— HURRICANE ISAIAS • FLORIDA DRINKING-WATER GUIDE

Hurricane Isaias and Florida tap water: when to boil, when to test and what not to assume

By Jose Linan · Published October 9, 2026 · Updated October 9, 2026

Hurricane Isaias is approaching Florida's northern Gulf Coast. A hurricane can disrupt water systems, but the storm's presence alone does not mean every affected customer's tap water is unsafe.

What is confirmed now?

ECUA issued a systemwide precautionary boil-water notice effective immediately Friday night after Hurricane Isaias. ECUA water customers should use bottled water or boil tap water for at least one minute before drinking, cooking, making ice, brushing teeth, washing dishes or preparing food until the utility lifts the notice.

Pensacola Beach water and sewer service also remains shut down. The ECUA notice should not be extended to customers of unrelated utilities elsewhere in Escambia County or Florida.

When does a boil-water notice become necessary?

Florida Department of Health guidance focuses on what happens to the water system—not simply whether a hurricane passed nearby. A notice may be issued when pressure falls to zero, when low pressure creates an infiltration risk, when a main break or interruption could affect bacteriological quality, or when floodwater inundates a supply well.

A precautionary notice does not necessarily mean contamination was found. It means the responsible authority believes conditions justify protective action while the system is restored and tested.

If a notice is issued, what water should be boiled?

Follow the exact notice. Florida health guidance says bringing water to a rolling boil for one minute is sufficient for microbiological precautions. Water used for drinking, cooking, making ice, brushing teeth and preparing food is usually included.

What if the water is off but no boil notice exists?

An outage and a boil-water notice are different. During an outage, conserve stored drinking water and avoid using plumbing fixtures if sewer service is also unavailable. When service returns, check the utility's current notice before drinking the water. Do not create your own all-clear based only on clear appearance, normal odor or restored pressure.

What should private-well owners do after flooding?

Private wells are not automatically included in a public utility's boil-water notice. Florida health officials warn that a flooded well may be contaminated and can require disinfection and testing after floodwater recedes.

If floodwater reached the well or you suspect contamination, stop using untreated well water for drinking and cooking, use an official safe-water alternative, and contact the local county health department for the correct disinfection and sampling steps. A normal-looking sample or a basic in-home hardness, TDS or pH test cannot establish microbiological safety.

Five checks after the storm

1. Identify the actual provider. Use the current water bill or official provider lookup.
2. Check the exact service area. City and county boundaries do not always match utility boundaries.
3. Read the newest timestamp. An issuance, extension and rescission are different instructions.
4. Wait for the issuer's all-clear. Do not stop boiling because a neighbor says the notice ended.
5. Use the right test. Health questions require the appropriate certified laboratory method; routine home screening does not prove safety.

Check current Florida drinking-water alerts →

Read the confirmed Pensacola Beach shutdown report →