ML20069Q385

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Proposed Tech Specs 3/4.4.3.1, Reactor Coolant Sys Leakage- Leakage Detection Sys
ML20069Q385
Person / Time
Site: Clinton Constellation icon.png
Issue date: 06/27/1994
From:
ILLINOIS POWER CO.
To:
Shared Package
ML20069Q382 List:
References
NUDOCS 9406270383
Download: ML20069Q385 (8)
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Text

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Attachment 3 to U-602303 LS-94-011 Page 1 of 2 1

Proposed Changes to the Current Technical Specifications i

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I 9406270383 940620 PDR ADOCK 05000461 P PDR

Attachment 3 to U-602303 LS-94-n11 )

RFACTOR COOLANT SYSTEM Page 2 of 2 3__ /4'. 4 . 3 REACTOR COOLANT SYSTEM LEAKAGE LFAKAGE DETECTION SYSTEMS LIMITING CONDITION FOR OPERATION 3.4.3.1 The following reactor coolant ystem leakage detection systems shall be OPERABLE:

a. The drywell atmosphere particulate radioactivity monitoring system,
b. The drywell sump flow monitoring system, and
c. Either the drywell atmosphere gaseous radioactivity monitor'.ng system or the drywell air coolers condensate flow rate monitoring system.

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.

ACTION:

With only two of the above required leakage detection systems OPERABLE,

a. operation may continue for up to 30 days when the drywell atmosphere particulate radioactivity monitoring system is inoperable provided grab samples of the drywell atmosphere are obtained and analyzed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
b. operations may continue:
1. with the drywell equipment drain sump flow monitoring subsystem inoperable provided the drywell equipment drain sump flow rate is monitored and determined by alternate means at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />,
2. for up to 30 days' with the drywell floor drain sump flow monitoring subsystem inoperable provided the drywell floor drain sump flow rate is monitored and determined by alternate means at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />,
c. operation may continue for up to 30 days when the drywell atmosphere gaseous radioactivity monitoring system and the drywell air coolers condensate flow rate monitoring system are inoperable provided grab samples of the drywell atmosphere are obtained and analyzed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUIDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

July to

" Operation may continue afterpr-e44,1994, until the next COLD SHUIDOWN, provided the drywell floor drain sump flow rate is monitored and determined by alternate means at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. Additionally, the drywell atmosphere ,

particulate and gaseous radioactivity monitoring systems may be periodically  ;

taken out-of-service to perform scheduled preventive maintenance, surveillances i

and testing without entering the shutdown requirements of the ACTION statement. l 1

Amendment No. M,89 CLINTON - UNIT 1 3/4 4-12 l

. a;. Attachment 4 to U-602303 LS-94-011 Page1 of6 i Proposed Clianges to Improved Technical Specification Conversion Sulunitial (IP I.etter U-602196) t m-

. Attachment 4  !

to U-602303 {

' Page 2 of 6 Enclosure 2 to U-602196 {

Section 3.4 Page 102 of 211 RCS Leakage Detection Instrumentation 3.4.7 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.7 RCS Leakage Detection Instrumentation LCO 3.4.7 The following RCS leakage detection instrumentation shall be OPERABLE:

a. Drywell floor drain sump monitoring system; [and] (_

P4 ,

b. One channel of either drywell atmospheric part'culategor g atmospheric gaseous monitoring system;gand g; 1
c. Drywell air cooler condensate flow rate monitoring system ,

fk m om lw wf CySle n APPLICABILITY: H0 DES 1, 2, and 3.

i ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME i

A. Drywell floor drain ------------NOTE------------- '

sump monitoring system LCO 3.0.4 is not applicable.

inoperable. 4 A.1 Restore drywell floor 30 days drain sump monitoring system to OPERABLE status.

(continued)

D 1 rtse d 14

--BWR/OSTS--- 3.4-14 Rev. 0,. 09/diu

Attachment 4 to U-602303 LS-94-011 Page 3 of 6 INSERT 14 I

---NOTE-Operation may continue after July 10,1994, until the next entry into MODE 4, provided the drywell floor drain sump flow rate is monitored and determined by alternate means once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

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Attachment 4 .

to U-602303  :

Page 4 of 6

  • i Enclosure 2 to U-602196 section 3.4 Page 160 er211 D.CS Leakage Datection Instrumentation B 3.4.7 BASES APPLICABLE Therefore, these actions provide adequate response before a SAFETY ANALYSES significant break in the RCPB can occur.

(continued)

RCS leakage detection instrumentation satisfies Criterion 1 of the NRC Policy Statement.

Suh MlcT LCO The drywell floo'r drain sump monitoring system is required to quantify the unidentified LEAKAGE from the RCS. Thus.

g' for the system to be considered OPERABLE, h- thefflow monitoring c 1: __ ; '-~^' - " M % ; portion of the system must be OPERABLE. The other monitoring systems provide early alams to the operators so closer examination i

of other detection systems will be made to detemine the extent of any corrective action that may be required. With

{

the leakage detection systems inoperable, monitoring for LEAKAGE in the RCPB is degraded.

APPLICABILITY In MODES 1, 2, and 3, leakage detection systems are required to be OPERABLE to support LCO 3.4.5. This Applicability is consistent with that for LCO 3.4.5.

ACTIONS A... I With the drywell floor drain sump monitoring system  !

inoperable, no other fom of sampling can provide the equivalent infomation to quantify leakage. However, the l drywell atmospheric activity monitorMand the drywell air cooler condensate flow rate monitor will provide indications of changes in leakage.  ;

of With the drywell floor drain sump monitoring system cy W inoperable, but with RCS unidentified and total LEAKAGE ,

__being determined every hours (SR 3.4.5.1), operation may i 12 continue for 30 days. e 30 day Completion Time of ge s Required Action A.1 is acceptable, based on operating experience, considering the multiple foms of leakage Lag B33 detection that are still available.eRequired Action A.I'is l i j modified by a Note that states that the provisions of LCO 3.0.4 are not applicable. As a result, a MODE change is allowed when the drywell floor drain sump monitoring system l (continued) l -BWRffr$TS- B 3.4-33 Rev. 0,-00/2S/02-l

. 1 Attachment 4 to U-602303 LS-94-011 Page 5 of 6 INSERT B33 This Completion Time is modified by a Note that identifies that the 30 day Completion Time may be extended until the next plant shutdown to MODE 4 provided the drywell floor drain sump flow rate is monitored and determined by alternate means at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. Prior to plant restart from that shutdown, the V-notch sump inlet flow monitoring system must be restored to OPERABLE status.

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F. Attachment 4

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to U-602303 l Page 6 of 6 l Enclosure 2 to U-602196 Section 3.4 Page 204 of 211 DISCUSSION OF CHANGES TO NUREG-1434 TS 3.4.7 - RCS LEAKAGE DETECTION INSTRUMENTATION BRACKETED ADMINISTRATIVE CHOICE B.1 Brackets removed and optional wording preferences revised to i reflect appropriate plant specific requirements.

PTANT SPECIFIC DIFFERENCE P.1 The safety analysis report for this station is identified-as the Updated Safety Analysis Report and is correctly referred to as the USAR.

P.2 The Bases discussion is revised to reflect the choice of applicable bracketed information in the Action.

I P.3 Additional information is included in the references for ease of identification. This additional information may include the title, revision number and/or date.

P.4 The LCO and Bases are revised to be consistent with the plant specific design.

P.5 This comment number is not used for this station.  ;

P.6 The Bases description of ACTION A.1 includes the frequency of SR 3.4.5.1. The frequency is being revised to make it consistent with the change proposed in LCO 3.4.5 for this  ;

frequency.

P.7 The Completion Time is revised to make it consistent with the  !

current Technical Specifications.

P.8 The terminology is revised to make it consistent with the m

Eropoyed Jechnical Specificat.o i _ s m%>

y,9 C dWgl> rtbe 5C Lge9 pgt/10U6 frpfDSoCl IVI

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-vx leer d- soz. sos.

C.1 " Containment" changed to "drywell" for accuracy.

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CLINTON 10 10/1/93 I

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