ML20054J648
| ML20054J648 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 06/24/1982 |
| From: | Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Brons J POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| References | |
| NUDOCS 8206290381 | |
| Download: ML20054J648 (2) | |
Text
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2 4 J U:t iia l Docket No.
50-286 Power Authority of the State of New York Indian Point 3 Nuclear Power Plant ATTN: Mr. J. C. Brons Resident Manager P. O. Box 215 Buchanan, New York 10511 Gentlemen:
Subject:
Leaking Detectors Containing Nickel-63 Thank you for your letter, dated February 4,1982, which forwarde i a final report pursuant to 10 CFR 31.5(c)(5) regarding the subject matter.
l We have previous reports of this problem and a resolution is being pursued with the device manufacturer.
Your cooperation with us is appreciated.
Sincerely, ori-r
-.,9 3.g Thomas T. Martin, Director Division of Engineering and Technical Programs cc:
L. W. Sinclair, President and Chief Operating Officer J. P. Bayne, Senior Vice President-Nuclear Generation C. M. Pratt, Assistant General Counsel A. Klausmann, Vice President - Quality Assurance D. Halama, Quality Assurance Superintendent G. M. Wilverding, Chairman, Safety Review Committee K. Burke, Director, Regulatory Affairs (Con Ed)
J. Thoma, Project Manager Public Document Room (PDR) local Public Document Room (LPDR) l Nuclear Safety Information Center (NSIC)
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State of New York NRC Resident Inspector l
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February 4, 1982 IP-RL-224 Mr. Ronald C. Haynes, Regional Administrator Office of Inspection and Enforcement Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406
Dear Sir:
Pursuant with the requirements of 10CFR31.5, Paragraph 5, we are notifying you of receipt of radioactive materials that indicated greater' than 0.005 micro curies of smearable, gross beta contamination.
On December 8, 1981, an arrival survey was performed on three spare explosive monitor detector cells manufactured by Ion Track Instruments, Inc.
Detector #23942 indicated 0.0117 micro curies gross beta contam-ination, using an open window gas flow proportional detector. The other two detectors, #23940 and #23944, had elevated contamination levels that were belc;w the notification limits. No contamination was detected on the r
I external surfaces of the individually-sealed plastic bags the devicbs were shipped in.
The manufacturer, Ion Track Instruments, Inc., was notified of the results and maintains that the contaminated smears were taken in a nor-mally inaccessible location.
Ion Track Instruments, Inc. states that based on the location of the smear, this type of indication is normal, and the NRC does not consider this to be a reportable occurrence.
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Since the smear measurements were taken on a gross beta detector not calibrated for Ni-63, the smears were sent to Teledyne Isotopes, Inc. for verification of results. The smears from detector numbers 23942 and 23940 indicated 2.0 f;0.2 E-02 and 1.2 f;0.1 E-02 micro curies of Ni-63, respectively. These results were received on 1/6/82.
All three detectors were removed from the warehouse, sealed and stored in an approved location.
The manufacturer has approved return of the devices for inspection and repair.
Sincerely,
- tfw John C. Brons Resident Manager RL:pw cc: Resident Inspector, T. Kenny Acting Chief Indian Point, W. Baunack t
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