Document ID: EPA-HQ-OPPT-2003-0012-0155
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2003-07-30T04:00Z

Mary
Dominiak
07/
29/
2003
04:
27
PM
To:
Mary
Dominiak/
DC/
USEPA/
US@
EPA
cc:
Subject:
PFOA
ECA
Technical
Expert
Subgroup
Meeting
Materials
You
are
receiving
this
message
because
you
have
expressed
an
interest
in
receiving
information
concerning
the
Agency's
enforceable
consent
agreement
(
ECA)
process
on
perfluorooctanoic
acid
(
PFOA)
and
the
fluorinated
telomers,
OPPT­
2003­
0012.
If
you
no
longer
wish
to
receive
this
information,
please
reply
to
dominiak.
mary@
epa.
gov
requesting
that
you
be
removed
from
this
notification
list.

****************************************************************************************
TO:
PFOA
ECA
Technical
Workgroup
and
Plenary
Meeting
Attendees
Materials
are
attached
for
the
upcoming
meetings
of
the
technical
expert
Subgroups
chartered
at
the
PFOA
ECA
Technical
Workgroup
and
Plenary
meetings
on
July
9
and
10,
2003.
These
materials
consist
of
draft
statements
of
goals
and
objectives
for
each
Subgroup,
together
with
tentative
agendas
and
lists
of
anticipated
attendees
for
the
initial
Subgroup
meetings.

All
meetings
are
scheduled
at
EPA
Headquarters
in
the
EPA
East
Building,
1201
Constitution
Avenue,
NW,
Washington,
DC,
in
Room
4225.
The
phone
number
to
call
for
escort
up
to
the
room
is
202­
564­
4760.
The
Subgroup
initial
meetings
are
scheduled
as
follows:
Telomer
Incineration
Subgroup:
August
14,
2003,
9:
00
AM
to
noon

Telomer
Biodegradation
Subgroup:
August
14,
2003,
1:
00
PM
to
4:
00
PM

Telomer
Monitoring
Subgroup:
August
15,
2003,
9:
00
AM
to
4:
00
PM

Fluoropolymer
Incineration
Subgroup:
August
19,
2003,
9:
00
AM
to
4:
00
PM

Fluoropolymer
Aged
Articles
Subgroup:
August
20,
2003,
9:
00
AM
to
4:
00
PM

Fluoropolymer
Monitoring:
August
21,
2003,
9:
00
AM
to
4:
00
PM

If
you
are
not
currently
on
the
anticipated
attendee
list
but
plan
to
attend
one
or
more
of
the
Subgroup
meetings,
please
notify
me
as
soon
as
possible.
If
you
plan
to
attend
any
of
the
meetings
via
teleconference
rather
than
in
person,
please
notify
me
by
noon
on
August
5,
2003,
so
that
we
can
ensure
the
availability
of
sufficient
telephone
lines.

All
parties
are
encouraged
to
submit
comments
on
the
proposed
agendas,
as
well
as
any
background
or
proposal
materials
for
Subgroup
meeting
attendees
to
review
and
consider,
a
week
in
advance
of
the
meeting.
Parties
may
submit
comments
and
materials
directly
to
the
electronic
docket
at
www.
epa.
gov/
edocket/
(
using
the
"
Quick
Search"
feature
to
locate
docket
OPPT­
2003­
0012),
or
via
email,
fax,
or
courier
service
to
my
attention.
Materials
sent
to
my
attention
will
be
distributed
via
email
and
placed
in
the
docket.

If
you
have
any
questions
or
comments
concerning
these
matters,
or
any
difficulty
opening
the
attached
file,
please
contact
me.

Sincerely,

Mary
F.
Dominiak
U.
S.
Environmental
Protection
Agency
EPA
East,
Mail
Code
7405M
1200
Pennsylvania
Avenue,
NW
Washington,
DC
20460
Phone:
202­
564­
8104
Fax:
202­
564­
4775
Courier
deliveries:
1201
Constitution
Ave.,
NW,
Room
4410;
564­
4760
Straw
Technical
Subgroup
Materials
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Technical
Subgroup
on
Incineration
Test
Methods
for
Telomers
Introduction
The
PFOA
ECA
Plenary
session
held
on
July
10,
2003,
approved
an
action
plan
for
the
Telomer
Workgroup
to
form
a
Technical
Subgroup
on
Incineration
test
methods.
This
subgroup
will
assess
the
adequacy
of
available
incineration
test
methods
to
provide
data
on
telomer
degradation
and
the
concurrent
formation
of
by­
products
that
may
result
during
the
process
on
incineration.
Where
needed,
specific
approaches
to
address
the
unique
characteristics
of
telomers
and
telomer
based
polymers
will
be
incorporated
into
the
test
protocol(
s).

Goals
/
Objectives
The
goals
of
this
Technical
Subgroup
on
Incineration
Test
Methods
for
Telomers
are:

1)
Identify
scope
and
goals
of
proposed
incineration
testing
2)
Develop
a
testing
protocol,
supporting:
a.
Thermogravimetric
analysis
to
define
gasification
temperature
per
ASTM
E1641.
b.
Laboratory
Scale
Thermal
Degradation
Test:
per
the
3M
protocol
[
OPPT­
2003­
0012­
0151]
as
developed
by
the
University
of
Dayton
3)
Identify
intermediate
temperatures
at
which
to
run
the
test,
so
as
to
satisfy
other
incineration
regimes
(
e.
g.,
across
a
variety
of
incinerator
types;
sub­
optimal
operating
scenarios).

4)
Develop
methods
that
will
yield
the
temperature
needed
to
provide
99.99%
destruction
of
each
telomer
test
substance
at
a
residence
time
of
2
seconds
in
the
high
temperature
zone.

5)
Identify
a
list
of
representative
telomers
and/
or
other
telomer­
treated
materials
for
incineration
testing.

6)
Report
back
to
the
Telomer
Workgroup
regarding
incineration
testing
details
that
could
be
incorporated
into
an
Enforceable
Consent
Agreement
(
ECA)
for
testing
specific
telomer
chemicals
and/
or
other
telomer­
treated
materials.

Meetings
Meetings
will
be
held
at
EPA
Headquarters
in
Washington,
DC.
The
initial
meeting
will
be
from
9:
00
to
noon
on
Thursday,
August
14,
2003.
Attendance
may
be
via
conference
call
or
in
person.
Meeting
materials
will
be
distributed
one
week
in
advance
of
the
meeting.
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Technical
Subgroup
on
Incineration
Test
Methods
for
Telomers
Tentative
Agenda
 
First
Meeting
Thursday,
August
14,
2003
9:
00
AM
to
Noon
EPA
East,
Room
4225
1201
Constitution
Avenue,
NW
Washington,
DC
20460
 
Discussion
of
Goals
/
Objectives
 
Comments
on
Adequacy
of
Existing
Incineration
Test
Protocol
 
Key
Protocol
Elements
°
Test
Temperatures
°
Residence
time
°
Other
S
Proposed
Methods
Modifications
S
Polymers/
chemicals
to
be
tested
&
criteria
for
choosing
selected
materials
S
Data
Quality
Considerations
 
Next
Steps
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Anticipated
Attendees
for
Telomer
Incineration
Subgroup
Meeting
John
Heinze,
Environmental
Health
Research
Foundation
Hiro
Iwai
or
Masahiro
Noguchi,
Daikin
Satoshi
Komatsu,
Daikin
Ed
Lampert,
Daikin
Yukiko
Nishiyama,
Daikin
Robert
Giraud,
DuPont
Bob
Buck,
DuPont
Steve
Korzeniowski,
DuPont
John
Blouin,
EPA/
EETD
Eric
Stewart,
EPA/
ORD
Greg
Fritz,
EPA/
EETD
Ward
Penberthy,
EPA/
CCD
Ed
Heithmar,
EPA/
ORD
Zhishi
Guo,
EPA/
ORD
Rich
Leukroth,
EPA/
CCD
Wendy
Hoffman,
EPA/
EETD
(
Observer:
Julie
Eble,
CPS
[
TRP])
(
Observer:
Katie
Smythe,
RAND
[
TRP])
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Technical
Subgroup
on
Biodegradation
Test
Methods
for
Telomers
Introduction
The
PFOA
ECA
Plenary
session
held
on
July
10,
2003,
approved
an
action
plan
for
the
Telomer
Workgroup
to
form
a
Technical
Subgroup
on
Biodegradation
Test
Methods.
This
subgroup
will
assess
the
adequacy
of
available
biodegradation
test
methods
to
inform
telomer
degradation
and
to
develop,
where
needed,
new
test
methods
or
approaches
to
address
the
unique
characteristics
of
telomers
and
telomer­
based
polymers.

Goals
/
Objectives
The
goals
of
this
Technical
Subgroup
on
Biodegradation
Test
Methods
for
Telomers
are:

1)
Develop
an
approach
for
testing
to
determine
the
rate
and
extent
of
biodegradation
of
representative
telomers
and
telomer
based
polymers
to
PFOA
and
other
degradation
products.

(
2)
Modify
existing,
or
develop
new
protocol(
s)
for
biodegradation
testing
of
telomers
and
telomer
based
polymers
in:

(
a)
aerobic
and
anaerobic
soils,
(
b)
aerobic
and
anaerobic
aquatic
sediment
systems,
(
c)
activated
sludge
wastewater
treatment
systems,
and
(
d)
anaerobic
sludge
digestors
(
3)
Report
back
to
the
Telomers
Workgroup
regarding
the
details
of
testing
standards
for
incorporation
into
an
Enforceable
Consent
Agreement
(
ECA)
for
testing
representative
telomers
and
telomer
based
polymers
of
interest.

Meetings
The
first
meeting
of
the
Subgroup
will
be
held
at
EPA
Headquarters
in
Washington,
DC
on
Thursday,
August
14,
2003,
from
1:
00
to
4:
00
PM.
Attendance
may
be
via
conference
call
or
in
person.
Meeting
materials
will
be
distributed
one
week
in
advance
of
the
meeting
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Technical
Subgroup
on
Biodegradation
Test
Methods
for
Telomers
Tentative
Agenda
­
First
Meeting
Thursday,
August
14,
2003
1:
00
PM
to
4:
00
PM
EPA
East,
Room
4225
1201
Constitution
Avenue,
NW
Washington,
DC
20460
 
Review
of
Subgroup
Goals
/
Objectives
 
Discussion
of
Utility
of
Existing
Biodegradation
Test
Protocols
for
Evaluation
of
Telomers
and
Telomer
Based
Polymers
 
Consideration
of
Key
Protocol
Elements
°
Test
Conditions/
Procedures
°
Test
Duration
°
Mass
Balance
°
Analytical
Procedures
°
Other
 
Identification
of
Test
Methods
Modification
Needs
 
Data
Quality
Considerations
 
Test
Method
Development
Schedule
 
Next
Steps
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Anticipated
Attendees
for
Telomer
Biodegradation
Subgroup
Meeting
Rich
Purdy
Treye
Thomas,
CPSC
John
Heinze,
Environmental
Health
Research
Foundation
Volker
Koch,
Clariant
Hiro
Iwai,
Daikin
Satoshi
Komatsu,
Daikin
Ed
Lampert,
Daikin
Yukiko
Nishiyama,
Daikin
Bob
Buck,
DuPont
Bill
Berti,
DuPont
John
Gannon,
DuPont
Steve
Korzeniowski,
DuPont
David
Lynch,
EPA/
EETD
Bob
Boethling,
EPA/
EETD
Andy
Mamantov,
EPA/
EETD
Greg
Fritz,
EPA/
EETD
Laurence
Libelo,
EPA/
EETD
Ward
Penberthy,
EPA/
CCD
Eric
Weber,
EPA/
ORD
Tim
Collette.
EPA/
ORD
Ed
Heithmar,
EPA/
ORD
Rich
Leukroth,
EPA/
CCD
Wendy
Hoffman,
EPA/
EETD
(
Observer:
Barbara
Smyser,
CPS
[
TRP])
(
Observer:
Katie
Smythe,
RAND
[
TRP])
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Technical
Subgroup
on
Incineration
Test
Methods
for
Fluoropolymers
Introduction
The
PFOA
ECA
Plenary
session
held
on
July
10,
2003,
approved
an
action
plan
for
the
Fluoropolymer
Workgroup
to
form
a
Technical
Subgroup
on
Incineration
Test
Methods.
This
subgroup
will
assess
the
adequacy
of
available
incineration
test
methods
so
as
to
inform
a
technical
assessor
on
the
details
of
fluoropolymer
degradation
and
the
concurrent
formation
of
by­
products
of
that
process.
Where
needed,
specific
approaches
to
address
the
unique
characteristics
of
fluoropolymers
and
fluoropolymer­
based
polymers
will
be
agreed
upon.

Goals
/
Objectives
The
goals
of
this
Technical
Subgroup
on
Incineration
Test
Methods
for
Fluoropolymers
are:

1)
Identify
the
scope
and
goals
of
proposed
incineration
testing
2)
Develop
a
testing
protocol,
supporting:
a.
Thermogravimetric
analysis
to
define
gasification
temperature
per
ASTM
E1641.
b.
Laboratory
Scale
Thermal
Degradation
Test:
per
the
3M
protocol
[
OPPT­
2003­
0012­
0151]
as
developed
by
the
University
of
Dayton
3)
Identify
intermediate
temperatures
at
which
to
run
the
test,
so
as
to
satisfy
other
incineration
regimes
(
e.
g.,
across
a
variety
of
incinerator
types;
sub­
optimal
operating
scenarios).

4)
Develop
methods
that
will
yield
the
temperature
needed
to
provide
99.99%
destruction
of
each
fluoropolymer
test
substance
at
a
residence
time
of
2
seconds
in
the
high
temperature
zone.

5)
Identify
a
list
of
representative
fluoropolymers
and/
or
other
materials
for
incineration
testing.

6)
Report
back
to
the
Fluoropolymers
Workgroup
regarding
the
details
of
testing
details
that
could
be
incorporated
into
an
Enforceable
Consent
Agreement
(
ECA)
for
testing
fluoropolymers
and/
or
fluoropolymer­
treated
materials.

Meetings
Meetings
will
be
held
at
EPA
Headquarters
in
Washington,
DC.
The
initial
meeting
will
be
from
9:
00
to
4:
00
on
Tuesday,
August
19,
2003.
Attendance
may
be
via
conference
call
or
in
person.
Meeting
materials
will
be
distributed
one
week
in
advance
of
the
meeting.
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Technical
Subgroup
on
Incineration
Test
Methods
for
Fluoropolymers
Tentative
Agenda
 
First
Meeting
Tuesday,
August
19,
2003
9:
00
AM
to
4:
00
PM
EPA
East,
Room
4225
1201
Constitution
Avenue,
NW
Washington,
DC
20460
 
Discussion
of
Goals
/
Objectives
 
Comments
on
Adequacy
of
Existing
Incineration
Test
Protocol
 
Key
Protocol
Elements
°
Test
Temperatures
°
Residence
time
°
Other
S
Proposed
Methods
Modifications
S
Polymers/
chemicals
to
be
tested
&
criteria
for
choosing
selected
materials
S
Data
Quality
Considerations
 
Next
Steps
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Anticipated
Attendees
for
Fluoropolymer
Incineration
Subgroup
Meeting
John
Heinze,
Environmental
Health
Research
Foundation
Taka
Nakamura,
Daikin
TWG
(
fluoro­
technical)
Masahiro
Noguchi,
Daikin
Robert
Giraud,
DuPont
Noel
Misa,
Asahi
Glass
FMG
(
strategic/
business)
Lynne
Harris,
SPI
Phil
Taylor,
University
of
Dayton
(
Expert)
John
Blouin,
EPA/
EETD
Eric
Stewart,
EPA/
ORD
Ward
Penberthy,
EPA/
CCD
Ed
Heithmar,
EPA/
ORD
Zhishi
Guo,
EPA/
ORD
Rich
Leukroth,
EPA/
CCD
Wendy
Hoffman,
EPA/
EETD
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Analysis
of
Aged
Fluoropolymer
Articles
Technical
Subgroup
Tentative
Agenda
 
First
Meeting
Wednesday,
August
20,
2003
9:
00
AM
to
4:
00
PM
EPA
East,
Room
4225
1201
Constitution
Avenue,
NW
Washington,
DC
20460
FMG
proposes
that
the
initial
meeting
of
this
subgroup
will
focus
on
reviewing
the
selection
criteria
for
aged
articles.

Subsequent
meetings
propose
to
focus
on
test
methods
for
aged
articles.

Anticipated
Attendees
for
Aged
Fluoropolymer
Articles
Technical
Subgroup
Meeting
Rich
Purdy
Patte
Bittner,
CPSC
John
Heinze,
Environmental
Health
Research
Foundation
Bill
Buxton,
DuPont
TWG
George
Millet,
Dyneon
TWG
Joan
Sylvain
Baughan,
Keller
&
Heckman
(
Expert)
David
Rurak,
DuPont
FMG
David
Sarvadi,
Keller
&
Heckman
Allen
Weidman,
SPI/
FMG
Conrad
(
Skip)
Flessner,
EPA/
EETD
Greg
Fritz,
EPA/
EETD
Zhishi
Guo,
EPA/
ORD
Barbara
Leczynski,
EPA/
CCD
Ward
Penberthy,
EPA/
CCD
Ross
Highsmith,
EPA/
ORD
Ed
Heithmar,
EPA/
ORD
Rich
Leukroth,
EPA/
CCD
Jasbir
Sarna,
EPA/
EETD
Wendy
Hoffman,
EPA/
EETD
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Environmental
Monitoring
Technical
Telomer
and
Fluoropolymer
Subgroups
Introduction
At
the
Technical
Workgroup
meeting
on
July
9,
2003
and
the
Plenary
session
held
on
July
10,
2003,
the
group
agreed
in
principle
that
additional
work
is
needed
to
define
the
goals
and
scope
of
PFOA
and
PFOA
precursor
monitoring
efforts.
EPA
committed
to
developing
a
straw
schedule
for
telomer
and
fluoropolymer
monitoring
subgroup(
s)
to
meet
to
discuss
environmental
sampling
and
monitoring
for
PFOA
and
PFOA
precursors.

Goals
The
goals
of
the
Telomer
and
Fluoropolymer
Monitoring
Subgroup(
s)
are:

1)
Develop
an
understanding
of
how
environmental
sampling
and
monitoring
fit
into
the
overall
objective
of
understanding
how
PFOA
and
PFOA
precursors
are
released
into
the
environment,
their
fate
and
transport
once
released,
and
routes
of
human
and
environmental
exposure.

2)
Identify
specific
questions
that
can
be
addressed
by
environmental
sampling
and
monitoring.

3)
Assess
how
current
LOI
environmental
sampling
and
monitoring
complements
(
2)
above,
and
whether
additional
sampling/
monitoring
may
be
necessary.

4)
Report
back
to
the
PFOA
ECA
Monitoring
Technical
Workgroup
in
September
2003.

Meetings
Meetings
will
be
held
at
EPA
Headquarters
in
Washington,
DC.
The
first
meeting
of
the
subgroup
is
scheduled
from
9:
00
to
4:
00
on
August
15,
2003,
to
discuss
telomer
monitoring.
The
second
subgroup
is
scheduled
from
9:
00
to
4:
00
on
August
21,
2003,
to
discuss
fluoropolymer
monitoring.
All
parties
are
encouraged
to
attend
in
person,
if
possible,
but
teleconference
facilities
will
be
arranged
for
those
unable
to
travel.
EPA
requests
that
all
interested
parties
submit
any
presentation
or
discussion
material
for
general
distribution
one
week
prior
to
the
meetings.
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Environmental
Monitoring
Technical
Subgroups
Tentative
Agenda
 
First
Meetings
Telomer
Monitoring
Subgroup
Friday,
August
15,
2003
9:
00
AM
to
4:
00
PM
Fluoropolymer
Monitoring
Subgroup
Thursday,
August
21,
2003
9:
00
AM
to
4:
00
PM
EPA
East,
Room
4225
1201
Constitution
Avenue,
NW
Washington,
DC
20460
1.
Discussion
of
how
environmental
sampling
and
monitoring
fit
into
the
overall
objective
of
understanding
how
PFOA
and
PFOA
precursors
are
released
into
the
environment,
their
fate
and
transport
once
released,
and
routes
of
human
and
environmental
exposure.

2.
Identification
of
specific
questions
that
can
be
addressed
by
environmental
sampling
and
monitoring.

3.
Assessment
of
how
current
LOI
activities
complement
the
goals
and
questions
identified
by
the
parties
in
(
1)
and
(
2).

4.
Identification
of
potential
additional
environmental
sampling
and
monitoring
activities
that
could
achieve
the
goals
and
answer
the
questions
identified
by
the
parties
in
(
1)
and
(
2).

5.
Identification
of
next
steps.
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Anticipated
Attendees
for
Telomer
Monitoring
Subgroup
Meeting
Friday,
August
15,
2003
Bob
Griffin,
Little
Hocking
Water
Association
Rich
Purdy
Treye
Thomas,
CPSC
John
Heinze,
Environmental
Health
Research
Foundation
Rob
Bilott,
WV
Plaintiffs
David
Menotti,
Asahi
Glass
Takayuki
Nakamura,
Daikin
Randy
Roussel,
Daikin
Satoshi
Komatsu,
Daikin
Ed
Lampert,
Daikin
Yukiko
Nishiyama,
Daikin
Bob
Buck,
DuPont
John
Gannon,
DuPont
Steve
Korzeniowski,
DuPont
Tim
Bingman,
DuPont
Alan
Vicory,
Ohio
River
Valley
Water
Sanitation
Commission
Linda
Aller,
Bennett
&
Williams
Steve
Williams,
Ohio
EPA
Phil
Oshida,
EPA/
CCD
Laurence
Libelo,
EPA/
EETD
Conrad
(
Skip)
Flessner,
EPA/
EETD
Ross
Highsmith,
EPA/
ORD
John
Blouin,
EPA/
EETD
Barbara
Leczynski,
EPA/
CCD
Ward
Penberthy,
EPA/
CCD
Linda
Sheldon,
EPA/
ORD
Tim
Collette,
EPA/
ORD
Ed
Heithmar,
EPA/
ORD
Rich
Leukroth,
EPA/
CCD
Wendy
Hoffman,
EPA/
EETD
(
Observer:
Katie
Smythe,
RAND
[
TRP])
U.
S.
Environmental
Protection
Agency
Draft,
July
29,
2003
Anticipated
Attendees
for
Fluoropolymer
Monitoring
Subgroup
Meeting
Thursday,
August
21,
2003
Bob
Griffin,
Little
Hocking
Water
Association
Rich
Purdy
Treye
Thomas,
CPSC
John
Heinze,
Environmental
Health
Research
Foundation
Rob
Bilott,
WV
Plaintiffs
Alan
Vicory,
Ohio
River
Valley
Water
Sanitation
Commission
Linda
Aller,
Bennett
&
Williams
Steve
Williams,
Ohio
EPA
George
Millet,
Dyneon
TWG
Mike
Santoro,
3M
(
Expert)
Bob
Sussman,
Latham
&
Watkins
(
3M)
David
Rurak,
DuPont
FMG
John
Gannon,
DuPont,
Environmental
Fate
&
Effect
(
Expert)
Cathie
Barton,
DuPont,
Air
Modeling
Charlie
Zarzecki,
DuPont,
Air
Modeling
Andrew
Hartten,
DuPont,
Water/
Soil
Monitoring
David
Sarvadi,
Keller
&
Heckman
Allen
Weidman,
SPI/
FMG
Phil
Oshida,
EPA/
CCD
Laurence
Libelo,
EPA/
EETD
Conrad
(
Skip)
Flessner,
EPA/
EETD
Ross
Highsmith,
EPA/
ORD
John
Blouin,
EPA/
EETD
Barbara
Leczynski,
EPA/
CCD
Ward
Penberthy,
EPA/
CCD
Linda
Sheldon,
EPA/
ORD
Tim
Collette,
EPA/
ORD
Ed
Heithmar,
EPA/
ORD
Rich
Leukroth,
EPA/
CCD
Wendy
Hoffman,
EPA/
EETD