USTs, but also with above ground storage tanks (ASTs). Therefore,

EPA's Federal Facilities Program is hosting this workshop as a refresher on federal
tank requirements. For more information and to register, see http://www.fedcenter.nnv/traininn/ust/.

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
128 conferences and courses featured. We invite sponsors to input information on their
events at http://ciii-in.orn/conrees. 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.nov. Remember, you may subscribe, unsubscribe or change
your subscription address athttp://ciu-in.om/techdrct at any time night or day.

Unsubscribe | Modify Your Subscription | Questions & Comments | Technical Problems
Privacy and Security Notice
TechDirect Archives

TechDirect: January 1, 2008

4 of 4

clu-in .ora/newsletters


-------