ML20214P050

Application for Amend to License NPF-47,adding Suppression Pool Pumpback Sys to Tech Spec 3.5.3 to Ensure Consideration as Required Equipment for Suppression Pool Operability.Fee Paid

ML20214P050
Person / Time
Site:	River Bend
Issue date:	08/29/1986
From:	Deddens J GULF STATES UTILITIES CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20214P052	List: ML20214P073 RBG-24285, Application for Amend to License NPF-47,adding Suppression Pool Pumpback Sys to Tech Spec 3.5.3 to Ensure Consideration as Required Equipment for Suppression Pool Operability.Fee Paid
References
RBG-24285, NUDOCS 8609170242
Download: ML20214P050 (5)

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GULF STATES UTILITIES COMPANY RIVER BEND STATION POST OmCE 80X 220 ST, FRANCISVILLE. LOUISIANA 70775 ARE A CODE 504 635 6094 346 8651 August 29, 1986 RBG- 24285 File No. G9.5 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Denton:

River Bend Station - Unit 1 Docket No. 50-458 Gulf States Utilities (GSU) hereby files an application for an amendment to the River Bend Station Unit 1 Technical Specifications, Appendix A to Facility Operating License NPF-47, pursuant to 10CFR50.90. Enclosure 1 contains the inforraation for Staff review of this request. Enclosure 2 provides the requested revisions to the River Bend Station Technical Specifications.

Pursuant to 10CFR170.12, GSU has enclosed a check in the amount of one-hundred and fifty dollars ($150. 00) for the license amendment application fee. Pursuant to 10CFR50.91 (b) (1), the State of Louisiana, Department of Environmental Quality - Nuclear Energy Division has been notified of this amendment request.

Additionally the Regional Administrator of Region IV and the Senior Resident Inspector have been provided copies of this l application. Your prompt attention to this application is appreciated.

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i S cerely, J.C. Deddens Vice President River Bend Nuclear Group l Enclosures L t24. 3P JCD/JEB/ERGYJEP/je l

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMISSION' STATE OF LOUISIANA )

PARISH OF WEST FELICIANA )

In the Matter of ) Docket No. 50-458 50-450 GULF STATES UTILITIES COMPANY )

(RiverBend-Station, Unit 1)

AFFIDAVIT J. C. Deddens, being duly sworn, states that he is a Vice President of Gulf States Utilities Company; that he is authorized on the part of said company to sign and file with the Nuclear Regulatory Commission the documents attached hereto; and that all such documents are true and correct to the best of his knowledge, information and belief.

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J.#IDeddens C

Subscribed and sworn to before me, a Notar Pub ic in andfortheStateandParishabovenamed,this$yN May of NUG L(Sh ,19b.

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ltttt d W ytJanW.Middlebr'ooks

[fotaryPublicinandfor West Feliciana Parish, Louisiana My Commission is for Life.

BIOCLOSURE 1

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I. PROPOSED REVISION Technical Specification 3.5.3, Suppression Pool, p

establishes the Limiting Conditions for O'eration for operability lo f . the suppression. pool. This- change request adds the Suppression. Pool Pumpback System (SPPS) to Technical Specification 3.5.3 to ensure it. is considere:d as required equipment for suppression pool operability.

II. JUSTIFICATION' The Suppression Pool Pumpback System (SPPS) is' designed to assist in the identification and control of post-LOCA.

leakage from ECCS piping in the auxiliary building cre' scent area at el 70 ft 0 inches. The SPPS maintains suppression pool. ' inventory while leak detection and isolation efforts are in progress. The SPPS also protects ECCS electrical components in this area from

. flooding from any other source of leakage following a LOCA. During the~ development of the Technical-Specifications for the full power license, GSU committed in a letter- dated November 18, 1985 (RBG-22622) to include the SPPS as part of the River Bend Technical Specifications to clarify that SPPS is a necessary subsystem to ensure operability of.the suppression pool.

The NRC staff requested that we include . limiting conditions for operation, surveillance requirements, and bases. The application for amendment is to satisfy the GSU commitment to include the SPPS as part of the River Ben 4 Technical Specifications.

, III. SIGNIFICANT HAZARDS CONSIDERATIONS 1

1 A. The proposed change does not include a significant increase in. the probability or consequences of an accident previously evaluated because the change only clarifies' the intent that the SPPS is a L necessary subsystem to ensure operability of the suppression pool where as these relationships were previously considered required subsystems. This l

i change does not involve a design change or physical change to the plant.

l Thus, there is no increase in the probability or consequences of any accident previously evaluated.

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B. The. proposed change does not create the possibility of a new or different kind of accident from any accident previously. evaluated because this change only provides explicit clarity that the SPPS is an integral part of suppression pool operability.

This change does not involve a design change or physical change with respect to new or modified equipment, or does it involve a change in the mode of operating existing equipment. _ Thus, no new accident scenario is introduced by this clarification of requirements for suppression pool operability.

C. The. proposed change does not involve a significant reduction in the' margin of safety because this clarification of requirements for suppression pool operability significantly reduces the possibility of not considering SPPS as part of suppression pool operability, which would enhance safety rather than reduce the margin of safety.

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ENCLOSURE 2 PROPOSED REVISED RIVER BEND TECHNICAL SPECIFICATIONS l

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