ML20154D811

Requests Submittal of Schedule for Installation & Testing of Containment Atmospheric Dilution Sys within 60 Days,Per Rev 2 to Reg Guide 1.7

ML20154D811
Person / Time
Site:	Pilgrim
Issue date:	03/14/1978
From:	Ippolito T US ATOMIC ENERGY COMMISSION (AEC)
To:	Andognini G BOSTON EDISON CO.
Shared Package
ML20154D739	List: ML20154D737 ML20154D749 ML20154D775 ML20154D786 ML20154D799 ML20154D811 ML20154E181 ML20154E200 ML20154E235 ML20154E256 ML20195F929
References
FOIA-88-198, RTR-REGGD-01.007, RTR-REGGD-1.007 NUDOCS 8809160123
Download: ML20154D811 (2)

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• 84 UNITE D sTAf f s NUCLE AR RE GULATORY COMM13slON i

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M.p'.j .' m s m.s o f os. o. c. nes u

,,,# ifARCH 14 IST)

Oceket No. 50-293 1

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1 Mr. G. Carl Andognini Boston Edison Compar<y M/C NUCLEAR 800 Boylston Street Boston, Massachusetts 02199 .

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Dear Mr. Andognint:

Your letter of June 13. 1974 advised us that you had suspended work on ;

the Contaircent Atmospheric Otlution (FAD) System pending reviticn )

I to_ Regulatory Guide 1.7, Control of Combust 1 Die nas Concentrations in

! Containment following a t.oss-of-Coolant Accident. Your proposed CAD -

system was described in Amendrent h'o. 35 to the Pilgrim Nuclear Power Station (PtiPS) Unit ho.1 Final Safety Analysis Report (FSAR) s ubmitted on January 28.197L You indicated that the proposed CAD system would te reevaluated and codified as appropriate after issuance of the

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revisedRegulatory~ Guide (RGk(),))-

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Revision I to RG 1.7 was issued for cor. ment in September 1976. Revision 2 e l to R31.7 was issued in final status in November 1978.

l Section 4.1.2, "Containment Atnosphere Control" of the Final Sa fety 1

Evaluation Report _(SER) for Pligt im iluelear Power Station dated l

l August 25, 1971 in~dicated that the staff had conelvded that a hydrottn '

l control syste: should be provided at' PhP5 and that bac1 fitting the .

• _Ptigrim facility in this regard would provide substantial additional

• ProteGlon required for the public health and safetym The SER further pointed out that the design and installation of the system should be achieved in a reasonable period of time.

l l Accordingly. We request that you submit, within 60 days of your recelet t of this letter, your schedule for7he installation aM testino of a

'A0 system at PliPS, Also inciuce in your semittal, a detailed escription of any design changes made to the original FSAR submittal l as a refult of the revised requiayory guldance. l 9

880916012,3 800823 PDR FOIA PDR WHNSO*400-198 ,

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. G. Carl Andogninf -t-  :

i / Your cooperation with us is appreciated.

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r Sincerely. [

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hsA Thomas Ippoltto. Chief  !

l Operating Reactors Branch #3  !

Division of Operating Reactors a

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