ML19317F605
| ML19317F605 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 08/26/1977 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19317F598 | List: |
| References | |
| NUDOCS 8001150924 | |
| Download: ML19317F605 (4) | |
Text
.
SAFETY EVALUATIGif BY THE OFFICE OF ildCLEAR REACTOR REGULATION SUPPORTING MEHa1ENT NO. 6 TO LICDiSE tri. twF-3 TOLEDO E01SOff C01 PAN (
0[
M l
AND 8
y ll CLEVELANJ ELECTRIC ILLGildATING CuiPAdY q.
g '_
{
g DAVIS-oESSE NUCLEAR POWER STATION, UNIT 1 00CAET NO. 50-345 INTROUdCTION oy letter, datea July 29,1s77, the Toledo Edison Company notifiea us tnat iaccifications nad eeen completed in the emergency ciesel generator ruel oil storage and transfer syste:a as stipulated in Paragrapn 2.C.(3)(o) of facility operating License 40. NPF-3. Also, tne Toledo Ecison Company requesteu a enange in tne Teuinical Specifications, Appencix A, to saio license to allow operation of tne conpleted installation of tne accifiea recundant, etaergency airsel generator tuel oil storage tanks anc tratister s/stera in lieu or tne canon fuel oil storage system presently in operation ror davis desse, Unit 1.
Paragrapil 2.C.(J)(D) of Facility Operating License No. hdf-3, issued on April 22, 1371 stacea as a concition to said license that:
ditnin four (4) montns of tne cate of issuance of Inis license Toleco Edison Coapany shall complete :noot fi-cations in tne diesel fuel oil storage and transfer system.
The moaified cesign snail provide eacn diesel generator witn a 40,000 gallon seisuic Category I fuel oil storage tan ( wnicn snall oe installed and protected above ground against tornad, rcrces ano tornado raissiles. Eacn fuel oil storage tanx snall De provided witn its own seissaic Category I transrer puap, pipinJ and valves to serve its respective ciesel generator oay tanx."
uISCUSSIOn During our review and evaluation of the Final Safety Analysis Report for Davis desse, Unit 1, we deter:ained that tne design of the emergency diesel generator fuel oil storage and transter system was not acceptaole.
eersesp
'eehrasians >
hrsh NRC PORM 318 (944) PGLCM 0240 k u. s. sovsanuswe rmwetwo oerseas seve -eam 8001150 k
e
, On tiarcn 1,1976, the Toledo Edison Coapany sumaitted Anendment No. 33 consisting of Revision No.17 to the Final Safety Analysis Report.
Revision No.17 inclucea modifications in the ciesel fuel oil storage ano transfer system in order to meet our requirements for redundance, I
seismic design, and tornaco missile protection.
dy letter, datec viarcn 4,1976, the Toledo Edison Company requested permission to temporarily operate the diesel generator fuel oil storage dnd transfer system Wita the tnen presently designed and installed 100,000 gallon cocation aiesel fuel oil storage tant and transfer systeai until tne modified system as specitted in Revision !!o.17, could be installed and completeo. ine Toledo Ecison Company stated tnat the mdified system could not De completed oefore June 1977.
EM.UATION ne evaluated tne Toledo Ecison Cocpany's proposed modifications for tile ciesel fuel oil storage ano transfer systaci and found tne accifled system to De acceptaole. Tne cases for our conclusion on tne acceptability of tne mooitied system are proviced in Section d.3 and Section 9.6.3 of cur Sarety Evaluation Report.
Also, we caterrainea tnat until sne modified system was insta11ec and completed tne tnen prasently installed connon ciesel fuel oil storage and transfer system coulo be used for tne short period of time from tne tnen scneduled fuel icading cate of Feoruary 1977 to tne tnen scheculeo completion of tne mooified system in June 1977. Our basis for allowing operation of tne ccanon fuel oil storage and transfer system was proviced in Section 9.b.3 of our Safety Evaluation Report.
Prior to issuance of the Davis Besse, Unit 1 Facility Operating License, tne Toleco doison Co:::pany stated tnat completion of tne moot fiec system would not ce completec oefore mid-July 1977 oue to procurenent ano con-struction celays. da tnen determined tnat the ceriod of time allowable for plant operation witn tne comon fuel oil storage and transfer system shoulo oe four contns front tne date of issuance of the facility operating license.
On July 29, 1977, we informed the Office of Inspection and Enforcement that the Toleco Edison Company nad completed the modified emergency diesel fuel oil storage and transfer system. Ana, we requested that tney verify that tne modified system had oeen installed to the conditions specified in Paragrapn 2.C.(3)(b).
D 11 Al q r i !
L O
orrece >
ounname >
navs >
NRC FORM 31s (9 76) NRCM 0240 W ve s. eovsenesswr reinvine orrecs. e ste -eaemaa
- dy memorancum dated August 19, 1977, the Office of Inspection and Entorcement informed us tnat tne modifica emergency diesel fuel oil storage and transfer systea nad oeen installed and was in full accorcance witn the stipulations of varagrapn 2.C.(3)('-).
dased upon our Concluhions as stated in our Safety Evaluation Report ano upon installation of sne moc1 tied ea:ergency ciesel generator fuel oil storage and transfer system which nas Deen verified by the Office of Inspection and Enforcement to De fully in accordance with the stipulations of Paragraph 2.C'.(3)(o), we find tnat tne conoition stipulated in Paragrapri 2.C.(3)(o) is no longer necessary. Therefore, we conclude tnat Facility Operating License No. NPF-3 can de amended cy removing the license concition as stated in Paragrapn 2.C.(3)(D).
At the time Facility Operating License No. hPF-3 was issued on April 22, 1917, Tecnnical Specification 3.d.1.1.c.2 requirea as a limiting condition of operation ror c:oces 1, 2, 3, and 4 tnat the two separate and incepencent diesel generators nave a comion fuel storage tank containing a minimun value or o4,udo gallons of fuel. Tne minimua storage allowed (e4,0cv gallons) was to assure tnat a seven day fuel oil supply was availaole to supply eacn energency diesel generator.
Ine installation of tne modified fuel ot' storage and transfer system no.v provides for separate 40,000 gallons seismic Category 1 and tornado protected ruel oil storage tants. Therefore, tne Toleco Ecison Company has requested that Tecnnical Spect rication 3.d.l.l.b.2 de ray 1 sed to reflect the instal-lation of tnese relancant storage tanks. The Toledo Edison Coopany has requested tnat Tecanical Specification 3.o.l.l.b.2 be cnangea to specify tnat as a li.aiting condition of operation for Modes 1, 2, 3, ano 4 tnat the two separate and independent diesel generators nave a separate ruel storage system containing a minimum volume of 32,000 gallons of fuel.
As discussea aoove, ne required that trie aiesel generator fuel oil storage ana transfer systata De modified to the stipulations of Paragrapn 2.C.(3)(c) of Facility Operating License No. h?F-3.
In as much as tne modified system now fully complies witn tne conditions of Paragrapn 2.C.(3)(b) and since the 40.ub0 gallon recundant storage tanks will eacn nave a seven day fuel oil supply available (32,000 gallons) for operation in Aodes 1, 2, 3, and 4 we fina the requested cnange to Tecnnical Specification 3.8.1.1.b.2 to De aCCeptaDie.
~
D*kiM o
1mE OrFICE W
~
~
II". ~ l 2
'~'
eunusu n k oavu >
NRC 70RM 318 (9 76) NROC 0240 W us e. oovemmuswr reinviwe arrt.s teve -eee.ene
r
~
4-ENVIR0d ENTAL C0h510ERATICtd We nave determined tnat tne amendment does not autnorize a change in effluent types or total amounts nor an increase in power level and will not result in any significant environmental impact. Having made this cetertaination, we nave f urther concluded that the aiaencuent involves an action wnicn is insignificant from the stanopoint of environmental impact and, pursuant to 10 CFR $51.5(o)(4), tnat an environmental impact state-ment or negative ceclaration and environmental impact appraisal need not ce prepared in connection witit the issuance of this acienament.
CONCLOSI0a
,de nave concluded, based on tne consicerations discusseo aoove, that:
(1) oecause tne scencaent coes not involve a significant increase in tne procooility or consequences of accicents previously considered or a sig-nificant decrease in any safety margin, it does not involve a significant nazards consiceration, (4) tnere is reasonaole assurance tnat tne nealtn ano safety of tne puolic will not ce endangerec oy operation in the prooosed aunner, ano (3) sucn activities will ce concucted in compliance witn the Catuission's regulations and the issuance of tnis amencnent will not ce inimical to tne ccuaon oefense and security or to tne healtn and safety of tne puolic. Also, we reaffirm our conclusions as otnerwise stated in our Safety Evaluation Report.
Dated: AUG 2 61o77 03 M
JJ AI m r Tgr I.S.A.
La
\\LMR-#1 LWR,#1 LWR-#1 LYMl',
. EHylth:klj JSt h was..,
U1N h 8/ /7h 8M/77 w,,,
NRC PORM 318 (9 76) NROi 0240 W u. s. sovsamasswr rainvine orriese seve < ee.as4
.. - - _.