US EPA TechDirect, October 1, 2005
Welcome to TechDirect!  Since the September 1 message,   
TechDirect gained 278 new subscribers for a total of 23,151.  If   
you feel the service is valuable, please share TechDirect with your   
colleagues.  Anyone interested in subscribing may do so on CLU-IN at .  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, 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   
Superfund En Espanol.  A mediados de septiembre, la Agencia de   
Proteccion Ambiental de los Estados Unidos lanzo una nueva   
pagina Web en espanol, Superfund en Espanol, que le ofrece a la   
comunidad hispana una amplia variedad de informacion   
relacionada al Programa de Superfund.  La nueva pagina Web   
describe diferentes tecnologias usadas frecuentemente en los sitios   
de Superfund, tales como sistemas de bombeo y tratamiento,   
extraccion de vapores del suelo, cobertura de vertederos, y otros.   
La pagina contiene documentos en espanol que describen el   
proceso de restauracion y los metodos de la limpieza, un glosario   
bilingue de terminos comunes usados en el programa de Superfund   
de la EPA, y en la pagina de Preguntas Frecuentes presenta mas de   
cien preguntas y respuestas con amplia informacion relacionada a   
las distintas areas del programa.  Ademas contiene documentos en   
espanol relacionados al programa de Relaciones y Ayuda a la   
Comunidad, incluyendo el Programa de Donaciones de Asistencia   
Tecnica.  A traves de esta p gina Web, la EPA espera proveer a la   
comunidad hispana la informacion y herramientas necesarias que   
les permitiran participar significativamente en el proceso de   
limpieza del programa de Superfund.  Para mas informacion visite   
Superfund en Espanol en el siguiente enlace: ... .   
Internet Seminars   
Seminar News - Many of you know that we routinely place   
seminars in the CLU-IN Studio archive after they have aired.  This   
provides access to the slides and the audio file for each   
presentation.  Some of you requested that we make these audio   
files more portable.  Now we have done that.  For more recent   
seminars, you now have the option to download them in MP3   
format which will allow you to listen via portable music players.   
You may also subscribe to our podcast feed, which will alert you   
when new seminar archives are available.  For more information,   
see .   
Webcast: 25 Years of Contaminated Land Management -   
Achievements and Work Still to Be Done. Live from ConSoil in   
Bordeaux, France, October 4, 2005.  This webcast includes two   
panels with four speakers each. Panel 1 is titled Shifts in   
Contaminated Site Management in the EU and US and offers   
insight to changes in the US and Europe to contaminated site   
management over the past 25 years, and insight into future   
directions.   Panel 2 is titled, From Site Screening to   
Redevelopment, Progress in Every Step. Presentations in this panel   
review major breakthroughs and their value going forward.   
Registration is required for each panel at .   
ITRC Permeable Reactive Barriers: Lessons Learned and New   
Directions - October 6.   This training presents updated   
information regarding new developments, innovative approaches,   
and lessons learned in the application of PRBs to treat a variety of   
groundwater contaminants. The information will be presented by   
reviewing the approaches and results at several sites where PRBs   
have been deployed.  The training is based on the ITRC guidance   
document titled Permeable Reactive Barriers: Lessons Learned /   
New Directions (PRB-4, 2005).  For more information and to   
register, see  or   
ITRC Guidance for Characterization, Design Construction   
and Monitoring of Mitigation Wetlands - October 11.  This   
seminar is the second in a series of wetland trainings beginning   
with the ITRC Technical and Regulatory Guidance Document for   
Constructed Treatment Wetlands (December 2003, WTLND-1).   
To improve the success of wetland mitigation projects, this training   
presents comprehensive guidance for regulators, environmental   
professionals, or owners to use to understand, characterize, design,   
construct, and monitor mitigation wetlands.  To register, see or .   
ITRC Strategies for Monitoring the Performance of DNAPL   
Source Zone Remedies - October 20.  This training discusses   
issues surrounding the assessment of remediation performance at   
DNAPL sites where the source zone is being targeted for treatment.   
It is based on the ITRC document titled, Strategies for Monitoring   
the Performance of DNAPL Source Zone Remedies. Specific   
issues dealing with monitoring the performance of various DNAPL   
source zone remediation technologies are discussed.   Elements of   
a robust performance monitoring program are described including   
the need to establish appropriate performance goals and metrics   
well in advance.  To register, see or .   
Enhanced Remediation of DNAPL-Contaminated Subsurface   
Systems - October 26.  This the third in a series of events   
sponsored by the NIEHS Superfund Basic Research Program on   
dense nonaqueous phase liquids (DNAPLs).  Dr. Casey Miller, of   
the University of North Carolina-Chapel Hill, will present the work   
of his research group.  Remediation of subsurface systems   
contaminated with DNAPLs remains as one of the most difficult   
open issues facing Superfund.  Dr. Miller will examine the   
physicochemical reasons why this is so and summarize the   
challenges facing conventional remediation approaches.  He will   
discuss an evolving class of remediation methods based upon the   
use of dense brine solutions to control the movement of DNAPLs.   
Results from one-, two-, and three-dimensional laboratory studies   
in heterogeneous porous medium systems will be presented.  Dr.   
Miller will describe results from a three-stage remediation   
approach that illustrate a high fraction of DNAPL removal from   
complex, heterogeneous, three-dimensional systems. Finally, he   
discuss some open issues and field-scale experimentation that are in   
progress.  To register, see .   
Documents and Web Resources   
Road Map to Understanding Innovative Technology Options   
for Brownfields Investigation and Cleanup, Fourth Edition   
(EPA 542-B-05-001).  This includes new and updated resources to   
assist in identification and selection of innovative site   
characterization and cleanup technologies for brownfields   
redevelopment. The Road Map provides a general outline of the   
steps in the investigation and cleanup of a site slated for   
redevelopment and introduces brownfields stakeholders to the   
range of innovative technology options and resources available to   
them. The Road Map provides valuable information for a wide   
range of stakeholders involved in or affected by redevelopment of   
brownfields sites, whether through public projects, private   
developments, or public-private partnerships. The Fourth Edition   
has been expanded significantly to include new and updated   
resources and supplemental information with 71 new resources and   
one-page descr 
Posted: 15/10/2005 By: Professor Paul Bardos