RC-19-0012, NPDES Permit No. SC0030856 Renewal Application, Operational Status
| ML19056A418 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 01/31/2019 |
| From: | GeoSyntec Consultants, South Carolina Electric & Gas Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19056A440 | List: |
| References | |
| RC-19-0012 | |
| Download: ML19056A418 (9) | |
Text
Prepared for SCE&G, VC Summer Station .
. Highway 215 and Bradham Blvd Jenkinsville, South Carolina 29065 OPERATIONAL STATUS V.C. SUMMER NUCLEAR STATION UNIT 1.
40 CFR § 122.2l(r)(8)
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- SOUTH CAROLINA ELECTRIC & GAS COMPANY JE,NKINSVILLE, SOUTH CAROLINA Prepared by Geosyntec C>
consultants engineers I scientists I innovators 1255 Roberts Boulevard, Suite 200 Kennesaw, Georgia 30144 Project Number GK5356 January 2019
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consultants TABLE OF CONTENTS
- 1. INTRODUCTION ................................................................................................. 1
- 2. OPERATIONAL STATUS .................................................................................. 2
- 3.
SUMMARY
AND CONCLUSION ..................................................................... 3
- 4. REFERENCES CITED ........................................................................................ 4 LIST OF FIGURES Figure 1 Site Vicinity ofVCSNS Unit 1 GK5356/GA190027_Draft OpStatus VCSNS.docx 01.15.2019
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consultants LIST OF ACRONYMS AND ABBREVIATIONS CFR Code of Federal Regulations cfs cubic feet per second CWA Clean Water Act CWIS cooling water intake structure FERC Federal Energy Regulatory Commission fpm feet per minute fps feet per second ft feet FPSF Fairfield Pumped Storage Facility gpm gallons per minute hp horsepower MSL mean sea level J\tlw . megawatts **
NGVD29 National Geodetic Vertical Datum of 1929 NPDES National Pollutant Discharge Elirr_i_ination System NRC Nuclear Regulatory Commission psi pounds per square inch rpm revolutions per minute SCDHEC South Carolina Department of Health and Environmental Control SCE&G South Carolina Electric and Gas Company VCSNS Virgil C. Summer Nuclear Station GK5356/GAI 90027_ Draft OpStatus VCSNS.docx ii 01.15.2019
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consultants
- 1. INTRODUCTION This report provides a description of the operational status for South Carolina Electric &
Gas Company's (SCE&G's) Virgil C. Summer Nuclear Station (VCSNS) Unit 1.
VCSNS Unit 1 is an existing nuclear-powered generating facility located on Monticello Reservoir in the Broad River basin near Jenkinsville, Fairfield County, South Carolina.
SCE&G operates VCSNS Unit 1 under National Pollutant Discharge Elimination System (NPDES) Permit Number SC0030856. The information provided in this report supports the facility's compliance with section 316(b) of the Clean Water Act.
The U.S. Environmental Protection Agency published 316(b) regulations for cooling water intake structures (CWISs) at existing power generating and manufacturing facilities that became effective October 14, 2014. The final 3 l 6(b) rule requires the submittal of applicable CWIS- information under 40 CFR § 122.2l(r) to the South Carolina Department of .Health and Environmental Control (SCDHEC), the NPDES permitting agency in South Carolina.
As provided in the NPDES permit application requirements at 40 CFR § 122.21(r)(8),
the owner/operator must submit:
A description of the operational status of each generating, production, *or process unit that uses cooling water, including but not limited to:
(i) For power production or steam generation, descriptions of individual unit operating status including age of each unit, capacity utilization rate (or equivalent) for the previous 5 years, including any extended or unusual outages that significantly affect current data for flow, impingement, entrainment, or other factors, including identification of any operating unit with a capacity utilization rate of less than 8 percent averaged over a 24-month block contiguous period, and any major upgrades completed within the last 15 years, including but not limited to boiler replacement, condenser replacement, turbine replacement, or changes to fuel type; (ii) Descriptions of completed, approved, or scheduled uprates and Nuclear Regulatory Commission relicensing status of each unit at nuclear facilities; (iii) For process units at your facility that use cooling water other than for power production or steam generation, ifyou intend to use reductions in flow or changes in operations to meet the requirements of 40 CFR 125.94(c),
descriptions of individual production processes and product lines, operating status including age of each line, seasonal operation, including any extended GK5356/GA190027_Draft OpStatus VCSNS.docx 01.15.2019
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consultants or unusual outages that significantly affect current data for flow, impingement, entrainment, or other factors, any major upgrades completed within the last 15 years, and plans or schedules for decommissioning or replacement ofprocess units or production processes and product lines; (iv) For all manufacturing facilities, descriptions of current and future production schedules; and (v) Descriptions ofplans or schedules for any nrw units planned within the next 5 years.
- 2. OPERATIONAL STATUS VCSNS Unit 1 is a single-unit, 972.7-megawatt (MW)', nuclear-fueled, base-load facility located at the southern end of Monticello Reservoir, a freshwater impoundment (Figure 1). It has a design intake capacity of approximately 768 million gallons per day (MGD) .
. ,Although the cooling water. system operates* *in a "once-through" rn.ode, Monticello.
Reservoir was constructed for the purpose of serving as part of the c.ooling water system (U.S. Nu~lear Regulatory Commission [NRC], 20.0A). Thus, the' use ~f Monticello Reservoir. as a cooling impoundment for VCSNS Unit 1 has been determined by SCDHEC and EPA to be a "closed-cycle recirculating system" under 40 CFR, Part 125, Subpart J, §125.92(c)(2).
The cooling water systems (CWS) began preliminary use in August 1978; pre-operation startup testing began in April 1980. VCSNS Unit l began commercial operation on January 1, 1984. It has one Westinghouse 3-loop Pressurized Water Reactor that has received approval of a 20-year license extension to operate Unit 1 from 2022 through 2042.
VCSNS Unit 1 uses cooling water for power production and not in any manufacturing capacity. There are currently no plans for updates at VCSNS Unit 1. There have been no major upgrades to CWS in the last 15 years and no new units are planned for the next 5 years. There have been no extended or unusual outages during that time with impact to the VCSNS Unit 1 CWS.
The average annual capacity utilization rate from 2013 through 2018 is shown in the table below. The five-year average annual capacity utilization rate is 86.7%.
GK5356/GA190027_Draft Op Status VCSNS.docx 2 01.15.2019
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consultants 2013 2014 81.17%
2015 83.51%
2016 101.34%
2017 81.13%
2018 86.45%
Average 89.7%
- 3.
SUMMARY
AND CONCLUSION VCSNS Unit 1 is a single-unit, 972.7-MW, nuclear-fueled, base-load power generating facility* located at the so.ut~em enci of Monticello Reservoir in*"Fairfield County, So~th Carolina. Monticello Reservoir is a 6,500-~cre freshwater impoundment constructed for the purpose of serving as part.of the VCSNS cooling water system. The single, shoreline ;
CWIS is part of a: cooling water system that has been determined by SCDHEG and EPA .
to be a closed-cycle recirculating system under the definition at 40 CFR §125.92(c)(2).
VCSNS Unit 1 is designed to operate in one cooling mode: closed-cycle. It began commercial operation in 1984 and most recently received a license from the NRC to operate from 2022 through 2042. The five-year average annual capacity utilization rate is 86.7%.
GK5356/GA190027_Draft OpStatus VCSNS.docx 3 01.15.2019
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- 4. REFERENCES CITED U.S. Nuclear Regulatory Commission (NRC). 2004. Generic Environmental Impact Statement for License Renewal of Nuclear Plants. Supplement 15 Regarding Virgil C. Summer Nuclear Station. Final Report. U.S. Nuclear Regulatory Commission, Washington, DC.
GK5356/GA! 90027_Draft OpStatus VCSNS.docx 4 Ol.15.2019
FIGURE
/ Monticello Suti-impoundm~nt
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LEGEND N
N 10-km (6-mi) radius ofV.C. Summer Interstates O
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3 Kilometers 3Mles l N Major Roads Minor Roads I
County Boundaries Source: NRC, 2004
- Lakes and Rivers
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