ML023360262
| ML023360262 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 11/04/2002 |
| From: | Taplett K South Texas |
| To: | Thadani M Office of Nuclear Reactor Regulation |
| Thadani M, NRR/DLPM, 415-1476 | |
| Shared Package | |
| ML023400438 | List: |
| References | |
| NOC-AE-02001368 | |
| Download: ML023360262 (3) | |
Text
[ C:\\WINDOWS\\TEMP\\GW}O0001.TMP Mail Envelope Properties (3DC6D47E.F13 :10: 16147)
Subject:
Fwd: Replacement Page NOC-AE-02001368 Creation Date:
11/4/02 2:46PM From:
"Kenneth Taplett" <kjtaplett@stpegs.com>
Created By:
kjtaplett@stpegs.com Recipients nrc.gov owf4.po.OWFNDO MCT (Mohan Thadani)
Post Office Route owf4_po.OWFN_DO nrc.gov Files Size Date & Time MESSAGE 138 11/04/02 02:46PM Mail Mime.822 40719 Options Expiration Date:
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Mohan Thadani - Fwd: Replacement Page NOC-AE-02001368 Page From:
"Kenneth Taplett" <kjtaplett @ stpegs.com>
To:
<mct@nrc.gov>
Date:
11/4/02 3:11PM
Subject:
Fwd: Replacement Page NOC-AE-02001368
- Mohan, Attached is the word processed page that you requested reflecting Amendments 128/117 and the dilution path requested changes.
Ken
REACTOR COOLANT SYSTEM COLD SHUTDOWN - LOOPS NOT FILLED LIMITING CONDITION FOR OPERATION 3.4.1.4.2
- a.
At least two residual heat removal (RHR) loops shall be OPERABLE* and at least one RHR loop shall be in operation**, and
- b.
Each valve or mechanical joint used to isolate unborated water sources shall be secured in the closed position.
APPLICABILITY:
MODE 5 with reactor coolant loops not filled.
ACTION:
- a.
With less than the above required RHR loops OPERABLE, immediately initiate corrective action to return the required RHR loops to OPERABLE status as soon as possible.
- b.
With no RHR loop in operation, suspend operations that would cause introduction into the RCS of coolant with boron concentration less than required to meet SHUTDOWN MARGIN of LCO 3.1.1 and immediately initiate corrective action to return the required RHR loop to operation.
- c.
With a valve or mechanical joint used to isolate unborated water sources not secured in the closed position, immediately suspend all operations that would cause introduction into the RCS of coolant with boron concentration less than required to meet SHUTDOWN MARGIN of LCO 3.1.1 and initiate action to secure the valve(s) or joint in the closed position and within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> verify boron concentration is within limits specified in LCO 3.1.1.2. The required action to verify the boron concentration within limits must be completed whenever ACTION c is entered. A separate ACTION entry is allowed for each unsecured valve or mechanical joint.
SURVEILLANCE REQUIREMENTS 4.4.1.4.2.1 At least one RHR loop shall be determined to be in operation and circulating reactor coolant at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
4.4.1.4.2.2 Each valve or mechanical joint used to isolate unborated water sources shall be verified closed and secured in position at least once per 31 days.
- Two RHR loops may be inoperable for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for surveillance testing provided the other RHR loop is OPERABLE and in operation.
"**The RHR pump may be deenergized for up to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> provided: (1) no operations are permitted that would cause introduction into the RCS of coolant with boron concentration less than that required to meet SHUTDOWN MARGIN OF LCO 3.1.1, and (2) core outlet temperature is maintained at least 10TF below saturation temperature.
SOUTH TEXAS - UNITS I & 2 3/4 4-6 Unit I - Amendment No.
Unit 2 - Amendment No.
,Ira