TECH DIRECT News from the US EPA - August 2004
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The purpose of TechDirect is to identify new technical, policy and  
guidance resources related to the assessment and remediation of  
contaminated soil 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 Internet Seminars  
ITRC Radiation Risk Assessment: Updates and Tools, August 5.  
This training clarifies the variations between the dose approach  
used at some sites and EPA's risk-based approach.  It also  
elaborates on the methodology used to develop risk-based  
remediation goals.  For more information and to register, see or .  
ITRC Characterization and Remediation of Soils at Small  
Arms Firing Ranges, August 10.  This seminar introduces the  
participants to the various physical (including hydraulic), chemical,  
and biochemical mechanisms available to treat or stabilize SAFRs  
after some unique characterization challenges are overcome.  This  
training is based on the ITRC document entitled: Technical &  
Regulatory Guidance Document for Small Arms Firing Range  
Remediation Technologies.  For more information and to register,  
see or  
ITRC Systematic Approach to In Situ Bioremediation:  
Nitrates, Carbon Tetrachloride, and Perchlorate, September 2.  
This training presents a decision tree for reviewing, planning,  
evaluating, and approving in situ bioremediation (ISB) systems in  
the saturated subsurface.  It defines site parameters and appropriate  
ranges of criteria necessary for characterization, testing, design,  
and monitoring of ISB technologies.  For more information and to  
register, see or .  
New Documents and Web Content  
Guidance for Obtaining Representative Laboratory Analytical  
Subsamples from Particulate Laboratory Samples (EPA  
600-R-03-027).  This guidance was published by the EPA National  
Risk Management Research Laboratory.  It provides education and  
instruction for managing a potential weakness in environmental  
data quality for solid materials. Representative data are the  
foundation of correct decisions and effective remedial designs.  
This document shows how analytical subsampling is a crucial link  
for representative samples. It defines sample representativeness  
in terms of the population of interest to the decision, which may or  
may not be based on a bulk average.  Examples show how careless  
subsampling can severely bias analytical results (November 2003,  
156 pages).  View or download at .  
Performance Monitoring of MNA Remedies for VOCs in  
Ground Water (EPA 600-R-04-027).  This document provides  
technical recommendations regarding the types of monitoring  
parameters and analyses useful for evaluating the effectiveness of  
the natural attenuation component of ground-water remedial  
actions. The information will be helpful during the design of the  
performance monitoring plan as well as during its implementation  
(April 2004, 92 pages).  View or download at ... .  
Center for Subsurface Modeling Support (CSMoS).  This  
website is operated by the U.S. EPA National Risk Management  
Research Laboratory.  The Center for Subsurface Modeling  
Support (CSMoS) provides public domain ground-water and  
vadose zone modeling software and services to public agencies and  
private companies throughout the nation.  The primary aims of  
CSMoS are to provide direct technical support to EPA and State  
decision makers in subsurface model applications and to manage  
and support the ground-water models and databases resulting from  
the research at NRMRL.  This research encompasses the transport  
and fate of contaminants in the subsurface, the development of  
methodologies for protection and restoration of ground-water  
quality, and the evaluation of subsurface remedial technologies.  
As a result, a major focus of CSMoS entails coordinating the use of  
models for risk assessment, site characterization, remedial  
activities, wellhead protection, and Geographic Information  
Systems (GIS) application.  For more information, see .  
New and Improved FRTR Remediation Optimization  
Information.  The Federal Remediation Technologies Roundtable  
(FRTR)  Remediation Optimization web site was recently  
improved.  A compilation of 73 FRTR Optimization case studies  
are available for the first time.  The reports contain information on  
the optimization of remedial systems and/or long-term monitoring  
programs.  Visitors can search these reports by remedial  
technology, optimization method, and other criteria.  New  
additions to the site also include a list of commonly-used acronyms  
and terms and a Meetings and Conferences page. Proceedings of  
the Site Optimization Conference held June 15-17 in Dallas, TX  
will be posted here later this month.  The FRTR Remediation  
Optimization page was also enhanced with file format and size  
information as well as a site navigation pathway that will guide  
visitors as they browse the site.  To access the FRTR Remediation  
Optimization website, see .  
Cost and Performance Information on Cleanup Technologies  
Available.  The Federal Remediation Technologies Roundtable  
(FRTR) recently compiled 117 new remediation case study and  
technology assessment reports documenting the cost, performance,  
and lessons learned in implementing a wide range of hazardous  
waste cleanup technologies in the field, ranging from large-scale  
demonstrations to full-scale applications.  With this addition, a  
total of 632 reports are now available in four areas - 361 cost and  
performance case study reports describing the use of remediation  
technologies; 144 reports describing the use of site characterization  
and monitoring technologies; 73 case studies describing long-term  
monitoring/optimization of remediation technologies; and 54  
reports describing the assessments of remediation technologies at  
hazardous waste sites.  These reports and other related FRTR  
information can be accessed at .  
Abstracts of Remediation Case Studies, Volume 8 (EPA  
542-R-04-012).  This new report, published by the Federal  
Remediation Technologies Roundtable (FRTR), is a collection of  
abstracts summarizing 19 cost and performance case study reports  
on the use of remediation technologies at contaminated sites.  This  
collection of case studies include 7 projects addressing cleanup of  
soil and groundwater using in situ bioremediation technologies, 4  
case studies focusing on soil vapor extraction for treatment of  
halogenated volatile compounds, and 3 reports covering in situ soil  
and groundwater treatment using chemical oxidation/reduction  
technologies  (June 2004, 109 pages).  View or download at .  For hard copies, contact (800)  
490-9198 or fax to (513) 489-8695.  
Technology News and Trends - Issue 13 (EPA 542-N-04-004).  
This quarterly update is published by the EPA Office of Superfund  
Remediation and Technology Innovation.  This issue focuses on  
Triad applications, reference resources and available training (July  
Posted: 03/08/2004 By: Paul Bardos