US EPA TechDirect June 1, 2011
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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  
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TechDirect audience.  
Upcoming Live Internet Seminars  
ITRC LNAPL Training Parts 1, 2, and 3 - June 7, 14, and 21,  
2011. 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 or .  
Conducting Contamination Assessment at Drycleaning Sites - June  
8, 2011, 1:00PM-3:30PM EDT (17:00-19:30 GMT). The State  
Coalition for Remediation of Drycleaners (SCRD) is a forum of  
state environmental agencies designed to exchange information  
and facilitate discussion of drycleaner remediation issues. In  
this training, SCRD members will present information from a  
recently updated guidance document on conducting contamination  
assessment work at drycleaning sites. Salient aspects of this  
document will be presented, including: an overview of the  
drycleaning process, chemicals used, waste generation and  
management practices in the drycleaning industry, site  
reconnaissance, identifying sampling locations and environmental  
assessment technologies applied to drycleaning facilities. The  
guidance and internet seminar will help state regulators and  
practitioners identify likely areas of contamination and more  
effectively implement investigation approaches at current and  
former drycleaner facilities. For more information and to  
register, see .  
Gesti?n de Sitios Contaminados en las Am?ricas - June 15, 2011,  
2:00PM-4:00PM EDT (18:00-20:00 GMT). El seminario comenzar? con  
un an?lisis resumido del estado de desarrollo de normativas de  
suelos contaminados en las Am?ricas por parte del Dr. Wini  
Schmidt (ReLASC). A continuaci?n el Dr. Ulises Ruiz, de SEMARNAT  
(M?xico), presentar? con m?s detalle una actualizaci?n de la  
normativa en M?xico. Posteriormente, habr? una presentaci?n  
sobre las tecnolog?as de descontaminaci?n de uso m?s com?n en  
los EE UU por parte del licenciado Carlos Pach?n, del Programa  
Superfund de los EE UU. La ?ltima ponencia la har? el licenciado  
Robert Montgomery, del Banco Mundial, quien presentar? un nuevo  
programa de pr?stamos para proyectos de recuperaci?n de sitios  
contaminados. Finalmente, habr? unos minutos para formular  
preguntas e intercambiar opiniones. Las presentaciones ser?n en  
castellano. Para obtener m?s informaci?n o para inscribirse  
eneste seminario gratuito dirigirse a .  
This internet seminar will be presented in Spanish.  
Bioavailability-Based Remediation of Metals Using Soil  
Amendments: Considerations & Evaluation Techniques - June 22,  
2011, 2:00PM-4:00PM EDT(18:00-20:00 GMT). Attend this session to  
learn about soil contaminant bioavailability-based remediation  
of metal contaminants with soil amendments. You'll learn about  
what we've done and learned and where we need to focus for  
future success. For more information and to register, see .  
ITRC Project Risk Management for Site Remediation - June 23,  
2011, 11:00AM-1:15PM EDT (15:00-17:15 GMT). Remediation Risk  
Management (RRM) is a course of action through which all risks  
related to the remediation processes (site investigations,  
remedy selection, execution, and completion) are holistically  
addressed in order to maximize the certainty in the cleanup  
process to protect human health and the environment. Remediation  
decisions to achieve such a goal should be made based on  
threshold criteria on human health and ecological risks, while  
considering all the other potential project risks. Through this  
training course and associated ITRC Technical and Regulatory  
Guidance Document: Project Risk Management for Site Remediation  
(RRM-1, 2011), the ITRC RRM team presents tools and processes  
that can help the site remediation practitioner anticipate, plan  
for, and mitigate many of the most common obstacles to a  
successful site remediation project. Examples of project risks  
include remediation technology feasibility risks; remedy  
selection risks; remedy construction, operation and monitoring  
risks; remedy performance and operations risks; environmental  
impacts of systems during their operation; worker safety risk,  
human health and ecological impacts due to remedy operation; as  
well as costs and schedules risks including funding and  
contracting issues. For more information and to register, see or .  
New Documents and Web Resources  
Updated CLU-IN Contaminant Focus Area on Persistent Organic  
Pollutants (POPs). EPA has updated the Persistent Organic  
Pollutants (POPs) section on the CLU-IN website  
to...[description to be provided by Michele Mahoney]. View and  
use at .  
Lessons Learned in Detecting, Monitoring, Modeling and  
Remediating Radioactive Ground-Water Contamination. Brookhaven  
National Laboratory (BNL) is a multi-discipline Department of  
Energy (DOE) research institute that has been in operation since  
1947. Historical operations included running accelerators,  
nuclear research reactors, and other large complex equipment.  
Some of these operations caused groundwater contamination. This  
report discusses the tritium plume from the High Flux Beam  
Reactor and several strontium plumes from past operations at the  
Brookhaven Graphite Research Reactor, their discovery through  
monitoring, and their treatment. The tritium plume discovery led  
to public outrage; characterization, design, and implementation  
of a treatment system within 60 days; and eventual dismissal of  
Associated Universities Incorporated from the management of BNL  
despite the small health risk to employees or the public.  
Management of the strontium plume included a major alteration to  
the original regulatory cleanup agreement when field data showed  
the preferred alternative to be economically 
Posted: 02/06/2011 By: Professor Paul Bardos