ML19206A498

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Responds to IE Bulletin 77-04 Re Design Performance of Sys for Controlling Ph of Containment Sump Water Following a Loca.Proper Ph Control Inherent in Sys Design
ML19206A498
Person / Time
Site: Crane Constellation icon.png
Issue date: 12/19/1977
From: Herbein J
Metropolitan Edison Co
To: Grier B
NRC Office of Inspection & Enforcement (IE Region I)
References
NUDOCS 7904200076
Download: ML19206A498 (1)


Text

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NETROPOLITAN EDISON COMPANY c.zse. - cas.srm r.ruc enungs ec ucw:cu /

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  • CST CFFICE 3CX $42 REAc!NG. PENNSYLVANIA 19603 TELEPwCNE 15 - 3:9 :601 December 19, 1977 GOL 1750 Mr. 3. H. Grier, Director U. S.

Tuelear Reg 21 story Cctrission Cffice Of Inscecticn L Inforcenent Regica !

631 Fa -k Avenue King of Prussia, Pennsylvania 19h06 Cear Sir:

'"hree Mile Island 37uelear Station Unit 2 (CC-2)

License :Ic. CPPR-66 Docket :Ic. 50-320 Respense to II Sulletin :ic. 77-Ch In respense to your letter dated :Teventer h,1977, and the actica requested in II 3ulletin 77-ch cencerning the design perferrance cf a system fer cen-

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3 crated ~4ater and Sodiu= Hyd exide Sclutien for '~~ a-A iodine re=cval as descrihed in Chapter cf the FSAR.

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2.e :iEC staff has reviewed the 'syste='s perfer:ance and has cencluded in Supple =ent 1 of the CC-2 SafetJ Ivaluatica.epern (Sectice 6.0, paragraph 6.2.3, page 6-1) that it can neet the design criteria vith a single active failure and is therefore acceptable.

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