L-2010-030, Annual Report of Reactor Coolant Specific Activity Limits

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Annual Report of Reactor Coolant Specific Activity Limits
ML100620789
Person / Time
Site: Turkey Point  NextEra Energy icon.png
Issue date: 02/22/2010
From: Kiley M
Florida Power & Light Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2010-030
Download: ML100620789 (10)
v • d • e


Text

0FEB FPL.

2 2 2010 L-2010-030 POWERING TODAY. 10 CFR 50.36 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 2009 Annual Report of Reactor Coolant Specific Activity Limits The 2009 Turkey Point Units 3 and 4 Annual Reactor Coolant System (RCS) Specific Activity Report is submitted herein pursuant to Turkey Point Technical Specification (TS) 6.9.1.2.

For Turkey Point Unit 4: The reactor coolant specific activity limits of less than or equal to 1.0 microcurie per gram Dose Equivalent 1-131 and less than or equal to 100/E-bar microcuries per gram of gross radioactivity defined by Technical Specification 3.4.8.a and 3.4.8.b respectively, were not exceeded for Turkey Point Unit 4 during 2009.

For Turkey Point Unit 3: The reactor coolant specific activity limit of less than or equal to 1.0 microcurie per gram Dose Equivalent 1-131 was exceeded on March 16, 2009 at 0145. The reactor coolant specific activity limit of less than or equal to 100/E-bar microcuries per gram of gross radioactivity was not exceeded during 2009. Per TS 6.9.1.2 reporting requirements, Attachment 1 includes the following information for exceeding TS 3.4.8.a limit of 1.0 microcurie per gram Dose Equivalent 1-131:

(1) Reactor power history starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to the first sample in which the limit was exceeded (in graphic and tabular format);

(2) Fuel burnup by core region; (3) Clean-up flow history starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to the first sample in which the limit was exceeded; (4) History of degassing operations, if any, starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to the first sample in which the limit was exceeded; and (5) The time duration when the specific activity of the primary coolant exceeded 1.0 microcurie per gram Dose Equivalent 1-131.

Should there be any questions regarding this information, please contact Robert J. Tomonto, Licensing Manager, at (305) 246-7327.

Sincerely, Michael Kiley Vice President Turkey Point Nuclear Plant SM cc: Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant an FPL Group company

L-2010-030 Attachment I Turkey Point Unit 3 2009 Annual Report RCS Specific Activity

L'-2010-030 Attachment 1 TURKEY POINT UNIT 3 2009 ANNUAL

SUMMARY

REPORT FOR TS 6.9.1.2 REQUIREMENTS PRIMARY COOLANT SPECIFIC ACTIVITY ANALYSES RESULTS Turkey Point Unit 3 Technical Specification (TS) Primary Coolant 6.9.1.2 Requirements Specific Activity Analyses Results

1. Reactor power history starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to During operating Cycle 23, Turkey Point the first sample in which the limit was exceeded Unit 3 experienced a fuel defect. During the (in graphic and tabular format) subsequent refueling outage, in March 2009, the defect was located and removed from the core. During shutdown, the RCS Dose Equivalent Iodine (DEQ) limit specified in TS 3.4.8.a was exceeded. Table 1 provides the reactor power history and the reactor coolant system purification flow rates, on 30 minute intervals, starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to exceeding the TS limit. The araphic format is also provided in Fiaure 1.
2. Fuel Burnup by Core Region The fuel burnup by core region is provided in Figure 2. Note that, by design, the Turkey Point Unit 3 core design is rotationally symmetrical.
3. Clean-Up flow history starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to The clean-up flow history starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> the first sample in which the limit was prior to the first sample in which the limit exceeded. was exceeded is also provided in Table 1, as well as in Figure 1.
4. History of degassing operations, if any, The pressurizer steam space degassing is starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to the first sample in performed by aligning the pressurizer steam which the limit was exceeded. space sample line to the Volume Control Tank (VCT) in accordance with station procedures. VCT degassing is accomplished by venting the VCT gas space to the waste gas system. Degassing operations were in progress at the time that the TS limit was exceeded. Specifically, the pressurizer steam space degassing commenced on 3/12/09 at 00:23 in preparation for the refueling outage. VCT venting was performed on 3/15/09 at approximately 16:00, and again multiple times on 3/16/09 to support reactor coolant system degassing operations.

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L-2010-030 Attachment 1 TURKEY POINT UNIT 3 2009 ANNUAL

SUMMARY

REPORT FOR TS 6.9.1.2 REQUIREMENTS PRIMARY COOLANT SPECIFIC ACTIVITY ANALYSES RESULTS Turkey Point Unit 3 Technical Specification (TS) Primary Coolant 6.9.1.2 Requirements Specific Activity Analyses Results

5. The time duration when the specific activity of As indicated in Table 2, the TS 3.4.8.a limit the primary coolant exceeded 1.0 microcurie of less than or equal to 1.0 microcurie per per gram DOSE EQUIVALENT 1-131 gram Dose Equivalent (DEQ) 1-131 was exceeded on 3/16/09 at 01:45, and cleaned up to below the TS limit of < 1.0 microcurie per gram on 3/16/09 at 0400, with a confirmation sample on 3/16/09 at 0740.

The time duration when the specific activity of the primary coolant exceeded the TS limit was 2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and 15 minutes. The maximum observed value of 1.09 DEQ 1-131 was observed in a sample taken approximately 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and 45 minutes after (the reactor was tripped manually at) the start of the Turkey Point Unit 3 Refueling Outage.

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L-2010-030 Attachment 1 TABLE I Turkey Point Unit 3 History of Reactor Power and Clean-up Flow Reactor Clean-up Flow History Date & Time Power (gpm)

(%)

3/13/09 21:45 100 108 3/13/09 22:15 100 108 3/13/09 22:45 100 107 3/13/09 23:15 100 108 3/13/09 23:45 100 108 3/14/09 00:15 100 108 3/14/09 00:45 100 108 3/14/09 01:15 100 108 3/14/09 01:45 100 107 3/14/09 02:15 100 108 3/14/09 02:45 100 108 3/14/09 03:15 100 108 3/14/09 03:45 100 108 3/14/09 04:15 100 108 3/14/09 04:45 100 108 3/14/09 05:15 100 108 3/14/09 05:45 100 108 3/14/09 06:15 100 108 3/14/09 06:45 100 108 3/14/09 07:15 100 108 3/14/09 07:45 100 108 3/14/09 08:15 100 108 3/14/09 08:45 100 108 3/14/09 09:15 100 108 3/14/09 09:45 100 108 3/14/09 10:15 100 108 3/14/09 10:45 100 108 3/14/09 11:15 100 108 3/14/09 11:45 100 108 3/14/09 12:15 100 108 3/14/09 12:45 100 108 3/14/09 13:15 100 108 3/14/09 13:45 100 108 3/14/09 14:15 100 108 3/14/09 14:45 100 108 3/14/09 15:15 100 108 3/14/09 15:45 100 108 3/14/09 16:15 100 108 3/14/09 16:45 100 108 3/14/09 17:15 100 107 3/14/09 17:45 100 107 3/14/09 18:15 100 107 1

L-2010-030 Attachment 1 TABLE I Turkey Point Unit 3 History of Reactor Power and Clean-up Flow Date & Time Reactor Power Clean-up Flow History

(%) (gpm) 3/14/09 18:45 100 107 3/14/09 19:15 100 108 3/14/09 19:45 100 108 3/14/09 20:15 100 108 3/14/09 20:45 100 108 3/14/09 21:15 100 108 3/14/09 21:45 100 108 3/14/09 22:15 100 108 3/14/09 22:45 100 108 3/14/09 23:15 100 108 3/14/09 23:45 100 108 3/15/09 00:15 98 108 3/15/09 00:45 95 107 3/15/09 01:15 90 107 3/15/09 01:45 87 108 3/15/09 02:15 82 108 3/15/09 02:45 77 108 3/15/09 03:15 75 107 3/15/09 03:45 70 108 3/15/09 04:15 66 108 3/15/09 04:45 61 108 3/15/09 05:15 57 108 3/15/09 05:45 53 108 3/15/09 06:15 50 108 3/15/09 06:45 49 108 3/15/09 07:15 49 108 3/15/09 07:45 50 108 3/15/09 08:15 50 108 3/15/09 08:45 50 108 3/15/09 09:15 50 108 3/15/09 09:45 50 107 3/15/09 10:15 50 108 3/15/09 10:45 50 108 3/15/09 11:15 50 108 3/15/09 11:45 50 108 3/15/09 12:15 51 108 3/15/09 12:45 51 108 3/15/09 13:15 51 108 3/15/09 13:45 51 108 3/15/09 14:15 51 108 3/15/09 14:45 51 108 3/15/09 15:15 50 108 2

L-2010-030 Attachment 1 TABLE I Turkey Point Unit 3 History of Reactor Power and Clean-up Flow Reactor Reamowr Clean-up Flow History Date & Time Power

(%)(gm (gpm) 3/15/09 15:45 50 108 3/15/09 16:15 50 108 3/15/09 16:45 51 108 3/15/09 17:15 50 108 3/15/09 17:45 50 108 3/15/09 18:15 50 108 3/15/09 18:45 50 107 3/15/09 19:15 50 108 3/15/09 19:45 50 108 3/15/09 20:15 48 108 3/15/09 20:45 44 108 3/15/09 21:15 38 108 3/15/09 21:45 34 107 3/15/09 22:15 30 108 3/15/09 22:45 29 107 3/15/09 23:15 24 108 3/15/09 23:45 23 108 3/16/09 00:15 0 108 3/16/09 00:45 0 108 3/16/09 01:15 0 109 3/16/09 01:45 0 108 3/16/09 02:15 0 107 3

L-2010-030, Attachment 1 Table 2 Turkey Point Unit 3 Specific Activity of Primary Coolant Exceeded TS Limit 3.4.8 . ,-

[1 microcurie per gram Dose Equivalent Iodine (1-131)]

DEQ 1-131 Date & Time (Microcurie per gram) 15-Mar-09 04:00:00 6.35E-03 15-Mar-09 08:00:00 1.01 E-02 15-Mar-09 12:00:00 1.08E-02 15-Mar-09 16:00:00 1.06E-02 15-Mar-09 20:00:00 1.06E-02 16-Mar-09 00:30:00 7.25E-01 2

Date &/Time 16-Mar-09 01:45:00 1.09E+00 Technical Specification 16-Mar-09 04:00:00 1.OOE+00 3.4.8/limit (1 microcurie per 16-Mar-09 07:40:00 6.99E-01 gram DEQ 1-131) was exceeded 16-Mar-09 11:30:00 5.35E-01 16-Mar-09 15:40:00 4.51E-01 16-Mar-09 20:00:00 3.67E-01 17-Mar-09 00:15:00 2.30E-01 17-Mar-09 02:00:00 1.82E-01 17-Mar-09 04:05:00 1.50E-01 17-Mar-09 08:00:00 1.02E-01 17-Mar-09 12:00:00 8.1OE-02

L-2010-030, Attachment 1 FIGURE 1 Reactor Power and Clean-up Flow Rate Prior to Turkey Point Unit 3 Iodine (1-131) Spike on 3116109 iiI~ ___________ ___________

-Izu

_1%

1004 ----------------------- ------------ - ---

80 ---- ------------------

60 1 .-----------------------.

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40 .......................--........................................................................ --------------------------------................

20 ---------- ----------------------- ------------------------ ------

7 ---- -----

0 3/12/09 12:00 3/13/09 0:00 3/13/09 12:00 3/14/09 0:00 3/14/09 12:00 3/15/09 0:00 3/15/09 12:00 3/16/09 0:00 3/16/09 12:00

-- %Power- Letdown Flow (gpm)

L-2010-030, Attachment 1 Figure 2 '

Fuel Burnup by Turkey Point Unit 3 Core Region 16381 MWD/MTU 47 PPM 1.478 CORE F-DELTA-H 1.747 CORE FQ I

dAB z2T 1 ZbA 7A 18DB ZJD 0.972 1.113 1.351 1,017 1.011 1.370 0.900 0,339 01891 1.172 1.437 1,071 1.098 1,467 1.055 0,595 53420 39940 22060 49270 50670 22760 36430 43240 1,018 1.356 1.696 1,237 1.256 1.738 1.233 0.714 24E 24E 24C 025D 24A 2D5E 23A 1.113 1.130 1.121 1.393 I1.160 1.191 1.0800 0.295 1.172 1.177 1.167 1.478 1.250 1.285 1.310 0.553 39940 39290 40700 22650 35020 37170 17430 42520 1.356 1.364 1.352 1.747 1,452 1.511 1.554 0.672 AbA ZbA Z38 Z11E 2 c 1.351 1.121 1.336 1.004 1.155 1.331 0.719 1.437 1.167 1.427 1.059 1.231 1.465 0.983 22060 40590 21670 51780 41060 21820 33190 1.696 1.352 1.681 1.213 1.436 1.737 1.146 23A 25D 238 248 25C 25B 23C 1.017 1,391 1.004 1.092 1.332 1.135 0.418 1.071 1.475 1.059 1.134 1.459 1.388 0.775 49270 22590 51900 39350 22100 19560 43960 1.237 1.744 1.213 1.311 1.726 1.645 0.992 23B 24A 24E 25C 239 23C 1.011 1.160 1.155 1.332 0,935 0.461 1.088 1.250 1.231 1.459 1.015 0.807 50670 35000 41040 22090 43050 44870 1.256 1.453 1.436 1.726 1.167 0.928

dbD Z11D ZbD ZbB .&Jc 1.370 1.192 1.331 1.135 0.461 1.467 1.296 1.465 1.398 0.906 22760 37150 21920 18550 44960 1.738 1.513 1.737 1.645 0.926 ii. ___________ IL ___________ IL .11 24C 25B 24C 23C 0.900 1.090 0.719 0.419 1.055 1.310 0.994 0.774 36430 17450 33190 43940 1.233 1.555 1.147 0.091 23A 0.339 0.296 NpI ASSEMBoL POWER REGION 0.585 0.554 AD ASSEMBLY BURNUP 43240 42560 SO ASSEMBLY PQ 1

0.714 0.674

] PhZL QVAflUUA REGION NUMBER OF POWER BURNUPS REGION NUMBER OF POWER BURNUPS IDENT. ASSEMBLIES SHARING TOTAL CYCLE IDENT. ASSEMBLIES SHARING TOTAL CYCLE 22B 1 0.972 53420 13940 24C 20 0.916 36820 14970 23A 12 0.529 44790 8260 24D 8 1.191 37160 20270 23B 16 0.963 49320 15710 24E 16 1.139 40090 19170 23C 16 0.439 44410 6610 2SA 8 1.344 21860 21860 23D 4 0.339 43240 4990 25B 16 1.108 18000 19000 24A 9 1.160 35010 19620 25C 8 1.332 22090 22090 24B 4 1.092 39350 17960 25D 20 1.359 22330 22330 CYCLE 23 - 16381 MWD/MTU

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