201706201140

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Michael E. Mayberry
E.I. Dupont de Nemours & Co., Inc.
P.O. Drawer Z
Fayetteville, North Carolina 28302
Dear Mr. Mayberry:
July 25, 1996
Subject: Permit Issuance
NPDES Permit NC0003573
E.I. Dupont - Fayetteville Works
Bladen County
In accordance with your application for discharge permit received on December 1, 1995, we are
forwarding herewith the subject State - NPDES permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the US Environmental Protection Agency dated December 6, 1983.
In response to DuPont's draft permit comment letters dated June 6, 1996 and July 22, 1996, the
following modifications/comments are offered:
Supplement to Permit Cover Sheet -
• The spelling of "neutralization" has been corrected.
• The specified reference in the permit applicarion was not found. The wastewater treatment
system description has been modified as described in the Regional Office's staff report.
• The description of wastewaters discharged at Outfall 002 has been revised as requested.
• Designation of Outfall 004 as Outfall 003 - The compliance database does not allow an inactive
outfall to be reactivated for a different wastestream. In order to avoid confusion with
stormwater Outfalls 004 and 005, Outfall 006 will be specified for Nasion® area wastestreams.
Outfall 001 -
• The outfall description now includes the Butacite® process, Dymetrol® and BCH Energy
projects.
BODS and TSS Limits The flow basis for these limits was
along -term flow average of 0.832.
MGD based on the period of 1991 - 1995. The EPA guidance cited in a November 1992
Division memorandum was superseded by 58 Federal Register 36891, published July 9, 1993.
This guidance specified using the long-term average flow when applying effluent guidelines.
Since flows from the more recent period of May 1994 through April 1996 are more
representative of current production, limits for BODS and TSS have been revised using the
long-term average flow of 0.948 MGD.
P.O. Box 29535, Raleigh, Nort
h Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

• Monitoring for Total IN and Total Phosphorus - These requirements have been moved
to outfall 002 since that is the combined outfall to the Cape Fear River.
• OCPSF Priority Pollutant Limits -The mass limits have been revised utilizing the 0.948 MGD
flow previously discussed.
Outfa11002 -
• Narrative -This has been modified to include Nafion® and BCH Energy Project
wastestreams.
•Fluoride Daily Maximum Limit - A fluoride daily maximum limit of 7,9171b/day has been .
specified in the permit based on the State water quality standard of 1.8 mg/1 and a wasteflow of
36,000 gpd.
•Monitoring for Total Nitrogen and Total Phosphorus -These requirements have been
transferred from outfall 001.
• Instream Monitoring Requirements -The monitoring frequency for temperature has been
corrected to weekly to match dissolved oxygen (DO) and conductivity. The reference for
instream fluoride monitoring has been moved from footnote "*" to footnote . The
upstream sampling location has been modified to Dupont's river pump station, however, DO,
temperature and conductivity maintain their upstream sampling requirement designation in this
permit since it is still Dupont's responsibility to provide this data even if itis measured by PWC
- Fayetteville. Dupont may attach PWC's downstream sampling data with their own DMR's, or
enter PWC's downstream data on Dupont's upstream DMR form in submitting this instream
monitoring data. Finally, the downstream sampling location has been modified to 4500 feet
downstream of Prospect Hall Landing as requested.
Outfa11006 (Outfa11004 in Draft Permit) -
• As discussed previously, Outfa11004 will be redesignated as Outfall 006 to avoid confusion
with Dupont's stormwater outfalls.
• Narrative This
has been modified to cover all Nafion® low biodegradable process
wastewaters.
•BODS Monitoring -This voluntary monitoring requirement has been added as requested. A
monthly frequency has been specified.
• Flow Limit - A monthly average flow limit of 0.036 MGD has been specified in accordan
ce
with the long-term average flow from the Nafion® process area. BODS concentration limits. of
24 mg/1(monthly average) and 64 mg/l (daily maximum) have been included for this outfall as
requested.
• OCPSF Priority Pollutant Limits The
limits required under 40 CFR 414 Subpart J have been
changed from mass limits to concentration limits to ensure compliance at less than maximum
flow.
If any part
s, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicative hearing upon written request within thirty
(30) days following receipt of this letter. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless
such demand is made, this decision shall be final and binding.

Permit No. NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
In compliance with the provision of North Carolina General Statute 143-215.1;
other lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,
E.I. DuPont de Nemours &Company, Inc.
is hereby authorized to discharge wastewater from a facility located at
DuPont Automotive
NC Highway 87
Duart
Bladen County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III, and IV hereof.
This permit shall
become effective September 1, 1996
This permit and authorization to discharge shall expire at midnight on May 31, 2001
Signed this day July 25, 1996
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Please take notice this permit is not transferable. Part II, E.4. addresses the requirements to be
followed in case of change in ownership or control of this discharge.
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Environmental Management or permits required by the Division of Land Resources,
Coastal Area Management Act or any other Federal or Local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Mr. Greg Nizich at telephone
number 919/733-5083, ext. 541.
Sincerely,
C�ri�in�i Si�n�d k1y
�a+�id A. Goodrich
A. Preston Howard, Jr., P.E.
Enclosure
cc: Central Files
Mr. Roosevelt Childress, EPA
Fayetteville Regional Office, Water Quality Section
Facility Assessment Unit
Aquatic Survey &Toxicology Unit
Technical Assistance &Certification Group
Permits and Engineering Unit`

Permit No. NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
E.I. DuPont de Nemours & Co., Inc.
is hereby authorized to:
1. Continue to operate existing wastewater treatment facilities consisting of equalization,
neutralization, aerated pre -digester tank, a nutrient feed system, an aeration tank, dual clarifiers,
effluent flow measurement, a DAF unit, a rotary filter for sludge thickening, a sludge filter press
and steam heated sludge dryers (001); boiler blowdown from Dupont oil -fired boilers, boiler
blowdown and cooling tower blowdown from BCH Energy Project, once through cooling
water, treated wastewater effluent from Outfall 001, Nafion® low biodegradable process
wastewater from Outfall 006, and filter backwash discharge (002), located at DuPont
Automotive, NC Highway 87, Duart, Bladen County (See Part III of this Permit), and
2 , Discharge from said treatment works at the location specified on the attached map into Cape Fear
River which is classified Class C waters in the Cape Fear River Basin.

IF I
/ ✓•E iii i 1 /i / —J''ir \ _ or !�
4 7, 1 1 oflit
Or i Irl
NP 0
�-�\ ��� t�1 ♦ l �� / o \ X14 f
%o
!
, t t: ,
56
i
�r'I�I r % j —' .r `1 � ��A�/ /' ��� ', •1 �✓ \?, . I I i jolt\ / li
\ J%: / • r / / t 0.J �� i ,'�. r .. \/ •', ( 1 it �;
/� �.. i t �- "�. //' cam' •'� "' \ ,I
\\\�% i j-���r✓ J ;<'• pP4atto�\♦. 'r ._i� ,'—\�'�"�:_ �� ' i i 1 ;c•
00 p
�L/' )� T0�\\.moi cit` •.^�. �' ��,�'�`.l \V�i ,�%� �.�''��i/� , ,1'let�1:
to
10
oieCem \ .112 A
1/ �� ✓1+ti V �•
Itil
cc,\Tanks I % oil,
00
I� \� 9 158
Tan
V nd Waste as
QF\
o
Alk tr \\ \, t♦ V o bstat� •\\ `, , t i
low
�J \ \ ♦
ag
It
" to, +
ske
... a t l �, �—� • ��,,_ Bt 1 Lock a Dam No
1f: I \ ;,\R :. ✓♦`
re i �
�• �.�—� Demel '.\�, t / ��'� •' \ ,,: . ♦ .� ti �'_— e •p
\ 1303
�i ,\ilii li yp t�JOI
�♦ i =.. i%,"; \It
�`:
I
f �' v ;, , DISCHARGE POINT 1
too
It
o♦ —
i• t {, ��
dop 1,
° 1302 4 �_ •�> ,
15� ''
it
1305 � �5�..,,�\; \;�\ /il, �-,'It r
1 \16'•
r7title ., \ 71l `_ '.may;• It
So
°of
c.
�. �� '�'�-: - \'` �•.-. ��. �``-•� ICS �\! ,•„^'.� V'
� 1306 ° ./� _ ."_ /' "• � _^ '� - ,`/ '- '� I� ��• n` � • /
Meet° �A . �J'i IS �..���.r�_ _ •�i, \ _ - . 1' ~ - \�� r/� _ _\ — \ . ! t'.
J ( �\ ♦ ° .y'e�� i of, P
700
_ \ I � ,♦'t _ P; ~' -s-• , � �` \ till i Ga91_ '9\�`�'
No
Tory f// - °'�' I`1 'jy% \�,'.'_`, ._ �l`.�'_ 11-

M
v-,
M y C W
0 h o
x
O p— W W W W
z 464
" O c t0 V
Z bUpaQ E J
d
i
-a 0 o a
U E EE
oa)C U U C7 C7 U
N
•o � E� c
p ..
c j
0�s d c N Y cr
Ch
a) o :3
o y U O
LLI
a E0.
ton
t y U)
0
`N CC
W ° Q� C .���•• 1 Q
y )
� N
N
N O
co 0
> O M
Q CU LO O
y
O
oo "i Q c+•> o
Cie) �b
z Z�a� mr
O c� c
o
.n o
v�� z L adz o
to >
N 00
to 0 V
ix
c o
(13
1�1 y C
LO V_
O fiS C (U 0
C L
Q
0 C! W LL m ice- i� 0 U
0
O
U
N
a0
N �
� O
N
zo
b4w4
p O
� v
bn °'
�O
U
'w
w
�o
w�
3
M -d
M Q
� 0
cl
a
o.�
U4�
• DC t-+
H w
rA
o
as
Ucoo
en
r4
0
O

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL N0003573
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge from outfall serial number 001. (Continued)
Effluent Characteristics Mon. Avg Daily Max Daily Max Measurement Sample *Sample
lbs/day lbs/day Frequency+ Type Location
Acenapthene 0.15 0.41 Annually Grab E
Acrylonitrile 0.67 1.68 Annually Grab E
Benzene 0.26 0.94 Annually Grab E
Carbon Tetrachloride 0.12 0.26 Annually Grab E
Chlorobenzene 0.10 0.19 Annually Grab E
1,2,4-Trichlorobenzene 0.47 0.97 Annually Grab E
Hexachlorobenzene 1.41 µg/1 Annually Grab E
1,2-Dichloroethane 0.47 1.46 Annually Grab E
1,1,1 -Trichloroethane 0.15 0.37 Annually Grab E
Hexachloroethane 0.15 0.37 Annually Grab E
1,1-Dichloroethane 0.15 0.41 Annually Grab E
1,1,2 -Trichloroethane 0.15 0.37 Annually Grab E
Chloroethane 0.72 1.86 Annually Grab E
Chloroform 0.15 0.32 Annually Grab E
2 -Chlorophenol 0.22 0.68 Annually Grab E
1,2 -Dichlorobenzene 0.53 1.13 Annually Grab E
1,3 -Dichlorobenzene 0.22 0.31 Annually Grab E
1,4 -Dichlorobenzene 0.10 0.19 Annually Grab E
l jl Dichloroethylene 0.11 0.17 Annually Grab E
1,2-trans-Dichloroethylene 0.15 0.37 Annually Grab E
2,4-Dichlorophenol 0.27 0.78 Annually Grab E
1,2-Dichloropropane 1.06 1.60 Annually Grab E
1,3-Dichloropropylene 0.20 0.31 Annually Grab E
2,4 -Dimethylphenol 0.12 0.25 Annually Grab E
2,4-Dimtrotoluene 0.78 1.98 Annually Grab E
2,6-Dinitrotoluene 1977 4.45 Annually Grab E
Ethylbenzene 0.22 0.75 Annually Grab E
Fluoranthene 0.17 0.47 Annually Grab E
Methylene Chloride 0.28 0.62 Annually Grab E
Methyl Chloride 0.60 1.32 Annually Grab E
Hexachlorobutadiene 0.14 0.34 Annually Grab E
Naphthalene 0.15 0.41 Annually. Grab E
Nitrobenzene 0.19 0.47 Annually Grab E
2-Nitrophenol 0.28 0.48 Annually Grab E
4-Nitrophenol 0.50 0.86 Annually Grab E
2,4-Dintrophenol 0.49 0.85 Annually Grab E
4,6-Dintro-o-cresol 0.54 1.92 Annually Grab E
Phenol 0.10 0.18 Annually Grab E
Bis(2-ethylhexyl)phthalate 0.71 1.94 Annually Grab E
Di -n -butyl phthalate 0.19 0.40 Annually Grab E
Diethyl phthalate 0.56 1.41 Annually Grab E
Dimethyl phthalate 0.13 033 Annually Grab E

Effluent Characteristics Mon. Avg Daily Max Daily Max Measurement Sample *Sample
lbs/day lbs/day Frequency+ Type Location
Benzo(a)anmracene 0.15 *** Annually Grab E
Benzo(a)pyrene 0.16 *** Annually Grab E
3,4-Benzofluoranthene 0.16 *** Annually Grab E
Benzo(k)fluoranthene 0.15 *** Annually Grab E
Chrysene 0.15 *** Annually Grab E
Acenaphthylene 0.15 0.41 Annually Grab E
Anthracene 0.15 0.41 Annually Grab E
Fluorene 0.15 0.41 Annually Grab E
Phenanthrene 0.15 0.41 Annually Grab E
Pyrene 0.17 0.46 Annually Grab E
Tetrachloroethylene 0.15 0.39 Annually Grab E
Toluene 0.18 0.56 Annually Grab E
Trichloroethylene 0.15 0.37 Annually Grab E
Vinyl Chloride 0.72 1.86 Annually Grab E
Total PAH's ** *** Annually Grab E
*Sample Location: E -Effluent
** Total PAH's are comprised of Benzo(a)anthracene; Benzo(a)pyrene; 3,4-Benzofluoranthene;
Benzo(k)fluoranthene, Chrysene, Dibenz (a,h) anthracene and Indeno (1,2,3 -ed) pyrene.
*** None of these parameters shall exceed the Total PAH limit of 57.0 µg/1
+ Should any annual monitoring result in detection of any OCPSF parameters contained in 40 CFR
414 Subpart I (excluding metals), then quarterly monitoring will begin immediately for the detected
parameter(s). After four consecutive quarterly samples resulting in non -detection are achieved, the
monitoring frequency will revert to annually.

a
M
O Q w C] cn
Uy 'o. o>
�� JE
Em_wwwwDwwD op 0 �w av N a)�Ej
.•O_•
a o� o� E °� 'fl o 0 0 0 0 �•� 0° 0
w O a a a a s o cd p O
�� �t� cn F ami C 0 0 0 To o o a� o v u
••O 0
cy Cr C7 U U U C7 U U C7 O 'ti
,tea OPINION`.. so b z0
p4 4>0 p E 0 .. bACOO
U C O CdO 42
V1 Y Y ° fr
O C «-
; L p
.. V Or m d C (0 (o 0) O C C 0
Z 0 d Ism O RS O 7 N N O O O F-i ' C"r 0 ° O
0 O'p Q 0 0
° a
Z N txal fmr O CA
o o
LIP) LOA)
W x ti c,,•., 0 a v
Q '0 cn �~
a
ZbA cd O > 4r o ~ O "C7
"t7 C r �
r; U O U sk� 611111U C 'C
W CSE = > objo0 o
�-oMIC00 m
ate: 0
4mmg P5 *000
c �`� �„o .o C
�Q o 0
x 0 0
ti
0 Uj 0 v i'r �--
.�. >
tip) n O" v o
'' -� '- 0 0 � cV
Z _ rn a .a 0 b 'o
0-� 64
�� �"x -�ti r� ��
Z
CS VD
�> ,��a a
Q �� S!A w a a 0 o O
r� ° o� � o b
g
O a° O W0. 0 c� 0 3
�, O `- .� U N _ i O bA
= N Oq C3 co) 4-r � COO
v
NbAO zi� .. Z W o ,-�
;ss% q6) 1111110 ossmmm�
4 0
o C� O CU � ~ 0 O
i z �g ,0 a
z Q- c N o -d o
Immoddoo
v� U o � pry Mcn
asos,os(y ^fes �/J R+ ►. w CO is O N > Q 3c �c dE �� °
W (� ? O c cLa acommon d U 0 H
bq p z �
O.i O E C] O U) Rf Co EK 0 C
Q
0 W ti� w � ►°' m o F. U

M
M N C
O _
N
U O +O- +N- E `m W W
Z cN >1 cC
O
z cis ►_
U O •7
CD
a o
~ a) o
cc U
O U
C
O
N O N
'p C O
U .r O C C
C40W i CO
CIO
��c)
�A
U �
U x —
O
Cl
E
U O
w
¢ arra v •�
N
C C
Ltr ) Q? O
W c Ln 'N m
E > 2 E
Wi''� Jaaco 0
� d C O CV
¢ U L O O
a O
O
Z u -� K
OO >t
z
o� m
Q \
z •�
o
z `ti o
2 M
¢ �0 3
H
"o C) oLM
Z a. a
U
A•� a U N
c� cuLOi
en
d
"- O
d
0 a w LL m

A. O. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL N0003573
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge from outfall serial number 006 (Nasion® low -biodegradable
process wastewaters). (Continued)
Effluent Characteristics Daily Max Monthly Avg Measurement Sample *Sample
(ug/1) (ug/1) Frequency+ Type Location
Acrylonitrile 232 94 Annually Grab E
Benzene 134 57 Annually Grab E
Carbon Tetrachloride 380 142 Annually Grab E
Chlorobenzene 380 142 Annually Grab E
1,2,4-Trichlorobenzene 794 196 Annually Grab E
Hexachlorobenzene 256 196 Annually Grab E
1,2-Dichloroethane 574 180 Annually Grab E
1,1,1 -Trichloroethane 59 22 Annually Grab E
Hexachloroethane 794 196 Annually Grab E
1,1-Dichloroethane 59 22 Annually Grab E
1,1,2 -Trichloroethane 127 32 Annually Grab E
Chloroethane 295 110 Annually Grab E
Chloroform 325 111 Annually Grab E
1,2 -Dichlorobenzene 794 196 Annually Grab E
1,3 -Dichlorobenzene 380 142 Annually Grab E
1,4 -Dichlorobenzene 380 142 Annually Grab E
1, l-Dichloroethylene 60 22 Annually Grab E
1,2-trans-Dichloroethylene 66 25 Annually Grab E
1,2-Dichloropropane 794 196 Annually Grab E
1,3-Dichloropropylene 794 196 Annually Grab E
Ethylbenzene 380 142 Annually Grab E
Methylene Chloride 170 36 Annually Grab E
Methyl Chloride 295 110 Annually Grab E
Hexachlorobutadiene 380 142 Annually Grab E
Nitrobenzene 6402 2237 Annually Grab E
2-Nitrophenol 231 65 Annually Grab E
4-Nitrophenol 576 162 Annually Grab E
2,4-Dintrophenol 4291 1207 Annually Grab E
4,6-Dintro-o-cresol 277 78 Annually Grab E
Tetrachloroethylene 164 52 Annually Grab E
Toluene 74 28 Annually Grab E
Trichloroethylene 69 26 Annually Grab E
Vinyl Chloride 172 97 Annually Grab E
*Sample Location: E -Effluent
+ Should any annual monitoring result in detection of any OCPSF parameters contained in 40 CFR
414 Subpart J (excluding metals), then quarterly monitoring will begin immediately for the detected
parameter(s). After four consecutive quarterly samples resulting in non -detection are achieved, the
monitoring frequency will revert to annually.

Part III Permit No. NC0003573
E. This permit shall be modified, or revoked and reissued to incorporate toxicity limitations and
monitoring requirements in the event toxicity testing or other studies conducted on the effluent or
receiving stream indicate that detrimental effects may be expected in the receiving stream as a result
of this discharge.
F. The permittee shall not use any biocides except those approved in conjunction with the permit
application. The permittee shall notify the Director in writing not later than ninety (90) days prior
to instituting use of any additional biocide used in cooling systems which may be toxic to aquatic
He other than those previously reported to the Division of Environmental Management. Such
notification shall include completion of Biocide Worksheet Form 101 and a map locating the
discharge point and receiving stream.
G. CHRONIC TOXICITY PASS/FAIL PERMIT LIIVIIT (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in;
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is 3.3% (defined as treatment two in the North Carolina procedure document).
The permit holder shall perform quarterly monitoring using this procedure to establish compliance
with the permit condition. The first test will be performed after thirty days from the effective date
of this permit during the months of February, May, August and November. Effluent sampling for
this testing shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR -1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT -1 (original) is to be sent to the following address;
Attention:
Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete an
d accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any single quarterly monitori
ng indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE; Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit

suitable test results will constitute noneompliance with monitoring requirements.
H. The permittee may submit data one year after permit issuance to the Division of Environmental
Management requesting the Division to re-evaluate the monitoring frequencies for certain
parameters in this permit.
I. Waiver of Instream Monitoring
Instream monitoring (locations at outfall 002) shall be waived upon the permittee
submitting a copy of the signed Cape Fear River monitoring plan agreement to the Division along
with a request to drop instream monitoring requirements.