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TechDirect gained 318 new subscribers for a total of 24,452. This
March issue of TechDirect kicks off our tenth year keeping you
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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, 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.
Internet Seminars
ITRC Site Investigation and Remediation for Munitions Response
Projects - March 14. This training provides an introduction and
overview of the processes, tools, and techniques used in
investigation and remediation. These concepts are illustrated using
an example munitions response site. Major steps in each process
are identified and key regulatory considerations discussed. This
training also identifies additional sources for more detailed
information on key aspects of investigation and remediation. State
regulators and others who need to understand the general processes
involved in these critical aspects of the munitions response process
will benefit from this training. For more information and to
register, see http://www.itrcweb.org or http://clu-in.org/studio .
ITRC Design, Installation and Monitoring of Alternative Final
Landfill Covers - March 16. 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 http://www.itrcweb.org or
http://clu-in.org/studio .
Revegetation and Restoration of an Oil Contaminated Wetland in
Northern New Jersey - March 30. This presentation will attempt to
show that a carefully supervised cleanup followed by a
scientifically driven monitoring program can be effective in
removing oil from a sensitive wetland habitat using the Green
Pond Oil Spill Removal project as the prime example. A
monitoring program for determining the success of the
revegetation/restoration effort was conducted. Species composition
and productivity measurements were an integral part of the
parameters to measure the progress of the effort to determine
comparability between the remediated site and undisturbed
wetlands. The presentation will incorporate all that has been
learned from the removal activity in terms of How Clean is Clean
as applied to an oil contaminated fresh water wetland. This
information should be useful for decision makers, responders, and
consultants alike when faced with remediating disturbed or
contaminated habitats. For more information and to register, see
http://clu-in.org/studio .
ITRC Constructed Treatment Wetlands - April 4. This course,
developed by the Interstate Technology and Regulatory Council
(ITRC), is based on Technical and Regulatory Guidance for
Treating Storm Water and Wastewater Using Constructed
Treatment Wetlands (WTLND-1). It describes the physical,
chemical, and biological mechanisms operating in wetlands
treatment systems, the contaminants to which they apply, the
characteristics of sites suitable to treatment in this fashion, and
relevant regulatory issues. For more information and to register,
see http://www.itrcweb.org or http://clu-in.org/studio .
ITRC Perchlorate: Overview of Issues, Status, and Remedial
Options - April 6. Improved analytical methodology has increased
the known extent of perchlorate contamination in the U.S. A
variety of remediation technologies are currently commercially
available and being used for perchlorate remediation. This training,
based on ITRC's Perchlorate: Overview of Issues, Status, and
Remedial Options (PERC-1), explains why perchlorate is a hot
topic in the environmental community including up-to-date
information on sources, occurrences, toxicity and exposure,
regulatory status and remediation alternatives. For more
information and to register, see http://www.itrcweb.org or
http://clu-in.org/studio .
New Documents and Web Resources
Pilot Project to Optimize Ground Water Remediation Systems at
RCRA Corrective Action Facilities: Summary Report and Lessons
Learned (EPA 542-R-06-001). The U.S. EPA Office of Solid
Waste (OSW) and the U.S. EPA Office of Superfund Remediation
and Technology Innovation (OSRTI) sponsored independent
optimization evaluations in 2003 and 2004 at five facilities with
pump and treat (P&T) systems regulated under the Resource
Conservation and Recovery Act (RCRA). The Remediation System
Evaluation (RSE) process developed by the U.S. Army Corps of
Engineers was used. Based on the positive results of these RSEs
and the consideration that many sites would receive a similar
benefit from a streamlined RSE with a lower cost, OSRTI and
OSW commissioned a new pilot study to develop and pilot a
streamlined RSE process (RSE-lite) that reduces the evaluation
cost relative to a full-scale RSE. Four sites were selected by the
EPA OSRTI and OSW to receive RSE-lites based on nominations
provided by EPA project managers. Upon completion of the draft
RSE-lite reports, one of the four sites was selected to receive a site
visit and additional analysis to convert the RSE-lite into a
full-scale RSE (December 2005, 26 pages). View or download
from http://clu-in.org/techpubs.htm .
Characterization, Design, Construction, and Monitoring of
Bioreactor Landfills (ALT-3). This report was published by the
Interstate Technology and Regulatory Council (ITRC). It is
intended primarily for decision makers associated with the plan
development, review, and implementation of bioreactor landfills.
The decision makers include, at a minimum, regulators,
owners/operators, and consultants. This document focuses on the
decisions and facilitating the decision processes related to design,
evaluation, construction, and monitoring associated with bioreactor
landfills (February 2006, 111 pages). View or download at
http://www.itrcweb.org/Documents/ALT-3 ... .
Report on Results of the 2004-2005 Double-Blind Laboratory
Evaluation Program. During 2004 and 2005, the Massachusetts
Department of Environmental Protection (MassDEP) conducted a
large double-blind laboratory evaluation study, involving 19
commercial laboratories that provide the majority of analytical
support services to parties assessing and cleaning up hazardous
waste sites in Massachusetts. A double-blind study is one in which
a laboratory is unaware that they have been sent samples that
contain known concentrations of contaminants. The study was
undertaken by MassDEP as part of a multi-year/multi-component
data enhancement effort, in order to obtain a direct, real world
sense of data quality and reliability in its waste site cleanup
program (December 2005, 30 pages). View or download at
http://www.mass.gov/dep/cleanup/dbl-bl ... .
New Phytotechnologies Profiles. EPA has developed this website
to summarize timely information about full-, field- and large
greenhouse-scale applications of phytotechnology. Projects for this
website are collected using information from technical journals,
conference proceedings as well as information obtained from
technology vendors and site manag
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