PLA-6627, Supplemental Response to Generic Letter 2008-01, Managing Gas Accumulation in Emergency Core Cooling Decay Heat Removal and Containment Spray Systems.

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Supplemental Response to Generic Letter 2008-01, Managing Gas Accumulation in Emergency Core Cooling Decay Heat Removal and Containment Spray Systems.
ML101970097
Person / Time
Site: Susquehanna Talen Energy icon.png
Issue date: 07/14/2010
From: Rausch T
Susquehanna
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
GL-08-001, PLA-6627
Download: ML101970097 (2)
v • d • e


Text

Tinrethy S. Rauscch PPL Suaqucahanna, LLC Sr. Vice President & Chief Nuclear Officer 769 Salem Boulevard Bewick, PA 18603 Tel. 570.542.3445 Fax 570.542.1554 JuL 1 4 2010 U. S. Nuclear Regulatoy Commission Attn: Document Control Desk FAail Stop OP1-17 Washington, DC 20555 SUSQUEHANYA STEAM ELECTRIC STATION UNIT I SUPPLEMENTAL RESPONSE 170 GENERIC LETTER 2008-07 "MASAGING GAS ACCUkIULATION IK IG-VERGENCY GORE COOLING, DECAY HEAT REMO't'AL, AND GOPU'TAINRIEKTSPRAY SYSTEMS" PLA-6627 Docket No. 50-387 R~fGre~~ces: I j ;VRC Gerreric Letter 21108-01, v van aging Gus Accumul-ltion in Emergenq Cor-e Conlirrg, Decay FIeat RemovczE, urzd Contctirzmenr Sprgy Sy~ctems,"

dated J-lnmuy I I , 2flOX.

2') PLd4-6367, 4fr B T it.lckinney (PPL) fo Docun?er?fCo~ztrofDesk iLrSIYRC),

"Tizrer-itli~nfl?fle.tj?on,e to AZC Generlc Leffer2008-Of, " dated ,%fir)*27, 2008

-3) PLn-6439, Mr. R. T. i%fcklinrze~> iPPLj tri Document Control Desk iL:SIVRC),

'"?Yiue-~Wonrh Response to !YRC Generic Letter 2008-01, dated Octohev 14, 2008.

The Nuclear R s g u l a t o ~Commission (NRC) issued Generic Letter (CL) 2008-01 (Ri=fc"sneeI ) to request that each licensee evaluate the Ilcensing basts, design, test~ng.

and coneckn e actron programs for the Emergency Core Cooling Systems (ECCS), Decay Heat Ren~ovalsysterr~,and Containment Spray system, to ensure that gas accurnuiation :s rnanta~nedless than the amourat that challenges sperabllity of these systems, and that appropriate action i c taken \%kenc o n d ~ t ~ radverse is to quaiita, are rdent~fied Thns supplemental rcsponse documents eisrnpletron of the followrng regulatory cornmatrnents, made bg PPL Sessqsrehan~ra,LLC (PPL), sn Reference 2:

  • Cornpic$(;.the ~ a l k d o t u n of s U ~ I 1Panaccessible prplng secttons sfGL 2008-01

-ubject systems PCBBTto startup from the Spnng 2010 Refuehx-rg Outage, and a Comp%etcevaluat~onss f the $4L 2008-01 subject syshcms usrng results sfthe;:

vralkdowns o f Unrt 1 rnaceessrhle prptng sectrsns and submit a suppicmental response to the NRC documentrng completrot~o f the Unat % awiikdorans and any

~nrpactilpoo.,the GE 2008-01 rime - n-ronrh response as a resuit o f the cermpieted e\ iidlkaateon., \.v nthm 90 &ays f04911c)is "in,. startup from the Sprmg 2-10I 41 Refuct rng Outage

Docurnent Control Desk PLA-6627 The walkdowns of SSES Unit i inaccessible piping sections were completed during the Spring 20 t 0 refueling outage. Evaluations of the GL 2008-01 subject systems have been completed using the results of the inaccessible Unit I piping section walkdotms. The impact to the CL 2008-01 nine-month response (Reference 3) has been assessed and the conclusion that the SSES systemsifunctions comply with the current licensing basis.

design basis, and applicable regulatory requirements is unchanged, Suitable design and procedural control measures exist for each of these subject systems to maintain this compliance.

There are no new or revised regulatory commitments contained herein.

Any questions regarding this GL response should be directed to Mr. D. L. Filchner at (6 10) 774-78 19.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on:

Copy: NRG Region I Mr. P. W. Finney, NRC Sr. Resident Inspector Mr. E3, K, Vaidya, NRG Project Manager Mr. R.R, Sa~~ati, DEPIBRP

Text

Tinrethy S. Rauscch PPL Suaqucahanna, LLC Sr. Vice President & Chief Nuclear Officer 769 Salem Boulevard Bewick, PA 18603 Tel. 570.542.3445 Fax 570.542.1554 JuL 1 4 2010 U. S. Nuclear Regulatoy Commission Attn: Document Control Desk FAail Stop OP1-17 Washington, DC 20555 SUSQUEHANYA STEAM ELECTRIC STATION UNIT I SUPPLEMENTAL RESPONSE 170 GENERIC LETTER 2008-07 "MASAGING GAS ACCUkIULATION IK IG-VERGENCY GORE COOLING, DECAY HEAT REMO't'AL, AND GOPU'TAINRIEKTSPRAY SYSTEMS" PLA-6627 Docket No. 50-387 R~fGre~~ces: I j ;VRC Gerreric Letter 21108-01, v van aging Gus Accumul-ltion in Emergenq Cor-e Conlirrg, Decay FIeat RemovczE, urzd Contctirzmenr Sprgy Sy~ctems,"

dated J-lnmuy I I , 2flOX.

2') PLd4-6367, 4fr B T it.lckinney (PPL) fo Docun?er?fCo~ztrofDesk iLrSIYRC),

"Tizrer-itli~nfl?fle.tj?on,e to AZC Generlc Leffer2008-Of, " dated ,%fir)*27, 2008

-3) PLn-6439, Mr. R. T. i%fcklinrze~> iPPLj tri Document Control Desk iL:SIVRC),

'"?Yiue-~Wonrh Response to !YRC Generic Letter 2008-01, dated Octohev 14, 2008.

The Nuclear R s g u l a t o ~Commission (NRC) issued Generic Letter (CL) 2008-01 (Ri=fc"sneeI ) to request that each licensee evaluate the Ilcensing basts, design, test~ng.

and coneckn e actron programs for the Emergency Core Cooling Systems (ECCS), Decay Heat Ren~ovalsysterr~,and Containment Spray system, to ensure that gas accurnuiation :s rnanta~nedless than the amourat that challenges sperabllity of these systems, and that appropriate action i c taken \%kenc o n d ~ t ~ radverse is to quaiita, are rdent~fied Thns supplemental rcsponse documents eisrnpletron of the followrng regulatory cornmatrnents, made bg PPL Sessqsrehan~ra,LLC (PPL), sn Reference 2:

  • Cornpic$(;.the ~ a l k d o t u n of s U ~ I 1Panaccessible prplng secttons sfGL 2008-01

-ubject systems PCBBTto startup from the Spnng 2010 Refuehx-rg Outage, and a Comp%etcevaluat~onss f the $4L 2008-01 subject syshcms usrng results sfthe;:

vralkdowns o f Unrt 1 rnaceessrhle prptng sectrsns and submit a suppicmental response to the NRC documentrng completrot~o f the Unat % awiikdorans and any

~nrpactilpoo.,the GE 2008-01 rime - n-ronrh response as a resuit o f the cermpieted e\ iidlkaateon., \.v nthm 90 &ays f04911c)is "in,. startup from the Sprmg 2-10I 41 Refuct rng Outage

Docurnent Control Desk PLA-6627 The walkdowns of SSES Unit i inaccessible piping sections were completed during the Spring 20 t 0 refueling outage. Evaluations of the GL 2008-01 subject systems have been completed using the results of the inaccessible Unit I piping section walkdotms. The impact to the CL 2008-01 nine-month response (Reference 3) has been assessed and the conclusion that the SSES systemsifunctions comply with the current licensing basis.

design basis, and applicable regulatory requirements is unchanged, Suitable design and procedural control measures exist for each of these subject systems to maintain this compliance.

There are no new or revised regulatory commitments contained herein.

Any questions regarding this GL response should be directed to Mr. D. L. Filchner at (6 10) 774-78 19.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on:

Copy: NRG Region I Mr. P. W. Finney, NRC Sr. Resident Inspector Mr. E3, K, Vaidya, NRG Project Manager Mr. R.R, Sa~~ati, DEPIBRP

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