ML17191B207

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Informs of Completion of Review of 931112,980507 & 981125 Submittals Re Dresden NPP Units 2 & 3 Nf Monitoring Instrumentation & NEDO-31558 Criteria.Determined That Deviations from NEDO-31558 Acceptable
ML17191B207
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 01/13/1999
From: Rossbach L
NRC (Affiliation Not Assigned)
To: Kingsley O
COMMONWEALTH EDISON CO.
References
RTR-REGGD-01.097, RTR-REGGD-1.097 GL-82-33, TAC-MA3676, TAC-MA3677, NUDOCS 9901200447
Download: ML17191B207 (3)


Text

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Mr. Oliver D. Kingsley, President Nuclear Generation Group Commonwealth Edison Company Executive Towe rs West Ill 1400 Opus Place, Suite 500 Downers Grove, IL 60515 e

January 13, 1999

SUBJECT:

REGULATORY GUIDE 1.97-BOILING WATER REACTOR NEUTRON FLUX MONITORING - DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 (TAC NOS. MA3676 AND MA3677)

Dear Mr. Kingsley:

Section 6.2 of Generic Letter 82-33 requested applicants and licensees to provide a report on their implementation of Regulatory Guide 1.97. The BWR Owners' Group responded by submitting NED0-31558, "Position on NRC Regulatory Guide 1.97, Revision 3, Requirements for Post-Accident Neutron Monitoring System," which proposed alternative criteria for neutron flux monitoring instrumentation in lieu of the Category 1 criteria stated in the regulatory guide.

In a safety evaluation dated January 13, 1993, the staff concluded that the criteria of NED0-31558 was acceptable.

By letter dated June 3, 1993, the staff requested you to review the Dresden Nuclear Power Station, Units 2 and 3, neutron flux monitoring instrumentation against the criteria of NED0-31558 and document the results of your review. Your letters dated November 12, 1993, May 7, 1998, and November 25, 1998, provided the results of your review.

The staff has completed its review of your submittals and determined that the deviations from NED0-31558 specified in your submittals are acceptable. Therefore, the post-accident neutron flux monitoring instrumentation at the Dresden Nuclear Power Station, Units 2 and 3, is an acceptable alternative to the guidance in Regulatory Guide 1.97.

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. p PDR Docket Nos. 50-237 and 50-249 cc
See next page Distribution:

Docket File 1*

S. Richards R. Laufer M. Ring, Riii PUBLIC C. Moore B. Marcus Sincerely, ORIG. SIGNED BY Lawrence W. Rossbach, Project Manager Project Directorate 111-2 Division of Reactor Projects - 111/IV Office of Nuclear Reactor Regulation DOCUMENT NAME: G:\\PD3-2\\L TRA3676 OFFICE PM:PDlll-2 D:PDlll-2 0

NAME LROSSBAC SRICHARDS Zi DATE 01/ / Z.../99 9

01/. 3199 OFFICIAL RECORD COPY

UNITED STATES NUCLEAR REGULATORY COMMISSION Mr. Oliver D. Kingsley, President Nuclear Generation Group Commonwealth Edison Company Executive Towe rs West Ill 1400 Opus Place, Suite 500 Downers Grove, IL 60515 WASHINGTON, D.C. 20555-0001 January 13, 1999

SUBJECT:

REGULATORY GUIDE 1.97-BOILING WATER REACTOR NEUTRON FLUX MONITORING - DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 (TAC NOS. MA3676 AND MA3677)

Dear Mr. Kingsley:

Section 6.2 of Generic Letter 82-33 requested applicants and licensees to provide a report on their implementation of Regulatory Guide 1.97. The BWR Owners' Group responded by submitting NED0-31558, "Position on NRC Regulatory Guide 1.97, Revision 3, Requirements for Post-Accident Neutron Monitoring System," which proposed alternative criteria for neutron flux monitoring instrumentation in lieu of the Category 1 criteria stated in the regulatory guide.

In a safety evaluation dated January 13, 1993, the staff concluded that the criteria of NED0-31558 was acceptable.

By letter dated June 3, 1993, the staff requested you to review the Dresden Nuclear Power Station, Units 2 and 3, neutron flux monitoring instrumentation against the criteria of NED0-31558 and document the results of your review. Your letters dated November 12, 1993, May 7, 1998, and November 25, 1998, provided the results of your review.

The staff has completed its review of your submittals and determined that the deviations from NED0-.31558 specified in your submittals are acceptable. Therefore, the post-accident neutron flux monitoring instrumentation at the Dresden Nuclear Power Station, Units 2 and 3, is an acceptable alternative to the guidance in Regulatory Guide 1.97.

Docket Nos. 50-237 and 50-249 cc: See next page Sincerely, Lawrence W. Rossbach, Project Manager Project Directorate 111-2 Division of Reactor Projects - 111/IV Office of Nuclear Reactor Regulation

0. Kingsley Commonwealth Edison Company cc:

Commonwealth Edison Company Site Vice President - Dresden 6500 N. Dresden Road Morris, Illinois 60450-9765 Commonwealth Edison Company Dresden Station Manager 6500 N. Dresden Road Morris, Illinois 60450-9765 U.S. Nuclear Regulatory Commission Dresden Resident Inspectors Office 6500 N. Dresden Road Morris, Illinois 60450-9766 Regional Administrator U.S. NRC, Region Ill 801 Warrenville Road Lisle, Illinois 60532-4351 Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1 035 Outer Park Drive Springfield, Illinois 62704 Chairman Grundy County Board Administration Building 1320 Union Street Morris, Illinois 60450 Document Control Desk-Licensing Commonwealth Edison Company 1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 Commonwealth Edison Company Reg. Assurance Manager - Dresden 6500 N. Dresden Road Morris, Illinois 60450-9765 Mr. David Helwig Senior Vice President Commonwealth Edison Company Executive Towers West Ill 1400 Opus Place, Suite 900 Downers Grove, Illinois 60515 Dresden Nuclear Power Station Units 2 and 3 Mr. Gene H. Stanley PWR Vice President Commonwealth Edison Company Executive Towers West Ill 1400 Opus Place, Suite 900 Downers Grove, Illinois 60515 Mr. Christopher Crane BWR Vice President Commonwealth Edison Company Executive Towers West Ill 1400 Opus Place, Suite 900 Downers Grove, Illinois 60515 Mr. R. M. Krich Vice President - Regulatory Services Commonwealth Edison Company Executive Towers West Ill 1400 Opus Place, Suite 500 Downers Grove, Illinois 60515 Ms. Pamela B. Stroebel Senior Vice President and General Counsel Commonwealth Edison Company P.O. Box767 Chicago, Illinois 60690-0767