TECH DIRECT E-News from the US EPA on Contaminated
Land and Water Managemnt
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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, May 4.  
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 or .  
ITRC Alternative Landfill Covers - Design, Installation, and  
Monitoring of Alternative Final Landfill Covers, May 13.  This  
training focuses on evapotranspiration (ET) covers and the  
decisions associated with their successful design, construction, and  
long-term care.  For more information and to register, see or or .  
NIEHS Biosensor Research - Part Two, May 18.  This is the  
second of two seminars on Biosensors for Environmental  
Monitoring.  Dr. Patrick Larkin of EcoArray, Inc. will describe  
their work to develop gene chips and related products for several  
key wildlife models of interest to government agencies.  In  
addition, Dr. Elwood Linney of Duke University will present his  
work on the zebrafish model and place it within the context of  
mammalian models that are used to investigate the effects of  
environmental toxicants.  To register, see .  
ITRC Systematic Approach to In Situ Bioremediation:  
Nitrates, Carbon Tetrachloride, and Perchlorate, May 20.  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 or .  
New Documents  
Guidance for Monitoring at Hazardous Waste Sites:  
Framework for Monitoring Plan Development and  
Implementation (OSWER Directive 9355.4-28).  This U.S. EPA  
guidance document presents a framework for developing and  
implementing technically defensible Monitoring Plans for  
hazardous waste sites in support of the One Cleanup Program.  It  
was written for site managers who are legally responsible for  
managing removal and remedial site activities.  The document is  
intended for use at hazardous waste sites that have completed site  
characterization, risk assessment, and remedy selection and are in  
the process of implementing a removal action or site mitigation  
(January 2004, 64 pages).  View or download at .  
CLU-IN Contaminant Focus Update.  EPA understands that site  
owners and other parties involved in remedial activities need  
information in a variety of formats. Cleanup information may, for  
example, be organized according to site types, technologies, or  
environmental media. The CLU-IN Contaminant Focus area  
bundles information associated with the cleanup of individual  
contaminants and contaminant groups. This information is  
presented in categories such as Policy and Guidance, Chemistry  
and Behavior, Environmental Occurrence, Toxicology, Detection  
and Site Characterization, Treatment Technologies, and  
Conferences and Seminars.  We have recently added two new  
contaminant areas to the site: PCBs and MTBE.  For more  
information, see .  
ESTCP Cost and Performance Report:  Natural Pressure-  
Driven Passive Bioventing (CU-9715).  This report was produced  
by the DoD Environmental Security Technology Certification  
Program (ESTCP).  It provides information needed for comparing  
passive bioventing to conventional bioventing on the basis of  
performance, installation and operating costs, and implementation  
issues.  The primary demonstration objective was to identify a site  
where passive bioventing would be successful.  The secondary  
objective was to measure the rate of airflow and radius of oxygen  
influence as the result of operating a pilot-scale passive bioventing  
system that consisted of one vent well with a one-way passive  
valve and soil-gas monitoring points (January 2004, 43 pages).  
View or download at ...  .  
ESTCP Cost and Performance Report:  Applied Innovative  
Technologies for Characterization of Explosives-Contaminated  
DoD Building Foundations and Underlying Soils (CU-0130).  
The DoD Environmental Security Technology Certification  
Program (ESTCP) evaluated a variety of methods for  
characterizing the foundations, adjacent areas, and underlying soils  
without having to remove the buildings and foundations first.  As  
part of this demonstration, field test methods including Raman  
spectroscopy, Expray colorimetric indicator, and the Cold Regions  
Research and Engineering Laboratory (CRREL) Royal Demolition  
Explosive (RDX) colorimetric field screening method were  
evaluated at five buildings to determine the presence and/or  
concentration of nitrocellulose or nitroglycerine in soil samples and  
concrete slabs.  Raman spectroscopy was also evaluated for  
identifying the presence of other organic compounds used in the  
manufacturing processes (February 2004, 49 pages).  View or  
download at ... .  
Enhanced Access Penetration System (EAPS).  The Department  
of Energy funded the development of a direct push (DP) system  
able to drill through refusal points. This report describes an  
evaluation study of the Enhanced Access Penetration System  
(EAPS) which extends cone penetrometer penetration depth.  
EAPS consists of four major components: (1) a Wireline CPT/Gas  
sampling probe and wireline soil and groundwater sampling  
system, (2) a small diameter air rotary drilling system, (3)  
environmental sensors that are used to detect and characterize  
contamination in both real and near-real time, and (4) an integral  
drill spoils collection and filtration system. (January 2004, 66  
pages).  View or download at .  
CalEPA Evaluation Report: Hapsite GCMS.  California EPA's  
Department of Toxic Substances Control (DTSC) has certified the  
analytical capabilities of the HAPSITE portable gas  
chromatograph-mass spectrometer (GC-MS) system as a  
field-based analytical method as well as a laboratory instrument for  
measuring volatile organic compounds (VOCs) in water, soil and  
soil gas. This 2004 certification report evaluates the performance  
of the HAPSITE instrument based on a detailed review of data  
packages submitted by the technology proponent, field data  
generated by independent parties, and of new data collected under  
the oversight of the California Environmental Technology  
Certification Program (March 2004, 75 pages).  View or download  
at .  
Conferences and Symposia  
MTBE & TBA - Comprehensive Site Assessment and  
Successful Groundwater Remediation, Mansfield, NJ, May 10-  
11.  The Interstate Te 
Posted: 08/05/2004 By: Paul Bardos