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Be Prepared

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Know Your EPZ and
Reception Center

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Follow Emergency Instructions

More Information

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Be Prepared

Develop an Emergency Plan and Kit

It is important to know which types of disasters could affect your area. Your Emergency Plan will have everything from emergency contact information to medical information, the emergency planning zone (EPZ) you live in, information about evacuation and sheltering-in-place, and more.

Your Emergency Kit should have supplies on hand to last at least three days for each family member, in durable and easy-to-carry bags or containers, such as backpacks, duffel bags, or suitcases.

Start developing your Emergency Plan and building your Emergency Kit today. Download the CTPrepares Mobile App to build your own emergency plan(s), keep track of emergency kit supplies, stay connected to friends and family, and receive emergency information and alerts. Or, visit the CT REP Education and Public Information website to view available resources and tools.

Items to include:

  • First aid kit (including list of allergies, extra contact lenses, glasses)
  • Non-perishable foods and a can opener
  • Matches/lighters
  • Water (1 gallon per person per day)
  • Medications
  • Flashlight and extra batteries
  • Photo ID
  • Local map
  • Potassium iodide (KI)
  • Important documents, cash, credit cards, and checkbook
  • Clothing and blankets
  • Phone and phone chargers
  • Tools
  • Items for individuals with critical needs (e.g., special medical equipment)
  • Personal items
  • Infant/children supplies (e.g., diapers, milk/formula)
  • Pet supplies
Build an Emergency Kit Infographic. Customize Your Kit. Pack Enough for 3 days. Refresh twice a year.

Develop a Pet Emergency Plan and Kit

Not all shelters and hotels accept pets. Plan ahead to stay with family, friends, or pet-friendly locations if you need to evacuate your home. If a hotel has a no-pets policy, ask the manager if the hotel can waive the policy during the emergency. Deciding in advance what to do with your pet during an emergency can save its life.

You should never have to hesitate to evacuate your home in an emergency because you don’t want to leave your pets behind. Start your pet plan and kit today.

pet icon
  • Microchip your pet
  • Pet carrier
  • Non-spill water and food bowls
  • Pet food and water for at least three days
  • Pet vaccination/medical records
  • Medications
  • Collar with ID tag and leash (include backups)
  • Familiar items/toys/bedding
  • Plastic bags / litter
  • Photograph of your pet
  • Extra newspaper/disinfectant

Go to FEMA’s website, Prepare Your Pets for Disaster for additional information and guidance, or CDC’s Pet Safety in Emergencies webpage.

Register as an Individual with Critical Needs

If you are an individual with critical needs and would need evacuation assistance, complete and return the Functional Needs and Assistance Survey Card that is mailed to you on annual basis, or contact your locality to learn what options are available. Residents needing evacuation assistance must complete and mail, at no cost, the survey card every year. The survey should only include information regarding impairments that will impede self-evacuation from your home. Survey information is given to your city or town's emergency management official to ensure information is up-to-date and, if needed, provide assistance in the event of an emergency or evacuation.

Locality and state contact information is provided under More Information below. You may also download the Functional Needs and Assistance Survey Card from the CT REP Education and Public Information website.

Preparing for a Radiological Emergency

The Nuclear Regulatory Commission (NRC) defines four emergency classifications that could occur at a nuclear power station. Dominion Energy would contact federal, state, and local authorities in each of the following situations:

  • Unusual Event is the least serious level, indicating a potential or minor event at the station. Radioactive release, if any, is minimal and far below Federal guidelines. There is no impact to public and no public action needed. Support from state and local emergency officials is not needed.
  • Alert is a more serious level, indicating an event that may affect station safety. Radioactive release, if any, is minimal and far below Federal guidelines. There is no impact to public and no public action needed. State and local emergency officials will share information with the public as needed.
  • Site Area Emergency is a serious level, indicating an event that may affect or has affected plant safety. Radioactive release, if any, should remain under Federal guidelines. When alerted, you should tune in to local radio and television stations for information and instructions. State and local emergency officials may recommend actions for the public to take.
  • General Emergency is the most serious level that involves a serious event that may affect or has affected plant safety. Radioactive release, if any, may exceed Federal guidelines. When alerted, you should tune in to local radio and television stations for information and instructions for protective actions. State and local emergency officials will direct actions for the public to take.

Nuclear power plants are designed, engineered, and operated to adhere to stringent safety and security regulations and practices. Multiple layers of safety systems and structures protect the plant and community from an emergency:

  • Reactor safety systems with separate, redundant backup systems to provide reliable protection
  • Reinforced concrete and steel designed containment buildings to withstand tremendous forces (e.g., hurricanes, tornadoes, earthquakes, and external explosions) 
  • Regularly exercised and comprehensive emergency plans and procedures
  • Highly skilled, experienced, and continuously trained plant employees
  • Highly secured, 24 hours a day, 7 days a week
  • Comprehensive security plans managed by an on-site security force
  • Advanced physical security and monitoring systems

There are three fission product barriers (also referred to as protective barriers) that prevent radioactive fission products to release into the environment: (1) fuel cladding, (2) reactor vessel and cooling system, and (3) containment.

  1. Fuel Cladding: The fuel cladding serves as the first and primary fission product barrier. Fuel cladding is the outer layer of the fuel rods, standing between the reactor coolant and the nuclear fuel (i.e., fuel pellets). It prevents corrosion of the fuel.​
  2. Reactor Coolant System: The reactor coolant system acts as the second fission product barrier. Within the large steel reactor vessel, the reactor coolant system includes the pipes and components (e.g., reactor vessel, coolant pumps and piping) that supports the transfer and process of reactor coolant (water) to remove heat from the reactor core.
  3. Containment Building: The containment building acts as the third fission product barrier. The containment is a concrete shield building and steel containment vessel that houses the reactor vessel, steam generators, and piping of the reactor coolant system.
barriers graphic

Stay Informed

Stay Up-to-Date and Listen for Emergency Alerts and Notifications

Local and state officials will alert the public of an emergency at Millstone Power Station. Several methods may be used to alert and notify people including: emergency sirens, the Emergency Alert System (EAS) broadcast on local radio and television, and CT Alert.

Emergency sirens are an outdoor warning system located throughout the 10-mile area (also known as plume emergency planning zone [EPZ] or plume exposure pathway EPZ) around the Millstone Power Station. These sirens are maintained and routinely tested throughout the year by Millstone Power Station.

In the event of an emergency at Millstone Power Station, you will hear a siren and/or receive a CT Alert (if you have subscribed), alerting you of the emergency and to tune in to local radio or television station for further information and instruction. The sirens will sound a steady tone for three minutes (that may be repeated). Sirens are not an immediate signal to evacuate. It means tune in to local radio or television station and listen for information and instructions on what to do. A list of local television and radio stations is provided below.

CT Alert is the State of Connecticut’s emergency notification system to alert residents anywhere in the state about life-threatening emergency conditions. By signing up for CT Alerts and keeping your contact information up-to-date, you will receive alerts and other essential information quickly in an emergency to any communication device you use, such as cell phone, email, text message, or certain hearing-impaired devices.

There are multiple ways for you to stay informed before, before, during, and after a disaster. Go to DEMHS Stay Informed to learn more.

Emergency Alert System Radio / TV Stations
Radio TV Station
Norwich Hartford Norwich/Hartford
WCTY 97.7 FM
WNLC 98.7 FM
WWRX 107.7 FM
WNPR 89.1 FM
WKNL 100.9 FM
WQGN 105.5 FM
WPKT 90.5 FM
WMOS 102.3 FM
WBMW 106.5 FM
WMRD 1150 AM
WXLM 980 AM
WLIS 1420 AM
WICH 1310 AM
 
 
 
 
 
WTIC 1080 AM
WDRC 1360 AM
WTIC 96.5 FM
WDRC 102.9 FM
 
 
 
 
 
WFSB Ch. 3
WTNH Ch. 8
WHPX Ch. 26
WVIT Ch. 30
WTIC Ch. 61
 
 
 
 

Additional Emergency Information Communications

United States Coast Guard (USCG): The USCG will broadcast waterway advisories for the emergency planning zone via very high frequency (VHF) marine radio. For waterway questions, contact USCG Sector Long Island by phone 203-468-4401 or via VHF radio channel 16.

Connecticut Network (CT-N): In an emergency, CT-N will provide emergency public information directly from the State Emergency Operations Center.

CT 2-1-1: In an emergency, CT 2-1-1 will serve as the state information hotline. Dial 2-1-1 from anywhere in Connecticut 24 hours a day. Multilingual specialists are also available. If you are outside of Connecticut or have a problem using the 2-1-1-number, dial 800-203-1234.

Parents of School Children

Emergency officials will advise school administrators on what action to take. Parents need to listen to local media for updates on school status and instruction.

Each school year, review your child’s emergency school plan(s) and procedure(s) on how you will be notified of your child’s status in an emergency.

Emergency Planning Zone (EPZ) and
Host Community Reception Center

Communities located within 10 miles of Millstone Power Station are included in the 10-mile EPZ. Following a General Emergency, people in parts of the 10-mile EPZ may be directed to take protective actions such as sheltering-in-place, evacuation, ingestion of potassium iodide (KI) if recommended, or simply instructed to monitor and prepare.

Below are the 10 communities within approximately 10-miles of Millstone Power Station:

  • Ledyard (in blue) – Consists of areas south of Hurlbutt Rd., Whalehead Rd., and Sandy Hollow Rd. to Route 117
  • The Lymes (in purple) – Consists of all of East Lyme, Old Lyme, and areas of Lyme east of Route 156 and south of Beaver Brook Rd.
  • Montville (in yellow)  – Consists of areas south of Grassy  Hill Rd., Chesterfield Rd., and Route 163, between Glendale Rd. and Chapel Hill Rd.
  • New London (in orange) – Encompasses all of New London.
  • The Grotons (in green) - Encompasses all of Groton Town and Groton City.
  • Waterford (in yellow) – Encompasses all of Waterford.
  • Fishers Island (in orange) – Encompasses all of Fishers Island.
Map of the 10-mile Emergency Planning Zone (EPZ) around Millstone Power Station. Includes Lyme, Old Lyme, East Lyme, Waterford, Montville, New London, Ledyard, Groton, Groton City, and Fisher's Island.

The 10-mile Emergency Planning Zone (EPZ) includes all or part of the ten towns and cities and the waters within approximately 10 miles of Millstone Power Station.

If an evacuation is ordered, listen closely to emergency officials to see if your area of town should evacuate and for instructions about reporting to an evacuation reception center. Each community is designated to evacuate to a reception center in one of five Host Communities (New Haven, West Hartford, Mansfield/UCONN/Storrs, Willimantic/Windham and Norwich). Officials may have important information about evacuation routes or may re-direct your town to an alternative Host Community.

Learn about your evacuation reception centers under Report to Your Reception Center in an Evacuation below.

Take Action

If Your Emergency Planning Zone is Told to Evacuate:

  • Stay calm - review your emergency plan. In an event, you will have time to take necessary action.
  • Monitor local EAS radio or television stations.
  • Grab your emergency kit. Grab all essentials, including personal items and devices for you, your family, and pet(s). You may be away from home for several days.
  • Keep informed. Know what to do when you hear a siren – tune in to local radio or television station for emergency information and instructions on what to do, such as whether to shelter-in-place or evacuate via designated evacuation routes.
  • Limit telephone use to emergencies only, keep the lines open for official use.
  • Check on family and friends who may need assistance.
  • Know your children’s school emergency plan. Review emergency school plan(s) and procedure(s) each school year with your child.
  • Secure your home and turn off electrical appliances. Lock doors and windows and turn off electrical appliances (except refrigerator and freezer).
  • Drive safely and report to your reception center. If directed, report to your assigned reception center for contamination monitoring and, if recommended, KI. Close windows, vents, and turn off air conditioner and heater.
  • If registered as an individual needing evacuation assistance, wait for instructions from your locality.
  • If you are on the waterways, you may not be allowed to return to your original point of departure. Follow the guidance of the U.S Coast Guard, harbor master, and local emergency management officials. You may be directed to another port where transportation can be made available to reception centers.
  • Return home when directed. When the emergency has ended, emergency officials will provide instructions for returning home.
  • Questions during an emergency and more information, contact CT 2-1-1 and/or visit the CT REP Education and Public Information website.

If Your Emergency Planning Zone is Told to Shelter-in-place:

  • Stay calm - stay inside. Stay in the middle of the building, as much as possible, and close all windows and doors. Prepare to stay inside for at least three days.
  • If driving, close windows and vents and turn off air conditioner and heater.
  • Bring pets and livestock inside. Plan for at least 3 days.
  • Close all windows and doors, and turn off all devices that draw outside air, if possible. You can use fans or heating devices inside the home to keep warm or cool.
  • Extinguish stove/fireplace fires and close flues when possible.
  • Keep informed and listen to instructions. Continue to monitor local radio or TV and follow instructions. Do not evacuate unless directed.
  • Limit telephone use to emergencies only, keep the lines open for official use.
  • For questions during an emergency and for more information, contact CT 2-1-1 and/or visit the CT REP Education and Public Information website.

If you must go outside, cover your mouth and nose with a cloth (e.g., folded handkerchief or towel) to help prevent breathing in radioactive particles. Move quickly and limit outdoor exposure time to as little as possible. Remove the outer layer of your clothing when you return inside and place in a plastic bag. Wash all exposed body parts with lots of soap and lukewarm water to remove potentially radioactive particles from your body. These steps will help reduce your exposure to harmful radioactive material. For more tips and guidance on self-decontamination, visit CDC’s How to Self-Decontaminate after a Radiation Emergency.

Follow Emergency Instructions

Report to Your Reception Center in an Evacuation

Each community within 10 miles of Millstone Power Station has been assigned a Reception Center that is at least 15 miles from the power station. If told to evacuate, you may be instructed to go to your reception center where designated personnel will monitor for contamination and if required, assist in decontamination of people, pets, and vehicles. Other services at a Reception Centers include family reunification, crisis counseling, basic emergency medical services, potassium iodide (KI) tablets if you have not yet obtained your KI, and American Red Cross services (e.g., connection to shelters).

Use the primary evacuation route described below to get to your assigned Reception Center, unless otherwise directed to use another alternative route instead. Or, view the evacuation route information in the Millstone Power Station EPZ Evacuation Zones Map.

Town Host Community Reception Center Primary Evacuation Route Instructions
East Lyme New Haven Southern Connecticut State University
Moore Field House
125 Wintergreen Ave.
New Haven, CT 06515

East Lyme, Lyme, and Old Lyme to New Haven

I-95 South lo Exit 44 to RTE 10N (Ella Grasso Blvd.).
Continue ton Ella Grasso Blvd. to left on Crescent.
Right off Fitch.
Left on Wintergreen to Connecticut State U Moore Field House.

Groton City & Groton Town Norwich Norwich Technical High School
7 Mahan Drive
Norwich, CT 06360

Groton City and Groton Town to Norwich

RTE 12 N to RTE 2A West to I-395 N to Exit 13A.
Take Route 2E to 169 North (Harland Rd.).
Right on Ox Hill Rd.
Turn right before Mahan Dr. into Norwich Technical HS.

OR

RTE 349 N (CB Sharp Hwy) to I-95 to RTE 117N to RTE 2 W to RTE 169 N (Hartland Rd.).
Right on Ox Hill Rd.
Turn right before Mahan Dr. onto Norwich Technical HS.

OR

RTE 184 E to RTE 201 N to RTE 2 W to RTW 169 N (Hartland Rd.).
Right on Ox Hill Rd.
Turn right before Mahan Dr. onto Norwich Technical HS.

Ledyard* Mansfield/UCONN /Storrs UCONN Commuter Lot “C”
Storrs, CT 06269

Ledyard to Mansfield/UCONN/Storrs

RTE 12 N to RTE 2A.
West to I-395 N.
At exit 13B, take ramp right for CT-32- N.
Follow 32 N to RTE 44. Right onto RTE 44 E, right onto Discovery Dr. to Avalonia Way.
Right into commuter “C” Lot.

Lyme* & Old Lyme New Haven Southern Connecticut State University
Moore Field House
125 Wintergreen Ave.
New Haven, CT 06515

East Lyme, Lyme, & Old Lyme to New Haven

I-95 South lo Exit 44 to RTE 10N (Ella Grasso Blvd.)
Continue ton Ella Grasso Blvd. to left on Crescent.
Right off Fitch.
Left on Wintergreen to Connecticut State U Moore Field House.

Montville* West Hartford Conard High School
110 Beechwood Road
West Hampton, CT 06107

Montville to West Hartford

Southeast on CT-163,
Left to merge onto I-395 towards Norwich,
Exit 13B to CT-2 W/CT-32 N towards Hartford,
Exit 2W to merge onto I-84 W towards I-91 N,
Exit 41 to South Main St
At traffic light, turn right on South Main Street
Left on Beechwood Rd. to Conard HS.

New London Windham Windham High School 355 High Street Willimantic, CT 06226

New London to Windham

RTE 32 N to Frog Bridge RTE 66.
Right, over bridge, stay straight, on Jackson St. to left on Valley St.,
Turn right onto High St. up hill to Windham HS.

Waterford West Hartford Conard High School
110 Beechwood Road
West Hampton, CT 06107

Waterford to West Hartford

West on Boston Post Rd (US-I) to I-95 S.
Take exit 69 on the right to CT-9 N towards Essex/Hartford.
Take exit 40B (old exit 31) to 1-84 E.
Take exit 40 to CT-71.
Left on Berkshire Rd.
Right on Beechwood Rd. to Conard HS.

Fishers Island, NY Windham Windham High School
355 High Street
Willimantic, CT 06226

Fishers Island to Windham

To New London or Stonington Harbor.
State provided bus transportation to Windham HS.


*Only a portion of Ledyard, Lyme and Montville are located in the 10-mile emergency planning zone. The areas within the EPZ are:

  1. Ledyard EPZ - All areas south of Hurlbutt Road, Whalehead Road and Sandy Hollow Road to Route 117.
  2. Lyme EPZ - All areas east of Route 156 and south of Beaver Brook Road.
  3. Montville EPZ - All areas south of Grassy Hill Road, Chesterfield Road, Route 163 and Depot Road to Waterford and East Lyme town lines including those areas between Glendale Road and Chapel Hill Road in Oakdale Heights.

Take Potassium Iodide (KI) If Recommended

Not every radiological emergency will result in the release of radioactive iodine. Potassium iodide, also known as KI, is a form of iodine. KI is used as a supplemental protective action. KI helps protect your thyroid gland if there is a chance you might be exposed to a harmful amount of radioactive iodine.

If KI is recommended in an emergency, it is important to follow exact dosing, which can be found on Connecticut’s Potassium Iodide Fact Sheet. Especially in young children and infants, giving too much KI can cause more serious side effects and health issues.

Those living and/or working within the 10-mile area of Millstone Power Station can obtain KI (EXCEPT during emergencies) at the locations and times listed below (no appointment necessary).

During an emergency, KI will be available at your designated evacuation reception center.

Visit Connecticut's Potassium Iodide (KI) Program webpage for more information on KI.

Important KI Reminders:

  • Do NOT take KI unless directed to do so by public health officials.
  • If directed to take KI, follow exact dosage for your age group.
  • Do NOT give KI to pets.
Town/City Location Hours of Operation Contact Number
East Lyme Town Hall
108 Pennsylvania Ave.
Monday – Friday, 8:00 a.m. – 4:00 p.m. (860) 739-6931 Ext. 1135
Groton City Groton Municipal Building
City Clerk’s Office
295 Meridian St.
Monday – Friday, 9:00 a.m. – 4:00 p.m. (860) 446-4102
Groton Town Town Hall
Town Clerk’s Office
45 Fort Hill Rd.

Groton Town PD
68 Groton Long Point Rd.
Monday – Friday 8:30 a.m. – 4:30 p.m

Police Department is open 24 hours a day
Town Clerk: (860)-441-6640

Dispatch Center: (860) 445-2000
Ledyard Ledyard Regional VNA
741 Colonel Ledyard Hwy.

Ledyard Police Dept.
737 Colonel Ledyard Hwy.
Monday – Friday 8:00 a.m. – 4:00 p.m.

Police Department is open 24 hours a day
(860) 464-8464

(860) 464-6400
Lyme Town Hall Town Clerk’s Office
480 Hamburg Road (Route 156)
Monday – Friday 9:00 a.m. – 4:00 p.m. (860) 434-7733
Montville Town Hall Office of the Fire Marshal and Emergency Management
310 Norwich - New London Tpke.
Monday – Friday 9:00 a.m. – 4:30 p.m. (860) 848-1417
New London Fire Headquarters
289 Bank St.

North Station Fire Dept.
240 Broad St.

South Station Fire Dept.
25 Lower Blvd.
Daily 7:30 a.m. – 7:30 p.m. at all locations (860) 440-6671 or (860) 447-5291

(860) 437-6340

(860) 437-6341
Old Lyme Town Hall
52 Lyme Street
Monday – Friday, 9:00 a.m. – 4:00 p.m. (860) 434-1605 Ext. 212
Waterford Waterford Police Dept.
41 Avery Lane

Town Hall
15 Rope Ferry Rd
Sunday – Monday 8:00 a.m. - 8:00 p.m.

(860) 442-9451

(860) 442-0553
(860) 442-9585
Fishers Island In case of emergency, KI will be available at the Fishers Island Fire Department - 250 Athol Crescent.

Protect Your Livestock and Agriculture

Protective recommendations for livestock and agricultural products will be issued by appropriate state and local officials. Other preparedness actions to protect livestock and agriculture include:

  • If possible, shelter farm animals and provide stored (covered) feed and protected water (e.g., protective self-feeders and automatic waterers).
  • Store feed in buildings or cover with plastic or canvas if outdoors.
  • Cover open wells and water tanks.
  • Have a relocation plan in the event that you cannot return to your home.

If you have livestock or agricultural products, download the Radiological Emergency Information for Connecticut’s Agricultural Community brochure , or call 1-800-397-8876 to request a copy. You may also visit the Connecticut Animal Response Team website that contains a wealth of resources for preparing and responding to animal needs in disasters.

Download the U.S Department of Agriculture’s (USDA) Livestock Preparedness Fact Sheet  for additional guidance on protecting livestock in emergencies.

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More Information

Local and State Contact Information

Visit or contact your local/state emergency management or public safety agency for additional emergency preparedness and response information specific to your area.

Connecticut Department of Emergency Services and Public Protection (CT DESPP)
Office: 860-685-8000

Download the CTPrepares Mobile App the official mobile app of CT DESPP. You can build your own emergency plan(s), emergency kit, stay connected to friends and family, and receive emergency information and alerts. The app contains other functionality to keep you prepared and informed, including the ability to function without the need of a data connection. Download free today at Apple App Store or Google Play.

Connecticut 2-1-1
Call CT 2-1-1 for information on all kinds of topics, including school closures, reception center, emergency preparedness and response topics. If you are outside of Connecticut or have a problem using the 2-1-1-number, dial 800-203-1234.
Dominion Energy
Call Dominion Energy toll-free at 866-366-4357 for more information about nuclear power station operations and preparedness, or to request a hard copy of this information mailed to you at no cost.
Download Millstone Nuclear Safety PDF

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Test Your Knowledge

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In an emergency at the nuclear power station, emergency officials will alert the public via sirens. Tune into your local radio or TV news broadcast station(s) for more information.

Social media is not the first action or place to be notified of an emergency at the nuclear power station. Unofficial social media feeds can spread false or misleading information.

Correct!

Incorrect. Please try again.

Hearing a siren does NOT mean you should evacuate. It means tune into your local radio or television station(s) and listen for information and instructions on what to do, such as shelter-in-place or to evacuate your home.

In an emergency, when you hear a siren, next action is to tune into local radio and/or TV station(s) for information and instructions.

Do not ignore the sirens. The reason for sirens is to get your attention and tune into your local radio or television station(s) for information and instructions.

Correct!

Incorrect. Please try again.

If you need help with developing a Family Emergency Plan and/or Emergency Kit, go to CT DEMHS website and/or the CTPrepares Mobile App for helpful emergency preparedness resources to get you started.

The U.S. Department of Defense will not provide you emergency preparedness resources to help you develop a Family Emergency Plan and/or an Emergency Kit.

The U.S. Department of Treasury will not provide you emergency preparedness resources to help you develop a Family Emergency Plan and/or an Emergency Kit.

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These zones have no connection to public school districts in the State of Connecticut.

These zones have no connection to voting districts in the State of Connecticut.

Emergency Planning Zones are established to provide instruction on what action(s) to take in an emergency.

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In an emergency at Millstone Power Station, people may call CT 2-1-1 for information and resources related to the emergency.

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Nuclear power stations have 3 fission product barriers (protective barriers) to prevent the release of radioactive fission products from the reactor core to the environment.

  1. 1. First barrier is the fuel cladding.
  2. 2. Second barrier is the Reactor Coolant System.
  3. 3. Third barrier is the Containment Building.

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