ML17174A565
| ML17174A565 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion  |
| Issue date: | 11/26/1980 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| References | |
| IEB-79-14, NUDOCS 8012100661 | |
| Download: ML17174A565 (2) | |
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UNITED STATES
- NUCLEAR REGULATORY COMMISSION U;
REGION Ill 799 ROOSEVELT ROAD GLEN ELL VN, ILLINOIS 60137 NOV G 6 1980 Do~t No.
0 50-231, 50-249; 50-254, 50-1'65; 50-295, 50-304 Commonwealth Edison Company ATTN:
Mr. Cordell Reed Vice President Post Office Box 767 Chicago, IL 60690 Gentlemen:
PO~
- This refers to.your letter dated September 19, 1980, submitted in response to our letter dated August 18, 1980, which requested additional information relative to th:e IE Bulletin 79-14 evaluations that were performed for your operating nuclear power plants.
We consider your Dresden and Quad Cities responses to items 1 and 3 of our letter to be unacceptable, in that the information requested, and which CECo agreed to provide, was not included.
The operability criteria of a maximt.im primary pipe stress during the SSE loading condition of 2.4 Sh for all safety related seismic category systems, including those systems that were previously analyzed using curve, table, or chart method, was established by the NRC-NRR:Mechanical Engineering Branch
(~!EB) and concurred with by our headquarters.
The NRC has had numerous discussions with your technical staff regarding the 2.4 Sh criteria.
In an effort to resolve this matter, additional discussion with members of your staff was conducted on November 18, 1980.
It was concluded that the Control Rod Drive System is within the scope of IE Bulletin 79-14 and that there should be a meeting between representatives of your organization and the NRC staff to discuss IE Bulletin 79-14 operability criteria including the results of your evaluation now in progress.
This meeting is tentatively scheduled for the second week in December 1980.
The exact time and place will be confirmed by telephone.
Commonwealth Edison Company We will. examine the additional information presented for the Zion Station during subsequent inspections.
Your cooperation with us is appreciated.
cc:
E. L. Jordan, IE H. J. Wong, IE R. J. Bosnak, NRR:MEB J. S. Abel, Director of Nuclear Licensing D. J. Scott, Station Superintendent N. Kalivianakis, Plant Superintendent K. Graesser, Station Superintendent cc w/ltr dtd 9/19/80:
Central Files Reproduction Unit NRC 20b AEOD Resident Inspectors, RIII PDR Local PDR NSIC TIC Dean Hansell, Office of Assistant Attorney General Sincerely,