DEQp00022296

NPDES tflCIL�`I AND PERMIT DATA /2.5/96 13:11:58
UPDATE OPTION Tr„{ I D 5NU KEY NC.0003573
�� AMS
PERSONAL DATA FACILITY APPLYING FOR PERMIT AUG ol / REGION
FACILITY NAME> DUPONT-FAYETTEVILLE COUNTY> EN 06
ADDRESS: MAILING (REQUIRED) LOCATION (REQUIRED)
STREET: P.O. DRAWER Z STREET: STATE HIGHWAY 87 SOUTH
CITY: FAYETTEVILLE ST NC ZIP 28302 CITY: FAYETTEVILLE ST NC ZIP 28302
TELEPHONE [phone] DATE FEE PAID: 12/01/95 AMOUNT: 400.00
STATE CONTACT> NIZICH PERSON IN CHARGE MICHAEL JOHNSON
1=PROPOSED,2=EXIST,3=CLOSED 2 1=MAJOR,2=MINOR 1 1=MUN,2=NON-MUN 2
LAT: 3449540 LONG: 07849240 N=NEW,M=MODIFICATION,R=REISSUE> R
DATE APP RCVD 12/04/95 WASTELOAD REQS 12/07/95
DATE STAFF REP REQS 12/07/95 WASTELOAD RCVD 04/04/96
DATE STAFF REP RCVD 02/26/96 SCH TO ISSUE 06/08/96
DATE TO P NOTICE 04/24/96 DATE DRAFT PREPARED 04/16/96
DATE OT AG COM REQS / r DATE DENIED /
DATE OT AG COM RCVD / r DATE RETURNED t /
DATE TO EPA t t DATE ISSUED 07/25/96 ASSIGN/CHANGE PERMIT
DATE FROM EPA / r EXPIRATION DATE 05/31/01
FEE CODE ( 2 ) 1=(>10MGD),2=(>1MGD),3=(>O,1MGD),4=(<0,1MGD),5=SF,6=(GP25,64,79),
7=(GP49,73)8=(GP76)9=(GP13,34,30,52)0=(NOFEE) DIS/C 14 22 02 3E) CONBILL C )
COMMENTS:
MESSAGE: DATA MODIFIED SUCCESSFULLY

Stale of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Michael E. Mayberry
E.I. Dupont de Nemours &: Co., Inc.
P.O. Drawer Z
Fayetteville, North Carolina 28302
Dear Mr. Mayberry:
July 25, 1996
Subject: Permit Issuance
NPDES Permit NC0003573
E.I. Dupont - Fayetteville Works
Bladen County
In accordance with your application for discharge permit received on December 1, 1995, we are
forwarding herewith the subject State - NPDES permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the US Environmental Protection Agency dated December 6, 1983.
In response to DuPont's draft permit comment letters dated June 6, 1996 and July 22, 1996, the
following modifications/comments are offered:
Supplement to Permit Cover Sheet -
• The spelling of "neutralization" has been corrected.
• The specified reference in the permit application was not found. The wastewater treatment
system description has been modified as described in the Regional Office's staff report.
• The description of wastewaters discharged at Outfall 002 has been revised as requested.
• Designation of Outfall 004 as Outfall 003 - The compliance database does not allow an inactive
outfall to be reactivated for a different wastestream. In order to avoid confusion with
stormwater Outfalls 004 and 005, Outfall 006 will be specified for Nafion® ares _ ,„ treams.
Outfall 001-
• The outfall description now includes the Butacite® process,
projects.
and BCH Energy
• BOD5 and TSS Limits - The flow basis for these limits was a long-te.#
MGD based on the period of 1991 - 1995. The EPA guidance cited in arernlauii
992
Division memorandum was superceded by 58 Federal Register 36891, p,�93.
This guidance specified using the long-term average flow when applying i es.
Since flows from the more recent period of May 1994 through April 1996 are more
representative of current production, limits for BODS and TSS have been revised usip 00`<<.�-`
long-term average flow of 0.948 MGD."
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

• Monitoring for Total Nitrogen and Total Phosphorus - These requirements have been moved
to outfall 002 since that is the combined outfall to the Cape Fear River.
• OCPSF Priority Pollutant Limits - The mass limits have been revised utilizing the 0.948 MGD
flow previously discussed.
Outfall 002 -
- Narrative - This has been modified to include Nafion® and BCH Energy Project
wastestreams.
• Fluoride Daily Maximum Limit - A fluoride daily maximum limit of 7,917 lb/day has been
specified in the permit based on the State water quality standard of 1.8 mg/I and a wasteflow of
36,000 gpd.
• Monitoring for Total Nitrogen and Total Phosphorus - These requirements have been
transferred from outfall 001.
• Instream Monitoring Requirements - The monitoring frequency for temperature has been
corrected to weekly to match dissolved oxygen (DO) and conductivity. The reference for
instream fluoride monitoring has been moved from footnote "*" to footnote ****". The
upstream sampling location has been modified to Dupont's river pump station, however, DO,
temperature and conductivity maintain their upstream sampling requirement designation in this
permit since it is still Dupont's responsibility to provide this data even if it is measured by PWC
- Fayetteville. Dupont may attach PWC's downstream sampling data with their own DMR's, or
enter PWC's downstream data on Dupont's upstream DMR form in submitting this instream
monitoring data. Finally, the downstream sampling location has been modified to 4500 feet
downstream of Prospect Hall Landing as requested.
Outfall 006 (Outfall 004 in Draft Permit) -
- As discussed previously, Outfall 004 will be redesignated as Outfall 006 to avoid confusion
with Dupont's stormwater outfalls.
• Narrative - This has been modified to cover all Nafion® low biodegradable process
wastewaters.
• BODS Monitoring - This voluntary monitoring requirement has been added as requested. A
monthly frequency has been specified.
• Flow Limit - A monthly average flow limit of 0.036 MGD has been specified in accordance
with the long-term average flow from the Nafion® process area. BODS concentration limits of
24 mg/I (monthly average) and 64 mg/I (daily maximum) have been included for this outfall as
requested.
• OCPSF Priority Pollutant Limits - The limits required under 40 CFR 414 Subpart J een
changed from mass limits to concentration limits to ensure compliance at less t
flow.. �t
If any parts, measurement frequencies or sampling requirements containe . 'mss pew,6
unacceptable to you, you have the right to an adjudicative hearing upon n req�i thirty
(30) days following receipt of this letter. This request must be in the form o a written petitig,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with th fie` o s
Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27O. Unless;
such demand is made, this decision shall be final and binding.

Please take notice this permit is not transferable. Part II, EA. addresses the requirements to be
followed in case of change in ownership or control of this discharge.
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Environmental Management or permits required by the Division of Land Resources,
Coastal Area Management Act or any other Federal or Local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Mr. Greg Nizich at telephone
number 919/733-5083, ext. 541.
Sincerely,
Preston Howard, , P.E.
Enclosure
cc: Central Files
Mr. Roosevelt Childress, EPA
Fayetteville Regional Office, Water Quality Section
Facility Assessment Unit
Aquatic Survey & Toxicology Unit
Technical Assistance & Certification Group
Permits and Engineering Unit
��` g0 1996

Permit No. NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1,
other lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,
E.I. DuPont de Nemours & Company, Inc.
is hereby authorized to discharge wastewater from a facility located at
DuPont Automotive
NC Highway 87
Duart
Bladen County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III, and IV hereof.
This permit shall become effective September 1, 1996
This permit and authorization to discharge shall expire at midnight on May 31, 2001
Signed this day July 25, 1996
X Preston Howard, Jr., P.E., Director
Division of Water.Quality
By Authority of the Environmental ManagementGO
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Permit No. NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
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, a nutrient feed system, an aeration tank, dual clarifiers,
effluent flow measurement, a DAF unit, a rotary filter for sludge thickening, a sludge filter press
and steam heated sludge dryers (001); boiler blowdown from Dupont oil -fired boilers, boiler
blowdown and cooling tower blowdown from BCH Energy Project, once through cooling
water, treated wastewater effluent from Outfall 001, Nafion® low biodegradable process
wastewater from Outfall 006, and filter backwash discharge (002), located at DuPont
Automotive, NC Highway 87, Duart, Bladen County (See Part III of this Permit), and
2. Discharge from said treatment works at the location specified on the attached map into Cape Fear
River which is classified Class C waters in the Cape Fear River Basin.

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A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL N0003573
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge from outfall serial number 001. (Continued)
Effluent Characteristics
Mon. Avg
Daily Max
Daily Max Measurement
Sample
*Sample
lbs/day
lbs/day
Frequency+
Type
Location
Acenapthene
0.15
0.41
Annually
Grab
E
Acrylonitrile
0.67
1.68
Annually
Grab
E
Benzene
0.26
0.94
Annually
Grab
E
Carbon Tetrachloride
0.12
0.26
Annually
Grab
E
Chlorobenzene
0.10
0.19
Annually
Grab
E
1,2,4-Trichlorobenzene
0.47
0.97
Annually
Grab
E
Hexachlorobenzene
1.41 µg/1 Annually
Grab
E
1,2-Dichloroethane
0.47
1.46
Annually
Grab
E
1,1,1 -Trichloroethane
0.15
0.37
Annually
Grab
E
Hexachloroethane
0.15
0.37
Annually
Grab
E
1,1-Dichloroethane
0.15
0.41
Annually
Grab
E
1,1,2 -Trichloroethane
0.15
0.37
Annually
Grab
E
Chloroethane
0.72
1.86
Annually
Grab
E
Chloroform
0.15
0.32
Annually
Grab
E
2 -Chlorophenol
0.22
0.68
Annually
Grab
E
1,2 -Dichlorobenzene
0.53
1.13
Annually
Grab
E
1,3 -Dichlorobenzene
0.22
0.31
Annually
Grab
E
1,4 -Dichlorobenzene
0.10
0.19
Annually
Grab
E
1,1-Dichloroethylene
0.11
0.17
Annually
Grab
E
1,2-trans-Dichloroethylene
0.15
0.37
Annually
Grab
E
2,4-Dichlorophenol
0.27
0.78
Annually
Grab
E
1,2-Dichloropropane
1.06
1.60
Annually
Grab
E
1,3-Dichloropropylene
0.20
0.31
Annually
Grab
E
2,4 -Dimethylphenol
0.12
0.25
Annually
Grab
E
2,4-Dinitrotoluene
0.78
1.98
Annually
Grab
E
2,6-Dinitrotoluene
1.77
4.45
Annually
Grab
E
Ethylbenzene
0.22
0.75
Annually
Grab
E
Fluoranthene
0.17
0.47
Annually
Grab
E
Methylene Chloride
0.28
0.62
Annually
Grab
E
Methyl Chloride
0.60
1.32
Annually
Grab-
E
Hexachlorobutadiene
0.14
0.34
Annually
Grab
E
Naphthalene
0.15
0.41
Annually
Grab •
E .
Nitrobenzene
0.19
0.47
Annually
Grab
E
2-Nitrophenol
0.28
0.48
Annually
Grab
E
4-Nitrophenol
0.50
0.86
Annually
Grab
E
2,4-Dintrophenol
0.49
0.85
Annually
Grab
E
4,6-Dintro-o-cresol
0.54
1.92
Annually
Grab
E
Phenol
0.10
0.18
Annually
Grab
E
Bis(2-ethylhexyl)phthalate
0.71
1.94
Annually
Grab
E
Di -n -butyl phthalate
0.19
0.40
Annually
Grab
,
Diethyl phthalate
0.56
1.41
Annually
:Grab
f
Dimethyl phthalate
0.13
0.33
Annually w
Grab
-

Effluent Characteristics
Mon. Avg
Daily Max
Daily Max
Measurement
Sample
*Sample
lbs/day
lbs/day
Frequency+
Type
Location
Benzo(a)anthracene
0.15
***
Annually
Grab
E
Benzo(a)pyrene
0.16
***
Annually
Grab
E
3,4-Benzofluoranthene
0.16
***
Annually
Grab
E
Benzo(k)fluoranthene
0.15
***
Annually
Grab
E
Chrysene
0.15
***
Annually
Grab
E
Acenaphthylene
0.15
0.41
Annually
Grab
E
Anthracene
0.15
0.41
Annually
Grab
E
Fluorene
0.15
0.41
Annually
Grab
E
Phenanthrene
0.15
0.41
Annually
Grab
E
Pyrene
0.17
0.46
Annually
Grab
E
Tetrachloroethylene
0.15
0.39
Annually
Grab
E
Toluene
0.18
0.56
Annually
Grab
E
Trichloroethylene
0.15
0.37
Annually
Grab
E
Vinyl Chloride
0.72
1.86
Annually
Grab
E
Total PAH's * *
* * *
Annually
Grab
E
*Sample Location: E -Effluent
** Total PAH's are comprised of Benzo(a)anthracene; Benzo(a)pyrene; .3,4-Benzofluoranthene;
Benzo(k)fluoranthene, Chrysene, Dibenz (a,h) anthracene and Indeno (1,2,3 -ed) pyrene.
*** None of these parameters shall exceed the Total PAH limit of 57.0 µg/1
+ Should any annual monitoring result in detection of any OCPSF parameters contained in 40 CFR
414 Subpart I (excluding metals), then quarterly monitoring will begin immediately for the detected
parameter(s). After four consecutive quarterly samples resulting in non -detection are achieved, the
monitoring frequency will revert to annually.
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JUL 30 1996
atjj'aAI. FILES

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A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL N0003573
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge from outfall serial number 006 (Nasion® low -biodegradable
process wastewaters). (Continued)
Effluent Characteristics Daily Max Monthly Avg Measurement Sample *Sample
(ug/1) (ug/1) Frequency+ Type Location
Acrylonitrile 232 94 Annually Grab E
Benzene 134 57 Annually Grab E
Carbon Tetrachloride 380 142 Annually Grab E
Chlorobenzene 380 142 Annually Grab E
1,2,4-Trichlorobenzene 794 196 Annually Grab E
Hexachlorobenzene 256 196 Annually Grab E
1,2-Dichloroethane 574 180 Annually Grab E
1,1,1 -Trichloroethane 59 22 Annually Grab E
Hexachloroethane 794 196 Annually Grab E
1, 1 -Dichloroethane 59 22 Annually Grab E
1,1,2 -Trichloroethane 127 32 Annually Grab E
Chloroethane 295 110 Annually Grab E
Chloroform 325 111 Annually Grab E
1,2 -Dichlorobenzene 794 196 Annually Grab E
1,3 -Dichlorobenzene 380 142 Annually Grab E
1,4 -Dichlorobenzene 380 142 Annually Grab E
1,1-Dichloroethylene 60 22 Annually Grab E
1,2-trans-Dichloroethylene 66 25 Annually Grab E
1,2-Dichloropropane 794 196 Annually Grab E
1,3-Dichloropropylene 794 196 Annually Grab E
Ethylbenzene 380 142 Annually Grab E
Methylene Chloride 170 36 Annually Grab E
Methyl Chloride 295 110 Annually Grab. E
Hexachlorobutadiene 380 142 Annually Grab E
Nitrobenzene 6402 2237 Annually Grab E
2-Nitrophenol 231 65 Annually Grab E
4-Nitrophenol 576 162 Annually Grab E
2,4-Dintrophenol 4291 1207 Annually Grab E
4,6-Dintro-o-cresol 277 78 Annually Grab E
Tetrachloroethylene 164 52 Annually Grab E
Toluene 74 28 Annually Grab E
Trichloroethylene 69 26 Annually Grab E
Vinyl Chloride 172 97 Annually Grab E
*Sample Location: E -Effluent
+ Should any annual monitoring result in detection of any OCPSF parameters contained in 40 CFR
414 Subpart J (excluding metals), then quarterly monitoring will begin immediately for the detected
parameter(s). After four consecutive quarterly samples resulting in non -detection are achieved, th
monitoring frequency will revert to annually..
,may ✓^
JUL x01996 ,
CENZRpL

PART I
1. The permittee shall comply with Final Effluent Limitations specified for discharges in
accordance with the following schedule:
Permittee shall comply with Final Effluent Limitations by the effective date of the permit unless
specified below.
2. Permittee shall at all times provide the operation and maintenance necessary to operate the
existing facilities at optimum efficiency.
T 4, �•. 1Plw�
3. No later than 14 calendar days following a date identified in the above schedule of compliance,
the permittee shall submit either a report of progress or, in the case of specific actions being
required by identified dates, a written notice of compliance or noncompliance. In the latter
case, the notice shall include the cause of noncompliance, any remedial actions taken, and the
probability of meeting the next schedule requirements.

Part II
Page 1 of 14
PART H
STANDARD CONDITIONS FOR NPDES PERMITS
' 7.07 ,• : •1• s
The Director of the Division of Environmental Management
Means the Division of Environmental Management, Department of Environment, Health and
Natural Resources.
�u
Used herein means the North Carolina Environmental Management Commission.
The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33
USC 1251, et seq.
u � /��. u �s�•�, r
a. The "monthly average discharge" is defined as the total mass of all daily discharges
sampled and/or measured during a calendar month on which daily discharges are sampled
and measured, divided by the number of daily'discharges sampled and/or measured during
such month. It is therefore, an arithmetic mean found by adding the weights of the
pollutant found each day of the month and then dividing this sum by the number of days
the tests were reported. The limitation is identified as "Monthly Average" in Part I of the
permit
b. The "weekly average discharge" is defined as the total mass of all daily discharges sampled
and/or measured during the calendar week (Sunday - Saturday) on which daily discharges
are sampled and measured, divided by the number of daily discharges sampled and/or
measured during such week. It is, therefore, an arithmetic mean found by adding the
weights of pollutants found each day of the week and then dividing this sum by the
number of days the tests were reported. This limitation is identified as "Weekly Average"
in Part I of the permit
c. The "maximum daily discharge" is the total mass (weight) of a pollutant discharged during
a calendar day. If only one sample is taken during any calendar day the weight of pollutant
calculated from it is the "maximum daily discharge." This limitation is identified as "Daily
Maximum," in Part I of the permit
d. The "average annual discharge" is defined as the total mass of all daily discharges sampled
and/or measured during the calendar year on which daily discharges are sampled and
measured, divided by the number of daily discharges sampled and/or measured during such
year. It is, therefore, an arithmetic mean found by adding the weights of pollutants found
each day of the year and then dividing this sum by the number of days the tests were
reported This limitation is defined as "Annual Average" in Part I of the permit

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Page 2 of 14
a. The "average monthly concentration," other than for fecal coliform bacteria, is the sum of
the concentrations of all daily discharges sampled and/or measured during a calendar month
on which daily discharges are sampled and measured, divided by the number of daily
discharges sampled and/or measured during such month (arithmetic mean of the daily
concentration values). The daily concentration value is equal to the concentration of a
composite sample or in the case of grab samples is the arithmetic mean (weighted by flow
value) of all the samples collected during that calendar day. The average monthly count for
fecal coliform bacteria is the geometric mean of the counts for samples collected during a
calendar month This limitation is identified as "Monthly Average" under "Other Limits" in
Part I of the permit.
b. The "average weekly concentration," other than for fecal coliform bacteria, is the sum of the
concentrations of all daily discharges sampled and/or measured during a calendar week
(Sunday/Saturday) on which daily discharges are sampled and measured divided by the
number of daily discharges sampled and/or measured during such week (arithmetic mean of
the daily concentration values). The daily concentration value is equal to the concentration
of a composite sample or in the case of grab samples is the arithmetic mean (weighted by
flow value) of all the samples collected during that calendar day. The average weekly count
for fecal coliform bacteria is the geometric mean of the counts for samples collected during
a calendar week. This limitation is identified as "Weekly Average" under "Other Limits" in
Part I of the permit.
c. The "maximum daily concentration", is the concentration of a pollutant discharge during a
calendar day. If only one sample is taken during any calendar day the concentration of
pollutant calculated from it is the "Maximum Daily Concentration". It is identified as
"Daily Maximum" under "Other Limits" in Part I of the permit.
d. The "average annual concentration," other than for fecal coliform bacteria, is the sum of the
concentrations of all daily discharges sampled and/or measured during a calendar year on
which daily discharges are sampled and measured divided by the number of daily
discharges sampled and/or measured during such year (arithmetic mean of the daily
concentration values). The daily concentration value is equal to the concentration of a
composite sample or in the case of grab samples is the arithmetic mean (weighted by flow
value) of all the samples collected during that calendar day. The average yearly count for
fecal coliform bacteria is the geometric mean of the counts for samples collected during a
calendar year. This limitation is identified as "Annual Average" under "Other Limits" in
Part I of the permit.
e. The "daily average concentration" (for dissolved oxygen) is the minimum allowable amount
of dissolved oxygen required to be available in the effluent prior to discharge averaged
over a calendar day. If only one dissolved oxygen sample is taken over a calendar day, the
sample is considered to be the "daily average concentration" for the discharge. It is
identified as "daily average" in the text of Part L
f. The "quarterly average concentration" is the average of all samples taken over a calendar
quarter. It is identified as "Quarterly Average Limitation" in the text of Part I of the permit.
g. A calendar quarter is defined as one of the following distinct periods: January through
March, April through June, July through September, and October through Die
3l1L s® 1996

Part II
Page 3 of 14
a. Flow, (MGD): The flow limit expressed in this permit is the 24 hours average flow,
averaged monthly. It is determined as the arithmetic mean of the total daily flows recorded
during the calendar month.
b. An "instantaneous flow measurement" is a measure of flow taken at the time of sampling,
when both the sample and flow will be representative of the total discharge.
c. A "continuous flow measurement" is a measure of discharge flow from the facility which
occurs continually without interruption throughout the operating hours of the facility. Flow
shall be monitored continually except for the infrequent times when there may be no flow
or for infrequent maintenance activities on the flow device.
a. Composite Sample: A composite sample shall consist of:
(1) a series of grab samples collected at equal time intervals over a 24 hour period of
discharge and combined proportional to the rate of flow measured at the time of
individual sample collection, or
(2) a series of grab samples of equal volume collected over a 24 hour period with the time
intervals between samples determined by a preset number of gallons passing the
sampling point. Flow measurement between sample intervals shall be determined by
use of a flow recorder and totalizer, and the present gallon interval between sample
collection fixed at no greater than 1%24 of the expected total daily flow at the treatment
system, or
(3) a single, continuous sample collected over a 24 hour period proportional to the rate of
now.
In accordance with (1) above, the time interval between influent grab samples shall be no
greater than once per hour, and the time interval between effluent grab samples shall be no
greater than once per hour except at wastewater treatment systems having a detention time
of greater than 24 hours. In such cases, effluent grab samples may be collected at time
intervals evenly spaced over the 24 hour period which are equal in number of hours to the
detention time of the system in number of days. However, in no case may the time interval
between effluent grab samples be greater than six (6) hours nor the number of samples less
than four (4) during a 24 hour sampling period.
b. Grab Sample: Grab samples are individual samples *collected over a period of time not
exceeding 15 minutes; the grab sample can be taken manually. Grab samples must be
representative of the discharge or the receiving waters.
a Arithmetic Mean: The arithmetic mean of any set of values is the summation of the
individual values divided by the number of individual values.
b. Geometric Mean: The geometric mean of any set of values is the Nth root of the product of
the individual values where N is equal to the number of individual values. The geometric
mean is equivalent to the antilog of the arithmetic mean of the logarithms of the individual
values. For purposes of calculating the geometric mean, values of zero (0) shall be
considered to be one (1).

Part II
Page 4 of 14
c. Weighted by Flow Value: Weighted by flow value means the summation of each
concentration times its respective flow divided by the summation of the respective flows.
10. Calendar Day
A calendar day is defined as the period from midnight of one day until midnight of the next
day. However, for purposes of this permit, any consecutive 24-hour period that reasonably
represents the calendar day may be used for sampling.
A hazardous substance means any substance designated under 40 CFR Part 116 pursuant to
Section 311 of the :Clean Water Act
12. Toxic Pollutant
A toxic pollutant is any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act
The permittee must comply with all conditions of this permit Any permit noncompliance
constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit
termination, revocation and reissuance, or modification; or denial of a permit renewal
application.
a. The permittee shall comply with effluent standards or prohibitions established under
section 307(a) of the Clean Water Act for toxic pollutants and with standards for sewage
sludge use or disposal established under section 405(d) of the Clean Water Act within the
time provided in the regulations that establish these standards or prohibitions or standards
for sewage sludge use or disposal, even if the permit has not yet been modified to
incorporate the requirement
b. The Clean Water Act provides that any person who violates a permit condition is subject to
a civil penalty not to exceed $25,000 per day for each violation. Any person who
negligently violates any permit condition is subject to criminal penalties of $2,500 to
$25,000 per day of violation, or imprisonment for not more than 1 year, or both. Any
person who Imowingly violates permit conditions is subject to criminal penalties of $5,000
to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. Also,
any person who violates a permit condition may be assessed an administrative penalty not
to exceed $10,000 per violation with the maximum amount not to exceed $125,000. [Ref.-
Section
Ref:Section 309 of the Federal Act 33 U.S.C. 1319 and 40 CFR 122.41 (a)]
c. Under state law, a civil penalty of not more than ten thousand dollars ($10,000
violation may be assessed against any person who violates or fails to act in
the terms, conditions, or requirements of a permit [Ref: North 11113
§ 143-215.6A]
d. Any person may be assessed an administrative penalty by the AdmM§Iragliifd?vir 6fit—ing
section 301, 302, 306, 307, 308, 318, or 405 of the Act, or any permit condi tione��rr
limitation implementing any of such sections in a permit issued under se nal 2i
Act Administrative penalties for Class I violations are not to exceed $10,p6 violation,
with the maximum amount of any Class I penalty assessed not to exceed $25,000:

Part II
Page 5 of 14
Penalties for Class II violations are not to exceed $10,000 per day for each day during
which the violation continues, with the maximum amount of any Class II penalty not to
exceed $125,000.
The permittee shall take all reasonable steps -to minimize or prevent any discharge or sludge use
or disposal in violation of this permit which has a reasonable likelihood of adversely affecting
human health or the environment.
Except as provided in permit conditions on 'Bypassing" (Part II, C-4) and "Power Failures"
(Part II, C-7), nothing in this permit shall be construed to relieve the permittee from any
responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3,143-
215.6 or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the permittee is
responsible for consequential damages, such as fish kills, even though the responsibility for
effective compliance may be temporarily suspended
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve
the permittee from any responsibilities, liabilities, or penalties to which the permittee is or may -
be subject to under NCGS 143-215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321.
Furthermore, the permittee is responsible for consequential damages, such as fish kills, even
though the responsibility for effective compliance may be temporarily suspended.
The issuance of this permit does not convey any property rights in either real or personal
property, or any exclusive privileges, nor does it authorize any injury to private property or any
invasion of personal rights, nor any infringement of Federal, State or local laws or regulations.
This permit does not authorize or approve the construction of any onshore or offshore physical
structures or facilities or the undertaking of any work in any navigable waters.
The provisions of this permit are severable, and if any provision of this permit, or the
application of any provision of this permit to any circumstances, is held invalid, the application
of such provision to other circumstances, and the remainder of this permit, shall not be affected
thereby.
N. -i • ri• . • 1 .J11t •. 1 . 1
The permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any
information which the Permit Issuing Authority may request to determine whether cause exists
for modifying, revoking and reissuing, or terminating this permit or to determine compliance
with this permit. The permittee shall also furnish to the Permit Issuing Authority upon
request, copies of records required to be kept by this permit.

Part 11
Page 6 of 14
If the permittee wishes to continue an activity regulated by this permit after the expiration date
of this permit, the permittee must apply for and obtain a new permit.
The permittee is not authorized to discharge after the expiration date. In order to receive
automatic authorization to discharge beyond the expiration date, the permittee shall submit such
information, forms, and fees as are required by the agency authorized to issue permits no later
than 180 days prior to the expiration date. Any permittee that has not requested renewal at least
180 days prior to expiration, or any permittee that does not have a permit after the expiration
and has not requested renewal at least 180 days prior to expiration, will subject the permittee to
enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
All applications, reports, or information submitted to the Permit Issuing Authority shall be
signed and certified
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section,
a responsible corporate officer means: (a) a president, secretary, treasurer or vice
president of the corporation in charge of a principal business function, or any other
person who performs similar policy or decision making functions for the corporation,
or (b) the manager of one or more manufacturing production or operating facilities
employing more than 250 persons or having gross annual sales or expenditures
exceeding 25 million (in second quarter 1980 dollars), if authority to sign documents
has been assigned or delegated to the manager in accordance with corporate procedures.
(2) For a partnership or sole proprietorship: by a general partner or the proprietor,
respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal
executive officer or ranking elected official.
All reports required by the permit and other information requested by the Permit Issuing
Authority shall be signed by a person described above or by a duly authorized
representative of that person. A person is a duly authorized representative only if.
(1) The authorization is made in writing by a person described above; .
(2) The authorization specified either an individual or a position having responsibility for
the overall operation of the regulated facility or activity, such as the position of plant
manager, operator of a well or well field, superintendent, a position of equivalent
responsibility, or an individual or position having overall responsibility for
environmental matters for the company. (A duly authorized representative may thus be
either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Author -
.v
r jUL 0 1996
Vito

Part II
Page 7 of 14
c. Certification. Any person signing a document under paragraphs a. or b. of this section
shall make the following certification:
"I certify, under penalty of law, that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of
the person or persons who manage the system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for
knowing violations."
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a
request by the permittee for a permit modification, revocation and reissuance, or termination,
or a notification of planned changes or anticipated noncompliance does not stay any permit
condition.
The issuance of this permit does not prohibit the permit issuing authority from reopening and
modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed
by the laws, rules, and regulations contained in Title 40, Code of Federal Regulations, Parts
122 and 123; Title 15A of the North Carolina Administrative Code, Subchapter 2H .0100; and
North Carolina General Statute 143-215.1 et. al.
All previous National Pollutant Discharge Elimination System Permits issued to this facility,
whether for operation or discharge, are hereby revoked by issuance of this permit. [The
exclusive authority to operate this facility arises under this permit. The authority to operate the
facility under previously issued permits bearing this number is no longer effective. ] The
conditions, requirements, terms, and provisions of this permit authorizing discharge under the
National Pollutant Discharge Elimination System govern discharges from this facility.
XV -701-114--7-4
Pursuant to Chapter 90A-44 of North Carolina General Statutes, and upon classification of the
facility by the Certification Commission, the permittee shall employ a certified wastewater
treatment plant operator in responsible charge (ORC) of the wastewater treatment facilities.
Such operator must hold a certification of the grade equivalent to or greater than the
classification assigned to the wastewater treatment facilities by the Certification Commission.
The permittee must also employ a certified back-up operator of the appropriate type and any
grade to comply with the conditions of Title 15A, Chapter 8A.0202. The ORC of the facility
�musvvisit each Class I facility at least weekly and each Class II, III, and IV facility at least
daily, excluding weekends and holidays, and must properly manage and document daily
operation and maintenance of the facility and must comply with all other conditions of Title
15A, Chapter 8A .0202. Once the facility is classified, the permittee shall submit a letter to the
Certification Commission which designates the operator in responsible charge within thirty
days after the wastewater treatment facilities are 50% complete.

Part II
Page 8 of 14
The permittee shall at all times properly operate and maintain all facilities and systems of
treatment and control (and related appurtenances) which are installed or used by the permittee to
achieve compliance with the conditions of this permit. Proper operation and maintenance also
includes adequate laboratory controls and appropriate quality assurance procedures. This
provision requires the operation of back-up or auxiliary facilities or similar systems which are
installed by a permittee only when the operation is necessary to achieve compliance with the
conditions of the permit.
It shall not be a defense for a permittee in an enforcement action that it would have been
necessary to halt or reduce the permitted activity in order to maintain compliance with the
condition of this permit.
a. Definitions
(1) 'Bypass" means the known diversion of waste streams from any portion of a treatment
facility including the collection system, which is not a designed or established or
operating mode for the facility.
(2) "Severe property damage" means substantial physical damage to property, damage to
the treatment facilities which causes them to become inoperable, or substantial and
permanent loss of natural resources which can reasonably be expected to occur in the
absence of a bypass. Severe property damage does not mean economic loss caused by
delays in production.
b. Bypass not exceeding limitations.
The permittee may allow any bypass to occur which does not cause effluent limitations to
be exceeded, but only if it also is for essential maintenance to assure efficient operation.
These bypasses are not subject to the provisions of Paragraphs c. and d. of this section.
c. Notice
(1) Anticipated bypass. If the permittee knows in advance of the need for a bypass, it
shall submit prior notice, if possible at least ten days before the date of the bypass;
including an evaluation of the anticipated quality and affect of the bypass.
Wass
(2) Unanticipated bypass. The permittee shall submit notice of an unanti
required in Part II, E. 6. of this permit. (24 hour notice). u` 196
d. Prohibition of Bypass
(1) Bypass is prohibited and the Permit Issuing Authority may take enforce%%*viii h
against a permittee for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property
damage,
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary
treatment facilities, retention of untreated wastes or maintenance during normal

Part lI
Page 9 of 14
periods of equipment downtime. This condition is not satisfied if adequate backup
equipment should have been installed in the exercise of reasonable engineering
judgment to prevent a bypass which occurred during normal periods of equipment
downtime or preventive maintenance; and
(C) The permittee submitted notices as required under Paragraph c. of this section.
(2) The Permit Issuing Authority may approve an anticipated bypass, after considering its
adverse affects, if the Permit Issuing Authority determines that it will meet the three
conditions listed above in Paragraph d. (1) of this section.
5. Upsets
a. Definition.
"Upset " means an exceptional incident in which there is unintentional and temporary
noncompliance with technology based permit effluent limitations because of factors
beyond the reasonable control of the permittee. An upset does not include noncompliance
to the extent caused by operational error, improperly designed treatment facilities,
inadequate treatment facilities, lack of preventive maintenance, or careless or improper
operation.
b. Effect of an upset.
An upset constitutes an affirmative defense to an action brought for noncompliance with
such technology based permit effluent limitations if the requirements of paragraph c. of this
condition are met. No determination made during administrative review of claims that
noncompliance was caused by upset, and before an action for noncompliance, is final
administrative action subject to judicial review.
c. Conditions necessary for a demonstration of upset.
A permittee who wishes to establish the affirmative defense of upset shall demonstrate,
through properly signed, contemporaneous operating logs, or other relevant evidence that:
(1) An upset occurred and that the permittee can identify the cause(s) of the upset;
(2) The permittee facility was at the time being Properly operated; and
(3) The permittee submitted notice of the upset as required in Part II, E. 6. (b) (B) of this
permit
(4) The permittee complied with any remedial measures required under Part H, B. 2. of this
Permit
d. Burden of proof.
In any enforcement proceeding the permittee seeking to establish the occurrence of an upset
has the burden of proof.
MWIT40", ,
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or
control of wastewaters shall be utilized/disposed of in accordance with NCGS 143-215.1 and in
a manner such as to prevent any pollutant from such materials from entering waters of the State
or navigable waters of the United States. The permittee shall comply with all existing federal

Part 11
Page 10 of 14
regulations governing the disposal of sewage sludge. Upon promulgation of 40 CFR Part 503,
any permit issued by the Permit Issuing Authority for the utilization/disposal of sludge may be
reopened and modified, or revoked and reissued, to incorporate applicable requirements at 40
CFR Part 503. The permittee shall comply with applicable 40 CFR Part 503 Standards for the
Use and Disposal of Sewage Sludge (when promulgated) within the time provided in the
regulation, even if the permit is not modified to incorporate the requirement. The permittee
shall notify the Permit Issuing Authority of any significant change in its sludge use or disposal
practices.
The permittee is responsible for maintaining adequate safeguards as required by DEM
Regulation, Title 15A, North Carolina Administrative Code, Subchapter 2H, .0124 Reliability,
to prevent the discharge of untreated or inadequately treated wastes during electrical power
failures either by means of alternate power sources, standby generators or retention of
inadequately treated effluent.
- •)•- � 1 Y. • . �� •
Samples collected and measurements taken, as required herein, shall be characteristic of the
volume and nature of the permitted discharge. Samples collected at a frequency less than daily
shall be taken on a day and time that is characteristic of the discharge over the entire period
which the sample represents. All samples shall be taken at the monitoring points specified in
this permit and, unless otherwise specified, before the effluent joins or is diluted by any other
wastestream, body of water, or substance. Monitoring points shall not be changed without
notification to and the approval of the Permit Issuing Authority.
Monitoring results obtained during the previous month(s) shall be summarized for each month
and reported on a monthly Discharge Monitoring Report (DMR) Form (DEM No. MR 1, 1.1, 2,
3) or alternative forms approved by the Director, DEM, postmarked no later than the 30th day
following the completed reporting period.
The first DMR is due on the last day of the month following the issuance of the permit or in the
case of a new facility, on the last day of the month following the commencement of discharge.
Duplicate signed copies of these, and all other reports required herein, shall be submitted to the
following address:
Division of Environmental Management
Water Quality Section
ATTENTION: Central Files
Post Office Box 29535
Raleigh, North Carolina 27626-0535
Appropriate flow measurement devices and methods consistent with accepted -scientific
practices shall be selected and used to ensure the accuracy and reliability of measurements of
the volume of monitored discharges. The devices shall be installed, calibrated and maintained
to ensure that the accuracy of the measurements are consistent with the accepted capability of
that type of device. Devices selected shall be capable of measuring flows with a maximum
deviation of less than + 10% from the true discharge rates throughout the range of expected

Part II
Page 11 of 14
discharge volumes. Once -through condenser cooling water flow which is monitored by pump
logs, or pump hour meters as specified in Part I of this permit and based on the manufacturer's
pump curves shall not be subject to this requirement.
Test procedures for the analysis of pollutants shall conform to the EMC regulations published
pursuant to NCGS 143-215.63 et. seq, the Water and Air Quality Reporting Acts, and to
regulations published pursuant to Section 304(8), 33 USC 1314, of the Federal Water
Pollution Control Act, as Amended, and Regulation 40 CFR 136; or in the case of sludge use or
disposal, approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless
other test procedures have been specified in this permit.
To meet the intent of the monitoring required by this permit, all test procedures must produce
minimum detection and reporting levels that are below the permit discharge requirements and
all data generated must be reported down to the minimum detection or lower reporting level of
the procedure. If no approved methods are determined capable of achieving minimum
detection and reporting levels below permit discharge requirements, then the most sensitive
(method with the lowest possible detection and reporting level) approved method must be used
The Clean Water Act provides that any person who falsifies, tampers with, or knowingly
renders inaccurate, any monitoring device or method required to be maintained under this
permit shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or
by imprisonment for not more than two years per violation, or by both. If a conviction of a
person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not
more than 4 years, or both.
Except for records of monitoring information required by this permit related to the perminee's
sewage sludge use and disposal activities, which shall be retained for a period of at least five
years (or longer as required by 40 CFR 503), the permittee shall retain records of all
monitoring information, including all calibration and maintenance records and all original strip
chart recordings for continuous monitoring instrumentation, copies of all reports required by
this permit, for a period of at least 3 years from the date of the sample, measurement, report
or application. This period may be extended by request of the Director at any time.
For each measurement or sample taken pursuant to the requirements of this permit, the
permittee shall record the following information:
a. The date, exact place, and time of sampling or measurements,
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used, and
f. The results of such analyses.

Part H
Page 12 of 14
8. Inspection and Ena
The permittee shall allow the Director, or an authorized representative (including an authorized
contractor acting as a representative of the Director), upon the presentation of credentials and
other documents as may be required by law, to;
a. Enter upon the permittee's premises where a regulated facility or activity is located or
conducted, or where records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the
conditions of this permit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control
equipment), practices, or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or
as otherwise authorized by the Clean Water Act, any substances or parameters at any
location.
SECTION E. REPORTING R1PQJ UREM,ENTS
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this
permit. The discharge of any pollutant identified in this permit more frequently than or at a
level in excess of that authorized shall constitute a violation of the permit.
2. Planned Changes
The permittee shall give notice to the Director as soon as possible of any planned physical
alterations or additions to the permitted facility. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for determining
whether a facility is a new source in 40 CFR Part 122.29 (b); or
b. The alteration or addition could significantly change the nature or increase the quantity of
pollutants discharged This notification applies to pollutants which are subject neither to
effluent limitations in the permit, nor to notification requirements under 40 CFR Part 122.42
(a) (1).
c. The alteration or addition results in a significant change in the permittee's sludge use or
disposal practices, and such alternation, addition or change may justify the application of
permit conditions that are different from or absent in the existing permit, including
notification of additional use or disposal sites not reported during the permit application
process or not reported pursuant to an approved land application plan.
3. Anddp ated Noncompliance
The permittee shall give advance notice to the Director of any planned changes in the permitted
facility or activity which may result in noncompliance with permit requirements.
b
°�L s0 1996

Part II
Page 13 of 14
This permit is not transferable to any person except after notice to the Director. The Director
may require modification or revocation and reissuance of the permittee and incorporate such
other requirements as may be necessary under the Clean Water Act.
Monitoring results shall be reported at the intervals specified elsewhere in this permit.
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.
D. 2 of this permit) or forms provided by the Director for reporting results of monitoring of
sludge use or disposal practices.
b. If the permittee monitors any pollutant more frequently than required by the permit, using
test procedures specified in Part H, D. 4. of this permit or in the case of sludge use or
disposal, approved under 40 CFR 503, or as specified in this permit, the results of this
monitoring shall be included in the calculation and reporting of the data submitted in the
DMR
c. Calculations for all limitations which require averaging of measurements shall utilize an
arithmetic mean unless otherwise specified by the Director in the permit.
-! #A . V rem ; ,#II I
a. The permittee shall report to the central office or the appropriate regional office any
noncompliance which may endanger health or the environment. Any information shall be
provided orally within 24 hours from the time the permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the
permittee becomes aware of the circumstances. The written submission shall contain a
description of the noncompliance, and its cause; the period of noncompliance, including
exact dates and times, and if the noncompliance has not been corrected, the anticipated time
it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent
reoccurrence of the noncompliance.
b. The following shall be included as information which must be reported within 24 hours
under this paragraph:
(1) Any unanticipated bypass which exceeds any effluent limitation in the permit.
(2) Any upset which exceeds any effluent limitation in the permit.
(3) Violation of a maximum daily discharge limitation for any of the pollutants listed by the
Director in the permit to be reported within 24 hours.
c. The Director may waive the written report on a case-by-case basis for reports under
paragraph b. above of this condition if the oral report has been received within 24 hours.
The permittee shall report all instances of noncompliance not reported under Part H. E. 5 and 6.
of this permit at the time monitoring reports are submitted. The reports shall contain the
information listed in Part II. E. 6. of this permit.

Part II
Page 14 of 14
Where the permittee becomes aware that it failed to submit any relevant facts in a permit
application, or submitted incorrect information in a permit application or in any report to the
Director, it shall promptly submit such facts or information.
The permittee shall report by telephone to either the central office or the appropriate regional
office of the Division as soon as possible, but in no case more than 24 hours or on the next
working day following the occurrence or first knowledge of the occurrence of any of the
following:
a. Any occurrence at the water pollution control facility which results in the discharge of
significant amounts of wastes which are abnormal in quantity or characteristic, such as the
dumping of the contents of a sludge digester, the known passage of a slug of hazardous
substance through the facility; or any other unusual circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility
incapable of adequate wastewater treatment such as mechanical or electrical failures of
pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass
directly to receiving waters without treatment of all or any portion of the influent to such
station or facility.
Persons reporting such occurrences by telephone shall also file a written report in letter form
within 5 days following first knowledge of the occurrence.
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308 of
the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms shall be
available for public inspection at the offices of the Division of Environmental Management. As
required by the Act, effluent data shall not be considered confidential. Knowingly making any
false statement on any such report may result in the imposition of criminal penalties as provided
for in NCGS 143-215.1(b)(2) or in Section 309 of the Federal Act.
The Clean Water Act provides that any person who knowingly makes any false statement,
representation, or certification in any record or other document submitted or required to be
maintained under this permit, including monitoring reports or reports of compliance or
noncompliance shall, upon conviction, be punished by a fine of not more than $10,000 per
violation, or by imprisonment for not more than two years per violation, or by
both.
"�M AUL �4 1996.

PART III
OTHER REQUIREMENTS
No construction of wastewater treatment facilities or additions to add to the plant's treatment
capacity or to change the type of process utilized at the treatment plant shall be begun until
Final Plans and Specifications have been submitted to the Division of Environmental
Management and written approval and Authorization to Construct has been issued
11=0 . - \) • 1 . 1
The permittee shall, upon written notice from the Director of the Division of Environmental
Management, conduct groundwater monitoring as may be required to determine the
compliance of this NPDES permitted facility with the current groundwater standards.
The permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to
believe:
a.That any activity has occurred or will occur which would result in the discharge, on a
routine or frequent basis, of any toxic pollutant which is not limited in the permit, if that
discharge will exceed the highest of the following "notification levels";
(1) One hundred micrograms per liter (100 ug/l);
(2)Two hundred micrograms per liter (200 ug/1) for acrolein and acrylonitrile; five
hundred micrograms per liter (500 ug/1) for 2.4-dinitrophenol and for 2-methyl-4.6-
dinitrophenol; and one milligram per liter (1 mg/1) for antimony;
(3) Five (5) times the maximum concentration value reported for that pollutant in the
permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a
non -routine or infrequent basis, of a toxic pollutant which is not limited in the permit, if
that discharge will exceed the highest of the following "notification levels";
(1) Five hundred micrograms per liter (500 ug/1);
(2) One milligram per liter (1 mg/1) for antimony;
(3) Ten (10) times the maximum concentration value reported for that pollutant in the
permit application.
I If
M=1 17-701 is Colo M11 -TOM UB = UrUT.1 I OJIM
The permittee shall continually evaluate all wastewater disposal alternatives and pursue the
most environmentally sound alternative of the reasonably cost effective alternatives. If the
facility is in substantial non-compliance with the terms and conditions of the NPDES permit
or governing rules, regulations or laws, the permittee shall submit a report in such form and
detail as required by the Division evaluating these alternatives and a plan of action within
sixty (60) days of notification by the Division.

Part M Permit No. NC0003573
E. This permit shall be modified, or revoked and reissued to incorporate toxicity limitations and
monitoring requirements in the event toxicity testing or other studies conducted on the effluent or
receiving stream indicate that detrimental effects may be expected in the receiving stream as a result
of this discharge.
F. The permittee shall not use any biocides except those approved in conjunction with the permit
application. The permittee shall notify the Director in writing not later than ninety (90) days prior
to instituting use of any additional biocide used in cooling systems which may be toxic to aquatic
life other than those previously reported to the Division of Environmental Management. Such
notification shall include completion of Biocide Worksheet Form 101 and a map locating the
discharge point and receiving stream.
G. CHRONIC TOXICITY PASS/FA11L PERMIT LRvff (QRTRLY)
The effluent discharge shall at no time exhibit chronic toxicity using test procedures outlined in:
1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic
Bioassay Procedure - Revised *September 1989) or subsequent versions.
The effluent concentration at which there may be no observable inhibition of reproduction or
significant mortality is 3.3% (defined as treatment two in the North Carolina procedure document).
The permit holder shall perform quarterly monitoring using this procedure to establish compliance
with the permit condition. The first test will be performed after thirty days from the effective date
of this permit during the months of February, May, August and November. Effluent sampling for
this testing shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR -1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DEM Form AT -1 (original) is to be sent to the following addres -
Attention:
Environmental Sciences Branch•
North Carolina Division of t �p 1996
Environmental Management JV
4401 Reedy Creek Road
Raleigh, N.C. 27607�,v��
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this
monthly test requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Environmental Management indicate potential impacts to the receiving stream, this
permit may be re -opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting(within 30 days of initial monitoring event). Failure to submit

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

PART IV
ANNUAL ADMINTISTERING AND COMPLIANCE MONITORING FEE REQUIREMENTS
A. The permittee must pay the annual administering and compliance monitoring fee within 30
(thirty) days after being billed by the Division. Failure to pay the fee in a timely manner in
accordance with 15A NCAC 2H .0105(b)(4) may cause this Division to initiate action to
revoke the permit.
.JUL 80 1996
TRAL FILES '
2000 copies of this poUic doement were printed at a
cost of #554.00 or ;.28 each.

DuPont Automotive
P.O. Drawer
Fayetteville, NC 28302
4W
DuPont Automotive
Q0
M
June 5, 1996
VIA COURIER
Mr. Gregory Nizich
NC DEHNR - DEM
Water Quality Section - Permits Unit
512 N. Salisbury St. - Office 925
Raleigh, NC 27626
RE: NPDES Permit No. NC0003573
Comments to Draft Permit
Dear Mr. Nizich,
The following are the requested changes to the Draft of the NPDES Permit dated April 17, 1996.
Each requested modification is addressed as a separate section.
SUPPLEMENT TO PERMIT COVER SHEET
In Item 1, "neutralizaion" should be "neutralization". Also, the facility description should be
changed to the following, as was described in the NPDES application:
" ... equalization, a nutrient feed system, two aeration tanks in series, clarification,..."
In Item 1, we request that the description for Outfall 002 be changed to:
" boiler blowdown from DuPont oil -fired boilers, boiler blowdown and cooling water
tower blowdown from BCH Energy Project, once through cooling water, treated
wastewater effluent from Outfall 001, Nafion® low biodegradable process wastewater
from Outfall 003, and filter backwash discharge (002)".
In Item 1, we request that the designation of Outfall 004 be changed to 0 t
wording for Outfall 003 be changed to:
" Nafion® low biodegradable process wastewater (003)" a 0 1996
(For details of this request, see the two separate sections titled "Outfall 004 - Outf411 Mt ier
Designation" and "Outfall 003 [Previously Outfall 004] Narrative Modification"")
E. I. du Pont de Nemours and Company ® Printed on Recycled Paper
FF -9522 Rev 5/93

Mr. Gregory Nizich Page 2
DEHNR-DEM
June 5, 1996
OUTFALL 001- NARRATIVE MODIFICATION
The narrative given for Outfall 001 in both the current NPDES Permit and the draft of the
NPDES Permit renewal does not accurately describe the discharge. The Butacite® process
wastewater is not referenced in the narrative, even though that wastewater constitutes more than
89% of the total flow to the Wastewater Treatment Plant (WWTP). Also, the WWTP receives
several additional process wastewater streams which were not included.
We therefore request that the narrative of Outfall 001 be modified to read:
" the Permittee is authorized to discharge from outfall(s) serial number 001 (Sanitary
Wastewater, Demineralizer Regeneration Wastewater, Process Wastewater from
Butacite® Area, Process Wastewater from Nafion® Area, Process Wastewater from
Dymetrol® Company, and BCH Energy Project's Cooling Tower Clean-out Drain)."
OUTFALL 001- BODS AND TSS MONTHLY AVERAGE AND DAILY MAXIMUM
The proposed Outfall 001 Monthly Average and Daily Maximum limits for both BODS and TSS
have been decreased by an average of 9.7%. It is assumed that the basis for these new limits was
the long-term average flow rate for Outfall 001 of 0.853 MGD as reported in the NPDES Permit
application. This long-term flow rate is not representative of the recent wastewater flows
through our Wastewater Treatment Plant (WWTP), therefore a higher flow rate for Outfall 001
should be used to establish the BODS and TSS limits.
The long-term Outfall 001 flow rate of 0.853 MGD was for the period from 1/92 through 6/95.
However, Figure 1 shows that the Outfall 001 monthly average flow rate from 1/92 through 4/96
has been increasing, due to increases in our production rates during this period. Table 1 gives the
Daily Average and Daily Maximum Flows for Outfall 001, as well as a summary of the long-
term average for both the application period of 1/92 through 6/95, and the mo
period of 5/94 through 4/96. The long-term average flow rate for the period of Mo
was 0.929 MGD. 1.
JUL 30 1996
Additionally, in your file memorandum dated November 23, 1992, which explained the basis for
the permit limitations for BODS and TSS established for the current NPDES P(GT"4 F&P
that per EPA guidance, the limits are determined by using the highest monthly average- flow. ,
during the last 12 months. For the period from 5/95 through 4/96, the highest monthly average
flow for Outfall 001 was 1.006 MGD (see Table 2).

Mr. Gregory Nizich
DEHNR-DEM
June 5, 1996
Page 3
Using the 1.006 MGD highest monthly average flow for Outfall 001, and the concentration limits
established by 40 CFR 414.41, the Monthly Average and Daily Maximum limits should be as
follows:
Table 2 and Table 3 show the sorted monthly average values for Outfall 001 for both the past 12
months and the past 24 months, respectively. Table 2 and Table 3 are represented graphically in
Figure 2 and Figure 3 respectively. As these tables and graphs indicate, the 1992-1995 long-term
average daily flow rate for Outfall 001 of 0.853 MGD was exceeded 67% of the months during
the past 12 months, and 83% of the months during the past 24 months. Therefore, using the
1992-1995 long-term average flow rate as the basis for the BODS and TSS mass discharge limits
for the five year life of the permit could result in the an unacceptable number of noncompliances.
Also, it was recently announced that the site's Butacite® manufacturing area will increase its
capacity by 15% within the next three years. This will result in an increase of 121,000 gal/day of
the Butacite® process wastewater flow to the WWTP. Since 98% of the measured COD in the
WWTP influent comes from Butacite®, this 15% capacity increase will result in a corresponding
15% increase of the organic loading to the WWTP. It is expected that this increased loading may
result in some additional discharge of BODS and TSS in the treated effluent of Outfall 001.
Updated wastewater balance sheets are attached which reflects the long-term average flow of
Outfall 001 from May 1994 through April 1996, and includes the additional 121,000 gal/day
from the above capacity increase of the Butacite® manufacturing process. The average OCPSF
process wastewater flow from this water balance sheet is 0.948 MGD going to t,
Therefore, we request that the Outfall 001 limits for BODS and TSS be det `' med by using
either the 1.006 MGD highest monthly average flow during the past twelve months,J 4Lb9QlsI*
the long-term average flow of 0.948 MGD from the attached water balance sheets.
CENTRAL FILES `±`
Subpart D (§414.41) BPT Effluent Limitations
Monthly Average
Concentration
(m /L)
Monthly Average
Mass Discharge
(lb/da)
Daily Maximum
Concentration
(m )
Daily Maximum
Mass Discharge
(lb/day)
BODS
24
201.3
64
536.9
TSS
40
335.6
130
1090.7
Table 2 and Table 3 show the sorted monthly average values for Outfall 001 for both the past 12
months and the past 24 months, respectively. Table 2 and Table 3 are represented graphically in
Figure 2 and Figure 3 respectively. As these tables and graphs indicate, the 1992-1995 long-term
average daily flow rate for Outfall 001 of 0.853 MGD was exceeded 67% of the months during
the past 12 months, and 83% of the months during the past 24 months. Therefore, using the
1992-1995 long-term average flow rate as the basis for the BODS and TSS mass discharge limits
for the five year life of the permit could result in the an unacceptable number of noncompliances.
Also, it was recently announced that the site's Butacite® manufacturing area will increase its
capacity by 15% within the next three years. This will result in an increase of 121,000 gal/day of
the Butacite® process wastewater flow to the WWTP. Since 98% of the measured COD in the
WWTP influent comes from Butacite®, this 15% capacity increase will result in a corresponding
15% increase of the organic loading to the WWTP. It is expected that this increased loading may
result in some additional discharge of BODS and TSS in the treated effluent of Outfall 001.
Updated wastewater balance sheets are attached which reflects the long-term average flow of
Outfall 001 from May 1994 through April 1996, and includes the additional 121,000 gal/day
from the above capacity increase of the Butacite® manufacturing process. The average OCPSF
process wastewater flow from this water balance sheet is 0.948 MGD going to t,
Therefore, we request that the Outfall 001 limits for BODS and TSS be det `' med by using
either the 1.006 MGD highest monthly average flow during the past twelve months,J 4Lb9QlsI*
the long-term average flow of 0.948 MGD from the attached water balance sheets.
CENTRAL FILES `±`

Mr. Gregory Nizich Page 4
DEHNR-DEM
June 5, 1996
OUTFALL 001- OCPSF PRIORITY POLLUTANT LIMITS
The Outfall 001 OCPSF Priority Pollutants are from the table contained in 40 CFR 414 Subpart I
(§414.91), which lists the parameters in terms of concentration limits to be applied to the process
wastewater flow.
It appears that the flow used to determine the mass (lb/day) limit of the OCPSF parameters was
0.832 MGD, although the source of that flow value is not clear.
Therefore, we request that the Outfall 001 OCPSF Priority Pollutants mass limit be determined
either by using the past twelve months highest Outfall 001 Monthly Average flow of 1.006
MGD, or by using the average OCPSF process wastewater long-term flow of 0.948 MGD from
the attached water balance sheets.
OUTFALL 002 - NARRATIVE MODIFICATION
The narrative given for Outfall 002 in the draft of the NPDES Permit renewal does not accurately
describe the discharge. This outfall receives the treated wastewater effluent from the site's
Wastewater Treatment Plant (Outfall 001) and the new direct discharge of the Nafion® low
biodegradable wastewater (Outfall 003), however these streams are not included in the draft
narrative. Also, the wording of the boiler blowdowns could be misinterpreted. Finally, there is
no mention of the blowdown from the BCH Energy Project's cooling water tower.
Therefore, we request that the narrative of Outfall 002 be modified to read:
" the Permittee is authorized to discharge from outfall(s) serial number 002 (boiler
blowdown from DuPont oil -fired boilers, boiler blowdown and cooling water tower
blowdown from BCH Energy Project, once through cooling water, treated wastewater
effluent from Outfall 001, Nafion® low biodegradable process wastewater from
Outfall 003, and filter backwash discharge)."
OUTFALL 002 - FLUORIDE DAILY MAXIMUM LIMIT
A project has recently been approved which will result in a 250% increase of the Nafion® HFPO s
process' capacity. This expansion is needed to meet the growing market i
fluorochemicals produced in the Nafion® manufacturing area.
JUL 34 1996'
Gl RTPAt mis

Mr. Gregory Nizich
DEHNR-DEM
June 5, 1996
Page 5
The fluoride discharge measured at Outfall 002 comes entirely from the Nafion® manufacturing
area. With the 250% expansion of the HFPO process, and the subsequent fluorocarbon materials
produced from HFPO, there will be a corresponding increase of fluorides at Outfall 002. At this
time, there are no economically feasible alternatives of disposal, reclamation, or recycling of the
fluoride containing process wastewaters. As part of our continual waste minimization effort, we
will seek out means of reducing these fluoride containing wastewater streams, however none are
currently foreseen.
Figure 4 shows the increasing amount of fluoride discharge at Outfall 001 from 1992 to 1996,
expressed as a Monthly Average. Figure 5 gives the daily discharges of fluoride at Outfall 001
from 1993 to 1996.
Figures 6 and 7 are scaled up versions of Figures 4 and 5, and represent the respective Monthly
Average and Daily Maximum fluoride discharges at Outfall 001 anticipated after the start-up of
the expanded HFPO process. As can be seen from these two graphs, while the average fluoride
discharge remains below the current permitted Daily Maximum limit of 5,000 lb/day fluoride on
a monthly basis (Figure 6), the variability of the individual results on a daily basis (Figure 7)
would potentially cause frequent noncompliances of the current Daily Maximum limit.
Therefore, due to the anticipated increase of fluoride discharge, we request that the Outfall 002
Fluoride Daily Maximum limit be changed to 7,676 lb/day, which is approximately equal to this
site's long-term NPDES Permit Daily Maximum limit of 7,663 lb/day, which was in effect until
the issuance of the current permit in 1993.
The requested Daily Maximum limit is the numerical water quality standards, per North Carolina
Title 15A Rule .0211(3)(1)(vii), for fluoride (1.8 mg/L) at the 7Q10 flow (791 cfs) of the Cape
Fear River, as determined by:
(791 ft3/sec)(86,400 sec/day)(62.41b/ft3)(1.8 mg/L) = 7,676 lb/day Fluoride
(1,000,000 mg/L)
OUTFALL 004 - OUTFALL NUMBER DESIGNATION
Per DuPont - Fayetteville Works request, a new outfall was established to allow fo�qs
t
discharge of low biodegradable Nafion® process wastewaters. This direct d�scharg�
designated as Outfall 004 in the draft NPDES Permit. '
JUL 30 19961
curwrpA . FILES

Mr. Gregory Nizich
DEHNR-DEM
June 5, 1996
Page 6
This site also has an NPDES Stormwater Discharge Permit issued by NC-DEHNR. In that
stormwater permit, an Outfall 004 was established to monitor the stormwater run-off from an
area between the Nafion® manufacturing area and the Cape Fear River.
To eliminate the obvious confusion which would result from two different outfalls with the same
designation, we request that the direct discharged Nafion® process wastewater outfall be re-
designated as Outfall 003.
This site did have a permitted Outfall 003 until the issuance of the 1993 NPDES Permit, at which
time it was eliminated. However, given the three years since any monitoring or reporting of the
original Outfall 003, we do not believe giving this designation to the Nafion® process
wastewater outfall would result in any confusion for either our site nor DEHNR.
Note: For the remainder of this letter, the subject outfall will be referred to as Outfall 003.
OUTFALL 003 (previously OUTFALL 004) - NARRATIVE MODIFICATION
The draft permit's narrative for Outfall 003 states that the outfall is authorized to "discharge...
Nafion® scrubber and Nafion® waste gas scrubber wastewater". The basis for this description
comes from the physical testing and aquatic toxicity testing results submitted to DEHNR to show
that these two streams could be direct discharged to the Cape Fear River without adverse acute or
chronic aquatic toxicity and with less than detectable BODS value in the direct discharge.
However, this description is too restrictive and does not allow for the site to identify the other
low biodegradable Nafion® process wastewater streams and direct discharge
thereby optimizing the effectiveness of the site's Wastewater Treatment Plant.
We therefore request that the narrative for Outfall 003 be modified to read: JUL 80 1996
"the Permittee is authorized to discharge from outfall(s) serial number 003 (Nafion® low L FILES
biodegradable process wastewaters)." CENT
pox.:>..:. �, , •,.>�.........
To allow this site and DEHNR to adequately monitor the Nafion® process wastewater -streams of
Outfall 003 and confirm compliance with the wording of the requested narrative, we are further
requesting that a voluntary BODS monitoring requirement and limitation be added for Outfall
003, thereby guaranteeing that Nafion® biodegradable wastewaters which should be treated in
the site's WWTP will not be discharged via Outfall 003 (see next section).

Mr. Gregory Nizich
DEHNR-DEM
June 5, 1996
OUTFALL 003 (previously OUTFALL 004) - DAILY AVERAGE FLOW LIMIT
Page 7
The draft NPDES Permit's Outfall 003 discharge limitation is a Monthly Average flow limit of
0.011 MGD. We feel that this limitation is too restrictive, and does not adequately ensure that
wastewaters which should be treated in the site's WWTP would not be direct discharged via
Outfall 003.
Therefore, we request that the Outfall 003 Monthly Average flow limitation be set at the
Nafion® long-term average flow of 36,000 gal/day. It is the intention of this site to identify other
Nafion® low biodegradable wastewater streams which could be direct discharged, and through a
multi -phased project, route those streams into the direct discharge of Outfall 003. It is our belief
that almost all of the Nafion® process wastewater streams are virtually void of any BODS value,
and hence could be direct discharged, thereby reducing the hydraulic loading of the WWTP.
We wish to have the flexibility in the NPDES Permit to allow for the direct discharge of those
streams, without being restricted by the proposed average flow of the Nafion® HFPO Process
Scrubber and the Nafion® Waste Gas Scrubber (i.e. 11,000 gal/day). The Nafion® process
wastewater long-term average flow is 36,000 gal/day, all of which could potentially be direct
discharged, so if a Daily Average flow limit must be applied to Outfall 003, we request that it be
the full 0.036 MGD.
To ensure that the Outfall 003 discharge meets the requirement of the requested narrative
modification (see previous section), we request that a voluntary BODS limit be added to the
monitoring and discharge limitation requirement of Outfall 003, based on Best Professional
Judgment (BPJ) and using the BODS limitation of Subpart D of 40 CFR 414, which is the
applicable OCPSF effluent guideline used at the WWTP effluent of Outfall 001.
The BODS limits of Subpart D are a Monthly Average limit of 24 mg/L and a Daily Maximum
limit of 64 mg/L. We therefore request that these BODS concentration limits be established for
Outfall 003, with a monitoring frequency of "monthly". By using the BODS cor c�ritratfon1imits
in lieu of mass limits, the direct discharged Nafion® wastewater will be guaranteed to be "low 3
biodegradable" water, regardless of the flow quantity. JUL 30 1996
Combining the requested limitations, it is clear that the Outfall 003 discharge would be permitted
d�ES
to be a very minor discharge. At the requested maximum flow rate of 36,000 gag Ta t
requested Monthly Average limit of 24 mg/L BODS, the maximum Outfall 003 average mass .•
discharge would be 7.2 lb/day BODS.

Mr. Gregory Nizich
DEHNR-DEM
June 5, 1996
Page 8
OUTFALL 003 (previously OUTFALL 004) - OCPSF PRIORITY POLLUTANT LIMITS
Due to the uncertainty of the timing or quantity of the eventual flow to Outfall 003, the basis for
the mass discharge limits of the 40 CFR 414 Subpart J OCPSF priority pollutants may be in
question. The limits of the OCPSF parameters in the draft NPDES Permit were based on an
Outfall 003 flow of 0.011 MGD.
We request that the Outfall 003 OCPSF parameters mass discharge limit (lb/day) be changed to a
concentration limit (µg/L) using the BAT effluent limitations given in the table of §414.101 in
Subpart J. In this manner, the OCPSF parameters will be limited by the concentration listed in
§414.101 regardless of the flow of Outfall 003, and would also be limited by the requested
Outfall 003 maximum Monthly Average flow of 0.036 MGD.
6Y1 k,I 1►,I /II .7.1
We feel that with the requested modifications, the renewed DuPont -Fayetteville Works NPDES
Permit will be a document which will protect the environmental health of the Cape Fear River,
and at the same time will allow this site to grow and meet our business needs, and thereby
enhance the future employment opportunities for Cumberland, Bladen, and Robeson Counties.
Should you have any questions or need further clarification or information on any of the above
items, or wish to arrange a meeting to discuss any of these requests, please feel free to contact me
at [phone].
Michael E. Johnson
Environmental Coordinator
Enclosures
JUL 30 1996

MEMO
DATE:
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