Emergency Plan

Question 1

Safety Event classification

Answer 1

All emergency situations and accidents not related to the reactor and doesn’t have the potential to escalate to more severe emergencies.

It’s three emergencies are:

a) Personal injury with or without radiological complications.
b) Minor facility or individual contamination.
c) Minor fire or explosion unrelated to the reactor or the reactor control system.

Question 2

Unusual Events classification

Answer 2

All emergency situation an accident having the potential to escalate significantly nuclear reactor related threats, but can be recognized on time to prevent escalation or mitigate the consequences

It’s seven emergencies are:

a) Reactor effluent alarm with a measured or projected discharge concentration that would cause greater than or equal to 15 mrem whole body accumulation at the site boundary in a 24 hour period.
b) Significant fire or explosion unrelated to the reactor or the reactor control system.
c) Civil disturbance or bomb threat directed at the facility.
d) Earthquake.
e) Failure of an in-core reactor experiment or sample being irradiated with a minor release of radioactive material.
f) Sounding of the evacuation alarm.

Question 3

Alert event classification

Answer 3

An alert event is any physical occurrence within the facility that constitutes an onsite emergency but which is unlikely to create an offsite hazard.

It’s eleven emergencies are:

a) Reactor effluent alarm with a measured or projected discharge concentration that would cause greater than or equal to 75 mrem whole body accumulation at the site boundary in a 24 hour period.
b) Measured or projected radiation levels at the site boundary of 20 mrem/hr or a 100 mrem projected thyroid dose in one hour.
c) A fire or explosion in a reactor-related area that cannot be immediately extinguished and which has the potential of adversely affecting the reactor or a reactor safety system.
d) A significant fire or explosion in the Nuclear Science Center building outside the reactor operating areas that cannot be extinguished by the Pullman Department within 10 minutes after their arrival at the facility and which has a significant potential of adversely affecting the reactor or the reactor safety system.
e) Any release of radioactive material in the pool room which causes a CAM alarm with a measured pool room air radionuclide concentration of 0.01 μCi/mL or greater.
f) Exceeding a Safety Limit.
g) Transient Rod stuck in the UP position.
h) Low pool level alarm with the visual observation indicating an abnormal loss of water at a rate exceeding the pool makeup capacity or a pool level alarm plus pool room radiation alarm during non-working hours.
i) Sabotage of the reactor with attendant release or probable release of radioactive materials.
j) Theft or attempted theft of reactor fuel.

Question 4

Safety event correction action

Answer 4

1) shut down reactor if appropriate
2) fire/explosions: Pull “red local”alarm and call fire department. Evacuate in not alarming
3) minor fire/explosions ( no radioactive contamination): attempt extinguishing with appropriate actions to minimize spread
4) significant personal injuries (w/out contamination): call 911 and request ambulance transportation
5) administer first aid as appropriate
6) if person injured is contaminated: only decontaminate if it does aggravate the injury. Transport using appropriate contamination control and isolation methods
7) If the injured is being transported to the hospital call Pullman’s regional Hospital to alert them of NSC personal and inform radiological complications
8) For minor facility contamination isolate the area and instigate appropriate decontamination procedures

Question 5

Unusual event corrective actions

Answer 5

1) shutdown the reactor
2) for significant earthquakes, bomb threats, or significant radiological hazard to facility personnel—activate evacuation alarm and evacuate facility
3) perform corrective actions specified for safety events

Question 6

Alert event corrective actions

Answer 6

1) shut down reactor
2) evacuate building and activate evacuation alarm
3) Mobilize emergency organization
4) Perform corrective action specified for safety and unusual events.