HomeMy WebLinkAbout201706201034January 9, 2004
Mr. Michael E. Johnson, Environmental Manager
DuPont Fluoroproducts
22828 Highway 87 W
Fayetteville, North Carolina 28306-7332
Dear Mr. Johnson:
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
Subject: NPDES Permit Issuance
Permit No. NC0003573
Fayetteville Works
Bladen County
Division personnel have reviewed and approved your application for renewal of the
subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. This
permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1
and the Memorandum of Agreement between North Carolina and the U.S. Environmental
Protection Agency dated May 9, 1994 (or as subsequently amended).
The only significant change present in the final permit is the requirement to post a
warning sign along the wastewater conveyance downstream of the outfall from the wood -lined
ditch. Staff from the Division's Fayetteville Regional Office have observed members of the
public swimming in the channel downstream of the outfall from the ditch. The warning sign is
intended reduce public exposure to wastewater effluent from DuPont's facility. If you have
questions regarding the content of this sign, please direct them to Mr. Paul Rawls of the
Fayetteville Regional Office. This sign should be in place within 30 days of the issuance of this
permit.
Compliance with all terms and conditions of the attached permit is the responsibility
of the Permittee. Please note that T15A 08G .0204 of the North Carolina Administrative Code
has been interpreted to mean that the Operator in Responsible Charge is responsible for
operation of water pollution control systems.
If an
y 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 permit shall be final
and binding.
Please take notice that this permit is not transferable. 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, Coastal Area Management Act,
or any other Federal or Local governmental permits which may be required.
161 7 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-161 7 -TELEPHONE 919-733-5083/FAX 91 9-733-0719
VI51T US ON THE WEB AT http://h2o.enr.state.nc.us/NPDES
Mr. Johnson
DuPont Fayetteville - NCO003573
Page 2
If you have any questions or need additional information, please do not hesitate to
contact Mark McIntire of my staff at (919) 733-5083, extension 508.
Sincerely,
Alan W. Klimek, P.E.
cc: Central Files
NPDES Unit Files
Fayetteville Regional Office
Aquatic Toxicology Unit
EPA Region 4
Permit NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER f,�UALITY
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 & Co.
is hereby authorized to discharge wastewater and stormwater from a facility located at
DuPont Fluorocarbons
NC Highway 87
Duart Township
Bladen County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and N
hereof.
The permit shall become effective February 1, 2004.
This permit and the authorization to discharge shall expire at midnight on October 31, 2006.
Signed this day January 9, 2004.
����� �`�
r����r; �3 ��
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued permit bearing this number is no longer
effective. 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 & Co., Inc.
is hereby authorized to:
1. Continue to operate existing wastewater treatment facilities consisting of:
• equalization;
• neutralization;
• aerated pre -digester tank;
• nutrient feed system,
• aeration tank with Biomixer0;
• dual clarifiers;
• effluent flow measurement;
• DAF unit;
• rotary filter for sludge thickening;
• sludge filter press, and
• steam heated sludge dryers.
2. Discharge treated process wastewater from Butacite, Dymetrol, Nafion, TeflonO PMDF,
and APFO, process stormwater, sanitary wastewater, and co -neutralized regenerate
from said treated facilities through internal outfall 001;
3. Discharge Nafion low -biodegradable wastewater through internal outfall 006;
4. Discharge APFO low -biodegradable wastewater through internal outfall 007;
5. Discharge stormwater, non -contact cooling water, boiler blowdown and condensate,
treated wastewater effluent from 001, and effluent from outfalls 006 and 007 through
outfall 002 at the location specified on the attached map into the Cape Fear River, a
class C water in the Cape Fear River Basin.
DuPont Fayetteville Works - NC0003573
USGS Quad Name: Duart
Receiving Stream: Cape Fear River
Lat.: 34°49'53"
Stream Class: C
Subbasin: Cape Fear - 030616
Long.: 78°49'23"
Location
North Not to SCALE
Permit NC0003573
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 001. Such discharges shall be limited and monitored by the Permittee as specified
below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Avera e
Daily
Maximum
Measurement
Frequency
Sample
e
Sample
Location
Flow (MGD)
2.0
Continuous
Recording
Influent or
Effluent
BOD53 200 C
191.31bs/day
508.2 lbs/day
3/Week
Composite
Effluent
Total Suspended Solids
317.8 lbs/day
10301bs/day
3/Week
Composite
Effluent
Temperature
Weekly
Grab
Effluent
Oil & Grease
Monthly
Grab
Effluent
Chronic Toxicity
See Note 1
Quarterly
Composite
See Note 1
PH
Between 6.0 and 9.0 Standard Units
3/Week
Grab
Effluent
40 CFR 414 Subpart I See Condition A. (2)
NNOW
Notes•
1 Chronic Toxicity (Ceriodaphnia) P/F � 3.3% February, May, August, November; see condition A. (8) of this
permit. The compliance monitoring point for chronic toxicity shall be downstream of the confluence of outfall
001 and 002.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS.
Permit NC0003573
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUBPART I
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 001:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
ihvera O
Daily
Maximum,
Measurement
Fre uenc-v.
` Sample
Type
Sample
Location
Acenaphthene
0.174
0.465
See Note 2
Grab
Effluent
Acenaphthylene
0.174
0.465
See Note 2
Grab
Effluent
Acrylonitrile
0357
1.909
See Note 2
Grab
Effluent
Anthracene
0.174
0.465
See Note 2
Grab
Effluent
Benzene
0.292
1.073
See Note 2
Grab
Effluent
Benzo(a)anthracene
0.174
0.465
See Note 2
Grab
Effluent
3,4-Benzofluoranthene
0.181
0.481
See Note 2
Grab
Effluent
Benzo(k)fluoranthene
0.174
0.465
See Note 2
Grab
Effluent
Benzo(a)pyrene
0.181
0.481
See Note 2
Grab
Effluent
Bis(2-ethylhexyl) phthalate
0.813
2.201
See Note 2
Grab
Effluent
Carbon Tetrachloride
0.142
0.300
See Note 2
Grab
Effluent
Chlorobenzene
0.118
0.221
See Note 2
Grab
Effluent
loroethane
0.821
2.114
See Note 2
Grab
Effluent
loroform
r2-Cblorophenol
0.166
0.363
See Note 2
Grab
Effluent
0.245
0.773
See Note 2
Grab
Effluent
rysene
0.174
0.465
See Note 2
Grab
Effluent
Di -n -butyl phthalate
0.213
0.450
See Note 2
Grab
Effluent
1,2 -Dichlorobenzene
0.608
1.286
See Note 2
Grab
Effluent
1,3 -Dichlorobenzene
0.245
0.347
See Note 2
Grab
Effluent
1,4 -Dichlorobenzene
0.118
0.221
See Note 2
Grab
Effluent
1,1-Dichloroethane
0.174
0.465
See Note 2
Grab
Effluent
1,2-Dichloroethane
0.536
1.665
See Note 2
Grab
Effluent
1,1-Dichloroethylene
0.126
0.197
See Note 2
Grab
Effluent
132-trans-Dichloroethylene
0.166
0.426
See Note 2
Grab
Effluent
2,4-Dichlorophenol
0.308
0,884
See Note 2
Grab
Effluent
1,2-Dichloropropane
1.207
1.815
See Note 2
Grab
Effluent
1,3-Dichloropropylene
0.229
0.347
See Note 2
Grab
Effluent
Diethyl phthalate
0.639
1,602
See Note 2
Grab
Effluent
2,4 -Dimethylphenol
0.142
0.284
See Note 2
Grab
Effluent
Dimethyl phthalate
0.150
0.371
See Note 2
Grab
Effluent
4,6-13initro-o-cresol
0.615
2.185
See Note 2
Grab
Effluent
2,4-Dimtrophenol
0,560
0.970
See Note 2
Grab
Effluent
2,4-Dautsotoluene
0.892
2.249
See Note 2
Grab
Effluent
2,6-Duritrotoluene
2.012
5.057
See Note 2
Grab
Effluent
Ethylbenzene
0,252
0.852
See Note 2
Grab
Effluent
Permit NC0003573
A. (2) SUBPART I REQUIREMENTS (CONTINUED)
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 001:
PARAMETER
EFFLUENT LIMITATIONS
Monthly Daily
Average' Maximum'
MONITORING REQUIREMENTS
-
Measurement Sample Sample
Fre uenc e Location
Fluoranthene
0.197
0.536
See Note 2
Grab
Effluent
Fluorene
0.174
0.465
See Note 2
Grab
Effluent
Hexachlorobenzene
0.5 µg/L
Annually3
Grab
Effluent
Hexachlorobutadiene
0.158
0.387
See Note 2
Grab
Effluent
Hexachloroethane
0.166
0.426
See Note 2
Grab
Effluent
Methyl Chloride
0.679
1.499
See Note 2
Grab
Effluent
Methylene Chloride
0.316
0.702
See Note 2
Grab
Effluent
Naphthalene
0.174
0465
See Note 2
Grab
Effluent
Nitrobenzene
0.213
0.536
See Note 2
Grab
Effluent
2-Nitrophenol
0.323
0.544
See Note 2
Grab
Effluent
4-Nitrophenol
0.568
0.978
See Note 2
Grab
Effluent
Phenanthrene
0.174
0.465
See Note 2
Grab
Effluent
Phenol
0.118
0.205
See Note 2
Grab
Effluent
Pyrene
0.197
0.529
See Note 2
Grab
Effluent
Tetrachloroethylene
0.174
0.442
See Note 2
Grab
Effluent
Toluene
0.205
0.631
See Note 2
Grab
Effluent
1,2,4-Trichlorobenzene
0.536
1.105
See Note 2
Grab
Effluent
1,1,1 -Trichloroethane
0.166
0.426
See Note 2
Grab
Effluent
1,1,2 -Trichloroethane
0.166
0.426
See Note 2
Grab
Effluent
Trichloroethylene
0.166
0.426
See Note 2
Grab
Effluent
Vinyl Chloride
0.821
2.114
See Note 2
Grab
Effluent
Notes
1 All units are lbs/day unless otherwise noted.
2 Monitoring for the specified parameters has been waived based on a demonstration made by the Permittee in
accordance with 40 CFR 122.44(a)(2)(1). This waiver is good only for the term of the permit. Please note that
any exceedence of the effluent limitations found herein shall be considered a permit violation subject to
appropriate enforcement action.
3 A sufficiently sensitive analytical technique shall be employed for determining the presence of
hexachlorobenzene in the effluent.
Permit NC0003573
A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 006 (Nafion® low -biodegradable process wastewaters). Such discharges shall be
limited and monitored by the Permittee as specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Avera e
Daily
Maximum
Measurement
Frequencye.
Sample
Sample -
Location
Flow (MGD)
0.036
Continuous
Recording
Effluent
BODS, 20° C
7.2 lbs/day
19.2 lbs/day
Monthly
Composite
Effluent
Total Suspended Solids
12.0 lbs/day
39.0 lbs/day
Monthly
Composite
Effluent
PH
Between 6,0 and 9.0 Standard Units
3/Week
Grab
Effluent
40 CFR 414 Subpart J See Condition A. (5)
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS.
A. (4)
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Permit NC0003573
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 007 (APFO low -biodegradable process wastewaters). Such discharges shall be
limited and monitored by the Permittee as specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS.
Monthly
Average
Daily
Maximum
Measurement
'Frequency
Sample
e
m
Saple
Location
Flow (T IGD)
0.048
Continuous
Recording
Effluent
BODS, 20° C
18.0 lbs/day
48.0 lbs/day
Monthly
Composite
Effluent
Total Suspended Solids
22.8 lbs/day
73.3 lbs/day
Monthly
Composite
Effluent
pH
Between 6.0 and 9.0 Standard Units
3/Week
Grab
Effluent
40 CFR 414 Subpart J
See Condition A. (6)
THERE SI -TALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS.
Permit NC0003573
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUBPART J
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 006:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Avera el
Daily
Ma)drnunil
Measurement
Frequency
Sample
e
Sample
Location
Acena hthene
p
0.006
0.014
Annually
Grab
Effluent
Acenaphthylene
0.006
0.014
Annually
Grab
Effluent
Acrylonitrile
0.028
0.070
Annually
Grab
Effluent
Anthracene
0.006
0.014
Annually
Grab
Effluent
Benzene
0.017
0.040
Annually
Grab
Effluent
Benzo(a)anthracene
0.006
0.014
Annually
Grab
Effluent
3,4-Benzofluoranthene
0.006
0.014
Annually
Grab
Effluent
Benzo(k)fluoranthene
0.006
0.014
Annually
Grab
Effluent
1
Benzo(a)pyrene
0.006
0.014
Annually
Grab
Effluent
Bis(2-ethylhexyl) phthalate
0.029
0.077
Annually
Grab
Effluent
Carbon Tetrachloride
0.043
0.114
Annually
Grab
Effluent
Chlorobenzene
0.043
0.114
Annually
Grab
Effluent
Chloroethane
0.033
0.089
Annually
Grab
Effluent
Chloroform
0.033
0.098
Annually
Grab
Effluent
Chrysene
0.006
0.014
Annually
Grab
Effluent
Di -n -butyl phthalate
0.006
0.013
Annually
Grab
Effluent
1,2 -Dichlorobenzene
0.059
0.238
Annually
Grab
Effluent
1,3 -Dichlorobenzene
0.043
0.114
Annually
Grab
Effluent
1,4 -Dichlorobenzene
0.043
0.114
Annually
Grab
Effluent
1,1-Dichloroethane
0.007
0.018
Annually
Grab
Effluent
1,2-Dichloroethane
0.054
0.172
Annually
Grab
Effluent
1,1-Dichloroethylene
0.007
0.018
Annually
Grab
Effluent
1,2-trans-Dichloroethylene
0.008
0.020
Annually
Grab
Effluent
1,2-Dichloropropane
0.059
0.238
Annually
Grab
Effluent
1,3-Dichloropropylene
0.059
0.238
Annually
Grab
Effluent
Diethyl phthalate
0.014
0.034
Annually
Grab
Effluent
2,4 -Dimethylphenol
0.006
0.014
Annually
Grab
Effluent
Dimethyl phthalate
0.006
0.014
Annually
Grab
Effluent
4,6-Dimtro-o-cresol
0.023
0.083
Annually
Grab
Effluent
2,4-Dinitrophenol
0.362
1.288
Annually
Grab
Effluent
Ethylbenzene
0.043
0.114
Annually
Grab
Effluent
Fluoranthene
0.007
0.016
Annually
Grab
Effluent
Fluorene
0.006
0.014
Annually
Grab
Effluent
Hexachlorobenzene
0.5 µg/L
Annually
Grab
Effluent
Permit NC0003573
A. (5) SUBPART J REQUIREMENTS (CONTINUED)
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 006:
PARAMETER
-
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS'
Monthly
Avera el
Daily
Maxdmum?-
Measurement
Fre uencType
Sample
Sample
Location
Hexachlorobutadiene
0.043
0.114
Annually
Grab
Effluent
Hexachloroethane
0.059
0.238
Annually
Grab
Effluent
Methyl Chloride
0.033
0.089
Annually
Grab
Effluent
Methylene Chloride
0.011
0.051
Annually
Grab
Effluent
Naphthalene
0.006
0.014
Annually
Grab
Effluent
Nitrobenzene
0.672
1.922
Annually
Grab
Effluent
2-Nitrophenol
0.020
0.069
Annually
Grab
Effluent
0.049
0.173
Annually
Grab
Effluent
r4-Nitrop,henol
anthne
0.006
0.014
Annually
Grab
Effluent
ol
0.006
0.014
Annually
Grab
Effluent
ne
0.006
0.014
Annually
Grab
Effluent
Tetrachloroethylene
0.016
0.049
Annually
Grab
Effluent
Toluene
0.008
0.022
Annually
Grab
Effluent
1,2,4-Trichlorobenzene
0.059
0.238
Annually
Grab
Effluent
1,1,1 -Trichloroethane
0.007
0.018
Annually
Grab
Effluent
1,1,2 -Trichloroethane
0.010
0.038
Annually
Grab
Effluent
Trichloroethylene
0.008
0.021
Annually
Grab
Effluent
Vinyl Chloride 0.029 0.052
Annually
Grab
Effluent
Notes•
1 All units are lbs/day unless otherwise noted.
Should any annual monitori
ng result in detection of any Subpart J parameters, quarterly monitoring will begin
immediately for the detected parameter(s). After four consecutive quarterly samples resulting in non -detection, the
monitoring frequency will revert to annually.
Permit NC0003573
No (6) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUBPART J
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 007:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Montlily
Average'
Daily
Maximum'
Measurement
Frequency
Sample
e
Sample
Location
Acenaphthene
0.008
0.019
Annually
Grab
Effluent
Acenaphthylene
0.008
0.019
Annually
Grab
Effluent
Acrylonitrile
0.038
0.093
Annually
Grab
Effluent
Anthracene
0.008
0.019
Annually
Grab
Effluent
Benzene
0.023
0.054
Annually
Grab
Effluent
Benzo(a)anthracene
0.008
0.019
Annually
Grab
Effluent
3,4-Benzofluoranthene
0.008
0.019
Annually
Grab
Effluent
Benzo(k)fluoranthene
0.008
0.019
Annually
Grab
Effluent
Benzo(a)pyrene
0.008
0.019
Annually
Grab
Effluent
Bis(2-ethylhexyl) phthalate
0.038
0.103
Annually
Grab
Effluent
Carbon Tetrachloride
0.057
0.152
Annually
Grab
Effluent
Chlorobenzene
0.057
0.152
Annually
Grab
Effluent
Chloroethane
0.044
0.118
Annually
Grab
Effluent
Chloroform
0.044
0.130
Annually
Grab
Effluent
Chrysene
0.008
0.019
Annually
Grab
Effluent
Di -n -butyl phthalate
0.008
0.017
Annually
Grab
Effluent
1,2 -Dichlorobenzene
0.078
0.318
Annually
Grab
Effluent
1,3 -Dichlorobenzene
0.057
0.152
Annually
Grab
Effluent
1,4 -Dichlorobenzene
0.057
0.152
Annually
Grab
Effluent
1,1-Dichloroethane
0.009
0.024
Annually
Grab
Effluent
1,2-Dichloroethane
0.072
0.230
Annually
Grab
Effluent
1,1-Dichloroethylene
0.009
0.024
Annually
Grab
Effluent
1,2-trans-Dichloroethylene
0.010
0.026
Annually
Grab
Effluent
1,2-Dichloropropane
0.078
0.318
Annually
Grab
Effluent
1,3-Dicbloropropylene
0.078
0.318
Annually
Grab
Effluent
Diethyl phthalate
0.018
0.045
Annually
Grab
Effluent
2,4 -Dimethylphenol
0.008
0.019
Annually
Grab
Effluent
Dimethyl phthalate
0.008
0.01.9
Annually
Grab
Effluent
4,6-Dinitro-o-cresol
0.031
0.111
Annually
Grab
Effluent
2,4-Dimtrophenol
0.483
1.718
Annually
Grab
Effluent
Ethylbenzene
0.057
0.152
Annually
Grab
Effluent
Fluoranthene
0.009
0.022
Annually
Grab
Effluent
Fluorene
0.008
0,019
Annually
Grab
Effluent
Hexachlorobenzene
0.5 ELg/L
Annually
Grab
Effluent
Permit NC0003573
A. (6) SUBPART J REQUIREMENTS (CONTINUED)
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 007:
PARAMETER
" EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Avera e
Daily
Ma)dmum?
Measurement
Frequency
Sample
e
Sample
Location
Hexachlorobutadiene
0.057
0.152
Annually
Grab
Effluent
Hexachloroethane
0.078
0.318
Annually
Grab
Effluent
Methyl Chloride
0.044
0.118
Annually
Grab
Effluent
Methylene Chloride
0.014
0.068
Annually
Grab
Effluent
Naphthalene
0.008
0.019
Annually
Grab
Effluent
Nitrobenzene
0.896
2.563
Annually
Grab
Effluent
2-Nitrophenol
0.026
0.092
Annually
Grab
Effluent
4-Nitrophenol
0.065
0.231
Annually
Grab
Effluent
Phenanthrene
0.008
0.019
Annually
Grab
Effluent
Phenol
0.008
0.019
Annually
Grab
Effluent
Pyrene
0.008
0.019
Annually
Grab
Effluent
Tetrachloroethylene
0.021
0.066
Annually
Grab
Effluent
luene
0.011
0.030
Annually
Grab
Effluent
,4-Trichlorobenzene
r
0.078
0.318
Annually
Grab
Effluent
,1 -Trichloroethane
0.009
0.024
Annually
Grab
Effluent
,2 -Trichloroethane
0.013
0.051
Annually
Grab
Effluent
Trichloroethylene
0.010
0.028
Annually
Grab
Effluent
Vinyl Chloride 0.039
0.069
Annually
Grab
Effluent
Notes•
1 All units are lbs/day unless otherwise noted.
Should any annual monitori
ng result in detection of any Subpart J parameters, quarterly monitoring will begin
immediately for the detected parameter(s). After four consecutive quarterly samples resulting in non-detectionthe
monitoring frequency will revert to annually. ,
Permit NC0003573
A. (7) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 002 (boiler blowdown, once -through cooling water, treated wastewater from
outfall 001, Naflon low -biodegradable process wastewaters from outfall 006, and APFO low -biodegradable
process wastewater from outfall 007). Such discharges shall be limited and monitored by the Permittee as
specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Freque4cy
Sample
Type
Sample
Location'
Flow (MGD)
Continuous
Recording
Effluent
Temperature, oC
See Note 2
Daily3
Grab
Effluent,
Upstream,
Downstream
BODS, 200 C
Quarterly
Composite
Effluent
COD
Quarterly
Composite
Effluent
Fluorides
79171bs/day
Weekly
Grab
Effluent,
Upstream,
Downstream
Dissolved Oxygen
Weekly
Grab
Upstream,
Downstream
Total Phosphorus
Monthly
Composite
Effluent
Total
(NO2+INO3+TKN en
Monthly
Composite
Effluent
Conductivity
Monthly
Grab
Upstream,
Downstream
pH
Between 6.0 and 9.0 Standard Units
3/Week
Grab
Effluent
Notes:
1 Upstream shall be at the Permittee's river pump station; downstream shall be at the boat ramp approximately
4500 feet downstream at Prospect Hall Landing.
2 The temperature of the effluent shall be such as not to cause an increase in the temperature of the receiving
stream of more than 2.80C and in no case cause the ambient water temperature to exceed 32oC.
3 Daily shall be defined as every day except Saturdays, Sundays, and legal holidays. Instream temperature
sampling shall be conducted weekly.
4 The samples for fluoride shall be taken downstream of the 001 discharge, unless or until, all neutralized
Nafion area streams are discharged entirely into the cooling water outfall, 002. Instream fluoride monitoring
shall be conducted monthly and shall coincide with effluent monitoring.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS.
Permit NC0003573
A. (8) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) — OUTFALL 001
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 3.3%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent
versions. The tests will be performed during the months of February, May, August, and November. Effluent
sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit
limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months
as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998)
or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity
testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR -1) for the months in which tests were performed, using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value, Additionally, DWQ Form AT -3 (original) is to be sent to the
following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the
facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No
Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at
the address cited above.
Should the permittee fail to monitor duri
ng a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the Nort
h Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re- opened and modified to include
alternate monitoring requirements or limits.
NOTE; Failure to achieve test conditions as specified in the cited document, such as minimum contr
ol organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring,
Permit NC0003573
A. (9) RE -OPENER CONDITION
This permit shall be modified, or revoked and reissued to incorporate additional toxicity limitations and
monitoring requirements in the event toxicity testing or other studies conducted on the effluent or receiving
stream indicate that detrimental effects may be expected in the receiving stream as a result of this discharge.
A. (10) BIOCIDE CONDITION
The permittee shall not use any biocide except those approved in conjunction with the permit application. The
permittee shall notify the Director in writing not later than ninety (90) days prior to instituting use of any
additional biocide used in cooling systems which may be toxic to aquatic life other than those previously reported
to the Division of Water Quality. Such notification shall include completion of Biocide Worksheet Form 101 and a
map locating the discharge point and receiving stream.
A. (11) OUTFALL WARNING CONDITION
Within 30 days of the issuance of this permit, the permittee shall post a sign along the wastewater conveyance.
This sign shall include language that indicates the channel to be an industrial wastewater conveyance no
recommended for recreational purposes. This sign shall also provide appropriate DuPont contact information in
the event members of the public have questions or concerns.