Comanche Peak Nuclear Power Plant. Emergency Planning

Transcription

1 Comanche Peak Nuclear Power Plant Emergency Planning

2 Comanche Peak Nuclear Power Plant Glen Rose, TX Two Unit Pressurized Water Reactors 1250 Megawatts Electrical per Unit

3 Squaw Creek Reservoir Dam Unit 2 Unit 1 Safe Shutdown Impoundment Circulating Water Inlet

4 Unit 2 Turbine Generator Unit 1 Turbine Generator

5 CPNPP Containment

6 CPNPP Plant Design 4 loop Westinghouse PWR CONTAINMENT TURBINE GENERATOR STEAM GENERATOR REACTOR VESSEL TO SQUAW CREEK RES.

7 ABOUT COMANCHE PEAK (CPNPP)

8 CPNPP Timeline 1972 Decision to build Nuclear Units 1973 General Contractor Hired 1975 Containment Foundations Completed 1977 Main Dam Completed 1978 Containment Buildings Formed / Unit 1 Reactor Vessel Arrived 1979 Containments Topped 1983 Nuclear Fuel Arrived for Unit Unit 1 Completed Major Testing 1990 Unit 1 Licensed for Fuel Load (February) 1990 Unit 1 Commercial Operation (August) 1993 Unit 2 Commercial Operation (August) 1979 Three Mile Island

9 Commenced Evacuation in 1974

10 Dinosaur Tracks Discovered DinosaurTracks

11 Base of Reactor Building

12 Reactor Building Reinforcement Steel Placed in Containment Dome

13 Unit 1 Reactor Vessel Bringing in Reactor Vessel

14 Unit 2- Placing on Top Topping Unit 2

15 Construction for Unit 1 Completed in 1984

16 New Fuel Inspection

17 Spent Fuel Inspection

18 Unit 1 Fuel Load February 1990

19 Unit 2 Commercial Operation August 1993 Unit 1 Commercial Operation August 1990

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21 CPNPP Emergency Response Facilities CPNPP Control Room Operations Support Center Technical Support Center Emergency Operations Facility Joint Information Center

22 Offsite Response Organizations Hood County EOC Somervell County EOC District EOC in Mineral Wells State EOC in Austin

23 Reception Centers Registration with General Information and with the Red Cross. Monitor Vehicles and Personnel for Radiation STEPHENVILLE BENBROOK CLEBURNE

24 EMERGENCY CLASSIFICATION LEVELS Unusual Event Minor Event Notifications Made No Actions Required Offsite Alert Minor Event (could affect a safety system) Notifications Made Staff CPNPP Emergency Facilities Low Level Actions at Local Level

25 EMERGENCY CLASSIFICATION LEVELS Site Area Emergency More Serious Event (No Radioactive Release) Notifications Made CPNPP, State & Local Facilities Activated CPNPP Site Evacuation General Emergency Serious Event (Release or Potential for One) Notifications Made CPNPP, State & Local Coordinated Response Protective Action Recommendations Issued

26 PROTECTIVE ACTION RECOMMENDATIONS (PAR s) Based on EPA Guidance 1 Rem TEDE 5 Rem CDE Evacuation Sheltering Monitor and Prepare

27 ALERTING AND INFORMING THE PUBLIC 10 Mile Emergency Planning Zone 31 Protective Measure Zones (Geographical Boundaries)

28 ALERTING AND INFORMING THE PUBLIC 72 Sirens - Activated by Local Officials Reverse 911 Coming Soon IPAWS- Integrated Public Alert & Warning System - FEMA

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30 2017 Events in the U.S. Unusual Events 19 Minor Event Notifications Made No Actions Required Offsite Alerts 4 Minor Event (could affect a safety system) Notifications Made Staff CPNPP Facilities Low Level Actions at Local Level

31 2017 Events in U.S. Unusual Events Description # of Events Fire Alarm in Containment 5 Toxic Gas Leaks 4 Acts of Nature 4 Loss of Offsite Power 2 Security Condition 2 Miscellaneous 2

32 2017 Events in U.S. Alerts Description # of Events Fire in Safety Related System 2 Toxic Gas 1 Loss of Parameter Control to 1 Prevent Criticality in the Research Test Reactor Area

33 Emergency Action Levels A pre-determined, site-specific, observable threshold for an Initiating Condition that, when met or exceeded, places the plant in a given emergency classification level. Three Charts Hot Chart >200 o F (RCS Temperature) Cold Chart <200 o F (RCS Temperature) All Conditions Emergency Action Level Technical Bases Document

34 Emergency Action Levels HU4.1 Unusual Event A FIRE is not extinguished within 15 min. of any of the following FIRE detection indications (Note 1): Report from the field (i.e., visual observation) Receipt of multiple (more than 1) fire alarms or indications Field verification of a single fire alarm AND The FIRE is located within any Table H-1 area.

35 Emergency Action Levels Table H-1 Fire Areas Table H-1 applies to 1 Containment buildings and areas housing 2 Safeguards Building equipment needed for safe 3 Auxiliary Building shutdown. 4 Electrical & Control Building 5 Fuel Building 6 Service Water Intake Structure 7 Diesel Generator Building 8 Normal Switchgear Rooms 9 CST 10 RWST

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37 Drills and Exercises Communication Drills (Monthly) Fire Drills (Quarterly +5) Emergency Medical Drills (Annual +5) Radiological Monitoring Drills (Annual +5) Health Physics Drills (Twice a Year) Team Exercises (4-5 a Year)

38 Emergency Team Exercises Team Exercises CPNPP has four Emergency Response Teams (340 total members) Once a quarter a Emergency Response Team has an exercise to show proficiency in their Emergency Response Position. Every odd year (2019) CPNPP, Hood / Somervell Counties and the State of Texas performs an exercise which is evaluated by the NRC and FEMA.

39 Emergency Team Exercises Team Exercises Emergency Planning develops an exercise. Typical exercise consist of the following: Current status of the Units Meteorological Conditions Event Summary

40 Exercise Information CURRENT STATUS Unit 1 and Unit 2 at 100% power RHR PMP 1-02 is Out of Service for 6.9KV Breaker Servicing. Radwaste group is performing resin discharge from CVCS Demineralizer to the Spent Resin Storage Tank. METEOROLOGICAL CONDITIONS Temperature is 86 degree F and with a forecast high of 105 degreee F. Wind speed is 15 mph from direction 220 degrees. Stability class is E. A slight cold front is forecast for later in the day.

41 Narrative Summary Typical Scenario UNUSUAL EVENT - A 40-gpm reactor coolant system (RCS) leak occurs inside U1 Containment for greater than 15 minutes ALERT - Large Break Loss of Coolant Accident (LBLOCA) occurs in U1 Containment. SITE AREA EMERGENCY - The U1 Containment High Range radiation monitors (CTE-116/CTW-117) rise to approximately 95 R/hr. Greater than 85 R/hr (value established sufficient to drive later required PARs) (, FS1.1). GENERAL EMERGENCY - Unit 1 Containment Emergency Air Lock Radiation Levels increase to 275 mrem/hr. A report of steam coming from the area of the U1 Emergency Airlock enclosure.

42 Radiological Data

43 Emergency Plan Objective During a radiological emergency, protect the health and safety of the: General Public; Site Visitors; Temporary Employees; and Station Employees.

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