ML20042F612

Forwards Rancho Seco Emergency Plan Change 4 Long-Term Defueled Condition. New Plan Includes Provisions Necessary for Protection of Onsite Personnel & for Protection of Public Via Communication W/Offsite Agencies

ML20042F612
Person / Time
Site:	Rancho Seco
Issue date:	04/26/1990
From:	Keuter D SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20042F613	List: ML20042F612
References
AGM-NUC-90-120, IEIN-90-008, IEIN-90-8, NUDOCS 9005090153
Download: ML20042F612 (2)

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' SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, P.o. Box 15830, Sacr'amento CA 95852 1830,(916) 452 3211' et AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIAe i

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m AGM/NUC 90-120 l

. April.2641990 p

U; S.: Nuclear: Regulatory Commission Attnf_ Document Control Desk t

Washington, DC. 20555 4

g Docket No. 50-312 Rancho Seco Nuclear Generating Station License-No. DPR-54

'i LONG TERM DEFUELED CONDITION EMERGENCY PLAN-Attention: John Larkins The District'is proposing a new Emergency Plan that specifically applies to.

Lthe Rancho Seco.long term defueled condition. The new Plan has been reviewed by the' State:of California and Sacramento,. San Joaquin and Amador Counties and their comments have'been incorporated.

This new Plan represents a change in-

' focus from prior versions and is a complete rewrite based on the reduced spectrum of' applicable postulated-accidents, the reduction in source terms, and the corresponding reduction in, potential exposures to the public.

Since cessation of plant. operations-in June, of 1989,: Iodine-131 has decayed to axlevel such that thyroid exposure is no~ longer the significant concernE As -

indicated in NRC Information-Notice 90-08,-Krypton-85 is now the principal

.7 isotope-of concern. District calculations have determined that offsite L

exposures from accidental releases would-be well;below Protective Action Guidelines'.

The.new Plan includes those provisions necessary for the protection of onsite personnel and for the protection of the public via coinmunication with offsite agencies'. Hhile regulations, specifica11ys10 CFR 47(b)~and 10 CFR 50 Appendix E, do not address? emergency planning requirements for long term K

defueled conditions, the new Plan includes all planning functions addressed in L

the regulations.

The scope of these functions has been revised to correspond H

with the-nature and magnitude of potential hazards associated with the long term defueled condition. The Plan no longer includes an Emergency Planning Zone (EPZ) of approximately 10 miles in radius, an Emergency News Center, an Emergency Operations. Facility and Emergency Response Organization staffing for i

offsite' support.

District coordination with Amador and San Joaquin Counties Land District maintained systems for alerting members of the public are also not included.

9005090153 900426 ADOCK0500g2 g

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fpgf'7/dM RANCHO SECo NUCLEAR GENERATING STATION O 1444o Twin Cities Road, Herald, CA 95638 9799;(2o9) 333 2935

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. AGM/NUC 90-120 John Larkins This new Plan changes the EPZ to the plant industrial area.

The Plan also includes onsite emergency response facilities and an emergency response -

organization with adequate procedures and resources to manage the emergency 1

response for events applicable to the long term defueled condition.

Provisions are also made for communication with Sacramento County and the State'of California to inform them of emergencies.

This Change is being proposed in accordance with site procedures which govern the Plan.

Rancho Seco has changed from an' operating reactor facility to a permanently and completely defueled facility with all fuel _ stored in the spent fuel pool. Our review of the new Plan, in accordance with the requirements of 4

10 CFR 50.54(q), resulted in the determination that certain changes require NRC approval prior to implementation of the Plan.

The Plan does not involve any unreviewed safety ciuestion.

However, it represents a decrease in the scope of planning as provided by prior versions of the Plan.

The proposed Plan has been determined to be adequate to assure the protection of the health and safety of both onsite personnel and members of the public.

The District will not implement the Plan without prior NRC approval.

By transmittal of this letter and the attached. Plan, the District hereby requests such approval.

Members of your staff with questions requiring additional information or clarification may contact Steve Crunk at (209) 333-2935, extension 4913.

..4 Enclosure cc w/ encl:

J. B. Martin, NRC, Halnut Creek A. D'Angelo, NRC, Rancho Seco G. Kalman, NRC, Washington DC

~i S. Reynolds, NRC, Washington,-DC State of California SS County of Sacramento Dan R. Keuter, being first duly sworn, deposes and says:

that he is Assistant General Manager, Nuclear of Sacramento Municipal Utility District (SMUD), the licensee herein; that he has executed the foregoing document; that the statements made in this document are true and correct to the best of his knowledge, information, and belief, and that he is authorized to execute this document on behalf of said licensee.

g wv Dan R. Keuter Assistant General Manager Nuclear Subscribed and affirmed to before me on this day of d

, 1990.

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OFFICIAL SEAL

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Traci L. Gordon l

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Notary Public 0

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