ML20198N721

Annual Non-Radiological Environ Operating Rept for Period from 960915-1001

ML20198N721
Person / Time
Site:	Sequoyah
Issue date:	10/01/1997
From:	Salas P TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9711060052
Download: ML20198N721 (11)

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Tennessee Valley Authortty Post Offce Box 2000, Scody-Daisy, Terres!44 37379 2000 October 31. 1997 U.S. Nuclear Regulatory Commission ATTN Document Control Desk Washington, D.C. 20555 Gentlemen In the Matter of ) Doc',3t Nos . 50-327 Tennessee Valley Authority ) 50-328 SEQUOYAH NUCLEAR PLANT (SON) - ANNUAL ENVIRONMENTAL OPERATING REPORT The enclosure contains the Annual Environmental Operating Report for SON for the period from September 15, 1996 through October 1, 1997 This report is submitted in accordance with Appendix B, Technical Specification 5.4.1.

No commitments are contained in this submittal. Please direct questions concerning this issue to me at (423) 843-7170 or Jim Smith at (423) 843-6672.

M .erely,

-. 7' 1

edro Salas Site Licensing and Industry Affairs Manager j\

Enclosure n 'cc.\

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9711060952 971031

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. U.S'. Nuclear Regulatory Commission i Page 2 0ctobkr 31, 1997 cc (Enclosure):

Mr. R. W. Hernan, Project Manager Nuclear Regulatory Commiasion One White Flint, North .

11555 Rockville Pike  !

Rockville, Maryland 20052-2739  ;

NRC Resident Inspector Sequoyah Nuclear Plant '

2600 Igou Ferry Road

-Soddy-Daisy, Tennessee 37379-3624 Regional Administrator U.S. Nuclear Regulatory Commission Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303-3415 i

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i ANNUAL NON-RADIOLOGICAL

! ENVIRONMENTAL OPERATING

REPORT i

5 TENNESSEE VALLEY AUTIIORITY

, SEQUOYAII NUCLEAR PLANT

SEPTEMBER 15,1996 TIIROUGIl OCTOBER 1,1997

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. ANNUAL NON. RADIOLOGICAL ENVIRONh1 ENTAL OPERATING REPORT l

SEPTEh111ER 15,1996 TilROUGli OCTOllER 1,1997 l

l TAllLE OF CONTENTS

1. I N T R O D U CTI O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pa g e 3 II. REPORTS PREVIOUSLV SUllhtlTTED AS SPECIFIED IN Tile SQN NATIONAL POLLUTANT DISCIIARGE ELlalINATION SYSTEh!

( N P D E S ) P E R S 1 1 T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P a 111. ENVIRONS 10NTA L TECilNICAL SPECIFICATION N O N C O 51 P L I A N C E S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pa ge 3 IV. CllANGES h1ADE TO APPLICAllLE STATE AND FEDERAL PERhllT C E RTI FI CA Tl O N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . Pa ge 4 V. CII ANG ES IN FACILITV DESIGN OR OPERATION.......... ..... . ..................Page 4 VI. NON.RO UTlN E RE PO RTS.. ... . .. .. ......... .... .. .... ..............................Page5 Vi1. S P E CI A L ST U D I E S . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . .. . . .. . . . . . .... . .. . ... . . . .Page 5 VIII. CIIANGES IN APPROVED ENVIRONh1 ENTAL TECIINICAL S P E C l F I CA T l O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P a g e 5 ATTACith1ENT I - STUDY OF SEQUOVAll NUCLEAR PLANT (SQN)

DESIGN AND OPERATIONAL CilANGES DETWEEN SEPTEh1HER 15,1996 AND OCTOllER 1,1997 FOR EFFECTS ON Tile EN V I IIO N S 1 E N T.. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . ...............................,..............Page6 2

. . ANNUAL NON RADIOLOGICAL ENVIRONh1 ENTAL OPERATING REPORT SEPTEhlllER 15,1996 TIIROUGli OCTOllER 1,1997

1. INTRODUCTION The Sequoyah Nuclear Plant Annual Non Radiological Environmental Operating Report for the period of September 15,1996 through October 1,1997, is prepared in accordance with Environmental Technical Specification (Non Radic'ogical)(ETS), Appendix B,5.4.1. ETS Section 4.2 requires no special studies at this time. This report includes a summary of:

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+ Reports previously submitted as speciued in the SQN National Pollutant Discharge Elimination System (NPDES) Permit No. TN0026450.

7 + All ETS noncompliances and the corrective actions taken to remedy them.

+ Changes made to applicable State and Federal permits and certi0 cations.

• Changes in staticn design that could involve a significant environmentalimpact or change the fmdings of the Final Environmental Statement (FES).

• All non routine reports submitted per ETS Section 4.1.

+ Special studies.

+ Changes in approved ETS.

II. REPORTS PREVIOUSLY SUllhllTTED AS SPECIFIED IN Tile SQN NATIONAL POLLUTANT DISCilARGE ELih11 NATION SYSTEh! (NPDES)

PERhllT The following reports were submitted as specined in the SQN NPDES Permit No. TN0026450:

+ Aquatic Toxicity hionitoring Study, included in the quarterly Discharge hionitoring Report submitted on January 14,1997.

+ Aquatic Toxicity hionitoring Study, included in the quarterly Discharge hionitoring Report submitted on April 11,1997.

111. ENVIRONh1 ENTAL TECilNICAL SPECIFICATION NONCOhlPLIANCES

+ February 21,1997 - Algal bloom caused the total suspended solids in the un'ined metal cleaning waste pond to exceed the NPDES Permit limit. This was the result of a natural occurrence of algal bloom.

+ hiarch 6,1997 - A low pli condensate demineralizer release caused the pli in the Turbine Building Sump to exceed the NPDES Permit limit. The NPDES Permit requires Turbine 3

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. A,NNUAL NON RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT SEPTEMilER 15,1996 TilROUGli OCTOllER 1.1997 Duilding Sump sampling when the flow from the Sump is entering the Yard Drainage Pond.

Although the Turbine Building Sump was not aligned to the Yard Drainage Pond, sampling was required because of a leak in the line Dom the Turbine Building Sump to the Low Voh.me Waste Treatment Pond resulting in a discharge to the Yard Drainage System. This 1:ne v as repaired removing the requirement for Turbine Building Sump pli measurement.

+ May 20,1997 - A grab sample from the Unlined Metal Cleaning Waste Pond was found to i exceed the NPDES Permit limit for iron. This is possibly the result of an analysis or sampling error. Duplicate samples are now retained at Sequoyah until samples are analyzed and results reviewed.

IV. CilANGES MADE TO APPLICABLE STATE AND FEDERAL PERMIT CERTIFICATIONS The fbliowing modifications were made to air permits:

+ April 22,1997 - The permit for the Emergency Diesel Generators, Dack Up Security Diesel and Auxiliary Dollers was modified to increase the number of operating hours allowed per Emergency Diesel Generator.

+ July 10,1997 - A second modification of the permit for the Emergency Diesel Generators, Back Up Security Diesel and Auxiliary Dollers added the liigh Pressure Fire Protection diesel generator and the Information Services diesel generator.

Concurrence was received from the Tennessee Department of Environment and Conservation Division of Water Pollution Control to:

+ Allow the use of new treatment chemicals to prevent biological fouling of the ERCW system;

+ Install a reverse osmosis water purification system for the Makeup Water Treatment system;

+ Change the liigh Pressure Fire Protection from raw to potable water;

+ Install a structure to divert stormwater into the Condenser Cooling Water Channel. This should decrease the number of NPDES permit noncompliances related to the algal bloom in the unlined metal cleaning waste pond;

• Discharge ice melt water directly to the radwaste discharge with pH of 6 to 9 units.

V. CllANGES IN FACILITY DESIGN OR OPERATION in accordance with Technical Specification (TS) 5.3.c., bcility design and operational changes were reviewed for potential effect on the environment. A study of facility design and operational changes proposed from September 15,1996, through October 1,1997 was performed. Projects considered as having potentialimpact on the environment included: those that could have caused 4

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. A,NNUAL NON RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT SEP TEMilER 15,1996 TilROUGli OCTOllER 1,1997 wastt stream generation / alteration; or that required the acquisition / modification of permits; or irivolved the use of hazardous material; or required physical construction. The study documented that design and operational changes did not involve an unreviewed environmental question. A copy of the study is attached (Attachment 1).

VI. NON ROUTINE REPORTS No non routine reports were issued during this period.

Vll. SPECIAL STUDIES A 316a Supplemental Study was prepared and submitted for review.

Vill. CilANGES IN APPROVED ENVIRONMENTAL TECIINICAL SPECIFICATION There were no changes in approved environmental technical specifications during this period.

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. ANNUAL NON. RADIOLOGICAL ENVIRONh1 ENTAL OPERATING REPORT SEPTEh1HER 15,1996 TilROUGli OCTOllER 1,1997 i ATTACilh1ENT I STUDY OF SEQUOYAll NUCLEAR PLANT (SQN) DESIGN AND OPERATIONAL CIIANGES IIETWEEN SEPTEh111ER 15,1996 AND OCTOllER 1,1997 FOR EFFECTS ON TIIE ENVIRONh1ENT 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:

A. Waste stream generation / alteration (Air, liazardous Waste, Solid Waste, PCBs, Asbestos, Wastewater)

B. Permit Acquisition /hiodification

[ NPDES, Air, inen Landfill, Other (316a,404, etc.)]

C. 11azardous hiaterials D. Physical Construction involved (Erosion / Sedimentation Effects, Transportation Effects, Noise Effects, Groundwater Effects, Surface Water Effects, Floodplain Effects, Wetlaad Effects, Prime Farmland Effects, Unique Natural Features Effects, Aquatic Ecology EfTects, Terrestrial Ecology Etreets, Protected Species Effects, Sensitive liabitat Effects, Visual Effects,11istorical, Cultural and Archeological EITects, Changes in Site Land Use, and Controversy)

1. Special Tests There were no special tr. *.s conducted during this period that met environmentalimpact criteria.

2. Temporary Alterations Auxiliary Boiler fuel supply was changed to a temporary tanker.

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. ANNUAL NON. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT SEPTEMBER 15,1996 TilROUGli OCTOBER 1,1997

3. Deslan and Operational Channes All Facility design and operational changes made during this report period with a potential impact on the environment were found to be within the scope of existing permits and in compliance with Environmental Regulations. Those changes reviewed are as follows:

1. Concrete Pour at Area Adjacent to Landfill

2. hiodify Spent Fuel Pit Cooling System Orifice

3. Spent Fuel Storage Facility

4. Speeding Up the Fuel Transfer System Cart Cable Drive Unit 1

5. Speeding Up the Fuel Transfer System Cart Cable Drive Unit 2

6. Temporary Auxiliary Boiler Tank Installation

7. Addition of oil Flow Pressure Switches to Unit I hfTs

8. Replace Existing 500-kV Yard lius Potential Transformer

9. ERCW Chlorination Skid hiodification

10. Turnover of WTP to Ecolochem i1. Steam Dump Drain Valves

12. Turbine Generator Long Range hiaintenance Unit 1

- 13. Turbine Generator Long Range hiaintenance Unit 2

14. Status Indication for Aux FW Initiation and Runback Circuit Armed Unit i

15. Status Indication for Aux FW Initiation and Runback Circuit Armed Unit 2

16. }{old Up Tank Water Processing

17. Inspection Program for hietal Containment

18. Demolition of Warehouses 3 & 4

19. Diving to Clean Up A, B & C CCW Pits

20. ERCW Cooling Tower Demolition

21. Plant Sewage Reroute to llamilton County Collector Sewage System

22. Utilities for Transmission Shop at SQN

23. Temporary Auxiliary Boiler Fuel Tank, Pipe & iloses Installation

24. Unit i RCP Frame and Shall Vibration hionitoring System

25. Unit 2 RCP Frame and Shall Vibration hionitoring System

26. Unit 2 RCP 2 & 3 Platform hiodification to Support hiain Flange Volt Work U2C8

27. Unit i 2 & 3 RCP Platform hiodification to Support hiain Flange Volt Work U2C8

28. Unit 21 & 4 RCP Platform biodification to Support hiain Flange Volt Work U2C9

29. hiain Control Room Pressure Indicator 0-PDI 311-14 A & ISA

30. SQN 95974PER, Nitrogen System improvements, Unit 2

31. Target Rock Valve Clamp Assembly Replacement

-32. Unit 1 Reactor Stud Coating

33. Secondary Chemical Feed System Upgrade

34. Engineering Group Relocation

35. OPSI Renovation 7

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ANNUAL NON. RADIOLOGICAL ENVIRONhlENTAI OPERATING REPORT i SEPTEhlllER 15,1996 TitROUGli OCTOllER 1,1997

36. Steam Dump Drain Valves & hionitoring System

37. Extraction Steam Non Return Valve Upper Unit i Switch

38. Extraction Steam Non Return Valve Upper Unit 2 Switch 39.1,2 & 3 Piping Stress Analysis Problems Unit 1 40,1,2 & 3 Piping Stress Analysis Problems Unit 2

41. Repair 16 kV Dreaker and Install Surge Arrestors...

42. SQN Access RR - Gas Pipe Line Crossing by Chattanooga Gas Company

43. SQ950729PER Replace Condensate Booster Pump Pressure Switches i 44. SQ930539PER New Type Gauge for Unit I hiain Turbine Oil Tank Pressure Indication

) 45. Replace Obsolete S&K 111 and Lo Range Seal Flow Indicating Transmitters j 46. Revise System Firmware to Version 1.16 or Later on hiCR Deta Annunciator i 47. No. 3 IIDTP Seal Injection Water Low Delta P Alarm

48. Addition of T Drains to 18 hiotor Operated Valves

49. Replace Worn and Obsolete Recorders Unit I

50. Steam Generator Secondary Side Corrosion hionitor j $1. Glycol Circulation Pump Low Suction Pressure Switches

! 52. Replace Worn and Obsolete Recorders - Unit 2

53. Upgrade of Doric Acid Secondaiy injection Skid

54. Rail Stops for Ice Condenser Plenum Cranes

55. TCV-24 73 & -74 is Not hiaintaining a Temperature Setpoint

56. Boric Acid Batching Tank Platferm

57. ADGTS Loop Seal Vacuum Breaker

58. Install Air Intake Screens for Each RCP Unit 1

59. Install Air intake Screens for Each RCP Unit 2

60. Permanent Drains for Steam Generator Wet Lay Up Tell Tale Drains Unit i

61. Permanent Drains for Steam Generator Wet Lay Up Tell Tale Drains Unit 2

62. Obsolete Recorders Unit 1

63. Obsolete Recorders Unit 2

64. RCP #3 & #4 Platform hiodification to Support hiain Flange Bolt Work UIC8

65. SQ952154 PER/SQ951638PER Refurbish Arrowhart Compartments UIC8

66. SQ952154 PER/SQ951638PER Refurbish Arrowhart Compartments U2C8

67. Terry Turbine Steam Trap and Check Valve Unit 1

68. hiain Steam Trap Piping Vibration Unit 2

69. Essential Raw Cooling Water lleat Trace System

70. Feedwater and Refueling Water Storage Tank 1leat Tracing Unit 1

71. Terry Turbine Steam Trap and Check Valve Unit 2

72. Feedwater and Refueling Water Storage Tank lleat Tracing Unit 2

73. Refueling Water Storage Tank lleat Tracing Unit I

74. Refueling Water Storage Tank lieat Tracing Unit 2

75. Reroute Piping for 1-32-297 8

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. ANNUAL NON. RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT SEPTEMBER 15,1996 TilROUGil OCTOllER 1,1997 76, Mansell Level Monitoring Systern

! 77. Inmast Sipping Unit 2 I 78. Inmast Sipping Unit 1 l 79. UIC9 Ice Condenser Floor Replacement i i  !

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