ML091950053: Difference between revisions

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{{#Wiki_filter:July 20, 2009  
{{#Wiki_filter:July 20, 2009 Mr. Preston D. Swafford Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
 
Mr. Preston D. Swafford Chief Nuclear Officer and     Executive Vice President Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801  


==SUBJECT:==
==SUBJECT:==
WATTS BAR NUCLEAR PLANT, UNIT 1 - EMERGENCY DIESEL GENERATOR FUEL OIL - ALTERNATIVE SAMPLING PROCEDURE OF STORAGE TANKS (TAC NO. ME1330)  
WATTS BAR NUCLEAR PLANT, UNIT 1 - EMERGENCY DIESEL GENERATOR FUEL OIL - ALTERNATIVE SAMPLING PROCEDURE OF STORAGE TANKS (TAC NO. ME1330)


==Dear Mr. Swafford:==
==Dear Mr. Swafford:==


By letter dated May 19, 2009 (Agencywide Document and Management System Accession   No. ML091400199), as supplemented by letter dated June 16, 2009 (ML091670518),
By letter dated May 19, 2009 (Agencywide Document and Management System Accession No. ML091400199), as supplemented by letter dated June 16, 2009 (ML091670518),
Tennessee Valley Authority (TVA) submitted a licensing action request for Watts Bar Nuclear Plant (WBN), Unit 1. The licensing action request was to allow for an alternative sampling procedure for the emergency diesel generator (EDG) fuel oil storage tanks (FOST).
Tennessee Valley Authority (TVA) submitted a licensing action request for Watts Bar Nuclear Plant (WBN), Unit 1. The licensing action request was to allow for an alternative sampling procedure for the emergency diesel generator (EDG) fuel oil storage tanks (FOST).
Technical Specification (TS) 5.7.2.16, "Diesel Fuel Oil Testing Program," requires that sampling and testing of new and stored fuel be performed in accordance with applicable American Society for Testing Materials (ASTM) standards. TVA has performed a manual "all-levels" sample in accordance with Section 8 of ASTM D4057-1988, "Standard Practice for Manual Sampling of Petroleum and Petroleum Products."  However, Section 8.1 of ASTM D4057-1988 specified that alternate sampling methods may be used with agreement of the parties involved.
Technical Specification (TS) 5.7.2.16, Diesel Fuel Oil Testing Program, requires that sampling and testing of new and stored fuel be performed in accordance with applicable American Society for Testing Materials (ASTM) standards. TVA has performed a manual all-levels sample in accordance with Section 8 of ASTM D4057-1988, Standard Practice for Manual Sampling of Petroleum and Petroleum Products. However, Section 8.1 of ASTM D4057-1988 specified that alternate sampling methods may be used with agreement of the parties involved.
TVA determined that U.S. Nuclear Regulatory Commission (NRC) staff approval of alternative sampling methods was necessary to satisfy the criteria of ASTM D4057-1988; there is no change to the Technical Specifications (TSs) or its bases.
TVA determined that U.S. Nuclear Regulatory Commission (NRC) staff approval of alternative sampling methods was necessary to satisfy the criteria of ASTM D4057-1988; there is no change to the Technical Specifications (TSs) or its bases.
The "all-levels" sample process draws a sample representative of the entire tank by opening an empty specialized container near the bottom of the tank and drawing the container upward to the top of the tank as it fills. Instead of this process, TVA proposed to take samples from the fuel oil transfer pump discharge lines of each storage tank. The transfer pumps take suction near the bottom of their respective storage tanks through a 5-inch diameter line. There is a 1-inch diameter line and valve off each discharge line that will be used as the sample point. To obtain a fuel oil sample, TVA proposed that the fuel oil transfer pump for the tank to be sampled will be placed in the recirculation mode for a period of time necessary to ensure adequate mixing based on the volume of diesel fuel in the tank. After the tank has been recirculated for the appropriate time, TVA proposed that the sample line will be flushed and a sample obtained. The sample line and transfer pump will then be secured and the fuel oil sample will be analyzed in accordance with existing TS requirements.    
The all-levels sample process draws a sample representative of the entire tank by opening an empty specialized container near the bottom of the tank and drawing the container upward to the top of the tank as it fills. Instead of this process, TVA proposed to take samples from the fuel oil transfer pump discharge lines of each storage tank. The transfer pumps take suction near the bottom of their respective storage tanks through a 5-inch diameter line. There is a 1-inch diameter line and valve off each discharge line that will be used as the sample point. To obtain a fuel oil sample, TVA proposed that the fuel oil transfer pump for the tank to be sampled will be placed in the recirculation mode for a period of time necessary to ensure adequate mixing based on the volume of diesel fuel in the tank. After the tank has been recirculated for the appropriate time, TVA proposed that the sample line will be flushed and a sample obtained.
The sample line and transfer pump will then be secured and the fuel oil sample will be analyzed in accordance with existing TS requirements.


P. Swafford The NRC staff reviewed the proposed sampling process and the comparison of test results of the sampling of Main Fuel Oil Storage Tank Number 1 taken from the top of the tank using the method specified in ASTM D40457-1988 and sampling taken using the proposed method. Based on a comparison of the methods and test results, the NRC staff finds that the proposed sampling method provides an equally representative sample of useable tank contents.
P. Swafford                                 The NRC staff reviewed the proposed sampling process and the comparison of test results of the sampling of Main Fuel Oil Storage Tank Number 1 taken from the top of the tank using the method specified in ASTM D40457-1988 and sampling taken using the proposed method.
Based on a comparison of the methods and test results, the NRC staff finds that the proposed sampling method provides an equally representative sample of useable tank contents.
Based on the NRC staff review of the TVA request, the NRC staff finds the alternative sampling technique for WBN Unit 1 EDG FOST acceptable. Pursuant to ASTM D4057-1988, Section 8.1, TVA is authorized to obtain samples by the described process in lieu of specific methods described in applicable ASTM standards.
Based on the NRC staff review of the TVA request, the NRC staff finds the alternative sampling technique for WBN Unit 1 EDG FOST acceptable. Pursuant to ASTM D4057-1988, Section 8.1, TVA is authorized to obtain samples by the described process in lieu of specific methods described in applicable ASTM standards.
Sincerely, /RA/
Sincerely,
L. Raghavan, Chief Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation  
                                            /RA/
 
L. Raghavan, Chief Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-390 cc w/encl: Distribution via Listserv
Docket No. 50-390 cc w/encl: Distribution via Listserv  


ML091950053   OFFICE DORL/LPWB/PM DORL/LPWB/LA DSS/SBPB/BC DORL/LPWB/BC NAME JLamb BClayton GCasto LRaghavan DATE 07/14/09   07/14/09   07/16/09 07 / 20 /09}}
ML091950053 OFFICE       DORL/LPWB/PM         DORL/LPWB/LA       DSS/SBPB/BC   DORL/LPWB/BC NAME         JLamb                 BClayton           GCasto         LRaghavan DATE         07/14/09             07/14/09           07/16/09     07 / 20 /09}}

Latest revision as of 05:13, 14 November 2019

Emergency Diesel Generator Fuel Oil - Sampling of Storage Tanks (Tac ME1330)
ML091950053
Person / Time
Site: Watts Bar Tennessee Valley Authority icon.png
Issue date: 07/20/2009
From: Raghavan L
Watts Bar Special Projects Branch
To: Swafford P
Tennessee Valley Authority
Lamb John G./NRR/DORL, 415-3100
References
TAC ME1330
Download: ML091950053 (3)
v • d • e


Text

July 20, 2009 Mr. Preston D. Swafford Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801

SUBJECT:

WATTS BAR NUCLEAR PLANT, UNIT 1 - EMERGENCY DIESEL GENERATOR FUEL OIL - ALTERNATIVE SAMPLING PROCEDURE OF STORAGE TANKS (TAC NO. ME1330)

Dear Mr. Swafford:

By letter dated May 19, 2009 (Agencywide Document and Management System Accession No. ML091400199), as supplemented by letter dated June 16, 2009 (ML091670518),

Tennessee Valley Authority (TVA) submitted a licensing action request for Watts Bar Nuclear Plant (WBN), Unit 1. The licensing action request was to allow for an alternative sampling procedure for the emergency diesel generator (EDG) fuel oil storage tanks (FOST).

Technical Specification (TS) 5.7.2.16, Diesel Fuel Oil Testing Program, requires that sampling and testing of new and stored fuel be performed in accordance with applicable American Society for Testing Materials (ASTM) standards. TVA has performed a manual all-levels sample in accordance with Section 8 of ASTM D4057-1988, Standard Practice for Manual Sampling of Petroleum and Petroleum Products. However, Section 8.1 of ASTM D4057-1988 specified that alternate sampling methods may be used with agreement of the parties involved.

TVA determined that U.S. Nuclear Regulatory Commission (NRC) staff approval of alternative sampling methods was necessary to satisfy the criteria of ASTM D4057-1988; there is no change to the Technical Specifications (TSs) or its bases.

The all-levels sample process draws a sample representative of the entire tank by opening an empty specialized container near the bottom of the tank and drawing the container upward to the top of the tank as it fills. Instead of this process, TVA proposed to take samples from the fuel oil transfer pump discharge lines of each storage tank. The transfer pumps take suction near the bottom of their respective storage tanks through a 5-inch diameter line. There is a 1-inch diameter line and valve off each discharge line that will be used as the sample point. To obtain a fuel oil sample, TVA proposed that the fuel oil transfer pump for the tank to be sampled will be placed in the recirculation mode for a period of time necessary to ensure adequate mixing based on the volume of diesel fuel in the tank. After the tank has been recirculated for the appropriate time, TVA proposed that the sample line will be flushed and a sample obtained.

The sample line and transfer pump will then be secured and the fuel oil sample will be analyzed in accordance with existing TS requirements.

P. Swafford The NRC staff reviewed the proposed sampling process and the comparison of test results of the sampling of Main Fuel Oil Storage Tank Number 1 taken from the top of the tank using the method specified in ASTM D40457-1988 and sampling taken using the proposed method.

Based on a comparison of the methods and test results, the NRC staff finds that the proposed sampling method provides an equally representative sample of useable tank contents.

Based on the NRC staff review of the TVA request, the NRC staff finds the alternative sampling technique for WBN Unit 1 EDG FOST acceptable. Pursuant to ASTM D4057-1988, Section 8.1, TVA is authorized to obtain samples by the described process in lieu of specific methods described in applicable ASTM standards.

Sincerely,

/RA/

L. Raghavan, Chief Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-390 cc w/encl: Distribution via Listserv

ML091950053 OFFICE DORL/LPWB/PM DORL/LPWB/LA DSS/SBPB/BC DORL/LPWB/BC NAME JLamb BClayton GCasto LRaghavan DATE 07/14/09 07/14/09 07/16/09 07 / 20 /09

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