ML20245A357
| ML20245A357 | |
| Person / Time | |
|---|---|
| Issue date: | 08/05/1986 |
| From: | Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Jordan E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| Shared Package | |
| ML20244D710 | List:
|
| References | |
| TAC-52665, NUDOCS 8703200182 | |
| Download: ML20245A357 (2) | |
Text
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Ref. 5 UNITED STATES
- / y necs%,
! "% NUCLEAR REGULATORY COMMISSION REGION V
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,I 1450 M ARLA LANE sVITE 210
- ' ' WuALNUT CREEK, CALIFORNIA 94596
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1 AUG5 1985 MEMORANDUM TOR:
Edward L. Jordon, Director Division of Emergency Preparedness and Engineering Response FROM:
Dennis F. Kirsch, Director Division of Reactor Safety and Projects
SUBJECT:
CONTAINMENT INTEGRATED LEAK RATE TESTINC (CILRT)
Review of internal NRC correspondence and discussions with both NRC and licensee personnel indicar.es that confusion exists 10 CFR concerning 50, Appendix theJ.present acceptable methods for conducting CILRT'S.
Section III.A.3(a) requires that testing be performed in accordance with This standard requires the use of the " point-to-point" ANSI N45.4-1972. A third method, the " mass point" method, apparently or " total time" methods.
is widely used by the industry, often in parallel with one of the other two methods, and is generally considered to be a more accurate test, however, the mass point method is not recognized by present NRC regulations. .
By memorandum dated April 1, 1986, Darrell Eisenhut to James Partlow, (Enclosure 1) NRP, stated that the mass point method may be used while NRC is considering a revision to Appendix J which would recognize that method. However, by memorandum dated July 16, 1986, W. Olmstead to G. Arlotto, (Enclosure 2) of the Office of the General Counsel stated that, as the regulations are presen*1y written, the mass point metLod cannot be accepted by NRC as a va12% CILRT, unless a specif!c exemption is granted to a licensee pursuant to 10 CFR 50.12.
In Region V, an example of where confusion concerning testing requirements has brought into doubt the acceptability of a completed test is the Trojan facility. The CILRT performed in early June, 1986, utilized the mass point With the mass point method, the results of the test and total time methods. Using the total time method, as were well within the acceptance limits.the leakage rate was determined to be required by ANSI N45.4-1972, within acceptance criteria, however, the upper confidence level (UCL) was greater than acceptance criteria. Region doesVnot presently considers require the determin& the tion test satisfactory because ANSI N45.4-1972 of a UCL, however, the overall confusion concerning acceptable methods for performing CILRTS significantly increased the difficulty in assessing the test results at Trojan.
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Edward I.. Jordon' .
via an information notice the acceptab3e methods for conduc pending revision of Appendix J and recognition of the testing method massispoint method.
This information notice should also address what acceptable when conflicts occur between Appendix J requirements, technical specification requirements, and statements contained ainshort the PSAR of a duration facility; and what constitutes agreement by the NRC that
- test is acceptable as discussed in paragraph 7.6 of ANSI N45.4-1972.
463-3741, should any questions arise Ficase contact Mr. Clifford Clark, FTS in this area.
' Dennis F. K rsch, irector Division of Reactor Safety and Projects
Enclosures:
- 1. Memo from D. Eisenhut to J. Partlow, dated 4/1/66
- 2. Meco from k'. Olmstead to G. Arlotto, dated 7/16/86 cc w/ enclosures (1) and (2):
Hugh L. Thompson, Jr. , Pk'RA '
C. E. Rossi, Pk'RA James G. Partlov, IP G. A. Arlotto, DET B. E. Paulkenberry, RV I
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