DEQp00020339

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue
Governor
Mr. Michael E. Johnson
Environmental Manager
E.I. DuPont de Nemours & Company
22828 NC Highway 87 West
Fayetteville, North Carolina 28306-7332
Dear Mr. Johnson:
Charles Wakild, P.E.
Director
February 6, 2012
Dee Freeman
Secretary
Subject: Issuance of NPDES Permit
NC0003573
Fayetteville Works
Bladen County
Facility Class III
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge 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 U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
The Final Permit contains the following significant changes from the Draft Permit:
• Tertiary filters were removed from the description of the wastewater treatment facilities.
• Classification of the receiving stream was changes to Class C, WS -IV.
• Cooling tower blowdown was added to the description of waste streams.
• Chronic toxicity monitoring requirement was moved to the Outfall 002.
This Final Permit maintains the following changes contained in the Draft Permit:
• One clarifier was added to the description of the treatment facility.
• The permit limits have recalculated based on the latest OCPSF production information in accordance with
. the 40 CFR 414 Subpart D.
• The limits for Cr, Cu, CN, Pb, Ni, and Zn were added to the permit in accordance. with the 40 CFR 414
Subpart D.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 One
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748 NorthCarohna
Internet: www.ncwaterquality.orgatllrall
An Equal Opportunity 1 Affirmative Action Employer

The limit for Fluoride (F) was removed from the permit based on the statistical analysis of the effluent data
and the monitoring was reduced to quarterly. The instream monitoring for F was removed from the permit.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adjudicatory 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 (6714 Mail Service Center, Raleigh,
North Carolina 27699-6714), Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements
to obtain other permits which may be required by the Division of Water Quality or permits required by the
Division of Land Resources, the 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 Sergei Chernikov at
telephone number [phone].
Sincerely,
uek—,
harles Wakild
cc: Central Files
NPDES Files
Fayetteville Regional Office / Surface Water Protection Section
EPA Region IV (e -copy)
Aquatic Toxicology Unit (e -copy)
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 One t,
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748 Nor thCarohna
Internet: www.ncwaterqualit .org Aatrmallff
An Equal Opportunity 1 Affirmative Action Employer

Permit NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions 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 & Co.
is hereby authorized to discharge wastewater and stormwater from a facility located at
DuPont - Fayetteville Works
22828 NC Highway 87
Duart Township
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.
The permit shall become effective March 1, 2012.
This permit and the authorization to discharge shall expire at midnight on October 31, 2016.
Signed this day February 6, 2012.
-Marles Wakild P.E., Director
I -Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued permit bearing this number is no longer
effective. 'therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terms, and provisions included herein.
E.I. DuPont de Nemours & Co., Inc.
is hereby authorized to:
Continue to operate existing wastewater treatment facilities consisting of:
• equalization;
• neutralization;
• aerated pre -digester tank;
• nutrient feed system;
• aeration tank;
• three clarifiers;
• effluent flow measurement;
• DAF unit;
• rotary filter for sludge thickening;
• sludge pump;
• sludge filter press; and
• steam heated sludge dryers.
2. Discharge treated process wastewater from Butacite®, Nafion®, SentryGlas®, and PVF
(polyvinyl fluoride resin), process stormwater, sanitary wastewater, and co -neutralized
regenerate from said treated facilities through internal outfall 001;
3. Discharge stormwater, non -contact cooling water, boiler blowdown and condensate,
cooling tower blowdown, and treated wastewater effluent from 001, through outfall 002
at the location specified on the attached map into the Cape Fear River, a class C, WS -IV
water in the Cape Fear River Basin.

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Permit NC0003573
' A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 001. Such discharges shall be limited and monitored by the Permittee as specified
below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Daily
Average Maximum
Measurement Sample Sample
Frequency e Location
Flow (MGD)
2.0
Continuous
Recording
Effluent
BODS, 20° C
182.6 lbs/day
484.71bs/day
3/Week
Composite
Effluent
Total Suspended Solids
303.1 lbs/day
981.51bs/day
3/Week
Composite
Effluent
Temperature
Weekly
Grab
Effluent
Oil & Grease
Monthly
Grab
Effluent
pH
Between 6.0 and 9.0 Standard Units
3/Week
Grab
Effluent
40 CFR 414 Subpart I
See Condition A. (2)
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.

Perniit NC0003573
A. (2) EFFLUENT LIMITATIONS AND MONITORING REgumEMENTS - SUBPART I
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 001:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average'
Daily
Maximum'
Measurement
Fre uenc
Sample
e
Sample
Location
Acenaphthene
0.166
0.444
See Note 2
Grab
Effluent
Acenaphthylene
0.166
0.444
See Note 2
Grab
Effluent
Acrylonitrile
0.723
1.821
See Note 2
Grab
Effluent
Anthracene
0.166
12.8 ug/L
See Note 2
Grab
Effluent
Benzene
0.278
1.024
See Note 2
Grab
Effluent
Benzo(a)anthracene
0.166
0.444
See Note 2
Grab
Effluent
3,4-Benzofluoranthene
0.173
0.459
See Note 2
Grab
Effluent
Benzo(k)fluoranthene
0.166
0.444
See Note 2
Grab
Effluent
Benzo(a)pyrene
0.173
0.459
See Note 2
Grab
Effluent
Bis(2-ethylhexyl) phthalate
0.775
2.100
See Note 2
Grab
Effluent
Carbon Tetrachloride
0.135
0.286
See Note 2
Grab
Effluent
Chlorobenzene
0.113
0.211
See Note 2
Grab
Effluent
Chloroethane
0.783
2.017
See Note 2
Grab
Effluent
Chloroform
0.158
0.346
See Note 2
Grab
Effluent
2 -Chlorophenol
0.233
0.738
See Note 2
Grab
Effluent
Chrysene
0.166
0.444
See Note 2
Grab
Effluent
Di -n -butyl phthalate
0.203
0.429
See Note 2
Grab
Effluent
1,2 -Dichlorobenzene
0.580
1.227
See Note 2
Grab
Effluent
1,3 -Dichlorobenzene
0.233
0.331
See Note 2
Grab
Effluent
1,4 -Dichlorobenzene
0.113
0.211
See Note 2
Grab
Effluent
1,1-Dichloroethane
0.166
0.444
See Note 2
Grab
Effluent
1,2-Dichloroethane
0.512
1.588
See Note 2
Grab
Effluent
1,1-Dichloroethylene
0.120
0.188
See Note 2
Grab
Effluent
1,2-trans-Dichloroethylene
0.158
0.406
See Note 2
Grab
Effluent
2,4-Dichlorophenol
0.294
0.843
See Note 2
Grab
Effluent
1,2-Dichloropropane
1.152
1.731
See Note 2
Grab
Effluent
1,3-Dichloropropylene
0.218
0.331
See Note 2
Grab
Effluent
Diethyl phthalate
0.610
1.528
See Note 2
Grab
Effluent
2,4 -Dimethylphenol
0.135
0.271
See Note 2
Grab
Effluent
Dimethyl phthalate
0.143
0.354
See Note 2
Grab
Effluent
4,6-Dinitro-o-cresol
0.587
2.085
See Note 2
Grab
Effluent
2,4-Dinitrophenol
0.534
0.926
See Note 2
Grab
Effluent
2,4-Dinitrotoluene
0.851
2.145
See Note 2
Grab
Effluent
2,6-Dinitrotoluene
1.919
12.3 ug/L
See Note 2
Grab
Effluent
Ethylbenzene
0.241
0.813
See Note 2
Grab
Effluent

Permit NC0003573
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUBPART I (CONTUNUED)
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 001:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average'
Daily
MaNimuml
Measurement
Frequency
Sample
e
Sample
Location
Fluoranthene
0.188
28.2 ug/L
See Note 2
Grab
Effluent
Fluorene
0.166
0.444
See Note 2
Grab
Effluent
Hexachlorobenzene
0.113
0.5 gg/L
Annually
Grab
Effluent
Hexachlorobutadiene
0.151
0.369
See Note 2
Grab
Effluent
Hexachloroethane
0.158
0.406
See Note 2
Grab
Effluent
Methyl Chloride
0.647
1.430
See Note 2
Grab
Effluent
Methylene Chloride
0.301
0.670
See Note 2
Grab
Effluent
Naphthalene
0.166
0.444
See Note 2
Grab
Effluent
Nitrobenzene
0.203
0.512
See Note 2
Grab
Effluent
2-Nitrophenol
0.309
0.519
See Note 2
Grab
Effluent
4-Nitrophenol
0.542
0.933
See Note 2
Grab
Effluent
Phenanthrene
0.166
0.444
See Note 2
Grab
Effluent
Phenol
0.113
0.196
See Note 2
Grab
Effluent
Pyrene
0.188
0.504
See Note 2
Grab
Effluent
Tetrachloroethylene
0.166
0.422
See Note 2
Grab
Effluent
Toluene
0.196
0.602
See Note 2
Grab
Effluent
1,2,4-Trichlorobenzene
0.512
1.054
See Note 2
Grab
Effluent
1,1,1 -Trichloroethane
0.158
0.406
See Note 2
Grab
Effluent
1,1,2 -Trichloroethane
0.158
0.406
See Note 2
Grab
Effluent
Trichloroethylene
0.158
0.406
See Note 2
Grab
Effluent
Vinyl Chloride
0.783
2.017
See Note 2
Grab
Effluent
Total Chromium
8.355
20.849
Annually
Grab
Effluent
Total Copper
10.914
25.441
Annually
Grab
Effluent
Total Cyanide
3.161
9.032
See Note 2
Grab
Effluent
Total Lead
2.409
5.194
See Note 2
Grab
Effluent
Total Nickel
12.720
29.957
Annually
Grab
Effluent
Total Zinc
7.903
19.645
Annually
Grab
Effluent
Notes:
1. All units are lbs/day unless otherwise noted.
2. Monitoring for the specified parameters has been waived based on a demonstration made by the Permittee in
accordance with 40 CFR 122.44(a)(2)(i). This waiver is good only for the term of the permit. Please note that
any exceedence of the effluent limitations found herein shall be considered a permit violation subject to
appropriate enforcement action.
3. The most sensitive analytical method available shall be employed for determining the presence of
hexachlorobenzene in the effluent.

Permit NC0003573
A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 002 (boiler blowdown, once -through cooling water, and treated wastewater from
outfall 001) Such discharges shall be limited and monitored by the Permittee as specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Daily
Average Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow (MGD)
Continuous
Recording
Effluent or
Influent
Temperature, °C
See Note 2
Daily3
Grab
Effluent,
Upstream,
Downstream
BODS, 20°C
Quarterly
Composite
Effluent
COD
Quarterly
Composite
Effluent
Fluoride (ug/L)
Quarterly
Grab
Effluent
Dissolved Oxygen
Weekly
Grab
Upstream,
Downstream
PFOA4
Monthly
Grab
Effluent
Total Phosphorus
Monthly
Composite
Effluent
Total Nitrogen
(NO2+NO3+TKN)
Monthly
Composite
Effluent
Conductivity
Weekly
Grab
Upstream,
Downstream
Chronic Toxicity
See Note 5
Quarterly
Composite
Effluent
PH
Between 6.0 and 9.0 Standard Units
3/Week
Grab
Effluent
Notes:
1. Upstream shall be at the Permittee's river pump station; downstream shall be at the boat ramp approximately
4500 feet downstream at Prospect Hall Landing.
As a participant in the Middle Cape Fear River Basin Association, the instream monitoring requirements as
stated above are waived. Should your membership in the agreement be terminated, you shall notify the
Division immediately and the instream monitoring requirements specified in your permit shall be reinstated.
2. The temperature of the effluent shall be such as not to cause an increase in the temperature of the receiving
stream of more than 2.8°C and in no case cause the ambient water temperature to exceed 32°C.
3. Daily shall be defined as every day except Saturdays, Sundays, and legal holidays. Instream temperature
sampling shall be conducted weekly.
4. PFOA (Perfluorooctanoic acid) - The Cape Fear River water intake may be sampled for PFOA on a monthly
basis and reported as an upstream parameter in DWQ Form — MR -3.
5. Chronic Toxicity (Ceriodaphnia) P/F Q 3.3% February, May, August, November; see condition A. (4) of this
permit. The compliance monitoring point for chronic toxicity shall be downstream of the confluence of outfall
001 and 002.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.

Permit NC0003573
A. (4) CHRONIC TOXICITY PERMIT LIMIT ((QUARTERLY) — OUTFALL 002
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Cerodaph-da dubia at an effluent concentration of 3.3%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent
versions. The tests will be performed 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.
If the test procedure performed as the first test of any single quarter results in a failure or Ch`J below the permit
limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months
as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998)
or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR -1) for the months in which tests were performed, using the parameter code TGP313 for the
pass/fail results and THP313 for the Chronic Value. Additionally, DWQ Form AT -3 (original) is to be sent to the
following address:
Attention: Environmental Sciences Section
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the
facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No
Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Section at
the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality 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, minimum control organism reproduction, and appropriate environmental controls, shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.

Permit NC0003573
A. (5) RE -OPENER CONDITION
This permit shall be modified, or revoked and reissued to incorporate additional 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.
A. (6) BIOCIDE CONDITION
The permittee shall not use any biocide 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 life other than those previously reported
to the Division of Water Quality. Such notification shall include completion of Biocide Worksheet Form 101 and a
map locating the discharge point and receiving stream.

Chernikov, Sergei
From: Benoy, Debra
Sent: Tuesday, January 03, 2012 11:53 AM k 1/4 To: Chernikov, Sergei �'�� ,�f
Subject: RE: DuPont Permit J U
We have no objections or comments
From: Chernikov, Sergei
Sent: Tuesday, January 03, 2012 10:30 AM
To: Benoy, Debra
Subject: DuPont Permit
From: Chernikov, Sergei
Sent: Monday, December 19, 2011 10:59 AM
To: Benoy, Debra
Subject: Dupont Permit
Debra,
I was wondering if you had a chance to review my response that was sent on November 2. 1 also included the copy of
this e-mail below. If you don't have objection against the renewal of the permit please sent me e-mail. I need to issue
the permit and cannot do it without your approval.
Thank yowl
Sergei
Debra,
This permit has the following changes:
SUMMARY OF PROPOSED CHANGES:
+ One clarifier was added to the description of the treatment facility.
• The permit limits have recalculated based on the latest OCPSF production information in accordance with the 40
CFR 414 Subpart D.
• The limits for Cr, Cu, CN, Pb, Ni, and Zn were added to the permit in accordance with the 40 CFR 414 Subpart D.
• The limit for F was removed from the permit based on the statistical analysis of the effluent data and the monitoring
was reduced to quarterly. The instream monitoring for F was removed from the permit.
Sergei
Sergei Chernikov, Ph.D.

Environmental Engineer 11
Complex Permitting Unit
Phone: [phone], fax [phone]
1617 Mail Service Center
Raleigh, NC 27699-1617
Express mail: 512 North Salisbury St.
Raleigh, NC 27606
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Benoy, Debra
Sent: Wednesday, November 02, 20119:40 AM
To: Chernikov, Sergei
Subject: RE: Dupont Permit
if there have been no changes in discharge from the existing permit, PWSS would have no comments. if there are
changes could you be specific as to what they are?
From: Chernikov, Sergei
Sent: Wednesday, November 02, 20119:25 AM
To: Benoy, Debra
Subject: Dupont Permit
Debra,
I am working on the renewal of the permit for DuPont company —Fayetteville Works. It has been brought to my
attention that the segment of the river where the facility discharges its wastewater has been reclassified to WS -IV.
Please review the attached MEMO and the permit and sent me your response. We accept hard copy, electronic version
or fax.
Please let me know if you have any questions.
Thank you!
Sergei
Sergei Chernikov, Ph.D.
Environmental Engineer II
Complex Permitting Unit
Phone: [phone], fax [phone]
1617 Mail Service Center
Raleigh, NC 27699-1617
Express mail: 512 North Salisbury St.
Raleigh, NC 27606
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

sr�r�s UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
<� rW REGION 4
o Q ATLANTA FEDERAL CENTER
Z�F \oa 61 FORSYTH STREET
PRO, ATLANTA, GEORGIA 30303-8960
SEP 1 9 2011
Mr. Jeff Poupart
Supervisor, NPDES Unit
North Carolina Department of Environment
and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: No Comment for draft National Pollutant Discharge Elimination System Permit review for
E.I. DuPont de Nemours & Company, Fayetteville Works, Permit No. NC0003573
Dear Mr. Poupart:
In accordance with the EPA/NC Memorandum of Agreement, we have completed our review of the
draft National Pollutant Discharge Elimination System (NPDES) permit referenced above which was
received on September 6, 2011, and have no comments to the proposed conditions. The EPA requests
that we be afforded an additional review opportunity only if significant changes are made to the draft
permit prior to issuance, or if significant objections to the draft permit are received. Otherwise, please
send Region 4 one copy of the final permit when issued with its signed cover letter. If you have any
questions, please call me at [phone] or send an email to [e-mail].
Sincr.
" /It
Pamala Myers
r
Municipal and Industrial NPDES Section
Pollution Control and Implementation Branch
Water Protection Division
E
Intemet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 30% Postconsumer)

AFFIDAVIT OF PUBLICATION
NORTH'CARCALINA
Cumberland County
Before the undersigned, a Notary Public of said County and state, duly
Public Notice
North Carolina
commissioned and authorized to administer oaths, affirmations, etc.,
�vommisso n/NPDES Unit
Service Center
personally appeared. CINDY L. OROZCO
1617 Mail
Raleigh, NC 27699-1617
Intent to Is
Who, being duly sworn or affirmed, according to law, doth depose and say
Notice of sue a
NPDES Wastewater Permit
that he/she is LEGAL SECRETARY
The North Carolina Environ-
PUBLISHING COMPANY, organized
mental Management Com-
of THE FAYETTEVILLE a corporation
NPDES P wast watery to 'ssUa�a
and doing business under the Laws of the State of North Carolina, and
chazge pernut to the
person ted below.
publishing a newspaper known as the FAYETTEVILLE OBSERVER, in the
Writtenopcommenta regarding
ill be
City of Fayetteville, County and State aforesaid, and that as such he/she
the accepted until p3 days rrait
aftter
makes this affidavit; that he/she is familiar with the books, files and
o-
the publish date of this no-
ticeDirector
D�;S one Qualitty
business of said Corporation and by reference to the files of said publication
f er
(DWQ) may hold a pnbi ica
the attached advertisement of CL Legal Line
hearing should there be
significant degree of public
INTENT TO ISSUE A NPDES WASTEWATER PERMI
interest Please mail wm -
ments and/or Information re-
of NC DIVISION OF WATER QUALITY
quests to DWQ at --P
he above
address. Interested perss
DWQ 512 N.
was inserted in the aforesaid newspaper in space, and on dates as follows:
may visit fhe at
Salisbury Street, Raleigh, NC
to review information on file.
Additional information on
NPDES permits and this no-
tice may be found on our
website:
htttp: //P ortal.nod enr. org/web/
w slca 04dar,
b
9/3/2011
ycall/ipg/.pd
and at the time of such publication The Fayetteville Observer was a
re-
DuPont has applied for re-
newal of NPDES permit
newspaper meeting all the requirements and qualifications prescribed by
NC0003573 for Fayetteville
Works facility in Bladen
Sec. No. 1-597 G.S. of N.C.
County. This facility Its -
s gated
The above is correctly copied from the books and files of the aforesaid
pe Fal
wastewater to -Cape Fear
waste
River, Cape Fear River Basin.
corporation and publication.
Notice of hiterrt to Issue a
NPDES Wastewater Permit
(�
913 3372321
LEGALSECRETARY
Title
Cumberland County, North Carolina
Sworn or affirmed to, and subscribed before me, this 8 day
of September, A.D., 2011.
In Testimony Whereof, I have hereunto set my hand and affixed my
official seal, the day and year aforesaid.
H. Walters, Notary Public
My commission expires 5th day of December, 2015.
MAIL TO: NC DIVISION OF WATER QUALITY
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-00001617
0003372321

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0003573
Summary:
E.I. DuPont de Nemours & Co submitted a permit renewal application on May 2, 2011 for the renewal of its
NPDES permit. The DuPont Fayetteville Works manufacturing facility includes the Butacite® plant, the Nafion®
plant, the Teflon® plant, and the APFO plant. A new process was added in 2011 to produce Polyvinyl Fluoride
(PVF) resins. The process wastewaters generated from the new facility will be treated in the existing treatment
plant.
Manufacturing Facilities:
ButiciteO Manufacturing
• DuPonfm Buticite® Interlayer plastic sheeting — This is the final product used in safety glass such as
automobile windshields.
Butacite® is manufactured in large rolls and shipped out in refrigerated trucks to glass manufacturers.
The refrigeration is a requirement as Butacite sticks to itself at temperatures above 60°F.
• Polyvinyl butyral (PVB) resin - the resin is shipped to other DuPont facilities for final processing.
Wastewaters generated at this facility are treated in the on-site wastewater treatment plant.
Nafion® Manufacturing
Five products are manufactured at the Nafion© manufacturing facility:
0 DuPonJm Nafion® membrane — a plastic film used in the chloroalkali industry and in
electrochemical fuel cells;
Fact Sheet
NPDES NC0003573
Page 1
Facility Information
Applicant/Facility Name:
E.I. DuPont de Nemours & Co — DuPont Fayetteville Works
Applicant Address:
22828 NC Hwy 87W, Fayetteville, NC 28306-7332
Facility Address:
22828 NC Hwy 87W, Fayetteville, NC 28306-7332
Permitted Flow (MGD):
2 MGD —
WWTP (Outfall 001 -external)
Type of Waste:
Industrial
Facility Classification:
III
Permit Status:
Renewal
County:
Bladen
Miscellaneous
Receiving Stream:
Cape Fear River
Regional Office:
Fayetteville
Stream Classification:
C, WS -IV
USGS Quad:
Duart
303(d) Listed?
No
Permit Writer:
Sergei Chernikov
Basin/'Subbasin:
03-06-16
Date:
08/09/2011
Drainage Area +(miz)':
4790
Lat. 34'50'18"N Long. 78'49'47"W
Summer 7Q10 (cfs),
791
Winter 7Q10 (cfs):
30Q2 (cfs)
Average Flow (efs):
5676
IWC (%):
13.3%
Summary:
E.I. DuPont de Nemours & Co submitted a permit renewal application on May 2, 2011 for the renewal of its
NPDES permit. The DuPont Fayetteville Works manufacturing facility includes the Butacite® plant, the Nafion®
plant, the Teflon® plant, and the APFO plant. A new process was added in 2011 to produce Polyvinyl Fluoride
(PVF) resins. The process wastewaters generated from the new facility will be treated in the existing treatment
plant.
Manufacturing Facilities:
ButiciteO Manufacturing
• DuPonfm Buticite® Interlayer plastic sheeting — This is the final product used in safety glass such as
automobile windshields.
Butacite® is manufactured in large rolls and shipped out in refrigerated trucks to glass manufacturers.
The refrigeration is a requirement as Butacite sticks to itself at temperatures above 60°F.
• Polyvinyl butyral (PVB) resin - the resin is shipped to other DuPont facilities for final processing.
Wastewaters generated at this facility are treated in the on-site wastewater treatment plant.
Nafion® Manufacturing
Five products are manufactured at the Nafion© manufacturing facility:
0 DuPonJm Nafion® membrane — a plastic film used in the chloroalkali industry and in
electrochemical fuel cells;
Fact Sheet
NPDES NC0003573
Page 1

• Nafion® resins — ultimately extruded into a finished film;
• Nafion® solution — generated during the production of resin;
• FLPR vinyl ether monomers — shipped to other DuPont locations to produce various fluorochemical
products such as DuPontTM Teflon@.
• HFPO monomers — shipped to other DuPont locations to produce various fluorochemical products
such as DuPontTM Teflon@.
Wastewaters generated at this facility are neutralized and treated in the on-site WWTP.
PPA Manufacturing
The processing aids produced in this units are used to produce fluoropolymers and fluorinated telomers that are
shipped to other DuPont facilities. This facility was started up in November 2002.
Wastewaters generated in this process are collected and shipped off-site for disposal.
Sentry Glass Plus@ Manufacturing
DuPontTM Sentry Glass Plus@ - this is an ionoplast interlayer laminate used for laminated safety glass in side,
rear, and overhead automobile windows. It is also used in architectural applications desiring safety glass.
This manufacturing process started in June 2005. No process wastewaters are generated from this process. Non -
contact cooling water is discharged to Outfall 002.
Proposed PVF -3 Manufacturing
This facility will produce Polivinyl fluoride resins (PVF) and is expected to start production in 2013. The
manufacturing facility will be located near the existing PVF -1 and PVF -2 manufacturing processes. PVF is used in
DuPontTM Tedlar@ fluoropolymer film manufactured at other DuPont facilities. Tedlar@ is used in the
photovoltaic industry in photovoltaic cells and the aircraft industry for interior cabin surfaces, as well as other
uses.
The PVF -1 facility began operation during September 2007, the PVF -2 facility began operation during June 2010.
Process wastewater generated from this manufacturing facility is treated in the WWTP. Non -contact cooling
water, condensate and stormwater will be discharged to Outfall 002.
Wastewater Treatment:
Process wastewaters and stormwater from process areas are collected in sumps in the respective manufacturing
areas and conveyed via gravity sewers to the wastewater treatment plant. Sanitary sewage is conveyed separately to
the WWTP.
The treatment system discharges through Outfall 001 to the main discharge channel. Non -process cooling waters
and stormwater are conveyed to ditches and discharged to the main discharge channel. The combined flows are
discharged through Outfall 002 to the Cape Fear River below Lock and Dam #3.
Effluent Guidelines:
DuPont's Fayetteville Works is regulated under the Organic Chemicals, Plastics and Synthetic Fibers Category, 40
CFR 414 Subpart D. These guidelines apply to products manufactured under SIC codes 2869 and 2821. SIC code
2869 includes NafionO solution, Vinyl Ether and HFPO monomers manufacturing. SIC code 2821 includes
Teflon@ resin, polyvinyl fluoride resin, polyvinyl butyral resin and Nafion@ resin manufacturing. Manufacturing
of Nafion membrane, ButaciteO sheeting and Sentry Glass plus are classified as SIC code 3081 which is not
regulated by the OCPSF guidelines.
Regulated process flow for Outfall 001 is approximately 0.9 MGD. This flow includes the flow from PVF
manufacturing process.
EG limits - Subpart D - Thermoplastic Resins, 414.41
Limits are calculated by multiplying the allocation from the effluent guidelines by 8.34 (conversion factor) and by
OCPSF process flow.
Fact Sheet
NPDES NC0003573
Page 2

Limits are calculated by multiplying the allocation from the effluent guidelines by 8.34 (conversion factor) and by
kj%-,'or
Luk" -OJ uuw.
Effluent limitations
Effluent Lunitations
Domestic WW
Proposed limits
concentration
ss limits
mass limits
mass'limits
Parameter
Maximum
Maximum
Monthly
Daily Monthly
Daily , Monthly
Daily Monthly
Daily
.Maximum Average
Maximum Average ,
Maximum Average
(mg/1)
Average
(lb/dap) (Ib/day)
(lb/day) (lb/day) '
(lb/day) (lb/day)
BOD
64
24 -
481.7 180.6
3 2
484.7 182.6
TSS
130
40
978.5 301.1
3 2
981.5 303.1
Process flow - 0.9025 MGD.
Compliance Summary:
During the review period (2007-2011) the facility did not receive any Notices of Violation.
Whole Effluent Toxicity - The permit requires a quarterly chronic test at 3.3 %. The facility passed all the tests
during the previous permit term (please see attached).
Reasonable Potential Analysis (RPA):
The RPA was conducted for F, please see attached.
Instream data review:
There are monitoring stations in the Cape Fear River upstream (B8301000) and downstream (B8302000) of the
discharge. Data from the monitoring stations indicates no noticeable impact from the discharge.
SUMMARY OF PROPOSED CHANGES:
I
• One clarifier was added to the description of the treatment facility.
• The permit limits have recalculated based on the latest OCPSF production information in accordance
with the 40 CFR 414 Subpart D.
• The limits for Cr, Cu, CN, Pb, Ni, and Zn were added to the permit in accordance with the 40 CFR 414
Subpart D.
• The limit for F was removed from the permit based on the statistical analysis of the effluent data and the
monitoring was reduced to quarterly. The instream monitoring for F was removed from the permit.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
August 31, 2011
October 24, 2011
If you have questions regarding any of the above information or on the attached permit, please contact Sergei
Chernikov at [phone].
REGIONAL OFFICE COMMENTS
Fact Sheet
NPDES NC0003573
Page 3

NAME: DATE:
Fact Sheet
NPDES NC0003573
Page 4

0
Ambient Monitoring System Station
NCDENR, Division of Water Quality
Basinwide Assessment
Location: CAPE FEAR RIV AT POWER LINES NR TOLARSVILLE
Station #: B8302000 Hydrologic Unit Code: 03030005
Latitude: 34.78434 Longitude: -78.79825 Stream class: C
Agency: MCFRBA NC stream index: 18-(26)
Time period: 01/04/2006 to 12/14/2010
# # Results not meeting EL Percentiles
results ND EL # % %Conf Min 10th 25th 50th 75th 90th Max
Field
D.O. (mg/L)
255
0
<4
0
0
12.7
255
0
<5
0
0
pH (SU)
255
0
<6
14
5.5
6.9
255
0
>9
0
0
Spec. conductance
255
0
N/A
53
91
(umbos/cm at 25°C)
127
145
175
232
3.4
Water Temperature (°C)
255
0
>32
0
0
Other
3.1
5.2
8
12
27.9
TSS (mg/L)
60
2
N/A
9
12.2
Turbidity (NTU)
60
0
>50
0
0
Nutrients (mg/L)
0.13
0.29
0.26
0.5
0.58
NH3 as N
60
18
N/A
0.2
0.31
NO2 + NO3 as N
60
0
N/A
1
0.02
TKN as N
60
3
N/A
0.24
0.51
Total Phosphorus
51
1
NIA
Fecal Coliform Screening(#/100mL)
# results: Geomean
# > 400:
% > 400: %Conf:
60 32.1
4
6.7
5
6
6.3
7.4
9.1
10.6
12.7
5
6
6.3
7.4
9.1
10.6
12.7
4.6
6.1
6.5
6.7
6.9
7.2
8.1
4.6
6.1
6.5
6.7
6.9
7.2
8.1
53
91
107
127
145
175
232
3.4
8.9
14.4
22.4
27.3
28.9
31.1
1
3.1
5.2
8
12
27.9
43
2.7
4.9
6.8
9
12.2
22.5
34.3
0.02
0.02
0.02
0.05
0.09
0.13
0.29
0.26
0.5
0.58
0.74
0.92
1.19
1.83
0.2
0.31
0.41
0.59
0.69
0.85
1
0.02
0.08
0.1
0.14
0.18
0.24
0.51
Key:
# result: number of observations
# ND: number of observations reported to be below detection level (non -detect)
EL: Evaluation Level; applicable numeric or narrative water quality standard or action level
Results not meeting EL: number and percentages of observations not meeting evaluation level
%Conf : States the percent statistical confidence that the actual percentage of exceedances is at least 10% (20% for Fecal Coliform)
Stations with less than 10 results for a given parameter were not evaluated for statistical confidence

Kev:
# result: number of observations
# ND: number of observations reported to be below detection level (non -detect)
EL: Evaluation Level; applicable numeric or narrative water quality standard or action level
Results not meeting EL: number and percentages of observations not meeting evaluation level
%Conf : States the percent statistical confidence that the actual percentage of exceedances is at least 10% (20% for Fecal Coliform)
Stations with less than 10 results for a given parameter were not evaluated for statistical confidence
Ambient Monitoring System Station
NCDENR, Division
of Water Quality
Basinwide Assessment
Location: CAPE FEAR RIV AT DUPONT
WATER INTAKE UPS LOCK AND DAM 3
Station #: B8290000
hydrologic Unit Code:
03030005
Latitude: 34.84945
Longitude:
-78.82629
Stream class:
C
Agency: MCFRBA
NC stream index:
18-(26)
Time period: 01/09/2006
to 12/15/2010
#
#
Results not meeting EL
Percentiles
results ND
EL
# %
%Conf Min
10th
25th
50th
75th
90th
Max
Field
D.O. (mg/L)
253
0
<4
0 0
4.3
5.5
6.2
7.2
8.7
10.5
12.5
253
0
<5
7 2.8
4.3
5.5
6.2
7.2
8.7
10.5
12.5
pH (SU)
253
0
<6
10 4
5.5
6.1
6.4
6.8
7.2
7.4
8.7
253
0
>9
0 0
5.5
6.1
6.4
6.8
7.2
7.4
8.7
Spec. conductance
253
0
N/A
51
98
108
124
144
163
212
(umhos/cm at 25°C)
Water Temperature (°C)
253
0
>32
0 0
3.3
8
13.2
22.4
27.6
29.1
31.1
Other
Chlorophyll a (ug/L)
47
3
>40
3 6.4
1
1
3
6
18
34
44
TSS (mg/L)
60
1
N/A
1
4
6
10
13.8
22.9
466
Turbidity (NTU)
60
0
>50
1 1.7
3.1
4.4
6.9
10.4
13.3
24
247
Nutrients (mg/L)
NH3 as N
60
31
N/A
0.02
0.02
0.02
0.02
0.04
0.06
0.2
NO2 + NO3 as N
60
1
N/A
0.02
0.46
0.56
0.7
0.85
1.19
1.55
TKN as N
60
6
NIA
0.2
0.2
0.38
0.52
0.71
0.97
1.5
Total Phosphorus
51
0
N/A
0.04
0.07
0.08
0.12
0.14
0.18
0.38
Metals (ug/L)
Aluminum, total (Al)
9
0
N/A
151
151
190
284
366
1040
1040
Arsenic, total (As)
9
9
>10
0 0
10
10
10
10
10
10
10
Cadmium, total (Cd)
9
9
>2
0 0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Chromium, total (Cr)
9
9
>50
0 0
5
5
5
5
5
5
5
Copper, total (Cu)
9
8
>7
0 0
2
2
2
2
2
4
4
' Iron, total (Fe)
9
0
>1000
1 11.1
543
543
584
659
755
1120
1120
Lead, total (Pb)
9
0
>25
0 0
1
1
1
1
1
1
1
Mercury, total (lig)
9
0
>0.012
0 0
0.002
0.002
0.002
0.003
0.004
0.005
0.005
Nickel, total (Ni)
9
0
>88
0 0
1
1
1
1
1
2
2
Zinc, total (Zn)
9
7
>50
0 0
10
10
10
10
11
21
21
Fecal Coliform Screening(#/100mL)
# results: Geomean
# > 400:
%
> 400: %Conf:
59 52.5
3
5.1
Kev:
# result: number of observations
# ND: number of observations reported to be below detection level (non -detect)
EL: Evaluation Level; applicable numeric or narrative water quality standard or action level
Results not meeting EL: number and percentages of observations not meeting evaluation level
%Conf : States the percent statistical confidence that the actual percentage of exceedances is at least 10% (20% for Fecal Coliform)
Stations with less than 10 results for a given parameter were not evaluated for statistical confidence

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REASONABLE
3573-RPA-2011.xlsm, data
-4- 8/10/2011
Date Data
BDL=1/2DL
Results
1
9,833.0
9,833.0
Std Dev.
10024.8860
2
i
8904.7
8,904.7
Mean
14377.6389
3
5,251.7
5,251.7
C.V.
0.6973
4
9,196.9
9,196.9
n
77
5
9,600.9
9,600.9
6
4,831.7
4,831.7
Mult Factor =
1.61
7
5,385.9
5,385.1
Max. Value
536994 ug/L
8
8,922.4
8,922.4
Max. Fred Cw
86,456.0 ug/L
9
6,916.6
6,916.6
10
24,332:8
24,332.8
11
25,586.1
25,586.1
12
-
23,466.2
23,466.2
13
11,119.8
11,119.8
14
38,821.7
38,821.7
15
6,079.1
6,079.1
16
22,328,2
22,328.2
17
27;038.3
27,038.3
18
36,523.7
36,523.7
19
6,259.6
6,259.6
20
53,699:4
53,699.4
21
20,458:2
20,458.2
22
4,788.4
4,788.4
23
35,918.1
35,918.1
24
15,194:9
15,194.9
25
11,806.1
11,806.1
26
10,978:5
10,978.5
27
21,879.5
21,879.5
28
18,132.9
18,132.9
29'
12,386:4
12,386.4
30
3,079.9
3,079.9
31
18,71`9.6
18,719.6
32
23,355.4
23,355.4
33
23,705.7
23,705.7
34
13;481.3
13,481.3
35 <
44,699.7
44,699.7
36
8,175.6
8,175.6
37
2;323.0
2,323.0
38
3,243.1
3,243.1
39
19,262.5
19,262.5
40
21;745.9
21,745.9
41
22,250.4
22,250.4
42
22,765.8
22,765.8
43
1,305.0
1,305.0
44
8,129.4
8,129.4
45.
11,036.1
11,036.1
46
11,898.8
11,898.8
47
7,744.5
7,744.5
48
12, 744.5
12, 744.5
49
11,492.8
11,492.8
50
14,853.4
14,853.4
51
5,477.1
5,477.1
52
13,552.8
13,552.8
53
12,033.0
12,033.0
54
14,312.7
14,312.7
55
12,834.6
12,834.6
56
i
12,575.8
12,575.8
57
10,039.9
10,039.9
58
E
4,454.7
4,454.7
59
3,487.1
3,487.1
60
18,221.3
18,221.3
61
s
6,527.6
6,527.6
62
<Y
6,246.9
6,246.9
63
6,858.5
6,858.5
64
7,630.6
7,630.6
65
16,809.5
16,809.5
66
:`:
9,915.1
9,915.1
67
14,963.5
14,963.5
68
6,992.3
6,992.3
69
5,565.9
5,565.9
70
20,664.0
20,664.0
3573-RPA-2011.xlsm, data
-4- 8/10/2011

71
6,281.4
6,281.4
72
16;818.9
16,818.9
73
28,589.1
28,589.1
74
5,221.0
5,221.0
75
10,889.5
10,889.5
76
17,870.7
17,870.7
77
10,591.2
10,591.2
78
79
80
81
82
83
84
85
86
87
88
89
go -
91
92
93
94
95
96
97
98
99
100
101
102
103
10t
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124 -
125
126
127
128
129
130
131
132
133
134
135
a
136>"
137
138
139
140
141
€
142
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Al2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENT'S - FINAL NC0005274
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge OCPSF related process wastewater from outfall serial number 001. Such discharges shall be limited and monitored
by the Permittee as specified below:
D'aiIY maximumJ'Monthty,AveragC,
�fftw�Ptrt i'.11Ufra['.teLlStiC li�S�dav ll�s/div
Acenaphthene
0.444
0.166
Acenaphthylene
0.444
0.166
Acrylonitrile
1.821
0.723
Anthracene
0.166
Benzene
1.024
0.278
Benzo(a)anthracene
0.444
0.166
314-Benzofluoranthene
0.459
0.173
Benzo(k)fluoranthene
0.444
0.166
Benzo(a)pyrene
-
0.459
-
0.173
- -
Bis(2-ethylhexyl) phthalate
2.100
0.775
Carbon Tetrachloride
0.286
._ .. -
0.135
_ - - ._ . .
_ ..._ - _ ..
Chlorobenzene
_
0.211
0 113
Chloroethane
2017.
0.783
Chloroform
0.346
0.158
2 -Chlorophenol
0.738
0.233 t
Chrysene
0.444
0.166
Di#n-butyl phthalate i
0.429
0.203'
1,2 -Dichlorobenzene
1.227
0.580
1,3 -Dichlorobenzene
0.331
0.233
1,4 -Dichlorobenzene
0.211
0.113
1,1-Dichloroethane
0.444
0.166 '
1,2-Dichloroethane
1.588
0.512
1,1 Dichloroeth leve
0.188
0.120
1,2-trans-Dichloroethylene
0.406
0.158
2,4-Dichlorophenol
0.843
0.294
1,2-Dichloropropane
1.731
1.152
1,3-Dichloropropylene
0.331
0.218
Diethyl phthalate
1.528
0.610
2,4 Dimethylphenol
0.271
0.135
Dimethyl phthalate
0.354
0.143
4,6 Dinitro-o-cresol
2.085
2,4-Dinitrophenol
0.926
0.534
2,4-Dinitrotoluene
2.145
0_.851
2,6-Dinitrotoluene
1.919
Ethylbenzene
0.813
0.241
Fluoranthene
0.188
Fluorene
0.444
0.166
Hexachlorobenzene
0.113
Hexachlorobutadiene
0.369
0.151
Hexachloroethane
0.406
0.158
Methyl Chloride
1.430
0.647
Methylene Chloride
0.670
0.301
Nsnhthalene
0.444
0.166

A(2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
Daly iYla�nnum 11�toathly :4�erage
Nom.
NC00052744
Nitrobenzene
0.512
0.203
2-Nitrophenol
0.519
0.309
4-Nitrophenol
0.933
0.542
Phenanthrene
0.444
0.166
Phenol
0.196
0.113
Pyrene
0.504
0.188
Tetrachloroethylene
0.422
0.166
Toluene
0.602
0.196
Total Chromium
20.849
8.355
Total Copper
_
25.441
_-
10 914
_
Total Cyanide
9.032
3.161
Total Lead
5.194
2.409
Total Nickel
29.957
12.720
Total Zinc
19.645
7.903
1,2,4 -Tri chlorobenzene
1.054
0.512
--- -- -..
- _ _ - _
1,1,1 -Trichloroethane
---- - - -
0.406
-
0.158
1,1,2 -Trichloroethane
0.406
0.158
Trichloroethylene
0.406
0.158
Vinyl Chloride i
2.017
0.783
Total Copper
6.142
2.635
Total Cyanide
2.181
0.763
Total Lead
144.400
0.582
Total Nicke
7.233
3.071
Total c
4.743
1:908
1249.963
500.888
1525.225
654.313
541.500
189.525
311.363
144.400
1795.975
762.613
1177.763
473.813

DIVISION OF WATER QUALITY
June 2, 2011
MEMORANDUM
TO: Dina Sprinkle
Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
FROM: Dale Lopez, Environmental Specialist
Fayetteville Regional Office
THRU: Belinda S. Henson, Water Quality Supervisor
Fayetteville Regional Office
SUBJECT: NPDES Staff Report and Recommendations
NPDES Permit No. NC0003573
DuPont WWTP
Bladen County
Please find attached the staff report and recommendations of the Fayetteville Regional Office
concerning the renewal of subject NPDES Permit.
If you have any questions or require any further information, please advise.
Attachment
f ,fid
8�y P" 6 : dv4 A p
F�L

SOC PRIORITY PROJECT: YES_ NO X
If Yes, SOC No.
To: Permits and Engineering Unit
Surface Water Protection Section
Attention: Dina Sprinkle
Date: June 2, 2011
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY: Bladen
Permit No. NC 0003573
PART I - GENERAL INFORMATION
1. Facility and Address:
DuPont Fayetteville Works
22828 NC Hwy 87 W
Fayetteville, NC 28306
2. Date of Investigation: February 15, 2011
3. Report Prepared by: Dale Lopez, Environmental Specialist If -
4.
Persons Contacted and Telephone Number: Jamie Lewis, ORC
910-678-1219
Michael Johnson, Environmental Manager
Fayetteville Works
910-678-1155
5. Directions to Site: This facility is located at the Bladen -Cumberland County line, between
Highway 87 and the Cape Fear River.
6. Discharge Point(s), List for all discharge points:
Outfall 001 Latitude: 340 50' 22.94" N Longitude: 78° 50" 11.66" W
Outfall 002 Latitude: 34° 50' 19.64" N Longitude: 78° 50" 11.52" W
Future Outfall 002 Latitude: 34° 50' 17.72" N Longitude: 780 49" 47.40" W
Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on map.
U.S.G.S. Quad No. H 23 -SE U.S.G.S. Quad Name: Duart, NC
7. Site: Land available for expansion and upgrading:es, DuPont owns approximately 2,600
cres at this site.
8. Topography and relationship to flood plain: Relatively flat.
3i
Du
t JUN
i
7 20i
P
D'Ott-4-1
a
_
2. Date of Investigation: February 15, 2011
3. Report Prepared by: Dale Lopez, Environmental Specialist If -
4.
Persons Contacted and Telephone Number: Jamie Lewis, ORC
910-678-1219
Michael Johnson, Environmental Manager
Fayetteville Works
910-678-1155
5. Directions to Site: This facility is located at the Bladen -Cumberland County line, between
Highway 87 and the Cape Fear River.
6. Discharge Point(s), List for all discharge points:
Outfall 001 Latitude: 340 50' 22.94" N Longitude: 78° 50" 11.66" W
Outfall 002 Latitude: 34° 50' 19.64" N Longitude: 78° 50" 11.52" W
Future Outfall 002 Latitude: 34° 50' 17.72" N Longitude: 780 49" 47.40" W
Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on map.
U.S.G.S. Quad No. H 23 -SE U.S.G.S. Quad Name: Duart, NC
7. Site: Land available for expansion and upgrading:es, DuPont owns approximately 2,600
cres at this site.
8. Topography and relationship to flood plain: Relatively flat.

a 9. Location of nearest dwelling: None within 1,000 ft.
10. Receiving stream or affected surface waters: Cape Fear River
PART I - GENERAL INFORMATION -(continued)
a. Classification: Class C
b. River Basin and Subbasin No.: Cape Fear River Basin 03 - 06 - 17
C. Describe receiving stream features and pertinent downstream uses:
Treated wastewater from Outfall 001 flowed into a board lined ditch, which contained the
boiler blow -down from DuPont, the once -through cooling water, and the filter backwash
that was discharged to the Nafion® ditch. Approximately 50 to 100 feet downstream of
where Outfall 001 flow commingled with the flow that was in the board lined ditch, the
flow passed under a board deck that supported the Outfall 002 compositor. For
compliance monitoring of samples for chronic toxicity, and according to the NPDES
permit, the samples were taken downstream of the confluence of outfall 001 and the flow
that was in the board lined ditch. This sample point was Outfall 002. The Cape Fear
River was located approximately 2,500 feet downstream. (The discharge point has
historically been indicated as the main stem of the Cape Fear River.) An A to C (ATC #
003573A02) was being processed for the relocation of Outfall 002 to the Cape Fear River
at a location upstream of Lock and Dam No. 3
PART H - DESCRIPTION OF WASTES AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted: 2.0 MGD
b. What is the current permitted capacity of the Wastewater Treatment facility? 2.0 MGD
C. Actual treatment capacity of the current facility (current design capacity). 2.0 MGD
d. Date(s) and construction activities allowed by previous Authorization to Construct issued
in the previous two (2) years.
1.) On July 15, 2008, plans were approved by Steve Coffey for the building Clarifier #3.
2.) ATC # 003573A02 was for the relocation of Outfall 002
e. Please provide a description of existing or substantially constructed wastewater treatment
facilities:
Process wastewater and storm water from the various manufacturing areas were collected
in the respective area sumps and ultimately conveyed via a gravity flow underground
process sewer pipe to the site's central wastewater treatment plant (WWTP). Sanitary
sewage was conveyed via a separate underground sewer system to the WWTP. The
permitted flow rate of the WWTP was 2.0 MGD, with an actual average flow rate of less
than 1 MGD. This process wastewater was commingled in the WWTP Influent Sump
where it was pumped to an 850,000 -gallon Equalization Basin. The Equalization Basin
was mixed with two floating mixers. Three floating surface aerators in the basin cool and
aerated the incoming wastewater. A 175,000 -gallon Emergency Retention Tank was
available for temporary storage of the wastewater which may need additional treatment or
acclimation in the WWTP activated sludge process at a controlled rate that allowed for
proper biological treatment. Wastewater from the Equalization Basin was normally
pumped to a 250,000 -gallon Predigester Tank in which initial biological activity with the
WWTP activated sludge begins. The Predigester Tank was aerated. The partially treated
wastewater from the Predigester Tank was pumped to a 1,700,000 -gallon Aeration Tank.
The Aeration Tank was the site of the majority of the biological activity. The Aeration
Tank was aerated primarily by a diffused air system located in the bottom of the tank.

Pa
PART II - DESCRIPTION OF WASTES AND TREATMENT WORKS -(continued)
The biologically treated wastewater was then sent to two in -ground clarifiers (119,000
gallons and 168,000 gallons respectively) in parallel. The clarified treated effluent was
discharged to and through Outfall 001.
The wasted sludge was sent to a Dissolved Air Floatation (DAF) unit, then to a 47,000
gallon Sludge Storage Tank, and finally to a Rotary Filter for thickening. The thickened
sludge was dewatered in a Sludge Press and dried in a steam -heated dryer for additional
moisture removal. The dewatered and/or dried sludge was transported off-site to a
commercial Subtitle D landfill.
Non -contact process cooling water and non -process storm water were conveyed via
surface ditches to the site's wood lined ditch. In addition, Outfall 001 effluent was
discharged directly to the wood lined ditch. The combined, total flow of water from the
site was discharged at Outfall 002. The Outfall 002 maximum 30 -day average flow was
18.1 MGD during the period from 2009-2010. Flow variability at Outfall 002 was from
7.5 to 18.1 MGD.
f. Please provide a description of proposed wastewater treatment facilities:
1) the relocation of the Plant Outfall 002 (ATC # 003573A02),
2) the addition of Clarifier #3.
g. Possible toxic impacts to surface waters: N/A
h. Pretreatment Program (POTWs only):
In development Approved _
Should be required Not needed X
Residuals handling and utilizing/disposal scheme:
a. If residuals are being land applied, please specify DWQ Permit No.
Permit Number
Residual Contractor:
Telephone :
b. Residuals stabilization: PSRP PFRP Other
C. Landfill: The dewatered and/or dried sludge was transported off-site to a
commercial Subtitle D landfill. This sludge was currently being disposed
of at the Waste Industries' Sampson County Landfill near Roseboro, NC.
d. Other disposal/utilization scheme (specify):
Treatment plant classification (attach completed rating sheet): Grade III
4. SIC Code(s):
Primary Secondary,
Main Treatment Unit Code:

' PART III- OTHER PERTINENT INFORMATION
Is this facility being constructed with Construction Grant Funds or are any public monies involved
(municipals only)?
2. Special monitoring or limitations (including toxicity) requests:
Monitoring and limits should be in keeping with basin wide strategy.
Important SOC, JOC, or Compliance Schedule Dates (please attach): N/A
Date
Submission of Plans and Specifications.................................................... N/A
BeginConstruction.................................................................................... N/A
Complete Construction.............................................................................. N/A
4. Alternative Analysis Evaluation: Has the facility evaluated all of the nondischarge options
available? Please provide regional perspective for each option evaluated.
Spray Irrigation: Not practical.
Connection to Regional Sewer System: None Available.
Subsurface: Not practical.
Other disposal options: None known.
Other Special Items: There were 7 items of interest that the Fayetteville Regional Office would
like to be reviewed and modified, if appropriate.
a. "C8" compound (perfluorooctanoic acid, APFO) is currently manufactured at the
Fayetteville DuPont Works in a separate PPA manufacturing building (for fluoropolymer
processing aids). All wastewater generated from this manufacturing facility is collected
and shipped off-site for disposal. No process wastewater from this manufacturing facility
is discharged to the site's biological WWTP or to the Cape Fear River. Due to C8 being
detected in some of the monitoring wells on DuPont's site and the general public's
concern over the health effects of C8 (see attached letter from North Carolina C8 Working
Group, dated May 5, 2006), the Fayetteville Regional Office of the Division of Water
Quality recommends the continuation of the monitoring requirement for C8 on the effluent
for data collection and information purposes. The APFO results were 0.22 µg/L in May
2009 and 0. 19 µg/L in November 2010.
b. All discharges from this DuPont site ultimately flow into the wood lined ditch, which
collectively discharges into an effluent channel that flows to the Cape Fear River. Over
the years the flow of the effluent through the channel has significantly eroded the banks
and has carried and deposited the sediment in the Cape Fear River forming a Delta -like
structure. DuPont acknowledged that their effluent channel has and continues to cause
sediment to be deposited into the Cape Fear River. DuPont's Plan -Of -Action to address
this issue is for the relocation of Plant Outfall 002 (ATC # 003573A02).
c. According to the NPDES Permit Renewal Application letter dated April 29, 2011: "This
site is being considered for a project to construct and operate a third manufacturing facility
that will produce polyvinyl fluoride ("PVF") polymer resins. Two water balances are
included in the application: one without the third PVF facility and one with the third PVF
facility."
d. Please see the enclosed letter (dated December 5, 2007) from Michael Johnson to Gil
Vinzani concerning fluoromalonate concentration as high as 0.97 mg/L, because it may be
of concern in Part III, Section C, b of the NPDES permit.

e. Please review the Whole Effluent Toxicity sampling location that requires that the
"compliance monitoring point for chronic toxicity shall be downstream of the confluence
of outfall 001 and 002". This does not appear to agree with the Outfall 002 limits page
which says that "the Permittee is authorized to discharge from Outfall 002 (boiler
blowdown, once -through cooling water, and treated wastewater from outfall 001)".
By this description, Outfall 002 is located below the confluence of outfall 001 and the
flow from the wood lined ditch.
f. It appears that the 3.3% IWC that is used for the Whole Effluent Toxicity Pass/Fail
dilution was derived by using the sum of the total volumes that are in Outfall 002 "(boiler
blowdown, once -through cooling water, and treated wastewater from outfall 001)" in
the calculation, along with the 7Q10 for Cape Fear. Please review the sample point that
requires Whole Effluent Toxicity testing, because it appears to be more applicable to
Outfall 002, instead of Outfall 001 [as is presently in the permit, in the Outfall 001 limits
page and in Part I, A.(4) ].
g. Please change the description of the wastewater treatment facilities to three clarifiers (from
the presently stated "dual clarifiers") because a third clarifier was recently built and put
on-line.
h. Please include wording in the new permit concerning the requirement for a flow meter
located at the Outfall 002, because ATC#003573A02 for the relocation of Outfall 002 did
not mention a flow meter. During the Compliance Evaluation Inspection on February 17,
2011, Mike Johnson verbally told Dale Lopez that the relocated Outfall 002 would have a
flow meter. Presently, the influent flow from the Cape Fear River water intake is used in
the flow measurement calculation for Outfall 002. The Cape Fear River influent flow
measurement device is located on a 42 -inch pipe, and the influent flow is measured by a
Rosemont 1151 DP (Differential Pressure) flowmeter (venture type). The possible
sources of flow measurement error when using the influent flow values for the estimated
effluent flow from this facility to the Cape Fear are as follows: 1) the effect of evaporation
loss within the entire DuPont facility, 2) the effect of infiltration, 3) the use of purchased
potable water that flows thru the WWTP, and 4) the influence of the storm water volume
from a rain event.
PART IV - EVALUATION AND RECOMMENDATIONS
The Fayetteville Regional Office recommends that the DuPont WWTP be reissued NPDES Permit No.
NC0021636. The subject application for permit renewal should be processed in keeping with basin wide
strategy.
Signature of Report eparer
Water Quality Regio al Sup or
Date &/.3/

4M. DuPont Flucroproducts
22828 NC Highway 87 W
Fayetteville, NC 28306-7332
December 5, 2007
Mr. Gil Vinzam
NCDENR — Division of Water Quality
NPDES Unit
1617 Mail Service Center ,
Raleigh, North Carolina 27699-1617
n §
SUBJECT: Changes of Discharge of Toxic Substances
NPDES Permit No. NC0003573
Dear Mr. Vinzani:
This letter is the written notification, as required by Part M(C)(b) of the subject NPDES
permit, of the discharge of a pollutant from the DuPont Company — Fayetteville Works, which is
not limited in the permit.
DuPont has determined that fluoromalonate is being discharged from the site's wastewater
treatment plant at a concentration exceeding the notification level of 0.50 mg/L specified in
Part III(C)(b)(1) the NPDES permit. Recent analysis of the treatment plant's clarifier effluent
showed the fluoromalonate concentration as high as 0.97 mg/L.
The compound being discharged from the treatment plant would likely be monopotassium
fluoromalonate (CAS No. 3107-37-9) or dipotassium fluoromalonate (CAS No. 3107-37-7).
Depending on the pH, the compound in the Cape Fear River would be either fluoromalonic acid
(CAS No. 473-87-0), monopotassium fluoromalonate or dipotassium fluoromalonate.
Should you require additional information, or if you have any questions, please contact me at
[phone].
Environmental Manager
cc: Belinda Henson, NCDENR DWQ, FRO

Henson, Belinda
From:
Michael E Johnson [[e-mail]]
Sent:
Thursday, May 05, 2011 2:02 PM
To:
Henson, Belinda; Brantley, Mark
Cc:
Jamie R Lewis
Subject:
Start Up of DuPont Third Clarifier
Belinda and Mark:
Per your instructions, this is the notification that the DuPont Company - Fayetteville Works
is planning to start-up the wastewater treatment plant's third clarifier on either Monday
(05-09-2011) or Tuesday (05-10-2011).
If something should happen that will delay the start-up date, I will let you know.
If you need a formal letter from me to satisfy this notification requirement, please let me
know.
Mike
Michael E. 7ohnson
Environmental Manager
DuPont Company
Fayetteville Works
[phone]
This communication is for use by the intended recipient and contains information that may be
Privileged, confidential or copyrighted under applicable law. If you are not the intended
recipient, you are hereby formally notified that any use, copying or distribution of this e-
mail, in whole or in part, is strictly prohibited. Please notify the sender by return e-mail
and delete this e-mail from your system. Unless explicitly and conspicuously designated as
"E -Contract Intended", this e-mail does not constitute a contract offer, a contract
amendment, or an acceptance of a contract offer. This e-mail does not constitute a consent to
the use of sender's contact information for direct marketing purposes or for transfers of
data to third parties.
Francais Deutsch Italiano Espanol Portugues Japanese Chinese Korean
http //www DuPont.corn/corp/email disclairner.html
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Mrs. Dina Sprinkle
NCDENR Division of Water Quality
Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
SUBJECT: NPDES Permit Renewal Apllication
NPDES Permit No. NC0003573
Dear Mrs. Sprinkle:
DuPont Fluoroproducts
Fayetteville Works Plant
22828 NC Highway 87 West
Fayetteville, NC 28306-7332
April 29, 2011
Pursuant to requirements of the referenced NPDES permit, the DuPont Company — Fayetteville
Works is submitting the NPDES Form 1 and Form 2C (original and two copies) for permit
renewal by the Division of Water Quality.
Included in the permit application is a Supplemental Information document which describes the
Current Operations and Proposed Changes. This site is being considered for a project to
construct and operate a third manufacturing facility that will produce polyvinyl fluoride ("PVF")
polymer resins. Two water balances are included in the application: one without the third PVF
facility and one with the third PVF facility.
The application is being submitted without the testing results for Bis(chloromethyl) ether
(CAS No. 542-88-1) as these results were not available at the time of this submittal. These
absent results are indicated by asterisks (***) on Page V-4 of Form 2C. This data will be
submitted as an addendum when the analytical report is received and inputted into a Form 2C.
Should you have any questions or need additional information, please feel free to call me at
[phone].
MAY 0 'Bali
POIN BRANCH
Enclosures
E.I. du Pont de Nemours and Company
Environmental Manager

UNITED STATES
DEPARTMENT OF THE INTERIOR
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Form 2C. Part III B:
WATER BALANCE WITH PVF -3 PROCESS (Revised 04/29/2077)
DuPont Company - Fayetteville Works
Flows Unit: Gallons per Day
Basis: All Production Manufacturing, using Maximum 30 day average of measured flows
NPDES PERMIT APPLICATION

R
17:
Form 2C. Part III B:
WATER BALANCE WITHOUT PVF -3 PROCESS (Revised 04/29/2011)
DuPont Company - Fayetteville Works
Flows Unit: Gallons per Day
Basis: All Production Manufacturing, using Maximum 30 day average of measured flows
NPDES PERMIT APPLICATION
r) jj�D t�-

` DuPont Company — Fayetteville Works
NPDES Permit No. NC0003573
Supplemental Information
Supplemental Information — Permit Renewal Application — April 29, 2011
Current Site Water Management
Process wastewater and stormwater from the various manufacturing areas are collected in the
respective area sumps and ultimately conveyed via a gravity flow underground process sewer
pipe to the site's central wastewater treatment plant (WWTP). Sanitary sewage is conveyed via a
separate underground sewer system to the WWTP. The permitted flowrate of the WWTP is
2.0 MGD, with an actual average flowrate of approximately one MGD.
This process wastewater is commingled in the WWTP Influent Sump where it is pumped to an
850,000 -gallon Equalization Basin. The Equalization Basin is mixed with two floating
submerged mixers. Three floating surface aerators in the basin cool and aerate the incoming
wastewater.
A 175,000 -gallon Emergency Retention Tank is available for temporary storage of wastewater
which may need additional treatment or acclimation in the WWTP activated sludge process at a
controlled rate that allows for proper biological treatment.
Wastewater from the Equalization Basin is normally pumped to a 250,000 -gallon Predigester
Tank in which initial biological activity with the WWTP activated sludge begins. The
Predigester Tank is aerated. The partially treated wastewater from the Predigester Tank is
pumped to a 1,700,000 -gallon Aeration Tank.
The Aeration Tank is the site of the majority of the biological activity. The Aeration Tank is
aerated primarily by a diffused air system located in the bottom of the tank. The tank can have
supplemental aeration via a floating Biomixer® that injects air through submerged rotors.
The biologically treated wastewater is then sent to one of two in -ground clarifiers (119,000
gallons and 168,000 gallons respectively) or an above -ground 679,000 -gallon clarifier; with all
clarifiers being operated in parallel. The clarified treated effluent is discharged to and through
Outfall 001.
The wasted sludge is sent to a Dissolved Air Floatation (DAF) unit, then to a 47,000 gallon
Sludge Storage Tank, and finally to a Rotary Filter for thickening. The thickened sludge is
dewatered in a Sludge Press, and can be dried in a steam -heated dryer for additional moisture
removal. The dewatered sludge or dewatered/dried sludge is transported off-site to a commercial
Subtitle D landfill.
Non -contact process cooling water and non -process stormwater are conveyed via surface ditches.
In addition, excess riverwater flow and Outfall 001 effluent are discharged directly to a surface
ditch. The combined, total flow of water from the site is discharged and monitored at Outfall
002. The DMR reported Outfall 002 maximum 30 -day average flow was 20.75 MGD during the
period from 2008 to 2010. Flow variability at Outfall 002 was from 3 to 26 MGD, however, this
monitored flow was the influent of river water pumped into the site, and did not include the
discharge of stormwater or treated sanitary sewage.

DuPont Company — Fayetteville Works
NPDES Permit No. NC0003573
Supplemental Information
Supplemental Information — Permit Renewal Application — April 29, 2011
Proposed Changes in Operations
PVF -3 Manufacturing Facility: The DuPont Company — Fayetteville Works is being
considered as the location for a third DuPontTM Polyvinyl Fluoride ("PVF") manufacturing
process ("PVF -3"). The manufacturing facility is in the process of being designed, and will
produce PVF polymer resins. PVF resin to be manufactured at the Fayetteville plant is used in
DuPontTM Tedlar® fluoropolymer film business. Tedlar® film is manufactured at other DuPont
site location (not the Fayetteville plant). Tedlar® is used in the photovoltaic industry in
photovoltaic cells and the aircraft industry for interior cabin surfaces, as well as many other uses.
Assuming this new facility is sited at the DuPont Company — Fayetteville Works, construction
would be completed in August 2013 and the unit would begin production in September 2013.
The manufacturing facility will be located near the existing PVF -1 and PVF -2 manufacturing
processes. This process will produce polyvinyl fluoride ("PVF") resin (CAS No. 24981-14-4).
As with most fluorochemical processes, the main wastewater stream from the PVF -3
manufacturing process would have trace or no biological oxygen demand (BODS) value. The
major pollutant associated with this process wastewater would be solid resin (as Total Suspended
Solids). To treat this wastewater, DuPont intends to pump the majority of the PVF -3 process
wastewater directly to the third clarifier, which would remove the resin solids as part of the
activated sludge removed from the WWTP system. Ultimately the resin solids would be
removed from the system as part of the wasted sludge that is sent off site to a Subpart D landfill.
Approximately 3% of the PVF -3 process wastewater contains a cleaning solution will be sent to
the headworks of the site's WWTP.
The PVF -3 Manufacturing Facility would have a process wastewater stream containing a
cleaning solution or surfactant. This wastewater stream, representing approximately 3% of the
total PVF -3 process wastewater, would be sent to the headworks of the site's WWTP for
biological treatment.
Finally, non -contact cooling, condensate, and stormwater from the PVF -3 Manufacturing
Facility will be discharged directly to Outfall 002 via the site's non -contact water ditch.

DuPont Company — Fayetteville Works
NPDES Permit No. NC0003573
Supplemental Information
Supplemental Information — Permit Renewal Application — Apri129, 2011
Current Operating Conditions
Butacite® Manufacturing: The DuPont Company — Fayetteville Works' Butacite®
manufacturing area produces two final products. DuPontTM Butacite® Interlayer plastic sheeting
is the final product used in safety glass such as automobile windshields. Polyvinyl butyral
(PVB) resin is shipped off-site as a transfer to other DuPont locations for final processing.
Wastewater generated from this manufacturing facility is treated in the site's biological
wastewater treatment plant ("WWTP").
Nafion® Manufacturing: The DuPont Company — Fayetteville Works' Nafion®
manufacturing area produces five final products. DuPontTM Nafion® Membrane is a plastic film
used in the chloroalkali industry and in electrochemical fuel cells. Nafion® Resins are
ultimately extruded into a finished film. The FLPR Vinyl Ether and HFPO monomers are
shipped to other DuPont locations to produce various fluorochemical products such as DuPontTM
Teflon& Wastewater generated from this manufacturing facility is neutralized and discharged to
the WWTP.
PPA Manufacturing: The DuPont Company — Fayetteville Works' PPA manufacturing
area produces several polymer processing aids. The processing aids produced in this unit are
used to produce fluoropolymers and fluorinated telomers, but none of the produced processing
aids are used at the Fayetteville Works site. This facility was started up in November 2002. All
process wastewater generated from this manufacturing facility is collected and shipped off-site
for disposal. No process wastewater from this manufacturing facility is discharged to the site's
biological WWTP or to the Cape Fear River.
SentryGlas® Manufacturing: The DuPont Company — Fayetteville Works' SentryGlass
manufacturing area produces DuPontTM SentryGlas® ionoplast interlayer laminate. SentryGlasS
interlayer is used for laminated safety glass in side, rear, and overhead automobile windows. It
is also used in architectural applications desiring safety glass. This facility was started up in
June 2005. There is no contact process wastewater generated from this manufacturing facility,
therefore only sanitary waste from this area is treated in the WWTP. This manufacturing facility
does discharge non -contact cooling water to a surface ditch and ultimately to Outfall 002.
PVF Manufacturing: The DuPont Company — Fayetteville Works' PVF manufacturing
area produces polyvinyl fluoride resin is used in the electronics industry as a backing for
photovoltaic cells, as well as many other uses. The PVF -1 facility was constructed in 2006-2007
and was started up in September 2007. The PVF -2 facility was constructed in 2008-2010 and
was started up in June 2010. Process wastewater generated from this manufacturing facility is
treated in the WWTP.

DuPont Company — Fayetteville Works
NPDES Permit No. NC0003573
Supplemental Information
Supplemental Information — Permit Renewal Application — April 29, 2011
Form 2C Permit Application
Data Unavailable
The Outfall 001 and Outfall 002 analytical results for Bis(chloromethyl) ether were not available
at the time of this permit renewal application submittal. These absent analytical results are
indicated with asterisks (***) on Page V-4 of Form 2C. This data will be submitted as an
addendum when the analytical report is received.

" V DuPont Company — Fayetteville Works
NPDES Permit No. NC0003573
Supplemental Information
Supplemental Information — Permit Renewal Application — April 29, 2011
Sludge Management Plan
The DuPont - Fayetteville Works operates a Class 3 Wastewater Treatment Plant which is
comprised of a single -stage activated sludge biological system.
Excess sludge is removed from the system by diverting part of the Recycled Activated Sludge (at
approximately 0.6% solids) from the clarifiers to a Dissolved Air Floatation ("DAF") unit for
initial thickening.
The sludge from the DAF (at approximately 3% solids) is transferred to a Mix Tank where
polymer agents are added to enhance the dewatering process.
The semi -thickened sludge is transferred from the Mix Tank to a Rotary Filter for final
thickening, whereby the sludge is thickened to 6% solids.
The thickened sludge is then transferred to a Screw Press where it is dewatered to a concentration
of 9-20% solids.
Following the Screw Press, the sludge is typically dried in steam heated dryers to a concentration
of 40-55% solids.
On the average, the weekly quantity of generated dried sludge is approximately 23,000 lb.
The dried sludge, or on occasion the dewatered sludge, is transported off-site to a commercial
Subtitle D landfill. This sludge is currently being disposed of at the Waste Industries "Sampson
County" Landfill near Roseboro, NC.

-40
DuPont Company - Fayetteville Works
NPDES Permit NC0003573.. .
Total Volume of the Water Handling System Between Entry of Biocidal Product and NPDES
Discharge Point
Wastewater Treatment
Plant Unit
Volume
milliongallons)
Equalization Basin
0.850
Pre -Digester Tank
0.250
Aeration Tank
1.700
#3 Clarifier
0.679
TOTAL
3.479
Flow Diagram from Entry Point of Biocidal Product (PVF -3 Cooling Tower) to the NPDES
Discharge Point (NPDES Outfall 002)
PVF -3 j WASTEWATER NPDES
COOLING TREATMENT OUTFALL
TOWER PLANT 002

fe\/14AAr A,, UI) PtYM4 (,,eAt
Bclnick, Tom
From: Belnick, Tom
Sent: Wednesday, October 06, 2010 3:30 PM
To: Pickle, Ken; Lawyer, Mike
Cc: Bennett, Bradley
Subject: RE: Dupont Fayetteville Works NPDES N6NG0003573
/Qlso10
I've already sent an NPDES no comment reply back to CG&L. The relocation was approved in a permit mod dated
2/26/2008. There was no discussion of a new sediment basin in that mod, just outfall relocation due to the sediment
issues within the effluent channel. This permit expires 10/31/2011, and I don't envision reopening the permit before
renewal. I can add the sediment basin as a new treatment component at that time, but the permit writer will discuss its
purpose with DuPont. I'll put this email in the permit file, as a notice to the next permit writer to discuss any remaining
SW issues.
Tom Belnick
Supervisor, Complex NPDES Permitting Unit
NC DENR/Division of Water Quality
1617 Mail Service Center, Raleigh, NC 27699-1617
[phone]; fax [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Pickle, Ken
Sent: Wednesday, October 06, 2010 10:50 AM
To: Lawyer, Mike
Cc: Bennett, Bradley; Belnick, Tom
Subject: RE: Dupont Fayetteville Works NPDES No. NC0003573
Hi Mike,
Further comments: Didn't mean to leave you hanging, just got sidetracked.
a) Consider that 12MGD is our current working number for the wastewater discharge flow. You think that's
erosive? It has been before. So, I suspect that the sediment basin is there to address the wastewater discharge
erosion on a day -in -and -day -out basis.
b) The boundary between NPDES and SPU may be unclear in some cases. My perspective is that this entire system
is an NPDES system by virtue of all the stormwater being commingled with a wastewater discharge (I don't think
it matters that the wastewater discharge is a 'partially treated' discharge during part of the run.)
c) Consistent with that perspective, this is not a 'stormwater' basin: it's a wastewater basin, maybe a 'tertiary
sedimentation' basin, or whatever lingo is appropriate in the wastewater world. We probably should see if the
NPDES guys think this is their basin, or not. This is critical in responding to the question from the guys at CG&L.
d) Mike, I agree, if there will be a remnant stormwater-only discharge from the old wooden channel, then the
facility will need a stormwater permit for it. As you suggest one path would be just to simply address it with
modifications to the existing NPDES wastewater permit. We have some of those permits still in our universe of
NPDES permits. But, both SPU and NPDES are trying to move away from combined permits for administrative
efficiency reasons. As weird as it might sound, it's easier/quicker/more efficient for the permittee and for the
two units, when we issue permits separately, rather than in combo permits. Suggest we get Tom Belnick's input
on this point, too. It's possible he may see it differently in this particular case. You may see it differently, too.
It's possible that Tom may want to just modify the current NPDES permit by adding stormwater provisions, and
address the splitting out of stormwater into two permits at the next scheduled renewal of his NPDES permit.
Tom?

Ken
From: Lawyer, -Mike
Sent: Friday, October 01, 2010 2:13 PM
To: Pickle, Ken; Bennett, Bradley
Cc: Patterson, Robert; Henson, Belinda; Rawls, Paul; Ventaloro, Julie
Subject: RE: Dupont Fayetteville Works NPDES No. NC0003573
Yes, I neglected to mention this facility's water usage. My understanding is that they withdrawal approximately 12mgd,
but only use what they require for processing (not sure how much) and send the rest back to the river via their current
outfall. I believe this has been the major cause for the erosion in the effluent channel and subsequent sediment
deposition into the river just downstream of L&D #3.
I would be curious about the wooden channel that serves as their current conveyance of general wastewater and
stormwater. If this channel is to remain, then its logical to presume that stormwater from portions of the facility would
continue to enter and discharge from it. This may need to be added to their NPDES wastewater permit as a stormwater-
only outfall to be monitored in addition to the relocated ww outfall.
uX=
Michael Lawyer, CPSWQ
Environmental Specialist
NCDENR-Division of Water Quality
Surface Water Protection Section
Fayetteville Regional Office
Direct: [phone]
Main: [phone]
Fax: [phone]
e-mail: [e-mail] (please note my current e-mail address)
*E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Pickle, Ken
Sent: Friday, October 01, 2010 1:38 PM
To: Lawyer, Mike; Bennett, Bradley
Cc: Patterson, Robert; Henson, Belinda; Rawls, Paul; Ventaloro, Julie
Subject: RE: Dupont Fayetteville Works NPDES No. NC0003573
Bradley,
Other thoughts: I would suspect that the water usage of this facility is quite large. Aerial photos make it seem
like their water intake is immediately above the dam and lock, and their discharge is immediately downstream
of the dam and lock. Now they're proposing to return the water upstream of the lock and dam, instead of
downstream. Who might be concerned about any affect on the dam? The Corps?
NPDES wastewater ATC: Just two additional comments. First: To us this is really not a 'stormwater' basin that
they're building, right? It's a settling basin to address the sediment load picked up as the wastewater discharge

` (augmented by storm flows) erodes the effluent channel, right? The flows are commingled (all now
wastewater), and it's being built under a wastewater permit. This all looks ok to me.
Second NPDES wastewater comment: In this case, any measurement of solids at internal outfall #001 masks the
sediment load delivered by the erosion of the effluent channel. (As I read the RIMS information, NC0003573
requires TSS measurements at internal outfall #001, but not at outfall #002.) What regulatory requirement is
driving this project? A new settling basin and the new 60" and 48" discharge lines have got to be costly. Must
be the Corps?
• 1 wonder if our brothers over in NPDES might want to add TSS to #002?
• NPDES stormwater? if it's all captured on site and it's all in the wastewater outfall, no comment. (Other
unpermitted stormwater outfalls?)
o WS -IV CA water supply according to BIMS.
• I don't think that we in SPU have any involvement in this project (except via NCG01 at the time of construction.)
Ken
From: Lawyer, Mike
Sent: Friday, October 01, 2010 10:32 AM
To: Bennett, Bradley
Cc: Patterson, Robert; Pickle, Ken; Henson, Belinda; Rawls, Paul
Subject: RE: Dupont Fayetteville Works NPDES No. NC0003573
This facility does not have a separate stormwater permit as their NPDES wastewater permit covers stormwater
discharges in addition to wastewater plant effluent and general wastewater from a non -contact cooling tower and a
boiler. General wastewater discharges flow into a wooden ditch, which also receives stormwater. Discharges from the
facility's WWTP (internal outfall 001) also join the wooden ditch just prior to entering what is currently their effluent
channel to the Cape Fear River (outfall 002) and ultimately discharging into the River downstream of Lock and Dam #3.
My understanding of the reason they are proposing to reroute their discharge point, which would end up being
upstream of L&D #3, is that a large amount of sediment has been deposited over time into the River through the
effluent channel due to the amount and velocity of their discharges.
As far as their proposal for a stormwater basin, I'm assuming it would be to aid in detention and reduce velocity of
discharges. Bladen County is not a Phase II county and the facility is not located within an HQW or ORW watershed. The
only possible post -construction requirement might be under the Water Supply rules as that portion of the Cape Fear has
been recently reclassified as WS -IV due to the installation of a new intake near the Smithfield Packing facility in Tar Heel.
According to revised maps, the WS watershed extends from the new intake upstream into Cumberland County and
would cover the DuPont facility located near the Bladen/Cumberland County line. I don't know how much property is
owned by DuPont, but if there is any installation of new BUA associated with the outfall rerouting project and it would
put them over the 24% density threshold, then an engineered BMP would be required. The reclassification became
effective on 1/1/09 and according to a document we have concerning the reclassification, local governments had 270
days after the effective date to develop or modify water supply protection ordinances to meet the state's minimum
requirements.
Mike
Michael Lawyer, CPSWQ

J
Environmental Specialist .�
NCDENR-Division of Water Quality
Surface Water Protection Section
Fayetteville Regional Office
Direct: [phone]
Main: [phone]
Fax: [phone]
e-mail: [e-mail] (please note my current e-mail address)
*E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Bennett, Bradley
Sent: Thursday, September 30, 2010 4:08 PM
To: Lawyer, Mike
Cc: Patterson, Robert; Pickle, Ken
Subject: FW: Dupont Fayettevile Works NPDES No. NC0003573
Hey Mike,
Take a look at the request from CG&L below. Any thoughts on this one. It doesn't appear that they have an NPDES
Stormwater permit currently. I'm not sure if they have the stormwater basin for any other reasons (post -construction
permit of some type?).
Robert, Ken — let me know if you have any feedback on this one also.
Thanks
BB
Bradley Bennett
Stormwater Permitting Unit
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Phone: [phone]
Fax: [phone]
Email: [e-mail] (New Email Address)
Web: http://portal.ncdenr.org/web/wq/ws/su
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third
parties
From: Tsadwa, Steve
Sent: Wednesday, September 29, 2010 5:16 PM
To: Bennett, Bradley; Belnick, Tom
Cc: Henson, Belinda; Allen, Trent
Subject: Dupont Fayettevile Works NPDES No. NC0003573
We are reviewing an Authorization to Construct (ATC) application for Dupont at this facility that involves the relocation
of Outfall 002. The discharge from NPDES permitted outfall system is conveyed by a new open channel system (about
3,000 ft long) to a new storm water management basin and finally discharging through approximately 1,600 If of 48"
4
•a

and,68" piping to the Cape River. Outfall 002 flows consist of storm water, non -contact cooling water, boiler blowdown
$c condensate, and WWTP effluent from internal Outfall 001. All of this flow is proposed to be routed through the
stormwater basin. We want to make sure there are no other applicable permits or reviews (such as stormwater) that
are required prior to issue of an ATC. We appreciate all your review comments and feedback.
1= f
Steve "Tesfu" Tsadwa, Environmental/Chemical Engineer
Design Management Unit
Construction Grants & Loans Section
1633 Mail Service Center
Raleigh, NC 27699-1633
919.715.6230 (phone)
919.715.6229 (Fax)
[e-mail]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may
be disclosed to third parties.