US EPA Tech Direct E-News May 1 2007
Welcome to TechDirect! Since the April 1 message, TechDirect   
gained 228 new subscribers for a total of 27,936. If you feel   
the service is valuable, please share TechDirect with your   
colleagues. Anyone interested in subscribing may do so on CLU-IN   
at http://clu-in.org . All previous issues of TechDirect are   
archived there. The TechDirect messages of the past can be   
searched by keyword or can be viewed as individual issues.  
  
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   
constitute a U.S. EPA endorsement of their contents, only an   
acknowledgment that they exist and may be relevant to the   
TechDirect audience.  
  
Special Notice  
  
Draft Grant Guidelines To States For Implementing The Operator   
Training Provision Of The Energy Policy Act Of 2005   
(510-D-07-002) is now available for public comment. EPA, in   
conjunction with states, developed these draft grant guidelines   
for state underground storage tank programs. After receiving   
comments, EPA will develop final guidelines and incorporate them   
in grant agreements between EPA and states. EPA developed the   
guidelines according to Title XV, Subtitle B of the Energy   
Policy Act of 2005, which focuses on preventing underground   
storage tank releases. Comments are due by May 10, 2007. For   
more information, see   
http://www.epa.gov/oust/fedlaws/draft_ ...  
  
Upcoming Live Internet Seminars  
  
New Search Options for Archived Internet Seminars & Podcasts.   
Over the past 8 years, we have presented Internet Seminars   
covering a wide variety of technical topics related to hazardous   
waste characterization, monitoring, and remediation. For each   
seminar topic, we have selected the highest-quality offering for   
placement in our archives. In addition to browsing all 129   
archived seminars, you may now also search the archives for   
seminars that interest you based on keywords, sponsors, and   
archived date. Search archived Internet Seminars & Podcasts at   
http://www.clu-in.org/live/archive.cfm .  
  
Understanding and Reconstructing Soil Conditions at Remediation   
Sites - May 2. Effective in situ rehabilitation of drastically   
disturbed and/or contaminated sites is usually dependent upon   
understanding and modifying on-site soil conditions to support   
revegetation efforts. While site-specific characterization of   
soil conditions is essential to the development of any   
revegetation strategy, limitations posed by reactive sulfides   
and very low pH, excess soil compaction, and excess salinity are   
dominant and widespread problems on disturbed sites. This   
seminar will focus on essential steps and procedures for (A)   
characterizing limiting soil conditions, (B) ameliorating soil   
phytotoxicity, and (C) reconstructing viable and productive soil   
profiles for long-term rehabilitation. The importance of   
matching remediated soil conditions to the intended vegetative   
community will be emphasized via discussion of case study sites   
including metal contaminated sites, acid-sulfate spoils, and   
forested wetlands restoration. For more information and to   
register, see http://clu-in.org/studio .  
  
ITRC Vapor Intrusion Pathway: A Practical Guideline - May 8. The   
ITRC Vapor Intrusion Team developed the ITRC Technical and   
Regulatory Guidance document Vapor Intrusion Pathway: A   
Practical Guideline (VI-1, 2007), companion document Vapor   
Intrusion Pathway: Investigative Approaches for Typical   
Scenarios (VI-1A, 2007), and this Internet-based training course   
to be used by regulatory agencies and practitioners alike. This   
training course provides an overview of the vapor intrusion   
pathway and information on the framework (evaluation process),   
investigative tools, and mitigation approaches. The training   
course uses typical scenarios to illustrate the process. For   
more information and to register, see http://www.itrcweb.org or   
http://clu-in.org/studio .   
  
ITRC Radiation Risk Assessment: Updates and Tools - May 15. The   
ITRC has developed a document, Determining Cleanup Goals at   
Radioactively Contaminated Sites: Case Studies (RAD-2, 2002),   
that examines the factors influencing the variations in cleanup   
level development at various radioactively contaminated sites.   
This document underscores the need for radiation risk assessment   
training to enhance consistency in risk assessment application.   
The document also acknowledges the differences between the 'dose   
approach' used at some sites and EPA's 'risk-based approach'.   
Since most radioactively contaminated DOE and DOD sites are   
developing cleanup goals under CERCLA authority, there is a need   
for a training course that clarifies the variations between   
these approaches and elaborates on the methodology used to   
develop risk-based remediation goals. To meet this need, this   
training course has been collaboratively developed by the ITRC   
Radionuclides Team and EPA's Superfund Office. The focus of this   
training is EPA's new radiation risk assessment tools, which can   
facilitate better decision making for accelerated cleanups. For   
more information and to register, see http://www.itrcweb.org or   
http://clu-in.org/studio .   
  
ITRC An Overview of Direct-push Well Technology for Long-term   
Groundwater Monitoring - May 17. 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 http://www.itrcweb.org or   
http://clu-in.org/studio .  
  
Nanotechnology - Environmental Sensors - May 31. The Superfund   
Basic Research Program (SBRP), in collaboration with the   
Environmental Protection Agency (EPA), presents 'Nanotechnology   
- Environmental Sensors.' This seminar is part of a series   
covering the applications and implications of nanotechnology as   
it pertains to the National Superfund Program. Nanotechnology   
involves the understanding and control of matter at dimensions   
of roughly 1 to 100 nanometers. In terms of environmental   
sensing, the use of nanotechnology has led to the production of   
numerous small-scale, rapid, sensitive multi-analyte instruments   
useful not only in the laboratory, but also as field portable   
instruments. This seminar will provide an overview of some of   
the capabilities and advantages of nanotechnology-based sensors.   
The speakers will include Paul Gilman (Director, Oak Ridge   
Center for Advanced Studies), Desmond Stubbs (Research   
Associate, ORCAS), and Ian Kennedy (Professor of Mechanical and   
Aeronautical Engineering, University of California - Davis). For   
more information and to register, see http://clu-in.org/studio .  
  
ITRC Radiation Site Cleanup: CERCLA Requirements and Guidance -   
June 5. The focus of this ITRC training is EPA's guidance for   
remediating radioactively contaminated sites, which can   
facilitate cleanups that are consistent with how chemical   
contaminants are addressed, except where technical differences   
posed by radiation are addressed. This course also discusses   
long term stewardship (LTS) challenges related to the large   
radioactively contaminated sites. This understanding of LTS 
Posted: 14/05/2007 By: Professor Paul Bardos



PRINT