ML18018B715

Forwards Addl Info Re Leak Reduction Program in Response to SER Open Item 14(f)

ML18018B715
Person / Time
Site:	Harris
Issue date:	07/11/1984
From:	Zimmerman S CAROLINA POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
TASK-3.D.1.1, TASK-TM NLS-84-294, NUDOCS 8407170187
Download: ML18018B715 (8)

Text

REGULATOR INFORMATION DISTRIBUTION TEM (RIDS)

ACCESSION NBRe8007170187 . DOC DATES 8'/07/11

~ NOTARIZED: NO DOCKET FACIL:50-r400 Shearon Harris Nuclear Power Plantr Unit 1< Carolina 05000r400 AUTH NAME

~ AUTHOR AFF ILIATION ZIMMERMANrS,R. Carolina Power 8 Light Co, RECIP,NAME RECIPIENT AFFILIATION DENTON,H,R, Office of Nuclear Reactor Regulationr Director

SUBJECT:

Forwards addi info re leak reduction program response to NOTES'n SER REC open, Item 10 DISTRIBUTION CODE: 8001S TITLE: Licensing Submittal: PSAR/FSAR Amdts IP IENT IO CODE/NAME (f) ~

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@ME Carolina Power & Light Company SERIAL: NLS-84-294 JUL 11 )984 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 DOCKET NO>> 50-400 LEAK REDUCTION PROGRAM

Dear Mr. Denton:

Carolina Power 6 fight Company (CP&L) hereby submits additional information concerning the Shearon Harris Nuclear Power Plant Leak Reduction Program.

This information is in response to Safety Evaluation Report (SER) Open Item 14(f) from the Meteorology and Effluent Treatment Systems Branch.

If you have further questions or require additional information, please feel free to contact me.

Yours very truly, S. R. mmerman anager Nuclear Licensing Section ESS/pgp (292NLU)

Attachment cc: Mr. B. C. Buckley (NRC) Mr. Wells Eddleman Mr. G. F. Maxwell (NRC-SHNPP) Mr. John D. Runkle Mr. Charles Willis (NRC-METB) Dr. Richard D. Wilson Mr. J. P. O'Reilly (NRC-RII) Mr. G. O. Bright (ASLB)

Mr. Travis Payne (KUDZU) Dr. J. H. Carpenter (ASLB)

Mr. Daniel F. Read (CHANGE/ELP) Mr. J. L. Kelley (ASLB)

Chapel Hill Public Library Wake County Public Library 8407170187 840711 PDR ADOCK E

05000400 PDR 411 Fayetteville Street o P. O. Box 1551 o Raleigh. N. C. 27602

~, 4aa H

II

Shearon Harris Nuclear Power Plant SER Open Item 14(f)

TMI Action Plan Item III.D.1.1 Leak Reduction Pro ram

~Oen Isee The gaseous waste processing system, the seal water return system, the demineralizers in the chemical and volume control system, the boron recycle system, the filter backwash system, and the fuel pool cooling and cleanup system are not included in the current leak reduction program proposed by CP&L. In addition, the SER stated that initial leak reduction program test results must be submitted to the NRC at least four months prior to fuel load.

~Res ense:

CP&L's leak reduction program was submitted to the NRC by a letter dated September 21, 1983. CP&L will supplement this leak reduction program to include the following components:

Gaseous Waste Processing System Seal Mater Return System Demineralizers in the Chemical and Volume Control System CP&L has reviewed its position on the other items and has determined that the following items do not belong in the III.D.1.1. leak reduction program for the reasons stated:

Boron Rec cle S stem This system is batch operated. Effluent is received from the CVCS system into two 84,000 gallon recycle holdup tanks (RHT). The transfer of effluent from the RHT will not occur during the post accident phase. Treatment of the effluent in the RHT will not occur until the recovery phase, well after the post-accident phase. Actions at that time can be thoroughly planned and deliberate.

Therefore, although we will include the RHT in the leak reduction program, the balance of the system need not be.

Fuel Pool Coolin and Cleanu S stem The SER stated that this system should be leak tested to minimize leakage that might occur during a serious transient or accident (i.e. fuel handling accident). The system is used to maintain water quality in the fuel pools and as such can reduce the contamination present in the fuel pools. However, the fuel pools do not have a significant inventory of radioactive material following a fuel handling accident since all noble gases are assumed to escape from the pool surface. This postulated accident, even when conservatively analyzed contributes only .02 microcuries of iodine per gram to the activity of the water. CP&L does not consider this to represent a highly contaminated system, especially within the context of TMI Item III.D.1.1.

(292NLU/ccc)

We conclude that this system need not be included in the leak reduction program.

Filter Backwash S stem The filter backwash system is designed to collect materials back flushed from the filters within systems such as the chemical and volume control system.

Filters which are part of systems included in the leak reduction program will be included in the boundary subject to the leak reduction program. Such filters are not in service during safety injection or recirculation and can be manually bypassed in the event the pressure drop becomes too great or during flushing operations. The back flushing portions of the system are operated manually and the back flushing alignment exists for only short periods of time. Backflushing is not likely to occur following an accident since it would only tend to spread contamination. Therefore, CP&L concludes that this system does not need to be included in the leak reduction program.

None of these systems are required by NUREG 0737 Item III.D.1.1 to be included in the leak reduction program, and CP&L believes that no significant benefit would be derived from their inclusion.

Submittal Re uirements CP&L requests that the leak test results submittal requirement of "four months prior to fuel load" be reduced to "two months prior to fuel load." The four month requirement will prevent orderly coordination with other testing that will be taking place at that time. A two month requirement will allow orderly coordination with other requirements.

(292NLU/ccc)

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