ML20095J681

Application for Amends 148 & 132 to Licenses NPF-10 & NPF-15,respectively,reinstating Cris Setpoints Previously Proposed to Be Deleted from Specs in Original PCN-432

ML20095J681
Person / Time
Site:	San Onofre
Issue date:	12/22/1995
From:	Rosenblum R SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20095J680	List: ML20095J679 ML20095J681 ML20095J686
References
NUDOCS 9512270259
Download: ML20095J681 (8)

Text

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! UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION I Application of SOUTHERN CALIFORNIA Docket No. 50-362

)

EDISON COMPANY, H AL. for a Class 103 )

License to Acquire, Possess, and Use )

a Utilization Facility as Part of ) Amendment Application Unit No. 3 of the San Onofre Nuclear ) No. 132, Supplement 1 Generating Station )

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! SOUTHERN CALIFORNIA EDISON COMPANY, H AL. pursuant to 10 CFR 50.90, hereby submit Amendment Application No. 132, Supplement 1.

l This amendment application consists of a Supplement to Proposed Change Number 1 (PCN)-432 to Facility Operating License No. NPF-15. Supplement 1 to PCN-432 4

is a request to withdraw previous proposed changes, which were associated with the Control Room Isolation Signal (CRIS), to Unit 3 Technical Specification (TS) Table 3.3-4, " Engineered Safety Feature Actuation System Instrumentation Trip Values," and post PCN-299 (Technical Specification Improvement Program) specifications. The Supplement proposes to reinstate the CRIS setpoints to the values currently in the existing TSs and post PCN-299 specifications.

9512270259 DR 951222 ADOCK 05000361

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i l Amendment Application No. 132, Supplement 1 Subscribed on this J f M _ day of f)e,.q]gr , 1995.

Respectfully submitted, l

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SOUTHERN CALIFORNIA EDISON COMPANY SoestisL:nAwAN h i eusnamen m07 mar 2

J 8esamymass-copornio tmtOle 1 W cason,e,to*mCounty By: A

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Richard A. Rosenblum Vice President State of california  ;

County of San Diego )

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pe personally me to be the person Whosie name 1s~ subscribed 'to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument.

WITNESS my hand and off'cial seal.

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Application of SOUTHERN CALIFORNIA ) Docket No. 50-361 EDIS0N COMPANY, H R. for a Class 103 )

License to Acquire, Possess, and Use )

a Utilization Facility as Part of ) Amendment Application Unit No. 2 of the San Onofre Nuclear ) No. 148, Supplement 1 Generating Station )

SOUTHERN CALIFORNIA EDIS0N COMPANY, H R. pursuant to 10 CFR 50.90, hereby submit Amendment Application No. 148, Supplement 1.

This amendment application consists of a Supplement to Proposed Change Number (PCN)-432 to Facility Operating License No. NPF-10. Supplement I to PCN-432 is a request to withdraw previous proposed changes, which were associated with the Control Room Isolation Signal (CRIS), to Unit 2 Technical Specification (TS) Table 3.3-4, " Engineered Safety Feature Actuation System Instrumentation Trip Values," and post PCN-299 (Technical Specification Improvement Program) specifications. The Supplement proposes to reinstate the CRIS setpoints to the values currently in the existing TSs and post PCN-299 specifications.

Amendment Application No. 148, Supplement 1 Subscribed on this M / day of Befg/er , 1995

' l Respectfully submitted, l l

'^^^^^^^^^^^^

SOUTHERN CALIFORNIA EDISON COMPANY l i

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Mr Comm. Ep Oct 15.19W [ OY,* O

. -. - .. . .., Richard M. Rosenblum Vice President State of California County of San Diego i

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personally app' eared ~/2/ffr/e, #f for u J /v w , personally known to

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me to be the person whosd name i's subscribed to the within instrument and

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acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument.

WITNESS my h d and of cial seal Signatu M f,,yW

DESCRIPTION AND SAFETY ANALYSIS OF SUPPLENENT 1 TO PROPOSED CHANGE NPF-10/15-432 Supplement I to PCN-432 is a request to withdraw the original proposed changes, which were associated with the radiation monitor Control Room Isolation Signal (CRIS) setpoints, to Technical Specification (TS) Table 3.3-4, " Engineered Safety Feature Actuation System Instrumentation Trip Values,"

and post PCN-299 (Technical Specification Improvement Program) specifications.

Existina Specifications Unit 2: See Attachment "A" Unit 3: See Attachment "B" Proposed Specifications Unit 2: See Attachment "C" Unit 3: See Attachment "D" Technical Specification ImDrovement Proaram (TSIP) PCN-299 Existina Specifications Unit 2: See Attachment "E" Unit 3: See Attachment "F" Proposed Specifications Unit 2: See Attachment "G" Unit 3: See Attachment "H" DESCRIPTION Proposed changes to the existing Specifications (see Attachments C and D):

Table 3.3-4 ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP VALUES Under Functional Unit 9, Control Room Isolation (CRIS):

o In 9.c.ii, under Tri value of "53.8 x 10'pcpm."

Value reinstate the existing TS setpoint o In 9.c.ii, under Allowable Value reinstate the existing TS setpoint value of "s4.0 x 10 cpm."

2 f

1 1

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+ - - -

Under Table Notation for Table 3.3-4:

o Delete Note 7; replace with " Deleted."

Proposed Changes to the TSs post PCN-299 (see Attachments G and H):

TS 3.3.9 Control Room Isolation Sianal (CRIS)

Under SR 3.',.9.2:

o Reinstate the post PCN-299 specification high radiation setpoint value of "54E2 cpm above normal background."

DISCUSSION The Supplement proposes to reinstate the Control Room Isolation Signal (CRIS) i Surveillance Requirement (SR) setpoints which were previously proposed to be deleted from the specifications. These values are currently in the existing TSs and post PCN-299 (Technical Specification Improvement Program) specifications.

l This CRIS SR ensures the dosage that will be received by operators post-

accident are within regulatory limits. Properly maintaining control room j habitability is under the cor. trol of 10 CFR 50 Appendix A, General Design Criteria (GDC)19, rather than the TSs. However, the setpoint values in the

TSs provide added assurance that this criterion is being satisfied.

SAFETY ANALYSIS t The proposed change described above shall be deemed to involve a significant l' L hazards consideration if there is a positive finding in any one of the following areas: .

l 1. Will operation of the facility in accordance with this proposed change i involve a significant increase in the probability or consequences of an

accident previously evaluated?

Response: No The proposed Supplement will maintain the radiation monitor setpoints i

for the Control Room Isolation Signal (CRIS) in the Technical Specifications (TSs). These setpoints, which are currently in the existing Technical Specifications and post PCN-299 (Technical Specification Improvement Program) specifications, were previously proposed to be deleted from the specifications in the original submittal of PCN-432. The probability of an accident and the consequences of an

, accident are unaffected by this proposed Supplement since the Safety Analysis remains unaffected.

Therefore, operation of the facility in accordance with this change will not involve a significant increase in the probability or consequences of an accident previously evaluated.

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2. Will operation of the facility in accordance with this proposed change create the possibility of a new or different kind of accident from any accident previously evaluated?

Response: No The Supplement proposes to reinstate the control room radiation monitor setpoints for CRIS previously proposed to be deleted from the specifications in the original submittal of PCN-432. The modification does not influence the possibility of a new or different kind of accident evaluated because the setpoint values are currently in the existing TSs and post PCN-299 specifications.

Therefore, operation of the facility in accordance with this proposed change will not create the possibility of a new or different kind of accident from any accident previously evaluated.

3. Will operation of the facility in accordance with this proposed change involve a significant reduction in a margin of safety?

Response: No The margin of safety is preserved by this Supplement since the CRIS setpoints for the control room radiation monitors are being reinstated in the existing TSs and the post PCN-299 specifications. These setpoints were previously proposed to be deleted from the specifications and relocated to administrative control procedures in the original PCN-432 submittal.

Therefore, this proposed change will not involve a significant reduction in a margin of safety.

Safety and Sianificant Hazards Determination Based on the above Safety Analysis, it is concluded that: 1) the proposed change does not constitute a significant hazards consideration as defined by 10 CFR 50.92 and 2) there D. reasonable assurance that the health and safety of the public will not be endangered by the proposed change. Moreover, j because this action does not involve a significant hazards consideration, it I will also not result in a condition which significantly alters the impact of the station on the environment as described in the NRC Final Environmental Statement. I 3

ATTACHMENT "A" EXISTING SPECIFICATIONS UNIT 2