ML20113D575
| ML20113D575 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 01/02/1985 |
| From: | Brons J POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| To: | Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IP3-WDH-4000, NUDOCS 8501230146 | |
| Download: ML20113D575 (4) | |
Text
indien Point 3 Nucteer Power Plant P.O. Box 215 Buchanan, NewWrk 10511 914 739.8200
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& Authority January 2, 1985 IP3-WDH-4000 Docket No. 50-286 License No. DPR-64 Mr. Thomas T. Martin, Director Division of Engineering and Technical Programs U.S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, Pennsylvania 19406
SUBJECT:
INSPECTION NO. 50-286/84-10
Dear Mr. Martin:
This letter provides an update on several open items resulting from Inspection 84-10.
Inspection 84-10, conducted April 23-27, 1984 was a detailed review of the Post Accident Sampling System (PASS). As a result of this inspection there were many open items identified as either unresolved or items to be considered for improvement.
For the items identified as unresolved, commitment dates for completion were provided to the inspectors during the exit interview.
Items which are past the committed date are completed except for two. For the two remaining uncompleted items we are providing new commitment datra along with justification for the delay. Please see Attachment I to this letter.
Should you or your staff have any questions concerning this untter please contact Mr. W. Hamlin of my staf f.
Very truly yours, ne John C. Brons WDil:jmd Resident Manager Attachment I cc: Resident Inspector's Office O
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T Attachment I to Inspection 84-10 Response FINDING 84-10-01 Improve the system design to assure a representative hydrogen sample can be obtained through the expected range of hydrogen concentration and system pressures.
RESPONSE
In our response to Reg Guide 1.97 Rev. 2 (J. P. Bayne tc S. Varga June 29, 1984 IPN-84-20) we requested a deviation from the required range for measurement of dissolved hydrogen concentration and provided justification for a range of 0-200 cc/kg. This was based in part on the current ability of the sample analysis system which has an upper range of 200 cc/kg.
As a result of this inspection an evaluation was performed on the sample collection systems' ability to provide a dissolved hydrogen sample within the expected sample system pressures. It has been determined that a modification to the sample collection system is necessary. The current sample collection system is limited to 167 cc/kg.
It is' expected that necessary cample collection system modifications to meet the 200 cc/kg dissolved gas concentration within expected system pres-sures can be completed during the cycle 4/5 refueling outage.
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FINDING 84-10-03 Provide a Status-Report and schedule of actions, based'onlLine. Loss Study
.for the' containment air sampling lines by January 1, 1985.
STATUS REPORT:
A Line Loss Study has been performed during the February to October 1984 operating period. The data collected during this operating period is being analyzed to determine the most appropriate method'for line loss correction.
~ The Line Loss Study has been reinitiated to provide further information for the final report due June 1985.(NRC Finding 50-286/81-05'B-8).
' SCHEDULE OF ACTIONS:
- 1) " A-final report will be submitted to the IntC in ' June-1985 including actions to be taken to correct for system line losses.-
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Heat Trace is scheduled to'be installed on;,the vapor containment sampling system during the up coming; refueling outage.
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FINDING 84-10-01 Make provisions for observing the flow rate when the operator is outside of the stapling room, and determine the sampling line purge times based on an assessment of the line volume and flow rate.
RESPONSE
An evaluation was performed by the Authority to determine what is required to provide remote flow indication..The presently installed flow indicator is in a Class I-line. We have been unable to locate a " Category I" qualified flow meter with remote reading capabilities.
A commercially available turbine meter can be obtained and installed in place of the existing flow indicator assuming this line can be reclassified as Class II.
~ Problems associated with reclassification of this sample line are being investigated.
It is anticipated that this investigation and subsequent installation of a remote indicating flow meter can be completed by the cycle 5/6 refueling.
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