TechDirect April 2007

TechDirect, April 1, 2007

Upcoming Live Internet Seminars
New Documents and Web Resources
Conferences and Symposia

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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 Remediation Process Optimization Advanced Training - April 10.

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

ITRC Characterization, Design, Construction and Monitoring of Bioreactor
Landfills - April 19. Bioreactors are landfills where controlled addition of
non-hazardous liquid wastes, sludges, or water accelerates the decomposition of waste
and landfill gas generation. This training, based on the ITRC's Characterization,

Design, Construction, and Monitoring of Bioreactor Landfills (ALT-3, 2006), teaches the
principles used to make critical decisions during permitting, operating, and monitoring a
bioreactor landfill. This training also provides a general understanding of the biological
degradation of solid wastes under aerobic and anaerobic waste conditions and the
degradation products associated with each process. For more information and to

Nanotechnology -Superfund Site Remediation - April 19. The Superfund
Basic Research Program (SBRP), in collaboration with the Environmental
Protection Agency (EPA), presents "Nanotechnology - Superfund Site Remediation."
This seminar is part of a series covering the applications and implications of
nanotechnology as it pertains to the National Superfund Program. The use of

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nanoscale materials (particles of matter < 100 nm) shows promise for improving the
efficiency of current groundwater remediation approaches. Compared to microscale
zero-valent iron, nanoscale zero-valent iron (or NZVI) has a higher reactivity for treating
chlorinated solvents and may allow for more cost-effective delivery options. Marti Otto,
Environmental Engineer (U.S. EPAs Office of Superfund Remediation and
Technology Innovation), will describe field-scale and full-scale applications of NZVI.
The talk will include background on the use of NZVI to address source areas in
groundwater contaminated with chlorinated hydrocarbons focusing on the results of
four study sites. Mary Logan, Remedial Project Manager (EPA Region 5), will report on
the considerations that led to the selection of NZVI for the Nease Chemical Superfund
Site in Ohio. In September 2005, U.S. EPA selected NZVI as a remedy for volatile
organic compounds (VOCs) in bedrock groundwater, particularly for the highly
contaminated plume core. The remedy allows NZVI to be coupled with enhanced
biological treatment if the iron alone is not sufficient to treat recalcitrant compounds. For
more information and to register, see http://ciu-in.ora/studio .

ITRC Planning and Promoting of Ecological Land Reuse of Remediated
Sites - April 24. This training is based on the ITRC Technical and Regulatory
Guideline: Planning and Promoting Ecological Land Reuse of Remediated Sites
(ECO-2, 2006). The document presents a process to promote ecological land reuse
activities considering natural or green technologies instead of more traditional
remedies. The guidance demonstrates that natural or ecological end-uses are valuable
alternatives to conventional property development or redevelopment. Ecological
benefits and a process for calculating their value are included in the guidance and
reviewed in this training. For more information and to register, see http://www.itrcweb.ora or

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

ITRC Evaluating, Optimizing, or Ending Post-Closure Care at Municipal
Solid Waste Landfills - April 26. This training, based on ITRC's Technical and
Regulatory Guidance: Evaluating, Optimizing, or Ending Post-Closure Care at
Municipal Solid Waste Landfills Based on Site-Specific Data Evaluations (ALT-4, 2006),
describes a method to evaluate the performance of Post Closure Care at a landfill and
determine when leachate recovery, landfill gas management, groundwater monitoring,
and cap maintenance can be reduced or even ended based on threats (to human
health and the environment) posed by the closed landfill. The training and document
describe custodial care as those requirements the property owner must follow after post
closure care has been ended. For more information and to register, see

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

Understanding and Reconstructing Soil Conditions at Remediation Sites -

May 2. Effective in situ rehabilitation of drastically disturbed and/or
contaminated sites is usually dependent upon understanding and modifying on-site soil
conditions to support revegetation efforts. While site-specific characterization of soil
conditions is essential to the development of any revegetation strategy, limitations
posed by reactive sulfides and very low pH, excess soil compaction, and excess salinity
are dominant and widespread problems on disturbed sites. This seminar will focus on
essential steps and procedures for (A) characterizing limiting soil conditions, (B)
ameliorating soil phytotoxicity, and (C) reconstructing viable and productive soil profiles
for long-term rehabilitation. The importance of matching remediated soil conditions to
the intended vegetative community will be emphasized via discussion of case study
sites including metal contaminated sites, acid-sulfate spoils, and forested wetlands
restoration. For more information and to register, see http://ciu-in.ora/studio .

> New Documents and Web Resources

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Technology News and Trends (EPA 542-N-06-008). This issue of
Technology News and Trends highlights strategies and tools for characterizing
or monitoring remediation of sites with contaminated sediment and surface water
bodies. Addressing these sites often relies upon dynamic workplans that involve more
efficient, cost-effective, and practical methods for field work (March 2007, 6 pages).

View Or download at httn://clu-in.om/technuhs.htm .

Updating Remedy Decisions at Select Superfund Sites - Summary Report
FY 2004 and FY 2005 (EPA-540-R-06-074). This is the fifth in a series of
two-year reports which summarize the progress made through implementation of the
Superfund Administrative Reform. Since this reform was announced on October 5,
1995, the Superfund program has continuously tracked national progress from
updating remedies. This summary report shows that in FY04 and FY05, EPA updated
more than 130 remedies, reducing estimated future cleanup costs by more than $260
million (February 2007, 83 pages). View or download this report, as well as the four

previOUS summary reports, from httn://www.ena.aov/sunerfunrt/nroarams/reforms/rtocs.htm .

New CLU-IN Software and Tools Area. A new software and tools section has
been posted to CLU-IN. This new area offers information on individual software
packages and online tools to assist visitors as well as links to other sources of free
software and tools. We are also interested in additional software packages you would
like us add to this area. See httn://www.du-in.om/software for a list of resources and our
suggestion form.

Comparison of Geoprobe^ PRT and AMS GVP Soil-Gas Sampling
Systems with Dedicated Vapor Probes in Sandy Soils at the Raymark
Superfund Site (EPA 600-R-06-111). This U.S. EPA study compared results of
soil-gas sampling using dedicated vapor probes, a truck-mounted direct-push technique
- the Geoprobe Post-Run-Tubing (PRT) system, and a hand-held rotary hammer
technique - the AMS Gas Vapor Probe (GVP) kit. A comparison of VOC concentrations
using dedicated vapor probes and the GVP sampling kit indicated that the two methods
provided similar results. For practical purposes, all three sample systems can be
considered approximately equivalent (November 2006, 79 pages). View or download at

httn://www.ena.aov/arta/rtownloart/renorts/600R06111/600R06111 ndf . FOT hard COpieS, COntaCt SUSan

Sexton at (580) 436-8502 or fax (580) 436-8503 or send an email tonwerd nuh@ena.nnv.

Protocol for Use of Five Passive Samplers to Sample for a Variety of
Contaminants in Groundwater (DSP-5). This report was produced by the
Interstate Technology and Regulatory Council (ITRC). This guidance contains protocols
for five passive sampling technologies. Passive sampling is synonymous with
no-purge sampling. The technologies included in this document include Snap
Sampler" and Hydrasleeve" (grab-type well water samplers); regenerated-cellulose
dialysis membrane sampler and rigid, porous polyethylene sampler
(diffusion/equilibrium-type samplers), and GORE" Module (a diffusion and
sorptiontype sampler). These three categories or types of passive samplers are
described in detail in the precursor to this document, Technology Overview of Passive
Sampler Technologies (DSP-4, ITRC 2006). The intent of the current document is to
provide a sound guidance on how to properly deploy and collect samples using passive
devices (February 2007, 121 pages). View or download at

httn://v.AA;w.itrcweb.ora/Documents/DSP-5.ndf . TO request 3 hard COpy, See

http://www.itrcweb.ora/Droduct reauest.asp?DOCID=DSP-1&ACT=add .

Evaluation of the Role of Dehalococcoides Organisms in the Natural
Attenuation of Chlorinated Ethylenes in Ground Water (EPA
600-R-06-029). This report was produced by the U.S. EPA Office of Research and

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Development. It is designed for technical staff in the EPA Regions and in state agencies
that require information on the contribution of Dehalococcoides bacteria to MNA of
chlorinated solvents, and information on the proper application and interpretation of the
assays in an evaluation of MNA. This report includes sections on the role of
biotransformation in evaluation of MNA of chlorinated solvents, the ecology of
microorganisms that transform chlorinated solvents, tools to assay microorganisms that
transform chlorinated solvents, the relationship between Dehalococcoides DNA in
ground water and rates of natural attenuation at field scale, the relationship between
geochemical parameters and the occurrence of Dehalococcoides DNA in ground water,
and the relationship Dehalococcoides DNA in ground water and behavior of chlorinated
solvents in laboratory treatability studies or microcosm studies done with water from the
plume (June 2006, 121 pages). View or download at

http://www.epa.aov/ada/download/reports/600R06029/600R06029.pdf .

Microfracture Surface Characterizations: Implications for In Situ Remedial
Methods in Fractured Rock (EPA 600-R-05-121). This report was produced
by the the Bedrock Bioremediation Center (BBC) at the University of New Hampshire
under a cooperative agreement with the U.S. EPA Office of Research and
Development. The focus of the publication is a field research-based program conducted
at Site 32 at the Pease International Tradeport (formerly Pease Air Force Base) in
Portsmouth, NH. The U.S. EPA supports the overall mission of the BBC to (i) examine
whether microbial communities in organically-contaminated bedrock aquifers are
capable of biodegrading the contaminants, (ii) more efficiently and economically
characterize the direction of groundwater flow and fracture patterns (size, direction,
secondary mineralization) in contaminated bedrock aquifers, (iii) improve and develop
new field technologies to control hydraulic and flow conditions in the contaminant zone,
(iv) develop laboratory and field methods to estimate and accelerate in situ rates of
bioremediation of organic contaminants in bedrock aquifers, and (v) to develop and
apply innovative microbial, molecular biology and other advanced techniques to
enhance in situ bioremediation and assess the efficacy of remediation strategies (June
2006, 99 pages). View or download at

http://www.epa.aov/ada/download/reports/600R05121/600R05121 .pdf .

EUGRIS Corner. New Documents on EUGRIS, the platform for European
contaminated soil and water information. See

http://www.euaris.info/DispiavNewsitem.asp?NewsiD=4oo to access important new information from
Europe, including the following documents and web links. Look at the New
RESOURCES section under NEWS. More than 25 new resources, projects and news
items were added to EUGRIS in March 2007. These include:

European Union Strategic Framework 7 Environmental Technologies Info
Day Session. This link provides access to all the presentations from an EU
event held in January 2007.The major intention of the event held in Brussels was to
provide detailed information about the various topics identified in the first call for
proposals under FP7.The program provided an overview of the research themes and
administrative procedures. It also had four parallel sessions on 1) Water and Soil
technologies; 2) Waste and Clean Processes; 3) Built Environment and Cultural
Heritage; and 4) Risk assessment of chemicals and alternative strategies for testing.

For access to the presentations and concluding remarks, see

http://www,cluin,ora/envirotechinfodav/.

The Urban Environment. This report was published by the Royal Commission
on Environmental Pollution United Kingdom. It identifies 4 priority themes:
sustainable urban transport; sustainable urban management (Local Agenda 21, EMAS,
indicators); sustainable urban construction (resource and energy efficiency, demolition
waste, design issues); and sustainable urban design, including land use-regeneration,
brown field sites, urban sprawl, land use densities (March 2007, 232 pages). View or

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download at http://www.rcep.ora.uk/urban/report/urban-environment.pdf .

After Minerals Website. This website was developed by the UK Royal Society
for the Protection of Birds. They offer it as a resource for everyone with an
interest in quarry restoration. Minerals sites offer an opportunity to create important
habitats on a huge scale, benefiting wildlife and providing people with wonderful places
to enjoy. The website includes: case studies; habitat advice and a mapping tool. See

http://www.afterminerals.com .

> Conferences and Symposia

2007 Community Involvement Conference and Training, Jacksonville,

June 19-22. This EPA conference brings together public participation and
community involvement professionals from EPA and its federal, state, tribal, and local
partners. The theme of this conference is Community Involvement: Celebrating the
Past, Looking to the Future. It will celebrate the successes of the past ten years and
also explore forward-looking, innovative approaches for government to interact with
communities to promote the protection and sustainability of the environment. The
conference will include several plenary sessions and dozens of engaging and
interactive concurrent sessions. It also will feature field trips, exhibits, a poster session,
evening activities, and many networking opportunities. Several four- and eight-hour
post-conference training workshops will be offered. 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.
Currently there are 146 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)
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