Welcome to TechDirect! Since the July 1 message, TechDirect  
gained 240 new subscribers for a total of 35,983. 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://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.  
  
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.  
  
Special Announcements  
  
Six Open Positions Supporting EPA. The following employment  
opportunities, which may of interest to hazardous waste  
professionals, are being advertised as a public service for the  
CLU-IN audience: (1) Two Environmental Scientists with EPA's  
Technology Innovation and Field Services Division, Analytical  
Services Branch in Arlington, VA; (2) One Research Hydrologist  
with EPA's Office of Research and Development in Ada, OK; (3)  
Two Senior Environmental Employee (SEE) Program Positions with  
EPA's Contract Laboratory Program in Arlington, VA and (4) One  
Senior Environmental Employee (SEE) Program Position with EPA's  
Environmental Response Team in Erlanger, Kentucky. For more  
information and application instructions, see  
http://www.clu-in.org/jobs/ .  
  
  
EPA Solicits Innovative Ideas and Technological Solutions for  
Enbridge Oil Spill. EPA has developed a voluntary submittal  
process to allow for faster review of the suggestions being  
offered and to provide guidance regarding what information would  
be most useful to the reviewing officials. The information  
received through this voluntary submittal process will be  
scrutinized for innovative ideas and technological solutions  
that are safe for the environment and public health and can be  
deployed along the Kalamazoo River to help with cleanup. The  
information submitted will be forwarded to the appropriate  
reviewing official who will contact submitters, if necessary.  
For more information or to submit a technical solution, go to  
the EPA Enbridge Oil Spill web site at  
http://www.epa.gov/enbridgespill/techn ... .  
  
  
Upcoming Live Internet Seminars  
  
ITRC LNAPL Training Parts 1, 2, and 3 - August 3, 10, and 17,  
2010. Light non-aqueous phase liquids (LNAPLs) are organic  
liquids such as gasoline, diesel, and other petroleum  
hydrocarbon products that are immiscible with water and less  
dense than water. LNAPLs are important because they are present  
in the subsurface at thousands of remediation sites across the  
country, and are frequently the focus of assessment and  
remediation efforts. Part 1 of this training course explains how  
LNAPLs behave in the subsurface and examines what controls their  
behavior. Part 1 also explains what LNAPL data can tell you  
about the LNAPL and site conditions. Relevant and practical  
examples are used to illustrate key concepts. Part 2 addresses  
LNAPL characterization and site conceptual model development as  
well as LNAPL recovery evaluation and remedial considerations.  
Specifically, Part 2 discusses key LNAPL and site data, when and  
why those data may be important, and how to get those data. Part  
2 also discusses how to evaluate LNAPL recoverability. Part 3  
uses the LNAPL conceptual site model (LCSM) approach to identify  
the LNAPL concerns or risks and set proper LNAPL remedial  
objectives and technology-specific remediation goals and  
performance metrics. Part 3 also provides an overview of the  
LNAPL remedial technology selection framework. For more  
information and to register, see http://www.itrcweb.org or  
http://clu-in.org/live .  
  
The Charrette: Redevelopment by Design - August 11, 2010,  
2:00PM-3:30PM EDT (18:00-19:30 GMT). A Charrette uses pictures  
and mapping tools to develop innovative, sustainable plans for  
revitalization. Traditional planning and negotiation efforts can  
be stymied by the complex issues and divergent perspectives,  
leaving all parties frustrated. These collaborative workshops  
help participants visually understand the complexities of land  
re-use and revitalization. They have made a difference across  
the country by moving the affected stakeholders from negative  
approaches to positive plans for the future. This training will  
help EPA employees explore the use of Charrettes for  
collaborative redevelopment of Superfund sites. For more  
information and to register, see http://clu-in.org/live .  
  
Identifying & Evaluating Ecosystem Services at Contaminated  
Sites Prior to Remediation - August 18, 2010, 3:00PM-4:30PM EDT  
(19:00-20:30 GMT). Green remediation is the practice of  
considering all environmental effects of remedy implementation  
and incorporating options to maximize net environmental benefits  
of cleanup actions at contaminated sites. One of the core  
elements of green remediation is land & ecosystems, which  
promotes ideas of land management and ecosystem protection.  
There is a growing recognition of the significance of ecosystem  
services, as well as the dramatic impacts human activities can  
have on these essential services. Ecosystem services are the  
benefits that human populations derive from ecosystems.  
Examples include erosion control, climate regulation,  
recreational opportunities and raw materials. There is a unique  
opportunity to mitigate impacts on ecosystem services, which may  
occur from the remediation of contaminated sites. Learn more  
about ecosystem services, opportunities to mitigate impacts on  
ecosystem services at a site level, and much more during this  
seminar brought to you by Sarah Slack, a NNEMS fellow at the  
EPA. For more information and to register, see  
http://clu-in.org/live .  
  
PAH and PCB Toxicity and Adaptation - Lessons Learned from  
Chronically Exposed Wild Populations - August 19, 2010,  
2:00PM-4:00PM EDT (18:00-20:00 GMT). This seminar will feature  
Dr. Mark E. Hahn of Woods Hole Oceanographic Institution and Dr.  
Richard T. Di Giulio, Director of Duke University's Integrated  
Toxicology Program. Dr. Hahn will describe research to  
understand the role of aryl hydrocarbon receptors (AHRs) and AHR  
variants in the mechanism of resistance to PCBs that has evolved  
in Atlantic killifish (Fundulus heteroclitus) inhabiting the New  
Bedford Harbor (MA) superfund site. Other studies that address  
the role of AHRs as biomarkers of susceptibility and resistance  
will be discussed. Dr. Di Giulio will describe studies  
addressing mechanisms underlying the marked resistance to PAH  
toxicity displayed by a population of Atlantic killifish  
(Fundulus heteroclitus) inhabiting a PAH contaminated estuary  
adjacent to the Atlantic Woods Industries Superfund site in  
Virginia. These studies subsequently motivated additional  
studies that will be described that examined the unanticipated  
phenomenon of synergisitc toxicity between certain PAHs. These  
latter studies included both the killifish and the zebrafish as  
models. For more information and to register, see  
http://clu-in.org/live .  
  
Understanding the FY11 Job Training Grant Application Guidelines  
- August 30, 2010, 2:00PM-4:00PM EDT (18:00-20:00 GMT). This  
seminar will provide an overview of the FY11 application  
guidelines for the Environmental Workforce Development and Job  
Training Grants - formerly known as the 'Brownfields Job  
Training Grants,' and is specifically geared towards tribal,  
tribal and minority academic institution applicants (however,  
anyone is free to attend). See the second session on September 2  
for other a