ML17277B474

Application to Amend License NPF-21,revising Condition 2.C(11) Re Shield Wall Deferral.Change Would Allow Ongoing ALARA Reviews to Identify Need for Addl Shielding

ML17277B474
Person / Time
Site:	Columbia
Issue date:	08/15/1984
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Schwencer A Office of Nuclear Reactor Regulation
References
GO2-84-456, NUDOCS 8408270073
Download: ML17277B474 (9)

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REGULATORY f NFORMATION DISTRIBUTION "S o EM (RIDS)

ACCESSION NBRj8408270073 DOC ~ DATE: 89/08/15 NOTARIZED: NO DOCKET FACILt50~397 NPPSS Nuclear Projects Unit ?p washington Public Powe'5000397 AUTH ~ NAME AUTHOR AFFILIATION SQRENSENiG.C, Nashington Public 'Power Supply System RFCIP ~ NAME RECIPIENT AFFILIATION SCHNENCERrA ~ Licensing Br anch 2 SUBJECTS APPlication =to amend License NPF 21irevising Condition, 2~C ( 1 1 ) r e shield wal 1 deferral,Change wou] d a] ow ong'oing 1

ALARA reviews to identify need for addi shielding, DISTRIBUTION CODEt A0010 COPIES'ECEITEOILTR L ENCI. J OR Submittal: Gener al Distribution-SIZE'ITLE!

NOTES: 05000397 OL:12/20/83 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME. LTTR ENCL ID CODE/NAME LTTR ENCL" NRR L82 BC 01 7 7 INTERNAL+ ADH LFMB 1 0 ELD/HDS2,. 1 0 NRR/DE/MTEB 1 1 NRR/DL'IR 1 1 NRR/DL/DRAB i0 N ETB 1 1 NRR/DSI/RAB 1 1 REG F ILE 04 1 1 RGNS 1 1 EXTERNAL; ACRS 09 6 LPDR NRC PDR 02 1 1 NSIC NTIS 1 1 gz~'J ~ ggPck /88 DD TOTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL 23

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Washington Public Power Supply System P.O. Box 968 3000 George Washington Way Richland, Washington 99352 (509) 372-5000 August 15, 1984 G02-84-456 Docket No. 50-397 Director of Nuclear Reactor Regulation Attention: Mr. A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

NUCLEAR PLANT NO. 2 OPERATING LICENSE NPF-21; REQUEST FOR AMENDMENT TO LICENSING CONDITION 2.C(11), SHIELD WALL DEFERRAL

References:

1) Letter, G02-'83-391, G. D. Bouchey (SS) to A. Schwencer (NRC), same subject, dated April 27, 1983

2) Letter, G02-83-263, G. D. Bouchey (SS) to A. Schwencer (NRC), same subject, dated March 28, 1983 In accordance with the Code of Federal Regulations, Title 10, Parts 50.90 and 2. 101, the Supply System hereby requests an amendment to the subject licensing condition. It is requested that licensing condition 2.C.(1'1) be amended to read as follows:

"The Licensee shall complete construction of the deferred shield walls and window as identified in Attachment 3 to this license as dictated by ongoing ALARA reviews identifying the need for additional shielding."

An update to Attachment 3 is also included, and is a part of this request.

These deferrals have previously received an ALARA review by the WNP-2 health physics staff, and were judged to have no appreciable effect on personnel exposures. Since the specific term of deferral is not known at this time, the subject'shield walls and window will be installed either before the associated system is util'ized or when an ALARA review identifies the need for additional shielding.

8408270073 840815 ADOCK 05000397 'DR P PDR

A. Schwencer Page Two August 15, 1984 SHIELD WALL DEFERRAL Radiation levels in the affected areas will be monitored during the Power Ascension Test Program in order to establish a base case. These areas will then be routinely monitored during commercial operation in accordance with appropriate procedures with periodic ALARA reviews performed to ensure personnel exposures are minimized. ALARA reviews will also be initiated per approved plant procedures upon significant radiation level increases.

The reasons for construction deferral previously identified in the above references remain valid at this point in the Supply System plant program.

We wish to emphasize that these deferrals will have no effect on personnel safety, either on or off site. The current status of each item is as follows.

1. FSAR Fi ure 12.3-32, Zone H-9, 437'l.

The partial height wall outside the spent resin tank will be installed. The spent resin tank is currently in use although high radiation levels are not expected for some time. Thus, wall installation will occur before high radiation levels are experienced in the spent resin tank.

2. 'FSAR Fi ure 12.3-26 'Zone G-12 441'l.

Installation of the block shield wall for condenser tube access is still deferred. A locked gate will be used instead to control entry to the high radiation zone. An ALARA review has shown that principal radiation sources are not in line of sight with this doorway. This has,been confirmed by radiation surveys during startup. Radiation surveys will continue during startup and after reaching commercial operation and a re-evaluation will be made if high radiation. levels are detected.

. 3. 'FSAR Fi ure 12.3-'27, Zone'D-'l1,'441'El.

Same as above, at the other end of the condenser.

4. FSAR Fi ure 12.3-'34,'one'H-'8;'487El.

The access blockout to the spare demineralizer cubicle is being installed. The cubicle is currently not in use, but radiation

.levels of,15-20 mr/hr have. been detected due to an RWCU line which passes through the cubicle;

5. 'SAR'Fi ure 12:3-'.33, Zone'G-9;'467El.

The partial.-blockout wall to the centrifuge room continues to be

..deferred because current plans do not include use of this centrifuge.

Heed for the wall will be re-evaluated prior to use of the centri-fuge (Gll-D094A).

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A. Schwencer Page Three August 15, '1984 SHIELD WALL DEFERRAL

6. FSAR Fi ure 12.3-33, Zone F-9, 467'l.

Same as above for the Gll-D094B centrifuge. Radiation levels of 45 mr/hr have been detected due to an EDR line in this room which is used for transfer to the resin tanks. Access to this room is being administratively controlled. This control provides adequate personnel radiation protection since no line of sight exists between the EDR line and personnel on the other side of the existing partial shield wall.

7. FSAR Fi ure 12.3-34, Zone J-5 467'l.

The blockout shield wall for one decon concentrator is still deferred. Use of the idle decon concentrator is deferred. When the concentrator is placed in service, the need for the blockout shield wall will be re-evaluated. The shield wall shown on Zone H-5 is installed.

8. FSAR Fi ure 12.3-32, Zone'D-8, 437'l.

The two block shield walls at the north end of the truck loading bay are still deferred. An ALARA review of this area has concluded that the block shield walls are not needed at this time because we are not using the container filling and capping station in the WNP-2 permanent solidification system. This system has been deferred.

9. FSAR Fi ure 12.3-32, Zone'E-'8, 437'l.

The installation of the leaded glass viewing window is deferred. A re-evaluation of the installation of the window will occur prior to utilization of the. Supply System solid radwaste processing system which has been deferred.

The Supply System has reviewed the requested amendment per 10 CFR 50.59 and 50.92 and has,determined that no significant hazard or unreviewed safety question will result. Further, the proposed change will not:

Involve a significant increase in the probability or consequences of an'accident previously evaluated; or Create the possibility of a new or different kind of accident from any accident previously evaluated, or 3} Involve a significant reduction in a margin of safety.

A. Schwencer Page Four August 15, 1984 SHIELD WALL DEFERRAL The Supply System has evaluated this request in accordance with the criteria in 10 CFR 170.21, and has included a warrant for one hundred fifty dollars ($ 150.00) as initial payment for this application for amendment under Facility Category A (Power Reactors).

In accordance with 10 CFR 50.91, the State of Washington has been pro-vided a copy of this letter.

No FSAR revisions on this'ubject are planned since these are still considered to be temporary deferrals. Should you have any questions in this matter, please contact Mr. P. L. Powell, Manager, WNP-2 Licensing.

Very truly yours, G. C. S rensen, Manager Regulatory Programs LDS/tmh Attachments (2) cc: R Auluck - NRC WS Chin - BPA N Lewis - EFSEC AD Toth - NRC Site JB Martin - Region V

ATTACHMENT 3 LIST OF SHIELD WALLS

• FSAR Fi ure 12.3-32, Zone H-9 - The partial height wall outside the spent resin tank room.

2. FSAR Fi ure 12.3-26, Zone G-12 - The tube access wall to the main condenser.

• • 3 FSAR Fi ure 12.3-27, Zone D-11 - Same as above, only other en of condenser.

• 4 FSAR Fi ure 12.3-34, Zone H-8 - The access blockout to the

• • spare demineralizer cubicle.

FSAR Fi ure 12.3-33, Zone G-9 - Same as above for the uplicate centrifuge room.

6. FSAR Fi ure 12.3-33, Zone F-9 - Same as above for the uplicate centrifuge.

7. FSAR Fi ure 12.3-34, Zone J The blockout for one of the two decon concentrators.

8. FSAR Fi ure'2.3-'32, Zone D The two block walls at the north en of the truck loading bay.

9. FSAR Fi ure,12.3-'32; Zone E The leaded glass viewing win ow in the ra waste area.

• Items 1 and 4 will.be installed prior to one year after the issuance of the WNP-2 Operating License.

~"Items 3 and 4 were incorrectly listed. in the license (see original "Attachment 3 to NPF-21). "G02-.83-263 of March 28,'983 listed items 3 and 4 as shown. The attachment to the license omitted item 4 and transposed the description of item 4 wi th that of item 3.

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