US EPA TechDirect, July 1, 2006
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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  
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relevant to the TechDirect audience.  
Internet Seminars  
Land Disposal Restrictions (LDR) Training - July 11.  
This is your chance to review the basics - what the  
federal LDR regulations are, how to apply them as  
regulators, and even how they apply in real life. This  
presentation will focus on the federal regulations  
with the idea that the states often have more  
restrictive regulations or different interpretations.  
A state speaker will assist the primary speaker from  
EPA. Please note that this seminar consists of two,  
one-hour sessions with a 15-minute break. For more  
information and to register, see .  
Uses of Rapid Assessment Tool (RAT) - July 18. RAT is  
mapping software that provides a real-time continuous  
data collection and assessment in the field. RAT is  
being developed in-house by the EPA Region 5 FIeld  
EnvironmentaL Decision Support (FIELDS) group as a  
standalone program and does not require any licensing.  
For more information and to register, see .  
ITRC What is Remediation Process Optimization And How  
Can It Help Me Identify Opportunities for Enhanced and  
More Efficient Site Remediation? - July 27. This  
training discusses the value of optimization in  
efficiently and objectively setting and attaining  
remediation goals. Key elements of RPO that will be  
discussed in the training include: Appropriate use of  
up-to-date conceptual site models (CSM); Flexible  
Remedial Action (RA) operations considering technology  
limitations and risk assessments; use of treatment  
trains for each target zone, and developing  
performance objectives for each element; development  
of an exit strategy for each remedy component  
considering life-cycle factors; and life-cycle cost  
analysis as a decision-making tool with the  
requirement that protectiveness must be maintained or  
improved. For more information and to register, see .  
ITRC An Overview of Direct-push Well Technology for  
Long-term Groundwater Monitoring - August 3. 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 .  
New Documents  
EPA Technology Programs and Inter-Agency Coordination.  
This report was produced by the National Advisory  
Council for Environmental Policy and Technology  
(NACEPT) for EPA.  The report focuses on the  
evaluation of EPA's internal technology programs, the  
organization of their presentation to the public, and  
recent efforts to cross organizational lines to more  
effectively solve problems that are impeded by the  
lack of commercially available technology. In  
particular, the report contains the EPA Technology  
Development Continuum, the entire text of which can be  
found in Appendix D. The Subcommittee reviewed a  
substantial subset of EPA's many and diverse  
technology facilitation programs, 24 of which have  
been identified to date (May 2006, 56 pages).  View or  
download at .  
Measurement and Monitoring: 19th Quarterly Literature  
Search.  This service is provided by the U.S. EPA  
Office of Superfund Remediation and Technology  
Innovation as a part of its Measurement  and  
Monitoring for the 21st Century Initiative.  EPA has  
identified 16 areas related to waste site cleanup  
where significant technology needs exist and, thus,  
require research and or technology demonstration to  
help advance new tools to address these needs. The  
19th quarterly update of literature contains new  
citations related to the needs areas (April 2006, 81  
pages).  View or download at  
Downward Solute Plume Migration: Assessment,  
Significance and Implications for Characterization and  
Monitoring of 'Diving Plumes? (API Bulletin 24).  This  
document was produced by the American Petroleum  
Institute (API) Soil and Groundwater Technical Task  
Force.  The report?s purpose is to promote a common  
understanding of the phenomenon of diving plumes.  The  
term 'diving plume' refers to the gradual downward  
vertical migration of a dissolved-phase contaminant  
plume to greater depths in the subsurface with  
increasing distance along the flow path, resulting in  
the existence of a region of uncontaminated water  
overlying portions of the plume.  An unrecognized  
diving plume could result in an inadequate evaluation  
of risk to receptors, erroneous interpretation of the  
significance of natural attenuation, under-design of a  
remediation system or inadequate assessment of  
remedial performance. (April 2006, 38 pages). View or  
download at ... .  
Occurrence and Implications of Selected Chlorinated  
Solvents in Ground Water and Source Water in the  
United States and in Drinking Water in 12 Northeast  
and Mid-Atlantic States, 1993?2002 (SIR 2005-5268).  
This report was published by the U.S. Geological  
Survey.  The purpose of this report is to present  
information on the occurrence and implications of four  
solvents in ground water, source water, and drinking  
water.  The USGS collected or compiled data on select  
chlorinated solvents in samples of ground water,  
source water, and drinking water. The water samples  
were collected during 1993?2002. Data on solvents in  
ground water and source water were available for the  
conterminous United States, Alaska, and Hawaii. Data  
on solvents in drinking water only were available for  
12 Northeast and Mid-Atlantic States. The occurrence  
and distribution of four solvents were  
examined, including: methlyene chloride, 1,1,1-trichloroethane,  
tetrachloro-ethene, and trichloroethene (2006, 82  
pages). View or download at ... .  
DoD Perchlorate Handbook.  This handbook was produced  
by the U.S. Department of Defense Environmental Data  
Quality Workgroup. It was developed to assist DoD  
facilities in complying with current DoD policy  
governing perchlorate sampling and testing activities  
for both environmental restoration/cleanup and  
compliance monitoring programs. Intended users of this  
document include DoD Remedial Project Managers (RPMs),  
contractor project managers, and field-sampling  
personnel (March 2006, 81 pages).  View or download  
from ...  
Perchlorate%20Handbook%20Final%203-30-06.pdf .  [Note:  
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Posted: 30/06/2006 By: Professor Paul Bardos