ML20056C718
| ML20056C718 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 07/14/1993 |
| From: | NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | |
| Shared Package | |
| ML20056C716 | List: |
| References | |
| NUDOCS 9307220154 | |
| Download: ML20056C718 (6) | |
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UNITED STATES i NUCLEAR REGULATORY COMMISSION a ._at: ..;c o- ,.
SAFETY EVALUATION BY THE OFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDS RELATED TO AMENDMENT NO. 10 TO FACILITY LICENSE NO. NFP-82 SHOREHAM NUCLEAR POWER STATION. UNIT 1 (SNPS_).
DOCKET NO. 50-322
1.0 INTRODUCTION
By letter dated December 14, 1992, the licensee, Long Island Power Authority (LIFA) requested an amendment to facility license No. NFP-82 for its SNPS. . The-amendment would modify the Defueled Technical Specifications (DTS) by deleting the requirement that the Radioactive Effluent Release Report be submitted on a semi-annual basis and adds the requirement that the Radioactive Effluent Release Report be submitted annually, in accordance with 10 CFR 50.36a. In addition, the amendment eliminates the requirements for Alternating Current (A.C.)' Sources and Onsite Power Distribution Systems from the DTS.
The SNPS license was amended on July 19, 1991, to authorize possession only, but not operation of the reactor located at Wading River, New York. The SNPS has.
been shut down since February 28, 1989, and only operated intermittently at low-power levels during the period July 1985 and June 1987. At the time of the plant's final shutdown, in June 1987, the average fuel burnup was calculated to.
be approximately two effective full-power days. Fuel removal from the reactor was completed in August 1989. The Order Authorizing Decommissioning was 1.ssued June 11, 1992.
2.0 EVALUATION The . licensee has requested that the Radioactive Effluent Release Report be submitted annually, in accordance with the revised requirement of 10 CFR-50.36a.
- The reason for the requested change is that 10 CFR 50.36a has been revised, and now requires that a Radioactive Effluent Release Report be submitted annually.
Previously,10 CFR 50.36a required a semi-annual submittal. The staff finds the submittal of an canual report consistent with the current regulations.
The amendment also deletes the requirements for A.C. Sources and Onsite Power Distribution Systems from the DTS. . Normal ~ A.C. power is provided to the plant through the utility grid system, 138KV and 69KV circuits. The licensee is i proposing to delete from the DTS the requirements for maintaining-the diesel generators operable. Removing these requirements from the DTS will eliminate the onsite source of backup A.C. power if the normal power is interrupted. The impact of the loss of the availability of operable A.C. power sources and 9307220154 930714 PDR is W
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2 onsite power distribution systems is minimal. The loss of onsite electrical power at Shoreham would not adversely affect the operation of any safety related systems or components.
All the accident scenerios related to the loss of A.C. power were previously-analyzed in the approved Defueled Safety Analysis Report (DSAR) and the approved Decommissioning Plan (DP). One of the principal reasons that the consequence of i the loss of A.C. power is insignificant in offsite-dose consequences is that active fuel cooling is not required because the decay heat is low. Because the decay heat is low, the evaporation rate is slow and ample time exists to restore ,
A.C. power to normal spent fuel pool (SFP) makeup sources.. The accident ,
scenarios previously analyzed in the DTS and the DP are summarized below. ;
The DSAR, Section 15.1.19, examined the loss of A.C. power and its impact on SFP cooling. Because of the low heat rate (200 watts, DSAR, Figure 15.1-1), the loss of normal cooling and makeup systems will only result in a very slow evaporation rate of the SFP water. The evaporation rate is approximately 0.6 gpm or one foot every 11 days. It would require approximately 264 days for the SFP water level to reach the top of the fuel. Therefore, ample . time exists to restore normal makeup sources to restore the SFP level, DASR Appendix 9B, page 9-19.
The fuel handling accident was also analyzed in the DSAR, Section 15.1.36. The ,
accident is assumed to occur as a consequence of a failure of the fuel assembly lifting mechanisms. The fuel assembly mechanisms are pneumatically operated, fail-safe, and do not depend on A.C. power to hold the bundle. Thus, a loss of -!
A.C. power will not increase the probability of this accident.
The DP, Section 3.4.1, analyzed 10 accident scenarios. If any one of the 10 l accidents analyzed is followed by a loss of A.C. power, the consequence would not be increased because A.C. power is not required to mitigate the consequences of these accidents. Even for the two accidents that involve fires, the fire main would be supplied by the diesel fire pump, and the loss of A.C. power would not prevent the Fire Brigade from extinguishing the fires. Regarding the loss of l' A.C. power, while decommissioning activities are in progress, the work would be forced to stop. l To summarize, the accident scenarios previously analyzed in either the DTS or the DP, did not require A.C. power to mitigate the accident, and the offsite doses resulting from these accidents were insignificant. The staff, based on the ,
previously analyzed accidents, is approving the deletion of the requirements for A.C. Sources and Onsite Power Distribution Systems from the DTS. ;
3.0 ENVIRONMENTAL CONSIDERATION
S The amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(10), and 10 CFR 51.22(c)(11). Pursuant to 10 CFR 51.22(b),_ '
no environmental impact statement or environmental assessment need be prepared i in connection with the issuance of this amendment.
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4.0 . AGENCIES AND PERSONS CONSULTED In accordance with the Commission's regulations,.the New York State Official was notified of the proposed issuance of the amendment. The State Official had no c omments on the proposed amendment, i
5.0 CONCLUSION
The Commission has concluded, based on the considerationsEabove, that.
(1).because the license amendment did not involve an increase in the probability or consequences of accidents previously evaluated,~ or create the possibility of-
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a new or different kind of accident from any accident previously ev'aluated, and does not result in a significant . reduction in a margin. of safety, the amendment.' ,
, does not involve a significant hazard analysis; (2) there is reasonable assurance; ,
that the health and safety of the public will not be endangered by operation in '
the proposed manner; (3) such activities will be conducted.in compliance with the Commission's regulations; and (4) the issuance of the amendment will not. be :
inimical to the common defense and . security, or to the health and Lsafety'of the-public.
Principal Contributor: Clayton L. Pittiglio, Jr.
Date: July 14,1993 1
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Path & File Name:S:\llwmtype\cecilia\snppamen.clp 0FFICIAL- RECORD COPY. -
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.. In small- Box: on "DATE:" line enter:- M = E-Mail Distribution Copy H = Hard Copy.
PDR1: YES V- NO Category: Proprietary or CF Only ACNW: YES NO _)L Delete file after distribution Yes X No -'
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4.0 ' AGENCIES AND PERSONS CONSULTED In accordance with the Comission's regulations, the New York State Official was '
notified of the proposed issuance of the amendment. The State Official had no coments on the proposed amendment.
5.0 CONCLUSION
The Comission has' concluded, based on the considergions above, that:
(1) because the license amendment did not involve -- ' n - J increase in the probability or consequences of accidents previousV evaluated, or create the '
possibility of a new or different kind of accident from any ' accident previously evaluated, and does not result in a significant reduction in a margin of safety, the amendment does not _inv~olve a significant hazard analysis; (2) there is ,
reasonable assurance that th's health and safety of the public will not be >
endangered by operation in the\ proposed manner; (3) such activities will be ,
conducted in compliance with the Comission's regulations; and (4) the issuance of the amendment will not be inimical to the comon defense and security, or to the health and safety of the public. \,
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Principal Contributor: Clayton L. Pittigilo, Jr.
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TAC fL50286 DISTRIBUTION: Central File NMSS r/f LLWM r/f RBangart WBrach l J5urmeier PLohaus HWeber 'TCJohnson JKinneman, RI OC/LfMB NMSS:EKraus/TechEd Mirk'$ sal 1 ~ Boxes in Concurrence. Block to Define Distribution Copy Preference. .
In small Box on '0FC:' line enter: C = Cover E = Cover & Enclosure N = No copy 0FC LLOO E LLDR l- LLDR ? OGC Ofdr LLDR
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T.. , Requeer / Vol % No.109 / Wednesday, lume 9,1993 / Notices '3228.3 Long Idand Pawer Authorsty, Docket "Run"(o Tables 3.6.2f and 3.52h, and wdl not mvoin a sigrrihm enducason in a '
No. 50-322. Shcrnrbann Nuclear Pewar delete footostes and table rMetians snarg Statron. Unat I (SNPSL, Wadang Rwer, refernay to the completed Hydgen A, a the propowd esendmen .
Arw Iart Water Chemtstry Jess 2bihty test. U2e there will tse no chaages so the pnvs. cal -
dem M 6e planW ma*p M M *s I Date of appbcation for amendmed. ProPO5,ed changes are purely e*fected by this change The mitial Arner.dment No.10 Decaatbar 2 4.1992 adrnmtstrathie and do not invoh's conemons ,nd inethodolopes utthred in the 8 substantws cutogas to the Tarhnval conduct of the soev3ent enahnres are
, j "',, p Specificataans unchanaed ne ametyees redihs are not Dedtsehd Taciuncal Sp= rSostam MTSI forpm w a tm bs deaetmg the requamment that the , _ e ptrposed chanaes. au ufwy As require @ 16 Wat Be entena previously evalasted are still tr= t Fladioective Effluent Beleese Report be smce these chanen are purely administratne submitted on a semi-armual basis and licensee has provided its analysts of th*
issue of no signmcant hazards in nature and only change typcgrapbcal adds the requirement to the DTS that mrs. rrer editonal dawn for the Radmec*2v9 E' fluent Release Report ccmdar=Mri, which As presenwd consistency.repagmare and ren.arnber the be subettted armually,in accordance be b - .
docurnent. and dele *e partnent portions of with the revised 30 Cm SD.36a In The operat on of Nme Mile Point Uzut 1 so the Technicol speificatrons that are no edditen, this amendment eliminates ,,- with h prnpa==d ameensamt longer dietsm or beve baen prenousiv ~
wHl acs savoin a egenar==' taareme sa tese approved for deletion fremie DTS the requirements for an potsahastyore af an c=,h e The F8 Posed changes are ari rum stretwe Altematmg Current tA C.) Sources and pasusoush eenhamind. In nature and do not affect the safe operuuon.
Onsite Pow r Distributian Systems.The & psoposed amendment anocrpumass of the piant. Nrafare,the propoemd charges ~*
stafl has determined that the proposed ehneeuw <henges and does nota 8mes do not meo)ve a sign Scant roamcszon in e amendment does not require a es==pa.<- cansmand so any sansry analyses margin of animy. ,
significant barard consideration, nar do the chases a8mca7esad Jhmefe, based as the abm emahiamn. t pursuant to 10 CR 50 92 SPasfecaswas tant puesne amisty snahens Nhgem Mohawk hm coacheded that these Possession.Oni} Ucense No~ NFT.82'. 6'auntPuobe And**Ge*%'* 9"Funed O**" W & T b' # '
Amendment revtse5 the DTS. changes do not medrfy one physucal damign m one82 dam 8 son LocalPuthc DocumentRoorn opersson af the plant. N pepcmed r+ The NRC staff has rwnewed the locobon ShorehamWadingher am poseJy edamnstonee a meine ausd cuW licanese's analysts and, based on this dange typassaphacei arrm. mehe adramal renew,it appears that the thme Pubhc Lbrary,Shoreham Wadtm8 R iver chagu har- 3,wresseau and standards of 50.92(c) are satished.
Eph 11792School. Route 25A. Shoreham, NY renumber the dar===t, and deJee partmen2 Therefore, the NRC staff pro portaons of the Techescal Spoor 6catmos that -
Ar orrn for beenm+ Mr. W. Taylor are me longeraffectrie er howe been determtDe that the amendment request Reveley. m. Hunton and Wilharna, pmvously apposed imr damstaan. Speypisig af involves no significant hazards Rn ert ont Plaza. East Toower,951 East ce hualSpasacaueo poem shws kar ju
"{g QDocuarentJioam Byrd Street. R2chmond VA 23219-4074 f,'c c,'f3' ,$, Y,Fp , [*r Jocanon: Reference and rhm==nts -
Mic Project Moncter:Clayton L emendmana respesas. Nrelm. die Departsnent. Panfield Library, State
'OO IT- proposed amesidment wd1 mes saarense the
'GCDmsJen Desctor; Richard L Umrersty of New York, Oswego, New prc.neh1Lty or 3 == af as acndent York 13126.
L.mgart pmvxasily evaluesed. Attorneyforheensee Mark J.
Nagara Mohewk Pow Cc,r . m operataae o me Male P im Oest t in Wetterbahn. Esgure, Wmsten a Strawn, Ducket No.58-224. Nme Milegt.. accordance wah the pmposed easedmaat wdJ act cs w the posaabihry of a new or 1400 L Street. NW., Washington, DC Nuclear Stetson 1Jnit No.1.Gewego different kmd of accident &can any eccadent 20005"350'*
County, New York NRCProject Diracict: Robert A. Capra prencens!y cabetal.
Date of amendment request May 14' 3d"* there am no changes in ihe =ey the Ni are Mahowk Power Corporation.
1993 Plant is cy8'" 8"
- 8 "*d th't*d asd gnant et No.50and egaipment 410 Nkne Mile Point !
a DescnPten of amendmem rguest. Pklacal Nadear Station, Unit 2,0sws;go
,he proposed amendmaat would revise potential for an ua==ained accaduct as not i
County, h hk the Appendix ATechIncal cr,..ed. m proposed champs am -
edministrouw is aerum and do not affect Dore of ornendmerrt request: Apn! 30 Spec 2f: cations to male the following anyaccident anaustras sur Nees Mile Poma 1993 editorid chanes: correct obnous l' nit t.The propoemd changes am puely Desenprion ofemendment request:
trpoFet L. cal errors, add temperatur, edenwrtman am astum and ecjychage l The proposed amendment would make deFw syns 14 add commas and tVPW8Ph* cal ar*5 85* *d2n*W"f'5 i
two changes to Act:en Statement a 2 c1 periods for clantv. provide consistent for consneency, repagmate and renm h Limitme Condition for Operation (LCD) paFe headings!bNes, adyst hne spacing document. and delene pertment poruous of (repagmattor ), remove allintendonally ,h((( o ,h
- u u b& Standh GasTem blant pages. tenumber all pages. remove p,,'[, 3 7 Systam (SGTS). This Adion Stalarrwm1 outdeted footnotes, acd add the delta approved for de.euon hoam watewk apphes when irradaeted fuelis being ;
symbol in place ci the word delta. In beheves that it is prudent so beve the bandled m the reactor building and !
eddiucn. the propc sed amendmant Tare ==1 Speca6ca: nae pape n-eyped tr.to a durmg core aharstmas and operations ;
word pmcess:ng database. Thas alk=s for with a potential for draintag the reactor
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would dalete pertu.ent portaans 4 the betsar cianry. rendatuhey end ouctroi of Technacal S[secz6catmens that rejated to Technical Spocalicataos paone for hatu" vessel The current Action bestement ansandamant agasts m proposed permits these act3nties to ttmtmue for 4
one-time only date es2ensmas which -l bas e since expired. corrwet wfwrences to ' up to 7 days wbec one SCTS subsyste:n i nnsed wrulations,de'ies an tmtdeted
,',"Ny de merenEd 18 inoperable The first proposed change i last peregrupb in Buses Sections 3.3.7 m., gam any.cc,4 , p,,,3.ay ev.;u tad.
would pezznit these actinues to ,
continue beyond 7 days with cae SCTS <
and 4.3.7. add tiarifytrng hoedings of m opentaos of Name Mae Panat Unst t se subsys#em eine . ' ' prended the j Shutdown." 1efuel." Saartup." and ecomdanca was the psmpe.ed asmanamnet opereble SGTS sobsyssum as m 1 I
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