ML19259C162

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Notifies That Current Plans Do Not Call for Installation of Containment Atmospheric Control Sys.Plans to Submit Summary Description of Proposed Sys & Proposed Schedule of Implementation by 790915
ML19259C162
Person / Time
Site: Pilgrim
Issue date: 06/06/1979
From: Andognini G
BOSTON EDISON CO.
To: Ippolito T
Office of Nuclear Reactor Regulation
References
79-144, NUDOCS 7906120434
Download: ML19259C162 (1)


Text

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BOSTON EDISON COMPANY GENERAL OFFICES Soo BOYLSTON STREET G O STON. M AS E AC H U E ETTs o 219 9

a. cA=L AnoGauia, MANAGER June 6, 1979 l

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BECo. Ltr. #79-114 Mr. Thomas A. Ippolito, Chief Operating Reactors Branch #3 Division of Operating Reactors Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D. C. 20555 License No. DPR-35 Docket No. 50-293 Containment Atmospheric Control System Ref: (a) NRC Letter T. A. Ippolito to G. C. Andognini dated 3/14/79

Dear Sir:

In Reference (a), you requested that we submit a schedule for installation and testing of a CAD System at Pilgrim Station, Unit #1. You also re-quested that we include a detailed description of design changes made to the original FSAR submittal as a result of the revised regulatory guidance.

Our current plans do not cali,for' the installation of a CAD System. We intend to retain the present ,inerted containment atmosphere requirements, and we are evaluating a systein that incorporates d hydrogen recombination capability. This substan'tially upgraded system conceptual design has resulted from your revised regulatory guidance and our continuing intent to assure protection of the public health and safety.

Because of the extensive design changes resulting from the revised regulatory guidance, we are unable to' commit at this time to any detailed design change.

We will submit a summary description of our proposed system and our proposed schedule of implementation by September 15, 1979.

If you have any questions on this subject, please feel free to contact us at your convenience.

Very truly yours,

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