NC0003760_Permit (Modification)_20100730

NPDES DOCIMENT ! CANNIN`: COVER SHEET
NPDES Permit:
NC0003760
DuPont Kinston facility
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
(Permit ModificatioFbd'i
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Technical Correction
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
July 30, 2010
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ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
•
July 30, 2010
Harold Thomas
Plant Manager
E. I. DuPont. Kinston Plant
P. O. Box 800
Kinston, NC 26502-0800
Subject: Issuance of Permit Modification
NPDES Permit NC0003760
E. I. DuPont Kinston Plant
Lenoir County
Dear Mr. Thomas:
Division personnel have reviewed and approved your request to add a 36 month Acrolein
compliance condition to your NPDES permit. Accordingly, we are forwarding the attached modified NPDES
permit pages. These modified pages should be inserted into your permit and the old ones discarded. This
modified 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).
Summary of Changes in Modified Permit from Existing Permit
1) Acrolein Water Quality Standard mass -based limits with monthly monitoring were added to effluent
page A. (1.). The accompanying footnote defined the 36 month compliance date and referred to
A. (21.) for other requirements.
2) Acrolein Water Quality Standard mass -based limits and monitoring were removed from effluent
page A. (2.).
3) A special condition A. (21.) Acrolein Compliance Schedule was added. All comp/iance dates were
defined.
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.
Page 1 of 2
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: httpi ! h2o.state.nc.u's /
An Equal Opportunity 1 Affirmative Action Employer
N(gthCarolina
X'aturaUij

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 permits that may be required.
If you have any questions concerning this permit, please contact Ron Berry at telephone number
(919)•807-6396 or at email [e-mail].
Sincerely,
Coleen H. Sullins
Attachments
Cc: Washington Regional Office/Surface Water Protection Section (email)
EPA Region IV/Marshall Hyatt (email)
Central Files
NPDES Unit
Page 2 of 2

•
a•
NC0003760
•
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
E. I. DUPONT DE NEMOURS AND CO., INCOPORATED
is hereby authorized to discharge wastewater and stormwater from a facility located at
E. I. DUPONT - Kinston Facility
4693 Hwy 11 North
Lenoir County
to receiving waters designated as Neuse River in the Neuse River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, IV,
V, VI, VII, and VIII hereof.
The permit shall become effective September 1, 2010.
This permit and the authorization to discharge shall expire at midnight on January 31, 2013.
Signed this day July 30, 2010.
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management
Commission

11.
NC0003760
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no
longer effective. Therefore, the exclusive authority to operate and discharge from this facility
arises under the permit conditions, requirements, terms, and provisions included herein.
•
E. I. DUPONT DE NEMOURS AND CO.,.JNCOPORATED
is hereby authorized to:
1. Continue to operate the existing 3.6 MGD wastewater treatment facility located on NC
Highway 11, northeast of Kinston, in Lenoir County; and consisting of:
p influent catch basin with "Muffin Monster" solids grinder,
p two (2) - one million gallon retention ponds;
p one (1) - 3.6 million gallon aeration basin with two (2) 45HP aerators and thirteen
(13) 25HP floating aerators, •
p two (2) - 90 ft. diameter secondary clarifiers,
p two (2) sludge return lift stations,
p chlorine contact basin (no chlorination),
0 effluent flow measurement with recorder,
p effluent composite sampler
El six (6) sand drying beds.
2. Discharge from Outfall 001 said treatment facility treated wastewater, remediated ground
water, non -contact cooling water, and stormwater runoff through an effluent diffuser into
the Neuse River, Class C, NSW water in the Neuse River Basin, at the location specified on
the attached map.
3. Discharge from Outfall 002 non -contact cooling water, steam condensate, and stormwater
runoff into an unnamed tributary to the Neuse River, Class C, NSW water in the Neuse River
Basin, at the location specified on the attached map.
4. Discharge from Outfall 003 non -contact cooling water, steam condensate, and stormwater
runoff into Beaverdam Branch, Class C, NSW waters in the Neuse River Basin, at the
location specified on the attached map.
5. Discharge from stormwater Outfall 004 stormwater runoff into an unnamed tributary to
Beaverdam Branch, Class C, NSW water in the Neuse River Basin, at the location specified
on the attached map.
6. Discharge from stormwater Outfall 005 stormwater runoff into an unnamed tributary to the
Neuse River, Class C, NSW water in the Neuse River Basin, at the location specified on the
attached map.
7. Discharge from stormwater Outfall 006 stormwater runoff, including coal pile stormwater
runoff, .into an unnamed tributary to the Neuse River, Class C, NSW waters in the Neuse
River Basin, at the location specified on the attached map.

Discharge Point
Qutfall 003
Lat. 35° 20' 2.8" N
Long. 77° 28' 51.2" W
Treatment Facility
Lat. 35° 19' 30" N
Long. 77° 28' 13.7" W
Discharge Point
Outfall 002
Lat. 35° 19' 14.9" N
Long. 77° 28' 49.3" W
ui
Receiving Stream:
Stream Classification:
River Basin:
Sub -Basin:

NC0003760
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - OUTFALL 001
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee
shall be authorized to discharge treated process wastewater, treated sanitary wastewater, treated cooling
water,remediated groundwater, treated steam condensate, treated landfill leachate, stormwater, and
non -contact cooling water from Outfall 001 subject to the effluent limitations and monitoring requirements
below and in Condition A.(2.) of this permit:
EFFLUENT CHARACTERISTICS•
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
. Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample.
Type
, Sample , , .
Location
Flow
3.6 MGD
Continuous
Recording
Effluent
Total Monthly Flow (TMF) 1
Monitor & Report, MG
Monthly
Calculated
Effluent
BOD, 5-day, 20°C
102.0 lb/day
271.4 lb/day
Weekly
Composite
Effluent
Total Suspended Solids (TSS)
169.6 lb/day
550.5 lb/day
Weekly
Composite
Effluent
Fecal conform, #/ 100 ml
(Geometric mean)
Weekly
Grab
Effluent
Fecal conform, #/100 ml
(Geometric mean)
(June 1- September 30)
3/Week
Grab
Upstream &
Downstream 2
Fecal conform, #/100 ml
(Geometric mean)
(October 1- May 31)
Weekly
� Grab
Upstream &
Downstream 2
pH
Not more than 9.0 s.u. nor Tess
than 6.0 s.u.
Weekly
Grab
Effluent
Dissolved Oxygen (DO)
Not less than 2.5 mg/L at
approved sampling point
Weekly
Grab
S12
Dissolved Oxygen, mg/L (DO)
(June 1- September 30)
3/Week
Grab
Upstream &
Downstream 2
Dissolved Oxygen, mg/L (DO)
(October 1- May 31)
WeeklyGrab
Upstream &
Downstream 2
Temperature, °C
Weekly
Grab
Effluent
Temperature, °C
(June 1- September 30)
3/Week
Grab
Upstream &
Downstream 2
Temperature, °C
(October 1- May 21)
WeeklyGrab
Upstream &
Downstream 2
Kjeldahl Nitrogen (TKN) 3
Monitor & Report, mg/L
Weekly
Composite
Effluent
Nitrite/Nitrate Nitrogen 3
(NO2-N + NO3-N)
Monitor & Report, mg/L
Weekly
Composite
Effluent
Total Nitrogen, TN 1.3
TN = TKN + (NO2-N + NO3-N)
Monitor & Report, mg/L
Weekly
Calculated
Effluent
TN Load 1
TN Load = TN x TMF x 8.34
Monitor & Report, Ibs/month
Monthly
Calculated
Effluent
30,493 Ib/yr (effective 1/1/10) 4
_ Annually
Calculated
Effluent
Total Phosphorus (TP)
2.0 mg/L (quarterly average) 5
Weekly
Composite
Effluent
Ammonia Nitrogen, mg/L (NH3-N)
Monthly
Composite
Effluent
Acrolein 6
r
3.80 Ibs/day
3.80 Ibs/day
Monthly
Composite
Effluent
Chronic Toxicity '
Quarterly
Composite
Effluent
Part I, Page 1 of 19

NC0003760
•
A.(2.) .ADDITIONAL EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
- OUTFALL 001
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee
shall be authorized to discharge treated process wastewater, treated sanitary wastewater, treated cooling
water, remediated groundwater, and non -contact cooling water from Outfall 001 subject to the effluent
limitations and monitoring requirements below and in Condition A.(1.) of this permit:
Parameter
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
(Ibs/day)
Daily I
Maximum ,
(Ibs/day) 1
Daily
Maximum
(ug/L)
Measurement
Frequency (2)
Sample
Type
Sample
Location (1)
Bis(2-ethylhexyl) phthalate
0.44
1.18
Quarterly
Grab
E
Methyl Chloride
0.36
0.80
Quarterly
Grab
E
Acenaphthene
0.09
0.25
Annually
Grab
E
Acenaphthylene
0.09
0.25
Annually
Grab
E
Acrylonitrile
0.41
1.02
Annually
Grab
E
Anthracene
0.08
0.25
Annually
Grab
E
Benzene
0.16
0.58
Annually
Grab
E
Carbon Tetrachloride
0.08
0.16
Annually
Grab
E
Chlorobenzene
0.06
0.12
Annually
Grab
E
Chloroethane
0.44
. 1.13
Annually
Grab
• E
Chloroform
0.09
0.20
Annually
Grab
E
2-Chlorophenol
0.13
0.41
Annually
Grab
E
Di-n-butyl phthalate
0.11
0.24
Annually
Grab
E
1,2-Dichlorobenzene
0.33
0.69
Annually
Grab
E
1,3-Dichlorobenzene
0.13
0.19
Annually
Grab
E
1,4-Dichlorobenzene -
0.06
0.12
_
Annually
Grab
E -
1,1-Dichloroethane
0.09
0.25
Annually
Grab
E
1,2-Dichloroethane
0.29
0.89
_
Annually
Grab
E
1,1-Dichloroethylene
0.07
0.11
Annually
Grab
E
1,2-trans-Dichloroethylene
0.09
0.23
Annually
Grab
E
2,4-Dichlorophenol
0.17
0.47
Annually
Grab
E
1,2-Dichloropropane
0.65
0.97
Annually
Grab
E
1,3-Dichloropropylene
0.12
0.19
_
Annually
Grab
E
Diethyl phthalate
0.34
0.86
Annually
Grab
E
2,4-Dimethylphenol
0.08
0.15
Annually
Grab
E
Dimethyl phthalate
0.08
0.20
Annually
Grab
E
4,6-Dinitro-o-cresol
0.33
1.17
Annually
Grab
E
2,4-Dinitrophenol
0.30
0.52
Annually
Grab
E
2,4-Dinitrotoluene
0.48
1.21
Annually
Grab
E
2,6-Dinitrotoluene
1.08
2.71
Annually
Grab
E
Ethylbenzene
0.14
0.46
Annually
Grab
E'
Fluoranthene
0.11
0.29
Annually
Grab
E
Fluorene
0.09
0.25
Annually
Grab
E
Hexachlorobenzene
0.02
0.12
Annually
Grab
E
Hexachlorobutadiene
0.09
0.21
Annually
Grab
E
Hexachloroethane
0.09
0.23
Annually
Grab
E
Methylene Chloride
0.17
0.38
Annually
Grab
E
Naphthalene
0.09
0.25
Annually
Grab
E
Nitrobenzene
0.11
0.29
_
Annually
Grab
E
2-Nitrophenol
0.17
0.29
Annually
Grab
E
4-Nitrophenol
• 0.30
0.52
Annually
Grab
E
Part 1, Page 3 of 19

NC0003760
(continued A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - OUTFALL 001)
Footnotes:
1) TN Load is the mass quantity of TN discharged in a given period of time. See Special Condition A.(5.),
Calculation of Total Nitrogen Loads.
2) Sample locations: I - Influent, E - Effluent, S1 - Chlorine contact chamber or other approved location, U -
Upstream, 100 yard above outfall, D - Downstream, 1 mile below outfall.
3) For a given wastewater sample, TN = TKN + (NO3-N + NO2-N), where TN is Total Nitrogen, TKN is Total
Kjeldahl Nitrogen, and (NO3-N + NO2-N) are Nitrate and Nitrite Nitrogen, respectively.
4) Compliance with this limit shall be determined in accordance with Special Condition A.(6.) of this permit,
Annual Limits for Total Nitrogen.
5) The quarterly average for total phosphorus shall be the average of composite samples collected weekly
during the calendar quarter (January -March, April -June, July -September, October -December).
6) Monthly monitoring/reporting shall continue with limits taking effect September 1, 2013; see Condition
A.(21.).
7) Chronic Toxicity (Ceriodaphnia) P/F at 1.9%; January, April, July, and October; see Condition A.(8.),
Chronic Toxicity Permit Limit.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
There shall be no addition of chromium, zinc, or copper to the cooling water systems except as
components of pre -approved biocidal compounds. See Condition A.(9.).
Part I, Page 2 of 19

NC0003760
A.(3.) EFFLUENT'LIMITATIONS AND MONITORING REQUIREMENTS - OUTFALL 002
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee
shall be authorized to discharge non -contact cooling water, steam condensate, and stormwater runoff from
Outfall 002 subject to the following effluent limitations and monitoring requirements:
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
- Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow, MGD
•
Monthly
Instantaneous
Effluent
pH
Not greater than 9.0 s.u. nor
Tess than 6.0 s.u.
Weekly
Grab
Effluent
_Temperature, °C
See Footnote 1
Monthly
Grab
Effluent
Total Residual Chlorine (TRC)
17 pg/L 2
Monthly
Grab
Effluent
Total Lead
25 pg/L
33.8 pg/L
Monthly
Composite
Effluent
Total Mercury (Method 1631 E)
0.012 µg/L
0.012 pg/L
Monthly
Composite
Effluent
Total Silver, pg/L
Monthly
Composite
Effluent
Total Zinc, pg/L
Monthly
Composite
Effluent
Total Cadmium, pg/L
Quarterly
Composite
Effluent
Total Chromium, pg/L
Quarterly
Composite
Effluent
Total Copper, pg/L
Quarterly
Composite
Effluent
Total Nickel, mg/L
Quarterly
Composite
Effluent
Total Selenium, µg/L
Quarterly
Composite
Effluent
Total Kjeldahl Nitrogen (TKN)
Monitor & Report, mg/L
Quarterly
Composite
Effluent
Nitrite/Nitrate Nitrogen
(NO2-N + NO3-N)
Monitor & Report, mg/L
Quarterly
Composite
Effluent
Total Nitrogen (TN)
TN = TKN + (NO2-N + NO3-N)
Monitor & Report, mg/L
•
Quarterly
Calculated
Effluent
Total Phosphorus (TP)
2.0 mg/L (quarterly average) 3
Quarterly
Composite
Effluent
Footnotes:
1) The temperature of the effluent shall not cause an increase in the temperature of the receiving stream of
more than 2.8 °C nor at any time cause the ambient water temperature to exceed 32 °C.
2) Total Residual Chlorine compliance is required for chlorine or chlorine derivative used for disinfection. The
Division shall consider all effluent TRC values reported below 50 ug/1 to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North
Carolina certified laboratory (including field certified), even if these values fall below 50 ug/L.
3) The quarterly average for total phosphorus shall be the average of composite samples collected during the
calendar quarter (January -March, April June, July -September, October -December).
There shall be no discharge of floating solids or visible foam in other than trace amounts. •
There shall be no addition of chromium, zinc, or copper to the cooling water systems except as
components of pre -approved biocidal compounds. See Condition A.(9.).
Part 1, Page 5 of 19

NC0003760
Parameter
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
(Ibs/day)
Daily
Maximum
(lbs/day)
Daily
Maximum
(ug/L)
Measurement
Frequency (2)
Sample
Type
Sample
Location (1)
Phenanthrene
0.09
0.25
Annually
Grab
E
Phenol
0.06
0.11
Annually
Grab
E
Pyrene
0.11
0.28
Annually
Grab
E
Tetrachloroethylene
0.09
0.24
Annually
' Grab
E
,Toluene
9.11
0.34
, Annually
,. Grab ,
E
_
1,2,4-Trichlorobenzene
0.29
0.59
_
Annually
Grab
E
1,1,1-Trichloroethane
0.09
0.23
Annually
Grab
E
1,1,2-Trichloroethane
0.09
0.23
Annually
Grab
E
Trichloroethylene
0.09
0.23
Annually
Grab
E
Vinyl Chloride
0.44
1.13
Annually
Grab
E
Total PAHs 42)
0.25 (3)
8.41 (3)
Annually
Calculated
E
Benzo(a)anthracene
0.09
0.25
Annually
Grab
E
' 3,4-Benzofluoranthene (4)
- 0.10
0.26
Annually
Grab
E
Benzo(k)fluoranthene
0.09
0.25
Annually
Grab
E
Benzo(a)pyrene
0.10
0.26
Annually
Grab
E
Chrysene
0.09
0.25
Annually
Grab
E
Dibenz(a,h)anthracene
•
_
Annually
Grab
'E
Indeno(1,2,3-ed)pyrene
Annually
Grab
E
Footnotes:
1) Sample location: E - Effluent.
2) In the event that the analysis for any of these parameters equals or exceeds its Practical Quantitation
Limit, the monitoring frequency for that parameter shall immediately increase to once per quarter. When
12 consecutive quarterly samples using appropriate laboratory methods do not detect the parameter, the
monitoring frequency for that parameter shall immediately return to once per year. Also see Footnote (3).
3) Total PAHs 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. The sum of
concentrations of these parameters shall not exceed the stated Total PAH limit. In the event that the
monitoring frequency for any of these parameters changes per Footnote (2), the change shall apply to all
of the Total PAH parameters.
4) 3,4-Benzofluoranthene is also listed as Benzo(b)fluoranthene,
.,.
Part I, Page4of19

NC0003760
.A.(19. )- BENCHMARK COMPLIANCE AND TIERS •
The permittee shall report the analytical results from the first sample with valid results within the
monitoring period. The permittee shall compare monitoring results to the benchmark values. Unless stated
otherwise the benchmark values are not permit limits but should be used as guidelines for the permittee's
Stormwater Pollution Prevention Plan (SPPP). When a benchmark value is exceeded it requires the
permittee to increase monitoring, increase management actions, increase record keeping, and/or install
stormwater Best Management Practices (BMPs) in the Tier One and Tier Two program.
Tier One
If: The first valid sampling results are above a benchmark value, or outside of the benchmark
range, for any parameter at any outfall;
Then: The permittee shall:
1. Conduct a stormwater management inspection of the facility within two weeks of receiving
sampling results
2. Identify and evaluate possible causes of the sample results exceeding the benchmark value.
3. Identify potential and select the specific: source controls, operational controls, or physical
improvements to reduce concentrations of the parameters of concern, or to bring
concentrations within the benchmark range.
4. Implement the selected actions within two months of the inspection.
5. Record each instance of a Tier One response in the Stormwater Pollution Prevention Plan.
Include the sample date, the sample value that exceeds its benchmark, the inspection date, the
personnel conducting the inspection, the selected actions, and the date the selected actions
were implemented.
Tier Two
If: During the term of this permit, the first valid sampling results from two consecutive monitoring
periods are above the benchmark values, or outside of the benchmark range, for any specific
parameter at a specific discharge outfall;
Then: The permittee shall:
1. Repeat all the required actions outlined above in Tier One. -
2. Immediately institute monthly monitoring for all parameters (except mercury) at every outfall
where a sampling result exceeded the benchmark value for two consecutive samples. Monthly
(analytical and qualitative) monitoring shall continue until three consecutive sample results are
below the benchmark values or within the benchmark range.
3. If no discharge occurs during the sampling period, the permittee is required to submit a
monthly monitoring report indicating "No Flow" to comply with reporting requirements.
4. Maintain a record of the Tier Two response in the Stormwater Pollution Prevention Plan.
Tier Two (Special)
If: During the term of this permit, if the valid sampling results required for the permit monitoring
periods exceed the benchmark value, or are outside the benchmark range, for any specific
parameter at any specific outfall on four occasions
Then: The permittee shall: .
1. Notify the DWQ Regional Office Supervisor in writing within 30 days of receipt of the fourth
results.
2. DWQ may but is not limited to require the permittee to:
p revise, increase, or decrease the monitoring frequency for the remainder of the permit;
0 install structural stormwater controls;
Q implement other stormwater control measures; or
_ p implement site modifications to qualify for the No Exposure Exclusion.
If a Total Maximum Daily Load (TMDL) for mercury is approved for this segment of the Neuse River, the
permittee may be required to monitor mercury more frequently.
r
The Division will evaluate the monitoring results to determine whether additional BMPs are needed to
control the pollutant(s) of concern to the maximum extent practicable. If the Division determines
additional BMPs are needed, the permittee will be notified and required to (1) develop a strategy for
implementing appropriate BMPs, and (2) submit a timetable for incorporation of those BMPs into ,the
permitted Stormwater Pollution Prevention Plan.
Part 1, Page 18 of 19

NC0003760
•
A.(20.) MONITORINGREQUIREMENTS FOR ON -SITE VEHICLE MAINTENANCE
Facilities which have any vehicle maintenance activity occurring on -site which uses more than 55 gallons
of new motor oil per month, averaged over the calendar year, shall monitoring as specified additional
discharge characteristics in any stormwater outfall that contains a vehicle maintenance area stormwater
runoff. All monitoring shall be performed during a representative storm event I at storm water outfall
(SDO) and shall meet requirements in Special Condition A.(19.) Benchmark Compliance and Tiers,
Discharge
gharacteristics
Measurement
Frequency 2
Sample
Type 3 .
Benchmark
Value
Sample
Location 4,
Total Petroleum
Hydrocarbons (TPH)
semi-annual
Grab
15 mg/L
SDO
New Motor Oil Usage,
gallons /month
semi-annual
Estimate
Footnote:
1. A representative stormwater event is a storm event that measures greater than 0.1 inches of rainfall. The
time between this storm event and the previous storm event measuring greater than 0.1 inches must be at
least 72 hours. A single storm event may have a period of no precipitation of up to 10 hours. For example, if
it rains but stops before producing any collectable discharge, a sample may be collected if the next rain
producing a discharge begins within 10 hours.
2. Semi-annual means two times a year. See Special Condition A.(16.) Monitoring Schedule.
3. Grab samples shall be collected within the first 30 minutes of flow at the SDO. If the stormwater runoff is
controlled by a stormwater detention pond a grab sample of the discharge from the pond shall be collected
within the first 30 minutes of discharge from the pond.
4. Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) that discharges
stormwater runoff from area(s) where vehicle maintenance activities occur.
A.(21.) ACROLEIN COMPLIANCE SCHEDULE
To allow the Permittee to isolate the source, evaluate the best process change or treatment method, and
then implement the necessary action, acrolein limits will take effect September 1, 2013. The Permittee
must complete each milestone and submit a written status report on the milestone date. Non -submittal by
the milestone date will be considered out of compliance and subject to enforcement action.
1) MILESTONE 1- COMPLETION OF THE EVALUATION PROCESS - December 1, 2011
Permittee completed generation of process wastewater data for acrolein for all Process and Waste
treatment Plant operating conditions, defined potential options to assure consistent compliance with
discharge limits, and selected the most appropriate option for further evaluation.
2) MILESTONE 2 - COMPLETION OF DESIGN AND OTHER PERM/TING - September 1, 2012
Permittee conducted detail engineering evaluation and engineering design of the selected option. If
selected option requires any wastewater plant upgrades then Permittee to seek State approval for
implementation.
3) MILESTONE 3 - COMPLETION AND START UP - IN COMPLIANCE - September 1, 2013
Permittee procured equipment for needed upgrades, installed equipment, completed start-up and
debugging of new equipment/process. Acrolein limits are enforced.
Reports to include owner's name, NPDES permit number, and Permittee contact person. Reports to be
remitted to:
(1) NCDENR
Ron Berry
1617 Mail Service Center
Raleigh, NC 27699-1617
(2) NCDENR/Surface Water Protection
Washington Regional Office
943 Washington Square Mali
Washington, NC 27889
Part I, Page 19 of 19
•

Berry, Ron
From: [e-mail]
Sent: Tuesday, July 13, 2010 10:28 AM
To: Berry, Ron
Subject: Fw: NPDES Draft Permit Modification and Fact Sheet NC0003760 - E. I. DuPont Kinston Plant
is this what you are referring to?
I
Forwarded by Marshall Hyatt/R4/USEPA/US on 07/13/2010 10:28 AM
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(Marshall Hyatt/R4/USEPA/US
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I"Berry, Ron" <[e-mail]>
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105/27/2010 03:00 PM
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IRe: NPDES Draft Permit Modification and Fact Sheet NC0003760 - E. I. DuPont Kinston Plant
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EPA has no comments on this draft modification.
I
1

AFFIDAVIT OF PUBLICATION
NORTH CAROLINA.
Wake County. ) Ss.
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 Environmental Man-
agement Commission proposes to issue a
N P DES wastewater discharge permit to the
person(s) listed below.
Written comments regarding the proposed
Permit will be accepted until 30 days after
the publish date of this notice. The Director
of the NC Division of Water Quality (DWQ)
may hold a public hearing should there be a
significant degree of public interest. Please
mall comments and/or information requests
to DWQ at the above address. Interested
persons may visit the DWQ at 512 N. Salis-
bury Street, Raleigh, NC to review informa-
tion an .file.. Additi0nat_jnformati
NPDES permits and this notice may be
found on our website:
www.ncwaterqual ity.arg,
or by calling [phone].
E.I. DuPont requested modification of per-
mit NC0003760for its Kinston Plant in Lenoir
County; this permitted discharge is treated
industrial wastewater and stormwater to
Me Neuse River, Neuse River Basin.
Progress Energy's H.F. Lee Steam Electric
Plant has appliedfor a modification of
permit NC0003417 discharging to the Neuse
River in the Neuse River Basin. This modifi-
cation is for eliminating the coal-fired units
and adding a combined cyr'' generating
facility.
ConocoPhillips Company has applied to re-
new NPDES permit NC0084697 for ground-
water REM discharge 10 the Tar River,
Rocky Mount. •
Chatham
5866 for therBynumsWWTPThey will
relocate Outfall 001 upstream near the
WWTP following Pittsboro's abandonment
of Its WTP intake in tfie Haw River.
— N&O: May 29, 2010
Before the undersigned, a Notary Public of Chatham
County North Carolina, duly commissioned and authorized to
administer oaths, affirmations, etc., personally appeared Debra
Peebles, who, being duly sworn or affirmed, according to law,
doth depose and say that she is Accounts Receivable Specialist
of The News and Observer a corporation organized and doing
business under the Laws of the State of North Carolina, and
publishing a newspaper known as The News and Observer, in
the City of Raleigh , Wake County and State aforesaid,
the said newspaper in which such notice, paper, document, or
legal advertisement was published was, at the time of each and
every such publication, a newspaper meeting all of the
requirements and qualifications of Section 1-597 of the
General Statutes of North Carolina and was a qualified
newspaper within the meaning of Section 1-597 of the General
Statutes of North Carolina, and that as such she makes this
affidavit; that she is familiar with the books, files and business
of said corporation and by reference to the files of said
publication the attached advertisement for NCDENR/ DWQ/
POINT SOURCE was inserted in the aforesaid newspaper
on dates as follows: 05/29/10
Account Number: 80763040
The above is correctly copied from the books and files of the aforesaid Corporation and publication.
Debra Peebles, Accounts Receivable Specialist
Wake County, North Carolina
Sworn or affirmed to, and subscribed before me, this
01 day of JUNE , 2010 AD by, Debra Peebles
In Testimony Whereof, I have hereunto set my hand
and affixed my official seal, the day and year aforesaid.
Janet Scroggs, Notary P,
My commission expires 14th day of March 2014.

NPDES Permit Fact Sheet- 05/25/10
Page .1 of 4
NCDENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
E.I. DuPont de Nemours (Formerly UNIFI)
NC0003760
NC0003760
Facility Information
Applicant/Facility
Name:
E.I. DuPont- Kinston
Applicant Address:
P. O. Box 800; Kinston, NC 28502-0800
Facility Address:
4693 Highway 11 North; Kinston, NC 38501
Type of Waste:
Industrial treated wastewater (See outfall description)
Facility/Permit Status:
Class IV - Biological/Active; Modification for acrolein compliance
County:
Lenoir County
Receiving Stream:
Neuse River
Stream Classification:
C, NSW
Subbasin:
03-04-05
Index No.
27-(75.7)
Drainage Area (mi2):
2,552
303(d) Listed?
Yes (TMDL
completed)
Washington
Summer 7Q10 (cfs)
283.1
Regional Office:
Winter 7Q10 (cfs):
291.6
State Grid / USGS
Quad:
F29SW
Grifton, NC
3002 (cfs)
-
Permit Writers:
Ron Berry
Average Flow (cfs):
1,514
Date:
5/24/10
Outfall 1: Treated process wastewater, treated sanitary wastewater, treated landfill
leachate, treated steam condensate, remediation ground water, non -contact cooling
water, treated cooling water, storm water*
Receiving Stream:
Neuse River
Stream Classification:
C, NSW
Permitted Flow
3.6 MGD
IWC (%):
1.9%
Outfall 2: Non -contact cooling water, steam condensate, storm water*
Receiving Stream:
UT to Neuse River
Stream Classification:
C, NSW
(no stream flow)
Outfall 3: Non -contact cooling water, steam condensate, storm water*
Receiving Stream:
UT to Neuse River
Stream Classification:
C, NSW
(no stream flow)
Outfall 4, Outfall 5, Outfall 6: Storm water*
Receiving Stream:
UT to Neuse River
Stream Classification:
C, NSW
(no stream flow)
* Bethany Georgoulias reviewed and provided details to meet stormwater requirements
Summary
This facility was formerly owned by E. I. DuPont, then subleased by UNIFI, and then recently
transferred back to E. I. DuPont for resale. The plant is currently up for sale, in the interim the
polyester bulk resin pellet production lines are being operated by E. I. DuPont. The facility yarn and
fiber production has been idle for several years. UNIFI submitted a permit application in December
2007; but the plant ownership has subsequently been transferred. The facility current owner, E. I.
DuPont, has submitted an amended renewal application and other support data.
A major permit modification was approved in September 2006 to accommodate storm water
compliance, including relocating Outfall 2 and adding Outfalls 004 and 006. Steam condensate was
added to the waste stream description for Outfall 001. The leachate stream from the landfills (ash
and others) was permitted as an approved influent to the WWTP. Outfall 001 contains the treated
effluent.

NPDES'Permit Fact Sheet - 05/25/10
Page 2 of 4 NC0003760
In April 2010 a renewal permit was issued with acrolein limits imposed on Outfall 001 under effluent
page A.(2.). DuPont initially requested a compliance timeline during the draft phase. Upon further
discussions a formal request for a 36 month compliance timeline with defined action items was
received in May 2010. A permit draft modification was initiated as a result. It was determined that
acrolein is part of the primary pollutants for Outfall 001 and not Subpart I, and as such a correction
will be made to relocate acrolein to effluent page A.(1.).
H isto ry
The original plant began operation in 1952 and was equipped with 12 production lines. A new
production line was added in 2006. Historically, process wastewaters have included those from
polymerization, spinning, drawing, and finishing process, including wastewater from the on -site
power facility and contact cooling water. These process wastewaters (Outfall 001) have been subject
to federal effluent guidelines for the OCPSF category under 40 CFR Part 414: Subpart C, Other Fibers;
Subpart D, Thermoplastic Resins; and Subpart I, Direct Discharge Point Sources That Use End -of -Pipe
Biological Treatment; and 40 CFR 133.102.
Outfalls 002 and 003 consist of non -contact cooling water, steam condensate, and storm water
runoff. Outfalls 004, 005, and 006 consist of storm water runoff. Outfall 006 also contains the
stormwater run off from the coal pile.
An SOC issued for mercury compliance in Outfall 003 expired in March 1, 2010. As part of the SOC
the Permittee completed installation of a slip pipe in the portion of the buried line that was suspect
for the infiltration of mercury. All monthly mercury readings have been in compliance in Outfall 003
since October 2009.
The EPA issued a NOI letter August 14, 2008 for violations of:
1. September 2007 - Methyl, chloride monthly, average
2. September 2007 - Bis (2-ethlhexyl) Phthalate, monthly average
3. June 2006 - Total cadmium, daily max
4. April 2005; January, April, and October 2006; June -September and December 2007 - Total
mercury, daily max
5. July 2005 and April June 2005 - Total lead, reporting.
The EPA issued a NOI letter December 22, 2008 for violations of:
1. January, February, May, and June 2008 - Mercury, daily max.
An Administrator Order was issued by EPA April 21, 2009.
PERMITTING STRATEGY FOR ACROLEIN COMPLIANCE OUTFALL 001
Since April 2010 no significant process changes have occurred and the only permit item of concern is
the acrolein 36 month timetable modification. The previously Outfall 001 flow, defined as complex
wastewater, continues to be 3.6 MGD.
Acrolein limits calculations:
The Division reviewed the new federal standard and determined the applicable concentration -based
NCWQS. A reasonable potential analysis (RPA) based on the NCWQS for Acrolein discharged from
this facility, from July 2007 to March 2010 was conducted. December 2009 value was 1020 µg/I, and
the potential to exceed the NCWQS was shown. A monthly average limit and daily maximum limit
with increased monthly monitoring was added to this permit effluent page A.(1.). The previous
permit acrolein limits and monitoring were removed from the effluent page A.(2.). This criteria
supercedes the permit section III a. (2) Arcolein criteria. The following shows the calculations and
review steps:

NPDES Permit Fact Sheet - 05/25/10
Page, 3 of 4
NCWQS chronic, Aquatic Life = 3 µg/I
NCWQS acute, Aquatic Life = 3 µg/I
NCWQS = non -carcinogen
Permitted flow = 3.6 MGD
IWC%, 7Q10s = 1.93%
IWC%, 1Q10s = 2.37%
NC0003760
i) Calculate NCWQS chronic limit (monthly average limit)
Aquatic life: 3 µg/I x 3.6 MGD x 0.00834 0.0193 = 4.67 Ibs/day
ii) Calculate NCWQS acute limit (daily maximum limit)
Aquatic Life: 3 pg/I x 3.6 MGD x 0.00834 _ 0.0237 = 3.80 Ibs/day (mass -based)
iii) Determine limits and monitoring frequency
Compare monthly average and daily maximum limits, monthly average limit
cannot be less stringent than daily maximum, monthly average limit reduced to
match daily maximum mass -based limit. Per the RPA, has potential to exceed
NCWQS limits, imposed monthly monitoring
Acrolein compliance timetable:
As newly imposed limits the Permittee requested a 36 month compliance timetable to more clearly
define the source, the design, and install the corrective measures and/or treatment. A special
condition was developed that established milestones as defined by the Permittee and requires
submittal of status reports.
1) MILESTONE 1 - COMPLETION OF THE EVALUATION PROCESS (14 months from the effective date of
this permit)
Permittee completed generation of process wastewater data for acrolein for all Process and
Waste treatment Plant operating conditions, defined potential options to assure consistent
compliance with discharge limits, and selected the most appropriate option for further evaluation.
2) MILESTONE 2 - COMPLETION OF DESIGN AND OTHER PERM/TYING (24 months from the effective
date of this permit)
Permittee conducted detail engineering evaluation and engineering design of the selected option.
If selected option requires any wastewater plant upgrades then Permittee to seek State approval
for implementation.
3) MILESTONE 3 - COMPLETION AND START UP - IN COMPLIANCE (36 months from the effective date
of this permit)
Permittee procured equipment for needed upgrades, installed equipment, completed start-up and
debugging of new equipment/process. Acrolein limits are enforced.
The Permittee will submit the required status reports to Ron Berry in the NPDES Unit and to the
Washington Regional Office/Surface Water Protection.
Permit Effective: September 1, 2010
Permit Expires: January 31, 2013
State Contact Information
If you have any questions on any of the above information or on the attached permit, please contact
Ron Berry at [phone]. If you have any specific questions in regards to stormwater permitting
and its implementation please call Bethany Georgoulias at [phone].

'NPDES Permit Fact Sheet - 05/25/10
Page 4 of 4
NC0003760
NPDES Recommendation by:
Signature
"` Y
Date
/z 51/0
Regional Office Comments:
Regional Recommendation by:
Signature
Regional Supervisor:
Date
Signature Date

REASONABLE POTENTIAL ANALYSIS
DuPont -Kinston
NC0003760
Time Period Jul 2007 - Mar 2010
Qw (MGD) 3.6
7Q108 (cfs) 283.1
7Q10W (cfs) 291.6
30Q2 (cfs) 0
A. Stream Flow, QA (cfs) 1514
Reeving Steam Reuse River
WWTP Class IV
IW+C (36) at 7010S 1.9329
7Q1OW 1.8776
0 30Q2 NIA
QA 0.3672
Stream Claw C
Outfall ti
Qw=3.6 MGD
Calculation of 1010 based on 7010
1010 = 0.843 (7010) °9613
SUMMER 1010= 229.4 (cfs)
SUMMER 1010 IWC % = 2.37
WINTER 1010 = 236.2 (cfs)
WINTER 1010 IWC % = 2.31
TYPE
In
STANDARDSiI
CRITERIA (2)
POL
-
!hits
-
REASONABLE Panama RESULTS
MBIUMMOMDED ACTION
PARAMETER
/rCINS/ K FAY/
aroma Aiwa
o / Dd Mar Red Or ADorrabrr a
Acrolain
NC
3 3
eglL
13 4
11026.2
Aade: 127
_6skfay __ 3.801 dAate
C we c: 155
barley 4.660
RPA award's sate and dro c WOS
Era assigned as daily maximum and monthly average
Converted to bs/aay
(=ease to modtty mallodng
0 0
WA
Aorta NO WOS
0 0
WA
Aate: NO WOS
0 0
N/A
Ante: NO WOS
Chronic:---wA
—•—•------------------•-------•—
0 0
N/A
Aate: NO WOS
Chronic:---�
-------------------------------
0 0
WA
Ante: NO WOS
0 0
WA
Aate: NO WOS
'
0 0
WA
Acute: NOWOS
Chronic: •WA
,.
—•----- ---•—•- —•-------------
0 0
NIA
Aorta NO WOS
0 0
WA
Acute: NO WOS
,
0 0
WA
Aorta NO WOS
0 0
N!A
Ante: NO MKS
0 0
WA
Ante: NO WOS
0 0
WA
Aata NO WOS
0 0
MA
Aata NO WOS
• Lopmd:
C = Cwcbroponic
NC = Plarrcardhope ic
A = Aes6W
..W Discharge
FA
Fun
Pal
Iim
Pal
R�7
MIR
Pig
Pon
RPA, rpa
5/25/2010

In Viol A+Xi
DuPont Kinston Plant
Q ,/htcl-ft Hwy.11 Nor h
PO Box 800
13 (641 - Pt eR.1 { 4.1/1e .S/4C ive w� Kinston, NC 28502-0800
1/1VaIvdot !r) ` toil..(311c%/fJ4Azel
_ w,11 449, /10 f ,1,t Nohcr, eAt e 0°i'�
% la 07 2010 4
-�-- /hRf�* ..tuf1�3M/rlE<� R+�� id" tr y
CERTIFIED MAIL: 7009-0080-0002-4022-2718
RETURN RECEIPT REQUESTED
Collen H. Sullins, Director
Division of Water Quality
North Carolina Department of Environmental and Natural Resources
512 N. Salisbury Street
Raleigh, NC 27604
7061
MAY 13 2010
POINT 01..RO E 3RA CH
Dear Ms. Sullins:
Re: DuPont Kinston, NC Permit No. NC0003760
DuPont submits this request to modify the above referenced permit to include 36 months
compliance schedule for acrolein discharge limits in the Outfall 001.
Acrolein is generated in the Sorona manufacturing process. During the last year the Sorona
manufacturing process was modified and production capacity was expanded. We are still on a
learning curve to assess generation of acrolein at various operating conditions and manufacturing
rates.
The acrolein discharge limit placed in the permit that became effective April 1, 2010 is the first
time acrolein has been listed in the permit as a limit, and we believe we will not be able to
consistently comply with this limit. We had commented on the draft permit and asked for a
compliance schedule. It is our understanding that due to time constraints and without milestones,
the State was not able to grant us a compliance schedule when the final permit was issued.
Our proposed 36 months compliance schedule is as follow:
1. Generate process wastewater data for acrolein for all Process and Waste Treatment Plant
operating conditions, define potential options (process change and/or wastewater
treatment plant upgrade) to assure consistent compliance with discharge limits, and select
the most appropriate option for further evaluation 14 months Z. •
2. Conduct detail engineering evaluation of the above selected option and engineering
. design; if the selected option requires any wastewater treatment plant upgrade, then seek
.7-State approval for implementation 10 months
cure equipment for needed upgrades, install equipment, start-up, and debugging
....12 months
E.I. du Pont de Nemours and Company

Feel free to contact Alex Torres at [phone] if you need additional information on this
request.
Sincerely,
arold Thom
Plant Manager
cc: Tom Belnick, DWQ, NCDENR
Bharat Desai, DuPont, DUET

e)E5 �'=r�.,d`.. Nc.-1d Cps
Berry, Ron
From: Berry, Ron
Sent: Wednesday, March 17, 2010 3:33 PM
To: 'James R Proctor'
Cc: Hodge, Al
Subject: Future Changes to NPDES Permit
James,
•
As we discussed I am sending this email as a response to E. I. DuPont inquiry for a 36 month compliance timetable to
meet the new acrolein limits. The final permit includes acrolein limits significantly higher than the draft limits. The
NPDES final permit issued for E. I. DuPont Kinston facility takes effect April 1, 2010. In the new permit acrolein has a
quarterly monitoring frequency with a 126.6 µg/L daily maximum limit and 3.80 Ibs/day monthly average limit.
In our March 12, 2010 discussion another request to implement a 36 months compliance timetable for the pending
acrolein limits was made as previously requested in the September 2009 letter for any new limits. It was pointed out
that the written response did not address the original September 2009 compliance timetable request.
In response to E. I. DuPont request to implement a 36 month compliance timetable E. I DuPont will need to submit a
major permit modification application. Upon acceptance of the application the Division will evaluate and determine a
compliance timetable for meeting the acrolein limits. The major permit modification process requires three copies of the
permit modification application with a application fee, $1,030. The application form, instructions for completing this
form, and details are on the DWQ web portal under Surface Water/Point-Source/NPDES-
Wastewater/Applications/Forms .
In addition, the cause and/or source of the acrolein and any time related issues such as critical path events, estimated
engineering time, estimated equipment procurement, estimated construction time must be provided to assist the
Division in its permit modification evaluation. Any new wastewater treatment process or equipment will also require
review and approval by the Division C,G&L group. The C,G&L requirements can be found on the DWQ web portal under
C,G&L.
As far as compliance in the interim you need to contact the Washington Regional Office. The Regional office is the
primary contact for enforcement issues.
If you have any additional questions you can contact me.
Ron Berry [e-mail]
Engineer I
DWQ/Point Source/NPDES
NCDENR
Phone: [phone]
Fax: [phone]
Office: Archdale Building Room 925N
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.