ML20151T099
| ML20151T099 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 08/08/1988 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20151T094 | List: |
| References | |
| NUDOCS 8808160255 | |
| Download: ML20151T099 (8) | |
Text
,
- s r.acg'o,, UNITED STATES
[ g NUCLEAR REGULATORY COMMISSION D p WASHINGTON, D. C. 20555
%,....+/ l SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION j SUPPORTING APPROVAL OF !
EMERGENCY PLAN, REVISION 10 i LA CROSSE BOILING WATER REACTOR (LACBWR)
DOCKET NO. 50-409 ;
l
1.0 INTRODUCTION
By letter dated September 29, 1987 as revised by letters dated April 15 and May 18, 1988, Dairyland Power Cooperative (DPC or the licensee) submitted a 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-not-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 sossible consequences are discussed in the Emergency Plan. All irradiated fuel aas 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 radioactive materials to the environment in quantities which would require protective actions for the public.
No$$k6$ f
The NRC staff evaluated the offsite radiological consequences of potential accidents involving the fuel stored in the FESW. In the analysis, the 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 plant containing 100 fuel pins, were assumed damaged; no filters for iodine removal were operating; and no fuel pool water was missing. The staff concluded that in this scenario, doses at the 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 acceptance criteria values from the NRC Standard Review Plan (NUREG-0800) Section 15.7.5 on spent fuel cac' drop accicents.
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 dose.
2.0 STAFF EVALUATION 2.1 Emergency Classification System Incidents at nuclear power plants are categorized into one of four emergency classes according to a graduated level of severity; i.e., Notification of Unusual Event (NOVE), Alert Site Area Emergency, and General 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 Storage (SAFSTOR) which could result in an emergency classification more severe than an Alert. A list of initiating conditions and emergency action levels associated with pcssible events at LACBWR which would result in the declaration of a NOUE or Alert is given in Table D-1 of the Emergency Plan.
2.2 Emergency Facilities and Equipment The LACBWR Emergency Plan identifies facilities which are intended to be used as response centers in the event of an emergency situation. These include the control room and the training room adjacent to the control room. The training room is the onsite alternate location in the event the control room is inaccessible. The communication capabilities for these facilities include commercial telephone service, private automatic branch exchange (PABX),
microwave tic trunk, nobile radio system, the Emergency Notification System (ENS), and a Health Physics Network System Circuit.
Assessnent systens and equipment include post accident sampling, effluent monitors, an area radiation monitoring system, a process radiological monitor-ing system, a radiological counting room which is used for radiochemical determinations, portable survey instruments, and a radiological emergency kit located in the conference room. Protective clothing, respiratory protection, air samplers, and other standard radiological equipnent and supplies are avail-able for emergency use. Provisions have been made to periodically check the equipment and to maintain adequate supplies, l
l 1
2.3 Emergency Communications The licensee's comunications capabilities include e commercial tstlephone system, a LACBWR PABX with ties to the commercial system, a DPC microwave trunk and a radio system with mobile units. The LACBWR PABX telephone system is der.igned to remain. operable in an emergency situation with emergency power proviac4 from diesel generators. The radio system can be used in an emergency to establish communications through micro-wave, radio, PABX or 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 the 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, Wisconsin, 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. Selected plant persennel receive first-aid training on an annual basis.
2.5 Assignment of Responsibility (Organizational Control)
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 initial evaluation of the inefdent, performing any imediate operations which are necessary to mitigate the conseqrences of the incident, and activating the Emergency Plan. The senior ment >er of the operations staff, the Shif t i Supervisor, assumes the position of Emergency Response Director (ERD). Thus,
- there will be a qualified ERD on duty at all times. The licensee will maintain
. a minimum four person shift organization. The ERD has overall responsibility for coordinating additional company resources.
The Vernon County Sheriff's Department is the local alerting agency which will be notified by the ERD in the event of any emergency at LACBWR. The Sheriff's Office can be notified on a 24-hour per day basis. 'Jpon notification from the ERD, the Sheriff's Department would, if appropriate, provide local emergency assistance. The Vernon County Director of Emergency Government administers the Vernon County Nuclear Facility Response Plan and is responsible for activating the plan in censultation with the Sheriff's Office. The Sheriff i j is responsible for notifying, as appropriate (a) surrounding county local law i
4 e
4 enforcement agencies;Department (c) State of Wisconsin (b) Vernonof County Director Emergency of Emergency)
Government; Government; (d Houston County, Minnesota Sheriff's Office. The revised Emergency Plan includes letters of agreement addressing medical and firefighting services in support of LACBWR.
2.6 Onsite Emergency Organization The onsite emergency organization 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 recomendations 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 normal operations shift staff is augmented in an emergency by other members of the plant staff organization. Appropriate individuals from the licensee's 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 nortral plant operations staff in emergency mitigation and recovery efforts. Agreements with local service support organizations provides for irnmediate 24-hour per day, on-call response. Other organizatiens having an emergency response role include Federal, state and local governmental agencies.
The lead local agencies for offsite support are the Vernon County Sheriff's Office and the County Director of Emergency Government. Upon notification of an emergency at LACBWR, the Sheriff's Office would make appropriate t notifications and, if appropriate, the Vernon County Director of Emergency Government in consultation with the Sheriff would activate the Vernon County ;
Nuclear Facility Response Plan. )
l 2.8 Nctification Methods and Procedures The licensee has established an emergency classification seneme which results in the declaration of an emergency, that is, a Notification of Unusual Event or Alert, whenever certain specified emergency 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 Wisconsin and the NRC are notified.
Follow-up emergency messages would be provided to the Sheriff's office.
In the Emergency Plan the licensee has comitted to notify Vernon County, Wisconsin and the 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 which the Shift Supervisor recognizes that events have occurred which make the declaration of an emergency appropriate. Several warning signals and alarns are available to alert onsite personnel of an emergency. The shift staff will contain personnel for augacMation 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 permanently shutdown and defueled status 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 resuit in any offsite ,
releases of radioactive materials at levels which would require the implementation of offsite protective actier.s such as evacuation or shelter for the public.
2.10 Accident Assessment The systems and eouioment for assessing and monitoring the actual or >otential 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 throu0hout the plant. ARMS measures the ambient radiation level in each monitored area and is used for perJonnel radfation protection purposes and to alert plant staff to the release or radioactive material within a plant structure. In addition, high range containment building monitors are capable of monitoring radiation levels specified fer post-accident conditions.
LACBWR has two post-accident sampling systems capable of providing both parti-culate and gaseous sanples. Portable survey and dose rate instruments are available for routine radiological monitoring and for use in emergencies. The plant has a radiological counting laboratory with equipment for radiochemical sample analysis.
~
P.eal-time radiological release information provided by the stack effluent monitoring system along with estimated noble gas inventories and measured atmospheric discer: fen fact'!rs for the nearest site boundary location are used to estin tw offsite deses. A member of the Health and Safety Department is responsible for initial offsite dose assessment associated with the actual or potential radiological consequences of 3.n accident. The Health Physics Department representative is responsible fer working with the state government regarding radiological releases and monitoring activities. Plant personnel have been designated to relieve the on-shift staff of these emergency organization positions for long-term response. The plant emergency organi-zation also includes emergency radiological teams for performing radiation surveys and other radiation protection functions. Tecinical assistance for the plant staff is available thPough the DPC support organization which includes specialists in dose assessment and meteorology.
6-2.11 Protective Response The protective response actions for onsite personnel, including plant staff, visitors and contractors, are described in the plan. Onsite personnel are altrted that an emergency condition exists by the sounding of three sirens, located in the reactor building, turbine building and outside area. A plant-wide paging system incorporated into the PABX can be activated to call personnel or to issue instructions. Visitors and other non-company personnel are briefed on the mt:aning 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 persens and protective actions to be taken.
2.12 Radiological Exposure Control Management of the exposure rentrol program for onsite emergency workers during accident conditions is assigned to the ERD, with assistance from the Health Physics Department Resresentative. Monitoring teams would be established under the direction of the lealth 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 the Environmental Protection Agency Emergency Worker and Lifesaving Activity Protective Action Guides (PAGs). The ERD may authorize volunteers 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 prctection 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
Plan is sumarized in the plan. Specific drills to be performed include the following:
' Fire drills in accordance with Fire Protet. tion procedures
- Medical drills. annually
- Health Physics drills annually In addition, the comunications equipment is checked monthly, and the site sirens are tested annually. The LACBWR 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 recomen-dations to improve the operation as necessary.
2.15 Radiological Eme*gency Response Training The Emergency Plan describes the licensee's program 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 provided in emergency procedures, emergency radiological monitoring, general radiation protection, fire-fighting and first-aio'.
Training for offsite agencies will be provided by LACBWR personnel. This training will include such subjects as Emergency Plan activation, notification; expected roles during an emergency; radiation protection requirements during an t
emergency; and an indoctrination on the LACBWR Emergency Plan. Training for those personnel who may be expected to enter the site will include an ensite familiarity briefing, site access procedures and applicable comunications pro-cedures and responsibilitics and interfaces. ~
i 2.16 Respcnsibility for the Planning Effort: Development, Periodic Review and Distribution of Emergency Plans The DPC General Manager has the overall responsibility and authority 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 coordination 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 or ex-ternal organization not responsible for the Emergency Plan and procedures.
l
The LACBWR Emergency Plan is reviewed and updated at least annually. The LACBWR Plant Superintendent shall ensure the evaluation and correction of the review findings. DPC/LACBWR management will retain a copy of the review finding for five years. Contact and notification lists are 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 LACBWR Emergency Plan has been reviewed against the acceptance criteria included in 10 CFR 50.47(b), Appendix E to 10 CFR Part 50 and NUREG-0654/ FEMA-REP-1. The review considered the permanently shutdown and defueled status of the reactor, and the low likeliaced of any credible accident resulting in radiological releases requiring offsite protective measures. 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 Emergency Plan, in conjunction with arrangements maide with offsite response agencies, provides reaser.able 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 Dated: July 8, 1988 l
l 9
_ _ . _ _ _ _ _ - - . - - _ _ _ - _