US EPA TechDirect, March 1, 2007
Welcome to TechDirect! The March TechDirect kicks off the 11th   
year of service. Since the February 1 message, TechDirect gained  
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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 Real-Time Measurement of Radionuclides in Soil - March 6.   
This training introduces state regulators, environmental   
consultants, site owners, and community stakeholders to ITRC's   
Technology Overview document: Real-Time Measurement of   
Radionuclides in Soil: Technology and Case Studies (RAD-4,   
2006), created by ITRC's Radionuclides Team. This training   
provides information on the basics of real-time measurement   
systems, how the technologies and data are used, acceptance   
issues, and case studies. For more information and to register,   
see or .  
Use of SADA for Spatial Analysis - March 9. Spatial Analysis and   
Decision Assistance (SADA; is   
evolving freeware that incorporates tools from environmental   
assessment fields into an effective problem-solving environment.   
Robert Stewart, who leads the development of the software at the   
University of Tennessee, will focus this discussion on using   
SADA for spatial analysis. This seminar goes beyond the general   
SADA CLU-IN seminar (archived at: ... to show the   
specific capabilities of SADA for making decisions using   
correlation, interpolation, and probability; and the caveats for   
using these methods at hazardous waste sites. For more   
information and to register, see .   
Nanotechnology - DNAPL Remediation - March 15. The Superfund   
Basic Research Program (SBRP), in collaboration with the   
Environmental Protection Agency (EPA), presents 'Nanotechnology   
- DNAPL Remediation.' In the last decade, the potential to use   
nanoparticles (particles <100nm in size) for environmental   
remediation has attracted much attention, particularly to   
address the challenging scenarios encountered with Dense   
Non-Aqueous Phase Liquid (DNAPL) contamination. This seminar   
will explore both the theoretical potential and practical   
challenges associated with the application of nanoscale   
particles for in situ remediation of DNAPLs. Matt Hull (Luna   
Innovations, Inc.) and Peter Vikesland (Virginia Tech) will   
present 'Magnetite Nanoparticles for Remediation of Contaminated   
Groundwater.' As part of their EPA SBIR collaboration, they   
have developed stabilized suspensions of nanoscale magnetite   
(Fe3O4) particles for the remediation of groundwater   
contaminated with carbon tetrachloride (CT). Greg Lowry   
(Carnegie Mellon University) will present 'Functionalized   
Reactive Nanoscale Fe0 (NZVI) for in situ DNAPL Remediation:   
Opportunities and Challenges.' Dr. Lowry will discuss the   
potential of surface-functionalized reactive Fe0 nanoparticles   
(NZVI) to overcome some of the challenges of DNAPL remediation.   
This is the third seminar in the Risk-e-Learning Series   
'Nanotechnology - Applications and Implications for Superfund.'   
For more information and to register, see .   
ITRC Risk Assessment and Risk Management: Determination and   
Application of Risk-Based Values  March 27. 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 or .   
New Documents and Web Resources  
FP7: Tomorrow's Answers Start Today. This document was produced   
by the European Commission. FP7 is the short name for the   
Seventh Framework Programme for Research and Technological   
Development. This is the EU's main instrument for funding   
research in Europe and it will run from 2007 to 2013. The EC   
budget for the next seven years is 50.5 billion euros and the   
Euratom budget for the next five years is 2.7 billion euros.   
FP7 is also designed to respond to Europe's employment needs and   
competitiveness. The EU Framework Program 7 does envision   
collaboration on research and technology development between the   
EU and other nations. FP7 covers areas such as environment   
(including climate change), nanotechnology, renewable energy,   
and environmental technology verification and testing (2007, 32   
pages). View or download at .  
Nanotechnology White Paper (EPA 100-B-07-001). Nanotechnology   
presents new opportunities to improve how we measure, monitor,   
manage and minimize contaminants in the environment. New   
generations of nanomaterials will evolve and with them new and   
possibly unforeseen environmental issues. The purpose of this   
White Paper is to inform EPA management of the science issues   
and needs associated with nanotechnology, to support related EPA   
program office needs, and to communicate these nanotechnology   
science issues to stakeholders and the public (February 2007,   
132 pages). View or download at .  
Emerging Nanotechnologies for Site Remediation and Wastewater   
Treatment. This document was prepared by Katherine Watlington, a   
National Network of Environmental Management Studies (NNEMS)   
grantee, under a fellowship from the U.S. Environmental   
Protection Agency. This paper seeks to provide a holistic view   
of the state of the science of nanotechnology. Both the   
commercialized nanotechnology products and many of the   
technologies being researched in academia are discussed.   
Attention is given both to the research itself as well as the   
remedial capabilities. The toxicity and safety concerns of the   
individual technologies are also briefly outlined as are the   
overall toxicity concerns related more generally to the field of   
nanotechnology. Finally the current state of regulation is   
addressed (August 2005, 55 pages). View or download at  
Innovations in Site Characterization Case Study: The Role of a   
Conceptual Site Model for Expedited Site Characterization Using   
the Triad Approach at the Poudre River Site, Fort Collins,   
Colorado (EPA 542-R-06-007). This case study examines how   
systematic planning, an evolving conceptual site model (CSM),   
dynamic work strategies, and real time measurement technologies   
can be used to unravel complex contaminant distribution patterns   
and design a remedy at the Cache La Poudre (Poudre) River site.   
The investigation and design of the remedy in 
Posted: 06/03/2007 By: Professor Paul Bardos