ML20134G538
| ML20134G538 | |
| Person / Time | |
|---|---|
| Site: | 05000134 |
| Issue date: | 08/20/1985 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20134G516 | List: |
| References | |
| NUDOCS 8508260295 | |
| Download: ML20134G538 (3) | |
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paart 8 kg UNITED STATES NUCLEAR REGULATORY COMMISSION
, L 5j WASHINGTON, D. C. 20S55
\...../ .w SAFETY EVALUATION BY THE .
e-0FFICE OF NUCLEAR REACTOR REGULATION -
SUPPORTING AMEP:DMEFT NO. 8 TO FACILITY LICENSE R-61 WORCESTER POLYTECHNIC INSTITUTE (WPI)
DOCKET NO. 50-134 Introduction 7, . By letter dated September 8,1983, as supplemented July 26, 1984, Worcester Polytechnic Institute (WPI) requested a change to their existing Technical
. Specifications permitting the use of portable survey instruments with a less sensitive range than those presently specified in their Technical Specifications.
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- Existing Technical Specifications require that the portable survey meter in the
' control roon area have a range of 0.01 mrem /hr to 50 mrem /hr. WPI has requested 3e to change that portable survey instrument range to 1 mren/hr to 50 rem /hr.
Other portable survey instruments located outside the reactor room had ranges from 2 mrem /hr to 50 mrem /hr. WPI wishes to replace those with portable survey instruments with ranges of 10 mrem /hr to 50 rem /hr.
Evaluation Existing installed area radiation sensors that are capable of detecting I~ ganrla radiation in the range of 0.I nrem/hr to 100 mrem /hr are located near,.
points of potential radiation sources, such as above the core pool surface,
, . beam port, thennal columydemineralizer, etc. These radiation detectors p ., --:
-actuate alarms when levels exceed 50 mrem /hr or 20 mrem total in the fuel- ,
storage, area. -
The WPI wishes to utilize portable survey instruments (1) in the control
--' room area that have a range of 1.0 mrem /hr to 50 rem /hr, and (2) in an external area that have a range of 10 mren/hr to 50 rem /hr. -
Inasmuch as the installed reactor room radiatinn survey instrumentation is capable of reading levels in the range 0.01 mrem /hr to 50 mrem /hr, the staff acknowledges that portable instrunentation should be utilized for follow-up surveys in the event the radiation alarns are actuated. The staff, therefore, concurs with the WPI scale changes to the portable survey instrurents.
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The staff concurs with WP! that the portable survey instrument hith a proposed range of 10 err /hr to 50 rem /hr is more realistic thes the currently specified rar ' 2 mrem /hr - 50 mrem /hr. The exist 9ng low range requirements woule nbeblindedbyanincidentthatreJultedina release of significant fission products. -
85082602*5 85cS2O PDR ADO:n 03 GOO 134 P PDR
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Environmental Consideration ;
i This amendment involves changes in the installation or use of facil.ity l components located within the restricted area as defined in 10 CfR Part 20 l and changes in inspection and surveillance reouirements. The staff has determined that the amendment involves no significant hazards consideration (as discussed below), there is no sionificant change in the types, or significant increase in the amounts, of any effluents that may be released offsite, and there is no significant increase in individual or cunulative or.cupational radiation exposure. Accordingly, this amendment meets the eligibility criteria for catecorical exclusion set forth in 10 CFR 51.22(c)(0). Pursuant to 10 CFR 51.??(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of this amendment.
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Conclusion The staff has concluded, based on the considerations discussed above, that:
(1) because the amendment does not involve a significant increase in the
- probability or consequences of accidents previously evaluated, does not o ar ~- , create the possibility of a new or different kind of accident from any
.. accident previously evaluated, ard does not involve a si: 'ficant reduction in a safety naroin consideration, (2),the amendment there dcesassuranct is reast-a"le not irvc f Jo
- 3tathe signi :: antand realth hazards safety of the public will not be enden;s er by the prrr :=d actd sities, and (3) such activities will be conducte t- -'071ance with the Commission's regulations and the issuance of -
,m "ent v'D --t te inimici to the common d 'ense and sec.-ity or tre r- and sa cf the public.
Principal Contributor: Harald Bernarc
. .' .l: Dated: August ~1,1985 a T_
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IIorcester Polytechnic Institute Docket No. 50-134
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cc: Mayer of the City of Worcester _
Worcester, Massachusetts 01601 Francis J. McGrath City Manager Worcester, Massachusetts 01608 Office of the Attorney General Environnental Protection Division
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19th Floor
. One Ashburton Place
-- Boston, Massachusetts 02180 Department of Environmental Quality Engineering
- 100 Cambridge Street
,. Boston, Massachusetts 02180
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