ML20080B738
| ML20080B738 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 09/14/1994 |
| From: | Shell R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9412060213 | |
| Download: ML20080B738 (11) | |
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Temessee Vaney Aunu4 PN OHece Bow 2000. Soddy-Da sy, Tennessee 37379 November 30, 1994 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:
In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority ) 50-328 SEQUOYAH NUCLEAR PLANT (SQN) - ANNUAL ENVIRONMENTAL OPERATING REPORT The enclosure contains the Annual Environmental Operating Report for SQN for the period from September 15, 1993, through September 14, 1994. This report is submitted in accordance with Appendix B, Technical Specification 5.4.1.
Please direct questions concerning this issue to W. C. Ludwig at (615)~843-7460.
Sincerely, Y.
R.11. Shell Manager SQN Site Licensing Enclosure cc: See page 2 9412060213 940914 /
U.S. Nuclear Regulatory Commission Page 2 November 30, 1994 cc (Enclosure):
Mr. D. E. LaBarge, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 NRC Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 Regional Administrator U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323-2711
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ENCLOSURE i
l SEQUOYAH NUCLEAR PLANT ANNUAL ENVIRONMENTAL OPERATING REPORT (S58 941027 800)
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Tennessee Valley Authority .
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Annual Non-Radiological Environmental Operating Re. port September 15,1993 - September 14,1994 l
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- ANNUAL ENVIRONMENTAL OPERATING REPORT SEPTEM HER 15,1993 TIIROUGli SEPTEMBER 14,1994 TAHLE OF CONTENTS l
I. INTRO D UCTION.... . .. .. . . . . . . .. . . ..page 3 l
II. REPORTS PREVIOUSLY SUHMITTED AS SPECIFIED IN Tile SQN NATIONAL POLLUTANT DISCIIARGE ELIMINATION SYSTEM (NPDES) PERMIT., . . . . . , , . . . . . . . . . . . . . . . . . . . . . . . ....page 3 111. ENVIRONM ENTAL TECIINICAL SPECIFICATION NONCOM PLI ANCES . . .. ... . . . . . . .. . . . . . . . . . . . . . . . . . . ...page 3 IV. CIIANGES MADE TO APPLICABLE STATE AND FEDERAL PERMIT )
CERTIFICATIONS... . .. . .. . . . ... . .. . . . . . . . . ...page 4 l V. CIIANGES IN FACILITY DESIGN OR OPERATION... . . ... . . . .. . . ..page 4 VI. NON-RO UTIN E RE PORTS.... . ..... ..... . . . . .. . . . . .. . . . . ..page 5 VII. CIIANGES IN APPROVED ENVIRONMENTALTECIINICAL SPECIFICATION., . . .. .. . . . . . . . . ..page 5 ATI'ACilMENT 1 - STUDY OF SEQUOYAII NUCLEAR PLANT (SQN)
DESIGN AND OPERATIONAL CIIANGES HETWEEN SEPTEMBER 15, 1993 AND SEPTEMBER 14,1994 FOR EFFECTS ON Tile ENVIRONM ENT. . . . . . , . .. . . . . . . ..page 6 2
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ANNUAL ENVIRONMENTAL OPERATING REPORT SEPTEM BER 15,1993 TilROUGli SEFFEMBER 14,1994 1
l I. INTRODUCTION The Sequoyah Nuclear Plant Annual Environmental Operating Report for the period of September 15,1993 through September 14,1994, is prepared in accordance with Ensironmental Technical Specification (Non-Radiological)(ETS), Appendix B,5.4.1. ETS Section 4.2.
requires no special studies at this time. This report includes a summary of: e Reports previously submitted as specified in the SQN National Pollutant Discharge Elimination System (NPDES) Permit No. TN0026450.
All ETS noncompliances and the corrective actions taken to remedy them.
Changes made to applicable State and Federal permits and certifications.
Changes in station design that could involve a significant environmentalimpact or change the findings of the Final Environmental Statement (FES).
All non-routine reports submitted per ETS Section 4.1. .
Changes in approved ETS.
i II. REPORTS PREVIOUSLY SUBMITTED AS SPECIFIED IN Tile SQN ;
NATIONAL POLLUTANT DISCIIARGE ELIMINATION SYSTEM (NPDES)
PERM FF The following reports were previously submitted as specified in the SQN National Pollutant Discharge Elimination System (NPDES) Permit No. TN0026450:
Aquatic Toxicity Monitoring Study, submitted November 28,1993 Aquatic Toxicity Monitoring Study, submitted June 28,1994 Boric Acid Study, submitted June 28,1994.
Ill. ENVIRONM ENTAL TECIINICAL SPECIFICATION NONCOM PLIANCES There were no noncompliances with Environmental Technical Specifications during this period.
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. t ANNUAL ENVIRONMENTAL OPERATING REPORT i
SEPTEMBER 15,1993 TilROUGII SEPTEMBER 14,1994 IV. CIIANGES MADE TO APPL.lCABLE STATE AND FEDERAL PERMIT CERTIFICATIONS On October 31,1993, the State of Tennessee issued a minor modification to the NPDES permit as requested by Sequoyah. The modification was necessary to ensure that biocide utilized to ,
inhibit microbiological corrosion and to control Asiatic clams in all raw water systems was included in the calculation for total residual chlorine present at the Sequoyah discharge to the ,
Tennessee River. There were no changes in permit limits or monitoring frequency.
On January 26,1994, the application for Interim Status as a Treatment Storage and Disposal Facility (TSDF) for Mixed Waste, submitted to the State of Tennessee Division of Solid Wrr- in 1989, was updated to include additional mixed waste stored on-site. All mixed waste store j aa-site was shipped to an EPA approved TSDF on February 28,1994. The State ofTennessee Division of Corrective Action is reviewing Sequoyah's request for removal from Interim Status at -
this time.
i V. CIIANGES IN FACILITY DESIGN OR OPERATION In accordance with Technical Specification (TS) 5.3.c., facility design and operational changes were reviewed for potential effect on the environment. A study of facility design and operational changes proposed from September 15,1993, through September 14,1994 was ,
performed. Projects considered as having potential impact on the environment included: those :
that could have caused waste stream generation / alteration; or that required the acquisition / modification of permits; or involved the use of hazardous material; or required physical construction. The study identified and documented a basis that the design and operational changes did not involve an unreviewed environmental question. A copy of this study is attached (Attachment 1).
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ANNUAL ENVIRONMENTAL OPERATING REPORT SEPTEMBER 15,1993 TIIROUGli SElrFEM BER 14,1994 VI. NONROUTINE REPORTS Two nonroutine reports were submitted in accordance with TS 4.1. Both reports involved minor spills that did not reach waters of the United States. The incidents are summarized below:
9 On October 23,1993 as much as 704 gallons of sodium hypochlorite spilled due to ,
a pipe break at the sodium hypochlorite feed skid to the IB ERCW header. The exact amount spilled could not be determined due to inoperable levelindication at the storage tank. All of the material spilled remained within Facility botmdaries.
Immediate corrective action included isolating the sodium hypochlorite feed to the broken piping upon discovery. All material spilled onto the soil. Approximately 500 gallons flowed into a concrete catch basin. Very dry conditions caused the remaining liquid to be absorbed into the soil.
On November 18.1993 approximately 150 gallons of sodium hypochlorite was spilled due to an ERCW feed pipe break inside the concrete catch basin. All of the material remained within Facility boundaries. The spilled material overflowed from the catch basin and onto the soil.
Vll. CilANGES IN APPROVED ENVIRONMENTALTECIINICALSPECIFICATION There were no changes in approved Environmental Technical Specifications during this period.
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ANNUAL ENVIRONMENTAL OPERATING REPORT SEPTEM HER 15,1993 TilROUGli SEPTEM HER 14,1994 ATTACIIMENT I STUDY OF SEQUOYAll NUCLEAR PLANT (SQN)
DESIGN AND OPERATIONAL CilANGES HETWEEN SEPTEMBER 15,1993 AND SEPTEMHER 14,1994 FOR EFFECTS ON Tile ENVIRONMENT Facility design and operational changes made or proposed during this report period were reviewed for potential to affect the environment as described below. None were found to result in an unreviewed environmental question. The following criteria were used to identify those projects with a potential for environmental effects:
(1) Waste stream generation / alteration (Air, llazardous Waste, Solid Waste, PCB's, Asbestos, Wastewater)
(2) Permit Acquisition / Modification
[ NPDES, Air, Inent Landfill, Other (404, etc.)]
(3) llazardous Materials (4) Physical Constmetion Involved (Erosion / Sedimentation Effects, Transportation Effects, Noise Effects, Groundwater Effects, Surface Water Effects, Floodplain Effects, Wetland Effects, Prime Farmland Effects Unique Natural Features Effects, Aquatic Ecology Effects, Terrestrial Ecology Effects, Protected Species EfTects, Sensitive Habitat EfTects, Visual Effects, Historical, Cultural and Archeological Effects, Changes in Site Land Use, and Controversy)
The following projects potentially met the above criteria and were reviewed for impact to the environment:
- a. Workplans Removal of Sediments and Particulates in Diesel Fuel Outside Storage Tanks.
Sewage llolding Tank Removal. ;
SQN Fuel Oil Contamination and Corrective Action Plan.
3 Phase I ower Feed to SQN Rifle Range.
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ANNUAL ENVIRONMENTAL OPERATING REPORT ;
SEPTEMBER 15,1993 THROUGH SEPTEMBER 14,1994 )
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- b. Special Tests
. There were no special tests conducted during this period that met environmental impact criteria.
- c. Temporary Alteratinns
. Use of High Pressure Fire Protection Water for IM/POB Air Conditioning Unit l cooling.
- d. Desien and Operational Changes ,
. T- Hot Reduction i
. Replacement of Turbine Control Valves
. Station Battery Banks Replacement
. PASF Fire Protection
. Modification to Control Flooding of the Main Steam Valve Vault
. Fuel Oil Control and Inventory
. Level Transmitter for the Reactor Coolant Drain Tank
. Main Generator Seal Oil Pressure Switches
. Replace Wom and Obsolete Recorders
- Pressurizer Snubbers
. Main Steam Dump Controller
. Warehouse Construction
. Refueling Waste Storage Tank Transmitters
. RP Voltage Regulator
. ID Relay for Westinghouse ARLA/ARIS
. Emergency Diesel Generator Load Sharing Speed Controls
. Replace Reactor Coolant Pump Motor Under-frequency Relays as Required ,
. Control Rod Drive Motor Duct Replacement
. Nitrogen System Replacement ,
. Steam Valve Vault Room Sensitive equipment Freeze Protection
. Digital Radiation Monitor Software Hang-up Problem
. Plant Service Building Elevation 706 and 726 Fire Doors
. Solar Building and Maintenance Area Electrical Power Supply
. Steam Dump "D" Valve Replacement 7
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ANNUAL ENVIRONMENTAL OPERATING REPORT SEPW%11tER 15,1993 TIIROUGII SEPTEM BER 14,1994
. Junction Ilox Replacement
. Warning Lights on Manipulator Crane Ice Condenser Floor Position Monitoring
. Opening Logic for LCV-6-105 A & Il
. Sight Glass Replacement
. NIS Power Range Channel Modificaticas
. Ileaters, Drains and Vents Level Control Valves Old IIold Orders on Abandoned Equipment
. Main Feed Pump Turbine A & B Inlet Pressurizer- Obsolete Transmitter System 12 - Disconnected IIanger
. Gland Steam Condenser Tube Replacement Control Rod Drive Motor Sleeve Guide
. #7 l! eater Drain Tank, Flow Indicator in Main Control Room Turbine Building Sump Pump Suction Strainers Modify Fire Detection and Protection System Inside A & B 11VAC Equipment Rooms Main Generator Voltage Regulator Replacement All Facility design and operational changes made during this report period with a potential impact on the environment were fotmd to be within the scope of existing permits and in compliance with Environmental Regulations.
Monthly discharge monitoring reports submitted by the SQN NPDES permit were reviewed.
Permit excursions were attributed to be due to natural causes and determined to be within the puniew of the NPDES permit and associated environmental evaluations.
In summary, there have been no facility design or operational changes from September 15,1993 to September 14,1994, which have resulted in an unreviewed environmental question.
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