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Home My WebLink AboutNC0027332_Renewal Application_20170227ONA Tennessee Valley Authority, 1101 Market Street, BR4A, Chattanooga, Tennessee 37402 February 16, 2017 Ms. Wren Thedford North Carolina Department of Environmental Quality Division of Water Resources NPDES Unit 1617 Mail Service Center Raleigh, North Carolina 27699-01617 Dear Ms. Thedford: RECE1'EVI Pm NC0 �Q/D FEB 2 r 2VuR Wafer 011 �ormi*iSecton TENNESSEE VALLEY AUTHORITY (TVA) - CHATUGE HYDRO (CTH)- NPDES PERMIT NO. NC0027332 - PERMIT RENEWAL APPLICATION Enclosed are one signed original and two copies of a complete NPDES permit renewal application for CTH. There have been no changes since the issuance of the last permit. Solids may be removed from the station sump manually or using a vacuum truck or similar device. The waste is analyzed for hazardous constituents and characterized for appropriate disposal. Any oil absorbent materials removed from the station sump are handled in a similar manner. I TVA requests that the following, which is consistent with language currently in General Permit No. NCG500000 for discharges associated with hydroelectric operations, be included in the renewed NPDES permit for CTH: Submittal of monthly Discharge Monitoring Reports (DMRs) shall not be required except upon demand by the Division. This section supersedes the requirement for submitting monthly Discharge Monitoring Reports (DMRs) specified in Part ll., Section D.2. of this permit. Even though the submittal of the monthly monitoring reports to the Division is suspended, all monitoring requirements remain. The data will be maintained on site for a period of not less than three years. TVA requests a 30 -day period between the issuance date and the effective date of the reissued permit. If you have questions or need additional information, please contact Mike Stiefel by email at mbstiefel@tva.gov or by phone at (423) 751-6844. Sincerely, C� i Terry Leek Senior Manager Water Permits, Compliance, and Monitoring Enclosures NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. Mail the complete application to: N. C. Department of Environment and Natural Resources Division of Water Quality / NPDES Unit 1617 Mail Service Center, Raleigh, NC 27699-1617 NPDES Permit Number INCO027332 1. Contact Information: Owner Name Facility Name Mailing Address City State / Zip Code Telephone Number Fax Number e-mail Address Please print or type. Tennessee Valley Authority - David W. Sorrick, Sr. VP Power Operations Chatuge Hydro Plant 1101 Market Street, LP 3K Chattanooga Tennessee 37402 (423) 751-4096 (423) 751-8978 dwsorrick@tva.gov 2. Location of facility producing discharge: Check here if same as above ❑ Street Address or State Road Chatuge Dam Road City near Hayesville State / Zip Code North Carolina, 28904 County Clay 3. Operator Information: Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the Operator in Responsible Charge or ORC) Name Tennessee Valley Authority Mailing Address 1101 Market Street, LP 3K City Chattanooga State / Zip Code Tennessee 37402 Telephone Number (423) 751-4096 Fax Number (423) 751-7802 4. Ownership Status: Page 1 of 5 C -MI 10108 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. 10. Amount of principal product produced or raw material consumed (List specific amounts consumed and/or units of production over the last three _years) 11. Frequency of discharge: Continuous* ® Intermittent ❑ If intermittent: Days per week discharge occurs: Duration: * While individual discharges may not flow continuously, it is unlikely that there would be no discharge from any outfall on any given day unless the unit is in outage. 12. Types of wastewater discharged to surface waters only Discharge Product Produced or Raw Material Consumed AVERAGE Product Produced or Raw Material Consumed PEAK per Day 81 mWh generation 336 mWh generation per Month 2,463 mWh generation 9,708 mWh generation per Year 29,561 mWh generation 41,798 mWh generation 11. Frequency of discharge: Continuous* ® Intermittent ❑ If intermittent: Days per week discharge occurs: Duration: * While individual discharges may not flow continuously, it is unlikely that there would be no discharge from any outfall on any given day unless the unit is in outage. 12. Types of wastewater discharged to surface waters only Discharge Flow* GALLONS PER DAY Sanitary - monthly average No discharge to surface water Utility water, etc. - monthly average N/A Process water - monthly average 960,000 (Outfall 001, Station Sump = 360,000 and Outfall 002, Unwatering Sump = 600,000**) Stormwater - monthly average N/A Other - monthly average Explain: 648,000 (Outfall 003 - Noncontact Cooling Water) Monthly Average 1,608,000 total discharge (all types) *Note: Flows are estimated for average operating conditions using pump rated capacity or design capacity. **Unwatering operations (Outfall 002) are intermittent and typically occur approximately once every two years. See attached flow schematic. 13. Number of separate discharge points: 3 Outfall Identification number(s) Outfalls 001, 002, and 003 14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including latitude and longitudes Hiwassee River (See attached map) Page 3 of 5 C -MI 10/08 NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial Minor industrial, manufacturing and commercial facilities. 18. Is this facility located on Indian country? (check one) Yes ❑ No 19. Applicant Certification I certify that I am familiar with the information contained in the application and that to the best of my knowledge and belief such information is true, complete, and accurate. C. Michael Richards Plant Manager Printed name of Person Signing Title of Applicant North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or certification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offense.) Page 5 of 5 C -MI 10/08 Generator Air and Bearing Cooling Water Draft Tube Unwatering Operations PowerHouse Floor Drains and Penstock Envelope Leakage Wheel Pit Leakage Unit 1 INTAKE FROM CHATUGE RESERVOIR (HIWASSEE RIVER) U nwateri ng Sump Station Sump Outfall 0_648 MGD _ . — • * 003 0 ........................7:2 MGD ................ )0, 002 o .......... .. ........1:44 MGD ...> 001 .......................... 0 .......... Potable Sanitary Sewage Drains I•••••••• Septic Tank Subsurface Disposal Field Water Symbols: Raw River Water, Potable Water, Precipitation, Leakage, or Ground Water — — - Non -Contact Cooling Water ••••"•'•" Other Wastewater 0 Motor -Driven Pump Notes: 1. All effluents discharge into the Hiwassee River. 2. Flows are based on pump -rated capacities and maximum design flows. Tennessee Valley Authority Chatuge Hydro Plant NPDES Permit No. NC 0027332 Clay County, North Carolina February 2017 • '_ , =Tq� k \ � � `� - • �_ fir• •_ Chatuge Hydro Plant Outfalls 001 - 003 NMK t6.a IQs ? CHATUGE t" i `x'� ower tower , r �.. _ ` t Plant Intake tt F� � � � �; i `1• /� � -� i _ s 933 ,. I �� - � � f i RH 47 G, Lt -0 SM � — Fl 1 31. r 1r /9 SS+vs�e 4menti.. . McClure; A~SIN gR cOVNTy --'4r y 'a• PARR ',� � FI / ' t,/ •` yy Chattel -! SM HMK,18' .moo_ J' [ 'TTX A-LA'I ►Tr+ANAL Tennessee Valley Authority Chatuge Hydro Plant — NCO027332 Sate Grid/Quad: G3SE/Hayesville, NC Drainage Basin: Hiwassee River Latitude: 350 01' 09" N Longitude: 830 47'30" W Receivinq Stream: Hiwassee River Stream Class: C N Facility Location not to scale NPDES Permit No. NCO027332 Cherokee County