ML20237L732

Provides Info in Response to Requests Made During 870811 Insp of Plant Hydrogen Water Chemistry Installation. Hydrogen Water Chemistry Mini Test Final Rept, & Criteria for Prevention & Detection of Hydrogen Leaks Encl

ML20237L732
Person / Time
Site:	Peach Bottom
Issue date:	08/24/1987
From:	Gallagher J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Butler W NRC, NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM), Office of Nuclear Reactor Regulation
Shared Package
ML20237L734	List: ML20237L732 ML20238D865 ML20238D885 ML20238D890 ML20266J724 ML20266J726
References
NUDOCS 8708280227
Download: ML20237L732 (2)

Text

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i l ' PHILADELPHIA ELECTRIC COM PANY l 2301 MARKET STREET

.P.O. BOX 8699 PHILADELPHIA A. PA,10101 (215) 841 5o01.

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August 2L, i 1987-Docket Nos. 50-277 50-278

' lir.J W. ' R;:.5 Butt'r,;

e Director 3 Project Directorate 1 -2'

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Division of Reactor Projects'1/11 Attentlon: Docunent Control Desk U.S. Nuclear Regulatory Conmission Washington, DC 20555

Subject:

Peach Bottcm Atomic Power Station, Units 2 & 3 Permanent Hydrogen Water Chemistry Installation

References:

1) Letter, E. J. Bradley (PECo) to H. R. Denton (USNRC),

dated February 12, 1987

2) Letter, J. W. Gallagher (PECo) to W. R. Butler (USNRC),

dated May 27, 1987

3) " Guidelines for Permanent BWR Hydrogen Water Chemistry Installations", EPRI, 1987 Revision

Dear Mr. Butler:

An inspection of the Pe r b Bottom Hydrogen Water Chemistry (HWC) installation was performed by the NRC on August 11, 1987. This letter provides information in response to requests made during the inspection.

The inspection covered the HWC system, which is still under construction, including the hydrogen and oxygen storage system sites, the injection system control station, the system control panels, and the chemistry and materials monitoring instrumentation. During discussions, the NRC representatives requested detailed information on the system design. This information is q enclosed (Enclosure 1), consisting of PSID M-336, Sheets 1 and 2; Hydrogen  !

Detection Shrouds, Sketch No. SK-39775-P1, Sheets 1-9; and.the PBAPS HWC Mini-Test Final Report.

Prior to the system inspection, a discussion was held concerning the status of the NRC review of the Peach Bottom Technical Specification amendment request for a Main Steam Line Radiation Monitor (MSLRM) setpoint change (reference 1). The NRC requested additional information concerning the station's ability to detect and respond to fuel failures which were less than the revised trip setpoint. The question, and our complete response, is included as Enclosure 2. q m O V ) D g R 8 6 9 D[. k N

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+ ,V Discussion at the site also indicated that the NRC is expecting to issue an SER for Peach Bottom which would address the complete system Installation. Philadelphia Electric's submittals for HWC to date have addressed only the MSLRM Setpoint Change (reference 1) which is a Technical Specification change, and the storage of hydrogen and oxygen (reference 2). As requested during the inspection, we are transmitting herewith for your information our 10CFR50.59 evaluation for the hydrogen / oxygen injection systems along with a review of our system's design conformance to the EPRI "Guldelines for Permanent HWC Installations" (Enclosure 3). The NRC has recently accepted the Guidelines (reference 3) ,

for use in HWC 1icensing. As detailed in our Enclosure 3, our design is in conformance with the Guidelines.

Should you have any questions or require additional Information, please do not hesitate to contact us.

Very truly yours, CMC /cmv/08128706Y Enclosures Copy to: T. P. Johnson, Senior Resident Site Inspector, w/o enclosures i

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