L-2011-036, Turkey Point, Units 3 & 4 - Response to NRC Request for Additional Information (RAI) Regarding NRC General Letter 2008-01 Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems

Turkey Point, Units 3 & 4 - Response to NRC Request for Additional Information (RAI) Regarding NRC General Letter 2008-01 Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems

ML110480050
Person / Time
Site:	Turkey Point
Issue date:	02/07/2011
From:	Kiley M Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GL-08-001, L-2011-036
Download: ML110480050 (41)

Text

0FEB 7 2011 LL-201 1-036 PL. 10 CFR 50.54(f)POWERING TODAY.EMPOWERING TOMORROW.*

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555-0001 Re: Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 Response to NRC Request for Additional Information (RAI) Regarding NRC Generic Letter 2008-01 "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems"

References:

1) Units 3 and 4 Nine-Month Response to NRC Generic Letter 2008-0 1, "Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems" 2) Turkey Point Unit 3: Nine-Month Supplemental (Post-Outage)

Response to NRC Generic Letter 2008-01 (3) Turkey Point Unit 4: Nine-Month Supplemental (Post-Outage)

Response to NRC Generic Letter 2008-01 (4) RAIs RE: Generic Letter 2008-01, Managing Gas Accumulation in Emergency Core Cooling, Decay Heat Removal, and Containment Spray Systems, e-mail from Jason Page (NRC), January 07, 2011 to Bob Tomonto (FPL)The above references (1 through 3) provided Florida Power & Light's (FPL's) responses to NRC Generic Letter 2008-01 for Turkey Point Units 3 and 4. Additional information was requested by the NRC staff by e-mail dated January 7, 2011 (Reference 4). The RAI consisted of seven (7)questions concerning the Turkey Point implementation of NRC Generic Letter 2008-01 requirements.

The attachments to this letter provide the FPL response to these questions.

This letter contains no new commitments and no revisions to existing commitments.

Should you have any questions regarding this submittal, please contact Mr. Robert J. Tomonto, Licensing Manager, at (305) 246-7327.Very truly yours, Michael Kiley Site Vice President Turkey Point Nuclear Plant an FPL Group company Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 L-2011-036 Page 2 of 2 Attachments cc: USNRC Regional Administrator, Region II USNRC Project Manager, Turkey Point Nuclear Plant USNRC Resident Inspector, Turkey Point Nuclear Plant Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 L-2011-036 Attachment 1 Page 1 of 7 Attachment I Response to 1/7/2011 RAIs Regarding Implementation of NRC Generic letter 2008-01 Turkey Point Units 3 and 4 L-2011-036 Docket Nos. 50-250 and 50-251 Attachment 1 Page 2 of 7 Response to Request for Additional Information The following information is provided by Florida Power & Light (FPL) in response to the Nuclear Regulatory Commission's (NRC) Request for Additional Information (RAI). This information was requested in an e-mail (Reference

4) from the NRC Project Manager (PM) to the Turkey Point Licensing Manager dated January 7, 2011. Each of the seven (7) questions is documented below with the applicable FPL response.Ouestion 1 Since the technical specifications do not address ECCS suction piping, how is gas intrusion managed in this suction piping?Response 1 The Technical Specification does not explicitly address suction piping of the ECCS systems, however, the operability of the associated pumps or flow path is affected by the condition of their associated suction pipe.For example if a void is found in the suction piping that exceeds the pre-established acceptance criteria, then the train and associated components would be inoperable and the appropriate ECCS Technical Specification entered.Procedure 0-ADM-547 (Gas Accumulation Management Program, GAMP) was created in response to NRC Generic Letter 2008-01, Managing Gas Accumulation in High Head Safety Injection (HHSI), Low Head Safety Injection (LHSI), Residual Heat Removal (RHR), and Containment Spray (CS) Systems (GL 2008-01). This program includes details on monitoring, evaluating, trending, and controlling gas build-up in safety related fluid systems to maintain these systems OPERABLE.

Attachments 1-6 (RI-IR/SICS Gas Accumulation Monitoring Points) of this procedure list the gas accumulation monitoring points for Units 3 and 4 RHR, SI and CS systems. The list includes the high points associated with the RHR, SI and CS suction piping.Attachment 7 (UT Planning Flowchart) of 0-ADM-547 summarizes the Ultrasonic Testing (UT) process for the locations listed in Attachments 1-6. The UT results are compared against the acceptance criteria.

If the results are within the acceptance criteria an Action Request (AR) is generated and the location vented. If the results are not within the acceptance criteria, the affected SSC is declared inoperable, the void is vented and an AR is generated.

As a result, an AR is generated any time voids are identified when UT is performed.

These ARs are screened for conditions adverse to quality and are what Turkey Point uses to trend and correct gas intrusion in suction and discharge piping. ARs that identify conditions adverse to quality are coded as Condition Reports (CRs) and receive condition evaluations.

AR that identifies conditions not adverse quality may be coded as Routine Work Types (RWTs) for tracking purposes.Ouestion 2 Have changes been implemented in the core spray system which require the monitoring and, if necessary, venting of the core spray system?Response 2 Unit 3: No changes were implemented on Unit 3 Containment Spray System. One location was identified for monitoring.

The location identified on Unit 3 Containment Spray System is monitored as part of procedure 0-ADM-547 (Gas Accumulation Management Program).

Turkey Point Units 3 and 4 L-2011-036 Docket Nos. 50-250 and 50-251 Attachment 1 Page 3 of 7 Unit 4: A vent valve was installed on Unit 4 Containment Spray System. The vent valve installed is one of the three locations that were identified for monitoring.

The vent valve was installed because that was the only point with a potential to exceed acceptance criteria.

The locations identified on Unit 4 Containment Spray System are monitored as part of procedure 0-ADM-547 (Gas Accumulation Management Program).These locations are monitored and vented (as required) under procedure 0-ADM-547.

An AR is generated for any location where a void is detected.Ouestion 3 Address any discrepancies between the systems evaluated in the PWROG report and those at Turkey Point and any discrepancies between the PWROG pump suction void criteria and NRC Inspection guidance, Rev.9.Response 3 I. Discrepancies between the systems evaluated in the PWROG report and Turkey Point systems One of the tasks associated with PWROG PA-SEE-450 was to survey operating plants to gather any correspondence between plants and the vendors relative to pump operability when subjected to gas ingestion.

The goal of this survey is two-fold; one is to gather available data currently used by the plants to justify pump operability and the other is to assess whether there is consistency between the vendors relative to what is considered acceptable for various pump designs. The survey results and the final reports associated with the PWROG PA-SEE-450 provided insights on the nature of the interim pump acceptance criteria.

This criteria was ultimately incorporated and refined through discussions with the NRC and Industry in documents such as NEI 09-10 and the NRC guidance referenced in the NRC TI 177.The suction side of the ECCS (i.e. RHR, LHSI, HHSI, and CS) piping was evaluated at Turkey Point by considering the impact of the gas on pump operation.

The void fractions used to determine the acceptance criteria were based upon the results of PWROG report Pump Gas Ingestion Tolerance criteria.

The discharge side of the ECCS piping which has a diameter equal to or greater than 4" was evaluated at Turkey Point using the PWROG Gas Void pressure pulsations void size. However, small bore piping (i.e. less than 4")was not considered during this testing. Therefore, for 3" piping the acceptable void at Turkey Point was scaled down by the ratio of area between the two different pipe sizes. For the 2", SI piping additional conservatism was added based on analysis.II. Discrepancies between the PWROG pump suction void criteria and NRC Inspection Guidance, Rev. 10 The following is a summary of the criterion in question and pump data for the associated components:

PWROG Criteria (from PWROG Report Pump Gas Ingestion Criteria for mechanical integrity:

PA-SEE-450 Task 2, Rev. 0):

Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 L-2011-036 Attachment 1 Page 4 of 7 Case Single-Stage Multi-Stage

/ Stiff Shaft Multi-Sage

/ Flexible Shaft Steady-State 2% 2% 2%Transient 5% for 20 sec. 20% for 20 sec. 10% for 5 sec.QBEP Range 70%- 120% 70%- 140% 70%- 120%NEI 09-10 and NRC Inspection guidance: D for PWR Typical Pumps% Q/QBEP Multi-Stage Multi-Stage Single Stage Stiff Shaft Flexible Shaft Steady State 40%-120% 0.02 0.02 0.02 Operation Steady State <40% or >120% 0.01 0.01 0.01 Operation Transient 0.05 for 0.20 for 0.10 for Operation 7<20 sec <20 sec <5 sec Transient 0.05 for 0.05 for 0.05 for Operation

<70% or >120% <20 sec 520 sec <5 sec Turkey Point (PTN) Associated Pump's data: As outlined in PTN calculation PTN-i 10389-002-M02, PTN utilized void criteria (0) consistent with the Industry and NRC guidance.

The following summarizes Best Efficiency Point (BEP) criteria used in the analysis for the respective ECCS pumps. In all cases, the PTN analysis is consistent with the Industry and regulatory guidance.* RHR Best Efficiency Point (BEP) is 83% at 3750 gpm (RHR-3A Pump Curve, Ingersoll-Rand Curve No. 46933, 6/9/69.)* CS Best Efficiency Point (BEP) is 75% at 1250 gpm (Goulds Pumps Certificate of Conformance, Dated 6/26/95, for Pump Serial Number 217B871, Model 3736.)* SI Best Efficiency Point (BEP) is 65% at 450 gpm (HHSI Pump Curve, Worthington Pump Company, Pump Type WTS-81 1, Curve E-20901 1, dated 10/17/68.)

The differences between the original PWROG pump suction void criteria and the current NEI and NRC inspection guide criteria as summarized below.I.2.3.4.5.QBEP range for steady state operation/single stage: 70%-120% vs. 40%-120%QBEP range for steady state operation/Multi Stiff: 70%-140% vs. 40%-120%QBEP range for steady state operation/Multi flexible:

70%-120% vs. 40%-120%QBEP range for Transient operation/Multi Stiff: 70%-140% vs. 70%-120%No data is included in the PWROG with regards to Steady State/Transient Operation when the pumps' % Q/ QBEP is less than 40 or greater than 120 however, PTN for transient operations used a void fraction which is in accordance with NEI 09-10 and NRC Inspection guidance.The PTN analysis was consistent with the original PWROG criteria and meets the existing Industry and NRC guidance.

Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 L-2011-036 Attachment I Page 5 of 7 Ouestion 4 Were procedures changed to address suction piping venting of RHR, where necessary?

Response 4 Yes, procedures 3/4-OSP-202.2, RHR Pump and Piping Venting and 3/4-OP-050, Residual Heat Removal System were updated to reflect the installation of vent valves on the suction lines of Unit 3 and 4 RHR system. The following table shows the applicable locations:

RISuct ion- Poedr Points Sutrn roedue.r PoisPots 3-OP-050 and 4-OP-050 and.P-5 P-22 3-OSP-202.2 4-OSP-202.2 3-OP-050 and 4-OP-050 and P-6 P-25 3-OSP-202.2 4-OSP-202.2 4-OP-050 and 4-OSP-202.2 Turkey Point Units 3 and 4 L-2011-036 Docket Nos. 50-250 and 50-251 Attachment 1 Page 6 of 7 Ouestion 5 The licensee states that gas intrusion instances are entered into the CAP for evaluation if the void exceeds a certain criteria.

How is the licensee aware of adverse trends at specific locations if all gas intrusion instances are not tracked and trended through the CAP?Response 5 All instances where a gas intrusion (i.e. exceeding or within acceptance criteria) has been detected are tracked and trended through CAP. In addition, a database exists with results of UT'd points for trending.Procedure 0-ADM-547 (Gas Accumulation Management Program, GAMP) was created in response to NRC Generic Letter 2008-01, Managing Gas Accumulation in ECCS, RHR, and CS Systems (GL 2008-01).

This program includes details on monitoring, evaluating, trending, and controlling gas build-up in safety related fluid systems to maintain these systems OPERABLE.Section 4.4 (Trending) of this procedure requires that:* void information is trended for each monitored point over each cycle of operation* and that an AR is generated for each abnormality detected to document the investigation and corrective actions.This process is illustrated in Attachment 7 (UT Planning Flowchart) of this procedure.

As shown in this attachment after the results are obtained one of the following is performed:

• If the UT results show that the pipe is full of water, no action is required.* If the UT results show that the pipe has a void which is within the acceptance criteria; an AR is generated and the location is vented.* If the UT results show that the pipe is not full of water because the void size is outside of the acceptance criteria; the Shift Manager is notified of the system not being operable, the location is vented and an AR is generated.

Ouestion 6 The licensee states that due to previous gas intrusion, training was conducted for Operations personnel.

Has training been updated or expanded beyond operations since evaluation of GL 2008-0 1?Response 6 Yes, training has been updated and expanded beyond operations since evaluation of GL 2008-01.Engineering had continuing training which included GL 08-01 training.The concept of gas intrusion is covered with the operators during the Generic Fundamentals program, a separate lesson on water hammer, again during the initial training of SOER 97-1 and periodically in continuing training.An information bulletin has been prepared and distributed to Operations, Engineering, Chemistry and Maintenance.

The training bulletin has the purpose of enhancing knowledge on the Gas Accumulation Management Program.

Turkey Point Units 3 and 4 L-2011-036 Docket Nos. 50-250 and 50-251 Attachment 1 Page 7 of 7 Ouestion 7 The licensee referenced gas transport analyses conducted by Numerical Applications, Inc. (NAI). Many licensees have contracted with NAI to evaluate gas voids using the computer code GOTHIC, if this is the case, confirm and note that the NRC is pursuing additional evaluation of the applicability of GOTHIC to two-phase, two component flow. The NRC may need to conduct further evaluation at a later date of the licensee's use of GOTHIC. If the licensee used another method for detailed gas transport analysis, explain the method used.Response 7 All of the GAMP acceptance criteria were established such that the maximum void size at any location would not create a void exceeding 2% at any pump suction for a maximum duration of 0.5 seconds. This establishes an extremely conservative void size in that it uses the steady state 2% criteria for what in reality is a transient (5-20% void allowed) and as such, transport analysis was not required.

GOTHIC was used to understand the behavior of the gases in the suction piping of the ECCS. In some cases however, a more complex analysis was required to address the behavior of potential gas voids located in the Emergency Core Cooling System (ECCS) discharge piping. Transport analyses were performed by an outside contractor using GOTHIC to address water hammer in ECCS discharge piping.

Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 L-2011-036 Attachment 2 Attachment 2 Excerpt from Turkey Point Procedure 0-ADM-547 Gas Accumulation Management Program Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 L-2011-036 Attachment 2 Attachment 2 Excerpt from Turkey Point Procedure O-ADM-547 Gas Accumulation Management Program REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 13 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT I UNIT 3 RHR GAS ACCUMULATION MONITORING POINTS (Page 1 of 6)GRP # -Differentiates the monitoring points for a system to inside or outside containment.

• GRP 1 -RHR Outside Containment

• GRP 2 -RHR Inside Containment MONITOR POINT -The point number assigned by the initial investigation of PTN for GL 2008-01. This allows cross referencing of the points being monitored to the correspondence documenting the initial evaluation and justifying monitoring these points.VENT VALVE -The valve located at the high point to be used to remove air/void at that point. Those that do not have designated vents will have the void removed using some other method. Normally this will be to operate the system in a test mode and purge the void.Acceptance Criteria is met when the measured 1/2 Arc length (column 7) is less than the specified value.Acceptance Criteria assumes only one location is voided. If multiple voids are found, then additional Engineering evaluation will be required.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 14 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT I UNIT 3 RHR GAS ACCUMULATION MONITORING POINTS (Page 2 of 6)5613-M-3050 14" 10' Access to RHR Pits 4-3 i8 P-5 3-1490 Sh S Sch = Left side of MOV-3-860A T .3-OSP-202.2 3-OP-050 561Sh2 40 Elevation

= 7'2-13/16" T.S.3.52.1 5613-M-3050 1.89 in 14" 10' Access to RHR Pits 1-7/8" P-6 3-1491 Sh 1 Sch = Left side of MOV-3-860B 3-OSP-202.2 3-OP-050 1 --41 5613-P-600-S Sh= LfsieoMO3-6B T.S.3.5.2 3OP2223O-5 561 3- 0Sh 240 Elevation

= 7' 3-5/8" T.S.3.6.2 Sh 2 T.S.3.6.2.1I HX Room 5613-M-3050 10" 3" from the weld line of the 3.29 in 1 P-8 NA Sh 1 Sch elbow towards penetration 3-1/4" 3-OSP-050.2 3-OP-050 5613-P-602-S S #5 T.S.3.5.2 Sh 3 Elevation

= T.S.3.6.2.1 4'410-1/2" REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 15 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT I UNIT 3 RHR GAS ACCUMULATION MONITORING POINTS (Page 3 of 6)5613-M-3050 " HX Room 3.07 i I P-9 NA Shi1 Sch = 3" from the Penetration

1. 2 3-1/1 6" 3-OSP-050.2 3-OP-050 561 3-P-602-S 4S(See Node 380)Sh 3 Elevation

= 4'10-1/2"T.352 5613--3050Pipe

& Valve Room 2" 3" from the elbow 1.78 in 1 1 80S 4-741B T.S.3.0.3 3_____ ________ ~~~~~~~Elevation_25'-6"____

_______________

5613-M-3050 8" Pipe & Valve Room 3.20 in 1 P-13 3-940-N Sh 1 Sch = 3" from Vent Valve 3-940N 3-3/16" 3-OSP-202.2 3-OP-050 5613-P-601-S 4 S( e o e3 0 ....S3120 Elevation

= 254'1-1/4" N/A Sh 1 5613-M-3050 8" Pipe & Valve Room 6.25 in 1 P-48 NA Sh 1 Sch = 3" from MOV-3-872 6-1/4" 3-OSP-202.2 3-OP-050 5613-M-3001 8-Sp aveRo .0i 5613-P-601-S 10S Elevation

= 20'-0" N/A Sh 1 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 16 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT I UNIT 3 RHR GAS ACCUMULATION MONITORING POINTS (Page 4 of 6)1 P-67 3-761 E 5613-M-3050 Sh 1 5613-P-602-S Sh 2 12" 10" from Vent Valve 3-761 E, between the Vent Valve and the Flow Element Elevation

= 24'-0" 2.52 in 2-1/2" T.S.3.0.3 3-OSP-202.2 3-OP-050 S5613-M-3050 2" Pipe & Valve Room 3.73 in 1 P-68 3-741 C 56 1 Sch = 12 from Vent Valve 3-11/16" 3-OSP-202.2 3-OP-050 S34 561 3-P-822-S 80S C-6T.0____ _______ _____ jSh 1 Elevation 25'-6"T.3O3 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 17 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 1 UNIT 3 RHR GAS ACCUMULATION MONITORING POINTS (Page 5 of 6)561 3-M-3 064 10 Sh 1 Sch = Downstream of 3.0 in Max.2 P-105 3-1495 140 8" MOV-3-744B 3-OSP-202.2 3-OP-050 563- T.S..0.Sch = Elevation

= 21'-0" Shi 121______561 -M-064 8" Downstream of 3 nMx 2Sh-103.3-1499aSh 56113-P-587-S Sch = Penetration 11 NA3-OSP-202.2 3-OP-050 P120 Elevation

= 26'-0" Sh 1 3M0 8"wUstream of 3.5 in Max.2 P-117 3-1498 10 Sch8= 3-876D 3-OSP-202.2 3-OP-050 5613-P-586-S S 120 Elevation

= 22'-0" NA- -2.3O Sh 1 5613-M-3064 8" Upstream of Valve 2 P-127 3-1496 Sh 1 Sch = 3-876A 3-OSP-202.2 3-OP-050 5613-P-586-S 120 Elvaio3=.60.3N/

561 3-P-586-S 120 Elevation

= 21'-0" N/A Sh 1 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 18 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 1 UNIT 3 RHR GAS ACCUMULATION MONITORING POINTS (Page 6 of 6)56 1 3--08" Upstream of Check 2.0 inl Max.2 P-142 3-1497 Sch = Valve 3-OSP-202.2 3-OP-050 561 3-P-586-ST.S.3.0.3 ShR1'120 3-876- BNS.3E0. c ,$VIEh 1C REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 19 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 2 UNIT 3 SI GAS ACCUMULATION MONITORING POINTS (Page 1 of 6)GRP # -Differentiates the monitoring points for a system to inside or outside containment.

GRP 3 -SI Outside Containment GRP 4 -SI Inside Containment.

MONITOR POINT -The point number assigned by the initial investigation of PTN for GL 2008-01. This allows cross referencing of the points being monitored to the correspondence documenting the initial evaluation and justifying monitoring these points.VENT VALVE -The valve located at the high point to be used to remove air/void at that point. Those that do not have designated vents will have the void removed using some other method. Normally this will be to operate the system in a test mode and purge the void.Acceptance Criteria is met when the measured 1/2 Arc length (column 7) is less than the specified value.Acceptance Criteria assumes only one location is voided. If multiple voids are found, then additional Engineering evaluation will be required.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 20 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 2 UNIT 3 SI GAS ACCUMULATION MONITORING POINTS (Page 2 of 6)561 3-M-3062 3" from Vent Valve 2.29 in 3 P-12 3-895T Sh 2 4" 3-895T 2-1/4" 0-OSP-202.3 0-OSP-202.3 561 --9 -S , lowElevation

= 29'-6" T.S.3.0.3 Sh 2 561 3-M-3062 3" from Vent Valve 0.61 in 3 Pi 3-42h22"3-1492 9/16" 0-OSP-202.3 0-OSP-202.3 561 3-P-823-S Sch = 160 Elevation

= 31'-0" T.S.3.0.3 Sh 1 561 3-M-3062 Pipe & Valve Room 3" from Vent Valve 0.85 In 3 P-16 3-1493 Sh 2 2" 3-1493 13/1 6" 0-OSP-202.3 0-OSP-202.3 561 3-P-823-S Sch = 160 Eeain=2'3 Sh 1 3/8" 2Pipe & Valve Room 5613-M-3062 3" from Vent Valve 0.91 in 3 P-12 3-194 Sh 2 2" 3-1494 7/8" 0-OSP-202.3 0-OSP-202.3 5613-P-823-S Sch = 160 561 Elevation

= 28' 5- T.S.3.0.3 Sh 2 1/2" 3" from Ventalve_.85_i REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 21 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 2 UNIT 3 SI GAS ACCUMULATION MONITORING POINTS (Page 3 of 6)5613--3062RWST 56 --023" from the Vent 2.27 in 3 P-30 3-1488 Sh 1 8" Valve 3-1488 2-1/4" 0-OSP-202.3 0-OSP-202.3 0Elevation

= 19' T.S.3..3 Sh 1 5/8" 5613-M-3062 3" from support 2.36 in 3 P-38 NA Sh 2 4" 3-SIH-72 2-5/16" 0-OSP-202.3 0-OSP-202.3 5613-P-597-S Sch = 80S Elevation

= 25"-5-T.303 Sh 2 3/8"TS3.3 5613-M-3062 Pipe & Valve Room 1.85 in 3 P-40 NA Sh 2 2" Second elbow from 1-13/16" 0-OSP-202.3 0-OSP-202.3 561 3-P-823-S Sch = 160 Penetration

1. 28 Sh 1 Elevation

= 26-0" T.S.3.0.3 5613-M-3062 Pipe & Valve Room 3 P-49 NA Sh 1 3" Upstream of 2.74 in.5613-P-597-S Sch = 80S MOV-3-869 N/A O-OSP-202.3 O-OSP-202.3 Sh 1 Elevation

= 26'-6" REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 22 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 2 UNIT 3 SI GAS ACCUMULATION MONITORING POINTS (Page 4 of 6)Containment Spray 5Room 3" from 3.50 i 3 P-50 NA 1 5613- 4" MOV-3-843B on the 3-1/2" 0-OSP-202.3 0-OSP-202.3 P-823- Sh 2 Sch = 120S downstream sideT...3 P-823-S Sh 2 (node 26)T.303________ ~~~~~~~~Elevation_=_29'-6" ______ _____ ________5613-M-3062 1.43 in 3 P-5I NA Sh 1 4" 3" from Vent Valve 1-7/1 6" 0-OSP-202.3 0-OSP-202.3 561 3-P-597-S Sch = 80S 3-395DT.3.3 Sh 1T...3 561 3-M-3062 3" from Vent Valve 0.65 in 3 PV Sh 1 5615 3-940V 2" 3-940V 5/8" 0-OSP-202.3 0-OSP-202.3 5613-P-9 E i N 8 Sh~- 3 lvto'C8'2

....

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 23 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 2 UNIT 3 SI GAS ACCUMULATION MONITORING POINTS (Page 5 of 6)NOTE 1: Pump Casing Water Solid is determined by water in the vent line which is the highpoint.

The vent line may have air but must have some water present tn.n.id.rtePmnC.i Wfr ld 561S3M3062 Pump Casing Water 3 P-69 3-944A 5613-P-5022 3/4" 3B HHSI Pump Vent Solid O-OSP-202.3 O-OSP-202.3 Sh 1 T.S".3.5.2 561 3-M-3062 Pump Casing Water 3 -70 3-944B 5613-P-5021 3/4" 3B HHSI Pump Vent Solid 0-OSP-202.3 O-OSP-202.3 56Sh 1 T.S.3.5.2 5613-M-3062 Pump Casing Water 5 P7 3-4C Sh 1 3/4" 3A HHSI Pump Vent Solid 0-OSP-202.3 0-OSP-202.3 56Sh 1 T.S.3.5.2 5613-M-3062 Pump Casing Water 3 P-72 3-944D 5613-P-5020 3/4" 3A HHSI Pump Vent Solid 0-OSP-202.3 0-OSP-202.3 Sh 1 T.S.3.5.2 REVISION NO.: PROCEDURE TITLE: PAGE:__3 GAS ACCUMULATION MANAGEMENT PROGRAM 24 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 2 UNIT 3 SI GAS ACCUMULATION MONITORING POINTS (Page 6 of 6)5613-M-3062 Upstream of 4 P-120 3-1500 Sh 1 2" FE-3-933 5613-P-764-S Sch = 160 Elevation

= 26'-10" Sh 1 N/A N/A 0-OSP-202.3 0-OSP-202.3 REVISION NO.: PROCEDURE TITLE: PAGE: 3 3_GAS ACCUMULATION MANAGEMENT PROGRAM 25 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 3 UNIT 3 CS GAS ACCUMULATION MONITORING POINTS (Page 1 of 2)GRP # -Differentiates the monitoring points for a system to inside or outside containment.

• GRP 5 -CS Outside Containment

• GRP 6 -CS Inside Containment (currently no points are identified)

MONITOR POINT -The point number assigned by the initial investigation of PTN for GL 2008-01. This allows cross referencing of the points being monitored to the correspondence documenting the initial evaluation and justifying monitoring these points.VENT VALVE -The valve located at the high point to be used to remove air/void at that point. Those that do not have designated vents will have the void removed using some other method. Normally this will be to operate the system in a test mode and purge the void.Acceptance Criteria is met when the measured 1/2 Arc length (column 7) is less than the specified value.Acceptance Criteria assumes only one location is voided. If multiple voids are found, then additional Engineering evaluation will be required.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 26 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 3 UNIT 3 CS GAS ACCUMULATION MONITORING POINTS (Page 2 of 2)PNT &, ELE..VATION .RITER ,-PGE EZt OS,.561 3-M-3062 2.39 inN 5 -6NASh 1 16' Either side of "T" -38 3-NOP-068 or 3-NOP-068 or P-62 VLý NA C2 I-3/8""bTQ 561 3-P-599-S Sch = 10S @ Node 375 TS36213-OSP-068.2 3-OSP-068.2 Sh 2T.... 1 NUM ......NS.E.W F -... ....

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 27 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 4 UNIT 4 RHR GAS ACCUMULATION MONITORING POINTS (Page 1 of 6)GRP # -Differentiates the monitoring points for a system to inside or outside containment.

• GRP 1 -RHR Outside Containment

• GRP 2 -RHR Inside Containment MONITOR POINT -The point number assigned by the initial investigation of PTN for GL 2008-01. This allows cross referencing of the points being monitored to the correspondence documenting the initial evaluation and justifying monitoring these points.VENT VALVE -The valve located at the high point to be used to remove air/void at that point. Those that do not have designated vents will have the void removed using some other method. Normally this will be to operate the system in a test mode and purge the void.Acceptance Criteria is met when the measured 1/2 Arc length (column 7) is less than the specified value.Acceptance Criteria assumes only one location is voided. If multiple voids are found, then additional Engineering evaluation will be required.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 28 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 4 UNIT 4 RHR GAS ACCUMULATION MONITORING POINTS (Page 2 of 6)ecc 4 e(Speolea1 5614-M-3050 4.40 in P-22 4-899C Sh 1 14" 3" from MOV-4-860A Elev 4-3/8" 4-OP-050 4-OP-05 5614-P-503-S

= 7- 5-9/16" T.S.3.5.2 Sh 2 T.S.3.6.2.1 5614-M-3050 Pipe & Valve Room 2.52 in P-23 4-940N Sh 1 8" 3" upstream of Vent Valve 2-1/2" 4-OP-050 4-OP-050 5614-P-504-S 4-876G Sh 1 Elev = 20'-0" N/A 5614-M-3050 2 elbow downstream of Sh 1 Valve 4-741 B, 2' 1.86 in 2"P-25 4-741G 2" downstream from the weld 1-7/8" 4-OSP-202.2 4-OP-050 5614-P-815-S line T.S.3.0.3 Sh. 1 Elev = 27'- 3" REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 29 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 4 UNIT 4 RHR GAS ACCUMULATION MONITORING POINTS (Page 3 of 6)1 P-44 4-741G 5614-M-3050 Sh 1 5614-P-815-S Sh 1 2" 3 rd elbow upstream of Valve 4-741A, 3" downstream Elev = 27'- 3" 1.86in 1-7/8" T.S.3.0.3 4-OSP-202.2 4-OP-050 5614-M-3050 Downstream of Sh 1 MOV-4-860B, 3" 2.48in P-46 4-899E Sh1 14" downstream of 2-7/16" 4-OP-050 4-OP-050 5614P503-S 4-899E connection Elev = T.S.3.5.2 Sh 2 7'- 4-15/16" 561 4-M-3050 561 3" Upstream of Valve 3.52 in P-52 4-767F 561 10" 4-757C 3-1/2" 4-OSP-202.2 4-OP-050 5614-P-505-S Elev = 5'- 0-1/2" T.S.3.6.2.1 Sh 1 5614-M-3050 3.64 in P-53 4-1501A Sh 1 Sch 6" from Support SR-637 3-5/8" 4-OSP-202.2 4-OP-050 5614-P-505-S

=40S Near Valve 4-1501 T.S.3.0.3 Sh 3 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 30 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 4 UNIT 4 564--05e,.Upstream from MOV-4-872 5 59 in 1 P-54 4-942L 51'P04S 8" between the valve and the 5-1/2" 4-OSP-202.2 4-OP-050 56GS- -CUL-I Elbow N/A Sh 1 Elev = 26'-0" I561 4-M-3050 1"3.25 in Sh 1 12 3" Downstream from Vent 3-1/4" ..........

4-OP-050 4Sch V .ale 46 o P-73 4-7H 5614-P-5O5-S

=,,S VaSve 6"~~~~~Sh 3=,uT...3 5S61 4-M-3050 S .h 1 Located Upstream of Valve 3.15 in 1 P-74 4-767E --"10" 4-754A on the Elbow 3-1/8" 4-OSP-202.2 4-OP-050 I .r-P-SO -S' " Elev = 5'- 0-1/2" T ..3.. S3 2 ShCEPA 2 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 31 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 4 UNIT 4 RHR GAS ACCUMULATION MONITORING POINTS (Page 5 of 6)iý=IWW Wý- AOW14.I-N$AkETCONTffI(1MEWT 564--364 8" Upstream of Check valve PIP 1 4.5" 2 P-204 4-940X-A Sh1Sch 4-876E 4-OSP-202.2 4-OP-050 5614-P-509-S

=120 Elev = 21'-5" N/A Sh 1 8" Upstream of Check valve Sh 1 45 2 P-205 4-940J-A 564P59S Sch 4-876D 4-OSP-202.2 4-OP-050 564P9Sh 1=120 Elev = 24'-4-7/16" N/A 8 Downstream of vent valve Sh 1I.5 2 P-208 4-4922-A 564P59S Sch 4-876E 4-OSP-202.2 4-OP-050 Sh62 =120 Elev 23-6" T.S.3.0.3 Sh 2kR5C' ni REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 32 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 4 UNIT 4 RHR GAS ACCUMULATION MONITORING POINTS (Page 6 of 6)

NGNTAI9 MEN Rw8" Upstream of valve 3 2 P-209 4-940H-A ShISch 4-940H 4-OSP-202.2 4-OP-050 5614-P-509-S

=120 Elev = 21-5" T.S.3.0.3 Sh 2 5614--364 8" Upstream of Check valve 2 P212 4-940L-A Sh1Sch 4-876C 304-OSP-202.2 4-OP-050 561 4-P-509-S

=120 Elev = 21-6" T S 3.0 3 Sh 4 Procedures that open MOV-3-750 5614-M-3050 and MOV-3-751 P-209 N/A Sh 1 Sch At MOV-4-750 N/A open 750 first to4-OP-050 5614-P-5Sc-S

=120 Elev. 1 9-0" vent any trapped Sh 2 gasses to the RPV.5614_M 3064_ (CR 00-1164) Upsteam fC eck alv REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 33 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 5 UNIT 4 SI GAS ACCUMULATION MONITORING POINTS (Page 1 of 6)GRP # -Differentiates the monitoring points for a system to inside or outside containment.

• GRP 3 -SI Outside Containment

• GRP 4 -SI Inside Containment.

MONITOR POINT -The point number assigned by the initial investigation of PTN for GL 2008-01. This allows cross referencing of the points being monitored to the correspondence documenting the initial evaluation and justifying monitoring these points.VENT VALVE -The valve located at the high point to be used to remove air/void at that point. Those that do not have designated vents will have the void removed using some other method. Normally this will be to operate the system in a test mode and purge the void.Acceptance Criteria is met when the measured 1/2 Arc length (column 7) is less than the specified value.Acceptance Criteria assumes only one location is voided. If multiple voids are found, then additional Engineering evaluation will be required.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 34 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 5 UNIT 4 SI GAS ACCUMULATION MONITORING POINTS (Page 2 of 6)SLB 'EllI- MWi. "E ,, ' uiIP.,,',, 561 4-M-3062 Pipe & Valve Room 1.05 in 3-7 -49ASh 2 2" 3" from Vent Valve 1-1/32" 0-OSP-202.3 0-OSP-202.3 P-8 419A 5614-P-783-S 2"4-1494 Sh 2 Elev = 28-6" T.S.3.0.3* 5614-M-3062 Pipe & Valve Room0.5i 3Sh 2 3" from Vent Valve 1/6 -S-0. -S-0: P-9 419A 5614-P-783-S 2"4-1492 Sh 3Ele = 3-0'T.S.3.0.3 ,IIP0-.25 hl ac l A' 2- 3" fro Ven ValveRGý3 P-27 4-1493A Sh22" 3"fo etVle115/16" * -OSP-202.3 0-OSP-202.3 5614-P-783-S 4-14932....

5 1 P-8 -4144T.S.3.0.3' Sh 3 Elev = 31'-0" .303* If P-27 and P-28 are determined to be full water, then the acceptance criteria for P-29 is 11/4" (1.25") half arc length.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 35 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 5 UNIT 4 SI GAS ACCUMULATION MONITORING POINTS (Page 3 of 6)___IFý, Wt~r CGN1Q-ff .6 AI__VE-NjJ W E77 564M-023" from the Vent Valve 2.73 in ING6 4-02 h1 2 RC 3 P5 494J4-942J 2-11/16" 0-OSP-202.3 0-OSP-202.3 564P-7-S Sh 85 Elev = 20'-9-3/8" T.S.3.0.3 Sh 4 5614-M-3062 3" from Vent Valve 2.17 in 3 P-5 4-94 2-5/32" 0-OSP-202.3 0-OSP-202.3 4-947C 5614-P-572-S Sch =80S 4-947C ShElev = 33-9" T.S.3.0.3 5614-M-3062 3" from Vent Valve 21.5 in 3 P-59 4-947D Sh 1 3" 4-947C 1-1/32" 0-OSP-202.3 0-OSP-202.3 4-947C 5614-P-572-S Sch =80S Elev = 33'-9'* T.S.3.0.3 Sh 3 51M3023" from Vent Valve 1.58 in 3 P5 4-4AS13"4-947A 1-1/2" 0-OSP-202.3 0-OSP-202.3 4-947B 5614-P-572-S Sch =80S l v =3 -9T. 3 0 3 Sh 111 NOTE 1: Location P-41 is common to the suctions of both HHSI and CS. Purging for either system will eliminate the void for both.35614-M-3062 Downstream of P I1S 5 14 MOV-4-864B on the 3.43 in P-4 1 S 6 NOTE 1 NONE 16" opposite side of the 3-7/16" 0-OSP-202.3 0-OSP-202.3 N 5614-P-502-S Elbow T.S.3.0.3 Sh 3 Elev. = 19'-0" REVISION NO.: PROCEDURE TITLE: PAGE: 3 PROCEDURE NO.: GAS ACCUMULATION MANAGEMENT PROGRAM 36 of 42 O-ADM-547 TURKEY POINT PLANT ATTACHMENT 5 UNIT 4 SN GAS ACCUMULATION MONITORING POINTS (Page 4 of 6)1 F NOTE 2: Pump Casing Water Solid is determined by water in the vent line which is the highpoint.

The vent line may have air but must have some water present to consider the Pump Casing Water Solid.5614-M-3062 Pump Casing Sh 1 Water Solid 3 P-75 4-944E 5614 3/4" 4A HHSI Pump Vent Wate 2 O-OSP-202.3 O-OSP-202.3 5614-M-3062 3/" 4 HIPm etNOTE 2 Sh. 1 T.S.3.5.2 5614-M-3062 Pump Casing Sh 1 Water Solid P-76 4-944F 5614-M-3062 3/4" 4A HHSI Pump Vent NOTE 2 0-OSP-20223 0-OSP-202.3 Sh. 1 T.S.3.5.2 5614-M-3062 Pump Casing Sh 1 Water Solid P-77 4-944G 5614-M-3062 3/4" 4B HHSI Pump Vent NOTE 2 0-OSP-202.3 2-OSP-202.3 Sh. 1 T.S.3.5.2 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 37 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 5 UNIT 4 SI GAS ACCUMULATION MONITORING POINTS (Page 5 of 6)NOTE 2: Pump Casing Water Solid is determined by water in the vent line which is the highpoint.

The vent line may have air but must have some water present to consider the Pump Casing Water Solid.5614-M-3062 Pump Casing 0-OSP-202.3 3 4944H Sh 1 Water Solid 0-OSP-202.3 3 P78 4-5614-M-3062 3/4" 4B HHSI Pump Vent NOTE 2 At least every 31 Sh. 1 T.S.3.5.2 days.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 38 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 5 UNIT 4 Sl GAS ACCUMULATION MONITORING POINTS (Page 6 of 6)561f4-M-3062-Sh 1 On horiz pipe, next to 0.0 iO 5614-P-571-S support =- H- 3'0 N/A Sh. 1 E 2 561 4-M-3062 Between MOV-4-869

&2.4i0-S223 OP223 Sh "VLV -W 112.74 Rin LýP60 4-94 1B-A Sh"1Elbow0-S22.0OP223 5614-P-571-S E TS.3.03 Sh. 1 5614-M-3062 5614--362 2" Upstream of valve075 Sh 1 0.75i 4 P-224 4-941 B-A 5614-P-712-S Sch 4-941SB 0-OSP-202.3 0-OSP-202.3 Sh614-P--

=160 Elev = 26-10" N/A Sh. 1 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 39 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 6 UNIT 4 CS GAS ACCUMULATION MONITORING POINTS (Page 1 of 3)GRP # -Differentiates the monitoring points for a system to inside or outside containment.

• GRP 5 -CS Outside Containment

• GRP 6 -CS Inside Containment MONITOR POINT -The point number assigned by the initial investigation of PTN for GL 2008-01. This allows cross referencing of the points being monitored to the correspondence documenting the initial evaluation and justifying monitoring these points.VENT VALVE -The valve located at the high point to be used to remove air/void at that point. Those that do not have designated vents will have the void removed using some other method. Normally this will be to operate the system in a test mode and purge the void.Acceptance Criteria is met when the measured 1/2 Arc length (column 7) is less than the specified value.Acceptance Criteria assumes only one location is voided. If multiple voids are found, then additional Engineering evaluation will be required.

REVISION NO.: PROCEDURE TITLE: PAGE: 3 3_GAS ACCUMULATION MANAGEMENT PROGRAM 40 of 42 PROCEDURE NO.: 0-ADM-547 TURKEY POINT PLANT ATTACHMENT 6 UNIT 4 CS GAS ACCUMULATION MONITORING POINTS (Page 2 of 3)CUTS~~AN IED~PIN E~NOTE 1: Location P-41 is common to the suctions of both HHSI and CS. Purging for either system will eliminate the void for both.5614-M-3062 Downstream of 3.43 in P-41 Sh1MV484 nte4-NOP-068 or 4-NOP-068 or NT NOE 5614-P-502-S opposite side of the Elbow 3-7/16" 4-OSP-068.2 4-OSP-068.2 Sh 3 Elev. = 19-0 T.S.3.03 561 4-M-3 068 2.74 in Sh i Upstream of MOV-4-844A 4-NOP-068 or 4-NOP-068 or 5 P42 NONE 8" EOV o 20' 2-3/4" 4-OP-068.o 4-OP-068.o 5614-P-502-S Elev = 20' 4-OSP-068.2 4-OSP-068.2 Sh 3 Elev.3=.692.1 5614-M-3068 Sh 1 Downstream of Valve 2.76 in 8" 4-844B just before the 4-NOP-068 or 4-NOP-068 or 5 P43 4-896U 5614-P-502-S reducer 2-3/4" 4-OSP-068.2 4-OSP-068.2 Sh 1 Elev = 20' T.S.3.6.2.1 5614-P-5039 REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 41 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 6 UNIT 4 CS GAS ACCUMULATION MONITORING POINTS (Page 3 of 3)1~

REVISION NO.: PROCEDURE TITLE: PAGE: 3 GAS ACCUMULATION MANAGEMENT PROGRAM 42 of 42 PROCEDURE NO.: O-ADM-547 TURKEY POINT PLANT ATTACHMENT 7 UT PLANNING FLOWCHART (Page 1 of 1)