Message #83: January 2004

Welcome to TechDirect. Since the December 1 message,

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at httn://ciu-in.om/techrtimct. All previous issues of TechDirect are archived
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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.

Solicitation.

EPA's Office of Solid Waste and Emergency Response (OSWER) is
now soliciting cooperative agreement proposals from educational
institutions and non-profit organizations. The cooperative
agreements would be for EPA financial assistance to provide
educational and training opportunities, in the form of internships, for
students in the hazardous waste management field. These
cooperative agreements will be awarded under Section 311 (b)3 and
(9) of the Comprehensive Environmental Response, Compensation
and Liability Act and Section 8001 of the Solid Waste Disposal Act,
and would enable students to: gain knowledge of alternative or
innovative treatment technologies and real work experience in the
hazardous waste management field; and also to earn academic
credit. Deadline to submit proposals is February 4, 2004. For more

information, see http://www,epa,aov/oswer/education-arants,htm .

Internet Seminars

No live events planned for January. We now have forty seminars
archived in the CLU-IN Studio at httn://ciM-in.om/studio. This area allows
individuals to see and hear seminar topics as they were delivered on
a previous date. The audio portion can be heard using Real Player
or Windows Media Player.

Documents

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EPA REACHIT Database Updated. The U.S. EPA added 130 new
commercial treatment and characterization technologies, including:
in situ chemical treatment, permeable reactive barrier, in situ thermal
treatment, in situ flushing, phytoremediation, pump and treat for
perchlorate, in situ chemical immobilization, and characterization and
sampling technologies for NAPLs. For the first time, the system
documents 743 pump and treat systems at Superfund sites, as well
as over 50 vertical engineered

barrier (VEB) projects, and more detailed information on other
technologies. To access REACHIT, see http://wvvw.eDa reach it .org .

Human Health Toxicity Values in Superfund Risk Assessments
(OSWER Directive 9285.7-53). This directive was issued on
December 5, 2003 by the Office of Superfund Remediation and
Technology Innovation (OSRTI). It presents current Office of Solid
Waste and Emergency Response (OSWER) technical and policy
recommendations regarding human health toxicity values in risk
assessments. The guidance revises the hierarchy of human health
toxicity values recommended for use in risk assessments that were
originally presented in Risk Assessment Guidance for Superfund,
Volume I, Part A, "Human Health Evaluation Manual" (RAGS)
(OSWER 9285.7-02B, EPA/540/1-89/009, December 1989). The
memo provides guidance for the sources of toxicity information that
should generally be used in performing human health risk
assessments at Superfund sites. It does not address the situation
where new toxicity information is brought to the attention of USEPA.
It also does not provide guidance or address toxicity or reference
values for ecological risk. Public comments on this memorandum are
welcomed at any time December 2003, 4 pages). View or download

the memorandum at http://www.epa.aov/oerrpaae/superfund/proarams/risk/hhmemo.pdf .

Guidance on the Resolution of the Post-ROD Dispute

(memorandum and attachments). EPA recently issued guidance to
confirm the resolution of the post-Record of Decision (ROD) dispute
between EPA and the Department of Defense and to provide
guidelines to the implementation of the resolution. For more

information, see http://www.epa.aov/swerffrr/documents/post rod 112503.htm .

Technology News and Trends - Issue 9 (EPA 542-N-03-006). This
quarterly update is produced by the EPA Office of Superfund
Remediation and Technology Innovation. This issue features articles
on Innovative Methods Used to Integrate Soil and Ground-Water
Remediation and a summary of SVE and ISCO Used After Pump
and Treat for Multimedia Removal of VOCs (December 2003, 6
pages). View or download at http://clu-in.org/techpubs.htm . For hard copies,

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contact (800) 490-9198 or (513) 489-8190 or fax to (513) 489-8695.

Technical and Regulatory Guidance for Design, Installation,
and Monitoring of Alternative Final Landfill Covers (ALT-2). This
document was prepared by The Interstate Technology & Regulatory
Council Alternative Landfill Technologies Team. It is primarily written
for decision makers associated with the plan development, review,
and implementation of alternative final covers (AFCs). The document
focuses on the decisions and facilitating the decision processes
related to design, evaluation, construction, and post-closure care
associated with AFCs. To facilitate the use of this document and
understanding of the decision process, an electronically interactive
decision tree is provided. The document provides input related to key
decision steps in the permitting, design, construction, and
maintenance of AFCs (December 2003, 211 pages). View or

download at http://www.itrcweb.org/ALT-2.pdf .

Alternative Landfill Cover Profiles On-line. Prepared by U.S.

EPA's Technology Innovation Office, this database contains
information about proposed, tested, or installed alternative design
covers at waste disposal sites, including municipal solid waste and
hazardous waste landfills and radioactive waste sites. The majority
of alternative design covers featured are evapotranspiration (ET)
covers including monolithic and capillary barrier designs. As of
November 2003, the database included 64 landfills/waste sites with
77 cover projects (some sites have more than 1 cover project). Most
of the cover projects are demonstrations. Several are full-scale
applications. To access the profiles, visit http://cluin.org/products/altcovers .

Vapor Intrusion Issues at Brownfield Sites (BRNFLD-1). This
document was prepared by The Interstate Technology & Regulatory
Council Brownfields Team. It provides an overview of vapor
intrusion, the type of contaminants that may have vapor intrusion
potential, the potential of brownfield sites to have indoor air exposure
from vapor intrusion, and the steps that can be taken to limit
exposures. It includes discussion of state and federal approaches for
determining whether vapor intrusion may pose risks and case
studies to illustrate site conditions that are typical when vapor
intrusion impacts indoor air quality (December 2003, 77 pages).

View or download at http://www.itrcweb.org/BRNFLD-1 .pdf . (See also the Vapor
Intrusion Workshop under Conferences and Symposia).

Technical and Regulatory Guidelines Document for
Constructed Treatment Wetlands (WTLND-1). This document was
prepared by The Interstate Technology & Regulatory Council
Wetlands Team. It describes the fundamental mechanisms of
wetland contaminant removal and overall wetland functions and

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provides detailed descriptions of the various contaminant treatment
objectives, treatment efficiencies, and goals of different constructed
wetland applications. Detailed, site-specific predesign criteria and
conceptual designs are outlined, followed by final design,
postconstruction activities, operation and maintenance, monitoring,
and implementation costs. The document provides decision trees for
each of the major constructed treatment wetland applications,
designed to enable users to take basic information from a specific
site and, through a flow chart, decide whether a particular wetland
system is appropriate for the site November 2003, 212 pages). View

or download atum ://www.itrcweb.ora/WTLND-1 .pdf .

Munitions Response Historical Records Review (UXO-2). This
document was prepared by The Interstate Technology & Regulatory
Council UXO Team. It is intended to serve as a guide for regulators,
stakeholders, and others involved in oversight or review of munitions
response historical records review (MR HRR) projects on munitions
response sites. The goals of this document are to educate state
regulators and other stakeholders on the purpose, content, and
terminology of MR HRRs; provide a uniform technical approach and
useful tools that are compatible with any regulatory framework or
authority for reviewing MR HRRs; and communicate state regulator
expectations to those planning, initiating, and executing MR HRRs
(November 2003, 70 pages). View or download at

http://www.itrcweb.ora/user/UXO-2.pdf .

National Emission Standards for Hazardous Air Pollutants
(NESHAP) From Site Remediations were promulgated in the
Federal Register on October 8, 2003 (vol. 68, No. 195, pp 58171 ff.).
The final rule implements the Clean Air Act (CAA) section 112(d) to
control emissions of hazardous air pollutants (HAP) at major sources
where remediation technologies and practices are used at the site to
clean up contaminated environmental media (e.g., soils,
groundwaters, or surface waters) or certain stored or disposed
materials that pose a reasonable potential threat to contaminate
environmental media. Site remediations subject to the final rule are
required to control emissions of organic HAP by meeting emissions
limitations and work practice standards reflecting the application of
maximum achievable control technology (MACT). To determine
whether a facility is subject to the final rule, one needs to carefully
examine the applicability criteria. The final rule amends 40 CFR part
63 by adding subpart GGGGG-National Emission Standards for
Hazardous Air Pollutants for Site Remediation (October 2003, 54
pages). View or download at http://clu-in.org/techpubs.htm .

Conferences and Symposia

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Designing, Building, & Regulating Evapotranspiration (ET)
Landfill Covers, March 9-10, Denver. This meeting is sponsored by
the Phytoremediation Action Team of the Remediation Technologies
Development Forum. At this meeting, presenters will share
information on federal and state-initiated programs demonstrating
and assessing the performance of ET covers, such as the U.S.
Environmental Protection Agency's Alternative Cover Assessment
Program (ACAP), and present information on ET cover design,
construction, monitoring, and regulation for remediation and final
closure at sites. For more information and to register, see

http://www,rtdf,ora/public/phvto/minutes/default,htm .

Groundwater Flow and Transport Modeling Optimization
Workshop

at the International Ground Water Monitoring Center (IGWMC)
March 17-19, Golden, CO. This course, sponsored by DoD and
EPA, is intended to increase awareness of environmental project
managers and the groundwater modeling community regarding the
use of modeling optimization to optimize pumping strategies for
real-world plume remediation problems. It will provide fundamental
concepts to all attendees (managers and modelers) during the first
day and then provide more detailed instruction on the use of two
codes: Simulation/Optimization Modeling System (SOMOS) and
Modular Groundwater Optimizer (MGO). Contact Sophia Seo at
IGWMC ( hseo@M ines.EDU ) or Yan Zhang at GeoTrans, Inc.

(vzhana@aeotransinc.com ) for course details.

Call for papers!! Vapor Intrusion Attenuation Workshop: A
Study of Observed Vapor Intrusion Attenuation, March 15-18,
San Diego. The U.S. EPA's Office of Solid Waste and Emergency
Response (OSWER) is requesting abstracts for a workshop on
subsurface vapor-to-indoor-air attenuation factors. This one and
one-half day workshop focuses specifically on what is known from
measurements about the attenuation factor and vapor attenuation
processes in the subsurface. This call for papers is for presentations
describing (1) preexisting and newly gathered attenuation-related
data sets, (2) methods for correctly and effectively sampling and
analyzing soil gas and indoor air data in the context of a vapor
intrusion investigation, and (3) approaches for correctly interpreting
VI attenuation data in the light of background concentrations from
other vapor sources and site conditions that can impact results.
Interested parties should submit an abstract by January 15, 2004.
For more information on the workshop and abstract submission
guidelines, see httEV/cjuHrvorcj/tecJ^^ .

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Reminder CALL FOR ABSTRACTS!! Accelerating Site Cioseout,
Improving Performance, and Reducing Costs Through
Optimization, Dallas, June 15-17, 2004. This conference,
sponsored by member agencies of the Federal Remediation
Technologies Roundtable, will outline long-term remediation
liabilities and optimization needs and opportunities; disseminate
existing and emerging optimization strategies, technologies, tools
and science; communicate lessons learned; and present remedial
optimization within the context of site wide and multi-site
management programs. Abstracts for oral presentations must be
submitted by February 6, 2004. For information on how to submit an
abstract, a list of abstract topics, and how to register for the
conference, please visit http://clu-in.ora/siteopt .

Call for Papers!! US EPA I NGWA Fractured Rock Conference:
State of the Science and Measuring Success in Remediation,
September 2004. The conference is an international consortium of
engineers, scientists, regulators, responsible parties, researchers
and students gathering to understand the science of classical and
innovative remediation technologies. Case studies will focus on
federal, state and industrial sites contaminated by DNAPLs, other
organics, metals and radionuclides. The conference committee is
accepting abstracts for consideration on selected topics. The
deadline for abstract submission is February 14, 2004. For more
information on the abstract submission and the conference, see

http://www.nawa,ora/pdf/e/conf/0409135017cfp.pdf.

NOTE: We prefer to concentrate mainly on new documents and the
internet live events. However, we do support an area on CLU-IN
where announcement of conferences and courses can be regularly
posted. We invite sponsors to input information on their events at
http://clu-in.org/courses . Likewise, readers may visit this area for news of
upcoming events that might be of interest. It allows users to search
events by location, topic, time period, etc

If you have any questions regarding TechDirect, contact Jeff
Heimerman at (703) 603-7191 or ^merman. ieff@epa.aov. Remember, you
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