A water notice is not a generic warning to “filter or boil.” The exact label, contaminant, affected area, allowed uses, treatment method, start time, and end condition matter. A boil-water advisory, do-not-drink advisory, and do-not-use advisory can require fundamentally different household actions.
Use this page to route and record the official instruction. It does not independently decide that water is safe. If the notice is missing, contradictory, or unclear, stop the questionable use and contact the water utility or public-health authority.
Private in-browser worksheet
Water advisory action log
Transcribe the authority's exact notice and assign household actions. This tool does not interpret contamination, decide whether water is safe, or save what you enter.
The current issuing authority controls. If the notice is unclear or unavailable, stop the questionable use and contact the water utility or public-health authority. Fuel, toxic chemicals, radioactive material, or unknown chemical contamination is not made safe by boiling, ordinary disinfection, or a typical household filter.
First decision: is there an identifiable authority notice?
Find the original notice from the water utility, local health department, emergency management agency, or other named authority. A cropped social post, forwarded message, neighbor’s summary, or search snippet can omit the affected neighborhood, date, update, or exception.
Record:
- issuing authority and official alert channel;
- issue or update date and time;
- affected addresses, pressure zone, system, or geographic area;
- exact advisory wording;
- uses the notice allows and prohibits;
- treatment instructions, if any;
- instructions for infants, medical uses, pets, schools, food businesses, or care facilities;
- next update channel and the condition for lifting the notice.
If you cannot confirm whether the home is affected, treat the status as unresolved. Use stored or another authority-identified safe supply for affected ingestion and hygiene uses while contacting the system. Do not infer safety from clear appearance, normal pressure, taste, smell, or a household filter.
Second decision: copy the advisory category exactly
Boil-water advisory
This category generally addresses possible disease-causing organisms. Follow the local notice for affected uses and treatment time. CDC general emergency guidance says that, when safe bottled water is unavailable, clear water can be brought to a rolling boil for one minute, or three minutes above 6,500 feet, then cooled and kept in clean sanitized containers with tight covers.
That general method does not override a local notice. Boiling kills germs; it does not remove fuel, toxic chemicals, or radioactive material. If the authority gives different instructions or identifies chemical contamination, use its alternative-water direction.
Do-not-drink advisory
Do not turn this into a boil-water notice. Boiling can concentrate some contaminants and does not make fuel or toxic chemical contamination safe. Use the alternative source identified by authorities for drinking and every other use listed in the notice. Check the exact rules for cooking, ice, oral hygiene, dishwashing, infant feeding, pets, and medical use.
Do-not-use advisory
Stop every use listed by the authority. A do-not-use notice may address contact, inhalation, plumbing, or other hazards that bottled drinking water alone does not solve. Do not bathe, wash, flush, clean, or run appliances unless the notice explicitly permits that use. Keep people and animals away from affected fixtures as directed.
Other or unclear wording
Some systems use different terms or issue a pressure-loss, conservation, “unsafe water,” or localized notice. Copy the wording rather than forcing it into one of the three common labels. Contact the issuing authority and ask which uses are allowed, which are prohibited, and what ends the restriction.
Third decision: stop the affected uses
CDC says that water known or suspected to be unsafe should not be used for drinking, washing dishes, brushing teeth, washing or preparing food, washing hands, making ice, or preparing baby formula unless it has been made safe under the applicable guidance. The local notice may add or modify uses based on the contaminant.
Build visible controls around the actual home:
- Tell every household member, caregiver, guest, and animal caregiver.
- Place a plain notice at affected faucets, refrigerator dispensers, ice makers, and other relevant fixtures.
- Discard or isolate ice and prepared items only according to the current authority and food-safety instructions.
- Prevent children or confused household members from using an affected fixture without creating an egress or plumbing hazard.
- Assign one person to monitor official updates and one backup.
Do not make an irreversible plumbing change based on a generic checklist. Some appliances, treatment units, medical equipment, water heaters, boilers, irrigation systems, wells, and building systems have manufacturer or professional procedures.
Fourth decision: open the safe-water plan
Use the reserve documented through the Emergency Water Storage hub and household calculator. Record the container opened, date, volume, intended uses, and remaining amount. Keep the cleanest known supply protected for ingestion, food, oral care, medications, infant needs, and other uses named in the notice.
Do not quietly substitute an unverified source. Water from a home heating boiler or radiator is not drinking water. Pool, rain-barrel, stream, lake, roof-tank, water-heater, well, and cistern water each have different contamination and equipment concerns. A source that may be allowed for toilet flushing is not automatically allowed for handwashing, food, or drinking.
After a flood or suspected well/cistern contamination, move to Safe Drinking Water After a Flood. Floodwater can carry sewage, fuel, pesticides, and other hazards that a household treatment cannot reliably identify or remove.
Fifth decision: protect dependent workflows
Food, dishes, and ice
Record which prepared foods, beverages, ice, refrigerator lines, and dishwashing steps were exposed after the notice’s effective time. Use current public-health and food-safety guidance; do not taste food or water to test it. The emergency food hub can supply meals that use little safe water and no unsafe cooking workaround.
Medication and medical equipment
Do not improvise water for a medication, feeding system, humidification device, respiratory device, wound care, or other clinical use. Follow the clinician, pharmacist, equipment manufacturer, supplier, and authority instructions in the medical continuity plan. Ordinary “drinking water” wording may not answer a sterile-water or device-specific question.
Infants and children
Follow current public-health and clinician guidance for infant feeding and cleaning feeding items. Do not use the advisory as a reason to invent dilution, substitute a formula, or change a feeding plan. Keep the caregiver’s exact instructions with the water record.
Pets and other animals
Use the pet emergency preparedness plan and veterinarian guidance. Do not assume an animal can drink suspect water because it is not intended for a person. Livestock, aquariums, and specialized species require their own qualified plan.
Hygiene and toilets
The sanitation and hygiene hub separates hand hygiene, waste, toilets, and sewage stop rules. Whether tap water can be used for bathing, laundry, toilet flushing, or cleaning depends on the notice. Never mix cleaning chemicals, and never use a chemical treatment as a substitute for the exact drinking-water instruction.
Sixth decision: select treatment only when instructed
If the authority says to boil water, follow its method. If it permits another treatment, follow the exact current instructions and product label. The CDC notes that chemical disinfectants do not work as well as boiling against some parasites, that portable filters do not remove all germs, and that UV treatment depends on clear water and correct device use.
Use Emergency Water Filtration, Purification, and Treatment Explained before relying on equipment claims. A refrigerator filter, carbon pitcher, camping filter, UV unit, reverse-osmosis system, or chemical tablet is not a universal solution. Certification applies to specified claims and operating conditions, not every emergency contaminant.
Never attempt to treat fuel, toxic chemicals, radioactive material, or unknown chemical contamination with boiling, bleach, tablets, an ordinary filter, or UV. Use a different source and contact the health department as CDC directs.
Seventh decision: keep an action and update log
Every household change should have an owner and time:
| Log item | Minimum record |
|---|---|
| Notice | Authority, category, affected area, issue time, exact wording |
| Safe supply | Source, container, amount opened, intended uses |
| Household notification | People reached, caregiver handoff, animal-care handoff |
| Food and ice | Items isolated or handled under current instructions |
| Medical and infant needs | Qualified instruction obtained, person responsible |
| Treatment | Exact authority method, operator, batch, time, container |
| Next check | Official channel, time, backup person |
| Notice lifted | Authority, date/time, flushing or equipment instructions completed |
The in-browser log above is not saved. Print it or transcribe it into the household record. Avoid putting unnecessary medical or personal data on a sheet visible to visitors.
When the notice is lifted
Do not return every system to use based only on silence or a neighbor’s message. Confirm that the issuing authority lifted the notice for the home’s service area. Follow its flushing, ice-maker, filter, appliance, treatment-system, well, cistern, and food-service instructions.
Replace or service cartridges only according to the authority and manufacturer; changing a filter without flushing the system may not complete the process. Clean and sanitize emergency containers before refilling when required. Update the log with what was completed and any unresolved equipment or health question.
Sources reviewed
ReadyLience reviewed CDC emergency water, boil-water advisory, and EPA emergency disinfection guidance on July 15, 2026. The issuing authority’s current notice and the relevant clinician, veterinarian, equipment manufacturer, utility, and qualified professional always control. This critical-risk draft is awaiting specialist review before publication.