ML20210U789

Forwards Summary of 870122 Enforcement Conference W/Util to Discuss Design & Procedural Problems Associated W/Loss of Water from Spent Fuel Pools at Facilities.Attendees List & Util Meeting Outline Encl

ML20210U789
Person / Time
Site:	Hatch
Issue date:	02/04/1987
From:	Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:	James O'Reilly GEORGIA POWER CO.
References
TAC-64455, TAC-64456, NUDOCS 8702180589
Download: ML20210U789 (19)

Text

- - _- _-__________

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3 orgia Power Company

' ATTN: Mr. James P. O'Reilly Senior Vice President-Nuclear Operations P. O. Box 4545 Atlanta, GA 30302 Gentlemen:

SUBJECT:

ENFORCEMENT CONFERENCE MEETING

SUMMARY

- DOCKET NOS. 50-321 AND 50-366 This refers to the enforcement conference conducted at our request in the NRC Region II office on January 22, 1987. The meeting was held to discuss the design and procedural problems associated with the loss of water from the spent fuel pools at Hatch. The details of the meeting are provided in Enclosure 1. A list of attendees at the meeting is shown in Enclosure 2.

It is our opinion that this meeting was beneficial in that it provided a better understanding of Georgia Power Company's position on the issues.

In accordance with Section 2.790 of NRC's " Rules of Practice", Part 2 Title 10, Code of Federal Regulations, a copy of this letter and its enclosures will be placed in the NRC Public Document Room.

Should you have any questions concerning these matters, we will be pleased to discuss them.

Sincerely, ORIGINAL S!GNED BY:

1 NELSOM GRACE J. Nelson Grace Regional Administrator

Enclosures:

1. Meeting Summary

2. Meeting Attendees

3. Meeting Outline Submitted by Georgia Power Company cc w/encls:

IK T. Beckham, Vice President, Plant Hatch  !

LM C. Nix, Site Operations General '

Manager

- A Fraser, Acting Site QA Supervisor v$

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- Gucwa, LicensingManager, Nuclear Safety 00 SS b c w/encis:

og C Resident Inspector cou '

gh S. Jordan, Executive Secretary ,

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$< State of Georgia

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f ENCLOSURE 1-MEETING

SUMMARY

Licensee: Georgia Power Company-

-Facility: Hatch Units 1 and 2 Docket Nos: 50-321 and 50-366 License Nos: DPR-57 and NPF-5 An enforcement conference was held on January 22,-1987, in the Region II offices with Georgia Power Company (GPC). The subject of this conference was the potential enforcement actions steming from the loss of fuel pool level by means of a leak by the fuel pool transfer canal seals.

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The conference was opened by J. . Nelson Grace who asked 11f-GPC understood'the NRC concerns. When GPC responded .that they.were ready to address 1 the NRC '

concerns, the floor was turned over to GPC for their presentation.

GPC reviewed the event and the actions taken to contain and clean .up?the contaminated water lost from the fuel pool. No;information presented in'this area'was different than what was previously understood to have occurred.

The NRC had a concern as to whether the transfer canal sealsLwere adequately designed to prevent'a significant loss of contaminated water from the fuel pool-

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as specified by Criterion 61 and 64 of Appendix A, General Design Criteria (GDC)..

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GPC stated that their analysis of the sea 11 design indicated that it was proper and in accordance with GDC and NRC Safety Guide 13 which implements GDC,61. GPC also stated that all FSAR commitments were met. The air' supply to.the seals was stated to be redundant but not single failure. proof. The redundancy.was achieved since the Unit 1 and Unit 2 service air headers had manual cross connect capability on the 112' elevation but not on the 228' level of the refueling floor.

The FSAR states that interconnected drains behind the' stainless steel fuel pool liner will prevent uncontrolled loss of contaminated fuel pool- water to other

.relatively clean areas within secondary containment. GPC stated that this FSAR commitment only ap p aied to the fuel pools, not the. transfer canal.

GPC made the point that the loss of water from the fuel pool was a spill, not' an unmonitored release, since. all the contaminated-water remained on the plant .

site until properly processed through the' radwaste system and properly dischargea.

GPC agreed that there were personnel errors committed and that there were procedural problems contributing to the event and that corrective _ action in the fonn of personnel discipline and procedure changes had been taken.

-The questions of the adequacy of the seal and air _ supply' design and of the applicability of the FSAR section on fuel pool liner leakage detection and water; containment will be the subject of further NRC review.

The NRC appreciated the quality and frankness of the GPC presentation.

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F ENCLOSURE 2 MEETING ATTENDEES U.S. Nuclear Regulatory Commission J. N. Grace, Regional Administrator J. Lieberman, Assistant General . Counsel for Enforcement V. L. Brownlee, Chief, Reactor Projects Branch 2, DRP F. S. Cantrell, Section Chief, Reactor Projects Section 2B, DRP M. B. Shymlock, Operational Programs Section Chief, Division of Reactor Safety P. Holmes-Ray, Senior Resident Inspector, Hatch Georgia Power Company J. P. O'Reilly, Senior Vice President, Nuclear Operations J. T. Beckham, Vice President, Plant Hatch L. T. Gucwa, Manager, Nuclear Safety and Licensing D. S. Read, Plant Support Manager, Plant Hatch

- P. R. Bemis, Manager Engineering Liaison E. M. Howard, Manager Emergency Preparedness S. C. Ewald, Radiological Safety Manager R. D. Baker, Nuclear Licensing Manager, Hatch, Corporate A. H. Domby, Legal Council l

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ENCLOSURE 3 G3C/\RCVE-~~\G TU E_ "RANSTER CAN A_

JA\UARY 22, ' 987 AGE \ JA

l. OPENING REMARKS J. P. O'REILLY ll. EVENT

SUMMARY

J. T. BECKHAM, JR.

Ill. GPC RESPONSE TO EVENT J. T. BECKHAM, JR.

IV. S. C. EWALD RAD / ENVIRONMENTAL SIGNIFICANCE V. SAFELY / REGULATORY DESIGN BASISL.T. GUCWA VI. SYSTEM DESIGN P. R. BEMIS Vll. INCIDENT REVIEW D. S. READ Vill. CONCLUSION J. P. O'REILLY

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l EVE N~ J ESC R 3-~ 0 \ l

• STATUS OF UNITS

• AIR PRESSURE REGULATOR FAILS

• valve to transfer canal seals partially closed

• AIR SUPPLY VALVE CLOSED e PERIODIC REPLENISHMENT OF FUEL POOL WATER

• CAUSE OF LEVEL DECREASE INVESTIGATED AND IDENTIFIED e AIR SUPPLY VALVE OPENED- REESTABLISHING AIR TO SEALS

• INCIDENT MITIGATION ACTIVITIES UNDERTAKEN

• management notified and involved

• NRC/ government agencies notified

- spill contained

• cleanup activities undertaken EVENT RESPONSE EXCELLENT l

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Ce EVE \~~ \ 0~~ ~ CA~~ 0 \ S

• PROMPT NOTIFICATIONS TO NRC e STATE AND LOCAL AGENCIES NOTIFIED AND PERIODICALLY UPDATED e CLOSE COOPERATION BETWEEN GPC AND AGENCIES e FIELD EVALUATIONS COORDINATED TIMELY NOTIFICATION AND i

UPDATES PROVIDED Ac2-2 l

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• EXECUTIVE MANAGEMENT INVOLVEMENT EARLY IN EVENT

• President

• Executive Vice President

• Senior Vice President

• Vice President Plant Hatch e CORPORATE COMMITMENT TO MITIGATE WITH FULL AUTHORITY GIVEN TO SITE VICE PRESIDENT e PLANT / CORPORATE EMERGENCY CENTERS ACTIVATED EARLY AND MANNED AROUND THE CLOCK l

e CONSULTANTS BROUGHT IN EARLY IN EVENT CORPORATE INVOLVEMENT AT HIGHEST LEVELS  !

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I m E_ RA\ STER CA\A_

SAP \G e INVESTIGATIVE

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- Concentrations

• FOOTPRINT

• Perimeter

• Cleanup Scope

• CLEANUP

- Migration

• Results

• ROUTINE / AUGMENTED

- Composite Water

• Sediment l

1 FUEL TRANSFER CANAL FLOWPATH  :

i FUEL POOL 426 mci 1 r h_

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• • • NO RELEASE ***

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• No Offsite Impact

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SATE ~Y/ REG_A~ORY JES G\ 3AS S l e DESIGNED IN CONFORMANCE WITH REGULATORY REQUIREMENTS

• DESIGNED APPROPRIATELY FOR ITS FUNCTION AND SAFETY SIGNIFICANCE e MEETS NRC SAFETY GUIDE 13 WHICH IMPLEMENTS GDC 61 e MEETS FSAR COMMITMENTS DESIGN MEETS NRC AND FSAR REQUIREMENTS LTC)

SA E~~Y/ REG XORY JES G\ 3AS S l

• REVIEWED THE SAFETY CLASSIFICATION

• Appendix A to 10 CFR Part 100

- Regulatory Guide 1.26

• REVIEWED THE ACTUAL DESIGN AND INDUSTRY PRACTICES

• SEALS ARE NOT SAFETY-RELATED e THOSE PORTIONS OF SAFETY-REl.ATED STRUCTURES, SYSTEMS, AND COMPONENTS FUNCTIONED PROPERLY AND AS-DESIGNED PROPER SAFETY CLASSIFICATIONS l --

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\C JE\~ REV EW 30ARJ e ESTABLISHED BY GPC e SENIOR MANAGERS l

• REVIEW

• ISEG investigation i

• environmental protection

• engineering efforts

- recovery plans t

i e COMPREHENSIVE FORMAL REPORT

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CORREC VE AC 0\S 70 R JE\~ r EJ 3R03_EVS e AIR SUPPLY OPERATION (regulator & ball valve)

- revised DR procedure

- in PE0 inspection procedures

• operator discipline

• valves tagged

• LEAK DETECTOR OPERATION

• revised procedures

- engineering review during replacement .

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CORREC VE AC 0\S 70 R JE\~ r EJ 3R03_EVS e TRANSFER CANAL SEAL OPERATION

• redundant air to seal system

> normal seal replacement

• further engineering evaluation t-e ADMINISTRATIVE CONTROLS

• DR procedure

> procedure upgrade (calibration, annunciators)

• shift turn-over

- discipline

• fuel pool level APPROPRIATE MANAGEMENT CONTROLS IN PLACE Ar3

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