Why Drinking Water Safety Matters During Hurricane Season
Hurricane season can bring more than strong winds and heavy rain. It can also disrupt drinking water systems.
Storm surge, flooding, power outages, broken water mains, low water pressure, and damaged treatment plants can all affect tap water safety. In some areas, hurricanes may also contaminate private wells with floodwater, sewage, fuel, chemicals, or agricultural runoff.
Even if tap water looks clear, it may not be safe after a major storm.
That is why every household in hurricane-prone areas should have a drinking water safety plan before the storm arrives.
Before the Storm: Store Safe Drinking Water
The best time to prepare water is before hurricane warnings begin.
A practical emergency rule is to store at least one gallon of water per person per day for at least three days. This water is for drinking, cooking, brushing teeth, basic hygiene, and pets.
If possible, store more than the minimum. Families in hot climates, households with infants, older adults, pregnant people, people with medical conditions, or pets may need extra water.
Use clean, food-grade containers with tight lids. Store water in a cool, dark place away from sunlight, gasoline, pesticides, cleaning products, and other chemicals.
You can store:
- Sealed bottled water
- Water in clean food-grade containers
- Emergency water containers designed for disaster storage
Do not use containers that previously held milk, juice, chemicals, or non-food materials.
What to Do When a Hurricane Is Approaching
Before the storm arrives, take a few simple steps:
- Fill clean containers with drinking water
- Fill extra containers for washing and flushing
- Freeze some bottles of water to help keep food cold
- Keep bottled water in an accessible place
- Charge phones so you can receive local water alerts
- Know your water utility’s emergency notification system
- Store baby formula supplies and pet water separately
- Keep replacement water filter cartridges available
If your area is under an evacuation order, follow local instructions. Do not risk staying just to protect household supplies.
During the Storm: Do Not Assume Tap Water Is Safe
During a hurricane, water service may be affected suddenly.
You may experience:
- No water
- Low water pressure
- Cloudy water
- Brown or muddy water
- Unusual odor
- Strong chlorine smell
- Boil water advisory
- Do not drink advisory
- Do not use notice
If local officials issue a water advisory, follow it immediately.
Do not wait until the water looks bad. Some unsafe water may look, smell, and taste normal.
Boil Water Advisory: What It Means
A boil water advisory usually means there may be a risk of bacteria, viruses, parasites, or other harmful microorganisms in the water.
This can happen after low pressure, flooding, water main breaks, or treatment system problems.
During a boil water advisory, use bottled water or properly boiled water for:
- Drinking
- Cooking
- Making coffee or tea
- Brushing teeth
- Washing fruits and vegetables
- Making ice
- Preparing baby formula
- Giving water to pets
- Taking medication
- Cleaning food-contact surfaces
To boil water safely, bring clear water to a full rolling boil for 1 minute. At high elevations, boil longer according to official guidance. Let the water cool and store it in a clean, covered container.
If water is cloudy, let it settle first. Then pour the clearer water through a clean cloth, paper towel, or coffee filter before boiling.
Do Not Drink Advisory: What It Means
A do not drink advisory is different from a boil water advisory.
It may mean the water could contain chemicals, fuel, toxins, industrial pollutants, or other substances that boiling will not remove.
During a do not drink advisory:
- Do not drink tap water
- Do not cook with tap water
- Do not make coffee or tea with tap water
- Do not brush teeth with tap water
- Do not prepare baby formula with tap water
- Do not give tap water to pets
Use bottled water or another approved safe water source.
Do not assume boiling, filtering, freezing, or letting water sit will make the water safe.
Do Not Use Notice: The Most Serious Warning
A do not use notice means tap water may be unsafe for any household use.
This can include drinking, cooking, bathing, washing hands, cleaning, or laundry, depending on the situation.
If your area receives a do not use notice, do not try to treat the water yourself. Follow local emergency instructions and use bottled water or another approved safe source.
Can You Use a Water Filter During Hurricane Season?
A home water filter can be useful for everyday tap water, but it should not replace emergency instructions during a hurricane.
Most home water filters are designed for normal water service conditions. They may help improve taste, reduce chlorine odor, reduce sediment, or address specific contaminants depending on the filter design.
But hurricane-related water problems can be unpredictable. Water may contain sewage, bacteria, viruses, parasites, fuel, chemicals, or flood-related contaminants.
During an official advisory, follow the advisory first.
If officials say to boil water, boil it even if you have a filter.
If officials say do not drink the water, do not drink it even if it has been filtered or boiled.
Where LCF Fits In
LCF water filtration systems are designed for everyday tap water improvement.
Depending on the model, LCF systems may help improve taste, reduce chlorine taste and odor, reduce sediment, and make daily drinking water more enjoyable under normal conditions.
However, during a hurricane-related water emergency, LCF filters should not be used as a substitute for bottled water, boiling, disinfection, testing, or local health guidance.
A safe approach is:
- Before the storm: prepare emergency bottled or stored water
- During an advisory: use bottled or properly boiled water
- Do not rely on filtered tap water during official emergency warnings
- After the advisory is lifted: flush plumbing and filter systems
- Replace filter cartridges if they may have been exposed to unsafe water
- Return to normal LCF filtration after water service is confirmed safe
This keeps emergency safety separate from everyday filtration.
What If You Use a Private Well?
Private wells are especially vulnerable during hurricanes and flooding.
Floodwater can enter a well through a damaged cap, cracked casing, poor drainage, or nearby contamination sources. This can introduce bacteria, sewage, sediment, pesticides, fuel, or other pollutants.
If your well was flooded or may have been contaminated:
- Stop drinking the well water.
- Use bottled water or another safe water source.
- Do not turn on the pump if electrical parts are wet.
- Have the well inspected if damaged.
- Disinfect the well according to local guidance.
- Flush the system properly.
- Test the water before drinking it again.
Do not rely on taste, smell, or appearance to judge well water safety after a hurricane.
What About Refrigerator Water, Ice Makers, and Appliances?
During a boil water advisory or other water emergency, be careful with appliances connected to your water line.
Avoid using:
- Refrigerator water dispensers
- Refrigerator ice makers
- Built-in coffee makers
- Ice machines
- Water coolers connected to plumbing
Throw away ice made before or during the advisory. After the advisory is lifted, flush refrigerator water lines and discard the first batches of ice according to local guidance and appliance instructions.
If a refrigerator filter was exposed to unsafe water, replacing it may be the safest choice.
How to Make Water Safer in an Emergency
If you do not have bottled water and local officials say boiling is appropriate, boiling is usually the preferred emergency method for water that may contain germs.
If boiling is not possible, local authorities may provide instructions for emergency disinfection using unscented household bleach or other approved methods.
Important: water contaminated with fuel, toxic chemicals, or certain pollutants cannot be made safe by boiling or basic disinfection. In that situation, use bottled water or another approved safe source.
Always follow local emergency guidance.
After the Storm: When Can You Drink Tap Water Again?
Do not return to normal tap water use until local officials say the water is safe.
Once the advisory is lifted, your home system may still need flushing and cleanup.
You may need to:
- Run cold water faucets for several minutes
- Flush refrigerator water dispensers
- Discard old ice
- Restart and flush ice makers
- Clean and sanitize water containers
- Flush your water filter system
- Replace filter cartridges if recommended
- Check for unusual taste, odor, color, or cloudiness
If water still looks, smells, or tastes unusual after the advisory is lifted, contact your water utility before drinking it.
Hurricane Water Safety Checklist
Before hurricane season, prepare:
- At least 3 days of emergency water
- Extra water for infants, pets, and medical needs
- Clean food-grade water containers
- A pot or kettle for boiling water
- Hand sanitizer
- Disposable plates and utensils
- Paper towels
- Baby formula supplies if needed
- Pet water supplies
- Replacement filter cartridges
- Local emergency contact information
- Battery-powered or backup phone charging options
If you live in a hurricane-prone area, do not wait until store shelves are empty. Prepare early.
Conclusion
Hurricanes can quickly affect drinking water safety.
Flooding, power outages, broken pipes, low pressure, and damaged treatment systems can make tap water unsafe even when it looks clear.
Before the storm, store safe water. During the storm, follow local alerts. If officials issue a boil water advisory, use bottled or properly boiled water. If officials issue a do not drink or do not use notice, do not assume boiling or filtering is enough.
LCF water filtration systems can support better everyday tap water under normal conditions, but emergency water safety guidance always comes first during hurricane season.
Prepare early, follow local instructions, and return to normal filtered water use only after your water is confirmed safe.