ML18025A297

Letter Responding to Letters Dated April 17, 1975 and April 23, 1975 and Informing the NRC That a Schedule and Program for Resolution of This Matter Is Being Developed in Conjunction with Other Utilities Owning Mark II ...

ML18025A297
Person / Time
Site:	Susquehanna
Issue date:	05/08/1975
From:	Curtis N W Pennsylvania Power & Light Co
To:	Butler W R Office of Nuclear Reactor Regulation
References
840-2, ER 100450, PLA-66
Download: ML18025A297 (3)

Text

NIIC.DIB1 RIBUTION iOR PART.">0 DOCK ET~iriATER A L (TEI(rIPORARY FORfvl)0 CONTROL NO: Wi~+V FILE.F RONt.i'ennsylvania Power&Light Allentown, Pa.Co.Norman W, Curtis TO: Dr, Halter R.Butler DATE OF DOC 5-8-75 ORIG 1 Signed DATE REC'D 5 12rr75 CC OTHER LTR TWX RPT XX'ENT AEC PDR SENT I.OCAL PDR OTHER CLASS UNC LASS XXX PROP INFO INPUT DESCR IPTION: Ltr, advising will provide schedule for subm.req.containment design inf, 6 Eval.by the we of 6 2 75o~~~o~NO CYS REC'D 1 ENCLOSURES:

DOCKET NO 5 387 388 PLANT NAIVjE.S.h 1 6 2 FOR ACTION/INFORI",]ATION VCR 5-14-75 BUTLER (L)copies CLARK (L)W/Copies PAIRR (Li Y(t/i oples r'Ni t='L (LI W/Copies SON(VENDER (L(ZIE((ANN (L(W/Copies'/Copies STOLZ (L)DICKER (E)W/Copies W/Copies'II/hC<hi i A ii 1 vair.u-mr.i ics Wi Copies Wl Copies I'UHPLB (L)YOUNGBLOOD W/Copies W/Copies REGAN (E)W/Copies LEAR (L), W/Cooies Egi'rg E W/Copies (E)LICE~<SING PROJECT Yr~lAGER W/Copies'-GFI N R+OGC, ROOM P-506A" GOSSICK/STAF F CASE GIAMBUSSO.BOYD f~(MOORE (L)DEYOUNG (L)SKOVIIOLT (L)GOLLER!L)(Ltr)i".COLLINS DENISE q fiI:.G OPR~I=ILE 5 REGION (E)1IP7.C STEE LE I EC}I AFVIEW SCHROEOER MACCARY KNIGHT oAW LI CKI SHAO STELI.O HOUSTON NOVAK ROSS IPPOLI1 0 TEDESCO J.C01.LlNS I AINAS BENAROYA VOL Lfv1E R A/T I'D.BRA IT((1A: I SALTZ'iAN ME LTZ LIC ASST DIGGS (L)GEARIN (L)GOUI BOURNE{L)KREUTZER (E)LEE (L)MAIG RET (L)REEO (E)-SERVICE (L)SHEPPARD (L)SLATER (E)S(LI I TH (L)TEETS (L)WI LLIAiViS (E)WILSON (L)INGRAM (L)DENTON G R I f(tl ES R.GAfvlM I L L H.KAST NE R E.BALLAR D P.SPANG LE R J.~M.ENVI RO r~S.MULLE R I'r1.DICK LR S.KiNI G HTON f~/i.YOUNG B LOOD H.BEGAN S.PROJECT LDR G.V.HAR LESS R.PLANS~MCDOi~lA' CHAPi~.1AN DUDE (L;r)E.COUPE PETERSON HARTFI"" LD (2)KLECKER EISEN HUT Wl G G I N TON INTERiiAL DISTR II3UTION EXTERNAL DIST IBUTION-NATIONAL LABS-W.PENNINGTON, Rrn E-201 GT-CON SU LTAI'II TS NE1ViVi A fk K/0 LUM E/AG BA 8 I AN'~I-LOCAL PORE~1-TIC (ABERNATISY)

('1)(2)(10) 1-NSIC (BUCfIAivAN) 1-ASLO 1.1-Newton Anderson.-ACRS HOLDING/SENT 1-PD R.SAN/LA/NY 1-BROQKHAVEN:'l.'

LAB 1-G.ULRIKSON, O 1-AGMED (RUTr!Cv'S-" Ai')Rrri B-127 GT 1-J.D.RUI'ANKLES, Rrn E 201 GT PP@IL TWO NORTH NINTH STREET, ALLENTOWN, PA.18101 PHONEs t215)821-5151 May 8, 1975 Docket Nos.50-387 5O-388 Dr.Walter R.Butler, Chief Light Water Reactors Branch 1-2 Division of Reactor Licensing U.S.Nuclear Regulatory Commission Washington, D.C.20555 SUSQUEHANNA SES ADDITIONAL INFORMATION

-CONTAINMENT DESIGN ER loo45O FILE 840-2 PLA-66 y 1 t.~s/s C

Dear Dr.Butler:

You have recently transmitted.

two (2)letters to us requesting additional information relative to the design of Mark II containments to account for suppression pool, hydrodynamic loads that occur during loss of coolant accidents (letter dated April 17, 1975)and safety/relief valve discharge events (letter dated April 23, 1975).In response to these letters, we(will provide you with our schedule for submitting the requested.

containment design information and.evaluations by the week of June 2, 1975)This schedule and a program for resolution of this matter is'being developed in conjunction with other utilities owning Mark II containments and.the General Electric Company.As discussed.

with Mr.J.M.Cutchin, the schedule for our response to Item 1 of your March 14, 1975 letter (regarding the design of wetwell to drywell vacuum breakers)will be included with the schedules mentioned above.V ry tr y yours, Norman W.Curtis Vice President-Engineering 8 Construction CTC:JMR PENNSYLVANIA POWER 8 L I GH T COMPANY y ry k h'I C k~k~y<<'Clf C r"I~~'h r , Cf r r~I h~F~V~.~yy Cr r~Lh~'~'~r~r