ML20151L147
| ML20151L147 | |
| Person / Time | |
|---|---|
| Issue date: | 08/01/1988 |
| From: | Chilk S NRC OFFICE OF THE SECRETARY (SECY) |
| To: | Stello V NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO) |
| References | |
| REF-10CFR9.7 M880722, NUDOCS 8808030362 | |
| Download: ML20151L147 (2) | |
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NUCLEAR REGULATORY COMMISSION IN RESPONSE, PLEASE o,I W ASHIN GT ON, D.C. 20555 REFER TO: M880722
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August 1, 1988 0FFICE OF THE SECRETARY MEMORANDUM FOR:
Victor Stello, Jr.
Executive Director for O Etions FROM:
Samuel J. Chilk, Secreta) 4
SUBJECT:
STAFF REQUIREMEtiTS - BRIEFI3G ON INTERIM REPORT ON BWR MARK I CONQAINMENT ISSUES, 10:00 A.M.,
FRIDAY, JULY 22, 1988, COMMISSIONERS' CONFERENCE ROOM, ONE WHITE FLINT NORTH, ROCKVILLE, MARYLAND (OPEN TO PUBLIC ATTENDANCE)
The Commission was briefed by the staff on efforts to improve containment performance under postulated severe accident conditions for General Electric designed MARK-I reactor contain-ments, described in staff paper SECY-88-206, "Status of MARK-I Containment Performance Evaluation" (publicly released at time of briefing).
The Commission requested the schedule for submitting the final recommendations on the MARK-I containment enhancement program.
(EDO)
(SECY Suspense:
8/31/88)
In addition, the Commission requested the staff to address the following topics with its final recommendations:
4 1.
The relative risk from a severe core damage accident for boiling versus pressurized water reactor containment
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2.
The reduction in core melt frequencies resulting from the requirements of the anticipated transient without scram j
and the station blackout rules.
The staff should address 1
the relative benefits in risk reductions for both BWRs and l
PWRs, including the rationale for the differences.
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3.
Safety implications of a fire when diverting the fire water to the decay heat removal system.
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Detailed outline of the containment emergency venting operator procedures.
The decision process and person responsible for the decision to vent should be clearly identified.
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Chairman Zech Commissioner Roberts Commissioner Carr Commissioner Rogers OGC GPA PDR - Advance l
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