ML20058F515

Requests Proposed Schedule for Submitting Program to Address Concerns Re Adequacy of Design Margins of Mark I Containment Sys Identified from Mark III Issues Raised by Former GE Employee

ML20058F515
Person / Time
Issue date:	07/15/1982
From:	Eisenhut D Office of Nuclear Reactor Regulation
To:	Logue R GENERAL ELECTRIC OPERATING PLANT OWNERS GROUP, PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
Shared Package
ML20058F511	List: ML20058F507 ML20058F515
References
NUDOCS 8207300543
Download: ML20058F515 (1)

Text

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UNITED STATES 8

NUCLEAR REGULATORY COMMISSION o

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WASHINGTON, D. C. 20555

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Mr. R. Logue, Chairman JUL 151982 Mark I Owners Group Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101

Subject:

Concerns Regarding the Adequacy of the Design Margins of the Mark I Containmerit System On May 8,1982 a number of concerns regarding the adequacy of the General Electric (GE) Mark III containment design were raised by a fomer GE employee. After these concerns came to the attention of the staff on May 12,1982, a series of telephone conference calls and meetings involving this fomer GE employee, the NRC, GE, and the Mark III plant owners occurred.

These concerns were initially directed towards the Mark III containment-design. However, the staff, has since detemined that some of the issues may apply to the Mark I containment design.

The enclosure to this letter contains a list of issues based on the Mark III containment concerns that were identified as of June 21, 1982. Those items that are clearly not associated with the Mark I containment design have been eliminated.

In some instances the original concern has been modified to make it more applicable to the Mark I containments and to generalize the concerns.

There is no direct evidence to substantiate the applicability of these con-cerns to the Mark I containments. However, to assure there are no signifi-cant safety implications to the Mark I containment design we request that the Mark I Owners Group respond within fourteen (14) days of receipt of this letter wi.th your proposed schedule for submitting a program to address those concerns which we have-. identified as being potentially applicable to the Mark I containment.

If you have any questions on this-matter, please contact Byron Siegel (301-492-7534) the assigned Project Manager for operating Mark I facilities.

Since this request for infomation affects fewer than 10 respondents, OMB l

clearance is not required under P.L.96-511.

Sincerely, arre G.

is n t i ector 8207300543 820721

[DRTOPRPEMVGE Division of Licensir'ig g

Office of Nuclear Reactor Regulatio'n

Enclosure:

As Stated cc w/ enclosure; Service Lists

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