ML17054A133

Requests Util Analyze Potential for Flooding of safety- Related Structures,Sys & Components Caused by Location of Security Fence for Unit 2 for Rainfall Events Up to Pmp. Response Due in 45 Days

ML17054A133
Person / Time
Site:	Nine Mile Point
Issue date:	09/19/1983
From:	Vassallo D Office of Nuclear Reactor Regulation
To:	Rhode G NIAGARA MOHAWK POWER CORP.
References
NUDOCS 8310060581
Download: ML17054A133 (10)

Text

~ ~p,S Rangy ci 0

Cy I AnO

+~

~O

+w*w+

Docket No. 50-220 t

UNITEDSTATES t

NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 September 19, 1983 Mr. G.

K. Rhode Senior Vice President Niagara Mohawk Power Corporation 300 Erie Boulevard West

Syracuse, New Yor k 13202

SUBJECT:

STAFF CONCERN REGARDING POTENTIAL FOR FLOODING Re:

Nine Mile Point Nuclear Station, Unit No.

1 On August 2, 1983, during the environmental site visit to Nine Mile Point Unit 2, the hydrologic engineering reviewer, noticed that a security fence for Unit 2 is partially blocking the drainage ditch, which i's located just to the south of the switchyard for Unit 1.

The fence crossing is also just upstream of three large culverts under the access road connecting the Unit 1

parking lot with Lake Road.

The relative locations of the above mentioned items are shown in the attached Figure 1 and copies of photographs are shown in Figure 2.

The staff is concerned that in the event of the fence may catch debris causing flooding possibly other parts of the site, or that a

washed downstream into the culverts causing We request that you:

an intense rainfall on the site, of the Unit 1 switchyard and section of the fence may be similar flooding.

(1)

Analyze the potential for flooding of safety related structures,

systems, or components as caused by the location of the fence for rainfall events up to and including the probable maximum precipitation; and (2) if such potential exists, to describe changes which will be made to rectify the problem.

Should a situation occur where there is no readily apparent resolution between staff concern for a potential flooding situation and those measures required for plant security, the staff will be available for discussion of this issue.

83i006058i 830919 PDR ADOCK 05000220 P

PDR

~

4 f

,f C,y

G. K. Rhode In order to assure this concern is addressed in a timely manner, you are requested to address this issue within 45 days of the date of receipt of this letter.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.

Sincerely, Original signed by/

Attachment:

As stated Domenic B. Vassallo, Chief Operating Reactors Branch 82 Division of Licensing cc w/enclosure:

See next page bcc w/enclosure:

W. V. Johnston R. Ballard M. Fliegel H. Imps~

PhdPba J

Distribution:

', Docket File, NRC PDR Local PDR ORB b'2 Rdg D. Eisenhut OELD E. Jordan R.

Hermann ST Norris NSIC J. Taylor ACRS (10)

DL:QRB2 DL:0 S

orris RHe nn

'/I0 /B3 9I/)q /B3 DL: RB2 DVassallo 9/ /Lf /83

~

~

Fp

Mr. G.

K. Rhode Niagara Mohawk Power Corporation Nine Mile point Nuclear Station, Unit No.

1 CC:

Troy B. Conner, Jr.,

Esq.

Conner 8 Wetterhahn Suite 1050 1747 pennsylvania

Avenue, N.

W.

Washington, D. C.

20006 Mr. Robert

p. Jones, Supervisor Town of Scriba R.

D. g4

Oswego, New York 13126 Niagara Mohawk power Corporation ATTN:

Mr. Thomas Perkins plant Superintendent Nine Mile point Nuclear Station post Office Box 32

Lycoming, New York 13093 U. S. Environmental protection Agency Region II Office Regional Radiation Representati've 26 Federal plaza New York, New York 10007 Resident Inspector U. S. Nuclear Regulatory Commission post Office Box 126 Ly'coming, New York 13093 John W. Keib, Esquire Niagara Mohawk Power Corporation 300 Erie Boul'evard West

Syracuse, New York 13202 Thomas A. Murley Regional Administrator Region I Office

~

U. S. Nuclear Regulatory Commission 631 Park Avenue King of prussia, Pennsylvania 19406 Mr. Jay Dunkleberger Divisi on of pol icy Anal ys i s and pl arming New York State Energy Office Agency Building 2, Empire State Plaza

Albany, New York 12223

t,1 w tl l

~I

~ ~

'V FIGURE 1

~,. yaw, s ~p '*%Nag%'y',

O N I 284000 9

O le

'E A

K I.

(d 0

N R

Y t'

usa T 2 REVE Teflon-OITEH SYSTEM N I?83000

&IORE UNE~

Q INIORIAATICN CENTER S

TREATISE PLANT 480 CFS I I

t OE 0o Os

~5~ I'KV h Su0

'~'ENI=RUNE CF FC "OC CCNTROI 8EPMS

~ TD WSE I I ER 255 I t

OF256.0

~IIIT sy IT V CTI<A wSE 256.4 pAVEO pARKIIIG I.OT Pl]e.:.g COOI.IN TOWER M~18 CCO 098ISCF g>/~c >

CONCRETE RAICROAO CROSSING TO OF 0

,,.jli l:tel I ENTRA RDAO 2Th')

WITH~

EACH SI RE TRA~I%ION LINES I

N I~IOOO'SE 2'.F FS wFST 8ERIJ wSE 275.5 --r I.AKE gPO

. EKISTING WEST ORA)NAGC RC

W

~ '

/,+ ~ ~

I

~

<~+ ~i.'Ypl5447+~ 3 I

i

~ '.'~ ~'3(P g~.(,

g

~

I'CA

~c+a: ',~ f~l, e

~ ~/',"

) ~J i+ ~"~a'lgAp pg C

)

I

~

pP

,j)<:(>>,'

I

~ 4f

~

j t'

4 g r,4'.

1

~ N)i S

k$~vg~, ~~<(z,.~g,<f),j(.

-,,gag >(g9

~gg4~4 +Q,tg~>gf s> 'yj,f'," -q 't+<\\>

~

'Akk@i.,':

/ '$ g! (gun/< "J'own Sdr~~)

'l>:'

/=sNc~" ( zool<i~p Pj~~~~e~~3 1

~

'\\

M C5 U

I

/3oZ'd'o rn o7 fEA/Cb-

.> - cA...i) 1

I l

l.

i$

,<~" +'~~(i()j()l

.~)

~

p j~g g rQ~

J'V If,k k'j()($;g',i,p! I,((() 3 kQ

,~,gf, (,i )p, >,,(ai) fh:

I '~<fj

'1 J

~

)kQ ), ) 'g

~

j li I

pi pf ~

~j'.> %4ji5j~Ã4~t'$p "5.>;=.qj~g:g~". pl~$ft

~ ~4

~