GO2-10-178, Response to Request for Additional Information License Renewal Application

Response to Request for Additional Information License Renewal Application

ML103620324
Person / Time
Site:	Columbia
Issue date:	12/21/2010
From:	Gambhir S Energy Northwest
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GO2-10-178
Download: ML103620324 (12)

Text

ENERGY NORTHWEST Sudesh K. Gambhir Vice President, Engineering P.O. Box 968, Mail Drop PE04 Richland, WA 99352-0968 Ph. 509-377-8313 F. 509-377-2354 sgam bhir@energy-northwest.com December 21, 2010 G02-10-178 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION

Reference:

Letter No. G02-10-11, dated January 19, 2010, WS Oxenford (Energy Northwest) to NRC, "License Renewal Application"

Dear Sir or Madam:

In a December 13, 2010 telephone conversation with the NRC Project Manager for the Columbia Generating Station (Columbia) license renewal application, Energy Northwest committed to providing additional information regarding the environmental assessment of electric fields associated with the 11 5-kV transmission line that serves as a backup power source for the station.

Included in Attachment 1 is the electric field profile for the 115-kV line. Also included in this attachment is information on conductor geometry. For comparison, Attachment 2 includes similar information for the 230-kV and 500-kV lines that link Columbia to the Bonneville Power Administration's (BPA) H.J. Ashe Substation. This information was obtained from the BPA and was used in the assessment of induced currents in Section 4.13 of the environment report that was submitted with the referenced letter.

If you have any questions or require additional information, please contact Abbas Mostala at (509) 377-4197.

A1H 3

RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Page 2 of 2 I declare under penalty of perjury that the foregoing is true and correct. Executed on the date of this letter.

ectfully, S;Gambhir Vice President, Engineering Attachments:

1. Electric Field Profile - Columbia 115kV to Benton/FFTF Tap

2. Electric Field Profile - Columbia 230/500kV to Ashe cc:

NRC Region IV Administrator NRC NRR Project Manager NRC Senior Resident Inspector/988C EFSEC Manager RN Sherman - BPA/1399 WA Horin - Winston & Strawn D Doyle - NRC NRR (w/a)

BE Holian - NRC NRR RR Cowley - WDOH

RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Page 1 of 4 Electric Field Profile - Columbia 115kV to Benton/FFTF Tap

Electric Field Profile Hanford No. 2 Tap to Benton - FFTF 115kV 1.60 45 1.40 40 35 1.20 30 1.00o 0

• 25

':1:

1a 0.80 0

C")L 20.0

.e 0.60V w

15 '0-0.40 0.20 10 0.20 5

0.00

.0

-100

-80

-60

-40

-20 0

20 40 60 80 100 Distance (feet)

TRANSMXSSION LLNE GEOMETRY INFORMATION (To Be Completed for Each Transmission Line)

Circuit Name: Haifordcl a

Voltage: I Y

157V Number of Circuits:

Conductor Name Piu.

.7

1. of Subconductors Per Phase-i Subconductor Diameter :.'

7 7<2i J!

Subconductor Spacing :"N"

'7§"'.;1.

Phasing Arrangement (include diagram)

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ing4i_

Vertical Phase Spacing :ee atta h

an g

Horizontal Phase Spacing :e atac*6.ed gha 4

Attachment Height at Tower de prrfii i ýng 7

Minimum Ground Clearance at Midspan :

• used24 feet for c-aic.

profile Shield Wire Diameter and Spacing aneer=oE7 6

ph spaci*fg diaram Shield Wire Configuration: (

ded or Sectionalized & Insulated Right-Of-WVay Width : 90fee-,

Placement Within ROW (include diagram)

Distance to Other Transmission Lines (include diagram)

IT A Other/Special Information Completed by :Dana Vetmeers Date: I]-,*, ý0/2J

Phase Spacing Hanford No. 2 Tap to Benton - FFTF H 71 12 12' 12' GMsc :15.12" r"Sc Ashe Tap to AEC Midway - HEW No. 2 J3 1 39' GW 27' 27' GMc = 34. 02" Ashe - Hanford Subconductor spacing 20" M23 U) r23 24' GW

30. 7' GMDSC= 32. 09' LOCkI PiW AF-rýROX.WEIGW-T 10 LS-5. MACH e-o-04'S E

RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION Page 1 of 5 Electric Field Profile - Columbia 230/500kV to Ashe

Electric Field Profile Columbia Columbia 90.00 5.00 Generating Station Generating Station -

Ashe #2 @ 230kV Ashe #1 @ 500kV 4.50 mm M

M 80.00 4.00 70.00 3.50

-6,0.00 ID X>3.000 "U

50.00,-

.* 2.50 -

E 40.00 '

t; 2.00 w2 v

1.50 C-20.00 1.00 0.50 -

10.00 0.00 0.00

-200

-100 0

100 200 300 400 500 Distance (feet)

TRANSMISSION LINE GEOMETRY INFORivLUTION (To Be Completed for Each Transmission Line)

Circuit Name: Columbia Generating' Station -Aoh#1 Voltage : 5__0_kV Number of Circuits :_____________

Conductor Name :!I lt incg

1. of Subconductors Per Phase-:

Subconductor Diameter -

93 Subconductor Spacing.'e

ýee tach,--deariwarefriaoovigry!<

Phasing Arrangement (include diagram)

Se, attached phtt e

d Vertical Phase Spacing: cee dattac

'I PtfIs spacil-g drtin4g Horizontal Phase Spacing e1tachPe drd il:-j Attachment Height at Tower at heprof if Minimum Ground Clearance at Midspan -

e a(worst cas e)

Shield %Vire Diameter and Spacing

ý7,'*'

p tt'ached phase1ý,spac=in Shield Wire Configuration: (

or Sectionalized & Insulated Right-Of-Way.Width: CombinedwithColumbia derating Stait~ion-he. 4

1. 2i8i.

s Placement Within ROW (include diagram)-

a tA.-L-t~c lian ldawing Distance to Other Transmission Lines (include diagram)> -"

attached an d~iii I

1O21feet chpnterliiý t&&ente e> to Corumbia Jenerating Statinforoation Other/Special Information 7

Completed by :b4Ana Vee-D

• Date i 63/3,/0

TRANSMISSION LINE GEOMETRY INFOIRMALTION

-- (To Be Completed for Each Transmission Line)

Circuit Name: Cl i

Gnrating Statiý-

Ache #2 Voltage: 2Y4( kV Number of Circuits :

Conductor Name -Drake

1. of Subconductors Per Phase Subconductor Diameter

1. 108 Subconductor Spacing - N/A Phasing Arrangement (include diagram) See a c-

-t3/4o g d

Vertical Phase Spacing :' -e attached phaoe opaicn Arawing~

Horizontal Phase Spacing e

aia hedhs*I 7

• pea'cing rawir*i-i Attachment Height at Tower -

"d

, p drawing Minimum Ground Clearance at Midspan 11 worst r:aje) aee attached profile Shield W ire Diameter and Spacing --

t,....

0 a

c Shield Wire Configuration : E or Sectionalized & Insulated Right-Of-Way Width! Co2ine~A ith Columbia g: stat ion-Ahe 8

5 Placement Within ROW (include diagram)

P Distance to Other Transmission Lines (include diagram) attachd planpii dz3win.

144et-,Scenterlinet, ntrlineto iiGiia era:ting io#

Other/Special Information:____________________________

Completed byba-i

e111-l-CDate;

)

Phase Spacing Columbia Generating Station - Ashe #1 500kV M28

33. 86 6W 30' 0

O"Sc 378' Columbia Generating Station - Ashe #2 230kV

Khounnala, Shannon E.

From:

McCauley, Donna E.

Sent:

Thursday, December 09, 2010 12:17 PM To:

Atkinson, Dale K.

Cc:

Coody, Donald R.; Nielson, Robert R.; Barfuss, Brad C.; Khounnala, Shannon E.; McNutt, Stephen C.; Jones, Brian D.; Vaughn, Steven L.; Gregoire, Donald W.; Apodaca, Danielle N.;

Hammond, Georgia

Subject:

Delegation of Authority - Robert R. Nielson - December 20-26, 2010 Robert R. Nielson, Supervisor, Environmental & Regulatory Programs will be away from Energy Northwest (EN) December 20-26, 2010, inclusive. Shannon Khounnala, Environmental/Regulatory Programs Specialist, will act as Supervisor, Environmental & Regulatory Programs during his absence. Mrs. Khounnala will have the full authority of the position except that which by policy cannot be delegated.

Should his return be delayed, this delegation will remain in effect until otherwise rescinded.

'Original signed and filed' Donna McCauley I Executive Assistant, Employee Development/Corporate Services 12 509.377.23321 F 509.377.43571MD PE03 Work Hoursl6:00 am - 3:30 pm PST APlease consider the environment before printing this email 1