L-2013-059, Emergency Response Data System Changes Due to Replacement of the Main Steam Line High-Range Noble Gas Effluent Monitor

Emergency Response Data System Changes Due to Replacement of the Main Steam Line High-Range Noble Gas Effluent Monitor

ML13064A278
Person / Time
Site:	Turkey Point
Issue date:	02/13/2013
From:	Kiley M Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2013-059
Download: ML13064A278 (5)

Text

0FPL.

February 13, 2013 L-2013-059 10 CFR 50, Appendix E US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC, 20555-00001 Re: Turkey Point Unit 4 Docket Nos. 50-251 Emergency Response Data System Changes Due to Replacement of the Main Steam Line High-Ranae Noble Gas Effluent Monitor This letter is being submitted pursuant to 10 CFR 50, Appendix E, VI, 3.a, "Maintaining the Emergency Response Data System," due to changes to the Turkey Point Unit 4 (TP4)

Emergency Response Data System (ERDS) Data Point Library Reference File.

Turkey Point Unit 4 has recently replaced the Main Steam Line High-Range Noble Gas Effluent Monitors. As a result of these design changes, the ERDS point IDs associated with the main steam line monitor has changed. Specifically, instead of a single ERDS point ID, there are now three individual ERDS point IDs associated with each of the Turkey Point Unit 4 main steam line monitors. As such, the following ERDS point ID is removed from the Turkey Point Data Point Library Reference File:

TP4 ERDS DATA POINT INFORMATION DCS Point ID Plant Specific Generic Condition Description Point Description Description R6426_A Main Steam lines Main Steam Lines RAD6426 Main Gamma Hi Rng Radioactivity Steam Line High Range Gamma In its place, the following three new point IDs are added to the Turkey Point Data Point Library Reference File:

TP4 ERDS DATA POINT INFORMATION DCS Point ID Plant Specific Generic Condition Description Point Description Description R6426ACV Main Steam Line Main Steam Line A RAD-4-6426A 4A NG Activity Radioactivity R6426BCV Main Steam Line Main Steam Line B RAD-4-6426B 4B NG Activity Radioactivity R6426CCV Main Steam Line Main Steam Line C RAD-4-6426C 4C NG Activity Radioactivity Florida Power & Light Company 9760 S.W. 3 4 41h Street Homestead, FL 33035 7kc~2~z

L-2013-059 Page 2 These changes were implemented on January 29, 2013. As such, pursuant to 10 CFR 50, Appendix E, VI, 3.a, which requires submittal of software changes to the ERDS Data Point Library within 30 days after the changes are completed, Florida Power and Light Company (FPL) is submitting herein in Attachment 1 details of the new ERDS point IDs for incorporation into the TP4 ERDS Data Point Library Reference File.

Should there be any questions, please contact Mr. Robert J. Tomonto, Licensing Manager, at 305-246-7327.

Very truly yours, Michael Kiley Vice President Turkey Point Nuclear Plant Attachment cc: Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant

L-2013-059 Attachment 1 Page 1 TP4 DATA POINT LIBRARY REFERENCE FILE Date: 1/29/2013 Reactor Unit: TP4 Data Feeder: N/A NRC ERDS Parameter: MAIN SL A Point ID: R6426AC V Plant Spec Point Desc: Main Steam Line 4A NG Activity Generic/Cond Desc: Main Steam Line A Radioactivity Analog/Digital: A Engr Units/Dig States: uCi/cc Engr Units Conversion: N/A Minimum Instr Range: 1.OE-1 Maximum Instr Range: 1.OE+4 Zero Point

Reference:

N/A Reference Point Notes: N/A PROC or SENS: P Number of Sensors: 2 How Processed: Analytical correlation Sensor Locations: Main Steam Line 4A Outside Containment Alarm/Trip Set Points: Determined by Plant Radiochemistry NI Detector Power Supply N/A Cut-off Power Level:

NI Detector Power Supply N/A Turn-On Power Level:

Instrument Failure Mode: As-Is Temperature Compensation N/A For DP Transmitters Level Reference Leg: N/A Unique System Desc: Detector consists of a pair of Geiger-Mueller tubes with overlapping ranges, placed adjacent to the 4A Main Steam Line, and shielded from background radiation. Detector response is correlated to MSL internal activity.

L-2013-059 Attachment 1 Page 2 TP4 DATA POINT LIBRARY REFERENCE FILE Date: 1/29/2013 Reactor Unit: TP4 Data Feeder: N/A NRC ERDS Parameter: MAIN SL B Point ID: R6426BCV Plant Spec Point Desc: Main Steam Line 4B NG Activity Generic/Cond Desc: Main Steam Line B Radioactivity Analog/Digital: A Engr Units/Dig States: uCi/cc Engr Units Conversion: N/A Minimum Instr Range: 1.OE- 1 Maximum Instr Range: 1.OE+4 Zero Point

Reference:

N/A Reference Point Notes: N/A PROC or SENS: P Number of Sensors: 2 How Processed: Analytical correlation Sensor Locations: Main Steam Line 4B Outside Containment Alarm/Trip Set Points: Determined by Plant Radiochemistry NI Detector Power Supply N/A Cut-off Power Level:

NI Detector Power Supply N/A Turn-On Power Level:

Instrument Failure Mode: As-Is Temperature Compensation N/A For DP Transmitters Level Reference Leg: N/A Unique System Desc: Detector consists of a pair of Geiger-Mueller tubes with overlapping ranges, placed adjacent to the 4B Main Steam Line, and shielded from background radiation.

Detector response is correlated to MSL I internal activity.

.4 L-2013-059 Attachment 1 Page 3 TP4 DATA POINT LIBRARY REFERENCE FILE Date: 1/29/2013 Reactor Unit: TP4 Data Feeder: N/A NRC ERDS Parameter: MAIN SL C Point ID: R6426CCV Plant Spec Point Desc: Main Steam Line 4C NG Activity Generic/Cond Desc: Main Steam Line C Radioactivity Analog/Digital: A Engr Units/Dig States: uCi/cc Engr Units Conversion: N/A Minimum Instr Range: 1.OE-1 Maximum Instr Range: 1.OE+4 Zero Point

Reference:

N/A Reference Point Notes: N/A PROC or SENS: P Number of Sensors: 2 How Processed: Analytical correlation Sensor Locations: Main Steam Line 4C Outside Containment Alarm/Trip Set Points: Determined by Plant Radiochemistry NI Detector Power Supply N/A Cut-off Power Level:

NI Detector Power Supply N/A Turn-On Power Level:

Instrument Failure Mode: As-Is Temperature Compensation N/A For DP Transmitters Level Reference Leg: N/A Unique System Desc: Detector consists of a pair of Geiger-Mueller tubes with overlapping ranges, placed adjacent to the 4C Main Steam Line, and shielded from background radiation.

Detector response is correlated to MSL internal activity.