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United States
Environmental Protection Agency
Office of Research and Development
Office of Solid Waste and
Emergency Response
Technology Transfer
Seminar Series
Monitored Natural
Attenuation for
Ground Water
March 9-10, 1999
New York, NY
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Purpose
The scientific understanding of natural attenuation
processes continues to evolve, and interest in the
use of monitored natural attenuation (MNA) at conta-
minated sites has increased significantly. The term
"monitored natural attenuation" as defined in the U.S.
Environmental Protection Agency's (U.S. EPA's)
Directive 9200.4-17 refers to the reliance on natural
processes that include various physical, chemical, or
biological processes that, under favorable conditions,
act without human intervention to reduce the mass,
toxicity, mobility, volume, or concentration of contami-
nants in ground water. These in situ processes
include biodegradation, dispersion, dilution, sorption,
volatilization, and chemical or biological stabilization,
transformation, or destruction of contaminants. The
U.S. EPA and the U.S. Geological Survey will present
a seminar on the technical issues associated with the
various natural attenuation processes as they may
occur in ground water.
Audience
This seminar will interest those in the environmental
scientific and engineering fields who are evaluating
monitored natural attenuation as part of remediation
strategy for contaminated ground-water sites.
Registration
These seminars are being presented free of charge.
Because attendance is on a first-come, first-served
basis and is limited to 450 people per seminar, pre-
registration is required. You will receive confirmation
information, including detailed logistical information
and a preliminary agenda, within 2 weeks of register-
ing. For additional seminar information, contact
Eastern Research Group, Inc.'s (ERG's), Registration
Office at 781-674-7374 between 9:00 a.m. and 5:00
p.m. Eastern Time.
To register:
Mail the attached registration form to Meg Vrablik,
ERG, Inc., 110 Hartwell Avenue, Lexington, MA
02421-3136; or
Fax the attached registration form to Meg Vrablik at
781-674-2906; or
Register via the Internet by visiting the U.S. EPA
Center for Environmental Research Information's
(CERI's) home page at http://www.epa.gov/ttbnrmrl/
and clicking on "Seminar Series—Monitored Natural
Attenuation for Ground Water." Note: CERI's home
page will also provide updated information on the pre-
sentation of the seminar for the New York City area.
Hotel information
A block of rooms has been reserved at the following
hotel. These rooms will be issued on a first-come,
first-served basis and held until the cutoff date indi-
cated in the following. Reserve rooms directly with
the hotel, and reference the "EPA Natural Attenuation
Seminar" to receive the special room rate.
Seminar Location
The Roosevelt Hotel
Madison Avenue at 45th Street
New York, NY 10017
212-661-9600
Cutoff date for reservations: February 18, 1999
Single or double: $198.00 (plus 13.25% tax and a
$2.00 occupancy tax per room)
Seminar Agenda
The meeting will begin at 8:30 a.m. and adjourn at
5:00 p.m. on both days. Preregistration will begin at
7:30 a.m. at each location. A detailed agenda will be
provided in the confirmation package.
Pay One
Background on Monitored Natural
Attenuation (MNA)
• U.S. EPA Office of Solid Waste and Emergency
Response Directive
• Trends in the Use of MNA
• Framework for Use of MNA
• Source Control
• Monitoring—Site Characterization
• Conceptual Models
•Monitoring—Validation/Verification
• Predictive Models
« Monitoring—To Closure
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Biological and Qeochemical Context for
MNA
• Biological Processes
• Petroleum Hydrocarbons
• Oxygenates
• Chlorinated Solvents
• Metals
• Geochemical Processes
• Redox Zonation and Biodegradation Efficiency
• Geochemical Screening Process
(geological and Hvdrological Context for
Natural Attenuation
• Rate of Transport vs. Rate of Degradation
• Natural Attenuation Coefficient
• 3-D Characterization of Ground Water Flow
• Variability in Ground Water Flow Directions
• Estimating Hydrogeologic Parameters
Site Characterization and Data
Interpretation
• Thermo Chem Case Study
Bay Two
Estimating Biodegradation and Attenuation
Rate Constants
• Extracting Rate Constants from Attenuation Along
Flow Paths
• Microcosm Studies
• Literature Review
• Calibration of Decision Support Models
(Bioscreen)
Risk Management of KANA
• Treatment Train Approach
• Role of Source Control/Source Removal
• Role of Predictive Models
Sampling, Analysis, and Monitoring to
Evaluate MNA
• Contaminants
• Degradation Products
• Redox Parameters .
Checklist for MNA
Discussion with Participants and Speakers
Seminar Registration Form
§^®nitoreci Natural Attenuation
for Ground Water
Please register me for the following seminar:
Q March 9-10, 1998
New York, NY
Affiliation:
Q U.S. EPA
Q Other federal agency
Q State EPA
Q Local government
Q Academia
Name.
Title
Q Vendor
Q Industry
Q Contractor
Q Other
Organization
Address/Mail Code
City/State/Zip Code
Telephone
Fax
E-Mail
Mail or fax registration to:
Eastern Research Group, Inc.
c/o Meg Vrablik
110 Hartwell Avenue
Lexington, MA 02421 -3136
781-674-7374
Fax: 781-674-2906
Register online via http://www.epa.gov/ttbnrmrl/
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QJ
§
i
Monitored Natural Attenuation for Ground
Water Seminars
c/o Meg Vrablik
Eastern Research Group, Inc.
11 OHartwell Avenue
Lexington, MA 02421-3136
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