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Home My WebLink AboutDEQp00021901- I 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 Biomixer@; • 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, Teflon@ 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. t ,, ,x.> ez c cap t x104w NZ •�. "'�-'m.,�-. tri.."' � �, x r r` i. .r � :. 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(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 Average Daily Maximum Measurement Frequency Sample Type Sample Location Flow (NlGD) 2.0 Continuous Recording Influent or Effluent BODS, 20° C 191.3 lbs/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 Tonicity 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) 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 MONI1`ORINd 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 Average' Daily Maximum' Measurement Fre uenc Sample a Sample Location Acenaphthene 0.174 0.465 See Note 2 Grab Effluent Acenaphthylene 0.174 0.465 See Note 2 Grab Effluent Acrylonitrile 0.757 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 Chloroethane 0.821 2.114 See Note 2 Grab Effluent Chloroform 0.166 0.363 See Note 2 Grab Effluent 2 -Chlorophenol 0.245 0.773 See Note 2 Grab Effluent Chrysene 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 1,2-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-Dinitro-o-cresol 0.615 2.185 See Note 2 Grab Effluent 2,4-Dinitrophenol 0.560 0.970 See Note 2 Grab Effluent 2,4-Dinitrotoluene 0.892 2.249 See Note 2 Grab Effluent 2,6-Dinitrotoluene 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 MONITORING REQUIREMENTS Monthly Average' Daily Maximum' Measurement Frequency Sample e Sample 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 0.465 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)(i). 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 (Nation® low -biodegradable process wastewaters). Such discharges shall be limited and monitored by the Permittee as specified below: PARAMETER EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Monthly Daily Average Maximum Measurement Sample Sample Frequency e Location Flow (NIGD) 0.036 Continuous Recording Effluent BOD5j 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. - Permit NC0003573 A. (4) 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 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 Daily Aver e Maximum Measurement Sample Sample Frequency e Location Flow (MGD) 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 T 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 SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS. C U i i l i ti i Pen -nit NC0003573 A. (5) 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 Average' Daily Maximum' Measurement Frequency Sample a Sample Location Acenaphthene 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 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-Dinitro-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 Average' Daily Maximuml Measurement Frequency Sample e 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 4-Nitrophenol 0.049 0.173 Annually Grab Effluent Phenanthrene 0.006 0.014 Annually Grab Effluent Phenol 0.006 0.014 Annually Grab Effluent Pyrene 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 monitoring 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 A. (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 Monthly Average' Daily Maximuml Measurement Frequency Sample a 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-Dichloropropylene 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-Dinitrophenol 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 0.5Itg/L Annually Grab Effluent 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 Average' Daily Maximuml 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 Toluene 0.011 0.030 Annually Grab Effluent 1,2,4-Trichlorobenzene 0.078 0.318 Annually Grab Effluent 1,1,1 -Trichloroethane 0.009 0.024 Annually Grab Effluent 1,1,2 -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 monitoring 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 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, Nafion 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: Notes: I 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 2.8oC and in no case cause the ambient water temperature to exceed 320C. 3 Daily shall be defined as every day except Saturdays, Sundays, and legal holidays. lnstream 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. EFFLUENT LIMITATIONS MONITORING REQUIREMENTS PARAMETER Monthly Daily Measurement Sample Sample Average Maximum Fre uenc e Location' Flow (MGD) Continuous Recording Effluent Effluent, Temperature, OC See Note 2 Daily3 Grab Upstream, Downstream BOD;, 20° C Quarterly Composite Effluent COD Quarterly Composite Effluent Effluent, Fluoride{ 7917lbs/day Weekly Grab Upstream, Downstream Dissolved Oxygen Weekly Grab Upstream, Downstream Total Phosphorus Monthly Composite Effluent Total Nitrogen Monthly onthly Composite Effluent Conductivity Monthly Grab Upstream, Downstream pH Between 6.0 and 9.0 Standard Units 3/Week f Grab I Effluent Notes: I 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 2.8oC and in no case cause the ambient water temperature to exceed 320C. 3 Daily shall be defined as every day except Saturdays, Sundays, and legal holidays. lnstream 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 TGP313 for the pass/fail results and THP313 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 during 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 North 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 control 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. NPDES Permit Requirements Page 1 of 16 PART II STANDARD CONDITIONS FOR NPDES PERMITS Section A. Definitions 2/Month Samples are collected twice per month with at least ten calendar days between sampling events. 3/Week Samples are collected three times per week on three separate calendar days. Act or "the Act" The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC 1251, et. seq. Annual Average The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In. the case of fecal coliform, the geometric mean of such discharges. Arithmetic Mean The summation of the individual values divided by the number of individual values. Bypass The known diversion of waste streams from any portion of a treatment facility including the collection system, which is not a designed or established or operating mode for the facility. Calendar Day The period from midnight of one day until midnight of the next day. However, for purposes of this permit, anv consecutive 24-hour period that reasonably represents the calendar day may be used for sampling. Calendar Quarter One of the following distinct periods: January through March, April through June, July through September, and October through December. Composite Sample A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 ml in such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval between grab samples, etc.) on a case-by-case basis. Samples may be collected manually or automatically. Composite samples may be obtained by the following methods: (1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow. (2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period of discharge and combined proportional to the rate of flow measured at the time of individual sample collection, or (3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at the treatment system, or (4) Constant time/constant volume: a series of grab samplgs of equal volume collected over a 24-hour period at a constant time interval. This method 44 only ,be- used in situations where effluent flow rates vary less than 15 percent. The grab samples shall be taken at intervals of no greater than 20 minutes apart during any 24-hour period and must be of equal size and of no less than 100 milliliters. Use of this method requires prior approval by the Director. Version 612012003 NPDES Permit Requirements Page 2 of 16 In accordance with (4) above, influent grab samples shall not be collected more than once per hour. Effluent grab samples shall not be collected more than once per hour except at wastewater treatment systems having a detention time of greater than 24 hours. In such cases, effluent grab samples may be collected at intervals evenly spaced over the 24-hour period that are equal in number of hours to the detention time of the system in number of days. However, the interval between effluent grab samples may not exceed six hours not the number of samples less than four during a 24-hour sampling period. Continuous flow measurement Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance activities on the flow device. Daily Discharge The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as the total mass of the pollutant discharged over the day. The "daily discharge" concentration comprises the mean concentration for a 24-hour sampling period as either a composite sample concentration or the arithmetic mean of all grab samples collected during that period. (40 CFR 122.3) Daily Maximum The highest "daily discharge" during the calendar month. DOy Sampling Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the permit. The Division expects that sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that requirement will be so noted on the Effluent Limitations and Monitoring Page(s). DWQ or "the Division" The Division of Water Quality, Department of Environment and Natural Resources. EMC The North Carolina Environmental Management Commission. Facility Closure The cessation of wastewater treatment at a permitted facility, or the cessation of all activities that require coverage under the NPDES. Completion of facility closure will allow this permit to be rescinded. Geometric Mean The Nth root of the product of the individual values where N = the number of individual values. For purposes of calculating the geometric mean, values of "0" (or "< (detection level]") shall be considered = 1. Grab Sample Individual samples of at least 100 ml collected over a period of time not exceeding 15 minutes. Grab samples can be collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream samples). Hazardous Substance Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the Clean Water Act. Instantaneous flow measurement A measure of flow taken at the time of sampling, when both the sample and flow will be representative of the total discharge. Version 6/20/2003 NPDES Permit Requirements Page 3 of 16 Monthly Average (concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal coliform, the geometric mean of such discharges. Permit Issuing Authority The Director of the Division of Water Quality. Quarterly Average (concentration limit) The average of all samples taken over a calendar quarter. Severe property damage Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage excludes economic loss caused by delays in production. Toxic Pollutant: Any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act. Upset An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. Weekly Average (concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal coliform, the geometric mean of such discharges. Section B. General Conditions 1. Duty to Comply The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or denial of a permit renewal application [40 CFR 122.41]. a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the Clean Water Act for toxic pollutants and with standards for sewage sludge use or disposal established under section 405(d) of the Clean Water Act within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the requirement. b. The Clean Water Act provides that any person who violates section 301, 302, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any such sections in a permit issued under section 402, or any requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is subject to a civil penalty not to exceed $25,000 per day for each violation. [40 CFR 122.41 (a) (2)] The Clean Water Act provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or 402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by imprisonment of not more than 2 years, or both. [40 CFR 122.41 (a) (2)] Version 6/20/2003 NPDES Permit Requirements Page 4 of 16 d. Any person who knomin,gly violates such sections, or such conditions or limitations is subject to criminal penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both. [40 CFR 122.41 (a) (2)] e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and who knows at that time that he thereby places another person in imminent danger of death or serious bodily injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than 15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to $2,000,000 for second or subsequent convictions. [40 CFR 122.41 (a) (2)] f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North Carolina General Statutes § 143-215.6A] g. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302, 306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections in a pemut issued under section 402 of this Act. Administrative penalties for Class I violations are not to exceed $10,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed $25,000. Penalties for Class II violations are not to exceed $10,000 per day for each day during which the violation continues, with the maximum amount of any Class II penalty not to exceed $125,000. [40 CFR 122.41 (a) (3)] 2. Dui to Mitigate The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit which has a reasonable likelihood of adversely affecting human health or the environment [40 CFR 122.41 (d)]. 3. Civil and Criminal Liability Except as provided in permit conditions on "Bypassing" (Part II. C. 4), "Upsets" (Part II. C. 5) and "Power Failures" (Part II. C. 7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 4. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143- 215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. Property Rights The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations [40 CFR 122.41 (g)]. Onshore or Offshore Construction This permit does not authorize or approve the construction of any onshore or offshore physical structures or facilities or the undertaking of any work in any navigable waters. Version 6/20/2003 NPDES Permit Requirements Page 5 of 16 7. Severability The provisions of this permit are severable. If any provision of this permit, or the application of any provision of this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the remainder of this permit, shall not be affected thereby [NCGS 150B-23]. 8. Duty to Provide Information The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41 (h)]. 9. Duty to Really If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the Permittee must apply for and obtain a new permit [40 CFR 122.41 (b)]. 10. Expiration of Permit The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required by the agency authorized to issue permits no later than 180 days prior to the expiration date. Any Permittee that has not requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq. 11. Signr atory Requirements All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40 CFR 122.41 (k)]. a. All permit applications shall be signed as follows: (1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures . (2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or (3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking elected official [40 CFR 122.22]. b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be signed by a person described in paragraph a. above or by a duly authorized representative of that person. A person is a duly authorized representative only if: 1. The authorization is made in writing by a person described above; 2. The authorization specified either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or well field, superintendent, a position ®`tegtfii�alerii' responsibility, or, an individual or position having overall responsibility for environmental matters for the cd' anj.' Cil duly authorized representative may thus be either a named individual or any individual occupying a named position.); and 3. The written authorization is submitted to" the 'Permit'Issuing Authority [40 CFR 122.22] Version 6/20/2003 NPDES Permit Requirements Page 6 of 16 Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or together with any reports, information, or applications to be signed by an authorized representative [40 CFR 122.22] d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following certification [40 CFR 122.22]: "Y certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. " 12. Permit Actions This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not stay any permit condition [40 CFR 122.41 (f)]. 13. Permit Modification. Revocation and Reissuance, or Termination The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina Administrative Code, Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et. al. 14. Annual Administering and Compliance Monitoring Fee Requirements The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 2H.0105 (b) (4) may cause this Division to initiate action to revoke the permit. Section C. Operation and Maintenance of Pollution Controls Certified Operator Upon classification of the permitted facility by the Certification Commission, the Permittee shall employ a certified water pollution control treatment system operator in responsible charge (ORC) of the water pollution control treatment system. Such operator must hold a certification of the grade equivalent to or greater than the classification assigned to the water pollution control treatment system by the Certification Commission. The Permittee must also employ one or more certified Back-up ORCs who possess a currently valid certificate of the type of the system. Back-up ORCs must possess a grade equal to (or no more than one grade less than) the grade of the system [15A NCAC 8G.02011. The ORC of each Class I facility must: . ➢ Visit the facility at least weekly ➢ Comply with all other conditions of 15A NCAC 8G.0204. The ORC of each Class 11, 111 and IV facility must: ➢ Visit the facility at least daily, excluding weekends and holidays ➢ Properly manage and document daily operation and maintenance of the facility ➢ Comply with all other conditions of 15A NCAC 8G.0204. Once the facility is classified, the Permittee shall submit a letter to the Certification Commission designating the operator in responsible charge: a. Within 60 calendar days prior to wastewater being introduced into a new system Version 6/20/2003 NPDES Permit Requirements Page 7 of 16 b. Within 120 calendar days of: ➢ Receiving notification of a change in the classification of the system requiring the designation of a new ORC and back-up ORC ➢ A vacancy in the position of ORC or back-up ORC. 2. Proper Operation and Maintenance The Permittee shall at all times provide the operation and maintenance resources necessary to operate the existing facilities at optimum efficiency. The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41 (e)]. 3. Need to Halt or Reduce not a Defense It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41 (c)] 4. ftpassing of Treatment Facilities a. Bypass not exceeding limitations [40 CFR 122.41 (m) (2)] The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provisions of Paragraphs b. and c. of this section. Notice [40 CFR 122.41 (m) (3)] 0) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice, if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality and effect of the bypass. (2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part II. E. 6. (24-hour notice). c. Prohibition of Bypass (1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for bypass, unless: (A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage; (B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance; and (C) The Permittee submitted notices as required under Paragraph b. of this section. (2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for a bypass as provided in any current or future system -wide collection system permit associated with the treatment facility. (3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c. 0) of this section. 5. Upsets a. Effect of an upset [40 CFR 122.41 (n) (2)]: An upset constitutes an affirmative defense to an action brought for noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of this condition are met. No determination made during administrative review of claims that Version 612012003 NPDES Permit Requirements Page 8 of 16 noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review. b. Conditions necessary for a demonstration of upset: A Permittee who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant evidence that: (1) An upset occurred and that the Permittee can identify the cause(s) of the upset; (2) The Permittee facility was at the time being properly operated; and (3) The Permittee submitted notice of the upset as required in Part II. E. 6. (b) (B) of this permit. (4) The Permittee complied with any remedial measures required under Part lI. B. 2. of this permit. d. Burden of proof [40 CFR 122.41 (n) (4)]: The Permittee seeking to establish the occurrence of an upset has the burden of proof in any enforcement proceeding. 6. Removed Substances Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant from such materials from entering waters of the State or navigable waters of the United States. The Permittee shall comply with all existing Federal regulations governing the disposal of sewage sludge. Upon promulgation of 40 CFR Part 503, any permit issued by the Permit Issuing Authority for the utilization/disposal of sludge may be reopened and modified, or revoked and reissued, to incorporate applicable requirements at 40 CFR 503. The Permittee shall comply with applicable 40 CFR 503 Standards for the Use and Disposal of Sewage Sludge (when promulgated) within the time provided in the regulation, even if the permit is not modified to incorporate the requirement. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use or disposal practices. Power Failures The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 2H.0124 — Reliability) to prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means of alternate power sources, standby generators or retention of inadequately treated effluent. Section D. Monitoring and Records Representative Sampling Samples collected and measurements taken, as required herein, shall be characteristic of the volume and nature of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is characteristic of the discharge over the entire period the sample represents. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit Issuing Authority [40 CFR 122.41 (j)]. 2. Reporting Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a monthly Discharge Monitoring Report (DMR) Form (MR 1, 1.1, 2, 3) or alternative forms approved by the Director, postmarked no later than the 28th day following the completed reporting period. The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Duplicate signed copies of these, and all other reports required herein, shall be submitted to the following address: NC DENR / Division of Water Quality / Water Quality Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Version 6/20/2003 NPDES Permit Requirements Pate 9 of 16 3. Flow Measurements Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. The Director shall approve the flow measurement device and monitoring location prior to installation. Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of this permit and based on the manufacturer's pump curves shall not be subject to this requirement. 4. Test Procedures Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS 143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section 304(8), 33 USC 1314, of the Federal Water Pollution Control Act (as Amended), and 40 CFR 136; or in the case of sludge use or disposal, approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been specified in this permit [40 CFR 122.41]. To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection and reporting levels that are below the permit discharge requirements and all data generated must be reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are determined capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most sensitive (method with the lowest possible detection and reporting level) approved method must be used. 5. Penalties for Tampering The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a conviction of a person is for a violation committed after a first conviction of such person under this paragraph, punishment is a fine of not more than $20,0,00 per day of violation, or by imprisonment of not more than 4 years, or both [40 CFR 122.411. 6. Records Retention Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR 503), the Permittee shall retain records of all monitoring information, including: ➢ all calibration and maintenance records ➢ all original strip chart recordings for continuous monitoring instrumentation ➢ copies of all reports required by this permit ➢ copies of all data used to complete the application for this permit These records or copies shall be maintained for a period of at least 3 years from the date of the sample, measurement, report or application. This period may be extended by request of the Director at any time [40 CFR 122.41]. Recording Results For each measurement or sample taken pursuant to. the requirements of this permit, the Permittee shall record the following information [40 CFR 122.41]: t -It < i . a. The date, exact place, and time of sampling or measurements; b. The individual(s) who performed the sampling or measurements; c. The date(s) analyses were performed; d. The individual(s) who performed the analyses; Version 6/20/2003 NPDES Permit Requirements ' Page 10 of 16 e. The analytical techniques or methods used; and f. The results of such analyses. 8. Inspection and EnIU The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as a representative of the Director), upon the presentation of credentials and other documents as may be required by law, to; a. Enter upon the Permittee's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this permit; b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit; c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this permit; and d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise authorized by the Clean Water Act, any substances or parameters at any location [40 CFR 122.41 (i)]. Section E Reporting Requirements 1. Change in Discharge All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute a violation of the permit. 2. Planned Changes The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions to the permitted facility [40 CFR 122.41 (1)]. Notice is required only when: a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR 122.29 (b); or b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to notification requirements under 40 CFR 122.42 (a) 0). c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and such alternation, addition or change may justify the application of permit conditions that are different from or absent in the existing permit, including notification of additional use or disposal sites not reported during the permit application process or not reported pursuant to an approved land application plan. 3. 'Anticipated Noncompliance The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other activities that might result in noncompliance with the permit [40 CFR 122.410) (2)]. 4. Transfers This permit is not transferable to any person except after notice to the Director. The Director may require modification or revocation and reissuance of the permit to document the change of ownership. Any such action may incorporate other requirements as may be necessary under the Clean Water Act [40 CFR 122.41 (1) (3)]. 5. Monitorin�Reports Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.410) (4)]. a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part Il. D. 2) or forms provided by the Director for reporting results of monitoring of sludge use or disposal practices. b. If the Permittee monitors any pollutant more frequently than required by this permit, the results of such monitoring shall be included in the calculation and reporting of the data submitted on the DMR. Version 6/20/2003 NPDES Permit Requirements Page 11 of 16 6. Twenty-four flour Reporting a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that potentially threatens public health or the environment. Any information shall be provided orally within 24 hours from the time the Permittee became aware of the circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40 CFR 122.410) (6)]. b. The Director may waive the written report on a case-by-case basis for reports under this section if the oral report has been received within 24 hours. c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response personnel at (800) 662-7956, (800) 858-0368 or (919) 733-3300. 7. Other Noncompliance The Permittee shall report all instances of noncompliance not reported under Part Il. E. 5 and 6. of this permit at the time monitoring reports are submitted. The reports shall contain the information listed in Part H. E. 6. of this permit [40 CFR 122.41 (t) (7)]. 8. Other Information Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or information [40 CFR 122.410) (8)]. Noncompliance Notification The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge digester; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to receiving waters without treatment of all or any portion of the influent to such station or facility. Persons reporting such occurrences by telephone shall also file a written report within 5 days following first knowledge of the occurrence. 10. Availability of Reports Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices of the Division of Water Quality. As required by the Act, effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-215.1 (b)(2) or in Section 309 of the Federal Act. 11. Penalties for Falsification of Reports tiv '1 �► `i t The Clean Water Act provides that any person who knowingly makes any false statement, representation, or certification in any record or other document submitted or required to be'maintained under this permit, including monitoring reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of Version 6/20/2003 NPDES Permit Requirements Page 12 of 16 not more than $25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41]. 12. Annual Performance Reports Permittees who own or operate facilities that collect or treat municipal or domestic waste shall provide an annual report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.1 C). The report shall summarize the performance of the collection or treatment system, as well as the extent to which the facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality. The report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon which annual period is used for evaluation. PART III OTHER REQUIREMENTS Section A. Construction The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment capacity, nor change the treatment process(es) utilized at the treatment plant unless the Division has issued an Authorization to Construct (AtC) permit. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been submitted by the Permittee and approved by the Division. Section B. Groundwater Monitoring The Permittee shall, upon written notice from the Director of the Division of Water Quality, conduct groundwater monitoring as may be required to determine the compliance of this NPDES permitted facility with the current groundwater standards. Section C. Changes in Discharges of Toxic Substances The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42): a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels"; (1) One hundred micrograms per liter 000 µg/L); (2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per liter (500 µg/L) for 2.4-dinitrophenol and for 2-methyl-4.6-dinitrophenol; and one milligram per liter P mg/L) for antimony; (3) Five times the maximum concentration value reported for that pollutant in the permit application. b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels"; (1) Five hundred micrograms per liter (500 µg/L); (2) One milligram per liter 0 mg/L) for antimony; (3) Ten times the maximum concentration value reported for that pollutant in the permit application. Section D. Evaluation of Wastewater Discharge Alternatives The Permittee shall evaluate all wastewater disposal alternatives and pursue the most environmentally sound alternative of the reasonably cost effective alternatives. If the facility is in substantial non-compliance with the terms and conditions of the NPDES permit or governing rules, regulations or laws, the Permittee shall submit a report in such form and detail as required by the Division evaluating these alternatives and a plan of action within 60 days of notification by the Division. Section E. Facility Closure Requirements The Pernuttee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered by this permit. The Division may require specific measures during deactivation of the system to prevent Version 6/20/2003 NPDES Permit Requirements Page 13 of 16 adverse impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the permitted facility. PART IV SPECIAL CONDITIONS FOR MUNCIPAL FACILITIES Section A. Publicly Owned Treatment Works (POTWs) All POTNVs must provide adequate notice to the Director of the following. 1. Any new introduction of pollutants into the POTW from an indirect discharger which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants; and 2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as influent to that POTW at the time of issuance of the permit. 3. For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of. effluent introduced into the POTW, and (2) any anticipated impact of the change on the quantity or quality of effluent to be discharged from the POTW. Section B. Municipal Control of Pollutants from Industrial Users. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from industries using the municipal system may be present in the Permittee's discharge. At such time as sufficient information becomes available to establish limitations for such pollutants, this permit may be revised to specify effluent limitations for any or all of such other pollutants in accordance with best practicable technology or water quality standards. 2. Under no circumstances shall the Permittee allow introduction of the following wastes in the waste treatment system: a. Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test methods specified in 40 CFR 261.21; b. Pollutants which will cause corrosive structural damage to the POTW, but in no case Discharges with pH lower than 5.0, unless the works is specifically designed to accommodate such Discharges; C. Solid or viscous pollutants in amounts which will cause obstruction to the flow in the POTW resulting in Interference; d. Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a Discharge at a flow rate and/or pollutant concentration which will cause Interference with the POW; e. Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C (104°F) unless the Division, upon request of the POTW, approves alternate temperature limits; f. Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or pass through; g. Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; h. Any trucked or hauled pollutants, except at discharge points designated by the POTNV. 3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding some or all �qf the industries discharging to the municipal system. 4. The Permittee shall require any industrial discharges sending influent to the permitted system to meet Federal Pretreatment Standards promulgated in response to Section 307(b) of the Act. Prior to accepting wastewater from any significant industrial user, the Permittee shall either develop and submit to the Version 6/20/2003 NPDES Permit Requirements Page 14 of 16 Division a Pretreatment Program for approval per 15A NCAC 2H .0907(a) or modify an existing Pretreatment Program per 15A NCAC 2H .0907(b). This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program as required under Section 402(b)(8) of the Clean Water Act and implementing regulations or by the requirements of the approved State pretreatment program, as appropriate. Section C. Pretreatment Programs Under authority of sections 307(b) and (c) and 402(b)(8) of the Clean Water Act and implementing regulations 40 CFR Part 403, North Carolina General Statute 143-215.3 (14) and implementing regulations 15A NCAC 2H .0900, and in accordance with the approved pretreatment program, all provisions and regulations contained and referenced in the Pretreatment Program Submittal are an enforceable part of this permit. The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the Clean Water Act, the Federal Pretreatment Regulations 40 CFR Part 403, the State Pretreatment Regulations 15A NCAC 2H .0900, and the legal authorities, policies, procedures, and financial provisions .contained in its pretreatment program submission and Division approved modifications there of. Such operation shall include but is not limited to the implementation of the following conditions and requirements: 1. Sewer Use Ordinance (SUO) The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. 2. Industrial Waste Survey(IWS) The Permittee shall update its Industrial Waste Survey (IWS) to include all users of the sewer collection system at least once every five years. 3. Monitoring Plan The Permittee shall implement a Division approved Monitoring Plan for the collection of facility specific data to be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Part II, Section D, and Section E.5.). 4. Headworks Analysis (HWA) and Local Limits The Permittee shall obtain Division approval of a Headworks Analysis (HWA) at least once every five years, and as required by the Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an updated HWA or documentation of why one is not needed) (40 CFR 122.42]. The Permittee shall develop, in accordance with 40 CFR 403.5(c) and 15A NCAC 2H.0909, specific Local Limits to implement the prohibitions listed in 40 CFR 403.5(a) and (b) and 15A NCAC 2H .0909. 5. Industrial User Pretreatment Permits (IUP)& Allocation Tables In accordance with NCGS 143-215.1, the Permittee shall issue to all significant industrial users, permits for operation of pretreatment equipment and discharge to the Permittee's treatment works. These permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special conditions, and compliance schedules as necessary for the installation of treatment and control technologies to assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The Permittee shall maintain a current Allocation Table (AT) which summarizes the results of the Headworks Analysis (HWA) and the limits from all Industrial User Pretreatment Permits (IUP). Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as determined by the HWA. Version 6/20/2003 NPDES Permit Requirements Page 15 of 16 Authorization to Construct (A to Q The Permittee shall ensure that an Authorization to Construct permit (AtC) is issued to all applicable industrial users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all Industrial User Pretreatment Permit (IUP) limitations. POTW Inspection & Monitoring of their SIUs The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division approved pretreatment program in order to determine, independent of information supplied by industrial users, compliance with applicable pretreatment standards. The Permittee must: a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year; and b. Sample all Significant Industrial Users (SIUs) at least twice per calendar year for all permit - limited pollutants, once during the period from January 1 through June 30 and once during the period from July 1 through December 31, except for organic compounds which shall be sampled once per calendar year; 8. SIU Self Monitoring and Reporting The Permittee shall require all industrial users to comply with the applicable monitoring and reporting requirements outlined in the Division approved pretreatment program, the industry's pretreatment permit, or in 15A NCAC 2H.0908. Enforcement Response Plan (ERP The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards promulgated pursuant to section 307(b) and (c) of the Clean Water Act (40 CFR 405 et. seq.), prohibitive discharge standards as set forth in 40 CFR 403.5 and 15A NCAC 2H .0909, and specific local limitations. All enforcement actions shall be consistent with the Enforcement Response Plan (ERP) approved by the Division. 10. Pretreatment Annual ReportsAR) The Permittee shall report to the Division in accordance with 15A NCAC 2H .0908. In lieu of submitting annual reports, Modified Pretreatment Programs developed under 15A NCAC 2H .0904 (b) may be required to meet with Division personnel periodically to discuss enforcement of pretreatment requirements and other pretreatment implementation issues. For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report (PAR) describing its pretreatment activities over the previous twelve months to the Division at the following address: NC DENR / DWQ / Pretreatment Unit 1617 Mail Service Center Raleigh, NC 27699-1617 These reports shall be submitted according to a schedule established by the Director and shall contain the following. a.) Narrative A brief discussion of reasons for, status of, and actions taken for all Significant Industrial Users (SIUs) in Significant Non -Compliance (SNC); b.) Pretreatment Program Summary (PPS) A pretreatment program summary (PPS) on specific forms approved by the Division; c.) Significant Non -Compliance Rep ort (SNC$1 The nature of the violations,afid tlfe'A�iions taken or proposed to correct the violations on specific forms approved by the Division; d.) Industrial Data Summate Forms (IDSQ .4 - Version 6/20/2003 NPDES Permit Requirements Page 16 of 16 Monitoring data from samples collected by both the POTW and the Significant Industrial User (SIU). These analytical results must be reported on Industrial Data Summary Forms (IDSF) or other specific format approved by the Division; e.) Other Information Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of SIUs in SNC, and any other information, upon request, which in the opinion of the Director is needed to determine compliance with the pretreatment implementation requirements of this permit; 11. Public Notice The Permittee shall publish annually a list of Significant Industrial Users (SIUs) that were in Significant Non -Compliance (SNC) as defined in the Permittee's Division approved Sewer Use Ordinance with applicable pretreatment requirements and standards during the previous twelve month period. This list shall be published within four months of the applicable twelve-month period. 12. Record Keeping The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with support information including general records, water quality records, and records of industrial impact on the POTW. 13. Funding and Financial Report The Permittee shall maintain adequate funding and staffing levels to accomplish the objectives of its approved pretreatment program. 14. Modification to Pretreatment Programs Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a permit modification and shall be governed by 15 NCAC 2H .0114 and 15A NCAC 2H.0907. Version 6/20/2003 DuPont - Fayetteville Works Sludge Management Plan NPDES Permit No. NC0003573 ATTACHMENT 1 The DuPont — Fayetteville Works operates a Class 3 Wastewater Treatment Plant that is comprised of a single -stage activated sludge biological system. Excess sludge is removed from the system by diverting part of the Recycled Activated Sludge (at approximately 0.6% solids) from the clarifiers to a Dissolved Air Floatation (DAF) unit for initial thickening. The sludge from the DAF (at approximately 3% solids) is transferred to a Mix Tank where polymer agents are added to enhance the dewatering process. The semi -thickened sludge is transferred from the Mix Tank to a Rotary Filter for final thickening, whereby the sludge is thickened to 6% solids. The thickened sludge is then transferred to a Screw Press where it is dewatered to a concentration of 9-20% solids. Following the Screw Press, the sludge is dried in steam heated dryers to a concentration of 40% - 55% solids. On the average, the weekly quantity of generated dried sludge is 13,000 lb. The dried, non -hazardous sludge is transported off-site to a commercial Subtitle D landfill. This sludge is currently being disposed of at the Waste Industries' Sampson County Landfill near Roseboro, NC. ��J '11 i1R a r' DuPont - Fayetteville Works NPDES Permit No. NCO003573 Potential Facility Changes ' APFO Manufacturing: The DuPont— Fayetteville Works has been tentatively identified as the location for the DuPontT'�' APFO manufacturing process. This process will produce ammonium perfluorooctanoate (APFO), CAS No. 3825-26-1, an essential raw material for the DuPontTM TeflonO fluoropolymer resins business. The manufacturing unit will be located either near the existing DymetrolO manufacturing building or near the Nafion® area's Vinyl Ethers South manufacturing building. APFO is recognized by DuPont and others as a biopersistent compound, meaning it remains in the body or environment for extended periods of time after exposure. Due in part to APFO's biopersistence, DuPont, alone and in collaboration with others, has made considerable investment into studying potential health effects of APFO. DuPont's medical surveillance of its own employees and epidemiological data from others in industry support its conclusion that APFO does not pose a health concern to humans or animals at levels present in the workplace or !A environment. DuPont has used APFO for more than forty years with no observed health effects in workers. ' APFO is used in low volumes and does not pose any significant acute or chronic risk. It is not a genotoxic compound. It is neither a known developmental toxin nor a known human carcinogen. APFO exhibits low environmental toxicity; tests on various aquatic life forms have shown no i adverse effects even at very high doses. APFO is not bioaccumulative in the food chain. As with most fluorochemical processes, the wastewater from the APFO manufacturing process is expected to have very little or no biological oxygen demand (BODS) value. In addition, the fluoride and fluorocarbons have been related to settleability problems in the WWTP's final clarifiers. For these reasons, DuPont proposes to create a new permitted outfall, designated as Outfall 007, with the same monitoring requirements as the currently permitted Outfall 006, through which the APFO process wastewater will be discharged directly to the site's woodlined ditch and ultimately through Outfall 002. The rational behind this new outfall is identical to that used to create Outfall 006 (See Attachment A for a letter dated March 15,1996 from Michael E. Johnson, DuPont, to Gregory Nizich, DEM). DuPont will conduct a study of the APFO process wastewater to verify the absence of significant BODS value before the project is constructed to provide support for the appropriateness to discharge of this stream directly to the woodlined ditch. In the extremely unlikely event that this wastewater exhibits BODS concentrations near the permitted limit of 24 mg/L, then DuPont will convey the wastewater to the site's WWTP for treatment and discharge at Outfall 001. The APFO wastewater will contain iodide, a new chemical to the Fayetteville Works facility. Current estimates of the wastewater indicate that there will be approximately 365 lb/day I2 that would convert to form approximately 477 lb/day of the potassium iodide salt (KI). The 7Q 10 of the Cape Fear River at the DuPont locationi-i� 79,116wic feet per second. At the 7Q10 flowrate, the concentration of potassium iodide in the river would be 112 µg/L. An emergency oleum water scrubber will be included as an integral part of this process. In the unlikely event of a release of oleum (a solution of S03 in H2SO4) inside the manufacturing building, the scrubber would remove the resulting S03 from the air. To prevent the growth of Potential Facility Changes algae and/or slime inside the scrubber, a biocide will likely be added to the water in the scrubber. There will be a purge of some volume of the scrubber water on a continuous basis, so the biocide will be discharged to Outfall 002. At this time, no decision has been made as to what biocide will be used in this scrubber, but when one is chosen, DuPont will submit a revised Part 5 to Section II of this application for Outfall 002 and Outfall 007. Finally, stormwater associated with the APFO process area will be discharged directly to ' Outfall 002 via the site's Woodlined Ditch. Butacite® Production Increase: Due to the anticipated increases in market demand, the ' Butacite® business is expecting a substantial increase in production of the DuPontTM Butacite(R Interlayer sheeting and PVB Resin during the next five years. A new Butacite® PVB reactor is scheduled to be installed within two years, and additional improvements within the Butacite®® manufacturing processes will result in the needed production increase. See the section titled "Production Data" for more information. ' Nafion® Production Increase: Due to the anticipated increases in market demand, the DuPont Fluoroproducts monomers business is expecting a substantial increase in production during the next five years. For the same reason, the DuPontTM Nafion® membrane business is expecting a substantial increase in production during the next five years. Both the monomers and membrane manufacturing areas will accomplish this expanded production capability through debottlenecking the existing processes and/or installation of new equipment. See the section titled "Production Data" for more information. BCH Alternate Energy Proiect: The BCH Alternate Energy Project located at the DuPont Fayetteville Works went into bankruptcy in 1998, and the project's physical facility and equipment were sold. Therefore, all reference to this facility should be removed from the subject NPDES permit. Outfall 002 Discharge Relocation: During a drought condition during the summer of 1999, the DuPont effluent channel that conveys the site's final water discharge to the Cape Fear River experienced sloughing of the streambanks into the flowing effluent, resulting in excessive sediment discharge into the river. DuPont has initiated a study to determine a cost effective remedy this situation. Currently, two options are being considered: Option 1: Collect the total flow from Outfall 002 and convey it via a pipeline to the Cape Fear River upstream of Lock & Dam #3. Option 2: Collect the total flow from Outfall 002 and convey it via a pipeline to the Cape Fear River downstream of Lock & Dam #3. Option 1 is the most attractive to DuPont at this time because it is the least expensive due to the shorter distance from Outfall 002 and the river. In addition, Option 2 would require that DuPont lay the pipeline across the government owned property of the park facility at Lock & Dam #3, otherwise the pipeline would have to run over a much longer, more circuitous route. It M aa, 4 it DuPont - Fayetteville Works NPDES Permit No. NC0003573 Potential Facility Changes is unknown whether DuPont would receive approval from the Army Corps of Engineers to lay this pipeline across their property. This proposal was presented to the Division of Water Quality, and the single concern stated by the division was that a discharge upstream of Lock & Dam #3 might be considered to be a reservoir instead of a flowing river, and as such DuPont's permitted limits for BODS, nitrogen, and phosphorous might be lowered. According to the division, a modeling exercise would have to be performed by DWQ to determine whether or not lower permit limits would result for a discharge upstream from the Lock & Dam. Given the anticipated growth of this site during the next decade, it is essential that DuPont fully understand the implications of relocating the effluent upstream of the Lock & Dam before a decision is made to do so. Therefore, DuPont is awaiting the result of the division's modeling exercise before a decision is made on which option will be pursued. H 1 .a GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 1 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 50050 00310 00530 TGP3B 00010 00400 00556 32102 MONTH Q/MGD BOD RES/TSS CERI7DPF TEMP PH OIL-GRSE CARBNTET LIMIT F 2.0000 F 191.30 F 317.8 NOL NOL 9.0 6.0 NOL 00/08 .9788 49.45 122.9 1 23.78 7.7-7.5 7.800 00/09 .7053 35.11 95.4 23.77 7.8-7.2 7.000 00/10 .7218 59.72 72.0 22.00 7.8-7.1 17.400 00/11 .8245 62.25 127.5 1 20.07 7.7-7.4 2.700 00/12 .8244 79.91 176.5 17.08 8.0-7.3 3.900 O1/01 .9672 76.57 77.4 19.06 7.7-7.4 1.500 01/02 .1102 318.35F 30.6 1 45.00 7.9-7.2 11.440 01/03 .6310 32.40 29.0 1 34.38 7.9-7.0 13.284 01/04 .9983 50.23 105.8 25.91 7.6-7.0 10.000 01/05 .9339 37.92 143.4 1 26.38 7.8-7.2 1.500 01/06 .9899 40.88 102.3 29.25 7.7-7.0 2.400 01/07 .8185 34.52 74.1 27.14 7.8-7.2 4.100 AVERAGE .7919 73.10 96.4 1 26.15 6.918 MAXIMUM 1.3320 669.00 581.3 1 49.00 8.000 94.700 MINIMUM .0000 LESSTHAN LESSTHAN 1 10.00 7.000 1.500 UNIT MGD LBS/DAY LBS/DAY PASS/FAI DEG.0 SU MG/L LBS/DAY GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 2 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 32103 34200 34205 34215 34220 34230 34242 34247 MONTH 12DICLET ACENAPHT ACENAPHT ACRYLONI ANTHRACE BENZBFLU BENZO(K) BENZO(A) LIMIT 00/08 00/09 00/10 00/11 00/12 O1/01 01/02 01/03 01/04 01/05 01/06 01/07 AVERAGE MAXIMUM MINIMUM UNIT LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 3 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 34301 34311 34320 34336 34341 34371 34376 34381 MONTH CHLOROBE CHLOROET CHRYSENE DIETHYLP DIMETHYL ETHYLBEN FLUORANT FLUORENE LIMIT 00/08 00/09 00/10 00/11 00/12 O1/01 01/02 01/03 01/04 01/05 01/06 01/07 AVERAGE MAXIMUM MINIMUM UNIT LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY ; J 'I l . f` GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 4 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN MONTH LIMIT 00/08 00/09 00/10 00/11 00/12 01/01 01/02 01/03 01/04 01/05 01/06 01/07 34396 34418 34423 34447 34461 34469 34475 34496 HEXACHLO METHYLCH METHYLEN NITROBEN PHENANTH PYRENE TETRACHL 11DICHLO AVERAGE MAXIMUM MINIMUM UNIT LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 5 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 34501 34506 34511 34526 34536 34541 34546 34551 MONTH 11DICHLO 111TRICH 112TRICH BENZO(A) 12DICHLO 12DICHLO 12DICHLO 124TRICH LIMIT 00/08 00/09 00/10 00/11 00/12 O1/01 01/02 01/03 01/04 01/05 01/06 01/07 AVERAGE MAXIMUM MINIMUM UNIT LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 6 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 34561 34566 34571 34586 34591 34601 34606 34611 MONTH 13DICHLO 13DICHLO 14DICHLO 2CHLOROP 2NITROPH 24DICHLO 24DIMETH 24DINITR LIMIT 00/08 00/09 00/10 00/11 00/12 01/01 01/02 01/03 O1/04 01/05 01/06 01/07 AVERAGE MAXIMUM MINIMUM UNIT LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY I0 111 1Jw1 GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 7 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 34616 34626 34646 34657 34696 39100 39110 39175 MONTH 24DINITR 26DINITR 4NITROPH 46DINITR NAPTHALE B2E PHTH DNB PHTH VINYLCHL LIMIT 00/08 00/09 00/10 00/11 00/12 O1/01 01/02 01/03 01/04 01/05 01/06 01/07 AVERAGE MAXIMUM MINIMUM UNIT LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY LBS/DAY GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 8 PERMIT--NC0003573 PIPE --001 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 39700 39702 MONTH HCB HEXCLBD LIMIT 00/08 00/09 00/10 00/11 00/12 O1/01 01/02 01/03 01/04 01/05 01/06 01/07 AVERAGE MAXIMUM MINIMUM UNIT UG/L LBS/DAY GKEX88/MP 09/17/2001 COMPLIANCE EVALUATION ANALYSIS REPORT PAGE 1 PERMIT--NC0003573 PIPE --002 REPORT PERIOD: 0008-0107 LOC ---E FACILITY--DUPONT-FAYETTEVILLE DESIGN FLOW-- 2.0000 CLASS --2 LOCATION--FAYETTEVILLE REGION/COUNTY--06 BLADEN 50050 00310 00340 00010 00400 00600 00665 00951 MONTH Q/MGD BOD COD TEMP PH TOTAL N PHOS -TOT FLUORIDE LIMIT NOL NOL NOL NOL 9.0 6.0 NOL NOL 00/08 16.3425 .00 42.9 29.39 7.8-7.3 .000 .6000 951.228 00/09 12.7703 26.20 7.9-6.5 .000 .0000 562.522 00/10 11.3920 23.00 7.6-7.1 .200 .2100 553.142 00/11 9.2658 2.00 45.5 19.04 7.6-6.9 .360 .4600 1459.033 00/12 9.3739 12.55 7.7-7.0 .930 .4400 1095.172 01/01 11.3465 12.26 8.0-6.6 1.080 .3900 1367.200 01/02 10.1565 .00 39.2 15.25 7.9-6.8 .800 .0000 333.000 01/03 12.5339 .00 15.13 7.8-6.9 .960 .5700 310.666 01/04 12.4797 19.55 7.8-6.5 1.470 .0000 682.461 01/05 13.8984 1.40 23.3 25.63 7.8-7.0 1.220 .0000 1443.814 01/06 16.9484 28.15 7.3-6.8 1.740 .0000 1050.416 01/07 16.6585 29.27 7.5-6.8 2.000 .0000 1214.071 AVERAGE 12.7638 .68 37.7 21.28 .896 .2225 918.560 MAXIMUM 19.0270 2.00 45.5 32.00 8.000 2.000 .6000 8192.000 MINIMUM .0000 LESSTHAN 23.3 6.00 6.500 .200 .2100 39.000 UNIT MGD MG/L MG/L DEG.0 SU MG/L MG/L LBS/DAY State of North CarolinaRecd II��fot fflZ.W;W'J Department of Environment M� and Natural Resources • Division of Water Quality OOM Michael F. Easley, Governor William G. Ross, Jr., Secretary NCDENR Kerr T. Stevens, Director NORTH CAROLINA DEPARTMENT OF May 10, 2001 ENVIRONMENT AND NATURAL RESOURCES Mr. Barry Hudson DuPont - Fayetteville 22828 NC Highway 87 W Fayetteville, North Carolina 28306 Subject: NPDES Permit Renewal Application Permit NC0003573 DuPont - Fayetteville Bladen County Dear Mr. Hudson: The NPDES Unit received your permit renewal application on May 8, 2001. Thank you for submitting this package. The permit renewal for this facility has been assigned to Mike Templeton. This staff member will contact you if further information is needed to complete the permit renewal. Please note that the NPDES Unit has several vacant positions. This staff shortage has lasted for over a year and is delaying all permit renewals. Our remaining permit writers are currently reviewing Authorizations to Construct, speculative limit requests, major permit modifications and 201 plan updates ahead of permit renewals. This is necessary due to a variety of factors, including mandatory deadlines in the statutes which govern our program. If this staff shortage delays reissuance of NC0003573 the existing requirements in your permit will remain in effect until the permit is renewed (or the Division takes other action). We appreciate your patience and understanding while we operate with a severely depleted staff. If you have any additional questions concerning renewal of the subject permit, please contact Mike Templeton at (919) 733-5083, extension 541. Sincerely, Valery Stephens Point Source Unit cc: Fayetteville Regional Office, Water Quality Section NPDES File 113 11 ` I,.. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 520 (tax) 919 733-0719 VISIT US ON THE INTERNET @ httpJm2o.enr.state.nc.us/NPDES Valery.StephensOncmail.net