ML20078R586

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Proposes Rev of TS to Require Sampling of Secondary Coolant Sys for Radioactivity (TS 4.3.b) on Weekly Basis & Deletion of Requirement for Secondary Radiation Detector,Per Discussion W/Nrc.Revised TS Page 42 Encl
ML20078R586
Person / Time
Site: Rhode Island Atomic Energy Commission
Issue date: 12/14/1994
From: Tehan T
RHODE ISLAND, STATE OF
To: Mendonca M
Office of Nuclear Reactor Regulation
Shared Package
ML20078R589 List:
References
NUDOCS 9412270110
Download: ML20078R586 (1)


Text

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STATE OF RHODE ISLAND AND PROVIDENCE PLANTATIONS j

R'HODE ISLAND ATOhflC ENERGY COhthilSSION Nuclear Science Center South Ferry Road Narragansett, R.I. 02882-1197 December 14, 1994 Mr. Marvin Mendonca, Senior Project Manager Non-Power Reactors, Decommissioning and Environmental Project Directorate Division of Reactor Projects - III/IV/V U.

S.

Nuclear Regulatory Commission Washington, DC 20555 License R-95 Docket No. 50-193

Dear Mr. Mendonca:

This letter concerns revision of the technical specifications to require sampling of the Secondary Coolant System for radioactivity (T.S.

4.3.b) on a weekly basis and delete the requirement for a secondary radiation detector.

After discussion with Mr.

Tom Dragoun of Region One and several reactor managers, it was determined that other facilities with open pool reactors similar to RINSC sample the secondary on a weekly or monthly basis.

The current requirement in the RINSC technical specifications requiring a radiation monitor in the cooling tower basin is not realistic or effective. This system has a high failure rate and has not provided an alarm even when sodium-24 was detected in the secondary system. Therefore, it is proposed that the second paragraph of the Bases section of page 42 be deleted and specifications 2 and 3 be changed to a new specification 2 as follows:

2.

A sample shall be drawn weekly and analyzed for sodium 24 activity, during reactor operation.

If there are any questions regarding this change, please call me at 401-789-9391.

Sincerely, bQ,o/l}'*%

Terry ahan Dire; tar TT: J Enclosure (revised page 42) cc: Tom Dragoon, Region One l

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