4. 2012 permit

Beverly Eaves Perdue
Governor
North Carolina Department of Environment and Natural Resources
Division of Water Quality
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 facili
ty.
• 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 Maii Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, Norttr Carolina 27604
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748
Internet: www,ncwaterquallty.org
An Equal Opportunity 1 Affirmallve Action Employer
NorthCarolina
�aturall

• 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,
tAv"`
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, Norih Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service;1-877-623-6748
Intemet: www.ncwaterquality.org
An Equal Opportunity l Affirmalive Acton Employer
NorthCarolina
�atr�ra!!t�

Permit NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NA'T'URAL RESOURCES
DIVISION OF WATER QUALITY
NATION
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
ELiMiNA
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.
�l Division of Water Quality v v
By Authority of the Environmental Management Commission

Permit NCO003573
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, Tberefore, 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:
1. Continue to operate existing wastewater treatment facilities consisting of:
• equalization;
• neutralization;
• aerated pre -digester tank;
• nutrient feed system;
0 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 *2
3. Discharge stormwater, non -contact cooling water, boiler blowdown and condensate,
cooling tower blowdown, and treated wastewater effluent from 0012 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.

DuPont Fayetteville Works - NC0003573
USGS Quad Name: Duart
Existing
Receiving Stream: Cape Fear River
Stream Class: C, WSM
Subbasin: Cape Fear - 030616
Lat.: 34°49'53"
Long.: 78°49'23"
NOYfI1 Not to SCALE

Pernnit 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
Average
Daily
Maximum
Measurement
Fre uenc
Sample
lype
Sample
Location
Flow (MGD)
2.0
Continuous
Recording
Effluent
BODS, 20° C
182.6 lbs/day
484.7 lbs/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.

Pernut NC0003573
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - 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:
PAPAN1'ER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average'
Daily
Maximum'
Measurement
Frequency
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:
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)0 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.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING' REQUIREMENTS
Monthly
Average'
Daily
Maximum'
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 µg/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
0203
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)0 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 0011 Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT LIMITATIONS MONITORING REQUIREMENTS
PARAMETER Monthly Daily Measurement Sample Sample
Average Maximum Frequency e Location'
Flow (MGD) Continuous Recording Effluent or
Influent
Effluent,
Temperature, °C See Note 2 Daily3 Grab 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 Month' Composite Effluent
(NO2+NO3+TIS y P
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 @ 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
Ceriodaphnia 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 fest procedure perfornied as the first test of any single quarter results in a failure or ChV bel "vv 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 toxi
city 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 an
y 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 organ
ism
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
To: Chernikov, Sergei Alp#�.
Subject: RE: DuPont Permit
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. I 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 you!
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 Nvith 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.
1

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.
From: Benoy, Debra
Sent: Wednesday, November 02, 2011 9:40 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, 2011 9:25 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.

11NITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION 4
ATLANTA FEDERAL CENTER
61 FORSYTH STREET
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 276994617
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].
Pamala Myers ,'
Municipal and Industrial NPDES Section
Pollution Control and Implementation Branch
Water Protection Division
i
SEP 2f 2011
Internet Address (URL) ®http;//www,epa,gov
Recycled/Recyclable . Printed wflh Vegetable Oil Based Inks on Recycled Paper (Minimum 30% Postconsumer)

NORTH' CAROLINA
Cumberland County
Public Notice
North Carolina
Environmental Management
Commission/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Notice of Intent to Issue a
NPDES Wastewater Permit
The North Carolina
Environ -
mental Management
Com-
mission proposes to
issue a
NPDES wastewater
dis-
chargeperruit
to the
person(s) hsted below.
Written comments regarding
the proposed permit will be
accepted until 30 days after
the publish date of this no-
tice. the Director of the NC
Division of Nater Quality
(DWQ) may hold a public
hearing should there be a
significant degree of public
Intel L Please mail com -
ments and/or information re -
to DWQ at the above
address. Interested persons
may visit the DNQ at 512 N.
Salisbury Street, Raleigh, NC
to review information on file.
Additional information on
NPDES perdts and this no-
tice may be found on our
website:
bttp://portal,ncdenr.org/iveb/
wg/swp/ps1npd es/calendar,
or y ca
g [phone].
DuPont has appli
ed For re-
newal of NPDES permit
NC0003573 for Fayetteville
Works facility in Bladen
County. This facility dis-
charge is treated industrial
wastewater to Cape Fear
River, Cape Fear River Basin.
Notice of Intent to Issue a
NPDES Wastewater Permit
913 3372321
Before the undersigned, a Notary Public of said County and state, duly
commissioned and authorized to administer oaths, affirmations, etc.,
personally appeared. CINDY L. OROZCO
Who, being duly sworn or affirmed, according to law, doth depose and say
that he/she is LEGAL SECRETARY
of THE FAYETTEVILLE PUBLISHING COMPANY, a corporation organized
and doing business under the Laws of the State of North Carolina, and
publishing a newspaper known as the FAYETTEVILLE OBSERVER, in the
City of Fayetteville, County and State aforesaid, and that as such he/she
makes this affidavit; that he/she is familiar with the books, files and
business of said Corporation and by reference to the files of said publication
the attached advertisement of CL Legal Line
INTENT TO ISSUE A NPDES WASTEWATER PERMI
of NC DIVISION OF WATER QUALITY
was inserted in the aforesaid newspaper in space, and on dates as follows:
9/3/2011
and at the time of such publication The Fayetteville Observer was a
newspaper meeting all the requirements and qualifications prescribed by
Sec. No. 1-597 G.S. of N.C.
The above is correctly copied from the books and files of the aforesaid
corporation and publication.
LEGAL SECRETARY
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.
Pamela 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 23 2011 for the renewal of its
NPDES permit. The DuPont Fayetteville Works manufacturing facility includes the ButaciteO plant, the NafionO
plant, the TeflonO 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:
Buticite a0 Manufacturing
• DuPontTM Buticite0 Interlayer plastic sheeting — This is the final product used in safety glass such as
automobile windshields.
Butacite® is manufactured in large roll
s 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 facili
ties for final processing.
Wastewaters generated at this facility are treated in the on-site wastewater treatment plant.
NafionOO Manufacturing
Five products are manufactured at the Nafion RO manufacturing facility:
• DuPontTM 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 (mi2):
4790
x
Lat. 340 50' 18" N Long. 78° 49' 47" W
Summer 7Q10 (cfs)
791
Winter 7Q10 (cfs):
30Q2 (cfs)
Average Flow (cfs):
5676
IWC (%):
3.3
Summary:
E.I. DuPont de Nemours & Co submitted a permit renewal application on May 23 2011 for the renewal of its
NPDES permit. The DuPont Fayetteville Works manufacturing facility includes the ButaciteO plant, the NafionO
plant, the TeflonO 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:
Buticite a0 Manufacturing
• DuPontTM Buticite0 Interlayer plastic sheeting — This is the final product used in safety glass such as
automobile windshields.
Butacite® is manufactured in large roll
s 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 facili
ties for final processing.
Wastewaters generated at this facility are treated in the on-site wastewater treatment plant.
NafionOO Manufacturing
Five products are manufactured at the Nafion RO manufacturing facility:
• DuPontTM Nafion® membrane — a plastic film used in the chloroalkali industry and in
electrochemical fuel cells;
Fact Sheet
NPDES NC0003573
Page 1

• NafionO resins — ultimately extruded into a finished film;
• NafionO solution — generated during the production of resin;
• FLPR vinyl ether monomers — shipped to other DuPont locations to produce various fluorochemical
products such as DuPontTnj Teflon®.
• HFPO monomers — shipped to other DuPont locations to produce various fluorochemical products
such as DuPontTni 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 PlusO - 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. contact
n-
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 Tedlar0 fluoropolymer film manufactured at other DuPont facilities. Tedlar0 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 Guideli
nes:
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 Nafion0 solution, Vinyl Ether and HFPO monomers manufacturing. SIC code 2821 includes
TeflonO resin, polyvinyl fluoride resin, polyvinyl butyral resin and Nafion0 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 li
mits - 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
OCPSF process flow.
Process flow- 0.90
Effluent Limitations
Effluent Limitations
Domestic WW
Proposed limits
concentration
ass limits
mass limits
mass limits
Parameter
Maximum
Maximum
Monthly
Daily
Monthly
Daily
Monthly
Daily
Monthly
Daily
Average
Maximum
Average
Maximum
Average
Maximum
Average
(mg/1)
(lb/day)
(lb/day)
(lb/day)
(lb/day)
(lb/day)
(ib/day)
BOD64
24
481.7
180.6
3
2
484.7
182.6
TSS
130
40
978.5
301.1
3
2
981.5
303.1
25 M(iD.
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:
® 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

Location:
Station #:
Latitude:
Agency:
Time period
Field
D.O. (mg/L)
Ambient Monitoring System Station
NCDENR, Division of Water Quality
Basinwide Assessment
CAPE FEAR RIV AT POWER LINES NR TOLARSVILLE
B8302000 Hydrologic Unit Code: 03030005
34.78434 Longitude: -78.79825 Stream class: C
MCFRBA NC stream index: 18-(26)
01/04/2006 to 12/14/2010
# # Results not meeting EL Percentiles
results ND EL # % %Conf Min 10th 25th 50th 75th 90th Max
255
0
<4
0
0
255
0
<5
0
0
pH (SSU) 255 0 <6 14 5.5
255 0 >9 0 0
Spec. conductance 255 0 N/A
(umbos/cm at 25°C)
Water Temperature (°C) 255 0 >32 0 0
Xher
TSS (mg/L) 60 2 N/A
Turbidity (NT(J) 60 0 >50 0 0
Nutrients (mg/L)
NH3 as N 60 18 N/A
NO2 + NO3 as N 60 0 N/A
TKN as N 60 3 N/A
Total Phosphorus 51 1 N/A
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
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

Location:
Station #:
Latitudes
Agency:
Time period;
'1 f
Ambient Monitoring System Station
NCDENR Division of Water Quality
Basinwide Assessment
CAPE FEAR RIV AT DUPONT WATER INTAKE UPS LOCK AND DAM 3
B8290000 Hydrologic Unit Code: 03030005
34.84945 Longitude: -78.82629 Stream class° C
MCFRBA NC stream index: 18-(26)
01/09/2006 to 12/15/2010
Field
D.O.(mg/L) 253 0
<4
253 0
pH (SU) 253 0
253 0
Spec. conductance 253 0
(umbos/cm at 25°C)
Water Temperature (°C) 253 0 >32
Other
Chlorophyll a (ug/L) 47 3 >40
TSS (mg/L) 60 I
Turbidity (NTU) 60 0
Nutrients (mg/L)
NH3 as N 60 31 N/
NO2 + NO3 as N 60 1
TKN as N 60 6
Total Phosphorus 51 0
Metals (ug/L)
Results not meeting EL Percentiles
%Conf Min 10th 25th 50th 75th 90th Max
0 0 3.3 8 13.2 22.4 27.6 29.1 31.1
3 6.4
0
0
4.3
5.5
6.2
7.2
8.7
10.5
12.5
<5
7
2.8
4.3
5.5
6.2
7.2
8.7
10.5
12.5
<6
10
4
5.5
6.1
6.4
6.8
7.2
7.4
8.7
>9
0
0
5.5
6.1
6.4
6.8
7.2
7.4
8.7
N/A
2
2
51
98
108
124
144
163
212
0 0 3.3 8 13.2 22.4 27.6 29.1 31.1
3 6.4
1
1
3 6
18
34
44
N/A
1
4
6 10
13.8
22.9
466
>50 1 1.7
3.1
4.4
6.9 10.4
13.3
24
247
A
0.02
0.02
0.02
0.02
0.04
0.06
0.2
N/A
0.02
0.46
0.56
0.7
0.85
1.19
1.55
Ni
0.2
0.2
038
0.52
0.71
0.97
1.5
Ni
0.04
0.07
0.08
0.12
0.14
0.18
0.38
Aluminum, total (Al)
9
0
N/A
Arsenic, total (As)
9
9
>10
Cadmium, total (Cd)
9
9
>2
Chromium, total (Cr)
9
9
>50
Copper, total (Cu)
9
8
>7
Iron, total (Fe)
9
0
>1000
Lead, total (Pb)
9
0
>25
Mercury, total (Hg)
9
0
>0.012
Nickel, total (Ni)
9
0
>88
Zinc, total (Zn)
9
7
>50
Fecal Coliform Screening(#/100mL)
# results: Geomean # > 400:
59 52.5 3
%Conf:
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
151
151
190
284
366
1040
1040
0
0
10
10
10
10
10
10
10
0
0
0.5
0.5
0.5
0.5
0.5
0$
0.5
0
0
5
5
5
5
5
5
5
0
0
2
2
2
2
2
4
4
1
ILL
543
543
584
659
755
1120
1120
0
0
1
1
1
1
1
1
1
0
0
0.002
0.002
0.002
0.003
0.004
0.005
0.005
0
0
1
1
1
1
1
2
2
0
0
10
10
10
10
11
21
21
%Conf:
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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Date
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29!
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46.
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
Fluoride
Data BDL=1/2DL Results � � �
� 9,833.0 9,833.0 Std Dev. 10024.8860
r
_'� 8,904.7 8,904.7 Mean 14377.6389
9,196.9 9,196.9 n 77
-' 9,600.9 9,600.9
� 4,831.7 4,831.7 Mult Factor = 1.61
i�� b,385.1 5,385.1 Max. Value 5369.4 ug/L
G,,'_„% 8,922.4 8,922.4 Max. Pred Cw 86456.0 ug/L
j_ 6,916.6 6,916.6
.3 24,332.8 24,332.8
' 26,686.1 25,586.1
-+ 23,466.2 23,466.2
11,119.8 11,119.8
' � 38,821.7 38,821.7
� 8,079.1 6,079.1
22,328.2 22,328.2
t�� 27,038,3 27,038.3
36,523.7 36,523.7
,; 6,259.6 6,259.6
tV,w,� 53699.4 53,699.4
t `� 20,458.2 20,458.2
� 4,788.4 4,788.4
[� 36,918.1 36,918.1
ria
15,194:9 15,194.9
11,806.1 11,806.1
�� 10,978:5 10,978.5
21,879.5 21,879.5
18,132.9 18,132.9
3� ' ..12,386.4 12,386.4
3,079.9 3,079.9
�� 18,719.6 18,719.8
� � 23,355.4 23,355.4
�� 23,705.7 23,705.7
13,481,3 13,481.3
�'� 44,699.7 44,699.7
8,175.6 8,175.6
2,323.0 2,323.0
3,243.1 3,243.1
� 19,262.5 19,262.5
�`� 21,745.9 21,745.9
�� 22,250.4 22,250.4
� :'r, 22;765.8 22,765.8
°� 8,129.4 8,129.4
,� � 11,036.1 11,036.1
��� 11,898.8 11,898.8
7,744.5 7,744.5
,, rr� 12;744.6. 12,744.6
11,492.8 11,492.8
14,853.4 14,853.4
` = 5,477.1 5,477.1
.13,552.8 13,552.8
��'j 12,033.0 12,033.0
<<-,' 14,312.7 14,312.7
�'. 12,834.6 12,834.6
12,575.8 12,575.8
4 ? 10,039.9 10,039.9
3 4,454.7 4,454.7
3,487.1 3,487.1
18,221.3 18,221.3
6,246.9 6,246.9
7,630.6 7,630.6
i ;? 16,809.5 16,809.5
' 9,915.1 9,915.1
� �' 14,963.5 14,963.5
6,992.3 6,992.3
� 20,664.0 20,664.0
4-
3573-RPA-2011.x1sm, data
8!1012011

71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
10$
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127 I
128
129
130
131
132
133
134
135
136 'r
137
138
139
140 ti
141
142
143
144
6,281.4
6,281.4
16,818.9
161818.9
281589.1
28,589.1
51221.0
5,221.0
101889.5
10,889.5
17,870.7
17,870.7
101591.2
10,591.2
-5-
3573-RPA-2011.x1sm, data
8/10/2011

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A'(2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
NC0005274
During Lite 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:
acenapntnene 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
3,4-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 2.017 0.783
Chloroform 0.346 0.158
2 -Chlorophenol 0.738 0.233
Chrysene _ 0.444 0.166 -
Di}n-butyl phthalate 0.429 0.203
1,2 -Dichlorobenzene 1.227 0.580
1,3-13ichlorobenzene 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-Dichloroethylene 0.188 0.120
1,24rans-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 0.587
2,4-13initrophenol 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
Naphthalene 0.444 0.166

A(2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
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 1249.963 500.888
Total Copper, 25.441 10.914 1525.225 654.313
Total Cyanide 9.032 3.161 541.500 189.525
Total Lead 5.194 2.409 311.363 144.400
Total Nickel 29,957 12.720 1795.975 762.613
Total Zinc 19.645 7.903 " 1177.763 473.813
1,2,4-Tnchlorobenzene 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 2.017 0.783
Total Copper
Total Cyanide
Total Lead
Total Nicke
Total c
NC0005274

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
LLL
THRU: Belinda S. Henson, Water Quality Supervisor
Fayett
eville Regional Office
SUBJECT: NPDES Staff Report and Recommendations
NPDES Permit No. NC0003573
DuPont WWTP
Bladen County
Please find attached the staff report and recommendations ofthe Fayetteville Regional Office
concerning the renewal of subject NPDES Permit.
If you have any questions or require any further information, please advise.

SOC PRIORITY PROJECT: YES_ NO X
If Yes, SOC No.
To: Permits and Engineering Unit
Surface Water Protection Section
Attention: Dina SArinkle
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.
3
6.
fll
Date of Investigation: February 15, 2011
Report Prepared by: Dale Lopez, Environmental Specia
Persons Contacted and Telephone Number:
s
{ JUN
r
910-678-1219
Michael Johnson, Environmental Manager
Fayetteville Works
910-678-1155
Directions to Site: This facility is located at the Bladen -Cumberland County line, between
Highway 87 and the Cape Fear River.
Discharge Point(s), List for all discharge points:
Outfa11001
Outfa11002
Future Outfa11002
Latitude: 34° 50' 22.94" N
Latitude; 34° 50' 19.64" N
Latitude: 34° 50' 17.72" N
Longitude: 78° 50" 11.66" W
Longitude: 78° 50" 11.52" W
Longitude: 78° 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. H23 -SE. U.S.G.S. Quad Name: Duart
, NC
Site: Land available for expansion and upgrading: es, DuPont owns approxi 2,600
acres at this site.
Topography and relationship to flood plain: Relatively flat.

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'all 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 NafionV 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 II -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. Dates) 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.

2.
3.
4.
PART II - DESCRIPTION OF WASTES AND TREATMENT WORKS -(continued)
The biologically treated wastewater was then sent to two in -ground clarifiers (1195000
gallons and 168,000 gallons respectively) in parallel. The clarified treated effluent was
discharged to and through Outfall 0016
The wasted sludge was sent to a Dissolved Air Floatation (DAF) unit, then to a47,000
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)3
2) the addition of Clarifier #3.
g. Possible toxic impacts to surface waters: N/A
h. Pretreatment Program (POTWs only):
In development _
Should be required
Approved
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 (att
ach completed rating sheet): Grade III
SIC Code(s):
Primary.
Secondary
Main Treatment Unit Code:

PART III- OTHER PERTINENT INFORMATION
1. 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.
3. 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.
5. 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 1, 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 W WTP, and 4) the influence of the storm water volume
from a rain event.
PART N -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.
Date

Mr. Gil Vinzani
NCDENR —Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
SUBJECT: Changes of Discharge of Toxic Substances
NPDES Permit No. NC0003573
Dear Mr. Vinzani:
DuPont Fluoroproducts
22828 NC Highway 87 W
Fayetteville, NC 28306-7332
December 55 2007
This letter is the written notification, as required by Part III(C)(b) of the subject NPDES
Penult, 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 fr
om 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:
Sent.
To.
Cc:
Subject:
Belinda and Marl:
Per your instructions,
is planning
to start-up
(05-09-2011)
Michael E Johnson [[e-mail]]
Thursday, May 05, 2011 2:02 PM
Henson, Belinda; Brantley, Mark
Jamie R Lewis
Start Up of DuPont Third Clarifier
or Tuesday
this is the notification that the DuPont Company -
the wastewater treatment plant's third clarifier
(05-10-2011).
Fayetteville
Worl<s
on either Monday
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. Johnson
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.
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Korean
http://www.DuPont.com/corp/email disclaimer html
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