ML15218A246

Confirms Verbal Granting of Temporary Waiver of Compliance from Requirement of Tech Spec 3.6.3c to Allow Intermittent Use of Penetration 39 to Charge B Core Flood Tank

ML15218A246
Person / Time
Site:	Oconee
Issue date:	10/05/1989
From:	Lainas G Office of Nuclear Reactor Regulation
To:	Tucker H DUKE POWER CO.
References
NUDOCS 8910170070
Download: ML15218A246 (5)

Text

October 5, 1989 Docket Nos.

50-270 and 50-287 Mr. H. B. Tucker, Vice President Nuclear Production Department Duke Power Company 422 South Church Street Charlotte, North Carolina 28242

SUBJECT:

TEMPORARY WAIVER OF COMPLIANCE - OCONEE NUCLEAR STATION, UNITS 2 AND 3 By letter dated September 29, 1989, you requested an emergency Technical Specification (TS) change which would add a note to TS Table 4.4-1, specifying when integrated (Type A) and local (Type C) leak rate testing becomes applicable for containment penetration 53.

The TS change also modifies Table 4.4-1 to reflect the requirement to perform Type C testing of this penetration. You subsequently informed us in a letter dated October 4, 1989, that maintenance had been performed on boundary valves for containment penetration 39 without the performance of required post-maintenance leak rate testing for Oconee Units 2 and 3. Your letter requested that the proposed TS change be revised to require the same leak rate testing for penetration 39 as for penetration 53.

The current TS requires isolation of penetration 39 in order to continue plant operation. However, intermittent use of this penetration is required during plant operation to charge the B core flood tank with nitrogen.

This emergency TS change is required to continue operation of Units 2 and 3.

We have reviewed your evaluation and the justification, including compensatory actions, provided in your submittal and find them acceptable. This letter confirms the verbal granting of a temporary waiver of compliance from the requirement of TS 3.6.3c to allow intermittent use of penetration 39 to charge the 8 core flood tank. This temporary waiver of compliance will be in effect while the staff completes the processing of your emergency change request. Proposed TS pages 4.4-9, 4.4-10 and 4.4-13 are enclosed for your information.

Distribution:

Sincerely, lktFe OGC (info, only)

NRC & Local PDRs E. Jordan original signed by:

PDII-3 R/F B. Grimes S. Varga ACRS (10)

G. Lainas Oconee Plant File Gus C. Lainas, Assistant Director D. Matthews ADR2 R/F for Region II Reactors R. Ingram Division of Reactor Projects -

I/II L. Wiens Office of Nuclear Reactor Regulation

Enclosures:

As stated cc w/encl:

See next page AM:DR2~ DR/Fj D~DP

.[OCONEE 2/3 WAIVER3 au CLantWiens:sa DMatDhews GLt Daas 6/fo /Regio/89 I9 Reacto

'JvJ 6910170070 991005 PDR ADOCK 0 15000270 PNU

Mr. H. B. Tucker Oconte Nuclear Station Duke Power Company Units Nos. 1, 2 and 3 cc:

Mr. A. V. Carr, Esq.

Mr. Paul Guill Duke Power Company Duke Power Company P. 0. Box 33189 Post Office Box 33189 422 South Church Street 422 South Church Street Charlotte, North Carolina 28242 CharlottE, North Carolina 28242 J. Michael McGarry, III, Esq.

Bishop, Cook, Purcell & Reynolds Mr. Alan R. Herdt, Chief 1400 L Street, N.W.

Project Branch #3 Washington, D.C. 20005 U.S. Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Mr. Robert B. Borsum Atlanta, Georgia 30323 Babcock & Wilcox Nuclear Power Division Ms. Karen E. Long Suite 525 Assistant Attorney General 1700 Rockville Pike N. C. Department of Justice Rockville, Maryland 20852 P.O. Box 629 Raleigh, North Carolina 27602 Manager, LIS NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 34623-1693 Senior Resident Inspector U.S. Nuclear Regulatory Commission Route 2, Box 610 Seneca, South Carolina 29678 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina 27603 County Supervisor of Oconee County Walhalla, South Carolina 29621

TABLE 4.4-1 LIST OF PENETRATIONS WITH 10CFR5O APPENDIX J TEST REQUIREmNs PENETRATION

.TYPE A NUMBER SYSTEM SYSTEM CONDITION

LCAL LEAK TEST 36 RB emergency Not Vented None required Note 5 37 sump recirculation line 38 Quench tank Note 1 y

cooler inlet line Type C Note 2, 7d, 12 39 HP Nitrogen supply Note 1 a IType C

Note 3 (manual valvee) 13

.(Unit 2, 3 CFT Vent line Note I None required only)

Note (manual valves) 40 RB emergency Note 1 None required sump drain line 41 Instrument air Note 1 None required Note 3 (manual valves) supply 6 ILRT verification line 42 RB H2 Analyzer Note 1 Tr2 Type C Note 7c Train I 43 OTSC A Note I None required Note 7b drain line 44 Component cooling Note I Type C Note 3. 7d to control rod drive Inlet line 45 ILRT instrument Not Vented Type C Note 3, 7a line 46 Reactor head-wash Note 1 Type C Note 3, 6 (manual valves) filtered water inlet

TABLE 4.4-1 LIST OF PENETRATIONS WITH IGCFR50, APPENDIX J TEST REQUIREHENTS PENETRATION TYPE A TEST NUMBER SYSTEN SYSTEM CONDITION LOCAL LEAK TEST REMARKS 47 (Unit I Demineralized water Note I Type C Note 3, 7d only) supply to RC pump seal vents 48 Breathing air Note I None required Note 3 (manual valves) inlet 49 (Unit I LP Nitrogen supply Note I None required Note 3 (manual valves) only) 50 OTSG A Emergency Not Vented None required Note 5 FDW line 51 ILRT Pressurization Note I None required Note 6a, 7a line 52 HP Injection to Not Vented None required Note 5

'B' loop 53 (All)

IIP Nitrogen supply Note 1 Type C Note 3 (manual valves),

13 to 'A' core flood tank (Unit 2, 3) LP Nitrogen supply Note 2 None required Note 3 (manual valves) 54 Component Note I Type C Note 3, 7b, 9(8) cooling outlet line 55 Demineralized Note I Type C (Unit 1) Note 3, (manual valves), 12 water supply (Unit 2,3) Note 3, 9 (manual valves) 56 Spent fuel canal Note I None required Note 3 (manual valve) fill and drain 57 (Unit 1 DIIR return Not Vented None required Note 4 Y)A

TABLE 4.4-1 NOTES (continued)

c.

Isolation valves are required to operate intermittently under post accident conditions.

d.

Check valves used for containment isolation.

NOTE 8 DELETED NOTE 9 Reverse direction test of inside containmenL isolation valve authorized.

Leakage results are conservative.

NOTE 10 System is submerged during post-accident conditions and performance of Type A test. System will be drained to the extent possible.

NOTE 11 Type B test performed on the blind flanges inside the Reactor Building. The tube drain valves and valves outside the containment are not tested.

t1 N

12A one-time extension from the local leak test and corresponding exemption from Sections III.D.2 and II.D.3 of Appendix J to 10 CFR Part 50 is granted such that it be performed during the 1983 Unit 1 refueling outage, provided that such outage begins no later than July 16, 1983.

NOTE 13 The requirements to perform a Type A test in accordance with Notes 1 and 3 of Table 4.4-1, will dommence during the end of cycle 12 refueling outage on Unit 1, and during the end of cycle 11 refueling outages on Units 2 and 3. For the Type C test, the initial test will be performed on Unit 1 during the end of cycle 12 refueling outage, on Unit 2 no later than January 15, 1990, and during the end of cycle 11 refueling outage on Unit 3. On Units 2 and 3, until Type C testing is performed, these penetrations may be utilized provided that compensatory measures described in W. H. Owen's September 29, 1989 letter and H. B. Tucker's October 4, 1989 letter are implemented.