ML20006C578

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Forwards SER Concluding That GE NEDO-31558, Position on NRC Reg Guide 1.97,Rev 3 Requirements for Post-Accident Neutron Monitoring Sys, Submitted by BWR Owners Group , Unacceptable.Environ Qualification of Equipment Required
ML20006C578
Person / Time
Site: Millstone Dominion icon.png
Issue date: 01/29/1990
From: Miraglia F
Office of Nuclear Reactor Regulation
To: Floyd S
BWR OWNERS GROUP
Shared Package
ML17202R742 List:
References
CON-IIT07-463A-91, CON-IIT7-461-91, CON-IIT7-463A-91, RTR-REGGD-01.097, RTR-REGGD-1.097 NUREG-1455, NUDOCS 9002080254
Download: ML20006C578 (1)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION s

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January 29, 1990 eeeee Mr. Stephen D. Floyd, Chairman BWR Owners' Group Carolina Power and Light 411 Fayetteville Street Raleigh, NC 27602

Dear Mr. Floyd:

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SUBJECT:

BWR OWNER $' GROUP LICENSING TOPICAL REPORT " POSITION ON MRC REGULATORY GUIDE 1.97 REVISION 3 REQUIREMENTS FOR POST-ACCIDENTNEUTRONMONIYORINGSYSTEM"(GENERALELECTRICREPOR NED0-31558)

References:

1)

BWR Owners' Group letter (R. F. Janecek) to NRC (T. E.

Murley), "BwR Owners' Group Licensing Topical Report

" Position on NRC Regulatory Guide 1.97, Revision 3 Requirements for Post-Accident Neutron Monitoring System" (GeneralElectricReportNED031558), April 1,1988.

-2)

BWR Owners' Group letter (D. N. Grace) to NRC (T. T.

Hartin), "BWR Owners' Group Licensing Topical Report 4

" Position on NRC Regulatory Guide 1.97, Revision 3 Requirements for Post-Accident Heutron Monitoring System" (General Electric Report NEDO 31558), June 13, 1988.

Reference 2 requested that the staff expedite its review of Reference 1.

Reference I submitted the BWR Owners' Group (BWROG) Licensing Topical Report (LTR) for staff review and approval.

The LTR proposed functional criteria for post-accident neutron flux monitoring as an alternative to the Category 1 recommendations specified in Regulatory Guide (R.G.) 1.97.

h Based on our review, the staff concludes that a Category 1 designation, and associated lower range for neutron flux monitoring equipment is appropriate.

Therefore, the proposed LTR NEDO-31558 is unacceptable and the neutron flux monitoring equipment must be environmentally qualified to comply with 10CFR50.49.

If you have any questions regarding the above information, please contact Barry Marcus, of my staff on 49-207764 Sincerely, g

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Frank J. M raglia Associate Director 2

for Inspection and Technical Assessment OfficeofNuclearReactorReguintion t

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