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NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0003573
PERMITTEE NAME: E.I. DuPont de Nemours & Co., Inc.
FACILITY NAME: Fayetteville Works
Facility Status: Existing
Permit Status: Renewal
Major � Minor
Pipe No.: 001
Design Capacity: 2 MGD
Domestic (% of Flow): 3
Industrial (% of Flow): 97
Comments:
OCPSF information attached. 001 flows into 002 before discharge to
ever
RECEjVING STREAM; Cape Fear River
Class: C
Sub -Basin: 03-06-16
Reference USGS Quad: H23SE
County: Bladen
Regional Office: Fayetteville Regional Office
Previous Exp. Date:
5/31/96
(please attach)
Treatment Plant Class: III
Classification changes within three miles:
None
Requested by: Greg Nizich Date:
Prepared b37:
Reviewed b�
_!��
���
Date:
Date:
��f �
�,
12/6/95
Modeler
Date Rec.
#
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-. � �
7Q10 (cfs) Winter 7Q10 (cfs) 30Q2 (cfs)
Toxicity Limits: IWC % Acute/Chronic
Instream Monitoring: � ��� �"
Parameters � t°'/ � � � ���.1t� �C��
Upstream Location
Downstream Location
OUTFALL 001 -Process Wastewater
Recommended Limits
Monthly Avg. Daily Max.
Flow (MGD): 2.0
BODS (lbs/day): 157.5 420.1
TSS (lbs/day):_ 262.5 853.3
DO (mg/1):
pH (SU): 6.0-9.0 6.0-9.0
Oil &Grease (lbs/day): monitor
OCPSF Parameters: **
** Please refer to wasteload allocation fact -sheet for
attached list of OCPSF pazameters and limits.
Comments:

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12/7/95
G
uPont � Bladen County
NCO003573
"utiall ®®I _
Effluent Characteristics
B®D5 (lbs/day)
TSS (lbs/da)
H
Monthly
Average
157.5
262.5
6.0 to 9.0
Daily
Maxirnu,nq
420.1
853.3
6.0 to 9.0
-
Co nn end J
BPT
BPT
BPT
Outfall 002 and 003 are not subject to CFR limits_
f
Above limits are based on a process flow of 0.787 MGD in accordance with EPA guidance (lon -tcrrn a-'[CjJ. flow - 1992-1995).
Small allocation also given for 6,000 Qnd sanitary wastewater. `
Ty e of Product Produced
Plastic, Nylon, and Tae products
Lbs/Dax Produced
N/A
Effiue. t Guideline Refez ence
40 CFR 414 Snb arts D & I
Outfall 002 and 003 are not subject to CFR limits_

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NC0003573
PERMITTEE NAME: E.I. DuPont de Nemours & Co., Inc.
FACILITY NAME: Fayetteville Works
Facility Status: Existing
Permit Status: Renewal
Major Minor
Pipe No.: 002
Design Capacity:
Domestic (% of Flow): 3
Industrial (% of Flow): 97
Comments:
RECEIVIlVG STREAM: Cape Fear River
Class: C
Sub -Basin: 03-06-16
Reference USGS Quad: H23SE
County: Bladen
Regional Office:
Office
(please attach)
Previous Exp. Date: 5/31/96 Treatment Plant Class:
Classification changes within three miles:
None
Requested by: Greg Nizich Dom; 12/6/95
Modeler
Date Rec.
#
�_ -
treamin on
1 .
OUTFALL 002 -Non-contact Cooling Water
Recommended Limits
Flow (MGD):
BOD5 (lbs/d(lbs/day):COD (lbs/day):
pH (SU):
Flouride (lbs/day):
TN (mg/1):
TP
Monthly Avg.
monitor
monitor quarterly
monitor quarterly
6.0-9.0
monitor
Daily Max
6.0-9.0
5000
(mom)• monitor
Temperature The temperature of the effluent shall not cause an
('C) increase in the temperature of the receiving
stream of more than 2.8°C and in no case cause
the ambient water temperature to exceed 32°C.

Facility Name:
NPDES No..
Type of Waste:
Facility Status.
Permit Status:
Receiving Stream:
Stream Classification.
Subbasin:
County:
Regional Office:
Requestor;
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
E.I. DuPont de Nemours & Co.-
NC0003573
97% Industrial, 3% Domestic
Existing
Renewal
Cape Fear River
C
03-06-16
Bladen
Fayetteville
Greg Nizich
12/6/'95
H23SE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Request � « X399 & 8 k00
Fay ettevWorl's'_� '
S'.
Stre
Sam Characteristic: Regulated .;
ource: Jordan Dani) -i
Date: 1989
Drainage Area (mi2): 4790
Summer 7Q10 (cfs); 791?
Average Flow (cfs): 5676
IWC (%): 3.2
The Fayetteville facility has two main process areas: 1) Butacite and PVB intermediates and 2)
Nafion and perfluoronated intermediates. Currently, both process waste streams go through the
treatment plant and are discharged via Outfall 001. DuPont is proposing to route the Nafion stream
around the waste treatment plant because the only significant pollutant in it is fluoride which is not
removed in the treatment process, so the Nafion stream only constitutes extra hydraulic loading that
lowers retention time in the plant for the treatable PVB waste stream. The Nafion stream would
have to re-enter the Outfa11001 stream prior to the OCPSF sampling and limitation point or such
requirements will have to be applied to it separately.
Only minor changes are recommended for this reng al. Updated application of federal
effluent guidelines will cause a slight reduction of BO��imits for this renewal. TP/TN monitoring
requirement has been shifted to Outfall 002 in order to measure nutrient loading to the river. Please
also note the addition of instream monitoring requirements.
Special Schedule Requirements and additional comments from Reviewer
s
.:;> 4':.r _4'� � E .�..✓..J�_ r J- v'4 m.- _-8n'. 'x '.c" �." •�t � � t,4'A '_ `/ l .... � ,r
a
Recommended by.
Reviewed by
Instream Assessment:
Regional Superv
isor:
Permits at Engineering
RETURN TO TECHNICAL

TOXICS/METALS/CONVENTIONAL PARAMETERS
OUTFALL 001 - Process Wastewater
Existing Limits
Monthly Avg.
Flow (MGD): 2.0
3OD5 (lbs/day): 175.4
TSS (lbs/day): 292.3
DO (mg/l):
pH (SU): 6.0-9.0
Oil & Grease (lbs/day): monitor
TN (mg/1):
monitor
TP (mg/1).
Flow (MGD):
30D5 (lbs/day):
TSS (lbs/day):
DO (mg4):
pH (SU):
Oil & Grease (lbs/day):
OCPSF Parameters:
monitor
Monthly Avg.
2.0
157.5
262.5
Daily Max.
467.7
950.1
6.0-9.0
monitor
See attached list
Daily Max.
420.1
853.3
6.0-9.0
ALL 002 -Non-contact Cooling Water
Existing
Limits
Flow (MGD):
BODS (lbs/day):
COD (lbs/day):
pH (SU):
4ouride (lbs/day):
Temperature (°C)
Flow (MGD):
Fl
BODS (lbs/day):
COD (lbs/day):
pH (SU):
Rouride (lbs/day):
TN (mom)' (fib M 6 0
TP (mg/1).
Temperature (°C)
Monthly Avg. Daily Max.
monitor
I�
monitor quarterly
monitor quarterly
6.0-9.0 6.0-9.0
5000
The temperature of the effluent shall not cause an
increase in the
temperature of the receiving stream of more than 2.8°C and in no case
cause the ambient water temperature to exceed 32°C.
Monthly Avg.
monitor
monitor quarterly
monitor quarterly
6.0-9.0
Daily Max.
6.0-9.0
5000
I�
monitor
monitor
The temperature of the effluent shall not cause an increase in the
temperature of the receiving stream of more than 2.8°C and in no case
cause the ambient water temperature to exceed 32°C.

3
WHOLE EFFLUENT TOXICITY TEST
Type of Toxicity Test: Chronic (Ce�hnia) Quarterlyr/14 @ IWC
Existing Limit: P/F @ 3.3% (applied to combined final outfall)
Recommended Limit: Renew with existing limit.
Monitoring Schedule: Feb., May, Aug., Nov.
Limits Changes Due To•
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Updated application of fed. effluent guidelines X
New pretreatment information
Other (onsite toxicity study, interaction, etc.)
BOD, TSS, OCPSF parameters o� � ���ffyo,
Parameters) are water quality limited. For some parameters, the available load capacity of
the immediate receiving water will be consumed. This may affect future water quality based
effluent limitations for additional dischargers within this portion of the watershed.
X No parameters are water quality limited, but this discharge may affect future allocations.
Upstream Location:
Downstream Location:
U.S. Army Corps Lock
Parameters:
INSTREAM MONITORING REQUIItEMENTS Kom
Prospect Hall Landing
Temperature, Dissolved
Oxygen,
Special instream monitoring locations or monitoring frequencies:
Instream monitoring for fluoride should occur monthly. s (�k A
49&ttz

D
MIS ..I LANFOUS INFORMATION & SPECIAL CONDITIONS
Has the facility demonstratede ability to meet the proposed new limits with existing treatment
facilities? Yes No
If no, which parameters cannot be met?
Would a "phasing in" of the new limits be appropriate? Yes No
If yes, please provide a schedule (and basis for that schedule) with the regional ,
office recommendations:
4
r ,
s
If no, why not?
Wasteload sent to EPA? (Major) Y (Y or N)
(If yes, then attach updated evaluation of facility, including toxics analysis, modeling analysis if
modeled at renewal, and description of how it fits into basinwide plan)
Additional Information attached? Y (Y or N) If yes, explain with attachments.
1. List of OCPSF parameters and limits.
2. Summary of federal effluent Guidelines applied to WLA.
3. Toxicity test fact sheets.

Facility Name
EMS
CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (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 maybe no observable inhibition of reproduction or significant mortality
is % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform
quarter 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
115 F l�\j , AArt a k 1, . Effluent sampling for this testing shall be performed at the NPDES
If
permitted Mial effl�ient 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 TGPI
Additionally, DEM Form AT4 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Environmental Management
4401 Reedy Creek Road
Raleigh, N.C. 27607
Test data shall be complete 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 pemut maybe 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
noncompliance with monitoring requirements.
7Q10 � cfs
Permitted Flow 4� MGD
IWC If 2Z %
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Receiving Stream Pe, r kiI
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