ML042540084
| ML042540084 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 09/03/2004 |
| From: | Bajaj S NRC/OCM |
| To: | |
| C. E. (Gene) Carpenter, IRDP/OCM | |
| Shared Package | |
| ML042530639 | List: |
| References | |
| Download: ML042540084 (25) | |
Text
EMERGENCY PREPAREDNESS AND EXCLUSION ZONE REQUIREMENTS FOR INDIAN NPPs S.S.BAJAJ S.S.BAJAJ AERB-USNRC DISCUSSION MEET, WASHINGTON, SEPTEMBER 2004
PROTECTION OF PUBLIC IN EVENT OF MAJOR ACCIDENTS IN NPPs, PROVIDED THROUGH:
- ZONING AROUND NPPs
- PREPAREDNESS FOR EMERGENCY COUNTERMEASURES IN PUBLIC DOMAIN
ZONES:
- EXCLUSION ZONE : 1.5KM/1.6 KM
- `STERILIZED ZONE : 5 KM (CONTROLLED POPULATION ZONE)
- EMERGENCY PLANNING ZONE : 16KM
PRIMARY : 8KM (16 SECTORS)
SECONDARY : 16 KM
- ENVIRONMENTAL SURVEY ZONE : 30 KM
REQUIRMENTS FOR EMERGENCY PREPAREDNESS AERB GUIDE AERB/SG/EP-1, EP-2
- PLANS TO BE IN PLACE BEFORE NPP OPERATION IS LICENSED.
- CATEGORIES OF EMERGENCIES:
EMERGENCY ALERT
PLANT EMERGENCY : TYPE A,B
SITE EMERGENCY
OFF-SITE EMERGENCY -PLAN 1, PLAN 2, PLAN 3
- OFFSITE EMERGENCY HANDLED BY STATE AUTHORITIES WITH TECHNICAL INPUT FROM OPERATING ORGANISATION
OBJECTIVES OF EMERGENCY INTERVENTION FORM, SCALE AND DURATION OF INTERVENTION SHOULD BE OPTIMISED:
- AVOID SERIOUS NON-STOCHASTIC EFFECTS (DOSE<THRESHOLD)
- LIMIT STOCHASTIC RISKS (NET POSITIVE BENEFIT TO INDIVIDUAL)
- LIMIT OVERALL INCIDENCE OF STOCHASTIC EFFECTS (COLLECTIVE DOSE -ALARA)
INTERVENTION LEVELS (IL) FOR COUNTERMEASURES DEFINED FOR THREE SPACE-TIME DOMAINS:
(DOMAINS OF DECREASING ORDER OF RADIOLOGICAL SEVERITY)
D3 LATE PHASE (B3)
D2 INT. PHASE (B2)
D1 EARLY PHASE (B1)
FAR FIELD (A3)
INT. FIELD (A3)
NEAR FIELD (A1)
DIST TIME DOMAIN 1 DOMAIN 2 DOMAIN 3
INTERVENTION LEVELS 1/5 CONTROL FOOD MINIMISE OVERALL INCIDENCE OF STOCHASTIC EFFECTS INGESTION 3
50/500 5/20 5/20 IODINE PROPH.
SHELTER CONTROL FOOD LIMIT STOCHASTIC RISK TO INDIVIDUAL INGESTION 2
500/2500 20/100 100/500 IODINE PROPH.
SHELTER EVACUATE AVOID SERIOUS NON-STOCHASTIC EFFECT TO INDIVIDUAL INHALATION EXT.GAMMA 1
IL mSv WB THYROID COUNTER-MEASURE OBJECTIVE OF COUNTER MEASURES MAJOR PATHWAY DOMAIN
USE OF INTERVENTION LEVELS IF ASSESSED RELEASE AND MEASUREMENTS CONFIRM THAT LOWER IL IN A DOMAIN IS NOT LIKELY TO BE EXCEEDED, THE RELEVANT COUNTERMEASURE MAY NOT BE INITIATED.
IF LOWER IL IS LIKELY TO BE EXCEEDED, INITIATE &
COMPLETE THE COUNTERMEASURE SUCH THAT UPPER IL IS NOT EXCEEDED.
DERIVED INTERVENTION LEVELS(DILS)
(DILS HELP DECIDE DOMAIN & COUNTER MEASURES)
EXTERNAL GAMMA DOSE RATE AT 1m ABOVE GROUND ACTIVITY CONCENTRATION IN FOODSTUFF & WATER
>24 HRS ACT. CONC. IN FOODSTUFF CONTROL OF FOODSTUFF 3
24
>24 HRS 10
>0.01 0.01 - 0.1 ACT.CONC IN FOODSTUFF ADM.STABLE IODINE SHELTER CONTROL OF FOODSTUFF 2
12 24 4
10
> 0.1 0.1 - 2 1 - 3 ADM.STABLE IODINE SHELTER EVACUATE 1
COMPLETION PERIOD (HRS)
PERIOD OF PERSISTENCE (HRS)
DIL DOSE RATE 1m ABOVE GR (mSv/hr)
COUNTER-MEASIRE DOMAIN
GROUND GAMMA DOSE RATE (1 meter from ground )
( if integrated dose exceeds 100 mSv)
-FOOD CONTROL (based on integrated dose)
-SHELTERING (within 24 hrs.)
-FOOD CONTROL (based on integrated WB dose)
-EVACUATION
( within 24 hrs.)
-SHELTERING
( within 12 hrs.)
-STABLE IODINE ADMN (at the earliest )
DOMAIN-3
- STABLE IODINE ADMINISTRATION (at the earliest )
DOMAIN-2 DOMAIN-1
`
0.01 (mSv/h) 0.1 (mSv/h) 1 (mSv/h)
& above COUNTERMEASURES TO BE IMPLEMENTED AT DIFFERENT GROUND GAMMA DOSE RATE IN THE OFF SITE AREAS
SYSTEM OF INITIAL NOTIFICATION &
OFFSITE RESPONSE ALERT SUBSTANTIAL MALFUNCTION OF PROCESS SYSTEM (SAFETY SYSTEMS &
CONTAINEMENT SYSTEM INTACT)
PLANT A EMERGENCY B
MALFUNCTION IN PROCESS SYSTEM, HIGH ACTIVITY IN PHTS
- EXTERNAL EVENTS, FORECAST OF
- CYCLONE, EARTHQUAKE EMERGENCY ALERT INITIAL OFF-SITE RESPONSE BY PUBLIC AUTHORITIES PROJECTED DOSES/
INTERVENTION LEVELS PLANT CONDITION EXAMPLES EMERGENCY TYPE (NOTIFICATION BY PLANT AUTHORITIES)
CONTD.
SYSTEM OF INITIAL NOTIFICATION &
OFFSITE RESPONSE (CONTD.)
EMERGENCY ORGANISATION ACTIVATED TO IMPLEMENT PROTECTIVE MEASURES AS PER IL GUIDELINES SUBSTANTIAL MALFUNCTION OF PROCESS SYSTEM, SAFETY SYSTEM &
CONTT SYSTEM OFF-SITE EMERGENCY
- SHELTERING
- SHELTERING &
THYROID BLOCKING
- EVACUATION EMERGENCY ORGANISATION ON STANDBY SUBSTANTIAL MALFUNCTION OF PROCESS & SAFETY SYSTEM (CONTAINMENT SYSTEM INTACT)
SITE EMERGENCY INITIAL OFF-SITE RESPONSE BY PUBLIC AUTHORITIES PROJECTED DOSES/
INTERVENTION LEVELS PLANT CONDITION EXAMPLES EMERGENCY TYPE (NOTIFICATION BY PLANT AUTHORITIES
OFFSITE EMERGENCY PREPAREDNESS RESPONSITIBILITIES OF PUBLIC AUTHORITIES ASSISTING PLANT AUTHORITIES FOR ENVIRONMENTAL MONITORINGS/ASSAYS OF FOOD SAMPLES NOTIFYING/ADVISING AFFECTED POPULATION REGARDING REQUIRED ACTIONS SHELTERING DISTRIBUTION OF STABLE IODINE EVACUATION - ARRANGING TRANSPORT, SUPPLIES OF FOOD &
ESSENTIALS REHABILITATION ENFORCING ACCESS CONTROL TO AFFECTED AREAS IMPOUNDING OF CONTAMINATED FOOD STUFF ENFORCING LAW & ORDER/SECURITY/TRAFFIC CONTROL MEDICAL CARE LIVESTOCK MANAGEMENT COMMUNICATIONS PUBLIC INFORMATION.
SECRETARY, MINISTRY OF ENVIROMENT AND FORESTS
SCOPE OF EMERGENCY PREPAREDNESS PLAN
- DEFINES:
EMERGENCY TYPES, PROTECTIVE ACTIONS, INTERVENTION LEVELS
EMERGENCY ZONES AND SECTORS
OFFSITE EMERGENCY ORGANISATION & RESPONSIBILITIES TO ESTABLISH, MAINTAIN AND IMPLEMENT EMERGENCY PLAN
ACTION PLANS FOR INDIVIDUAL FUNCTIONARIES
FACILITIES EQUIPMENT REQD FOR HANDLING THE EMERGENCIES
- DOES NOT COVER EMERGENCIES SUCH AS CYCLONE, FLOOD, SABOTAGE RESULTING RADIATION EMERGENCY IS IN SCOPE OF THIS PLAN
- PLAN COVERS AREA UPTO 16KM RADIUS; (IF NECESSARY EMERGENCY ACTIONS COULD BE EXTENDED BEYOND 16 KM)
TYPICAL DATA IN EMERGENCY RESPONSE PLAN DOCUMENT DEMOGRAPHIC DATA
SECTOR/DISTANCE-WISE LISTING OF VILLAGES, POPULATION (HUMAN AND CATTLE), TYPES OF HOUSES, MILK COLLECTION CENTRES
SECTOR/DISTANCE-WISE POPULATION CENTRES AND SHELTERING FACILITIES (SCHOOLS, REST HOUSES, HOSPITALS, COMMUNITY HEALTH CENTRES ETC.)
METEOROLOGICAL DATA (HISTORICAL)
SECTOR-WISE WIND SPEED, DIRECTION, SECTORS LIKELY TO BE AFFECTED, WIND ROSES FOOD INTAKE PATTERNS ROADS/ROUTES FOR EVACUATION; & TRAFFIC DIVERSIONS MEDICAL FACILITIES - SECTORWISE LISTINGS KEY PERSONNEL - LIST & CONTACT DETAILS LIVESTOCK POPULATION DATA VEHICLES AVAILABLE - PUBLIC/PRIVATE (SECTOR-WISE)
REQUIREMENT OF POLICE DEPLOYMENT
RESOURCES & FACILITIES MANPOWER FOR MANAGEMENT, HEALTH PHYSICS SURVEYS, DECONTAMINATION, FIREFIGHTING, FIRST AID, DRIVERS, TECH STAFF FOR RESCUE/RELIEF, MEDICAL, COMMUNICATIONS SIREN, EMERGENCY SURVEY VEHICLES EMERGENCY EQUIPMENT:
RADIATION/ACTIVITY MONITORS PROTECTIVE EQPT, EMERGENCY LIGHTS COMMUNICATION FACILITIES MEDICAL FACILITIES, INCL. HOSPITAL, AMBULANCE, HANDLING OF CONTAMINATED PERSONNEL ENVIRONMENTAL MONITORING & SAMPLING NETWORK &
DATA PROCESSING SYSTEM EMERGENCY SHELTERS EMERGENCY CONTROL CENTRE
MAINTENANCE OF EMERGENCY PREPAREDNESS
- EMERGENCY EXERCISES:
PLANT EMERGENCY : ONCE IN A QUARTER SITE EMERGENCY : ONCE IN A YEAR OFFSITE EMERGENCY : ONCE IN TWO YEARS
- EMERGENCY EQPT : PERIODIC CHECKS
- TRAINING : SITE/OFFSITE PERSONNEL, TARGET PUBLIC
- REVISE/UPDATE DOCUMENT EVERY 5 YRS
REQUIREMENTS RE EXCLUSION ZONE MINIMUM 1.5 KM RADIUS CALCULATED DOSES FOR LIMITING DBAs SHALL NOT EXCEED `REFERENCE DOSE LEVELS
100 mSv WHOLE BODY
500 mSv THYROID
LIMITING DBSs : INITIATING EVENT SIMULTANEOUS WITH IMPAIRMENT OF A MITIGATING SAFETY SYSTEM VIZ : LOCA + FAILURE OF ECCS LOCA + FAILURE OF CONTAINMENT ISOLATION
ASSUMPTIONS RE DOSE CALCULATION
EXPOSURE PERIOD : INDEFINITE
EXPOSURE PATHWAY : EXTERNAL + INHALATION (INGESTION EXCLUDED)
WORST METEOROLOGICAL CONDITIONS FOR FIRST TWO HRS, FOLLOWED BY AVERAGE METEOROLOGICAL CONDITIONS
PROPOSED REVISIONS IN EXCLUSION ZONE REQUIREMENTS
- REF. DOSE LEVELS:
- SAME AS BEFORE: 100mSv WB; 500mSv Thyroid
- HOWEVER INGESTION DOSES FOR FIRST FEW HOURS TO BE CONSIDERED (MILK ROUTE)
CONSEQUENTLY THYROID DOSE OF 500mSv APPORTIONED AS INGESTION : 300 mSv EXT + INHALATION : 200 mSv MINIMUM RADIUS : 1.0 KM
THANK YOU