US EPA TechDirect, September 1, 2010
SUBJECT: TechDirect, September 1, 2010  
  
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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.  
  
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TechDirect audience.  
  
Upcoming Live Internet Seminars  
  
Understanding the FY11 Job Training Grant Application Guidelines  
- September 2, 2010, 2:00PM-4:00PM EDT (18:00-20:00 GMT). This  
seminar will provide an overview of the FY11 application  
guidelines for the Environmental Workforce Development and Job  
Training Grants -formerly known as the 'Brownfields Job Training  
Grants.' Eligibility and ranking evaluation criteria will be  
covered, as well as information on formatting and key building  
blocks of a successful proposal. A questions and answers session  
will be held at the end. For more information and to register,  
see http://clu-in.org/live .  
  
TABEZ - Free E-Tool to Facilitate Writing of EPA Assessment and  
Cleanup Grants -  
September 8, 2010, 2:00PM-3:30PM EDT (18:00-19:30 GMT). TAB EZ  
is a FREE online tool intended to streamline and simplify the  
grant writing process when applying for EPA brownfields  
assessment and cleanup grants. The goal of TAB EZ is to level  
the playing field for smaller local governments and communities  
so they may have an increased chance to obtain EPA brownfields  
grant funds. TAB EZ is very user friendly. It offers helpful  
hints for addressing proposal requirements, as well as links to  
additional resources. Multiple participants may work on a  
proposal, while at the same time all proposals are password  
protected to prevent unauthorized use. TAB EZ was developed by  
the TAB (Technical Assistance to Brownfields communities)  
program at Kansas State University with funding from the U.S.  
Environmental Protection Agency (EPA) under cooperative  
agreement TR83389401. This webinar will step attendees through  
TABEZ and explain the use of the tool. Attendees may want to log  
on to TABEZ before the webcast and follow along using the live  
tool. TAB EZ is available at http://www.tabez.org For more  
information and to register, see http://clu-in.org/live .  
  
Stable Isotope Analyses to Understand the Degradation of Organic  
Contaminants in Ground Water (Parts 1 and 2) - September 9 and  
16, 2010, 2:00PM-3:30PM EDT (18:00-19:30 GMT). When organic  
contaminants such as benzene, TCE or MTBE are degraded, the  
ratio of the stable isotopes of carbon in the organic  
contaminants will often change in a predictable fashion. This  
webinar will briefly review the theory behind isotopic effects,  
it will explain the units used to characterize the ratio of  
isotopes, and it will discuss the simple mathematics that can  
relate the shift in the ratio to the extent of degradation. Then  
the webinar will illustrate an approach to estimate rate  
constants for natural biodegradation of contaminants in ground  
water. The isotope analysis will be used to estimate the extent  
of natural biodegradation of MTBE at a gasoline spill site. The  
extent of biodegradation will be combined with the hydrological  
parameters at the site to estimate rate constants for  
biodegradation. The webinar will conclude with a number of  
cautions and warnings. Heterogeneity in flow paths in the  
aquifer and proximity to NAPL or other source of contamination  
to ground water can substantially confuse the interpretation of  
stable isotope data. Both these conditions cause the isotope  
analysis to underestimate the extent of degradation.  
Heterogeneity in the rate of biodegradation can produce  
substantial errors in the forecasts of plume behavior. The  
webinar will provide recommendations to deal with the effects of  
heterogeneity in rates of biodegradation. Note: This is a repeat  
of the June 16, 2010 seminar on this topic split across two  
sessions. For more information and to register, see  
http://clu-in.org/live .  
  
ITRC Protocol for Use of Five Passive Samplers - September 14,  
2010, 2:00PM-4:15PM EDT (18:00-20:15 GMT). This training  
supports the understanding and use of the ITRC Protocol for Use  
of Five Passive Samplers to Sample for a Variety of Contaminants  
in Groundwater (DSP-5, 2007). The five technologies included in  
this document include diffusion samplers, equilibrated grab  
samplers, and an accumulation sampler. The training starts with  
information common to all five samples then focuses on each  
sampler as instructors describe the sampler and explain how it  
works; discuss deployment and retrieval of the sampler;  
highlight advantages and limitations; and present results of  
data comparison studies. For more information and to register,  
see http://www.itrcweb.org or http://clu-in.org/live .  
  
ITRC Phytotechnologies - September 16, 2010, 11:00AM-1:15PM EDT  
(15:00-17:15 GMT). This training familiarizes participants with  
ITRC's Phytotechnology Technical and Regulatory Guidance and  
Decision Trees, Revised (Phyto-3, 2009). This document provides  
guidance for regulators who evaluate and make informed decisions  
on phytotechnology work plans and practitioners who have to  
evaluate any number of remedial alternatives at a given site.  
This document updates and replaces Phytoremediation Decision  
Tree (Phyto-1, 1999) and Phytotechnology Technical and  
Regulatory Guidance Document (Phyto-2, 2001). It has merged the  
concepts of both documents into a single document. This guidance  
includes new, and more importantly, practical information on the  
process and protocol for selecting and applying various  
phytotechnologies as remedial alternatives. For more information  
and to register, see http://www.itrcweb.org or  
http://clu-in.org/live .  
  
Biological-based Assays - Indicators of Ecological Stress -  
September 23, 2010, 2:00PM-4:00PM EDT (18:00-20:00 GMT). This  
seminar will feature Dr. Bruce Duncan, Senior Ecologist with EPA  
Region 10's Office of Environmental Assessment, and Dr. Jim  
Shine, Associate Professor of Aquatic Chemistry at Harvard  
University's Center for the Environment and part of the Harvard  
School of Public Health Superfund Research Program. Dr. Duncan  
and EPA Region 10 have been assisting the NIEHS Superfund  
Research Program for many years. Part of recent support has been  
through the National Bioassay Project, a consortium of existing  
research centers focused on developing and crosswalking a suite  
of tests to evaluate complex mixtures in sediments. As an  
ancillary to that project, detailed work on evaluating organism  
exposures to contaminants was conducted at a Superfund Site  
(Lower Duwamish Waterway) in Seattle, WA. A 2009 exposure study  
led largely by Matt Kelley (Texas A&M, now with LSU Health  
Sciences Center-Shreveport) and supported by EPA, Texas A&M,  
Southern California Coastal Water Research Project, and NOAA  
looked at the concordance between media concentrations,  
biomarker response, and bioaccumulation of PCBs and PAHs at  
several locations. Dr. Shine's presentation will focus on the  
'Gellyfish' sampling tool. The 'Gellyfish', an in-situ  
equilibrium-based sampling tool for determining multiple free  
metal ion concentrations in aquatic systems, has been developed  
and refined under both laboratory and field conditions. The  
device 
Posted: 02/09/2010 By: Professor Paul Bardos



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