ML20155F521
| ML20155F521 | |
| Person / Time | |
|---|---|
| Site: | University of Utah |
| Issue date: | 11/02/1998 |
| From: | Slaughter D UTAH, UNIV. OF, SALT LAKE CITY, UT |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20155F526 | List: |
| References | |
| NUDOCS 9811060056 | |
| Download: ML20155F521 (2) | |
Text
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, . _ l Center for Excellencein '
' Nuclear Technology, Engineering, and Research a
November 2,1998 '
- Nuclear Regulatory Commission 4- 7 Document Control Desk
- -[ Washington, DC. -20555 1.
- .- RE
- Changes'to Technical Specifications of Lic, No. R-126
~
iDocument Control Center -
. In an inspection of the our 100 kW nuclear' reactor license no R-126, two confusing 1 m jy
. passages were pointed out that could be interrupted differently resulting in questions of- j compliance. , in order to climinate the confusion associated with these passages,'I propose '
,, to change the language in the Technical Specifications. The requested changes are listed I here followed by a summary of each proposed action and a brief analysis is provided to support the requested change.
^ i In addition, pages containing the existing version, identifying the needed changes, and containing the final version for approval follow this letter.
Y 1. Proposed _ Action:' change the word "biennual" to "a'nnually" in the specification
'section of the TS 4.3.3 Radiation Monitoring Systems (page 18).
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L Analysis: 'Ihe specification and basis sections for TS 4.3.3 indicate two different
' calibration schedules. A biannual calibration is written in the specification section while :
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. the basis section notes an annual calibration; Historically, we have done annual calibrations and we will continue that practice.
- 2. Pro MAction: change the language to indicate particulate collection is done in , h.
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- the ex3aust stack. TS 5.4 Radiation Monitoring System (page 23) . / [ ch a Analysis: This TS change replaces the present language with a more accurate description
-' - of our radiation stack monitonng system. Historically,. since the reactor went critical in 1975 particulate measurements have always been taken in the exhaust stack which is less F 4 then 10 feet away from the pool. Terms " pool room", reactor room, and crypt are used to define the rooms 1205e, f and g. In' addition, area radiation monitors located above and y 9 p; j
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1 E inext to the pool repmsent a system that is capable of detecting the presence of gamma
.. emitting particulates.
. In the current system, all air being discharged from the reactor room pass through HEPA filters. An exhaust sample, extracted from the down-stream side of the HEPA
- filter, is used to determine if any radioactive particulates am being mleased to the '
surroundings. This approach is more conservative then our past particulate monitoring and contml systems. ln the previous design, HEPA filters wem engaged only if a radiation or safety limit was mached. When the filter was engaged exhaust samples were extracted downstream matching the current set up. 'Again, this allows the facility personnel to estimate the release to the surroundings.
3 If there is any additionalinformation concerning my request that you may need, please do not hesitate to call me at (801) 581-8499.
.1 D' avid M. Slaughter.
Reactor Administrator and Supervisor. j cc: Marvin Mendonca, U.S. NRC 6
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