ML20128Q401

Forwards Request for Addl Info in Response to Submitted for Proposed License Amend to Extend Interval for Drywell Bypass Leakage Test from 18 Months to 10 Years

ML20128Q401
Person / Time
Site:	Perry
Issue date:	10/16/1996
From:	Hopkins J NRC (Affiliation Not Assigned)
To:	Myers L CENTERIOR ENERGY
References
TAC-M94493, NUDOCS 9610210054
Download: ML20128Q401 (3)

Text

.....-- - . - - - --

October 16, 1996  !

' Distribution w/ enc 1:

Docket File OGC 5 PUBLIC RLobel l PD3-3 Reading JKudrick ACRS JRoe JCaldwell, Rill CBerlinger Mr. Lew W. Myers GGrant, RIII EAdensam (EGAl)

Vice President Nuclear - Perry LTran GMarcus Centerior Service Company P. O. Box 97, A200 4

Perry, OH 44081 1

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - DRYWELL BYPASS LEAKAGE TEST EXTENSION, PERRY NUCLEAR POWER PLANT, UNIT NO. 1 (TAC NO. M94493) i

Dear Mr. Myers:

l By letter dated January 16, 1996, you submitted a proposed license l amendment to extend the test interval for the drywell bypass leakage test from 4

18 sonths to 10 years for the Perry Nuclear Power Plant, Unit No.1. The NRC staff has performed an initial review of your submittal' and needs additional ,

information to complete its review. Please respond to the enclosed request l for additional information (RAI) within 45 days of receiving this letter.

Sincerely, 3

Original signed by

Jon B. Hopkins, Sr. Project Manager Project Directorate III-3 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-440 '

Enclosure:

RAI cc w/ enc 1: See next page  :

DOCUMENT NAME: G:\ PERRY \DRYWELL.RAI To tooelve e copy of this document, Indicate in the box:

• C" - Copy without enclosures *E' = Copy with enclosures *N* = No copy -

0FFICE PD33-LA E. PD33-PM lC NAME DFoster-Cursbeq JHopkins /V DATE 10//f /96 (sfN 10//[,/96 "//

OFF CIAL RECDRD COPY I 1800n1 NE HLE CENTER COPY 9610210054 961016 PDR ADOCK 05000440 P PDR

October 16, 1996  !

Distribution w/ encl:

Docket File OGC PUBLIC RLobel PD3-3 Reading JKudrick ACRS JRoe JCaldwell, RIII CBerlinger Mr. Lew W. Myers GGrant, RIII EAdensam (EGAl)

Vice President Nuclear - Perry LTran GMarcus Centerior Service Company P. O. Box 97, A200 Perry, OH 44081

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - DRYWELL BYPASS LEAKAGE TEST EXTENSION, PERRY NUCLEAR POWER PLANT, UNIT N0. 1 (TAC N0. M94493) l

Dear Mr. Myers:

l By letter dated January 16, 1996, you submitted a proposed license amendment to extend the test interval for the drywell bypass leakage test from 18 months to 10 years for the Perry Nuclear Power Plant, Unit No. 1. The NRC staff has performed an initial review of your submittal, and needs additional information to complete its review. Please respond to the enclosed request for additional information (RAI) within 45 days of receiving this letter.

Sincerely, Original signed by:

Jon B. Hopkins, Sr. Project Manager Project Directorate III-3 Division of Reactor Projects III/IV i Office of Nuclear Reactor Regulation Docket No. 50-440

Enclosure:

RAI j cc w/ encl: See next page DOCUMENT NAME: G:\ PERRY \DRYWELL.RAI To roosive a oepy of this document, inicate in the box:

'C' = Copy without enclosures *E" = Copy with enclosuree "N* = No copy 0FFICE PD33-LA l E. PD33-PM lC l NAME OFoster-CursVeq JHopkins /Vl DATE 10//f /96 ($f" 10//L,/96 "// l OFFICIAL RECORD COPY

i i

L. Myers Perry Nuclear Power Plant ..

Centerior Service Company Unit Nos. I and 2 CC

Mr. James W. Harris, Director Jay E. Silberg, Esq. Division of Power Generation

Shaw, Pittman, Potts & Trowbridge Ohio Dept. of Industrial Relations

2300 N Street, N. W. P.O. Box 825

Washington, D. C. 2C037 Columbus, 0hio 43216 2

Ms. Mary E. O'Reilly The Honorable Lawrence Logan Centerior Energy Corporation Mayor, Villa 3e of Perry i 300 Madison Avenue 4203 Harper Street Toledo, Ohio 43652 Perry, Ohio 44081 i

Resident Inspector's Office The Honorable Robert V. Orosz U. S. Nuclear Regulatory Commission Mayor, Village of North Perry

) Parmly at Center Road North Perry Village Hall Perry, Ohio 44081 4778 Lockwood Road

North Perry Village, Ohio 44081 i Regional Administrator, Region III U. S. Nuclear Regulatory Commission Attorney General l 801 Warrenville Road Department of Attorney General

Lisle, Illinois 60532-4531 30 East Broad Street

Columbus, Ohio 43216 Lake County Prosecu_ tor Lake County Administration Bldg. Radiological Health Program

, 105 Main Street Ohio Department of Health Painesville, Ohio 44077 P.O. Box 118

Columbus, Ohio 43266-0118 j_ Ms. Sue Hiatt OCRE Interim Representative Ohio Environmental Protection 8275 Munson Agency

Mentor, Ohio 44060 DERR--Compliance Unit ATTN

Mr. Zack A. Clayton Terry J. Lodge, Esq. P.O. Box 1049 618 N. Michigan Street, Suite 105 Columbus, Ohio 43266-0149 l Toledo, Ohio 43624

Mr. Thomas Haas, Chairman i

Ashtabula County Prosecutor Perry Township Board of Trustees 25 West Jefferson Street 3750 Center Rd., Box 65 Jefferson, Ohio 44047 Perry, Ohio 44081 i'

Mr. James D. Kloosterman State of Ohio i Regulatory Affairs Manager Public Utilities Commission

! Cleveland Electric Illuminating East Broad Street j Company Columbus, Ohio 43266-0573 Perry Nuclear Power Plant j P. O. Box 97, E-210 Mr. Richard D. Brandt, Plant Manager j Perry, Ohio 44081 Cleveland Electric Illuminating Company Mr. James R. Williams Perry Nuclear Power Plant 4

Chief of Staff P.O. Box 97, SB306

! Ohio Emergency Management Agency Perry, Ohio 44081 1 2855 West Dublin Granville Road l

Columbus, Ohio 43235-2206 I

l a- . .

REQUEST FOR ADDITIONAL INFORMATION PERRY NVCLEAR POWER PLANT DRYWELL LEAK RATE TESTING 1

1. Page 7 of Attachment I to the January 16, 1996, submittal states that g leakage was identified past " boot seals" that are installed in the annular space between the safety relief valve discharge lines and the drywell wall. The submittal states that short-term action was to replace leaking seals. The submittal also stated that longer term action were being considered. Please discuss the status of this issue. Have the leaking seals been replaced? What longer term actions have been taken or are planned?

h 2. Table 2 shows that two tests were performed in 1994 with leakage rates of more than an order of magnitude difference. Discuss why two tests were run one month apart and the reasons for the difference between the leakage rate test results.

3. Provide a list of all drywell isolation valves. Provide diameters of the valves. Indicate which valves close automatically on indication of a LOCA and which valves are locked closed when drywell integrity is required. Indicate which valves have position indications in the control room. For those valves which have neither automatic isolation or are not locked closed, what assurance is there that the valves will be shut if a LOCA occurs? Can it be demonstrated that all valves below a certain diameter can be open during a LOCA without exceeding the design basis A//K? If relevant material is in the UFSAR, a reference is sufficient.

4. Provide a commitment to perform a qualitative assessment at least once per operating cycle and specify the method to be used. The licensee should determine and the commitment should state that the method will provide reasonable assurance of the ability of the drywell to perform its design basis pressure suppression function, that is, that the drywell is operable.

5. (a) Describe the procedures that are used to assure that, followis' a refueling outage or any other outage during which the drywell may be opan, that all penetrations are properly isolated, and that no damage has been done, for example, to seals or valves which could cause excessive leakage.

(b) Specifically discuss the drywell equipment hatch. What assurance is there, if no drywell bypass leakage rate test is performed, that the drywell equipment hatch is not leaking excessively?

6. Demonstrate, if possible, that one purge valve can be left open without exceeding the containment failure pressure.

7. What requirements are there for leakage rate testing of the drywell after modifications to the drywell structure or penetrations?

Enclosure

..