US EPA TechDirect June 1, 2008
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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  
ConSoil 2008 Special Sessions on Green Remediation (June 5) and   
Brownfields, Bioenergy and Biofeedstocks (June 6). EPA is   
collaborating with the European Groundwater and Contaminated   
Land Information Portal to bring to you live, via Webcast, two   
90-minute special sessions on sustainability and contaminated   
site cleanup. These sessions are being held at the 2008 ConSoil   
Conference in Milan, Italy. The sessions link two important   
emerging themes for contaminated land management, both connected   
with improving its sustainability and reducing its cost. The   
first theme is the integration of land management of large areas   
with re-use for non-food crops, ecosystem recovery and revenue   
generation. The second theme is what is termed 'green   
remediation,' which maximizes the net environmental benefit of   
contaminated land remediation techniques. For more information   
and to register, see .  
ITRC Performance-based Environmental Management - June 5.   
Performance-based environmental management (PBEM) is a   
strategic, goal-oriented methodology that is implemented through   
effective planning and decision logic to reach a desired end   
state of site cleanup. The goal of PBEM is to be protective of   
human health and the environment while efficiently implementing   
appropriate streamlined cleanup processes. This ITRC training   
presents an overview of what PBEM is, explains how and when to   
implement it, and describes the issues that regulators are   
concerned about throughout PBEM's implementation. Case studies   
will be presented to illustrate successful PBEM projects. The   
course is valuable not only because PBEM is being proposed and   
implemented at many federal and private sites throughout the   
country, but also because PBEM provides an opportunity to   
enhance all site remediation. For more information and to   
register, see or   
Bioavailability of Organic Compounds: Methods and Case Studies -   
June 11. The Superfund Basic Research Program (SBRP), in   
collaboration with the Environmental Protection Agency (EPA)   
Technology Innovation Program, presents 'Bioavailability of   
Organic Compounds: Methods and Case Studies'. Dr. Edward   
Neuhauser, Principal Environmental Engineer, National Grid, will   
present a PAH measurement method, the Solid-Phase   
Microextraction (SPME) method, that actually measures the true   
bioavailability of PAH's in sediments. The SPME method does not   
measure the total amount of PAH's present in a sediment sample,   
but rather only that fraction of PAH's in sediments that are   
actually present in sediment pore water and are available to   
benthic organisms. Dr. Danny Reible, the Bettie Margaret Smith   
Chair of Environmental Health Engineering at the University of   
Texas, will focus on efforts to understand and quantify exposure   
and risk to contaminants in sediments, including access to those   
contaminants, the extent to which accessible contaminants are   
bioavailable and the extent to which contaminants accumulate in   
organisms of interest. For more information and to register, see .  
ITRC Perchlorate Remediation Technologies - June 12. This   
training introduces state regulators, environmental consultants,   
site owners, and community stakeholders to Remediation   
Technologies for Perchlorate Contamination in Water and Soil   
(PERC-2, 2008), created by ITRC's Perchlorate Team to assist   
reviewers in assessing the adequacy of perchlorate remediation   
projects. This course gives the student a background in the   
available remediation technologies to treat perchlorate   
contamination, discusses emerging technologies, and presents   
case studies of applications. For more information and to   
register, see or   
Use of Bioavailability Information at Hazardous Waste Sites -   
June 18. The Superfund Basic Research Program (SBRP), in   
collaboration with the Environmental Protection Agency (EPA)   
Technology Innovation Program, presents 'Use of Bioavailability   
Information at Hazardous Waste Sites'. Dr. Mike Beringer, U.S.   
EPA Region VII toxicologist, will summarize EPA's 'Guidance for   
Evaluating the Bioavailability of Metals in Soils for Use in   
Human Health Risk Assessment' and the basis for the Office of   
Superfund Remediation and Technology Innovation's decision   
regarding the two methodologies for predicting lead relative   
bioavailability in 'Estimation of Relative Bioavailability of   
Lead in Soil and Soil-like Materials Using In Vivo and In Vitro   
Methods.' Dr. Mark Maddaloni, U.S. EPA Region II toxicologist,   
will present a case study for using bioavailability data to   
inform and refine site specific risk assessments at a RCRA   
Corrective Action site with arsenic-contaminated soil. For more   
information and to register, see .  
ITRC An Overview of Direct-push Well Technology for Long-term   
Groundwater Monitoring - June 19. Direct-push wells have been   
used for temporary groundwater monitoring purposes for many   
years but are generally prohibited for use as long-term   
groundwater monitoring wells. Recent research indicates that   
direct-push wells are as well suited for long-term environmental   
groundwater monitoring purposes as conventionally constructed   
wells. This training introduces ITRC's The Use of Direct-push   
Well Technology for Long-term Environmental Monitoring in   
Groundwater Investigations (SCM-2, 2006), provides a background   
in the principles of direct-push wells, and presents the state   
of the art regarding recent research. For more information and   
to register, see or .  
ITRC Enhanced Attenuation of Chlorinated Solvents: A Site   
Management Tool - June 26. This training on the Technical and   
Regulatory Guidance for Enhanced Attenuation: Chlorinated   
Organics (EACO-1, 2008) describes the transition (the bridge)   
between aggressive remedial actions and MNA and vice versa.   
Enhanced attenuation (EA) is the application of technologies   
that minimize energy input and are sustainable in order to   
reduce contaminant loading and/or increase the attenuation   
capacity of a contaminated plume to progress sites towards   
established remedial objectives. Contaminant loading and   
attenuation capacity are fundamental to sound decisions for   
remediation of groundwater contamination. This training explains   
how a decision framework which, when followed, allows for a   
smooth transition between more aggressive remedial technologies   
to sustainable remedial alternatives and eventually to Monitored   
Natural Attenuation. This training will demonstrate how this   
decision framework allows regulators and practitioners to   
integrate Enhanced Attenuation into the remedial decision   
process. For more information and to register, see   
Posted: 01/06/2008 By: Professor Paul Bardos