Message #64: June 2002
Welcome to TechDirect. Since the May 1 message, TechDirect gained 390 new
subscribers for a total of 13,963. If you feel the service is valuable, please share
TechDirect with your colleagues. Anyone interested in subscribing to TechDirect may do
so on CLU-IN at http://clu-in.org/techdirect . All previous TechDirect messages are archived there.
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.
CLU-IN Studio Update. Two new videos have been posted in the Studio section of
CLU-IN. Both videos were produced by the U.S. EPA Environmental Response Team. The
videos may be viewed using Real Player or Windows Media Player. See http://clu-in.org/studio .
The two new titles are:
Martin County, Kentucky Coal Waste Spill (Run Time 21 minutes).
Tranguch Gasoline Spill Site (Run Time 14 minutes).
New Documents and CDs
Workshop on Monitoring Oxidation-Reduction Processes for Ground-water
Restoration (EPA 600-R-02-002). This report was published by the U.S. EPA National
Risk Management Research Laboratory. It summarizes the findings of a workshop held to
discuss and summarize the current state-of-the-science with respect to methods of redox
monitoring, data interpretation, and their applications to ground-water remediation
(January 2002, 148 pages). View or download at http://www.epa.gov/ada/download/reports/epa 600 r02 002.pdf .
For hard copies, contact Kay Cooper at (580) 436-8651 or fax (580) 436-8503.
DNAPL Source Reduction: Facing the Challenge (DNAPL-2). This report was
published by the Interstate Technology and Regulatory Council (ITRC). It summarizes
current regulatory attitudes toward DNAPL source zone remediation and outlines the pros
and cons of partial source removal. Along the way, it challenges assumptions about the
infeasibility of removing DNAPLs from certain geological settings where recent advances
have made significant source reduction more feasible and cost-effective (April 2002, 48
pages). View or download at http://www.itrcweb.org/user/DNAPL-2.pdf .
Determining Cleanup Goals at Radioactively Contaminated Sites: Case Studies
(RAD-2). This report was published by the ITRC. This document summarizes the various
regulatory standards and requirements that dictate the cleanup at radioactively
contaminated sites. It discusses processes used to develop cleanup levels and presents
case studies from 12 selected sites to demonstrate variations in the decision-making
framework and basis (April 2002, 111 pages). View or download at http://www.itrcweb.org/user/RAD-2.pdf
Guide for Characterization of Sites Contaminated with Energetic Materials
(ERDC/CRREL TR-02-1). This document was published by the Army Corps of Engineers
TechDirect: June 1, 2002
1 of 3
clu-in.ora/newsletters

-------
Cold Regions Research Engineering Laboratory. This guide serves as a reference for
future sampling campaigns on sites potentially contaminated with explosives. The
characterization of training and firing ranges, demolition, and open burning/open
detonation ranges will allow assessment of the environmental impacts of these various
operational activities. The guide discusses the major issues involved with the
characterization of explosives materials in the main body of the text and uses appendixes
to provide more detailed descriptions of the procedures and methodologies currently
recommended for these tasks (February 2002, 58 pages). View or download
http://www.crrel.usace.army.mil/techpub/CRREL_Reports/reports/TR02-1 (ERDC-CRL).pdf
Identifying Critical Parameters for the J&E Vapor Pathway Model. The Johnson and
Ettinger (1991) Vapor Intrusion Model is the most widely used set of algorithms for
assessing the intrusion of chemical vapors to enclosed spaces. A new report explains the
relationship between model inputs and outputs so that users can identify critical inputs.
The report contains a brief overview of the J&E (1991) model, including differences
between it and the EPA's J&E model spreadsheets. Eight primary model inputs are
highlighted and a flowchart-based approach for identifying critical model inputs is
presented. Reasonable ranges of model inputs are discussed. Finally, use of the flowchart
is illustrated with case examples. The report can be downloaded for free at:
http://www.api.ora/bulletins .
Technology Evaluation Report: Fracturing Technologies to Enhance Site
Remediation (TE-02-02). This report was authored by Dr. John Schuring, New Jersey
Institute of Technology, for the Ground Water Remediation Technologies Analysis Center
(GWRTAC). The document covers the three general categories of fracturing technologies,
including pneumatic, hydraulic, and blast fracturing, for enhancement of site remediation.
The use of fracturing to introduce various liquid and granular supplements that are
beneficial to remediation is discussed, as well as the use of fracturing in improving
remediation performance by increasing effective permeability. This report is companion to
the GWRTAC status report on fracturing technologies, and further analyzes case studies
originally presented in the status report. In addition to providing descriptions of the three
fracturing technologies, this document discusses their benefits and restrictions,
application, integrated technologies, modeling, regulatory issues, and technology results,
status, cost, and commercial vendors. (April 2002, 52 pages). View or download at
http://www.awrtac.ora/pdf/frac e 2002.pdf .
The Superfund Public Information System (SPIS) Compact Disc contains abstracts for
and the full texts of Records of Decision (RODs), ROD Amendments, and Explanations of
Significant Differences (ESDs) issued from 1982 through 2001. Produced in PDF format
and updated quarterly, the first quarter FY 2002 release of the SPIS CD will contain
almost 2,500 documents, including over 65 signed in fiscal years 2000 and 2001. To order
the free CD, see http://www.epa.aov/superfund/sites/phonefax/descript/spiscd.htm .
ITRC Quarterly Update. This quarterly newsletter highlights the progress and activiteis of
the ITRC and all of its teams (March 2002, 8 pages). View or download at
http://www. itrcwe b.oro/l TRC0302Update.pdf .
Upcoming Live Webcasts
TechDirect: June 1, 2002
2 of 3
clu-in.ora/newsletters

-------
ITRC Permeable Reactive Barriers for Chlorinated Solvent, Inorganic, and
Radionuclide Contamination - June 11. The Interstate Technology and Regulatory
Council (ITRC) training focuses on the basic information one needs to determine and
document the conditions necessary to effectively apply a permeable reactive barrier to a
contaminated zone to be an effective part of remediating chlorinated solvents,
radionuclides and other inorganic compounds in ground water. It provides a framework,
that is, how to think about permeable reactive barriers based on science. For more
information and to register, see http://www.itrcweb.org Of http://clu-in.org/studio .
ITRC Advanced Techniques on Installation of Iron Based Permeable Reactive
Barriers and Non-Iron Based Barrier Treatment Material - June 13. This ITRC seminar
uses case studies to describe long-term performance of iron-based systems and details
how to design them according to the heterogeneities of the subsurface. New construction
techniques for excavation and wall emplacement have improved dramatically and the
attention to barrier construction is as critical as is performance monitoring. It also
describes non-iron barrier systems, the material most commonly used and the
mechanisms encouraging a reduction in contaminant concentrations within the systems.
For more information and to register, see http://www.itrcweb.org Of http://clu-in.org/studio .
ITRC Enhanced In Situ Bioremediation of Solvents in Ground Water - June 18. The
training focuses on a variety of amendments, which may be added to in situ
bioremediation systems, the mechanism of delivery and regulatory issues associated with
approving or permitting EISB systems. It will also cover common problems encountered
during operation of a system. For more information and to register, seehttn://www.itrcwRh.om or
http://clu-in.org/studio .
Conferences and Symposia
ConSoil 2003. Call for Abstracts. The conference is organized by Forschungszentrum
Karlsruhe (FZK) and the Netherlands Organization for Applied Scientific Research (TNO),
in cooperation with the Public Waste Agency of Flanders (OVAM). It is supported by
governments and agencies from Germany, The Netherlands and other countries. Deadline
for abstract submittal is July 15, 2002. For more information on conference themes and
abstract formats, see http://www.consoil.de/consoil/call.html .
WTQA 2002, August 11-15, Arlington, VA. The theme for this year's Waste Testing and
Quality Assurance conference is Sound Science Through Effective Project Planning. This
is the most important conference of the year if you are involved in procuring, generating,
or using environmental analytical data. Conference will include sessions on pesticide
monitoring, electronic data management and reporting, states issues, and new short
courses and workshops. See http://www.wtga.org for agenda and logistics information.
If you have any questions regarding TechDirect, contact Jeff
Heimerman at (703) 603-7191 orhRimRrman.teff@Rna.gov. Remember, you
may subscribe, unsubscribe or change your subscription address at
http://clu-in.org/techd ret at any time night or day.
TechDirect: June 1, 2002
3 of 3
clu-in.ora/newsletters

-------