DEQ-CFW_00064774

7.54a REti IZ-7n
. oUpQ�IT
ESTAIIISHEfT 02
E. I. DU PONT DE NtmoURS & COMPANY
INCORPORATED
P. O. DRAWER Z
FAYETTEVILLE, N. C. 28302
DEC s W,
DEC 22 1886 /G 1e 7
POLYMER PRODUCTS DEPARTMENT��
� J}
Z ' t
y' ' ' December 15, 1986
ENI!N!. /%,,` , `A _' lMOENT
Mr. P. Paul Wilms, Director a;
Division of Environmental Management tw a
N.C. Dept. of Natural Resources and JAN 5 1987
Community Development
P.O. Box 27687 nEitiMITS & ENGIN-HRit, I
Raleigh, N.C. 27611-7687
Dear Mr. Wilms:
This letter is the official comment of Du Pont - Fayetteville
Works, on the draft permit NPDES No. NC0003573 per your public notice
of November 10.
1. We have no problem with the principal addition to the permit - the
fluoride limit - and agree that both the limit itself and the
analyses frequency are satisfactory.
2. We do see a problem with the monitoring location. The location
currently specified is not proper for determining the fluoride
load. Even though we were given permission to bypass the non-BOD
containing Nafion® streams in the previous permit, this has not
yet been accomplished and, even in the future, outfall 002 may not
include all Nafion® Area fluoride -bearing waste streams. Thus,
the Nafion® Division waste streams (containing all the fluoride
and trifluoroacetate for the plant) currently enter our outfall
via the Biofacilities effluent 001 downstream of the current 002
sampling location and some of these streams may continue to do so
in the future.
We suggest this problem can be rectified by either: 1) designating
another outfall for the combined 001 and 002 outfall or 2) adding
a note on the 002 sheet that "the sample for Fluoride and
Trifluoroacetate (TFA) must be taken downstream of the 001
discharge unless or until all neutralized Nafion® Area streams are
discharged entirely into the cooling water outfall 002".
3. We request relief from the TFA analysis requirement. The major
Nafion® process, HFPO manufacturing, through the basic nature of
the chemistry generates TFA and ionic fluoride in equal mass
quantities. This is usually the major (but not sole) source for
ionic fluoride and only sources for TFA in the Nafion® Area.
Therefore, the TFA load can be approximated from the fluoride
load: TFA, ppd = F-, ppd, - 400.
BETTER THINGS FOR BETTER LIVING
DEQ-CFW 00064774

MR. P. PAUIS WILMS, DIRECTOR -2- DECEMBER 15, 1986
We would not request this relief if the aqueous TFA analysis was
as simple and routine as the fluoride.analysis but TFA is not a
standard water analysis run either on our plant or by local
analytical vendors. (It is a costly and complex non -routine
analysis run occasionally by our central corporate research
facility.)
We know the TFA generation rate locally from standard in -process
GC analyses for the volatile precursor of TFA in process streams,
but the resulting low concentration in waste streams after
by-product scrubbing is not analyzed locally. Therefore, since
TFA is not a truly independent variable and can be approximated
from the fluoride concentration, we feel relief from this
monitoring requirement is reasonable.
4. Since Item (1) of the Supplement to Permit Cover Sheet refers to
outfall 001, we suggest this outfall should be noted
parenthetically as you did with items 2 and 3 for the other
outfalls.
5. Part II, Item F. Toxicity Reopener. Reopener is misspelled.
Also, we suggest the word "and" in the second line be c-hanged to
"and/or" to provide for maximum flexibility on this issue - e.g.
allow for monitoring in the absence of limits.
A check reimbursing the Department for the public notice was sent
to your office on December 9.
TWO:mm
1794M
CC: M.J. Noland
Regional Supervisor
Sincerely "
Thomas Olco t
Environmental Coordinator
919-483-4681
DEQ-CFW 00064775

Permit No. NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF NATURAL RESOURCES & COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
P E_R M I T
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 b Company, Inc.
is hereby authorized to discharge wastewater from a facility located
at
Polymer Products Department
Fayetteville Works
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, and III hereof.
This permit shall be effective
This permit and the authorization to discharge shall expire at
midnight on August 31, 1990
Signed this day of
NOV it 1986 '-
ENV. MANAGEMENT
FAYETTEVILLE REG. OFFICE
a - x
R. Paul Wilms, it ctor
Division of Environmental Management
By Authority of the Environmental
Management Commission
DEQ-CFW 00064776

Permit No. RC0003573
SUPPLEMENT TO PERMIT COVER SHEET
E. I. DuPont de Nemours & Company, Inc.
is hereby authorized to:
1. Continue the operation of the existing 1.1 MGD
wastewater treatment facility consisting of
neutralization, equalization, a nutrient feed system,
an aeration basin, and two clarifiers, and
2. Continue to operate a once through cooling water
system (002) which will receive the "Nafion Area"
wastewater, and
3. Continue to operate a back wash system (003), and
4. Discharge from said facilities into the Cape Fear River
which is classified Class "C" waters in the Cape Fear
River Basin.
DEQ-CFW 00064777

0
m
p
C�
n
�o
0
0
14
-14
00
A. (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the period beginning on the effective date of the permit and lasting until
permittee is authorized to discharge from outfall(s) serial number(s). ooi
expiration,
the
Such discharges shall be limited and
monitored by the
permittee
as specified below:
'fluent Characteristics Discharge
Limitations
Monitoring Requirements
Kg/day (lbs/day)
Daily Avg. DailyMax.
Other Units
Dai y vg.
(Specify)
a ax.
Measurement
Sample
**-Sample
y
requenc
hype
Locat on
Flow
BOD,5Day,20°C 117.5(259) 162.8(359)
1.1 MGD
Continuous
2/Month
Recording
I or E
T94.8(209) 158.8(350)
Tem6mperature
2/Month
Composite
Composite
E
E
Total Phosphorus
r
Weekly
Grab
E ?
Total Nitrogen (NO2 + NO3 + TKN)
Monthly
Composite
E
Monthly
Composite
E
PJ
1
*Sample locations: E - Effluent, I - Influent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
and shall be monitored weekly at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
.-.

0
0
n
n
0
0
0
rn
14
0
A. EFFLUENT LIMITATION AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration,
the permittee is authorized to discharge from outfall(s) serial number(s) 002 (Cooling Water
and Nafion Wastewater) Such discharges shall be limited and monitored by the permittee as
specified below:
Effluent_ Characteristics Discharge Limitations
Monitoring
Requirenents
kg/day (lbs/day) Other Units (Specify)
Daily Avg. Daily Max. Daily Avg. Daily Max.
***Measurement
Frequency
Sample
*Sample
Type
Location
Flow
Continuous
Recording
I or E
Temperature
** **
Daily
Grab
E
BOD, SDay, 20 C
Quarterly
Composite
E
COD
Quarterly
Composite
E
Fluoride
3476(7663) 3476(7663)
Weekly
Composite
E
Trifluoroacetate
Monthly
Composite
E
THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO THE COOLING WATER
*Sample locations: E - Effluent, I - Influent
**The temperature of the effluent shall be such as not to cause an increase in the temperature of then
receiving stream of more than 2.80C and in no case cause the ambient water temperature to exceed 32 C.
***Daily means every day a discharge occurs except for Saturdays, Sundays and legal holidays.
The permittee shall obtain authorization from the Division of Environmental Management.prior
to utilizing any biocide in the cooling water (See Part III of this Permit).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored daily - at the effluent by grab samples
There shall be no discharge of floating solids or visible foam in other than trace amounts.

3
w
0
m
p
n
n
I
0
0
0
rn
14
00
0
A. EFFLUENT LIMITATION AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until exppiration,
the permittee is authorized to discharge from outfall(s) serial number(s) "003 - Back Wash Water
Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations
Monitoring Requirements
kg/day (lbs/day) Ot4er Units (Specify) Measurement Sample *Sample
Daily Avg. Daily Max. Daily Avg. Daily Max. Frequency Q y Type Locatiot
Flow
Total Suspended Solids
Settleable Solids
Turbidity
*Sample locations:
45.0 mg/l
0.2 ml/i
**
E - Effluent, U - Upstream, D - Downstream
Weekly
2/Month
Weekly
Weekly
Instantaneous E
Grab E
Grab E
Grab U,D
**The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU.
If the turbidity exceeds these levels due to natural background conditions, the discharge
level cannot cause any increase in the turbidity in the receiving water.
All samples collected should be of a representative discharge.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be
monitored weekly at the effluent by grab samples
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part III Continued
Permit No. NC0003573
F. Toxicity Repener
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.
G. The permittee shall not use any biocides except these 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.
H. Reopener Condition
This permit shall be modified, or revoked and reissued to
incorporate new effluent limitations in the permit, if the results
of water quality studies or an instream study, reveal the new
effluent limitations are needed to protect the water quality
standards in the receiving stream.
DEQ-CFW 00064781

.� �. JUN 24 i986
MANAGEMENT
of North Carolina FAYTTEVILLE RGOFF ICE
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor
S. Thomas Rhodes, Secretary
Mr-rAoMa5 IV. 0/ram-f�
r. 1)�,,+Aan/✓e
# de lk /5 110J "'o- MC.
F �5i ( -
nL'r_e, i'
,e / to v� NG- a oz
Dear mr 01 C 6+±
This is
R. Paul Wilms
Director
JL11Ae I ? f
Subject: NPDES Permit Application
NPDES Permit No. NC00 0
County
to acknowledge receipt of the following documents on (Q
Application Form,
Engineering Proposal (for proposed control
Request for permit renewal,
Application Processing Fee of $1 6),60 ,
Other )&uueS f- 7 ,- G %lMi 1< Al oc/i_ scti a
facilities),
The items checked below are needed before review can begin:
�,.P' Application form 5., Jar Form (Copy enclosed),
Engineering Proposal See Attachment),
A-1 innftinn Prnnaccina FPP of $
If the applicat
be returned to
you and may be resubmitted when complete.
Qya,
This application has been assigned to samue
(919/733-5083) of our Permits Unit for review. You will b-b advised of
any comments recommendations, questions or other information necessary
for the review of the application.
I am, by copy of this letter, requesting that our Regional Office
Supervisor prepare a staff report and recommendations regarding this
discharge. If you have any questions regarding this application, please
contact the review person listed above.
ipce7,ely,
rthur Mouberry, P.E.
Supervisor, Permits and Engineering
cc:(. I�iC.� N�lcirtc+�
Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer
DEQ-CFW 00064783

Z-544- REV. 12-71,
Qu�)14
10
TA1111N1'J1802
E. I. DU PONT DE NEMOURS & COMPANY
INCORPORATED
P. O. DRAWER Z
FAYETTEVILLE, N. C. 28302
POLYMER PRODUCTS DEPARTMENT
TO: N:C. DEPARTMENT OF NATURAL RESOURCES
NPDES PERMITTING1R (14�tIY
SUBJECT: Notification of production increases from Nafion@ HFPO .
facilities involving NPDES Permit NC 0003573 .for Fayetteville
Works of E.I. Du Pont.
Background
In 1976, discussions were held with the N.C. regulatory
authorities concerning a new fluorocarbon manufacturing facility to be
added to the Fayetteville works of E.I Du Pont located on Route 87 in
$laden County at the Cumberland County line. The outfall from
Fayetteville Works discharges into the Cape Fear River just below the
Corp of Engineers Lock No.3. Subsequently, modified NPDES Permit
MC0003573 was issued on 10/13/33 to cover this disclosure. "
The principal chemical operation involved in the Nafion® Area is
the oxidation of hexafluoropropylene (HFP) to form the
hexafluoropropylene epoxide (HFPO) which is an intermediate for
manufacture. -Of other fluorocarbon chemicals at this site and other
Du Pont sites. The demand on this intermediate principally at other
Du Pont sites now requires a 4.4X expansion of the facility.
Fortunately, much of the major operating equipment including the
facility Waste Gas Scrubber was significantly overdesigned for the
original capacity and major production increases can be obtained with
relatively modest changes - such as column packing, and larger pumps
condensers and instruments - rather than major changes such as larger
vessels and building expansion.
Current Submission
Management Requirements, Part II-A-1, of the NPDES permit dictate
notification of production increases which will increase the level of
two existing pollutants, fluoride and trifluoroacetate, currently not
limited in the existing permit. A review of the last permit
application and subsequent permit indicate that neither relief from
any of the current permit discharge limitations nor changes to the
application information regarding the flows from -the Nafione
Manufacturing operation are needed.
BETTER THINGS FOR SETTER LIVING
DEQ-CFW 00064784

,N.�. DEPARTMENT OF NATURAL RESOURCES
PAGE 2
The increases in the two non —limited pollutants to the outfall are
shown in attachment 1. Toxicity testing shows that concentrations are
not acutely toxic to representative aquatic life even at the
concentration of our undiluted outfall. These toxicological data are
presented in Attachment 2 (previously submitted to Mr. Wilms on 3/7/85
in conjunction with the 1985 permit renewal). The maximum
concentration tested were 1.6 times the outfall fluoride concentration
and 2.5 times the outfall trifluoroacetate concentration. After
mixing with the 7Q10 minimum, the maximum fluoride would only be 10%
of the drinking water standard.
As an additional "housekeeping" item
"Supplement to Permit Cover Sheet" page,
111_1 mgd wastewater treatment facility .
0.5 mgd" and`"a clarifier".
TWO:mm
1665M
concerning the permit, the
Item 1, should indicate a
.. and two clarifiers" not "a
Sincerely
Thomas W. Olcott
Environmental Control
Coordinator
[phone]
DEQ-CFW 00064785

ATTACHMENT I
COMPARATIVE LEVELS - NON -LIMITED POLLUTANTS
CURRENT'PRODUCTION
THIS
APPLICATION
FLUORIDE
TRIFLUOROACETATE
FLUORIDE
TRIFLUOROACETATE
lbs/day 700
350
1900
1500
Outfall Conc., ppm* 12
6
33
26
Max. River Conc. < 0.2
l 0.1
0.4
0.3
@ 7Q10, ppm**
* At 7 million gpd outfall flow
** 859 ft3/sec for Cape Fear River at Bladen-Cumberland County line
per information from Fayetteville Regional Office
TWO:mm
1665M
DEQ-CFW 00064786

ATTACHMENT 2
FOR DU PONT USE; ONLY
E. I. du Pont de Nemours and Co., Inc.
Haskell Laboratory for Toxicology and Industrial Medicine
Elkton Road, P. 0. Box 50,
Newark, Delaware .19714
HASKELL LABORATORY REPORT NO. 522-84 MR NO. 7377-001
Material Tested* Haskell No.
Water, Waste, Fayetteville A-104
Unchlorinated mix
(fjo CoOLt u6- 1. 4?-ra- D/LUTlz/J
52 ppm Fluoride, 65 ppm Trifluoroacetate
Study Initiated/Ccxnnleted
11/12/84-17./1b/84
96-HOUR LC50** TO BLUEGiLL -SUNFISH
SuTmarV-. Unchlorinated Taix wastewater was not acutely toxic to bluegill
sunfish under static, unaerated test conditions during a 96-hour exposure
period.
Objective: To determine the acute toxicity of the test material to a warm
freshwater fish.
Procedure: The test material, in original form, was introduced into
commercial, glass, rectangular 5 1/2-gallon aquaria and diluted with
laboratory well water to yield the desired exposure concentrations in 15
liter final vo1unes. An identical vessel containing only .laboratory well
wafer was designated as the control. '
Stability of the test material in water was not determined because it is
not a critical Eactor in static acute aquatic tests.
- 1 -
DEQ-CFW 00064787

Ten juvenile, unsexed bluegill sunfish (Lepcmis macrochirus) fran Sea
Plantation Inc., Salem, Massachusetts with a 4.1 cm mean standard length
(range 3.3 to 4.5 cm) and 1.25 g mean wet weight (range 0.57 to 1.64 g) were
randomly assigned to each Lest vessel. The fish were in our laboratory for
12 days before being used for this test. Bluegill sunfish are identified by
labeling the culture and test vessels. Fish were not fed for 48 hours prior
to or during the exposure. The test- solutions were riot- aerated and
temperature was maintained at 22°C. Photoperiod was maintained at 16 hours
light: 8 hours dark. Mortality counts and observations were made every 24
hours during the 96-hour exposure period.
Dissolved'oxygen was measured in the control, low, medium, and high test
concentrations at the beginning of the test and at 24-hour intervals during
the 96-hour exposure period. The pH was measured in the control, low,
medium, and high test concentrations at the beginning of 'the' test and at
24-hour intervals during the 96-hour exposure period. Total alkalinity,
hardness (EDTA), and conductivity were measured at the beginning of the test
in the control, low, mediun, and high test concentrations.
JUI records from this test will be maintained at.jaskell Laboratory for
7.bxic01,0gY -Ind 2ndust-rial Medicine or at the Du Pont- Hall -of Records.
Results: Test results far bluegill sunfish are _pressnted in Table 1.
Unchlorinated mix wastewater was not acutely toxic to bluegill sunfish under
static, unaerated test conditions during a 96-hour exposure period.
The chemical and physical parameters measured during the test, reported
in 'Table II, were all within acceptable ranges.
* S non s: Unchlorinated mix wastewater
** L,C54 = The concentration which is lethal to 50% of a test population
during the specified time period.
- 2- -
DEQ-CFW 00064788

Report by: ��G!/(' c_� r /(!1C</
Charles L. Hall
Technician
Approved by I
Study Director:
David G. Hut -ton
Consultant, Envirorunental Sciences
Approved by:
Carol D.-Li Meld
�s�tinn Supervisor, RmYironmental Biology
.CLd3:1�GI3:Cl)L;�CN1:3 td:A�3-3 ('� )
Date Issued: November 29, 1984
Haskell Lab Report No. 522-84
There are 5 pages in this report.
3-
DEQ-CFW 00064789

TABLE I
RESUf;rS OF A 96-HOUR ACUTE 'MXICITY TEST
WITH BLUEGILL SUNFISH EXPOSED TO A-104. (MR 7377-001)
Ncminal Test
Concentrations Observed Mortality (a)
(f) 24 Hr. 48 Hr. 72 Hr. 96 Hr.
100 0 0 0 0
75 0 0 0 0
56 0 0 0 0
42 0 0 0 0
32 0 0 0 0
24 0 0 0 0
18 0 0 0 0
13 0 0 0 0
10 D D D 0
1 fl 0 D 0
0.1 0 0 0 0
D20 Control D 0 D D
DEQ-CFW 00064790

TABLE II
RESULTS OF PHYSICAL, AND CHEMICAL PARAMETERS
MEASURED DURING A
96-HOUR ACUTE
TOXICITY TEST
WITH BLUEGILL SUNFISH
EXPOSED TO A-104. (MR 7377-001)
Nominal Test
100%
420
0.1%
Control
Concentrations
( ) (High)
(Mediun)
(Low)
H2O
`4
Dissolved Oxygen
(mg/L)
0 Hr.
8.2
8.2
8.5
8.8
24 Hr.
7.8
7.7
7.8
7.5
48 Hr.
7.2
7.0
7.0
6.3
72 Hr.
7.0
6.9
6.8
5.8
96 Hr.
6.4
6.4
6.3
5.0
D Hr.
7.5
7.4
7.3
7.2
24 Hr.
7.5
7.4
7.3
7.2
48 Hr.
7.5
7.4
7.3
7.2
72 Hr.
7.5
7.4
7.3
7.2
96 Hr.
7.5
7.4
7.2
7.1
Total Alkalinity
(mg/L as CaCO3-)
D Hr.
.. 120
96
78
8 i
EDTA Hardness (mg/L
as CaCo3
0 Hr.
69
76
73
74
Conductivity (umhos/cm)
0 Hr.
420
273
170
165
- 5 -
r ,
DEQ-CFW 00064791

In
FOR DU PONT USE ONLY
E. I. du Pont de Nemours and Co., Inc,
Haskell Laboratory for Toxicology and Industrial Medicine
Elkton Road, P. 0. Box 50,
Newark, Delaware 19714
HASKELL LABORATORY REPORT NO. 523-84 MR NO. 7377-001
Material Tested Haskell No.
Water, Waste, Fayetteville A-104
Unchlorinat-ed mix \\
(Nb coo,-,,j r WnTra- b uu-jiDN)
52 p m Fluoride, 55 m Trifluoroacetate
Study initiated/Completed
11/13/84-11/15/84
4B-HOUR EC50** TD DAPHNIA MARNA
Su -nu mart': Unchlorinated mix wastewater exhibited very low acute toxicity to
Daphnia magna.under static unaerated test conditions during a 48-hour
exposure period. There was 20% mortality in the 100% waste concentration and
0% mortality in the 75% concentration.
Objective: To det-er►nine the acute toxicity of the test material to a
macroinvertebrate Daphnia magna.
Procedure: The test material, as received was diluted with laboratory mass
culture well water to yield the desired exposure concentrations. After
mixing, 200 mL aliquots of each concentration were introduced into each of
two separate 250 mL glass exposure vessels. Two identical vessels containing
only laboratory ,nass culture water ware designated as controls. Stability of
the test material in water was not determined because it is not a critical
factor in static acute aquatic tests,
DEQ-CFW 00064792

Ton Haskell bred daphnids (Daphnia mayna) less than 2-4 hours old were
randomly assigned to each vessel. Haskell bred daphnids Daphnia inagna are
identified by labeling the culture and test vessels. Food was not provided
during the test-. Test solutions were not aerated and temperature was
maintained between 19.6 and 20.0°C. Photoperiod was maintained at 16 hours
light.-O hours dark.
Immobility counts and observations were made at 24 and 413 hours after t-he
exposure was initiated. Dissolved oxygen and pH were measured in the
controls, low, medium, and high exposure solutions at the beginning, and
after 24 hours, and 48 hours of exposure. The total' alkalinity, hardness
(EDTA), and conductivity of the controls, low, medium, and' high exposure
solutions were if.easured-at- the beginning of t-he exposure.
All raw data and final reports are stored at Haskell Laboratory for
Toxicology and Industrial Medicine, Newark, DE or in the Du* Pont Hall of
Records, Wilmington, DE.
Results; Percent immobilities For Daphnia ma na exposed 1'n unchlorinaLed mix
wastewater are presented in Table I. The 4B-later -C13 Was not calculated
because the result would stmw >100%.
The chemical and physical parameters measured during the test are reported in
Table 11. All 4Yere within accaptable ranges for this study.
*' Synonyms: Unchl.orinat-ed mix wastewater
EC50 = The concentration which causes immobility to 505' of a test
population during the specified time period.
- 2 -
DEQ-CFW 00064793

Report by: -� —..� Lu�&"l�
James W. Wetz 1
Technician
Approved by Study Director:-c-�:•C� .J.�
David G. Flutton
Consultant, Environmental Sciences
Approved by;
Lard D. tohfielri
Section Supervisor, nvironmental Biology
JWW:DGH:CDE:JCW:jtd;AQRP-3(8)
Date Issued: November 29, 1984
Haskell Lab. Report No. 523-84
THERE ARE 5 PAGES IN THIS REPORT.
- 3 -
DEQ-CFW 00064794

r r r r
TABLE 1
RESULTS OF A 48-HOUR ACUTE TOXICITy TEST
WITH DAPHNIA MAGNA EXPOSED TO A-104. (MR 7377-001)
Nominal Test
Observed
Immobility
(90)
Concentrations
24
Hours
48
Hours
(1001)
A*
97
A*
B*
100'-
0
0
40
0
75
0
-0
0
0
56
0
O
0
0
42
0
0
0
0
32
0
0
0
0
24
0
0
0
0
18
0
0
0
0
13
0
0
0
0
10
0
0
D
0
1
0
0
fl
0
0.1
0
D
0
0
t1-.0 Contral
0
D
D
0
RePlicaLa -exposjjre cbamb$v-s -contai-ring 1;en -dapi-fni-ds -tmch.
DEQ-CFW 00064795

TABLE 11 v
RESULTS OF PHYSICAL AND CHEMICAL PARAMETI=RS
MEASURED DURING A 48-HOUR ACUTE TOXICITY TESI*
WITH DAPHNIA MAGNA EXPOSED TO A-104. (MR 7377-001)
Nominal Test
100
24
0.1
Control
Concentrations (%)
(High)
(Medium)
(Low)
H90
Dissolved Oxygen (mg_/L)
0 Hr.
8.1
8.4
8.4
8.6
24 Hr.
7.5
8.2
8.4
8.4
48 Hr.
6.8
7.9
8.2
8.2
ME
D Hr.
7.7
8.4
E.5
B_b
24 Hr.
8.0
8.3
B.4
B_4
48 1-1r .
8.2
8.3
8.2
8.2
Total Alkalinity
(mg/L as CaCO
0 Hr.
435
181
107
110
EDTA Hardness (mg/L
as CaCO
0 Hr.
28
75
90
90
Conductivity (L21ios/cm)
0 Hr.
2200
800
195
190
- 5
DEQ-CFW 00064796

r
Request No. :3335
---------------------- WASTELOAD ALLOCATION APPROVAL FORM ---------------------
Facility Name
Type of Waste
Status
Receiving Stream
Stream Class
Subbasin
County
Regional Office
Requester
Date of Request
Quad
Wasteflow
Fluoride
Temperature
pH
E. I. DUPONT DE NEMOURS & CO.
PIPE 002. INDUSTRIAL
EXISTING
CAPE FEAR RIVER
C
030616
BLADEN
INC I ,
SEP 3 198E
ENV. MANAGEMENT
FAYETTEVILLE REG. OFFICE
FAYETTEVILLE Drainage Area
S. BRIDGES Summer 7010
6-30-86 Winter 7010
H 23 Average Flaw
(sq mi ) :
(cfs) : 819.
(cfs) : 1000.
(cfs) :
-------- RECOMMENDED EFFLUENT LIMITS-------------------------
tmgd) : 11.4 t heat �ir+,fis 4�t T'o� ire Doe_ �
tlbs/day): 7663 I' t oe i.as S rl _ �:rN�t.
(SU): 6-9
:
---------------------------------- COMMENTS ----------------------------------
* THE TEMPERATURIO OF THE EFFLUENT SHALL BE SUCH AS NOT TO CAUSE AN INCREASE
IN THE TEMPERATURE OF THE RECEIVING STREAM OF MORE THAN 2.8 C AND IN NO CASE
CAUSE THE AMBIENT WATER TEMPERATURE TO EXCEED 32 C.
THERE SHALL BE NO CHROMIUM, ZINCP OR COPPEW ADDED TO THE COOLING WATER.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE•FOAM IN OTHER THAN
TRACE AMOUNTS.
FACILITY SHOULD SELF -MONITOR FOR TRIFLUOROACETATE.`
--------------------------------------------------------------------------------
Recommended by
Reviewed by:
Tech. Support Supervisor -
Regional Supervisor
permits & Engineering -----------------------
Date __k' o20__g%
Date
Date
Date
DEQ-CFW 00064797

NPDES WASTE LOAD ALLOCATION
Facility Name:
c
Existing
pLeASe SEe ArTT*�cKAkc--NZS r-e-'P- MoPosFD
AT INcQEASED PRoC,,kcT(onl i0Tox i c_(-rq DATA
?oLU_kTA,%A T
Proposed
Permit Nc).: , MCOID
03573
Pipe
Design Capacity (MGD):
e oN CENT,eA'r' on1S
/I*,--C-0%_(►4C, WA-tER
6 0 Z County:
r
ate
PL.(,�s N�1=tonic W.4S'C�w/�TER
R(,AT)
t . Industrial (.% of Flow) : I U C) Demestic (% of Flow) : U
Receiving Stream: C A PF PEA42- h 1 U EIP- Class: C Sub -Basin: 0 3 - 0 Co - (Co
Reference USGS Quad: _ �' ZJ (Please attach) Requestor : BR (A GILE�s Regional. Office F p- o
SA(A'T PAuIS _
.L C, l "io P
(Guideline limitations, if applicable, are to be listed on the back of this form.)
Design Temp.:
Drainage Area (mil) :
Avg. Streamflow (cfs) :
14
B r `
7010 (cfs)
Winter 7010 (cfs)
30Q2 (cfs)III
Location of D.O.
minimum (miles below outfall):
Slope (fpm)
SEP M 198- =_
Velocity (fps) :
Kl (base e, per day) :
K2 (base e , oer day) :
ENV. MA"NA,-EMENT
WffiffEYIEEE REG. FFICE
Effluent
Characteristics
Nbnthly
Average
Comments
r►
W. C 3 jit
I/
K -
-
(o
i
ii
O T
Effluent g,ontnly
Characteristics
Lverage
Comments
V
S,cL_
cams
wW+t t
cc..
C�rig' V O Comments: T" a �O t •+o Gk �o a•� u »� , ��.� c o r c `/'P� - acppale4' 6a Y`'C.•.Q.�
tion O reel; w•�-t. r ��--;; /�
Co i on of o c� s o+ `Y oil;
so ii cl s s v r s i �e a a�
par BY: Reviewed By: Date:
too ea (Le d-o. re' .

Request No. :3335
----------- WASTELOAD ALLOCATION APPROVAL FORM ---------------------
Facility Name
Type of Waste
Status
Receiving Stream
Stream Class
Subbasin
County
Regional Office
Requestor
Date of Request
Duad
9, It'? a y N
: E. I. DUPONT DE NEMOURS & CO, INC Pik!
: PIPE 002, INDUSTRIAL SEP ���
: EXISTING --- --
: CAPE FEAR RIVER
MANAGEMENT
:C
FAYEKKE%'XLLE���� �������
: 030616 ^~~~~"~~^^.�~
: BLADEN
: FAYETTEVILLE Drainage Area (sq mi) :
: S. BRIDGES Summer 7Q10 (cfs) : 819.
: 6-30-86 Winter 7010 (cfs) : 1000.
: H 23 Average Flow (cfs) :
------------------------- RECOMMENDED EFFLUENT LIMITS -------------------------
Wasteflow
1�7luoride
Temperature
aH ---
�
(mgd): 11.4
(lbs/day): 7663
: *
(SU): 6-9
:
:
:
:
:
:
A
~r� -ae. um1-rs ,P'
Oet
�� toot-
�� ~s
---------------------------------- COMMENTS ----------------------------------
* THE TEMPERATURE OF THE EFFLUENT SHALL BE SUCH AS NOT TO CAUSE AN INCREASE
IN THE TEMPERATURE OF THE RECEIVING STREAM OF MORE THAN 2.8 C AND IN NO CASE
:AUSE THE AMBIENT WATER TEMPERATURE TO EXCEED 32 C.
[HERE SHALL BE NO CHROMIUMv ZINC, OR COPPER ADDED TO THE COOLING WATER.
[HERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE F8AM*IN OTHER THAN
[RACE AMOUNTS.
:* FOR SHOULD SELF -MONITOR Q� TRIFLU0R8ACETATE-
'
-------------------------------------------------------------------------------
Recommended by
Reviewed by:
Tech. Support Supervisor
Regional Supervisor
Permits & Engineering
Date _���_arr-Sun
Date
Date
Date
'

Z_ A-1 REV. 12 711
oUPONT
ESTA;'M.ED 1802
E. I. DU PONT DE NEMOURS & COMPANY
INCORPORATED
P. O. DRAWER Z
FAYETTEVILLE, N. C. 28302
POLYMER PRODUCTS DEPARTMENT
M.J. Noland, Regional Supervisor
N.C. Dept. of Natural Resources
Div. of Environmental Management
Suite 714, Wachovia Bldg.
Fayetteville, NC 28301
Dear Mr. Noland,
August 11, 1986
1 C
t%ZQ
AUG 12 1986 JP
ENV. MANAGEMENT
FAYETTEVILLE REG. OFFICE
As per your request, this note is to inform you that the new
waste treatment clarifier was put on line on August 5 and is operating
very smoothly in parallel with the other clarifier.
TWO:mm
1729M
Sincerely,
Thomas W. Olcott
Environment Control
Coordinator
BETTER THINGS FOR BETTER LIVING
DEQ-CFW 00064800

<-
DMSMW OF ZNVIROKHRML MANAGIMBST
March 20, 1985
MEMORANDUM
TO: Arthur houberry, Head
Permitting and Ungineering Branch
FROMs No J. Noland, Regional SuperviseRIGINAt SIGNED BY
Fayetteville Regional Office �AAR€;;PI J, KLAND
SUBJECT: Authorization to Construct
NPDES Permit No. MC0003573
B. I. DuPont - Fayetteville Works
Bladen County
We have completed our review of the proposal by E. 1. DuPont to con-
struct an additional clarifier and increase the aeration capacity of the
biopond. These changes will not result in an increase of wastewater flow
from this facility, but will enable the facility to more adequately handle
their existing process wastewater flow. On several occasions the plant has
had problems with loss of solids from the existing plant, and these additions
should eliminate this problem.
It is our recosmaendation that an Authorization to Construct be issued
for these additional facilities.
&TS/lcr
DEQ-CFW 00064801

Z-5- REV 12-74
C i . sI
ESTASUS`HED 1802
E. I. DU PONT DE NEMOURS & COMPANY
INCORPORATED
P. O. DRAWER Z
FAYETTEVILLE, N. C. 28302
POLYMER PRODUCTS DEPARTMENT
Arthur C. Mouberry, Permit Branch Head
Division of Environmental Management
Department of Natural Resources
and Community Development
P.O. Box 27687
Raleigh, NC 27611-7687
Dear Mr. Mouberry:
BCC: COVER LETTER AND
DESIGN MEMO ONLY
J.R. BROADWAY
J.E. HAGLE
R.J. MC DONALD
R.A. REICH - L13W42
G.T. ROSENLUND
J.M. STALLINGS - M5625
March 18, 1986
017%- T" n
7
• i SI
vMAR 19 1986
ENV. MA,-':/, .s'r
FAYETTEVILLE Itr'.,. vl rICE
This letter and design package is a request for authorization
to construct an additional clarifier and expand.biopond aeration
capability to the existing activated sludge waste treatment facilities
at Du Pont, Fayetteville Works, NPDES Permit NC0003573. The plant is
located on the northern border of Bladen County on the west bank
plateau of the Cape Fear River.
These additional clarification facilities are needed:
1. to minimize the chances for costly shutdowns of manufacturing
operations which result from clarifier mechanical or operating
problems with our single clarifier at current loads.
2. to provide additional settling time during the periodic sieges of
poor floc settling and also thereby minimize the use of polymers
for solids control.
3. to make Fayetteville Works a more economically competitive site
within the company for manufacturing expansions.
Rather than limit design to the minimum duplication, the
design philosophy used was to provide sufficient capacity to
accomodate any foreseeable expansions in BOD and hydraulic loads.
Therefore, although the same basic standard equipment design was used,
a 10-foot larger diameter Envirex (Rexnord) clarifier and 100 hp of
additional floating aerator capacity were incorporated in addition to
enlarged piping and additional pumping capacity. This provides
significant additional hydraulic and oxidative capacity as defined in
the design summary. (Several plant expansions are currently being
studied but have not developed to the point of applying for permits at
this time.)
DEQ-CFW 00064802

ARTHUS C. MOUBERRY -2- MARCH 17, 1986
The additions were designed by the Du Pont Engineering
t" Department in Wilmington, Delaware, who designed the original plant.
Attached are:
1. A summary memorandum on the design basis.
2. Two arrangement blueprints on the modified plant - W391725S and
W391726.
3. Two piping and instrument blueprints on the modified plant -
W384963 and W588832.
As I mentioned on the telephone last week, we are willing to
provide any assistance necessary to expedite this approval in order to
make the tie-ins in conjunction with a planned manufacturing plant
shutdown in late spring. In addition, we need to proceed on
procurement and ground preparation as soon as possible. We gladly
offer to meet with your engineering review personnel any time at your
convenience in Raleigh if this will speed up the.review process.
In case of any questions or additional needs, call me at
[phone] or, in my absence, contact John Hagle or Russell
Mc Donald at the same number.
Sincerely,
11
Thomas W. Olcott
Environmental Control
Coordinator
TWO:mm
1593M
CC: (Cover letter and design memo only)
MJ`_No'land, Regional'Supervisor
Dept. of Human Resources and
Community Development
Fayetteville, N.C.
DEQ-CFW 00064803

R
DU PONT FAYETTEVILLE PLANT - PROPOSED WASTE TREATMENT EXPANSION
TECHNICAL BASIS
A. Summary
The proposed expansion of the wastewater treatment facilities at the Du Pont
Fayetteville plant will increase the hydraulic and organic load capacity of
the system significantly. The expansion will include increases in aeration
horsepower, addition of a second clarifier, new pumps and additional
piping. A comparison of the existing and future capacity is shown below.
Current
Facilities
Expanded
Facilities
Parameter
Average
Peak
Average
Peak
Flow eration detention
�Cllarifier
1040
1400
1040
1400
(1000 gpd) overflow
820
1100
2060
2780
BODs (lbs/day)
2200
3300
3800
5700
Details on the basis for the facilities sizing are provided in the sections
which follow.
B. BOB Capacity
BOD capacity is dependent upon three items:
1. Aeration capabilities
2. Detention time
3. Reaction rate
In the case of the Fayetteville plant, the first item is the limiting one.
Conservatively, a flow of 1.4 million gpd would be treatable in the existing
aeration basin. This would enable a half -day detention time since the basin
has a volume of 725,000 gallons with 2 ft freeboard:
Volume (ft3) = 1/3 (Al + Az + A� ) h
= 1 /3 (84 X 40 + 136 X 92 + V84 X 40 X 136 X 92 ) 13
= 96,875 ft3 X 7.48
= 725,000 gallons
Reaction rate is essentially expressed as food -to -micro-organism ratio
(F/M). Conservatively, a F/M ratio of 0.25 lbs/day BODS per lb MLSS at
peak BOO loads will provide high quality effluent. Good practice dictates a
maximum MLSS value of 5000 mg/l. This suggests a potential peak BOD
capacity of about 7500 lbs/day:
DEQ-CFW 00064804

`tteville Plant Page 2
z Waste Treatment Expansion
dal Basis
t
MLSS = 5000 mg/l X 0.725 MM gal X 8.34 = 30,200 lbs
;h..._.__ BOD capacity = F/M X MLSS = 0.25 X 30,200 = 7560 lbs/day
The expansion project will increase aeration horsepower from 140 hp to 240
hp. This will be accomplished by changing from 5-20 hp aerators and 1-40 hp
unit to 6-40 hp units.
An analysis of BOB load data and aeration basin DO data for 1984 and 1985
yielded the following information with regard to aerator performance at
Fayetteville. All values selected are based upon worst case performance.
No, standard transfer efficiency: 2.2 lbs Oz/hp-hr
: 0.62
0 . 0.98
Then, actual transfer efficiency is calculated as 1.19 lbs
Oz/hp-hr:.
( (3 CWT - CR ) T-20
N=NOa e
B*0""zo
Where, CW : saturation dissolved oxygen (9.07 mg/l at 20°C)
CR : minimum basin dissolved oxygen (1.0 mg/1)
e : temperature correction factor (1.024)
T : temperature (use 20°C)
N = 2.2 X 0.62 X (0.98 X 9.07 - 1.0) 1.02420-20
9.07
= 1.19 lbs Oz/hp-hr
Therefore, oxygenation capabilities at 140 hp existing and 240 hp proposed
are 3998 and 6854 lbs Oz/day, respectively. Data analysis from 1984 and
1985 showed a relationship between oxygen requirements and BOD reduction of
1.2 lbs Oz/lb BOOS. Current and future BOD capacities are 3330 and
5710 lbs/day, respectively. A historical variability factor of 1.5 gives
average BOD capacities of 2220 and 3810 lbs/day, respectively.
C. Hydraulic Capacity
Flow through a treatment plant is limited by four items:
1. Aeration detention requirements
2. Clarifier overflow rate
3. Pumping capabilities
4. Piping and headloss
DEQ-CFW 00064805

Du Pont Fayetteville Plant
Proposed Waste Treatment Expansion
Technical Basis
Page 3
As explained in Section B, aeration detention limits hydraulic capacity to
1.4 million gpd peak. Historical performance at Fayetteville indicates a
peak/average flow variability factor of 1.35. Thus average flow capacity
would be 1.04 million gpd for aeration.
Ten State Standards* recommends clarifier overflow rates of 700 gpd/ft2
surface area. The existing 45 ft diameter (1590 ft2) clarifier has a
capacity of 1.1 million gpd. This project will add a 55 ft diameter
(2375 ft2) clarifier. Total flow capacity will be 2.78 million gpd.
With the flow variability factor of 1.35, average capacity will be 2.06
million gpd. The additional clarifier capacity will provide surface area
needed during periods of poor settleability and will provide the ability to
operate during maintenance of one of the units.
Two 360 gpm raw wastewater sump pumps will be added to the existing two 360
gpm pumps to give a surge flow capability of 1440 gpm.
Two 830 gpm sludge pumps will be installed in an expanded sludge recycle
pump pit. One -of the two existing 550 gpm sludge pumps will be eliminated.
The remaining 550 gpm pump will serve to recycle sludge from the existing 45
ft diameter clarifier and one 830 gpm pump will serve the new 55 ft diameter
unit. The second 830 gpm pump will serve as an installed spare for either
of the clarifiers. At full rates, the 550 gpm plus 830 gpm recycle pumps
will provide 140% recycle rate at the 1.4 million gpd feed flow capability
discussed in Section B.
The piping modifications shown in the design drawings will accomodate the
feed and recycle flows described above.
* Great Lakes — Upper Mississippi River Board of State Sanitary Engineers,
Recommended Standards for Sewage Works, 1971.
RAR:mm
1585M
DEQ-CFW 00064806

State of North Carolina
Department of Natural Resources and Community Development
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor S. Thomas Rhodes, Secretary
DIVISION OF ENVIRONMENTAL MANAGEMENT
October 4, 1985
Mr. Thomas W. Olcott
E. I. Du Pont de Nemours & Company
PO Drawer Z
Fayetteville, North Carolina 28302
Subject: NPDES Permit No. N00003573
E. I. Du Pont
B laden County
Dear Mr. Olcott:
Per your letter of September 63, 1985, we have reviewed the recently issued
permit on the subject facility. Your observation that the flow rate question
was resolved,in the draft permit is correct. Attached is a revised I3 page reflecting
the permit as it was sent to notice. This page should be inserted into your permit
and the old page discarded.
If you have any questions on this matter, please contact Mr. Arthur Mouberry
at telephone number 919/733-5083.
Sincerely,
ORIGINAL SIGNED BY
ARTHUR MOUBERRY - -
FO�. Paul Wilms
Director
cc: Mr. Jim Patrick, EPA
Fayetteville Regional Supervisor
Compliance
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
DEQ-CFW 00064807

0
m
p
n
�o
0
0
CD
0
CD
A. (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the period beginningon the effective date of the Permit and lasting until
permittee is authorized -to discharge from outfall(s) serial number(s). Ool,expiration, the
Such discharges shall be limited and monitored by the permittee as specified P ied below:
st s Discharge Limitations Monitoring Requirements
K /d lbs/d ) Other Units (Specify) Measurement S
Daily vg.Daily—Max. Daily vg• a y ax. ample Samp1(
j iaw
1.1 MGD
�•5�Y•
�e
Locat (
20oC 117.5(259) 162.8(359)
Continuous
Recording
I or E
US 94.8(209) 158.8(350)
Temperature
2/Month
2/nth
Composite
E
Total Phosphorus
w4ekly
Composite
Grab
E
E
Total Nitrogen (NO2 + NO3 +)
Monthly
Composite
E
Monthly
Composite
E
*Sample locations: E - Effluent, I - Influent
r
The pH shall not be leas than 6.0 standard units nor greater than 9.o standard units
and shall be monitored Veekly at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in
other than trace amounts.
=a
A 0
o�
W C+
N
W 0

Permit No.- NC0003573
g`Z I h% e cas co rre
STATE OF NORTH CAROLINA
DEPARTMENT OF NATURAL. RESOURCES t COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANACEKE*
PERMIT
To Discharge Wastewater Under the NATIONAL
POLLUTANT DISCHARGE ELIMINATION SYSTEK
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 S Company, Inc.
is hereby authorized to discharge wastewater from a facility located at
Polymer Products Department
Fayetteville Works
Bladen County
to receiving waters designated 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, and III hereof.
This permit shall become effective September 1. 1985
This permit and the authorization to discharge aha11 expire at midnight
on August 31, 1990
Signed this day of August 8, 1985
ORIGINAL SIGNED BY
DENNIS R. RAMSEY
FOR
R. Paul Wilus, Director
Division of Envisroomental Management
By Authority of the Environmental
Management Commission
DEQ-CFW 00064809

Permit No. NCO003573
SUPPLEMENT TO PERMIT COVER SHEET
E. I. DuPont de Nemours & Company, Inc.
is hereby authorized to.,
I Continue the operation Of the existin4 0.5 GD izaastewater treatment
facility consisting of neutralization. ' tion a nutrient feed
system, an aeration basin, and a clarifier, and
2. Continue to operate a once through cooling water system (002) which
will receive the 'qWion Area" wastewater, and
3. Continue to operate a back wash system (003), and
4. Discharge from said facilities into the Cape Fear River which is
classified Class "C" waters.
DEQ-CFW-0006481 0

0
m
p
C�
n
I
0
0
0
A. (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the periodbeginningon the effective date of the Permit and lasting until expiration, the
permittee is authorized to discharge from outfall(s) serial number(s).. 00i.
Such discharges shall be limited and monitored by the permittee as specified below:
fluent Characteristics Discharge Limitations Monitoring Requirements
Kg/day. Obs/day) Other Units (Specify) Measurement Sample ** Sample
Daily Avg. Daily max. Daily Avg. Da i l.Y max. -rr quency -ae:- Locate on
Flow 0.6 MGD 1.1 MGD Continuous Recording I or E
20o 1 5 259) 162 8(359) 2/Mo th Co osit E
aoD,SDay9 C 1 7. ( .
TSS 94.8(209) 158.8(350)
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
*Sample locations: E - Effluent, I - Influent
n mp e
2/Month Composite
Wdekly Grab
Monthly Composite
Monthly Composite
E
E
E
E
o+
vo
w.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
and shall be monitored weekly at the effluent by grab sample.
There shall be no discharge of -floating solim or visible foam in other than trace amounts.

a +
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
r
:ram
During the period beginningon the effective date of the Permit and lasting until
expi,r$tio
permittee is authorized to discharge from outfall(s) serial number(s). 002 (Coolt water
Such discharges shall be limited and monitored by the permittee as speci�fted below:
irt.
'fluent Characteristics Discharge Limitations Monitoring, Re4ui, rements y,
_K //dda_y (lbs/day) Other Units (Specify) **Measurerm, m '
Sample ' .*Sample
Daily . Daily Max., Daily Avg. Daily ax, req� "
_R e
Yat on
.:
Flow Continuous
Recording I or E
Temperature * Daily
Grab E
BOD, 5Day, 200C Quarterly
Composite E
COD Quarterly
,lour ite E
THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO THE COOLING WATER.
*The temperature of the effluent shall be such as not to cause an increase in the temperature
of the �ece�iving
stream of more than 2.8°C and in no case cause the ambient water temperature to exceed 32,C.
**Daily means every day a discharge occurs except Saturdays, Sundays and legal holidays
"
***Sample locations: E - Effluent, I - Influent
The permittee shall obtain approval for the continued use of biociets presently being utilized in the co,,o1Aj4
waters from the Division of Environmental Management within 180 days; of the effective date of thic.permit.
C A
W
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
and shall be monitored daily at the effluent by grah sample.
There shall be no discharge of floating solids or visible foam 1p other than trace amounts.
A
V
co
0
0
DI
U
C3
w
0

0
m
p
C�
n
I
0
0
0
rn
00
y
A. ($). EFFLUENT LIMITATION AND MONITORING REQUIREMENTS Back wash water
During the period beginning on the effective date of the permit and lasting until expiration, the
permittee is authorized to discharge from outfall(s) serial number(s) 003. Such discharges shall be
limited and monitored by the permittee a$ specified below:
affluent Characteristics Discharge Limitations Monitoring Requirements
K lda +albs/day).. Other. Units . (S ecif) Measurement Sam le Sample y
Dailyg. �iTy 1Gfax. Da y • , vg. Dally ax. Frequency TypeLocationle
-- ------
Flow Weekly I nstantaneous E
Total Suspended Solids 30 mg/I 45 mg/I 2/Month Grab E
Settleable ' Solids 0.1 ml /I 0.2 ml /I Weekly Grab E
Turbidity * * Weekly Grab E .
* The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity
exceeds these levels due to natural background conditions, the discharge level cause any increase
In utrbidity in the receiving waters.
*
E - Effluent, U - Upstream, D - 6ownstream, E - Effluent
z "a -o
All samples shall be collected during the back wash cycle. -
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be —
monitored weekly at the effluent by grab sample. Z
0
There shall be no discharge of floating solids or visible foam in other than trace amounts.
w
A.
I

Permit No.. NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF NATURAL RESOURCES & COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
P E R M I T
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 & Company, Inc.
is hereby authorized to discharge wastewater from a facility located at
Polymer Products Department
Fayetteville Works
Bladen County
to receiving waters designated 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, and III hereof.
on
This permit shall become effective
This permit and the authorization to discharge shall expire at midnight
Signed this day of
DRA FT
R. Paul Wilms, Director
Division of Environmental Management
By Authority of the Environmental
Management Commission
M1 E Ii
DEQ-CFW 00064814

Permit No. NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
E. I. DuPont de Nemours & Company, Inc.
is hereby authorized to:
1. Continue the operation of the existing wastewater treatment facility
consisting of neutralization, equalization, a nutrient feed system,
a 0.5 MC aeration basin, a clarifier, and
2. Continue to operate a once through cooling water system (002) which
will receive the "Nafion Area" wastewater, and
3. Continue to operate a boiler blowdown system (003), and
4. Discharge from said facilities into the Cape Fear River which is
classified Class "C" waters.
DEQ-CFW 00064815

0
m
p
C�
n
Io
0
0
00
A. (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the period beginningon the effective date of the Permit and lasting until expiration, the
permittee is authorized to discharge from outfall(s) serial number(s). ool.
Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations
Kg/day (lbs/day) Other Units (Specify)
Daily Avg. Daily Max. Daily Avg. Daily Max.
Flow 1.1 MGD
BOD,5Day, 200C 117.5(259) 162.8(359)
TSS 94.8(209) 158.8(350)
Temperature
Total Phosphorus
Total Nitrogen (NO2 + NO3 + TKN)
*Sample locations: E - Effluent, I - Influent
Monitoring Requirements
Measurement
Sample
"Sample
Frequency
Type
Location
Continuous
Recording
I or E
2/Month
Composite
E
2/Month
Composite
E
Weekly
Grab
E
Monthly
Composite
E
Monthly
Composite
E
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
and shall be monitored weekly at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
M

0
m
p
C�
n
0
0
0
rn
CD
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the period beginningon the effective date of the Permit and lasting until expiration,
permittee is authorized to discharge from outfall(s) serial number(s). 002 (cooling water)
Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations Monitoring Requirements
Kg/day (lbs/day) Other Units (Specify) **Measurement Sample ***Sample
Daily Avg. Daily Max. Daily Avg. Daily Max. Frequency Type Location
Flow Continuous Recording I or E
Temperature * Daily Grab E
BOD, 5Day, 200C Quarterly Composite E
COD Quarterly Composite E
THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO THE COOLING WATER.
*The temperature of the effluent shall be such as not to cause an increase in the temperature of the receiving
stream of more than 2.80C and in no case cause the ambient water temperature to exceed 320C.
**Daily means every day a discharge occurs except Saturdays, Sundays and legal holidays
***Sample locations: E - Effluent, I - Influent
The permittee shall obtain approval for the continued use of biocides presently being utilized in the cooling
waters from the Division of Environmental Management within 180 days of the effective date of this permit.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
and shall be monitored daily at the effluent by grah sample.
Th-ere shall be no discharge of floating solids or visible foam in other than trace amounts.
0.

0
m
p
C�
n
0
0
0
0)
CD
A. (3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the period beginning on the effective date of the Permit and lasting until expiration, the
permittee is authorized to discharge from outfall(s) serial number(s). 003. (Boiler Blowdown)
Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations Monitoring Requirements
Kg/day (lbs/day) Other Units (Specify) **Measurement Sample Sample
Daily Avg. Daily Max. Daily Avg. Daily Max. Frequency Type Location
Flow Daily Instantaneous Effluent
Temperature * Daily Grab Effluent.
THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO THE BOILER FEED WATER
*The temperature of the effluent shall be such as not to cause an increase in the temperature of the
receiving stream of more than 2.80C and in no case cause the ambient water temperature to exceed 320C.
**Daily means every day a discharge occurs except: Saturdays, Sundays and legal holidays.
The permittee shall obtain approval for the continued use of biocides presently being utilized in the
boiler feed water from the Division of Environmental Management within 180 days of the effective date
of this permit.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
CD

Part III
Permit No. NC 0003573
A. Previous Permits
All previous State water quality permits issued to this facility,
whether for construction or operation or discharge, are hereby revoked
by issuance of this permit. The conditions, requirements, terms, and
provisions of this permit authorizing discharge under the National
Pollutant Discharge Elimination System governs discharges from this
facility.
B. Construction
No construction of wastewater treatment facilities or additions thereto
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. If no objections to final
plans and specifications have been made by the Division of Environmental
Management within 60 days following acknowledgement that a complete set
of final plans and specifications has been received, the plans may be
considered approved and construction authorized.
C. Certified Operator
Pursuant to Chapter 90A of North Carolina General Statutes, the permittee
shall employ a certified wastewater treatment plant operator in responsible
charge of the wastewater treatment facilities. Such operator must hold a
certification of the grade equivalent to the classification assigned to
the wastewater treatment facilities.
D. Groundwater Monitoring
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.
E. Special Condition
This permit shall be modified, or alternatively, revoked and reissued,
to comply with any applicable effluent standard or limitation issued or
approved under sections 301(b), (2) (C), and (D), 304(b) (2), and 307(a)
(2) of the Clean Water Act, if the effluent standard or limitation so issued
or approved:
Contains different conditions or is otherwise more stringent than
any effluent limitation in the permit, or
Controls any pollutant not limited in the permit.
This permit as modified or reissued under this paragraph shall also contain
any other requirements of the.Act then applicable.
M15 & I12
DEQ-CFW 00064819

Part III Continued
Permit No. NC0003573
D. The permittee shall notify the Director in writing not later than ninety (90)
days prior to instituting use of any additional biocide or chemical used in
cooling systems, other than chlorine, which may be toxic to aquatic life other
than those previously reported to the Division of Environmental Managment.
Such notification shall include:
1. Name and general composition of biocide or chemical,
2. Proposed discharge concentrations,
3. Quantities to be used,
4. Frequencies of use, and
5. Aquatic toxicity data on the biocide or chemical.
DEQ-CFW 00064820

f
DIVISION OF ENVIRONMENTAL MANAGEMENT
March 15, 1985
M E M O R A N D U M
TO: Arthur Mouberry, Unit Supervisor
Permitting and Engineering Unit
FROM: M. J. Noland, Regional Supervisor
Fayetteville Regional Office
SUBJECT: E. I. DuPont Nemours & Company
NPDES Permit No. (NCO003573
Permit Renewal
Fayetteville Plant
Please find attached a copy of the Fayetteville Regional Office's June
7, 1984 staff report and the original staff report (per your request) regarding
NPDES Permit Renewal (No. NC0003573) for the E. I. DuPont Company located in
Bladen County. Also, find attached various memorandus concerning modifications
to the Company's Draft Permit.
The Company has submitted a proposal (see attached) to Mr. Wilms, requesting
that a process waste stream from the Nafion Area of this complex be directed
directly into the cooling water outfall (002) instead of the wastewater being
routed through the plant's biotreatment wastewater facility.
According to Mr. Thomas W. Olcott, Environmental Control Coordinator, treat-
ment of the Nafion Area wastewater is essentially unaffected in the biological
treatment plant due to its inorganic characteristics. Also, operating quality
and outfall quality would not be affected should redirection be allowed. Mr.
Olcott advises that the potassium fluoride and fluorinated organic salts in the
wastewater going into the biological waste facility are non -biodegradable, and
will eventually reside in the generated sludge. Future proposals for land applying
this sludge make the removal of this wastewater stream desirable in that this would
eliminate inorganic fluoride from the wastewater treatment plant sludge.
The redirection flow into the cooling water ditch which eventually combines
with the treatment plant discharge and flows into the Cape Fear River is a better
alternative for the Company and the change would not result in any increase in
oxygen demand or toxicity in the effluent. There is no stream standard for fluoride.
The Company has provided technical information to support their request.
DEQ-CFW 00064821

r Memo to'Arthur Mouberry
Page 2
Based on the information in the attachment and verbal conversations with
Mr. Olcott, the alternative appears reasonable. It is recommended that the
permit be modified to include this change along with monitoring for BOD and
COD on a quarterly basis.
If additional information or clarification is needed, please advise. A
toxicity screen to verify the overall discharge from DuPont will be scheduled.
GD/gc X)
Attachments
DEQ-CFW 00064822

--------------------- WASTELOAD ALLOCATION APPROVAL FORM _--------------------
Facility Name
F.I. DUP5NT--FAYFTTEVTLiE
PLANT
Type Of Waste
lNDUSTRTAL
Receiving Stream
CAPE FEAR R7VFR
�'�r'00 '
Stream Class
C
���`.-L� /
Subbasin
�
030616
County
�
8LADEN
=~~" in a
Regional Office
FAYETTEVIKE
Reouestor
DOUG FINAN
ENV. yAA,"W:-WAQNT
Drainage Area ( so mi )
FAYETT["V{/[E R�G. C),7|C-E
7010 (cfs)
700
Winter 7Q10 (cfs)
�
30Q2 (cfs)
�
------- ---------------------
RECOMMFNDFD FFFLUFNT LIM7TS
--------------------------
Wasteflnw (mod)
5-Day BOD
259 359
PH (Su)
6-9
T S S 0b�,/d
209 350
---'----------------- ---------------- COMMFNTS -----------------------------------
LIMITS ARE SAME AS THOSE PREVIOUSLY ASSIGNED WITH THE FXCEPT7ON OF
WASTEFLOW WHICH INCREASED FROM 0^5 TO 1^1 MOD.
FACILITY IS : PROPOSED ( ) FXISTING (10) NFW ( )
LIMITS ARE : REVISION (nW CONFIRMATION ( ) OF THOSE PREVIOUSLY ISSUED
RECOMMENDED BY: DATE/XIAI--
�
REVIEWED BY:
SUPERVISOR, TECH. SUPPORT DATE �-�y-���
_
' �7���
REGIONAL SUPERVISOR 1��������_� DATE � �£�� � _���^-� ------- '� ��w- --
Apppoval is ( ) preliminary ( ) final
PERMITS MANAGER �--_---_--_------------DATE �.-----_---

E. I. DU PONT DE NEMOURS & COMPANY
INCORPORATED
P. O. DRAWER Z
FAYETTEVILLE, N. C. 28302
MER PRODUCT`_: DEPARTMIENT
Robert F. Helms, Director
Division of Environmental Management
N.C. Department of Natural Resources,
and Community Development
P.O. Box 27687
Raleigh, N.C. 27611-7687
Dear Mr. Helms:
V[LLE REa OFFICE
November 12, 1984
The comments in this letter represent Du Pont's response to
the draft water discharge permit for the Fayetteville Works in Bladen
County, NPDES No. NC0003573. Although we have only one serious
problem with the permit as written - the imposition of a restrictive
average flow rate - several other recommended modifications are also
discussed below.
Flow Rate Limitation - Outfall 001
We feel and previously recommended that mass -based effluent limits
are invariant and therefore should be used in regulating discharges,
particularly effluent limited discharges. With an effluent limited
discharge, flow limits are unnecessary on this basis because exceeding
the hydraulic and/or oxidative capacity of the plant will result in
exceeding the mass -based discharge limits.
Operational data of the past few months confirm design
capacity and show that this plant has operated for significant time
periods well above the 0.5 million gallons/day average flow limit
shown and maintained excellent quality with 99% BOD reduction and good
clarity. This higher average flow will continue and we expect to soon
exceed the 0.5 million gallons/day average flow limit. This was
anticipated in the original application where an average flow estimate
of 0.6 million gallons/day was declared.
The BOD load of 259 lbs/day average - 359 lbs/day maximum and
TSS load of 209 lbs/day average - 350 lbs/day maximum, calculated on
the basis of the 0.5 million gallons/day flow and the concentrations
shown, are acceptable mass limits to us regardless of flow.
Therefore, we are requesting relief for an overly restrictive flow
limit only and are not requesting any relaxation in contaminant
discharge by our recommendation.
There's a world of things we're doing something about
DEQ-CFW 00064825

Robert F. Helms -2- November 12, 1984
If the Department feels a flow limitation is required to
reflect a design capacity of the treatment facilities, virtually all
standards for clarification are expressed in maximum, not average,
flow. We suggest a 1.1 million gallon/day maximum flow would be
appropriate on the basis of clarifier hydraulic capacity and aeration
detention time for Fayetteville Works biotreatment facilities. This
is based on comparisons to Recommended Standards for Sewage Works,
1971, by the Great Lakes - Upper Mississippi River Board of State
Sanitary Engineers for plants in the flow range of 0.5 to 1.5 million
gallons/day.
Upper -Downstream Sampling
a
Several of the river quality samples have been eliminated.
However, dissolved oxygen, temperature and pH analyses upstream and
downstream are still required in the draft permit. In an effluent
limited plant, we see no technical reason to continue analyzing for
these parameters. Monitoring of the effluent alone should be
sufficient to characterize our discharge and ten years of historical
data upstream and downstream characterize the Cape Fear River at our
discharge location and clearly show the insignificant effect of our
discharge on these river parameters. All analyses are done by a
contractor and we wish to minimize this effort to only those analyses
necessary and meaningful for characterizing the effluent and
monitoring our performance.
TKN and Ammonia
In an effluent limited plant with only added nutrient
nitrogen (ammonia) in the influent, the infrequent TKN and ammonia
analyses appear superfluous and we suggest eliminating.
"Boiler Plate" Provisions
Under 40 CFR 122.44(c), a reopener clause to incorporate
effluent limitations guidelines is only required for permits issued on
or before June 30, 1981. Therefore, the reopener stated in paragraph
E is not necessary and we recommend it be deleted.
In addition, we recommend that all "boiler plate" language
should conform to EPA regulations presented in Vol. 49 of the Federal
Register, page 37998-38076, issued September 26, 1984.
Minor Corrections
• In both the public notice and permit cover page, the Du Pont
Department is referred to as Plactics Products and Resins. The
name has been changed since issuance of the last permit to Polymer
Products Department.
• The Supplement to Permit Cover Sheet, item 1, indicates continued
operation of the disinfection facilities. Our understanding is
that the elimination of coliform monitoring permits shutdown of
the chlorination facilities and the words "disinfection
facilities" should be removed from item 1.
DEQ-CFW 00064826

Robert F. Helms -2- November 12, 1984
I thank you for considering these matters. I would be happy
to discuss any of these issues or answer any questions you may have at
your convenience.
TWO:mm
0819M
CC: M.J. Noland,
Regional Supervisor
Sincerely,
Thomas W. Olcott
Environmental Control Coordinator
(919)-483-4681
DEQ-CFW 00064827

DIVISION OF ENVIRONMENTAL MANAGEMENT
October 24, 1984
MEMORANDUM
TO: Dave Adkins
Permitting and Engineering Unit
FROM: M. J. Noland, RegionalVal
�{14AL SIGNED BY,
Fayetteville Regional OfON J. NOLAND
SUBJECT: E. I. DuPont deNemours and Company, Inc.
(Permit No. NC0O03573) Draft Modifications
Bladen County
An additional discharge location (003) should be included for approxi-
mately 20,000 gpd of blowdown water.from a water treatment plant used for
once through cooling Water. This water is pumped to lagoons and has the
potential to discharge. At the present time there is .no discharge from the
lagoons due to evaporation, but the discharge potential does exist. The
DuPont Wastewater Treatment facility currently producea;a quality effluent,
however, due to production increases, the .5 MGD flow parameter is in
jeopardy of being in violation. In a letter dated.December 10, 1981 (see_
attached letter), the DuPont Company advised this office that an increase
of process wastewater to the treatment facility would occur in'the near
future as the result of the addition of a new proces (nafion area) to the
complex. The application that accompanied.the letter indicated that as the
result of this new process effluent discharge point 001 (Biotreatment Effluent)
should have a flow of 600,000 gallons/day. When the permit was renewed in
1981 the .5 MGD flow parameter was. retained. Since DuPont consistently pro-
duces a quality effluent and had earlier requested a -flow increase,-it.is the
recommendation of this office that the flow parameter for NCO0O3573 be in-
creased from .5 MGD to .6 MGD on the Effluent Limitations and Monitoring
Requirements Page for discharge 001.
DuPont also requests that the effluent parameters be changed to reflect
poundage instead of concentrations. This office has.nO problem, with this
request.
Should you have any questions, please advise.
GD/gc
Attachment
DEQ-CFW 00064828

Permit No,. NC 0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF NATURAL RESOURCES & COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
P E R M I T
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 & Company, Inc:
is hereby authorized to discharge wastewater from a facility located at
Plastic Products and Resins Department
Fayetteville Works
Bladen County
to receiving waters designated 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, and III hereof.
This permit shall become effective
This permit and the authorization to discharge shall expire at midnight
on
Signed this day of
DRAF1
Robert F. Helms, Director
Division of Environmental Management
By Authority of the Environmental
Management Commission
M1 I
DEQ-CFW 00064829

Permit No. NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
E. I. DuPont de Nemours & Company, Inc.
is hereby authorized to:
1. Continue the operation of the existing wastewater treatment
facility (001) consisting of neutralization, equalization,
a nutrient feed system, a 0.5 MG aeration basin, a clarifier,
and _-qn , and
2. Continue to operate a once through cooling water system (002),
and
3. Discharge from said facilities into the Cape Fear River which is
classified "C" waters.
DEQ-CFW 00064830

...
W
A. (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the period beginning on the effective date of the Permit and lasting until expiration, the
permittee is authorized to discharge from outfall(s) serial number(s). 001.
Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations Monitoring Requirements
Kg/day (lbs/day)
Other Units
(Specify)
Measurement
Sample
**Sample
Daily Avg. Daily Max.
Daily Avg.
Daily Max.
Frequency
Type
Location
Flow
0.50 MGD
Continuous
Recording
I or E
BOD, 5Day, 200C
62 mg/l
86 mg/1
Weekly
Composite
E
Quarterly
Composite
E
NH3 as N
TSS
50 mg/l
84 mg/l
2/Month
Composite
E
Settleable Matter
Daily
Grab
E
Weekly
Grab
U,D
Dissolved Oxygen
Weekly
Composite
E
COD
Monthly
Composite
E
TON
*Daily means every day on which a wastewater.discharge occurs except Saturdays,
Sundays, and legal
holidays.
**Sample locations:
I -,Influent, E - Effluent, U - Upstream, D - Downstream
c-)
fD ca
o
o
-s
g (+
.
W
In
C+
0
W
O
m
p
n
The pH shall not be less than
6.0 standard units no greater than 9.0 standard units
,o
and shall be monitored daily
at the effluent by grab sample.
0
There shall be no discharge of floating solids or visible foam in other than trace amounts.
W

w
0
m
p
C�
n
�o
0
0
0)
00
W
N
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
During the period beginning on the effective date of the Permit and lasting until expiration, the
permittee is authorized to discharge from outfall(s) serial number(s).002 (Cooling Water)
Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics Discharge Limitations Monitoring Requirements
Kg/day (lbs/day) Other Units (Specify) **Measurement Sample ***Sample
Daily Avg. Daily Max. Daily Avg. Daily Max. Frequency Type Location
Flow
Temperature
Continuous Recording I or E1
* Daily Grab E,U,ll
THERE SHALL BE NO CHROMIUM; ZINC, OR COPPER ADDED TO THE COOLING WATER.
*The temperature of the effluent shall be such as not to cause an increase in the Temperature of the receiving
- stream of more than 2.80C and in no case cause the ambient water temperature to exceed 320C.
**Daily means every day a discharge occurs except Saturdays, Sundays and legal holidays. Daily stream sampling
may be reduced to one (1) time per week except during the months of June, July, August and September when the
frequency must be no less than three (3) times per week at each sampling location.
***Sample locations: I - Influent, E - Effluent, U - Upstream, D - Downstream
The permittee shall obtain approval for the continued use of biocides presently being utilized in the cooling
waters from the Division of Environmental Management within 180 days of the effective date of this permit.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units
and shall be monitored daily at the E,U,D by grab samples.
There sha11 be no discharge of floating solids or visible foam in other than trace amounts.
z -v
o
o
01.
w c+
� z
w o

Permit No. NC0003573
A. Previous Permits
All previous State water quality permits issued to this facility,
whether for construction or operation or discharge, are hereby revoked
by issuance of this permit. The conditions, requirements, terms, and
provisions of this permit authorizing discharge under the National
Pollutant Discharge Elimination System governs discharges from this
facility.
B. Construction
No construction of wastewater treatment facilities or additions thereto
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. If no objections to Final
Plans and Specifications has been made by the Division of Environmental
Management after 30 days following receipt of the plans or issuance of
this permit, whichever is latter, the plans may be considered approved
and construction authorized.
C. Certified Operator
Pursuant to Chapter 90A of North Carolina General Statutes, the permittee
shall employ a certified wastewater treatment plant operator in responsible
charge of the wastewater treatment facilities. Such operator must hold a. -
certification of the grade equivalent to the classification:m3ssigned to
the wastewater treatment facilities.
D. The permittee shall notify the Director in writing not later than ninety (90)
days prior to instituting use of any additional biocide or chemical used in
cooling systems, other than chlorine, which may be toxic to aquatic life other
than those previously reported to the Division of Environmental Management.
Such notification shall include:
1. Name and general composition of biocide or chemical,
2. Proposed discharge concentrations,
3. Quantities to be used,
4. Frequencies of use, and -
5. Aquatic toxicity data on the biocide or chemical. -
E. This permit shall be modified, or alternatively, revoked and.reissued,.to.. _
comply with any applicable effluent standard or limitation issued or approved
under Sections 302(b)(2)(C), and (D), 304(b) (2), and 307(a)(2) of the Clean
Water Act, if the effluent standard or limitationso issued or approved:.
(1) contains different conditions or is otherwise more stringent
than any effluent limitation in the permit; or
�2) control any pollutant not limited in the permit.
The permit as modified or reissued under this paragraph shall also contain any
other requirements of the Act then_-
:applicable
DEQ-CFW 00064833

SUMMARY
DuPont's XPDE3 Permit (No. NC0003513) *%piked on June 30, 1982. The
company has not exceeded production parameters of the former permit, and the
new Federal Guidelines are mot finalized at this time for the Organic Chemicals
and Plastics and 8ynthethic'Fibers Category. For these reasons., it is the
recommendation of this office that, the DuPont permit be reissued based on
the previous staff report and effluent .limitations (see attached) Should
the -.new guidelines be more stringent than existing effluent limits, then the
new guidelines will govern and the`' appropriate corrections made, at that time.
The appropriate reopener clause should be included. An'expiration date of
December.31, 1985 is recommended. February, 1985,is the projected date -,for
the establishment of effluent guidelines.
DuPont's Wastewater treatment plant consistently produces a good quality
effluentwhich is discharged into the Cape Fear River, Class C. The effluent
quality is shown in the attached computer printout of DMR data for the period:
March 1983 - April 1984.
This facilities'. effluent limitations should be evaluated by the Technical
Services Branch for the following conditions to deterwine if they will protect
water quality. standards..
1. With Jordan Reservoir, without Rockfish Creek,
2. With Jordan Reservoir, with Rockfish; Creek (6 MOD)
3. With Jordan Reservoir, with Rockfish Creek (12 MGD)
There is also the possibility.that''the Monsanto,discharge.12.3 MOD) will
interact.
A static bioassay screen was run on the plant's effluent in January 1983
and it was determined that...there was no appreciable toxicity associated with
this discharge.
It iq recommended that this -permit be reissued with the following changes:
1. lWopener clause
2. On page A(2)o002, Cooling Water, Effluent Monitoring Requirements
page, the 92 F (daily average) and 106 F (daily maximum),.temperature
parameter should be deleted. The ambient stream standard statement
should be sufficient.
3. The ammonia limitation A(l) O01, Proces{s.Vater, Effluent Monitoring
Requirements page, should be deletedr, however, this should be
monitored. It is our opinion based upon an evaluation done by the
Technical Services Branch that water quality standards can be pro
tooted without having at limit on.MH3-N.
DEQ-CFW 00064835

DIVISION OF INTIROUNWAL MANAMOXT
June 7, '19$4
N1.t0RANDUM
TOt Da" Atkins$' Perrpits & Eugif Bering
Water Quality Section
ORIGINAL S(C,,44D BY
FR*1 M. J.. Nolaind, RegionalSuperviv%RIQN J. NOLAND
Fayetteville Regional Office
SVWECTi Waste Load Allocation Requ40t
E. I DuPont Ds Nemour* b CMpany
Payettsvilla Plant
B.Xeden County
FayetheviZle. North Carolina
The ftftut "MU Parmit (NC0003573) expired on June 30, 1982 and this
office has reecmended that this per.it be reissued with the same effluent
parameters ;until the new- guidelines are prormlgatod. - Tt is requested the
following lluitations be deleted from the permitif they are not necessary
to protect: `vattr qualit't
(2) r cal Coliform, (001)
(3) Amwnia (061)
Ail. discharges "Hera" into the Cape Year River Clas-s C. Also, approxi
mat:ely 20,OW;APD of bXowdoma hater, from a wager treateent,plant: should have
a separate discharke location (003).
It,is the request of this -office that a new waste load allocation be
initiated for the Du$out facility. Please remind Tech S.o rviess of the
proposed Rockfish Creek punt (6 AG' initial, 12 MW" future) to determine
any interaction of waste streams.
If you have any further questions, please advise.
DEQ-CFW 00064837