DuPont
Chambers
Works,
Deepwater,
NJ
Facility
Response
to
EPA
Questions
re:
TRI
Estimated
Releases
to
Water
May
4,
2005
1.
Where
do
the
discharges
of
chlorine,
heptachlor
and
pendimethalin
originate
from?
Is
it
from
plant
operations
(
manufacturing
processes)
or
from
the
centralized
waste
treatment
plant?
Are
the
pesticides
coming
from
off­
site
or
on­
site
wastewater?

These
compounds
are
associated
with
off­
site
waste
contracts.
It
is
assumed
that
the
inquiry
is
concerning
chlordane,
as
one
of
the
three
pesticides,
and
not
chlorine.

Also,
please
note
that
the
DuPont
Chambers
Works
has
a
single
WWTP
that
handles
offsite
customer
waste
receipts
and
on­
site
wastewater
from
plant
operations
and
treated
is
discharged
through
the
same
NJPDES
permitted
outfall.

2.
Does
DuPont
Chambers
Works
report
any
heptachlor
discharges
in
its
DMRs?

Heptachlor
is
monitored
on
a
quarterly
basis
along
with
other
priority
pollutants.
The
data
report
from
the
full
scan
of
priority
pollutants
is
submitted
as
an
attachment
with
the
DMR
reports.
In
most
cases,
heptachlor
is
not
detected.

Note
that
the
releases
for
heptachlor
and
other
compounds
only
infrequently
detected
are
estimated
for
TRI
reporting
purposes
by
a
Toxchem
model
calculation
using
a
worst­
case
influent
loading
value.
The
worst­
case
loading
input
is
based
on
the
maximum
levels
that
could
have
been
received
under
the
outside
waste
customer
contracts.

3.
What
other
chemicals
are
reported
released
(
to
TRI
or
PCS/
the
state)
from
the
CWT
plant?

Attached
table
lists
other
chemicals
that
were
reported
as
releases
to
water
under
TRI
that
are
associated
with
outside
waste
shipments.
It
is
assumed
that
this
addresses
the
question
re
"
CWT
plant".
Again,
note
that
wastewater
from
DuPont
site
operations
is
treated
in
this
same
facility
and
some
of
these
chemicals
are
also
associated
with
our
manufacturing
operations.
Chemicals
currently
regulated
under
40
CFR
414
(
OCPSF)
and
in
our
NJPDES
permit
(
reported
to
the
state/
PCS
database)
are:
Ammonia,
Benzene,
Chlorobenzene,
Dichlorobenzenes,
Ethylbenzene,
Hexachlorobenzene,
Nitrobenzene,
Phenol,
Toluene,
Chromium,
Copper,
Lead,
Nickel
and
Zinc.

Note
that
the
discharge
permit
will
be
reissued
soon
with
additional
pollutants
per
40
CFR
437
(
Centralized
Waste
Treatment).
CAS
#
Component
95­
95­
4
2,4,5­
Trichlorophenol
75­
05­
8
Acetonitrile
107­
18­
6
Allyl
Alcohol
7664­
41­
7
Ammonia
1912­
24­
9
ATRAZINE
71­
43­
2
Benzene
57­
74­
9
Chlordane
(
10
lbs)

108­
90­
7
Chlorobenzene
1319­
77­
3
Cresol
(
mixed
isomers)

110­
82­
7
Cyclohexane
25321­
22­
6
Dichlorobenzene
(
mixed
isomers)

Dioxins
(
in
grams)

100­
41­
4
Ethylbenzene
107­
21­
1
Ethylene
glycol
50­
00­
0
Formaldehyde
64­
18­
6
Formic
Acid
76­
44­
8
Heptachlor
(
10)

118­
74­
1
Hexachlorobenzene
67­
56­
1
Methanol
78­
93­
3
Methyl
ethyl
ketone
108­
10­
1
Methyl
isobutyl
ketone
68­
12­
2
N,
N­
Dimethyl
formamide
(
DMF)

71­
36­
3
n­
Butyl
alcohol
1929­
82­
4
NITRAPYRIN
98­
95­
3
Nitrobenzene
108­
95­
2
Phenol
1336­
36­
3
Polychlorinated
Biphenyls
(
10)

7632­
00­
0
Sodium
Nitrite
75­
65­
0
Tert­
butyl
alcohol
108­
88­
3
Toluene
121­
44­
8
Triethylamine
108­
38­
3
xylene,
m­

106­
42­
3
xylene,
p­

1330­
20­
7
xylene
CATEGORY
COMPOUNDS
AMMONIA
COMPOUNDS
N230
Certain
Glycol
Ethers
N90
Chromium
Compounds
N100
Copper
Compounds
CYANIDE
COMPOUNDS
N420
Lead
Compounds
N450
Manganese
Compounds
MERCURY
COMPOUNDS
(
10)

N495
Nickel
Compounds
N511
Nitrate
Compounds
N982
Zinc
Compounds
N590
Polycyclic
Aromatic
Compounds
