Loading...
HomeMy WebLinkAboutNC0039586_Permit (Issuance)_20210903NPDES Permit NC0039586 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Duke Energy Progress, LLC is hereby authorized to discharge wastewater from a facility located at Harris Nuclear Plant and Harris Energy and Environmental Center 5413 Shearon Harris Road New Hill Wake County to receiving waters designated as Harris Reservoir in the Cape Fear River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, IV, and V hereof. The permit shall become effective September 30, 2021. This permit and the authorization to discharge shall expire at midnight on August 31, 2026. Signed this day September 2, 2021. - DocuSigned by: Poupavt 8FB1QB64QDD2478 forS. Daniel Smith Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 16 NPDES Permit NC0039586 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. Duke Energy Progress, LLC is hereby authorized to: 1. Continue to discharge cooling tower blowdown through internal outfall 001; and 2. Continue to operate a 0.065 MGD extended aeration wastewater treatment plant consisting of dual package plants with the following components: • T-Max Units • Ax-Max Units • UV disinfection Backup system: • Primary treatment tank • equalization basin • aeration basin • sludge holding tanks • clarifiers chlorine contact tanks recirculating bed filters sand filter discharging through internal outfall 002; and 3. Continue to operate a metal cleaning waste treatment system consisting of dual neutralization basins discharging through internal outfall 003; and 4. Continue to operate a low volume waste treatment system consisting of: • Waste neutralization basin (also used for metal cleaning waste treatment, outfall 003) • Settling basin discharging through internal outfall 004; and 5. Continue to operate a radwaste treatment system consisting of a Modular Fluidized Transfer Demineralization System discharging through internal outfall 005; and 6. Discharge wastewater from outfalls 001 through outfall 005 through the combined outfall 006 located at the Harris Nuclear Power Plant, 5413 Shearon Harris Road, New Hill, Wake County; and 7. Continue to operate a 0.02 MGD wastewater treatment facility consisting of: • bar screen • influent pump station aerated pond • stabilization pond • polishing pond • sand filter, • UV disinfection • Backup chlorination and dechlorination discharging through outfall 007 located at the Harris Energy and Environmental Center, 3932 New Hill/Holleman Road, New Hill, Wake County; and 8. Discharge from said treatment works and stormwater outfalls into Harris Reservoir, a Class WS-V water in the Cape Fear River Basin, at the locations specified on the attached maps. Page 2 of 16 NPDES Permit NC0039586 PART I A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 001) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge cooling tower blowdown from internal outfall 001. Such discharges shall be limited and monitored6 by the Permittee as specified below: Effluent Characteristics Effluent Limitations Monitoring Requirements Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location' Flow2 (MGD) Continuous Recorder Effluent Free Available Chlorine3 0.2 mg/L 0.5 mg/L Weekly See Note 4 See Note 4 Total Residual Chlorine3 (mil) Weekly See Note 4 See Note 4 Time of TRC3 (min/day/unit) 120.0 min Weekly Calculations Effluent Total Chromium' 0.2 mg/L 0.2 mg/L Weekly Grab Effluent Total Zinc' 1.0 mg/L 1.0 mg/L Weekly Grab Effluent pH 6 to 9 S.U. Weekly Grab Effluent The 126 Priority Pollutants' Annually Grab Effluent Notes: 1. Effluent prior to mixing with any other waste stream. 2. Discharge of blowdown from the cooling system shall be limited to the minimum discharge of recirculating water necessary for the purpose of discharging materials contained in the water, the further built-up of which would cause concentrations in amounts exceeding limitations established by best engineering practices. The permittee may discharge cooling water to the auxiliary reservoir in compliance with condition A. (20) of this permit. 3. Neither free available chlorine nor total residual chlorine may be discharged from any unit for more than two hours in any one day and not more than one unit in any plant may discharge free available or total residual chlorine at any one time unless the utility can demonstrate to the Director that the units in question cannot operate at or below this level of chlorination. The permittee shall record and report times of release as part of the monthly monitor report. Free available chlorine shall be a daily average and daily maximum. 4. Samples shall be multiple grabs at the tower which shall consists of grab samples collected at the approximate beginning of the total residual chlorine discharge and once every 15 minutes thereafter until the end of the total residual chlorine discharge. For the purpose of this permit, daily average (as it relates to the chlorination period) shall mean the average over any total residual chlorine discharge period. Monitoring only applicable if the facility adds chlorine to water that is eventually discharged. 5. These limitations and monitoring requirements apply only if these materials are added for cooling tower maintenance by the permittee. There shall be no discharge of detectable amounts of the 126 priority pollutants (40 CFR 423 Appendix A) contained in chemicals added for cooling tower maintenance except for Total Chromium and Total Zinc. Compliance with the limitations for the 126 pollutants may be determined by engineering calculations which demonstrate that the regulated pollutants are not detectable in the discharge by the analytical methods in 40 CFR 136. 6. By December 21, 2016, begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A. (19). Page 3of16 NPDES Permit NC0039586 A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 002) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from internal outfall 002, Sanitary Waste Treatment Plant. Such discharges shall be limited and monitored3 by the Permittee as specified below: Effluent Characteristics Effluent Limitations Monitoring Requirements Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location' Flow 0.065 MGD Continuous Recording2 I or E BOD, 5 day, 20°C 30.0 mg/L 45.0 mg/L Weekly Composite E Total Suspended Solids 30.0 mg/L 45.0 mg/L Weekly Composite E NH3 as N (mg/1) Monthly Composite E Fecal Coliform (geometric mean) 200/100 mL 400/100 mL Weekly Grab E Total Residual Chlorine (µg/1)4 Weekly Grab E Notes: 1. Sample locations: E- Effluent prior to mixing with any other waste stream; I -Influent 2. Flow may be measured by pump logs. 3. By December 21, 2016, begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A (19). 4. Monitoring only applicable if the facility adds chlorine to water that is eventually discharged. See Special Condition A. (18) Wastewater Management Domestic Treatment Systems. A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 003) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from internal outfall 003, Metal Cleaning Wastes'. Such discharges shall be limited and monitored5 by the Permittee as specified below: Effluent Characteristics Effluent Limitations Monitoring Requirements Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location2 Flow3 0.05 MGD See Note 3 See Note 3 Effluent Total Copper 1.0 mg/L 1.0 mg/L Daily4 Grab Effluent Total Iron 1.0 mg/L 1.0 mg/L Daily4 Grab Effluent pH 6 to 9 SU Daily4 Grab Effluent Notes: 1. Metal cleaning waste sources as defined in 40 CFR 423.11 (d). 2. Effluent prior to mixing with any other waste stream. 3. Discharge from outfall 003 must continue to be routed to outfall 004 before final discharge. Flow shall be measured during discharge using pump logs. 4. Daily during metal cleaning waste discharge events only. Page 4 of 16 NPDES Permit NC0039586 5. By December 21, 2016, begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A (19). The discharge shall comply with the limitations specified for metal cleaning waste prior to mixing with other waste streams. A. (4) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 004) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from internal outfall 004, Low Volume Wastes1 (including membrane backwash water). Such discharges shall be limited and monitored' by the Permittee as specified below: Effluent Characteristics Effluent Limitations Monitoring Requirements Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location' Flow 1.5 MGD Weekly Estimate3 Effluent Total Suspended Solids 30.0 mg/L 100.0 mg/L 2/Month Grab Effluent Oil and Grease 15.0 mg/L 20.0 mg/L Weekly Grab Effluent Notes: 1. Low volume waste sources as defined in 40 CFR 423.11 (b). 2. Effluent prior to mixing with any other waste stream. 3. The volume of wastewater discharged from the facility shall be monitored. If continuous flow monitoring is not feasible, flow may be estimated. 4. By December 21, 2016, begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A. (19). A. (5) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 005) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from internal outfall 005, Radwaste System. Such discharges shall be limited and monitored' by the Permittee as specified below: Effluent Characteristics Effluent Limitations Monitoring Requirements Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location' Flow (MGD) Monthly Estimate' Effluent Total Suspended Solids 30.0 mg/L 100.0 mg/L Monthly Grab Effluent Oil and Grease 15.0 mg/L 20.0 mg/L Monthly Grab Effluent Notes: 1. Effluent prior to mixing with any other waste stream. 2. Flow shall be estimated during discharge. 3. By December 21, 2016, begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A. (19). Page 5of16 NPDES Permit NC0039586 A. (6) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 006) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from outfall 006, combined outfalls 001 through 005. Such discharges shall be limited and monitored8 by the Permittee as specified below: Effluent Characteristics Effluent Limitations Monitoring Requirements Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Type Sample Location' Flow (MGD) Weekly Estimate' Effluent Hydrazine' 60.0 µg/L Weekly Grab Effluent Temperature (April 1 — October 31) a (°C) Weekly Grab Effluent Temperature (November 1 — March 31) (°C) Weekly Grab Effluent Acute Toxicity5 Quarterly Composite" Effluent pH 6.0 to 9.0 S.U. Weekly Grab Effluent Total Copper? Quarterly Composite" Effluent Total Selenium, µg/L Quarterly Composite" Effluent Total Arsenic, µg/L Quarterly Composite" Effluent NH3 as N (mg/L) Monthly Composite" Effluent Total Suspended Solids (mg/L) Monthly Composite" Effluent Total Nitrogen (mg/L) Monthly Composite" Effluent Total Phosphorus (mg/L) Monthly Composite" Effluent Notes: 1. Effluent after combination of all waste streams from outfalls 001 through 005 and prior to discharge into Harris Reservoir. 2. The volume of wastewater discharged from the facility shall be monitored. If continuous flow monitoring is not feasible, flow may be estimated. 3. The hydrazine limit of 60 µg/L shall apply at all times except during the periods following wet lay-up of equipment during an extended outage when a hydrazine limit of 2.0 mg/L shall apply for a total period of no more than 48 hours. Alternately, the permittee may elect to meet these limits at outfall 004, in which case sampling for hydrazine at outfall 006 is not required. 4. The discharge shall not result in the violation of the temperature or chlorine water quality standards outside of a mixing zone of 200 acres around the point of discharge. The facility is located in the Lower Piedmont area of the state; the applicable state water quality temperature standard is 32 °C (89.6 °F) and the total residual chlorine standard is 17 µg/l. The temperature within the mixing zone shall not: (1) prevent free passage of fish around or cause fish mortality within the mixing zone, (2) result in offensive conditions, (3) produce undesirable aquatic life or result in a dominance of nuisance species outside of the zone, or (4) endanger the public health or welfare. Temperature and total residual chlorine data collected according to the Monitoring Plan for Harris Reservoir should be summarized in the Annual Environmental Monitoring Report for Harris Reservoir. 5. Acute toxicity (Pimephales) P/F at 90%: February, May, August, and November, See Special Condition A (8). 6. A composite sample consisting of 24 or more grab samples of equal volumes taken at equal intervals over a 24 hour period. 7. See Special Condition A. (9) Schedule of Compliance for Hardness Dependent Metals. 8. By December 21, 2016, begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A. (19). There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 6 of 16 NPDES Permit NC0039586 A. (7) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (OUTFALL 007) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from Outfall 007, Harris Energy & Environmental Center. Such discharges shall be limited and monitored5 by the Permittee as specified below: Effluent Characteristics Effluent Limitations Monitoring Requirements Monthly Average Daily Maximum Measurement Frequency Sample Type ) Sample Location' Flow 0.02 MGD Weekly Instantaneous I or E BOD, 5 day, 20°C (April 1 —October 31) 15.0 mg/L 22.5 mg/L Weekly Grab Effluent BOD, 5 day, 20°C (November 1 — March 31) 30.0 mg/L 45.0 mg/L Weekly Grab Effluent Total Suspended Solids 30.0 mg/L 45.0 mg/L Weekly Grab Effluent NH3 as N (April 1 — October 31) 4.0 mg/L 20.0 mg/L Weekly Grab Effluent NH3 as N (November 1 — March 31) 8.0 mg/L 35.0 mg/L Weekly Grab Effluent Fecal Coliform (geometric mean) 200 /100 mL 400/100 mL Weekly Grab Effluent Total Residual Chlorine 28 µg/L 2/Week Grab Effluent pH2 Weekly Grab Effluent Temperature (°C) Weekly Grab Effluent TKN (mg/L) Monitor and report Quarterly Grab Effluent NO2-N + NO3-N (mg/L) Monitor and report Quarterly Grab Effluent Total Nitrogen (mg/L) Quarterly Grab Effluent Total Phosphorus (mg/L) Quarterly Grab Effluent Dissolved Oxygen3 Weekly Grab Effluent Acute Toxicity4 Quarterly Composite Effluent Notes: 1. Sample locations: E- Effluent, I- Influent 2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 3. The daily average dissolved oxygen effluent concentration shall not be less than 5 mg/L. 4. Acute Toxicity (Pimephales) P/F at 90%: August, November, February and May. See Special condition A. (8). 5. By December 21, 2016, begin submitting Discharge Monitoring Reports electronically using NC DWR's eDMR application system. See Special Condition A (19). There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (8) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY) OUTFALLS 006 AND 007 [15A NCAC 02B .0200 et seq.] The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single Effluent Concentration" (Revised December 2010 or subsequent versions). The monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 24 hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document). The tests will be performed during the months of February, May, August, and November. These months signify the first month of each three month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. Page 7 of 16 NPDES Permit NC0039586 Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE6C. Additionally, DWR Form AT-2 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Or, results can be sent to the email: ATForms.ATB@u,ncdenr.gov. Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should 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 Water Sciences Section at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Assessment of toxicity compliance is based on the toxicity testing quarter, which is the three month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Resources 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 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. A. (9) COPPER LIMITS EVALUATION (OUTFALL 006) [G.S. 143-215.1(b)] The Total Copper limits have been eliminated for this permit term only. If the facility desires to extend WER based copper limits elimination for the next permit term, the facility shall conduct a new WER study. The new WER study shall be conducted per EPA guidance for WER evaluations in lakes, to do a mixing zone analysis (MZA) in conjunction with WER study, which incorporates effluent mixed with site water at a ratio to be determined by the near -field dilution from the mixing zone in order to derive a WER that reflects mixing of the effluent with the receiving water. This would factor in all the variables beyond hardness that affect copper toxicity (e.g. dissolved organic carbon, pH, cations/anions that form copper complexes, etc.) inherent in the combined effluent and receiving water. A. (10) BIOCIDES [G.S. 143-215, 143-215.1] The permittee shall not use any biocides 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 Resources. Such notification shall include completion of Biocide Worksheet Form 101 and a map locating the discharge point and receiving Page 8of16 NPDES Permit NC0039586 stream. Completion of Biocide Worksheet Form 101 is not necessary for those outfalls containing toxicity testing. Division approval is not necessary for the introduction of new biocides into outfalls currently tested for whole effluent toxicity. A. (11) CHEMICAL METAL CLEANING WASTES [G.S. 143-215, 143-215.1] The term "chemical metal cleaning waste" means any wastewater resulting from the cleaning of any metal process equipment with chemical compounds including, but not limited to, boiler tube cleaning. A. (12) COMBINED WASTE STREAMS [G.S. 143-215, 143-215.1] In the event that waste streams from various sources are combined for treatment or discharge, the quantity of each pollutant or pollutant property attributable to each controlled waste source shall not exceed the specified limitation for that waste source. A. (13) FEDERAL INSECTICIDE, FUNGICIDE, AND RODENTICIDE ACT [G.S. 143-215, 143-215.1] Discharge of any product registered under the Federal Insecticide, Fungicide, and Rodenticide Act to any waste stream which may ultimately be released to lakes, rivers, streams, or other wasters of the United States is prohibited unless specifically authorized elsewhere in this permit. This requirement is not applicable to products used for lawn and agricultural purposes. Discharge of chlorine from the use of chlorine gas, sodium hypochlorite, or other similar chlorination compounds for disinfection in plant potable and service water systems and in sewage treatment is authorized. A. (14) POLYCHLORINATED BIPHENYL COMPOUNDS [G.S.143-215,143-215.1] There shall be no discharge of polychlorinated biphenyl compounds such as those commonly used for transformer fluid. A. (15) RADIOACTIVE MATERIAL [G.S. 143-215, 143-215.1] Releases of radioactive material shall be monitored and conducted in accordance with all conditions and limitations required by the Nuclear Regulatory Commission (NRC) and as specified in the Final Safety Analysis Report, Technical Specifications, and Environmental Statement for the Shearon Harris Nuclear Plant. A. (16) TOXICITY REOPENER [G.S. 143-215, 143-215.1] This permit shall be modified, or revoked and reissued to incorporate toxicity limitations and monitoring requirements in the event toxicity testing or other studies conducted on the effluent or receiving stream indicate that detrimental effects may be expected in the receiving stream as a result of this discharge. A. (17) CLEAN WATER ACT SECTION 316 (b) [G.S. 143-215, 143-215.1] The permittee shall comply with the Cooling Water Intake Structure Rule per 40 CFR 125.95. Pursuant to the Rule and after review of the required submitted information, the Director has determined that operating and maintaining the existing closed - cycle recirculating system meets the impingement and entrainment requirements for BTA. Unless otherwise authorized, nothing in this permit authorizes take for the purposes of a facility's compliance with the Endangered Species Act 40 CFR 125.98 (b)(1). A. (18) WASTEWATER MANAGEMENT DOMESTIC TREATMENT SYSTEMS (OUTFALLS 002 AND 007) [G.S. 143-215, 143-215.1] The permittee shall at all times properly operate and maintain the domestic wastewater treatment plants to meet secondary treatment standards. The permittee can operate the two domestic treatment plants to treat wastewaters from either facility as described in the permit application and authorized in this permit in Special Conditions A. (2) and A. (7). A. (19) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-215.1(b)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports and specify that, if a state does not establish a system to receive such submittals, then permittees must submit monitoring data and reports Page 9 of 16 NPDES Permit NC0039586 electronically to the Environmental Protection Agency (EPA). The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit (Standard Conditions for NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) Reporting • Section D. (6.) Records Retention • Section E. (5.) Monitoring Reports 1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)1 Effective December 21, 2016, the permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. Until such time that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR to the following address: NC DENR / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. See "How to Request a Waiver from Electronic Reporting" section below. Regardless of the submission method, 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. Starting on December 21, 2025, the permittee must electronically report the following compliance monitoring data and reports, when applicable: • Sewer Overflow/Bypass Event Reports; • Pretreatment Program Annual Reports; and • Clean Water Act (CWA) Section 316(b) Annual Reports. The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver from Electronic Reporting" section below). 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. Page l0 of 16 NPDES Permit NC0039586 EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at: http: //www2. epa. goy/compliance/final-national-pollutant-discharge-elimination-system-npdes-electronic-reporting-rule. Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. 3. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the permittee re -applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr 4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1 All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following web page: http://deq.nc.gov/about/divisions/water-resources/edmr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "I 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. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." 5. Records Retention [Supplements Section D. (6.)1 The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41]. A. (20) AUXILIARY RESERVOIR [G.S. 143-215, 143-215.1] In order to ensure that the auxiliary reservoir is available for its designated use at all times, the permittee may circulate heated water through the auxiliary reservoir to prevent ice formation at any time that the surface water temperature is below 35° F provided that the surface water temperature in the auxiliary reservoir is not raised more than 5° F above ambient temperature and in no case is raised to more than 40° F. Emergency Service Water may be discharged to the auxiliary reservoir as required for operation of nuclear safety systems and testing. Page 11 of 16 NPDES Permit NC0039586 A. (21) STORMWATER MONITORING REQUIREMENTS [G.S. 143-215.1(a) et seq., 15A NCAC 02h .0126 et seq.] Stormwater conditions under this section will expire on the effective date when an individual stormwater permit is issued to the facility by the Division of Energy, Mineral and Land Resources. 1. Qualitative Monitoring Qualitative monitoring requires a qualitative inspection of each stormwater outfall, regardless of representative outfall status, for the purpose of evaluating the effectiveness of the Stormwater Pollution Prevention Plan (SPPP) and assessing new sources of stormwater pollution. No analytical tests are required. Qualitative monitoring of stormwater outfalls does not need to be performed during a representative storm event. Stormwater Discharge Characteristics Monitoring Frequency) Sample Location' Color Semi -Annual SDO Odor Semi -Annual SDO Clarity Semi -Annual SDO Floating Solids Semi -Annual SDO Suspended Solids Semi -Annual SDO Foam Semi -Annual SDO Oil Sheen Semi -Annual SDO Other obvious indicators of stormwater pollution Semi -Annual SDO Notes: 1. Qualitative monitoring will be performed twice per year, once in the spring (April -June) and once in the fall (September - November). 2. Sample location: SDO — Stormwater Discharge Outfall. 2. Stormwater Pollution Prevention Plan The permittee shall develop a Stormwater Pollution Prevention Plan, herein after referred to as the Plan. The Plan shall be considered public information in accordance with Part VI, Section E.10 of this permit. The Permittee is not required to submit a copy of the Plan to the Division. The Plan shall be available at the permitted facility for Division staff or public review upon request. The Plan shall include, at a minimum, the following items: a. Site Plan: The site plan shall provide a description of the physical facility and the potential pollutant sources which may be expected to contribute to contamination of regulated stormwater discharges. The site plan shall contain the following: (1) A general location map (USGS quadrangle map, or appropriately drafted equivalent map), showing the facility's location in relation to transportation routes and surface waters, and the name of the receiving water(s) to which the stormwater outfall(s) discharges. If the discharge is to a municipal separate storm sewer system, the name of the municipality and the ultimate receiving waters, and accurate latitude and longitude of the point(s) of discharge must be shown. (2) A narrative description of storage practices, loading and unloading activities, outdoor process areas, dust or particulate generating or control processes, and waste disposal practices. (3) A site map (or series of maps) drawn to scale with the distance legend indicating location of industrial activities (including storage of materials, disposal areas, process areas, and loading and unloading areas), drainage structures, drainage areas for each outfall and activities occurring in the drainage area, building locations and impervious surfaces, the percentage of each drainage area that is impervious. For each outfall, a narrative Page 12 of 16 NPDES Permit NC0039586 description of the potential pollutants which could be expected to be present in the regulated stormwater discharge. (4) A list of significant spills or leaks of pollutants that have occurred at the facility during the 3 previous years and any corrective actions taken to mitigate spill impacts. (5) Certification that the stormwater outfalls have been evaluated for the presence of non-stormwater discharges. The certification statement will be signed in accordance with the requirements found in Part VI, Section B.11. b. Stormwater Management Plan: The stormwater management plan shall contain a narrative description of the materials management practices employed which control or minimize the exposure of significant materials to stormwater, including structural and non-structural measures. The stormwater management plan, at a minimum, shall incorporate the following: (1) A study addressing the technical and economic feasibility of changing the methods of operations and/or storage practices to eliminate or reduce exposure of materials and processes to stormwater. Wherever practicable the permittee should consider covering storage areas, material handling operations, manufacturing or fueling operations to prevent materials exposure to stormwater. In areas where elimination of exposure is not practicable, the stormwater management plan shall document the feasibility of diverting the stormwater runoff away from areas of potential contamination. (2) A schedule to provide secondary containment for bulk storage of liquid materials, storage of Section 313 of Title III of the Superfund Amendments and Reauthorization Act (SARA) water priority chemicals, or storage of hazardous materials to prevent leaks and spills from contaminating stormwater runoff. If the secondary containment devices are connected directly to stormwater conveyance systems, the connection shall be controlled by manually activated valves or other similar devices [which shall be secured with a locking mechanism] and any stormwater that accumulates in the containment area shall be at a minimum visually observed prior to release of the accumulated stormwater. Accumulated stormwater shall be released if found to be uncontaminated. Records documenting the individual making the observation, the description of the accumulated stormwater and the date and time of the release shall be kept for a period of five years. (3) A narrative description of Best Management Practices (BMPs) to be considered such as, but not limited to, oil and grease separation, debris control, vegetative filter strips, infiltration and stormwater detention or retention, where necessary. The need for structural BMPs shall be based on the assessment of potential of sources contributing significant quantities of pollutants to stormwater discharges and data collected through monitoring of stormwater discharges. (4) Inspection schedules of stormwater conveyances and controls and measures to be taken to limit or prevent erosion associated with the stormwater systems. c. Spill Prevention and Response Plan: The Spill Prevention and Response Plan shall incorporate a risk assessment of potential pollutant sources based on a materials inventory of the facility. Facility personnel (or team) responsible for implementing the plan shall be identified in the plan. A responsible person shall be on -site at all times during facility operations that have the potential to contaminate stormwater runoff through spills or exposure of materials associated with the facility operations. d. Preventative Maintenance and Good Housekeeping Program: A preventative maintenance program shall be developed. The program shall document schedules of inspections and maintenance activities of stormwater control systems, plant equipment and systems. Inspection of material handling areas and regular cleaning schedules of these areas shall be incorporated into the program. e. Training schedules shall be developed and training provided at a minimum on an annual basis on proper spill response and cleanup procedures and preventative maintenance activities for all personnel involved in any of the facility's operations that have the potential to contaminate stormwater runoff. Facility personnel (or team) responsible for implementing the training shall be identified in the plan. f. The Stormwater Pollution Prevention Plan shall identify a specific position(s) responsible for the overall coordination, development, implementation, and revision to the Plan. Responsibilities for all components of the Plan shall be documented and position(s) assignments provided. Page 13 of 16 NPDES Permit NC0039586 g. Plan Amendment: The permittee shall amend the Plan whenever there is a change in design, construction, operation, or maintenance which has a significant effect on the potential for the discharge of pollutants via a point source to surface waters. The Stormwater Pollution Prevention Plan shall be reviewed and updated on an annual basis. The director may notify the permittee when the Plan does not meet one or more of the minimum requirements of the permit. Within 30 days of such notice, the permittee shall submit a time schedule to the Director for modifying the Plan to meet minimum requirements. The permittee shall provide certification in writing (in accordance with Part VI, Section B.11.) to the Director that the changes have been made. h. Facility Inspections: Inspections of the facility and all stormwater systems shall occur at a minimum on a semiannual schedule, once in the fall (September - November) and once during the spring (April - June). The inspection and any subsequent maintenance activities performed shall be documented, recording date and time of inspection, individual(s) making the inspection and a narrative description of the facility's stormwater control systems, plant equipment and systems. Records of these inspections shall be incorporated into the Stormwater Pollution Prevention Plan. Visual monitoring as required in Part I, Section A(8) Stormwater Monitoring Requirements/Qualitative Monitoring shall be performed in addition to facility inspections. i. Implementation: Implementation of the Plan shall include documentation of all monitoring, measurements, inspections, maintenance activities and training provided to employees, including the log of the sampling data. Activities taken to implement BMPs associated with the industrial activities, including vehicle maintenance activities, must also be recorded. All required documentation shall be kept on -site for a period of five years and made available to the Director or his authorized representative immediately upon request. 3. Stormwater Minimum Monitoring and Reporting Requirements Minimum monitoring and reporting requirements are as follows unless otherwise approved in writing by the Director: a. If a facility has multiple discharge locations with substantially identical stormwater discharges that are required to be sampled, the permittee may petition the Director for representative outfall status. If it is established that the stormwater discharges are substantially identical and the permittee is granted representative outfall status, then sampling requirements may be performed at a reduced number of outfalls. b. Qualitative monitoring for color, odor, solids, foam, outfall staining, visible sheens and dry weather flow shall be performed at all stormwater discharge outfall locations. All qualitative monitoring shall be documented and records maintained with the Stormwater Pollution Prevention Plan. The initial qualitative monitoring event shall be performed simultaneously with the first analytical monitoring event and documentation of only this initial qualitative monitoring event shall be submitted along with the required analytical monitoring submittal. c. If the stormwater runoff is controlled by a detention pond, the following sampling requirements shall apply: (1) If the detention pond detains the runoff generated by one inch of rainfall for 24 hours, visual observations for color, foam, outfall staining, visible sheens and dry weather flow are required, but analytical sampling shall not be required. (2) If the detention pond discharges only in response to a storm event exceeding a 25-year, 24-hour storm, the pond shall be considered a non -discharging stormwater control system and not subject to NPDES requirements, unless the discharge causes a violation of water quality standards. d. Samples analyzed in accordance with the terms of this permit shall be submitted on forms approved by the Director no later than January 31 for the previous year in which sampling was required to be performed. e. Analytical results from sampling during the final year of the permit term shall be submitted with the permit renewal application. f. This permit regulates stormwater discharges associated with industrial activity. Non-stormwater discharges which shall be allowed in the stormwater conveyance system are: Page 14 of 16 NPDES Permit NC0039586 (1) All other discharges that are authorized by an NPDES permit. (2) Foundation drains, air -conditioner condensate without added chemicals, springs, waterline and fire hydrant flushing, water from footing drains, flows from riparian habitats and wetlands, fire -fighting training and fire system testing. (3) Discharges resulting from fire -fighting and uncontaminated discharges resulting from fire -fighting training and associate fire system testing. If the storm event monitored and reported in accordance with this permit coincides with a non-stormwater discharge, the permittee shall separately monitor and report all parameters as required under the non-stormwater portion of this permit and provide this information with the stormwater discharge monitoring report. Page 15 of 16 NPDES Permit NC0039586 Harris Nuclear Plant Wake County Receiving Stream: Harris Reservoir Stream Class: WS-V H U C: 03030004 Sub -Basin: 03-06-07 Drainage Basin: Cape Fear River Basin State Grid: Cokesbury Outfall 006: Latitude 35° 34' 47" Longitude 78° 58' 07" Outfall 007: Latitude 35° 38' 05" Longitude 78° 55' 05" N Facility Location (not to scale) NPDES Permit NC0039586 Page 16 of 16