ML20150D705

Safety Evaluation Supporting Rev 10 to Emergency Plan

ML20150D705
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	07/08/1988
From:	Office of Nuclear Reactor Regulation
To:
Shared Package
ML20150D703	List: ML20150D701 ML20150D705
References
NUDOCS 8807140111
Download: ML20150D705 (8)

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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING APPROVAL OF EMERGENCY PLAN, REVISION 10 4

LA CROSSE BOILING WATER REACTOR (LACBWR)

DOCKET N0. 50-409

1.0 INTRODUCTION

By letter dated September 29, 1987 as revised by letters dated A May 18, 1988, Dairyland Power Cooperative (DFC or the licensee) pril 15 submitted a and proposed Emergency Plan, Revision 10 for the La Crosse Boiling Water Reactor (LACBWR). The Emergency Plan was revised to reflect the permanently shutdown and defueled status of the LACBWR. The submittal also included an attached technical report providing the licensee's justification for the proposed Emergency Planning Zone (EPZ) boundary. LACBWR was permanently shutdown on April 30, 1987 and completely defueled on June 11, 1987. The Nuclear Regulatory Commission issued a possess-but-r.ot-operate amendment to Provisional Operating License No. DPR-45 on August 4, 1987.

The NRC staff used the same acceptance criteria for the review of the LACBWR Emergency Plan as is used to evaluate the adequacy of onsite emergency plans for nuclear power reactors, with consideration for the current operational status and inherent low risk of LACBWR as described in the following sections.

The acceptance criteria includes the planning standards of 10 CFR 50.47(b), the requirements of Appendix E to 10 CFR Part 50, and the guidance criteria of NUREG-0654/ FEMA-REP-1, Revision 1, "Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Preparedness in Support of Nuclear Power Plants," dated November 1980.

The potential for emergency events to occur and their possible consequences are discussed in the Emergency Plan. All irradiated feel has been removed from the reactor vessel and is being stored in the Fuel Element Storage Well (FESW).

The radioactive source terms for an accidental release have been greatly reduced by radioactive decay. Additionally, the remaining decay heat contained in the irradiated fuel is low enough to greatly delay fuel cladding damage should a loss of water inventory in the spent fuel pool occur. Based on an analysis of possible events at LACBWR, the licensee states in the Emergency Plan that there are no postulated accidents which could result in the release of rudioactive materials to the environment in quantities which would require protective actions for the public.

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% The NRC staff evaluated the offstte radiological consequences of potential accidents involving the fuel stored in ti,e FESW. In the analysis, tha plant

- was considered. shutdown 4380 hours0.0507 days <br />1.217 hours <br />0.00724 weeks <br />0.00167 months <br /> (1/2 year); all 333 fuel assemblies, each containing 100 fuel pins, were assumed damaged; no filters for iodine removal were operating; and no fuel 2001 water wn missing. The staff concluded that

. in'this scenario, doses at t1e exclusion area boundary would be considerably less than 25 percent of the 10 CFR Part 100, paragraph 11 guideline values, i.e., much .less than 75 rem for the thyroid and 6 rem for the whole-body dose.

The above dose values are the acceptan:e criteria values from the NRC Standard Review Plan (NUREG-0800) Section 15.7.5 on spent fuel cask drop accidents.

Similarly, the staff's calculated doses are well below the Environmental Protection Agency's Protective Action Guides for protecting the public from exposure, i.e., 5-25 rem thyroid and 1-5 rem whole-body doce.

2.0 STAFF EVALUATION 2.1 Emergency Clr;sification System Incidents et nuclear power plants are categorized into one of four emergency classes at. cording is a graduated level of severity; i.e., Notification of Unusual Event (NOVE), Alert, Site Area Emergency, and Gei1eral Emergency. The licensee has evaluated the potential consequences of a spectrum of postulated accidents and states that there is no postulated accident for LACBWR during Safe Porage (SAFSTOR) which could result in an emergency classification more severe than an Alert. A list of initiating conditions and emergency action levels associated with possible events *t LACBWR which would result in the declaration of a NOVE or Alert is given in Table D-1 of the Emergency Plan.

2.2 Emergency Facilities and Equipment The LACBWR Emargency Plan identifies facilities which are intended to be used l

as response centers in the event of an emcrgency situation. These include the control rocm and tk training room adjacent to the control room. The training room is the onsite alternate location in the event the control roor' is inaccessible. The comunication capabilities for these facilities include l cwnercial telephone service, private automatic branch exchange (PABX),

microwave tie trunk, mob' adio system, the Em rgency Notification System (ENS), and a Health Physh Network System Circuit.

Assessment systems and equipment include post accident sampling, effluent j

monitors, an area radiation monitoring system, a process radiological monitor-c ing system, a radiological counting room which is used for radiochemical determinations, portable survey instruments, and a radiological : 6: gency Mt located in the conference room. Protective clothing, respiratou protection, air samplers, and other standard radiological equipment and supplies are avail-able for emergency use. Provisions have been made to periodically check the equipment and to maintain adequate supplies.

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2.3 Emergency Communications The licensee's communications capabilities include a commercial telephone j system, a LACBWR PABX with ties to the comercial system, a DPC microwave trunk and a radio system with mobile units. The LACBWR PABX telephone system is designed to recain operable in an emergency situation with emergency power provided from diesel generators. The radio system can be used in an emergency to establish communications through micro-wave, radio, PABX er commercial telephones. Emergency power to the radio system in the vehicle is supplied by alternator and battery of the the vehicle. In the control room emergency power to tne radio system is supplied by the 1C non-interruptible bus.

2.4 Medical and Public Health Support The Emergency Plan states that La Crosse Lutheran Hospital, located in La Crosse, Wiscont.in, has agreed to accept and treat any person who is injured and contaminated. The licensee has made arrangements with two local ambulance companies to provide ambulance service for injured employees, including those that might be contaminated.

Standard first-aid kits, blankets and basket stretchers are placed at various locations throughout the plant. Selecteri plant personnel receive first-aid training on an annual basis.

2.5 Assignment of Responsibility (Organizational Contiol)

The LACBWR Emergency Plan describes the organizations that are intended to be part of the overall response effort in the event of an emergency at LACBWR.

In addition to the normal plant operations staff, these organizations include the licensee's corporate headquarters staff, local and regional service support groups which provide police, medical, hospital, ambulance and fire-fighting assistance, and Federal, state and local governmental agencies. In the event of an emergency, the normal onshift operations personnel are responsible for l

initial evaluation of the incident, performing any imediate cocrations which l are necessary to mitigate the consequences of the incident, anu activating the Emergency Plan. The senior member of the oparations staff, the Shift l Supe

• visor, assumes the position of Emergency Response Director { ERD). Thus, there will be a qualified ERD on duty at all times. The licensee will mainiain a ninimum four person shif t organization. The ERD has overall responsibility l

for coordinating additional company resources.

s The Vernon County Sheriff's Department is the local alerting agency which

will be notified t,y the Ex0 in the event of any emergency at LACBWR. The

! Sheriff's Office c e be notified on a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> per day basis. Upon notification l

from the ERD, C Sheriff's Department would, if appropriate, provide local I emergency assistance. The Vernon County Director of Emergency Government l

administers the Vernon County Nuclear Facility Response Plan and is responsible l

for activating the plan in consultation with the Sheriff's Office. The Sheriff l

is responsible for notifying, as app apriate 'ai surrounding county local law l

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enforcement agencies; (c) State of Wisconsin (b) VernonofCounty Department Director Emergency of Emergency)Govcrnment; Government; (d Houston County, Minnesota Sheriff's Office. The revised Emergency Plan includes letters of agreement addressing medical and firefighting services in support of LAC 9WR.

2.6 Onsite Emergency Organization The onsite emergency organizattan of plant staff personnel is described in the LACBWR Emergency Plan. The normal shift complement consists of a minimum four person organization. In the event of an emergency, the shift Supervisor assumes the position of Emergency Response Director, ERD. The basic responsi-bilities and authorities for each position in the emergency organization including the ERD are specified in the plan. The responsibilities of the ERD include actions to ensure that emergency notifications and any protective action recommendations are provided to Vernon County. The ERD is also responsible for notifying or directing the notification of the State of Wisconsin and the NRC.

The norn11 optrations shift staff is augmented in an emergency by other members of the plant staff organization. Appropriate individuals from the licensee's l

staff would be called upon, as necessary, to assist in an emergency.

2.7 ' Emergency Response Support and Resources

-Arrangements have been made by the licensee to utilize offsite organizations to assist the LACBWR noncal plant operations staff in emergency mitigation and recovery efforts. Agreements with local service support organizations provides for immediate 24-hour per day, or.-call response. Other organizations having an emergency response role include Federal, state and local governmental agencies.

The lead local agencies for offsite support are the 'lernon County Sheriff's Office and the County Director of Emergency Government. Upon notification of an emergency it LACBWR, the Shoriff's Office would make appropriate notifications and, if aopropriate, the Vernon County Director of Emergency Government in consultat.on with the Sheriff would activate the Vernon County Nuclear Facility Response Plan.

2.8 Notification fiethods and Proceduros

'he licensee has established an emergency classification scheme which results

! in the declaration of an emergency, that is, a Notification of Unusual Event or Alert, whenever certain specified energency action levels are exceeded. The Shift Supervisor assumes the position of Emergency Response Director and is responsible for activating the Emergency Plan and ensuring that the Vernon County Sheriff's Office, the State of Wis:onsin and the NRC are notified.

Follow-up emergency nessages would be provided to the Sheriff's offica.

In the Emergency Plan the licensee has committed to notify Vernon County, Wisconsin and tne NRC as soon as practical or within one hour of the declaration of an emergency at LACBWR. This time is measured from the time at L

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.n which the Shift Supervisor recognizes that events have occurred which make the declaration of an emergency appropriate. Several warning signals and alarms are available to alert onsite personnel of an emergency. The shift staff will contain personnel for augmentation by telephone.

2.9 Public Education and Information DPC will mail an information letter to the public that provides plant and emergency. planning information reflective of the oermanently shutdown and defueled si;atus of the reactor. Public information on an emergency would also be provided through the activation of the Vernon County Emergency Plan.

Postulated accidents at the plant are not expected to result in any offsite releases of radioactive materials at levels which would require the implementation of offsite protective actions sucn as evacuation or shelter for the pabilc.

2.10 Accident Assessment The systems and equipment for assessing and monitoring the actual or 30tential consequences of a radiological emergency condition are described in t1e plan.

An Area Radiation Monitoring System (ARMS) consisting of a system of perma-nently installed radiation monitoring detectors is located throughout the plant. ARMS measures the ambient radiation level in each monitored area and is used for personnel radiation protection pu poses and to alert plant staff to the release or radioactive mate,ial within ; plant structure. In addition, high range containment building monitors are capable of monitoring radiation

. levels specified for post-accident conditions.

LACdWR has two post-accident sampling systems capable of providing both parti-culate and gaseous sau.ples. Portable survey and dose rate instruments are available for routine radiological monitoring and for use in emergencies. The plant has a radiological counting labcratory with equipment for radiochemical sample analysis.

Real-time radiological release infctmation provided by the stack effluent l monitoring system along with estimated noble gas inventories and measured i atmospheric dispersion factors for the nearest site boundary location are l .used to estimate offsite doses. A member of tne Health and Safety Department l 1s responsible for initial offsi+.e dose a cessment associated with the actual l or potential radiological consequences of an accident. The Health Physics

Department representative is responsible for working with the state government regarding radiological releases and monitoring activities. Plant personnel have been deli 3nated to relieve the ra-shift staff of these amergency organization positions for long-tarm response. The plant emergency organi-l zation also includes emergency radiolocio 1 teams for performing radiation surveys and other radiation protection f.netions. Technical assistance for the plant staff is available through the DPC support organi

ation which includes specialists in cose assessment and meteoro hgy.

2.11 Protective Response The protective response actions for onsite personnel, including plant staff, visitors and contractors, are described in the plan. Onsite personnel are alerted that an emergency condition exists by the sounding of thres sirens, located in the reactor building, turbine building and outside area, A plant-wide paging system incorporated into the PABX can be ar.tivated to call personnel or to issue instructions. Visitors and other non-company personnel are briefed on the meaning of plant emergency signals and their response upon entry to the site. During an emergency involving significant releases of radioactivity, onsite personnel will be directed to take shelter and the control room ventilation system will be shutdown if stack blowers are inoperable. Emergency plan procedures describe accountability of onsite persons and protective actions-to be taken.

2.12 Radiological Expostre Control Management of the exposure control program for onsite emergency workers during accident conditions is assigned to the ERD, with assistance from the Health Physics Department Representative. lionitoring teams would be established under the direction of the Health Physics Department Representative. The teams are responsible for determining radiation levels around the plant and for monitor-ing individuals. The teams have various portable radiological instruments available for both routine and emergency use. There are also permanently mounted area radiation monitors which will sound an alarm at preset levels.

Respiratory protection equipment is available if entry is required into areas where the maximum permissible concentrations are exceeded.

Onsite emergency workers wear personal dosimeters to monitor their exposure.

The exposure guidelines used are consistent with th? Environmental Protection Agency Emergency Worker and Lifesavins, Activity Protective Action Guides (PAGs). The ERD may authorize volu'.teers to receive higher exposures according to these PAGs for extraordinary lifesaving missions. Otherwise, the normal quarterly and annual exposure limits will be observed.

2.13 Recovery and Reentry Planning The LACBWR Emergency Plan describes the general actions to be followed by the licensee for recovery and reentry operations. Guidelines have been developed for the protection of workers entering the affected areas of the plant. The ERD will organize the LACBWR staff, as appropriate, to ensure that the recovery effort is properly managed.

2.14 Exercises and Drills The LACBWR periodic drill program covering various aspects of the Emergency

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Plan is sumarized in the plan. Specific drills to be performed include the following:

• Fire drills in accordance with Fire Protection procedures

=*Medicaldrillsjannually

• Health Physics drills annually In adoition, the connu.dcations equipment is checked monthly, and the site sirens are tested annually. The LACEWR Emergency Preparedness Coordinator is responsible for the conduct of the Emergency Plan drills. . The planning, scheduling and coordination of exercises and drills are the responsibility of the Emergency Preparedness Coordinator. Following an exercise or drill, qualified observers will perform a critique. Overall results will be documented and reported to the Emergency Preparedness Coordinator. This report will include specific comments and reconnen-dations to improve the operation as necessary, 2.15 Radio 1cgical Emergency Response Training The Emergency Plan describes the licensee's pregram for training plant person-nel in emergency response duties. The extent of the training is dependent on an individual's assigned responsibilities but all personnel receive basic instructions in the fundamentals of the Emergency Plan.

Training is provid(d in emergency procedures, emergency radiological monitoring, general radiation protection, fire-fighting and first-aid.

Training for offsIte agencies will be provided by LACBWR personnel. This training will include such subjects as Emergeno Plan activation, notification; expected roles during an energency; radiation protection requirements during an emergency; and an indoctrination on the LACBWR Emergency Plan. Training for those personnel who may be expacted to enter the site will include an onsite familiarity briefing, site access procedures and applicable comunications pro-cedures and responsibilitics and iaterfaces.

2.16 Resporsibility for the Planning Effort: Development, Periodic Review and Distribution of Emergency Plans The DPC General Manager has the overall responsibility and authe,-ity for the operation of LACBWR and, as such, is responsible for emergency planning at the site. The individual responsible for the development, review, updating the Emergency Plan and the coorCr +1on with the offsite emergency planning effort with governmental agencies is the Emergency Preparedness Coordinator. The Emergency Preparedness Coordinator shall ensure that an independent review of the Emergency Plan and procedures is conducted annually by an internal o. ex-ternal organization not responsible for the Emergency Plan and procedures.

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The LACBWR Emergency Plan is reviewed and updated at least annually. The LACCWR Plant Superintendent shall ensure the evaluation and correction of the revievi findings. DPC/LACBWR management will retain a copy of the review finding for five years. Contact and notification lists sre reviewed quarterly-to ensure correct listing of telephone numbers and responsible individuals.

The Emergency Preparedness Coordinator will be responsible for the annual review of all written. support agreements with offsite agencies. New letters of agreement will be executed as required, based upon drill critiques, the devel-opment of,new capabilities, or revised agency responsibilities.

Revisions to the plan are controlled and distributed in accordance with plan document control procedures. Changes and revisions to the plan are issued to holders of controlled copies through the document control agreement.

3.0 CONCLUSION

S The LAC 8WR Emergency Plan has been reviewed against the acceptance criteria included in 10.CFR 50.47(b), Appendix i to 10 CFR Part 50 and NUREG-0654/ FEMA-REP-1. The review considered the 3ernanently shutdown and defueled status of the reactor, and the low likelilood of any credible accident resulting in radiological releases requiring offsite protective reasures. The evaluations were supported by licensee and staff accident analyses. The staff concludes that (1) the LACBWR Emergency Plan provides an adequate basis for an acceptable state of emergency preparedness, and (2) the Energency Plan, in conjunction with arrangements made with offsite response agencies, provides reasonable assurance that adequate protective measures can and will be taken in the event of a radiological emergency at the LACBWR.

Principal contributors: R.A. Meck P.B. Erickson l

! Dated: July 8, 1988 l

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