Message #90: August 2004

Welcome to TechDirect. Since the July 1 message, TechDirect
gained 258 new subscribers for a total of 19,733. If you feel the
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Anyone interested in subscribing may do so on CLU-IN at
http://clu-in.org/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.

The purpose of TechDirect is to identify new technical, policy and
guidance resources related to the assessment and remediation of
contaminated soil 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 Internet Seminars

ITRC Radiation Risk Assessment: Updates and Tools, August 5.

This training clarifies the variations between the dose approach used
at some sites and EPA's risk-based approach. It also elaborates on
the methodology used to develop risk-based remediation goals. For
more information and to register, see or httn://ciu-in.0m/studi0 or htt p://www. it rcwe b.o rq .

ITRC Characterization and Remediation of Soils at Small Arms
Firing Ranges, August 10. This seminar introduces the participants
to the various physical (including hydraulic), chemical, and
biochemical mechanisms available to treat or stabilize SAFRs after
some unique characterization challenges are overcome. This training
is based on the ITRC document entitled: Technical & Regulatory
Guidance Document for Small Arms Firing Range Remediation
Technologies. For more information and to register, see httnv/www.itrcweh.om

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

ITRC Systematic Approach to In Situ Bioremediation: Nitrates,
Carbon Tetrachloride, and Perchlorate, September 2. This
training presents a decision tree for reviewing, planning, evaluating,
and approving in situ bioremediation (ISB) systems in the saturated
subsurface. It defines site parameters and appropriate ranges of
criteria necessary for characterization, testing, design, and
monitoring of ISB technologies. For more information and to register,

S00 http://clu-in.ora/studio Of http://www.itrcweb.org .

New Documents and Web Content

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Guidance for Obtaining Representative Laboratory Analytical
Subsamples from Particulate Laboratory Samples (EPA
600-R-03-027). This guidance was published by the EPA National
Risk Management Research Laboratory. It provides education and
instruction for managing a potential weakness in environmental data
quality for solid materials. Representative data are the foundation of
correct decisions and effective remedial designs. This document
shows how analytical subsampling is a crucial link for representative
samples. It defines "sample representativeness" in terms of the
population of interest to the decision, which may or may not be
based on a bulk average. Examples show how careless subsampling
can severely bias analytical results (November 2003, 156 pages).

View or download at http://clu-in.org/techpubs.htm .

Performance Monitoring of MNA Remedies for VOCs in Ground
Water (EPA 600-R-04-027). This document provides technical
recommendations regarding the types of monitoring parameters and
analyses useful for evaluating the effectiveness of the natural
attenuation component of ground-water remedial actions. The
information will be helpful during the design of the performance
monitoring plan as well as during its implementation (April 2004, 92

pages). View or download at http://www.epa.aov/ada/download/reports/600R04027/600R04027.pdf .

Center for Subsurface Modeling Support (CSMoS). This website
is operated by the U.S. EPA National Risk Management Research
Laboratory. The 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
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.

For more information, see http://www.epa.aov/ada/csmos.html .

New and Improved FRTR Remediation Optimization Information.

The Federal Remediation Technologies Roundtable (FRTR)
Remediation Optimization web site was recently improved. A
compilation of 73 FRTR Optimization case studies are available for
the first time. The reports contain information on the optimization of

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remedial systems and/or long-term monitoring programs. Visitors can
search these reports by remedial technology, optimization method,
and other criteria. New additions to the site also include a list of
commonly-used acronyms and terms and a Meetings and
Conferences page. Proceedings of the Site Optimization Conference
held June 15-17 in Dallas, TX will be posted here later this month.
The FRTR Remediation Optimization page was also enhanced with
file format and size information as well as a site navigation pathway
that will guide visitors as they browse the site. To access the FRTR
Remediation Optimization website, see http://www.frtr.aov/optimization .

Cost and Performance Information on Cleanup Technologies
Available. The Federal Remediation Technologies Roundtable
(FRTR) recently compiled 117 new remediation case study and
technology assessment reports documenting the cost, performance,
and lessons learned in implementing a wide range of hazardous
waste cleanup technologies in the field, ranging from large-scale
demonstrations to full-scale applications. With this addition, a total of
632 reports are now available in four areas - 361 cost and
performance case study reports describing the use of remediation
technologies; 144 reports describing the use of site characterization
and monitoring technologies; 73 case studies describing long-term
monitoring/optimization of remediation technologies; and 54 reports
describing the assessments of remediation technologies at
hazardous waste sites. These reports and other related FRTR
information can be accessed at http://www.frtr.gov .

Abstracts of Remediation Case Studies, Volume 8 (EPA
542-R-04-012). This new report, published by the Federal
Remediation Technologies Roundtable (FRTR), is a collection of
abstracts summarizing 19 cost and performance case study reports
on the use of remediation technologies at contaminated sites. This
collection of case studies include 7 projects addressing cleanup of
soil and groundwater using in situ bioremediation technologies, 4
case studies focusing on soil vapor extraction for treatment of
halogenated volatile compounds, and 3 reports covering in situ soil
and groundwater treatment using chemical oxidation/reduction
technologies (June 2004, 109 pages). View or download at
httnv/nh,-in nm/tenhnuhs htm . For hard copies, contact (800) 490-9198 or fax to
(513) 489-8695.

Technology News and Trends - Issue 13 (EPA 542-N-04-004).

This quarterly update is published by the EPA Office of Superfund
Remediation and Technology Innovation. This issue focuses on
Triad applications, reference resources and available training (July
2004, 8 pages). View or download at http://clu-in.org/techpubs.htm . For hard

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copies, contact (800) 490-9198 or (513) 489-8190 or fax to (513)
489-8695.

Assessing Ground-Water Vulnerability to Contamination:
Providing Scientifically Defensible Information for Decision
Makers (USGS Circular 1224). This report, published by the U.S.
Geological Survey, provides an overview of some of the common
approaches used to scientifically determine the important factors
controlling the vulnerability of ground-water resources to
contamination. It also discusses the strengths and weaknesses of
the various approaches as sources of scientifically defensible
information for the water-resource management decision-making
process. Descriptions of scientifically defensible methods are
supported by example studies that have been conducted by the U.
S. Geological Survey (USGS) often in cooperation with local, state,
and regional water-resources agencies (Fall 2003, 33 pages). View

or download at http://water.usas.aov/pubs/circ/2002/circ1224/pdf/circ1224 verl .01 .odf .

ESTCP Cost and Performance Report: Applications of Synthetic
Aperture Radar to UXO Delineation (UXO-0126). This report was
published by the Department of Defense Environmental Security
Technology Certification Program (ESTCP). The demonstration was
conducted to determine the feasibility of using the foliage penetration
(FOPEN) synthetic aperture radar (SAR) to delineate UXO ranges.
The targets were 155-mm projectiles and objects representing 500-
and 2,000-lb bombs. Each type of target was arranged in grids of
sparse, moderate, and dense arrays in an open field with low ground
cover. Some targets were placed under trees (May 2004, 39 pages).

View or download at http://www.estcp.ora/documents/techdocs/UX-0126.pdf .

Conferences and Symposia

Oxygenate, LNAPL and Vapor Intrusion Workshops Set For The
21st Annual NGWA/API Groundwater Conference, Baltimore,
August 16-18. This National Ground Water Association - American
Petroleum Institute sponsored event will be held at the Wyndham
Baltimore Inner Harbor. Workshop participants will have the
opportunity to interact with nationally-recognized experts in the most
active areas of petroleum site research, cleanup and corrective
action. Conference keynote speakers include: Cliff Rothenstein,
Director of the EPA Office of Underground Storage Tanks; Ellen
Manges (EPA OSWER); and Horacio Tablada, (Maryland Dept. of
Environment). For agenda and registration information, see

http://www.ngwa.Org/e/conf/0408165040.shtml OT the COnfeTenCeS 3nd WOTkShOpS link
at http://www.api.ora/aroundwater .

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Call for Abstracts! Partners in Environmental Technology
Technical Symposium & Workshop, Meeting DoD's
Environmental Challenges, Washington DC, November
30-December 2. Abstracts are being accepted through August 23 for
poster space, and both federal and non-federal submissions will be
considered. This annual technical Symposium & Workshop,
sponsored by the Strategic Environmental Research & Development
Program (SERDP) and the Environmental Security Technology
Certification Program (ESTCP), will feature comprehensive sessions
that illustrate how SERDP and ESTCP research & development and
demonstration & validation efforts are assisting the Department of
Defense to address increasingly complex environmental challenges.
For details about how to submit a poster abstract, as well as the

latest conference information, see http://www.serdp.ora/svmposiums/svmposiums.html Of

call (703)736-4548.

Reminder! Midwestern States Risk Assessment Symposium,
Indianapolis, August 25-27. The symposium, sponsored by Indiana
Department of Environmental Management and others, will feature
the leading experts in the United States as speakers on urban
metals, urban PAHs, methods for evaluating vapor intrusion, and
characterizing Brownfields Sites. For registration and agenda

information, see http://www.spea.indiana.edu/msras/ .

2004 Fractured Rock Conference: State of the Science and
Measuring Success in Remediation, Portland ME, September
13-15. This conference is sponsored by the U.S. EPA and National
Ground Water Association. The purpose of the conference is to
identify the current state of remediating contaminated ground water
in fractured rock settings and make future remediation efforts more
effective. Invited plenary lectures will serve as reviews of our existing
understanding as well as looking at directions for the future. More
than 100 papers will be presented from scientists and engineers
from 10 nations. For agenda and registration information, see

http://www.nawa.Org/e/conf/0409135017.shtml .

Accelerated Bioremediation of Chlorinated Solvents Denver,
September 28-29. International experts present the latest
developments in bioremediation of chlorinated solvents. A logical
follow-on to the highly acclaimed training series "Natural Attenuation
of Chlorinated Solvents in Groundwater," this new course examines
the roles of site characterization, modeling, design, monitoring, and
regulatory interaction in applying in-situ engineered bioremediation.
Lectures, case studies, hands-on exercises, and structured
discussion sessions give students knowledge and information that
can immediately put to use. For registration and additional

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information, see httnv/wwwitrnwRhnm or contact Paul Had ley at
(916)324-3823.

Chemical Science and Commercialization Conference, Moscow,
September 27-29. The U.S. Department of State Bio-Chem Redirect
Program is sponsoring a first-ever conference. Its goal is to introduce
select chemical research and production institutes in Russia and
Eurasia to potential Western industrial partners, investors and
collaborators. Russian and Eurasian participants will include key
institutes specializing in organic and inorganic chemistry, polymer
chemistry and catalysis, synthetic chemistry, analytical chemistry,
chemical production, toxicology testing, occupational risk
assessment, and environmental testing. The organizers are seeking
broad participation from industry, academia, national laboratories,
and other potential collaborators and investors from the U.S.,

Europe, Canada and elsewhere. For more information, see

http://biistate.net/chemconference/ .

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://clu-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 orM™™-^ ieff@epa.aov. Remember, you
may subscribe, unsubscribe or change your subscription address at

httny/niu-innrnfenhrimt at any time night or day.

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