ML19309E049
| ML19309E049 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 04/02/1980 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Bryan J UNION ELECTRIC CO. |
| References | |
| NUDOCS 8004180063 | |
| Download: ML19309E049 (1) | |
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UNITE D STATES
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REGION 111
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799 ROOSEVELT ROAD
%.... e L LEN E LLYN,lLLINOIS 60137 Docket No. 50-483 APR 2 sag Docket No. 50-486 Union Electric Company ATTN:
Mr. John K. Bryan Vice President - Nuclear P. O. Box 149 St. Louis, MO 63166 Gentlemen:
IE Circular No. 80-03 dated March 6, 1980, was inadvertently sent to you without the enclosed attachments. We are sorry for any inconvenience this may have caused you.
Sincerely, yVWA.
James G. Keppler Director Attachments:
Sections 2.2.1-2.2.2; 2.2.3 and 6.4 of NUREG 75/087 cc w/ attach:
Mr. W. II. Weber, Manager, Nuclear Construction Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Region I & IV Ms. K. Drey Mr. Ronald Fluegge, Utility Division, Missouri Public Service Commission 8 0 0 4 2 8 oC63
NUREG 75/087
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U.S. NUCLEAR REGULATORY COMMISSION 1
STANDARD REVIEW PLAN
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OFFICE OF NUCLEAR REACTOR REGULATION t'
SECTION 6.4 HABITABILI1Y SYSTEMS REVIEW RESPONSIBILITIES Primary - Accident Analysis Branch (AAB)
Secondary - Hydrology-Meteorology Branch (HMB)
Auxiliary Systems Branch (ASB)
Effluent Treatment Systems Branch (ETSB)
I.
AREAS OF REVIEW The control room ventilation system and control building layout and structures, as described in the applicant's safety analysis report (SAR), are reviewed with the objective of assuring that plant operators are adequately protected against the effects of accidental releases of toxic or radioactive gases. A further objective is to assure that the control room can be maintained as the center from which emergency teams can safely operate in the case of a design basis radiological release. To assure that these objectives are accom-p11shed the following items are reviewed:
l 1.
The zone serviced by the control room emergency ventilation system is examined to ascertain that all critical areas requiring access in the event of an accident are f,
included within the Zone (control room, kitchen, sanitary facilities, etc.) and to assure that those areas not requiring access are generally excluded from the Zone.
2.
The capacity of the control room in terms of the number of people it can accommodate for an extended period of time is reviewed to confirm the adequacy of emergency food and medical supplies and self-contained breathing apparatus and to detennine the length of time the control room can be isolated before C0 levels become excessive.
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3.
The control room ventilation system layout and functional design is reviewed to determine flow rates and filter efficiencies for input into the AAB analyses of the buildup of radioactive or toxic gases inside the control room, assuming a design basis release. Basic deficiencies that might impair the effectiveness of the system are examined. In addition, the system operation and procedures are reviewed. The ASB has primary responsibility in the system review area under Standard Review Plan (SRP) 9.4.1.
The ASB is consulted when reviewing hardware and operating procedures.
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