Know Your Nuclear Power
Plant Emergency Terms

Familiarize yourself with these terms to help identify a
nuclear power plant emergency:

Notification of Unusual Event
A small problem has occurred at the plant. No radiation leak is expected.
No action on your part will be necessary.

A small problem has occurred, and small amounts of radiation could leak inside the plant.
This will not affect you and no action is required.

Site Area Emergency
Area sirens may be sounded. Listen to your radio or television for safety information.

General Emergency
Radiation could leak outside the plant and off the plant site.
The sirens will sound. Tune to your local radio or television station for reports.
Be prepared to follow instructions promptly.

Before a Nuclear Power Plant Emergency
Obtain public emergency information materials from the power company that operates
your local nuclear power plant or your local emergency services office.
If you live within 10 miles of the power plant, you should receive these materials
yearly from the power company or your state or local government.

Minimizing Exposure to Radiation

Distance - The more distance between you and the source of the
radiation, the better. This could be evacuation or remaining indoors to minimize

Shielding - The more heavy, dense material between you and
the source of the radiation, the better.

Time - Most radioactivity loses its strength fairly quickly.

During a Nuclear Power Plant Emergency

The following are guidelines for what you should do if a nuclear power plant emergency
occurs. Keep a battery-powered radio with you at all times and listen to the radio
for specific instructions. Close and lock doors and windows.

If you are told to evacuate:
∑ Keep car windows and vents closed; use re-circulating air.

If you are advised to remain indoors:
∑ Turn off the air conditioner, ventilation fans, furnace, and other air intakes.
∑ Go to a basement or other underground area, if possible.
∑ Do not use the telephone unless absolutely necessary.

If you expect you have been exposed to nuclear radiation:
∑ Change clothes and shoes.
∑ Put exposed clothing in a plastic bag.
∑ Seal the bag and place it out of the way.
∑ Take a thorough shower.

Keep food in covered containers or in the refrigerator.
Food not previously covered should be washed before being put in to containers.
∑ Seek medical treatment for any unusual symptoms, such as nausea,
that may be related to radiation exposure.


Within 15 minutes after classifying an incident, Millstone must notify designated
state and local government officials within the Emergency Planning Zone (EPZ),
via the use of a radiopager system, faxes and a telephone call back system.

At the onset of an emergency at the Millstone and every time a public protective
action has been implemented, public alerting sirens will be sounded in all
communities within the plantís EPZ, to alert residents to turn to an
Emergency Alert System (EAS) radio or television station for more information.
EAS messages would be broadcast from the State Office of Emergency Managementís
Emergency Operations Center (EOC).

In the unlikely event of an actual emergency at Millstone, the Joint Media Center
would be activated. This joint state and utility media center is staffed by the
Governorís Press Secretary, Connecticutís Emergency Response Communications Team
and liaisons from Millstone. Press releases, media briefings and press conferences
are coordinated through the joint media center. The Governorís Press Secretary
oversees the coordination and release of emergency public information from State
agencies, local governments and Millstone. The Joint Media Center provides specific
instructions and supplemental information to enhance the Emergency Alert System (EAS)
messages broadcast.

There are over 150 sirens located in the communities within Millstoneís EPZ.
These communities are East Lyme, Groton City, Groton Town, Ledyard, Lyme, Montville,
New London, Old Lyme, Waterford, and Fishers Island, NY. These sirens have been
installed to alert the public to a nuclear power plant emergency, natural disaster,
or other major emergency. Each communityís officials, as necessary, activate their
own sirens. Sirens alert the public to tune to their local emergency alert stations
(radio or television) for emergency information or instructions.

Primary EAS Radio Stations
WTIC-1080 A.M.
WDRC-1360 A.M.
WCTY- 97.7 F.M.
96.5 F.M.
102.9 F.M.
EAS TV stations
WFSB channel 3
WTNH- channel 8
WHPX- channel 26
WVIT-channel 30
WTIC-channel 61

Sirens are maintained and routinely tested.
Each year, a full-scale test of all sirens in the Millstone EPZ is performed.
In addition to the drills, many communities routinely test their sirens and some
use them as part of their fire warning systems.

Sirens can emit several different tones, each serving a different emergency function:
A steady tone for 3 minutes (that may be repeated) signals a natural or technological
disaster such as severe weather, chemical spills, floods, or a nuclear plant emergency.
A long wavering tone signals an enemy attack.
A short wavering tone signals a fire.
A public address loudspeaker can transmit announcements over a limited distance
from the communitiesí emergency operations center.