ML19340F184

Forwards Request for Addl Info Re FSAR for Facility. Applicant Must Provide Provisions for Emergency Food,Water & Medical Supplies in Description of Control Room Habitability & List Areas & Matls in Emergency Ventilation Sys Zone

ML19340F184
Person / Time
Site:	Wolf Creek, Callaway
Issue date:	01/07/1981
From:	Tedesco R Office of Nuclear Reactor Regulation
To:	Bryan J, Koester G KANSAS GAS & ELECTRIC CO., UNION ELECTRIC CO.
References
NUDOCS 8101210250
Download: ML19340F184 (4)

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UNITED STATES Z

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50-482, 50-483 and 50-486 Mr. John K. Bryan Mr. Glenn L. Koester Vice President Vice President - Nuclear Union Electric Company Kansas Gas and Electric Company 1901 Gratiot Street 201 North Market Street Post Office Box 149 Post Office Box 208 St. Louis, Missouri 63166 Wichita, Kansas 67201

Subject:

SNUPPS FSAR - Request for Additional Information As a result of our review of your application for operating licenses we find that we need additional information regarding the SNUP?S FSAR. The specific information required is listed in the enclosure. Please provice your responses within six weeks after your receipt of these questions.

If you desire any discussion or clarification of the information requested, please contact, R. M. Stark, Project Manager, (301-492-7238).

Sincerely, Ekfh Robert L. Tedesco, Assistant Director for Licensing Division of Licensing

Enclosure:

As stated cc: See next page l

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81012101 9

J Mr. J. K. Bryan Vice President - Nuclear i

Union Electric Company P. O. Box 149 St. Louis, Missouri 63166 cc: Mr. Nicholas A. Petrick Mr. William' Hansen Executive Director - SNUPPS Resident Inspector /Callaway NPS 5 Choke Cherry Road c/o USNRC Rockville, Maryland 20850 Steedman, Misso'ri 65077 u

Gerald Charnoff, Esq.

Shaw, Pittman, Potts &

Trowbridge 1800 M Street, N. W.

Washington, D. C, 20036 Mr. J. E. Birk Assistant to the General Counsel Union Electric Company P. O. Box 149

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St. Louis, Missouri 63166 1

j Dr. Vern Starks Route 1, Box 863

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Ketchikan, Alaska 99901 Ms. TrevaHearn, Assistant General i

Counsel l'

Missouri Public Service Commission P. O. Box 360 Jefferson City, Missouri 65102 Mr. D. F. Schnell Manager-Nuclear Engineering 4

Union Electric Company

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P. O. Box 149 l

St. Louis, Missouri 63166 i

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450.00 In your description of the control room habitability system, include (6.4) the provisions for emergency food, water and medical supplies.

450.01 In the evaluation of toxic gas protection, document the degree of (6.4) leaktightness of the control room isolation dampers.

450.02 Provide a description and drawing showing the locations of control (6.4) room outside air inlets relative to potential radiation releases.

450.03 In your analysis of toxic gas protection for control roon personnel, (6.4) provide tha number and type of respiratory devices, the type of operator training for respiratory use, the estimated time for donning or deploying the equipment, the length of time the equipment can be used, and the equipment testing and maintenance provisions.

450.04 List the areas, equipment and materials in the zone serviced by the (6.4) control roo:Lemergency-ventilation-system._

450.05 Discuss how the control room design precludes the buildup of noxious (6.4) gases from control room equipment such as gases from batteries.

450.06 In Section 6.4.5, the testing and inspection of the control room (6.4) habitability systems is described.

In particular, the last paragraph states: "The control room is classified as Type B per Regulatory Guide 1.78.

Since the air exchange rate exceeds 0.06 air exchanges per hour for the control room, periodic testing of the control room pressurization system is not required per the exclusion provisions of the regulatory guide."

Apparently, there is some confusion as to the applicability of Regula-tory Guide 1.95 (and 1.78) to the control room ventilation design i

for radiological protection. For a control room outside air makeup rate during emergency pressurization less than 0.25 volume change per hour (as in Callaway ), SRP Section 6.4 recommends the following:

(1) acceptance test to verify adequate pressure, (2) supporting calculations to verify adequate air flow, and.

(3) periodic verification testing.

If this guidance is not followed, justify the departures.

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, 450.07 In Section 6.5.2.2.3 of the SflVPPS FSAR, it stated that the containment (6.5 ?)

spray system recirculation flow is manually initiated.

It is the staff's position that the containment spray switchover be automatic. Justify 4

your departure from this position.

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450.08 With respect to rod ejection accident, provide the transient time for (15.4.8(A))

the depressurization of the primary system to the termination of pri-mary to secondary leakage.

450.09 The following information is currently missing from the Callaway FSAR (15.6.3) and is needed to complete our review. For the steam generator tube rupture accident provide the following figures:

(1). SGTR break flow rate vs Time (2) SGTR. integrated tube leak mass vs Time (3) Primary system pressure vs Time i

(4) Secondary system pressure vs Time (5)P0Ry_ficwratevsTime (6) MS Safety valve flow rate per steamline vs Time

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(7) Atmospheric dump valve flow rate vs time (8) Steam generator steaming rate vs Time (9) Reactor coolant temperature vs Time l

',10) Feedwater flow rate into the steam generators vs Time

11) Water level in the affected steam generator relative to the top of the tube bundle vs Time.

l Also, provide the mass of secondary coolant in a steam generator.

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