ML17202G788
| ML17202G788 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, LaSalle, 05000000 |
| Issue date: | 02/14/1990 |
| From: | Olshan L, Pulsifer R, Siegel B Office of Nuclear Reactor Regulation |
| To: | Kovach T COMMONWEALTH EDISON CO. |
| References | |
| RTR-REGGD-01.097 NUDOCS 9002270432 | |
| Download: ML17202G788 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION
_.WASHINGTON, 0. C. 20555 Docket* Nos.
~0-237, 50-249 50-254' 50-265, 50-373, 50-374 Thomas J. Kovach Nuclear Litensing Ma~ager Commonwealth Edison Company-Stdte 300 OPUS West Ill 1400 OPUS Place*
Downers Grove, Illinois 60515
Dear Mr. Kovach:
February 14, 1990
~UBJECT: POST ACCIDENT NEUTRON FLUX MONITORING INSTRUMENTATION TO-MEET THE REQUIREMENTS OF REGULATORY BUIOE 1.97 FOR THE DRESDEN, QUAD CITIES AND LASALLE STATIONS Ref: 1)
BWR Owners' Gro~p 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 fo~ Post-Accident Neutron Moni-.
taring System" (General Electric Report NED0-31558), April 1, 1988.
Regulatory Guide (R.G.) 1.97 and 10 CFR 50.49 require that neutron *flux be monitored by Category 1 instrumentation.
The staff has allowed BWRs to operate with existing instrumentation until instrumentation was developed that
_conforms to the requirements of R.G. 1.97 and 10 CfR 50.49.
The Boiling Water Reactor Owners Group (BWROG) submitted a report (Reference
- 1) which.proposed functional criteria for post-accident neutron flux monitoring
- as an alternative to the Category. 1 instrumentation recolTITlendations. specified in R.G. 1.97. The BWROG proposed alternative position, which was determined to be unacceptable by the staff, is contained in the enclosed letter and Safety Evaluation Report.
Since instrumentation that meets the requirements of R.G. 1.97 and.10 CFR 50.49 is now available, and the staff has d~termined that the BWROG alternative position is unacceptable!, it is requested that Co1T111onwee11th Edison Company provide a schedule for installation of neutron flux monitoring instrumentation that meets the requirements of these document~frir each of the Dresden, Quad Cities and LaSalle plants.
Please provide this schedul~ within 45 days of receipt of thii letter. If you have any problems related to this issue on the requested information, please contact the appropri~te Project Manager.
9002270432 900214 PDR ADOCK 05000237 p
Thomas February 14, 1990 The reporting and/or recordkeeping requirements coritained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Enclosur,e:
As Stated cc w/enclosure:
See next Page DISTRIBUTION ll~ 'k: **t tr~
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d--jlf/90 NRC & Local PDRs JZwolinski BSiegel RPulsifer EJordan Plant File JHickman Sincerely,
/s/
Byron L. Siegel, Project Manager Project Directorate III-2 Division of Reactor Projects ~ III, IV, V and Special Projects Office of Nuclear Reactor Regulation
/sf Leonard N. Olshan, Project Manager Project Directorate III-2 Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation
/s/
Robert M. Pulsifer, Project Manager Project Directorate III-2 Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation OFFICIAL RECORD COPY Document Name:
KOVACH13 P
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Thomas J. Kovach
-?.-
February 14, 1990 The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Enclosure:
As Stated cc w/enclosure:
See next Page Sincerely, B~';;;'~~~roject Manager Project Directorate III-2 Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation Leonard N. Olshan, Project Manager Project Directorate 111-2 Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation
~;'f"~Project Manager Project Directorate III-2 Division of Reactor Projects - III, IV, V and Special Projects Off ice of Nuclear Reactor Regulation