ML20205M503

Forwards Safety Evaluation Denying Util 860819 Request to Substitute Microfilm for Original Radiograph at Facility. Constraints in Methods & Procedures Need to Be Resolved W/ Micro Media,Inc Before Techniques Found Acceptable

ML20205M503
Person / Time
Site:	Prairie Island
Issue date:	03/27/1987
From:	Diianni D Office of Nuclear Reactor Regulation
To:	Musolf D NORTHERN STATES POWER CO.
Shared Package
ML20205M507	List: ML20205M503 ML20205M526
References
TAC-63131, TAC-63132, NUDOCS 8704020415
Download: ML20205M503 (4)

Text

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MAR 2 7 Sg7 -

Docket Nos. 504282

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Mr. D. M. Musolf, Manager Nuclear Support Services Northern States Power Company 414 Nicollet Mall Midland Square, 4th Floor Minneapolis, Minnesota'55401

Dear Mr. Musolf:

By letter dated August 19. 1986, Northern States Power Company (NSP) requested that the Office Nuclear Reactor Regulation review and concur with a methodology for microfilming radiographs assocL.ed with safety related -

components at the Prairie Island Nuclear Gener:QgPlantUnitNos.-1and2.

The ASME Code Section XI (1980 Edition, Winter 01 addenda)' allows radiographs to be microfilmed ~provided that the accuracy of the reproduction-process gives the.same information retrieval capability as the original radiograph when the microfilm is projected to the original size, including exposure, focusing, contrast and resolution. Specifically, the methodology.

for' microfilming proposed by NSP consists of:

(1)' multiple exposures utilizing five microfilm ~ images for each radiograph, in which each microfilm image has a different density ranging from approximately 1.5 to 4.0, (2) selecting component radiographs that are likely to be reproduced successfully to meet Code requirements, and (3) retention fo'r a period of two years all original radiographs reproduced on microfilm.

The staff is concerned with the disposal-of the original radiographs =of certain Code Class 1 and 2 components. showing the reactor vessel welds, the safety-related pipe welds, and components with known flaws:that now serve as baseline information for future examinations and evaluations.

We request that these particular radiographs be retained as permanent records.

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. On December 17-18, 1986, the NRC staff accompanied by an NSP task group-audited Micro Media Inc., Minneapolis, Minnesota to determine if the microfilming activities met Code requirements. The NRC> agrees with the task group's conclusions in that several critical constraints.in the methods and procedures need to be resolved before' microfilming.. techniques at Micro Media Inc., can be found acceptable. These constraints are discussed in our.

safety evaluation, a copy of which is enclosed. On this basis, we conclude that your request for substituting microfilms for'the original radiographs at -

the Prairie Island Nuclear Generating Plant Unit Nos. L1 and 2 is denied.

This completes our efforts under TAC Nos. 63131 and,63132.

Sincerely, jsl Dominic C. Dilanni, Project Manager Project Directorate #1 Division of PWR Licensing-A

Enclosure:

As Stated cc's: See Next Page

[

Office:

LA/ PAD #1A'/Q PM/ PAD #1 PD/ PAD #1 Surname: PShuttleworth DDilanni/tg Glear-Date:

03/gp/87 03/gf/87 03p7/87 L_

j Mr. D. M. Musolf-Prairie Island Nuclear Generating Northern States Power Company Plant cc:

Gerald Charnoff, Esq.

Shaw, Pittman, Potts and Trowbridge 2300 N. Street, N.W.

Washington, DC 20037 Dr. J. W. Ferman Minnesota Pollution Control Agency 520 Lafayette Road St. Paul, MN 55155 Mr. E.

L~. Watzl, Plant Manager ir Prairie Island Nuclear Generating Plant

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Northern States Power Company Route 2 Welch, Minnesota 55089 Jocelyn F. Olson, Esq.

Special-Assistant Attorney General t

i Minnesota Pollution Control Agency 1935 W. County Road, B2 Roseville, Minnesota 55113 U.S. Nuclear Regulatory Comission Resident Inspector's Office 1719 Wakonade Drive East Welch, Minnesota 55089 Regional Administrator, Region III U.S. Nuclear Regulatory Comission Office of Executive Director for Operations 799 Roosevelt Road Glen Ellyn, Illinois 60137 l

Mr. William Miller, Auditor Goodhue County Courthouse

'j Red Wing, Minnesota 55066

.-Distribution Copies:

' 9' AR 2 7 IN (Stehet21%

NRC PDR Local PDR PAD #1 r/f

~PADil p/f TNovak, Actg Div Dir Glear DDilanni PShuttleworth NThonpson, DHFT OGC-Bethesda LHarmon.

EJordan BGrimes JPartlow EButcher, TSCB TBarnhart(4)

WJones RBear RBallard

'GJohnson JCollins (I&E)

F08, DPLA ACRS (10)

OPA

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