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Home My WebLink AboutNC0004987_Draft Major Modification_20180109Water Resources Environmental Quality January 9, 2018 Mr. Paul Draovitch, Senior Vice President Environmental, Health and Safety Duke Energy Carolinas, LLC Mail Code EC13K P.O. Box 1006 Charlotte, North Carolina 28201-1006 Dear Mr. Draovitch: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director Subject: Draft NPDES Major Modification Permit NC0004987 Marshall Steam Station Catawba County Facility Class I Enclosed with this letter is a copy of the draft major modification for your facility. Please review the draft very carefully to ensure thorough understanding of the conditions and requirements it contains. The draft major modification contains the following significant changes from your current permit: • The Seep Outfalls 101 and 102 and Seep Pollutant Analysis Special Condition were eliminated from the permit. • The applicability date for the bottom ash transport water and the FGD effluent was postponed until December 31, 2023 based on the proposed EPA rulemaking. • The groundwater compliance boundary map was added to the permit. • The new outfall for the new lined Retention Basin (Outfall 005) was added to the permit, please see A. (9.). • The Compliance Boundary special condition was added to the permit, please see A. (32.). • The Groundwater Monitoring Well Construction and Sampling special condition was eliminated from the permit. • The requirement for a physical/chemical treatment was eliminated from the permit to meet accelerated closure requirements in the SOC. Please provide any comments you have regarding the draft permit to this office by February 9, 2018. At this time, the Division is also publishing a notice in the newspapers of general circulation in Catawba County, inviting public comment on the draft major modification. Following Nothing Compares. State of North Carolina I Environmental Quality 1611 Mail Service Center I Raleigh, North Carolina 27699-1611 919-707-9000 the 30 -day comment period, we will review all pertinent comments received and take appropriate action on the permit renewal. The NPDES Standard Conditions (Parts II, III, and IV) are not included with this draft. They can be found at the following link if you would like to review them in conjunction with this draft permit. http://ncdenr.s3.amazonaws com/s3fs- pubhc /Water%20Ouahty/Surface%20Water%20Protection /NPDES /MISC /NPDES%20Standard %20Conchtions-Boilerplate-DWR-SWP-NPDES-20150410.pdf If you have any questions about the NPDES permit process, please contact me at the following e - mad address: sergei.chemikov@ncdenr.gov, or telephone number: 919-807-6386. Sincerely, Sergei Cherenkov, Ph.D. Environmental Engineer II Complex NPDES Permitting Unit cc. NPDES Files EPA Region IV (e -copy) Mooresvile Regional Office / Sur -ace Water Protection (e -copy) Mooresvile Regional Office / Public Water Supply (e -copy) Aquatic Toxicology Unit (e -copy) TACU (e -copy) PERMIT No NC0004987 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES Draft PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, Duke Energy Carolinas, LLC is hereby authorized to discharge wastewater from a facility located at Marshall Steam Station At the intersection of NC Highway 150 and NCSR 1841 Terrell Catawba County to receiving waters designated as the Catawba River (Lake Norman) in the Catawba River Basin in accordance with effluent limitations, monitoring requirements, and other applicable conditions set forth in Parts I, II, and III hereof. This major modification shall become effective This permit and authorization to discharge shall expire at midnight on September 30, 2021. Signed this day Linda Culpepper, Interim Director Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 25 TO PERMIT COVER SHEET PERMIT No. NC0004987 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. 11Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. Duke Energy Carolinas, LLC is hereby authorized to: 1. Continue to discharge: • Outfall 001: once -through cooling water and intake screen backwash • Outfall 002: treated' wastewater (consisting of metal cleaning wastes, coal pile runoff, ash transport water, storm water, low volume wastes, landfill leachate, and FGD wet scrubber wastewater) from the ash settling basin • Outfall 005. Upon completion of construction, discharge from the new lined retention basin. Basin will accept wastes from holding basin (coal pile runoff), ash transport water, various sumps, stormwater runoff, FGD wastewater, and various low volume wastes such as boiler blowdown, oily waste treatment, wastes/backwash from the water treatment processes, plant area wash down water, equipment heat exchanger water, landfill leachate, and ash transport water. Upon completion of construction all waste streams previously discharged to ash basin, will be re-routed to the new retention basin. During the transition period, wastewater from the ash pond can also! be discharged (Outfall 002). • Outfalls 002A and 002B: yard sump overflows. • Outfall 007: the emergency spillway of the Ash Pond. The spillway is designed for a flood greater than 100 -year event. Sampling of this spillway is waived due to i nsafe conditions associated with sampling during overflow event. • Internal outfall 001/001A. Yard sump (wastewater from the yard sump 2, the yard sump 3,1 the fly ash silo yard sump, and stormwater) discharging to the retention basin. • Internal Outfall 003: non -contact cooling water from the induced draft fan control house to lintake for cooling water pumps. • Internal Outfall 004: treated FGD wet scrubber wastewater, and stormwater to ttie ash settling basin. • Internal Outfall 06: treated FGD wet scrubber wastewater to the retention basin. During transition period, both outfalls (004 and 006) can be discharging during the transition period. • Internal Outfall l010 from Holding Basin: coal pile runoff, and stormwater to the retention basin. From a facility intersection of County; located at Duke Energy's Marshall Steam Station at the NC Highway 150 and NCSR 1841 in Terrell, Catawba Page 2 of 25 PERMIT No NC0004987 2. Discharge from said treatment works at the locations specified on the attached map into the Catawba River (Lake Norman) which is classified WS -IV and B CA waters in the Catawba River Basin. Page 3 of 25 PERMIT No. NC0004987 PART I A. (1.) Effluent Limitations and;Monitoring Requirements (Outfall 001) [ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.] I During the period beginning on; the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from Outfall 001 (once -through coaling water). Such discharges shall be limited and monitored2 by the Permittee as specified below: EFFLUENT DISCHARGE LIMITATIONS V MONITORING REQUIREMENTS Monthly Daily Measurement Sample Sample CHARACTERISTICS Avera a Maximum 11 Frequency a Location Pump logs or Flow, MGD Monitor & Report Daily similar Effluent readings Temperature November 1 -June 30 33.3 oC Daily Grab Effluent Temperature FJuI 1 -October 31 34 4 oC Daily Grab Effluent Free Available Chlorine 0.2 mg/L' 0.5 mg/L Daily Grab Effluent NDTEs: 1 .Once -through cooling water shall not be chlorinated. Should the facility wish to chlorinate once -through cooling water, Division permission shall be obtained prior to commencement of chlorination. The monitoring requirement and effluent limitations only apply if chlorination is commenced. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). There shall be no discharge of floating solids or visible foam in other than trace amounts. Based upon studies conducted by the permittee and submitted to the Division, it has been determined pursuant to Section 316(a) of the Clean Water Act that the thermal component of the discharge assures the protection and propagation of a balanced, indigenous population of shellfish, fish and wildlife in the receiving water. I I I Page 4 of 25 PERMIT No. NC0004987 A. (2.) Effluent Limitations and Monitoring Requirements (Outfall 002 - normal operation/ decanting) [ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from Outfall 002 (ash settling basin discharge - decanting the free water above the settled ash layer that does not involve mechanical disturbance of the ash). Such discharges shall be limited and monitored4 by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS Monthly Avera a Daily Maximum Measurement Frequency Sample a Sample Location' Flow, MGD Monitor & Report Weekly Pump logs or similar readings Effluent Oil and Grease 9 0 mg/L 12 0 mg/L Monthly Grab Effluent Total Suspended Solids2 20.0 mg/L 50 0 mg/L Monthly Grab Effluent Total Arsenic, µg/L Weekly Grab Effluent Total Copper 1 0 mg/L3 1 0 mg/L3 Weekly Grab Effluent Total Iron 1 0 mg/L3 1 0 mg/L3 Weekly Grab Effluent Total Mercury6 Weekly Grab Effluent Total Selenium, µg/L Weekly Grab Effluent Turbidity5, NTU Monthly Grab Effluent Nitrate/nitrite as N, mg/L Quarterly Grab Effluent Bromide, mg/L Monthly Grab Effluent Total Hardness, mg/L Monthly Grab Effluent Total Nitrogen NO2+NO3+TKN , m L Monitor & Report Quarterly Grab Effluent Total Phosphorus, mg/L Monitor & Report Quarterly Grab Effluent Chronic Toxicity See Part I, Section A. (19) Monthly Grab Effluent pHA Between 6 0 and 9 0 Standard Units Monthly Grab Effluent NOTES: 1 Effluent sampling shall be conducted at the discharge from the ash settling basin prior to mixing with any other waste stream(s). 2 The facility shall continuously monitor TSS concentration when the decanting process commences and the decanting pump shall be shutoff automatically when the one half of the Dally Maximum limit (15 minutes average) is exceeded. Pumping will be allowed to continue if interruption might result in a dam failure or damage. The continuous TSS monitoring only required when the pumps are employed for decanting. 3 The limits for total copper and total iron only apply when chemical metal cleaning wastewaters are being discharged. 4 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). 5 The net turbidity shall not exceed 50 NTU using a grab sample and measured by the difference between the effluent turbidity and the background turbidity. The sample for the background turbidity shall be taken at point in the receiving waterbody upstream of the discharge location, and the background turbidity and the effluent turbidity samples shall be taken within the same 24 hour period. NTU - Nephelometric Turbidity Unit Page 5 of 25 PERMIT No NC0004987 6 The facility shall use EPA method 1631E. 7 The facility shall continuously monitor pH when the decanting process commences and the decanting pump shall be shutoff automatically when 15 minutes running average pH falls below 6.1 standard units or rises above 8.9 standard units. Pumping will be allowed to continue if interruption might ',result in a dam failure or damage. There shall be no discharge of floating solids or visible foam in other than trace amounts. The facility is allowed to drawdown the wastewater in the ash pond to no less than three feet above the ash. The level of water in the ash pond should not be lowered more than 1 ft/week, unless approved by the DEQ Dam Safety Program. The facility shall use a floating pump station with free water skimmed from the basin surface using an adjustable weir.' By November 1, 2018 there shall be no discharge of pollutants in fly ash transport water. This requirement only applies to, fly ash transport water generated after November 1, 2018. By December 31, 2019 the facility shall convert to the disposal of dry bottom ash, as defined in CAMA. In accordance with the House Bill 630 of 2016 (HB630) there shall be ne discharge of pollutants in bottom ash transport water by 12/31/2019 (the date can be changed if the House Bill is amended, in such case the new date will be substituted without re -opening of the permit). This requirement only applies to bottom ash transport water generated after 12/31/2019 or a new date as HB630 may be amended. By December 31, 2023 there shall be no discharge of pollutants in bottom ash transport waxer. This requirement only applies to bottom ash transport water generated after December 31, 2023. The permit can be modified to implement the revised ELGs based on the results of the EPA rulemaking. The limits and conditions in Section A. (3.) of the permit apply when water in the ash settling basin is lowered below the three feet trigger mark. i The facility shall notify DWR Complex NPDES Permitting Unit and DWR Mooresville Regional Office seven calendar days prior to the commencement of the decanting. Page 6 of 25 PERMIT No NC0004987 A. (3.) Effluent Limitations and Monitoring Requirements (Outfall 002 - dewatering phase) [ 15A NCAC 02B.0400 et seq., 02B.0500 et seq.] During the period beginning on the commencement date of the dewatering operation and lasting until expiration, the Permittee is authorized to discharge from Outfall 002 Ash Settling Basin Discharge (Dewatering - removing the interstitial water). Such discharszes shall be limited and monitored4 by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS Monthly Avera a Daily Maximum Measurement Fre uenc Sample a Sample Location' Flow 1.0 MGD Weekly Pump logs or similar readings Effluent Oil and Grease 9.0 mg/L 12 0 mg/L Monthly Grab Effluent Total Suspended Solids2 20 0 mg/ L 50 0 mg/ L Monthly Grab Effluent Total Arsenic 397 1 µg/L 11,121 µg/L Weekly Grab Effluent Total Copper 1 0 mg/L3 1 0 mg/L3 Weekly Grab Effluent Total Iron 1.0 mg/L3 1 0 mg/L3 Weekly Grab Effluent Total Mercury6 Weekly Grab Effluent Total Selenium, µg/L Weekly Grab Effluent Turbidity5, NTU Monthly Grab Effluent Nitrate/nitrite as N, mg/L Quarterly Grab Effluent Bromide, mg/L Monthly Grab Effluent Total Hardness, mg/L Monthly Grab Effluent Total Nitrogen NO2+NO3+TKN , m L Monitor &Report Quarterly Grab Effluent Total Phosphorus, mg/L Monitor & Report Quarterly Grab Effluent Chronic Toxicity See Part I, Section A (19) Monthly Grab Effluent pHA Between 6 0 and 9.0 Standard Units Monthly Grab Effluent NOTES: 1 Effluent sampling shall be conducted at the discharge from the ash settling basin prior to mixing with any other waste stream(s). 2 The facility shall continuously monitor TSS concentration when the dewatering process commences and the dewatering pump shall be shutoff automatically when the one half of the Daily Maximum limit (15 minutes average) is exceeded. Pumping will be allowed to continue if interruption might result in a dam failure or damage. 3 The limits for total copper and total iron only apply when chemical metal cleaning wastewaters are being discharged. 4 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). 5 The net turbidity shall not exceed 50 NTU using a grab sample and measured by the difference between the effluent turbidity and the background turbidity. The sample for the background turbidity shall be taken at point in the receiving waterbody upstream of the discharge location, and the background turbidity and the effluent turbidity samples shall be taken within the same 24 hour period. NTU - Nephelometric Turbidity Unit. 6 The facility shall use EPA method 1631E. Page 7 of 25 PERmiT No. NC0004987 7 The facility shall continuously monitor pH when the dewatering process commences and the dewatering pump shall be shutoff automatically when 15 minutes running average pH falls below 6.1 standard units or rises above 8.9 standard units. Pumping will be allowed to continue if interruption might result in a dam failure or damage. There shall be no discharge of floating solids or visible foam in other than trace amounts. The level of water in the ash pond should not be lowered more than 1 ft/week, unless approved by the DEQ Dam Safety Program. By November 1, 2018 there shall be no discharge of pollutants in fly ash transport water. This requirement only applies to fly ash transport water generated after November 1, 2018. By December 31, 2019 the facility shall convert to the disposal of dry bottom ash, as defined in CAMA. In accordance with the House Bill 630 of 2016 (HB63O) there shall be no discharge of pollutants in bottom ash transport water by 12/31/2019 (the date can be changed if the House Bill is amended, in such case the new date will be substituted without re -opening of the permit). This requirement only applies to bottom ash transport water generated after 12/31/2019 or a new date as HB63O may be amended. By December 31, 2023 there shall be no discharge of pollutants in bottom ash transport water. This requirement only applies to bottom ash transport water generated after December 31, 2023. The permit can be modified to implement the revised ELGs based on the results of the EPA rulemaking. Page 8 of 25 PERMIT No NC0004987 A. (4.) Effluent Limitations and Monitoring Requirements (Outfall 002A) [ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from Outfall 002A (yard sump #1 overflows). Such discharges shall be limited and monitored2 by the Permittee as specified below: NOTES: 1 Effluent samples shall be collected at a point upstream of the discharge to the Catawba River. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). There shall be no discharge of floating solids or visible foam in other than trace amounts. All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words "No Flow" shall be clearly written on the front of the DMR. All samples shall be of a representative discharge. Page 9 of 25 DISCHARGE LIMITATIONS I MONITORING REQUIREMENTS EFFLUENT MonthlyDaily Measurement Sample Sample CHARACTERISTICS Avera a Maximum Frequency a I Locations Flow, MGD Per discharge Estimate Effluent event p H Between 6 0 and 9.0 Standard Per discharge Grab Effluent Units event Total Suspended Solids 30.0 mg/L 100 0 mg/L Per discharge Grab Effluent event Oil and Grease 15 0 mg/L 20.0 mg/L Per discharge Grab Effluent event Total Iron, mg/L Per discharge Grab Effluent event NOTES: 1 Effluent samples shall be collected at a point upstream of the discharge to the Catawba River. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). There shall be no discharge of floating solids or visible foam in other than trace amounts. All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words "No Flow" shall be clearly written on the front of the DMR. All samples shall be of a representative discharge. Page 9 of 25 PERMIT No. NC0004987 A. (5.) Effluent Limitations and Monitoring Requirements (Outfall 002B) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning ',on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from Outfall 002B (yard sump #2 overflows). Such discharges shall be limited and monitored2 by the Permittee as specified below: EFFLUENT DISCHARGE LIMITATIONS MONITORING REQUIREMENTS Monthly Daily Measurement Sample Sample CHARACTERISTICS Avera— Maximum Frequency Type Location' Flow, MGD Per discharge Estimate Effluent event pH Between 6.0 and 9.0 Standard Per discharge Grab Effluent Units event Total Suspended Solids 30 0 mg/L 100 0 mg/L Per discharge Grab Effluent event Oil and Grease 15 0 mg/L 20.0 mg/L Per discharge Grab Effluent event Total Iron, mg/L Per discharge Grab Effluent event NOTES: 1 Effluent samples shall be collected at a point upstream of the discharge to the Catawba River. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). There shall be no discharge of floating solids or visible foam in other than trace amounts. All flows shall be reported on monthly DMRs. Should no flow occur during a given mor_th, the words "No Flow" shall be clearly written on the front of the DMR. All samples shall be of a representative discharge. 10 of 25 PERMIT No NC0004987 A. (6.) Effluent Limitations and Monitoring Requirements (Internal Outfall 003) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from Internal Outfall 003 (non - contact cooling water from the induced draft fan control house). Such discharges shall be limited and monitored2 by the Permittee as specified below: NOTES' 1 Monitoring requirements apply only if chlorine is added to the cooling water. 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 chlorine or total residual chlorine at any one time. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). There shall be no discharge of floating solids or visible foam in other than trace amounts. Limitations shall be met at the discharge point. Page 11 of 25 DISCHARGE LIMITATIONS MONITORING REQUIREMENTS EFFLUENT Monthly Daily Measurement Sample Sample CHARACTERISTICS Avera a Maximum Frequency Type Location Flow, MGD Semi-annually Estimate Effluent Temperature, OC Semi-annually Grab Effluent Total Residual Semi-annually Grab Effluent Chlorine',µ L Free Available 0 2 mg/L 0.5 mg/L Semi-annually Grab Effluent Chlorine' pH Between 6 0 and 9 0 Standard Semi-annually Grab Effluent Units NOTES' 1 Monitoring requirements apply only if chlorine is added to the cooling water. 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 chlorine or total residual chlorine at any one time. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). There shall be no discharge of floating solids or visible foam in other than trace amounts. Limitations shall be met at the discharge point. Page 11 of 25 PERMIT No. NC0004987 A. (7.) Effluent Limitations and Monitoring Requirements (Internal Outfall 004) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from Internal Outfall 004 (treated FGD wet scrubber wastewater to ash settling basin, and stormwater). Such discharges shall be limited and monitored2 by the Permittee as specified below: EFFLUENT DISCHARGE LIMITATIONS I MONITORING REQUIREMENTS Monthly Daily Measurement Sample Sample CHARACTERISTICS Average Maximum I re uenc Tye Location' Pump logs or Flow, MGD Monitor & Report Monthly similar Effluent readings Total Arsenic 8 0 µg/L4 11.0 µg/L4 Quarterly Grab Effluent Total Mercury3, ng/L 356 0 ng/L4 788.0 ng/L4 Quarterly Grab Effluent Total Selenium 12 0 jig/L4 23.0 pg/L4 Quarterly Grab Effluent Ni=rate/mtnte as N 4 4 mg/L4 17 0 mg/L4 Quarterly Grab Effluent pH Between 6 0 and 9 0 Standard Quarterly Grab Effluent Units NoTEs• 1 Sample Location: E - Effluent samples shall be collected from the constructed wetland prior to discharge to the ash settling basin. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). 3 The facility shall use EPA method 1631E 4 The TBEL limits shall become effective on December 31, 2023. This time period is provided in order for the facility to budget, design, and construct the treatment system The facility shall monitor these parameters even before the limits become effective. The permit can be modified to implement the revised ELGs based on the results of the EPA rulemaking. All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words "No Flow" shall be clearly written on the front of the DMR. All samples shall be of a representative discharge. I Page 12 of 25 I i PERMIT No NC0004987 A. (9.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall 005) [ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning upon commencement of operations and lasting until expiration, the Permittee is authorized to discharge from Outfall 005 - Retention Basin discharge. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS Monthly Average Daily Maximum Measurement Sample Sample Fre uenc 2 e Location Flow, MGD Weekly Instantaneous or Estimate Effluent pH Between 6 0 and 9 0 standard units Monthly Grab Effluent TSS 30 0 m L 100 0 m L Monthly Grab Effluent Oil and Grease 15 0 m L 20 0 nig/ L Monthly Grab Effluent Fluonde, m L Monthly Grab Effluent Total Mercury2, n L Monthly Grab Effluent Total Silver, µ L Monthly Grab Effluent Total Iron3 1 0 m L 1.0 m L Monthly Grab Effluent Total Zinc, µ L Monthly Grab Effluent Total Arsenic, µ L Monthly Grab Effluent Total Cadmium, µ L Monthly Grab Effluent Total Chromium, µ L Monthly Grab Effluent Total Co era 68 8 µ L 76 8 µ L Monthly Grab Effluent Total Lead, µ L Monthly Grab Effluent Total Nickel, µ L Monthly Grab Effluent Total Selenium, µ L Monthly Grab Effluent Total Nitrogen NO2 + NO3 + TKN , m L Quarterly Grab Effluent Total Phosphor -us, m L Quarterly Grab Effluent Sulfates, m L Monthly Grab Effluent Chlorides, m L Monthly Grab Effluent Bromide, m L Monthly Grab Effluent TDS, m L Monthly Grab Effluent Total Hardness, m L Monthly Grab Effluent Temperature, OC Monthly Grab Effluent Conductivity, µmho cm Monthly Grab Effluent Chronic Toxicity4 Monthly Grab Effluent Notes: 1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). 2. The facility shall use EPA method 1631E. 3. The limits for total copper and total iron only apply when chemical metal cleaning wastewaters are being discharged. 4. Whole Effluent Toxicity shall be monitored by chronic toxicity (Ceriodaphnia) P/F at 23.0%, see Special Condition A. (19.). 5. The limit and monitoring apply only when the domestic wastewater is being discharged to the basin. The facility shall submit EPA Form 2C for Outfall 005 no later than 180 days from the commencement of the discharge. The facility shall notify DWR/NPDES 30 days prior to the commencement of the discharge from this outfall. There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 14 of 25 PERMIT No. NC0004987 A. (8.) Effluent Limitations and Monitoring Requirements (Internal Outfall 006) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from Internal Outfall 006 (treated FGD wet scrubber wastewater to retention basin). Such discharges shall be limited and monitored2 by the Permittee as specified below: NOTES 1 Sample Location: E - Effluent samples shall be collected from the constructed wetland prior to discharge to the ash settlmg basin. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). 3 The facility shall use EPA method 1631E. 4 The TBEL limits shall become effective on December 31, 2023. This time period is provided in order for the facility to budget, design, and construct the treatment system. The facility shall monitor these parameters even before the limits become effective. The permit can be modified to implement the revised ELGs based on the results of the EPA rulemaking. All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words "No Flow" shall be clearly written on the front of the DMR. All samples shall be of a representative discharge. Page 13 of 25 DISCHARGE LIMITATIONS MONITORING REQUIREMENTS EFFLUENT CHARACTERISTICS MonthlyDaily T Measurement Sample Sample Average Maximum Fre uency Type Location' Pump logs or Flow, MGD Monitor & Report Monthly similar Effluent readin s Total Arsenic 8.0 µg/L4 11.0 µg/L4 Quarterly Grab Effluent Total Mercury3, ng/L 356 0 ng/L4 788.0 ng/L4 Quarterly Grab Effluent Total Selenium 12 0 lig/L4 23 0 pg/L4 Quarterly Grab Effluent riltrate/nitrite as N 4.4 mg/L4 17 0 mg/L4 Quarterly Grab Effluent pH Between 6 0 and 9 0 Standard Quarterly Grab Effluent Units NOTES 1 Sample Location: E - Effluent samples shall be collected from the constructed wetland prior to discharge to the ash settlmg basin. 2 The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). 3 The facility shall use EPA method 1631E. 4 The TBEL limits shall become effective on December 31, 2023. This time period is provided in order for the facility to budget, design, and construct the treatment system. The facility shall monitor these parameters even before the limits become effective. The permit can be modified to implement the revised ELGs based on the results of the EPA rulemaking. All flows shall be reported on monthly DMRs. Should no flow occur during a given month, the words "No Flow" shall be clearly written on the front of the DMR. All samples shall be of a representative discharge. Page 13 of 25 PERMIT No. NC0004987 A. (10.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall 008) [ 15A NCAC 02B.0400 et seq., 02B.0500 et seq.] During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from outfall 008 - Emergency spillway of the ash basin. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQuIREMENTB Monthly Daily Average Maximum MeasurementSample Sample Fre uenc 7a Location Flow, MGD Waived Estimate Effluent H Estimate Waived Grab Effluent TSS Waived Grab Effluent Oil and Grease Grab Waived Grab Effluent The emergency spillway is designed for a flood greater than 100 -year event in Catawba County. Sampling of this spillway is waived due to unsafe conditions associated with sampling during overflow event. Monitoring is required for any other rain event that might trigger a discharge. A. (11.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Internal Outfall 010) [ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.] During the period beginning upon commencement of operation of the yard sump and lasting until expiration, the Permittee is authorized to discharge from Internal outfall 010 - Coal yard runoff and stormwater. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING RE UIREMENTS Monthly Daily Avera a Maximum Measurement SampleSample Frequency a Location Flow, MGD Quarterly Estimate Effluent H Quarterly Grab Effluent TSS 30 0 m L 50.0 m L Quarterly Grab Effluent Oil and Grease 15.0 m L 20.0 m L Quarterly Grab Effluent Notes: 1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system. Please See Special Condition A. (31.). Page 15 of 25 PERMIT No. NC0004987 A. (12.) ADDITIONAL CONDITIONS AND DEFINITIONS [_NCGS 143-215.3 (a) (2) and NCGS 143-215.66] 1. EPA methods 200.7 or 200.8 (or the most current versions) shall be used for analyses of all metals except for total mercury (EPA Method 1631E). 2. All effluent samples for all external outfalls shall be taken at the most accessible location after the final treatment but prior to discharge to waters of the U.S. (40 CFR 122.416)). 3. The term low volume waste sources means wastewater from all sources except those for which specific limitations are otherwise established in this part (40 CFR 423.11 (b)). 4. The term chemical metal cleaning waste means any wastewater resulting from cleaning any metal process equipment with chemical compounds, including, but not limited to, boiler tube cleaning (40 CFR 42 3. 11 (c)). 5. The term metal cleaning waste means any wastewater resulting from cleaning [with or without chemical cleaning compounds] any metal process equipment including, but not limited to, boiler tube cleaning, boiler fireside cleaning, and air preheater cleaning (40 CFR 423.11 (d)). 6. For all outfalls where the flow measurement is to be "estimated" the estimate can be done by using calibrated V -notch weir, stop -watch and graduated cylinder, or other method approved by the Division. 7. The term "FGD wet scrubber wastewater" means wastewater resulting from the use of the flue -gas desulfurization wet scrubber. A. (13.) TOXICITY RE -OPENER CONDITION [NCGS 143-215.3 (a) (2) and NCGS 143-215.66] 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. (14.) APPLICABLE STATE LAW (STATE ENFORCEABLE ONLY) [NCGS 143-215.1(b)] The facility shall meet the requiremei permit may be reopened to include n A. (15.) POLYCHLORINATED BIPHENYL 4 [40 CFR 4231 There shall be no discharge of poly commonly used for transformer fluid. A. (16.) BIOCIDE CONDITION [NCGS 143-215.1] is of Senate Bill 729 (Coal Ash Management Act). This w requirements imposed by Senate Bill 729. biphenyl compounds such as those 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 Page 16 of 25 PERMIT No NC0004987 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 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. (17.) INTAKE SCREEN BACKWASH [NCGS 143-215.1 (b)] Continued intake screen backwash discharge and overflow from the settling basin are permitted without limitations or monitoring requirements. A. (18.) BEST MANAGEMENT PRACTICES [NCGS 143-215.1 (b)] It has been determined from information submitted that the plans and procedures in place at Marshall Steam Station are equivalent to that of a Best Management Practice (BMP) . A. (19.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT — OUTFALL 002 AND OUTFALL 005 [ 15A NCAC 02B .0200 et seq.] The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to Ceriodaphnia dubia at an effluent concentration of 23.0% for decanting (Outfall 002) and Outfall 005, and 2.6% for dewatering (Outfall 002). The permit holder shall perform at a minimum, monthly monitoring using test procedures outlined in the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised- December 20 10) or subsequent versions. 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. If the monthly test procedure 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 -December 2010) or subsequent versions. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR -1) for the months in which tests were performed, using the parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT -3 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch Page 17 of 25 PERMIT No. NC0004987 1621Mail Service Center Raleigh, North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section e no later than 30 days after the nd 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 tream: 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, monitoring will be required during the following month. Assessment of toxicity compliance is based on the toxicity testing month. Should any test data from this monitoring requirement 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 con 'ditions 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 c�9mpleted no later than the last day of the month following the month of the initial monitoring. �I A. (20.) ASH SETTLING BASIN [NCGS 143-215.1 (b)] Beginning on the effective date of this permit and lasting until expiration, there shall be no discharge of plant wastes to the ash pond unless the permittee provides and maintains at all times a minimum)) free water volume equivalent to the sum of the maximum 24-hour plant discharges plus all direct rainfall and all runoff flows to the pond resulting from a 10 -year, 24-hour rainfall event, when using a runoff coefficient of 1.0. During the term of the permit, the permittee shall remove settled material from the ponds or otherwise enlarge the available storage capacities in order to maintain the required minimum volumes at all times. Annually the permittee shall determine and report to the permit issuing authority: (1) the actual free water volume of the ash pond, (2) physical measurements of the dimensions of the free water volume in sufficient detail Page 18 of 25 PERMIT No. NC0004987 to allow validation of the calculated volume, and (3) a certification that the required volume is available with adequate safety factor to include all solids expected to be deposited in the ponds for the following year. Any changes to plant operations affecting such certification shall be reported to the Director within five days. NOTE: In the event that adequate volume has been certified to exist for the term of the permit, periodic certification is not needed. A. (21.) CHEMICAL METAL CLEANING WASTES [40 CFR 4231 It has been demonstrated that under certain conditions it is possible to reduce the concentration of metals in boiler cleaning wastes in the range of 92 to 99+ percent by treatment in ash ponds. Because of dilution problems, and the existence of boundary interface layers at the extremities of the plume, it is difficult to prove beyond doubt that the quantity of iron and copper discharged will always be less than one milligram per liter times the flow of metal cleaning when treated in this manner. The application of physical/ chemical methods of treating wastes has also been demonstrated to be effective in the treatment of metal cleaning wastes. However, the effectiveness of ash pond treatment should be considered in relation to the small differences in effluent quality realized between the two methods. It has been demonstrated that the presence of ions of copper, iron, nickel, and zinc in the ash pond waters was not measurably increased during the ash pond equivalency demonstration at the Duke Energy's Marshall Steam Station. Therefore, when the following conditions are implemented during metal cleaning procedures, effective treatment for metals can be obtained at this facility: (1) Large ash basin providing potential reaction volumes. (2) Well-defined shallow ash delta near the ash basin influent. (3) Ash pond pH of no less than 6.5 prior to metal cleaning waste addition. (4) Four days retention time in ash pond with effluent virtually stopped. (5) Boiler volume less than 86,000 gallons. (6) Chemicals for cleaning to include only one or more of the following: (a) Copper removal step- sodium bromate, NaBr03; ammonium carbonate, (NH4)2CO3; and ammonium hydroxide, NH40H. (b) Iron removal step -hydrochloric acid, HCl; and ammonium bifluoride, (NH4)BF2 and proprietary inhibitors. (7) Maximum dilution of wastes before entering ash pond 6 to 1. (8) After treatment of metal cleaning wastes, if monitoring of basin effluents as required by the permit reveals discharges outside the limits of the permit, the permittee will re -close the basin discharge, conduct such in -basin sampling as necessary to determine the cause of nonconformance, will take appropriate corrective actions, and will file a report with EPA including all pertinent data. A. (22.) FLOATING MATERIALS [NCGS 143-215.1 (b)] Page 19 of 25 i I PERMIT No. NC0004987 I I The Permittee shall report all �yisible discharges of floating materials, such as an oil sheen, to the Director when submitting DMRs. A. (23.) CHEMICAL DISCHARGES I [NCGS 143-215.1 (b)] i I 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 waters of the United States is prohibited unless specifically authorized elsewhere in this permit. 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 inl sewage treatment is authorized. Use of restricted use pesticides for lake management purposes by applicators licensed by the N.C. Pesticide Board is allowed. A. (24.) PRIORITY POLLUTANT ANALYSIS - OUTFALL 002 [NCGS 143-215.1 (b)] The Permittee shall conduct a priority pollutant analysis (in accordance with 40 CFR Part 136) once per permit cycle at outfall 002 and submit the results with the application for permit renewal. A. (25.) WAIVERS [NCGS 143-215.1 (b)] Nothing contained in this permit right to a hearing it may have pur A. (26.) STRUCTURAL INTEGRITY [ 15A NCAC 02K.02081 The facility shall meet the dam 2K. L be construed as a waiver by permittee or any t to State or Federal laws or regulations. OF ASH POND DAM and dam safety requirements per 15A NCAC A. (27.T CLEAN WATER ACT SECTION 316(x) THERMAL VARIANCE [40 CFR 125, Subpart H] The thermal variance granted under S'( NPDES permit. Should the permittee variance beyond the term of this permi submitted in accordance with 40 CFR not later than 180 days prior to permit for continuation such as a) plant opera and are expected to remain so for the t changes to plant discharges or other di interact with the thermal discharges; a community of the receiving water body determination. ction 316(a) terminates on expiration of this rish a continuation of its 316(a) thermal :, reapplication for such continuation shall be 'art 125, Subpart H and Section 122.21(1) (6) expiration. Reapplication shall include a basis Ling conditions and load factors are unchanged Irm of the reissued permit; b) there are no scharges in the plant site area which could id c) there are no changes to the biotic which would impact the previous variance Paye 20 of 25 PERMIT No. NC0004987 The next 316(a) studies shall be performed in accordance with the Division of Water Resources approved plan. The temperature analysis and the balanced and indigenous study plan shall conform to the specifications outlined in 40 CFR 125 Subpart H, the EPA's Draft 316(a) Guidance Manual, dated 1977, and the Region 4 letter to NCDENR, dated June 3, 2010. EPA shall be provided an opportunity to review the plan prior to the commencement of the study. Copies of all the study plans, study results, and any other applicable materials should be submitted to: 1) Electronic Version Only (pdf and CD) Division of Water Resources WQ Permitting Section - NPDES 1617 Mail Service Center Raleigh, NC 27699-1617 2) Electronic Version (pdf and CD) and Hard Copy Division of Water Resources Water Sciences Section 1621 Mail Service Center Raleigh, NC 27699-1621 A. (28.) CLEAN WATER ACT SECTION 316 (B) [40 CFR 125.95] The permittee shall comply with the Cooling Water Intake Structure Rule per 40 CFR 125.95. The permittee shall submit all the materials required by the Rule with the next renewal application. A. (29.) FISH TISSUE MONITORING NEAR ASH POND DISCHARGE — OUTFALL 002 [NCGS 143-215.3 (a) (2)] The facility shall conduct fish tissue monitoring annually and submit the results with the NPDES permit renewal application. The objective of the monitoring is to evaluate potential uptake of pollutants by fish tissue near the Ash Pond discharge. The parameters analyzed in fish tissue shall be arsenic, selenium, and mercury. The monitoring shall be conducted in accordance with the Sampling Plan approved by the Division. The plan should be submitted to the Division within 180 days from the effective date of the permit. Upon approval, the plan becomes an enforceable part of the permit. Copies of all the study plans, study results, and any other applicable materials should be submitted to: 1) Electronic Version Only (pdf and CD) Division of Water Resources WQ Permitting Section - NPDES 1617 Mail Service Center Raleigh, NC 27699-1617 2) Electronic Version (pdf and CD) and Hard Copy Division of Water Resources Water Sciences Section 1621 Mail Service Center Page 21 of 25 PERMIT No. NC0004987 Raleigh, NC 27699-1621 A. (30.) INSTREAM MONITORING [ 15A NCAC 0213.0500 ET SEQ.] The facility shall conduct semiannual instream monitoring (approximately one mile upstream and approximately one mile downstream of the ash pond discharge) for arsenic, selenium, mercury (method 1631E), chromium, lead, cadmium, copper, zinc, bromide, total hardness, and total dissolved solids (TDS). Instream monitoring should be conducted at the stations that have already been established through the BIP monitoring program. The monitoring results shall be reported on the facility's Discharge Monitoring Reports and included with the NPDES permit renewal application. A. (31.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS [G.S. 143-215.1(b)] I Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December`21, 2015. NOTE: This special condition su Part H of this permit (Standard C 1. • Section B. Signatory F (11.) • Section D. (2.) Reporting • Section D. (6.) Records Re • Section E. (5.) Monitoring The permittee shall report d: DWR's Electronic Discharge Monitoring results obtained during each month and submitted electroi permitted facilities to enter monitor the internet. Until such time that i EPA's Cross -Media Electronic Repo required to submit all discharge mi eDMR and will be required to comr and submitting one signed original the following address: s or supersedes the following sections within for NPDES Permits) : is ction E. monitoring data electronically using the NC ng Report (eDMR) internet application. the previous month(s) shall be summarized for ically using eDMR. The eDMR system allows [ng data and submit DMRs electronically using rie state's eDMR application is compliant with -ting Regulation (CROMERR), permittees will be nitoring data to the state electronically using �ete the eDMR submission by printing, signing, and a copy of the computer printed eDMR to NC DEQ / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Paye 22 of 25 PERMIT No NC0004987 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, 2020, 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)]. 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: https://www.federalregister.gov/documents/2015/10/22/2015- 24954 /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 Page 23 of 25 PERMIT No. NC 0004987 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: / / deg.nc. gov /about/ divisions /water -resources / edmr 4. Signatory Requirements [Supplements Section B. (11.1 (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://deg.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, thaiffiis document and all attachments were prepo_red 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 thosepersons directly responsible four 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. " Page 24 of 25 PERMIT No NC0004987 5. Records Retention jSupplements Section D. (6.11 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. (32.) COMPLIANCE BOUNDARY [ 15A NCAC 02L.0107] The compliance boundary for the disposal system shall be specified in accordance with 15A NCAC 02L .0107(a) or (b) dependent upon the date permitted. An exceedance of groundwater standards at or beyond the compliance boundary is subject to remediation action according to 15A NCAC 02L .0106(c), (d), or (e) as well as enforcement actions in accordance with North Carolina General Statute 143-215.6A through 143-215.6C. Page 25 of 25 002A and 002B 001 ` � _, \ d•� l ��_`��I� /_s!f - .� it %Y Facility Outfall Information Outfall #: 001 Outfall #: 002A and 002B Receiving Stream: Catawba River Receiving Stream: Catawba River Latitude: 35°35'43" Latitude: 35°35'51" �•�': �'a:CJi,' I I Longitude: 80°57'36" Longitude for 002B: 80057'34" Outfall #: 002 Outfall #: 005 Receiving Stream: Catawba River Receiving Stream: Catawba River Latitude: 35°36'21" Latitude: 35°35'58" Longitude: 80°57'35" Longitude: 80°57'50" t Facility Outfall Information Outfall #: 001 Outfall #: 002A and 002B Receiving Stream: Catawba River Receiving Stream: Catawba River Latitude: 35°35'43" Latitude: 35°35'51" Longitude: 80°57'52" Longitude: 80°57'36" Longitude for 002B: 80057'34" Outfall #: 002 Outfall #: 005 Receiving Stream: Catawba River Receiving Stream: Catawba River Latitude: 35°36'21" Latitude: 35°35'58" Longitude: 80°57'35" Longitude: 80°57'50" Facility Location North Outfall #: 007 Duke Energy, LLC Receivine Stream: Catawba NC0004987 Latitude: 35°36'22" LOneitude: 80°57'32" Marshall Steam Station