
?
Need
to
return
call
by
/
at/
between
and
.
Signature:
Project
No.:
0172.01.005.060
DISTRIBUTION
Page
__
1_
of
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1_

Project
Name:
304(
m)
OCPSF
Detailed
Study
TELEPHONE
CALL
RECORD
Outgoing
Call
Date:
1/
5/
04
Time:
11
a.
m.

Company
Name:
EPA
OPPT
Phone
No.:
202­
566­
1977
Contact
Name:
Ellie
Ku
Codding
Phone
No.:
703­
633­
1673
Name:
Dwain
Winters
Eastern
Research
Group,
Inc.

GENERAL
SUBJECT
:
Dioxins
at
OCPSF
Sites
TOPICS
DISCUSSED
AND
ACTION
TAKEN
I
called
Mr.
Dwain
Winters,
who
works
in
OPPT's
National
Program
Chemical
Division.
He
is
expecting
data
from
the
chlorine
chemical
industry
in
the
next
few
weeks.
The
contractors
doing
the
work
for
the
chemical
industry
are
Amendola
Engineering
and
Patrick
Dyke
(
out
of
the
UK).
He
will
e­
mail
me
when
the
data
are
available.
The
data
include
actual
monitoring
of
dioxin
congeners
for
the
chlorine
chemical
industry.

We
spoke
at
length
regarding
generation
of
dioxin
and
the
National
Program
Chemicals
Division
(
NPCD).
I
asked
about
the
NPCD,
which
develops
and
manages
multi­
media
regulatory
and
non­
regulatory
control
programs
and
other
private
or
public
sector
initiatives
to
reduce
and
manage
risks
from
designated
National
Program
Chemicals
(
NPCs)
or
other
priority
risk
management
chemicals
within
OPPT.
The
chemicals
include
dioxin,
PCBs,
and
other
chemicals.
Then
NPCD
can
move
for
initiatives
or
programs
that
would
decrease
the
amount
of
the
target
NPC
under
TSCA
authority.

I
asked
Dwain
how
his
inventory
fits
in.
Dwain
said
that
he
does
the
dioxins
inventory:
he
collects
available
dioxin
data
for
the
National
Dioxins
Inventory.
OPPT
did
the
first
dioxins
inventory
in
1987,
another
in
1995,
and
they
will
complete
and
publish
the
2000
dioxins
inventory
in
Spring
2004.
(
For
previous
inventories,
see
http://
cfpub.
epa.
gov/
ncea/
cfm/
recordisplay.
cfm?
deid=
55405).
The
primary
goal
is
to
come
up
with
an
accurate
inventory
of
dioxin.
The
dioxin
inventory
is
part
of
the
OPPT
chemical
reassessment
effort,
which
came
from
the
Stockholm
Persistent
Organic
Pollutants
(
POPs)
treaty.
Congress
has
not
ratified
it
yet.
After
they
do,
in
another
2
years
there
would
be
a
National
Implementation
Plan.
The
treaty
requires
countries
to
identify
and
enumerate
sources
of
certain
chemicals,
determining
if
they
are
"
Significant"
or
"
Insignificant"
sources.
The
focus
is
on
exposure,
and
water
discharges
are
important
means
for
exposure,
in
terms
of
entry
into
the
food
chain.

Right
now
he
is
still
receiving
data
from
almost
all
the
manufacturers
in
the
Chlorine
Chemical
Industry.
He
starts
with
TRI
data,
which
are
mostly
theoretically
estimated,
not
actual
measurements.
To
get
representative
and
actual
testing,
the
chlorine
chemical
companies
themselves
hired
independent
contractors
to
test
the
air,
solids,
and
water
streams:
Gary
Amendola
and
Patrick
Dyke
(
out
of
the
UK).
Dwain
expects
to
receive
their
?
Need
to
return
call
by
/
at/
between
and
.
Signature:
data
in
the
next
few
weeks.

I
asked
him
what
he
had
seen
as
points
of
generation
for
dioxin.
He
said
one
new
addition
of
processes
that
generate
dioxin
(
new
in
the
last
few
years)
is
titanium
dioxide
manufacture.
I
asked
him
if
he
had
any
ideas
about
ways
of
minimizing
the
generation
and
discharge
of
dioxin,
particularly
in
wastewater,
from
any
of
the
chemical
processes,
including
petroleum
refining.

He
said
that
what
they
are
really
seeing
is
materials
in
the
wastewater
treatment
system,
including
sludge
disposal.
Titanium
dioxide
is
a
large
area
of
waste
generation.

I
asked
him
about
wood
preservers
and
PCP
manufacturers.
He
said
there
are
2
PCP
manufacturers
(
Vulcan
is
the
main
one,
with
Wichita
being
the
biggest
plant).
The
wood
preservers
pressurize
the
wood
while
coated
with
the
PCP
mixed
with
oil.
The
PCP
is
forced
into
the
wood,
then
they
vacuum
express
the
oil
and
then
dry
the
wood.
The
residual
trace
dioxin
in
the
PCP
that
is
vacuumed
out
and
disposed
is
the
dioxin
source.
The
said
for
PCP,
almost
all
the
dioxin
is
octadibenzo(
p)
furan
or
dioxin,
which
both
have
the
same
TEF
of
110,000.
He
said
that
they
might
also
have
some
heptas,
too.

Integrated
chemical
facilities
probably
have
a
discrete
component
(
chlor
alkali,
EDC,
VCM,
and/
or
PVC),
but
the
wastestreams
are
not
necessarily
segregated.
More
particulate
removal
upstream
and
potential
carbon
treatment
would
help.
I
asked
if
he
knew
anyone
who
was
doing
the
particulate
removal,
and
he
didn't
know
off
hand.

He
said
that
petroleum
refiners
did
a
study
to
see
what
caused
formation
of
dioxins,
determining
that
he
old
batch
process
was
the
biggest
problem.
The
semicontinuous
and
continuous
don't
have
nearly
as
much
of
a
problem.
He
said
that
the
Tosco
refinery
in
San
Francisco
Bay
has
particulate
removal
prior
to
biological
treatment,
and
that
most
facilities
had
moved
towards
that
within
the
last
6
years.
Dioxins
were
discovered
8
years
ago
in
refineries.

He
said
that
this
inventory
is
the
first
cut
at
the
chlorinated
aliphatics
in
addition
to
EDC/
VCM:
chlorobenzenes,
PCP,
and
phenolic
herbicides.

Other
categories
include
titanium
dioxide
and
POTWs.
POTWs
find
d's
and
f's
in
their
sludge,
so
there
must
be
some
in
the
wastewater.

Another
operation
that
they
want
to
include
next
time
is
the
primary
and
secondary
metals
industry.
For
example,
iron
and
steel
cokemaking
and
sintering
have
the
potential
to
for
dioxins
(
chlorine
gas
in
the
air
reacts
during
cooling
of
sintering
materials).

He
said
it
is
most
often
the
trace
chemistry
that
determines
the
dioxin
generation,
not
the
manufacturing
chemistry.
Another
new
avenue
to
examine
is
the
formation
of
dioxin
from
hexachlorobenzene
at
high
temperatures.

I
asked
him
if
he
would
be
moving
for
a
dioxins
initiative,
and
he
explained
that
he
does
the
inventory
part
of
the
equation.
The
control/
reduction
part
would
be
done
under
POPs.
