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Home My WebLink AboutNCG500139_renewal application_20191119DUKE ENERGY® November 18, 2019 Mr. John Hennessy Division of Water Resources 1617 Mail Service Center Raleigh, North Carolina 27699-1617 2500 Fairfax Road Greensboro NC 27401 RECEIVED DEC 0 2 2019 NCDEQIDWRINPDES Subject: Duke Energy Carolinas, LLC -NPDES Permit Application Renewal ofNPDES General Permit - #NCG500000 Bear Creek Hydroelectric Plant-NCG500124 Blewett Falls Hydroelectric Plant-NCG500190 Bridgewater Hydroelctric Plant NCG500102 Cedar Cliff Hydroelctric Plant-NCG500125 Cowans Ford Hydroelectric Plant - NCG500139 Lookout Shoals Hydroelectric Plant - NCG500120 Marshall Hydroelectric Plant-NCG500591 Mountain Island Hydroelectric Plant - NCG500131 Nantahala Hydroelectric Plant - NCG500136 Oxford Hydroelectric Plant - NCG500119 Rhodhiss Hydroelectric Plant - NCG500108 Tennessee Creek Hydroelectric Plant-NCG500123 Thorpe Hydroelectric Plant-NCG500127 Tillery Hydroelectric Plant - NCG500189 Tuckasegee Hydroelectric Plant - NCG500126 Walters Hydroelectric Plant - NCG500188 Dear Mr. Hennessy: Duke Energy requests the subject general permit be renewed and reissued. The above referenced permit expires July 31, 2020. As mandated by North Carolina Administrative Code 15A NCAC 21-1.0105 (e), this permit application for renewal is being submitted at least 180 days prior to expiration of the current permit. Please find enclosed one original and one copy of the Notice of Renewal Intent for each of the hydroelectric facilities named above. Duke Energy respectfully requests notification that this application is complete and thank you in advance for your assistance with this renewal. Please contact me at (336)-854-4916 or at Lori.Tol lie@duke- eneruN,.corn should you have any questions. Sincerely,,,,, �� Lt ) Lori Tollie — Senior Environmental Specialist FqCDENR North Carolina Department of Environment and Natural Resources Division of Water Resources Pat McCrory Thomas A. Reeder John E. Skvarla, III Governor Director Secretary NOTICE OF RENEWAL INTENT [Required by ISA NCAC 0211 .01271dil; [term definition see 15A NCAC 0211.0103(19)] Application for renewal of existing coverage under General Permit NCG500000 RECEIVED Existing Certificate of C'overa ee (CoC): NCG500 t 39 - DEC 0 2 2019 (Press Tab to navigate form) NCDEQ/DINR/NPDES 1) Mailing address of facility owner/operator: (address to which all correspondence should he mailed Company Name Duke Energy Carolinas, LLC Owner Name Lori Tollie Street Address 2500 Fairfax Road City Greensboro State NC Telephone # 336 - 854- 4916 Fax # - - Email Address Lori.Tollie@duke-energy.com 2) Location of facility producing discharge: Facility Name Cowan's Ford Hydroelectric Station Facility Contact Glenn A. Long Street Address 2.57 Duke Lane City Stanley State NC County Lincoln Telephone # 980 - 722 - 0678 Fax # - - Email Address Glenn.Long@duke-energy.com 3) Description of Discharge: a) Is the discharge directly to the receiving stream? ZIP Code 27407 - ZIP Code 2181,64 - ® Yes ❑ No — Please submit a site map with the pathway to the potential receiving waters clearly marked. This includes tracing the pathway of the storm sewer to the discharge point, if the storm sewer is the only viable means of discharge. b) Number of discharge outfalls (ditches, pipes, channels, etc. that convey leastei-eater from the property'): Fourteen Page 1 of 3 NCG500000 Renewal Application c) What type of wastewater is discharged? Indicate which discharge points, if more than one. ® Non -contact cooling water Outfall (s) #: reference attached drawings/table ❑ Boiler Blowdown Outfall (s) #: ❑ Cooling Tower Blowdown Outfall (s) #: ❑ Condensate Outfall (s) #: ® Other Outfall (s) #: reference attached dravyings/table (Please describe "Other"): d) Volume of discharge per each discharge point (in.GPD): #001: GPD #002: _= GPD #003: GPD #004: GPD 4) Please check the type of chemical[s] added to the wastewater for treatment, per each separate discharge point (if'applicable, use separate sheet): ❑ Chlorine ❑ Biocides ❑ Corrosion inhibitors ❑ Algaecide ❑ Other ® None If Lny box other than None is checked, a completed Biocide 101 Form and manufacturers' information on the additive must be submitted to the following address for approval: NC DENR / DWR / Environmental Sciences Section Aquatic Toxicology Unit 1621 Mail Service Center Raleigh, NC 27699-1621 5) Is there any type of treatment being provided to the wastewater before discharge? (i.e., retention ponds, settling ponds, etc.) ❑ Yes - Please include design specifics (i.e., design volume, retention time, surface area, etc.) with submittal package. Existing treatment facilities should be described in detail. ® No 6) Discharge Frequency: a) The discharge is: ® Continuous ❑ Intermittent ❑ Seasonal i) If the discharge is intermittent, describe when the discharge will occur: ii) If seasonal, check the month(s) the discharge occurs: ❑ Jan ❑ Feb ❑ Mar. ❑ Apr ❑ May ❑ Jun ❑ Jul ❑ Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑ Dec. b) How many days per week is there a discharge? seven c) Please check the days discharge occurs: ® Sat. ® Sun. ® Mon. ® Tue. ® Wed. ® Thu. ® Fri. Page 2 of 3 NCG500000 Renewal Application Additional Application Requirements: The following information must be included in duplicate [original + 1 copy] with this application or it will be returned as incomplete. ➢ Site map. If the discharge is not directly to a stream, the pathway to the receiving stream must be clearly indicated. This includes tracing the pathway of a storm sewer to its discharge point. ➢ Authorization for representatives. If this application will be submitted by a consulting engineer (or engineering firm), include documentation from the Permittee showing that the consultant submitting the application has been designated an Authorized Representative of the applicant, per 15A NCAC 0211 .01IK121(1). CERTIFICATION I certify that I am familiar with the information contained in this application and that to the best of my knowledge and belief such information is true, complete, and accurate. Printed Name of Person Signing: Randy C. Herrin (Please review 15A 1v`<:AC 0211 .01001- for authorized signing officials) Signature of App .. aunt North Carolina General Statute ti 143-215.613 provides that: Title: Vice President Carolinas Regulated Renewabies Date Signed Any person who knowingly makes any false statement representation, or certification in any application, record, report, plan, or other document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the Commission implementing this Article, shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed ten thousand dollars ($10,000). _k 1-.S.C. Section 1001 provides a punishment by a fine or imprisonment not more than 5 years, or both, for a similar offense. This Notice of Renewal Intent does NOT require a separate fee. The permitted facility already pays an annual fee for coverage under NCG500000. Mail the original and one copy of the entire package to: NC DENR / DWR / Water Permitting Section 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Attn: Charles Weaver Page 3 of 3 Attachment 1 Cowan's Ford Hydra — NP®ES Outtall Flows Notes: 'These outfalls are maintained for emergency bypass procedures only. During normal operation, these sumps discharge into the station sump (outfall 013). 2 Discharge is due to seepage through dam. Flow changes with seasonal changes in temperature. Maximum flow occurs during winter and is at a minimum during summer. REVISIONS LEGEND 001 --- UNIT I TURBINE SUMP PUMP DISCHARGE. (MAINTAINED FOR EMERGENCY BYPASS PROCEDURES ONLYI 002 --- UNIT 1 GENERAT04 AIR COOLERS COOLING WATER DISCHARGE. 003 --- UNIT I GENERATO3 THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 004 --- UNIT 2 TURBINE Suw PUMP DISCHARGE. (MAINTAINED FOR EMERGENCY BYPASS PROCEDURES ONLYI 005 --- UNIT 2 GENERATOR AIR COOLERS COOLING WATER DISCHARGE_ 006 --- UNIT 2 GENERATOR THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 007 --- UNIT 3 TURBINE SUMP PUMP DISCHARGE. (MAINTAINED FOR EMERGENCY BYPASS PROCEDURES ONLY) SOB --- UNIT 3 GENERATOR AIR COOLERS COOLING WATER DISCHARGE. 009 --- UNIT 3 GENERATOR THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 010 --- UNIT 4 TURBINE SUMP PUMP DISCHARGE. (MAINTAINED FOR EMERGENCY BYPASS PROCEDURES ONLYI 011 --- UNIT 4 GENERATOR AIR COOLERS COOLING WATER DISCHARGE. 012 --- UNIT 4 GENERATOR THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 013 --- STATION SUMP PlfilP DISCHARGE TO TAILWATER. (MISCELLANEOUS POWERHOUSE DRAINS] 014 --- INSPECTION GALLERY SUMP PUMP DISCHARGE. NATIONAL POLLUTANT OISCNAAGE ELIMINATION SYSTEM (NPOES) POINT SOURCE O15CNAAGES OM NO. CF-NPOES-I TOP OF EMBANKMENT EL 775.00 TOP OF EMBAN04ENT EL 775.00 ELEVATION ( LOOK I NG UPSTREAM) LEGEND 001 --- UNIT I TURBINE SUMP PUMP DISCHARGE. IMAINTAINEO FOR EMERGENCY BYPASS PROCEDURES ONLY1 092 UNIT I GENERATOR AIR COOLERS COOLING WATER DISCHARGE. 003 --- UNIT ! GENERATOR THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 004 ---'UNIT 2 TURBINE SUMP pUMp DISCHARGE. (MAINTAINED FOR EMERGENCY BYPASS PROCEDURES ONLY) 005 --- UNIT 2 GENERATOR AIR COOLERS COOLING WATER DISCHARGE. 086 --- UNIT 2 GENERATOR THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 007 --- UNIT 3 TURBINE SUMP PUMP DISCHARGE. tMAINTAINED FOR EMERGENCY BYPASS PROCEDURES ONLY) 008 --- UNIT 3 GENERATOR AIR COOLERS COOLING WATER DISCHARGE. 009 --- UNIT 3 GENERATOR THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 1-- UNIT E. MAINTAINED IFOP. EMERGENCYNE SUMP pl" DBYPPASSGPROCEDURES My) 0E! --- UNIT 4 GENERATOR AIR COOLERS COOLING WATER DISCHARGE. 012 --- UNIT 4 GENERATOR THRUST BEARING OIL COOLER COOLING WATER DISCHARGE. 013 --- STATION SUMP PUMP DISCHARGE TO TAILWATER. tMISCELLANEOUS POWERHOUSE ORAINSI 014 --- INSPECTION GALLERY SUMP PUMP DISCHARGE. NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM INPOESI POINT SOURCE DISCHARGE REVISIONS orbr r>w .n+t perE r„�crm OMM NUM CF—NPOES-2