Water is essential, but sometimes, due to contamination, we must take precautions with our tap water. In the U.S., different types of water advisories are used to communicate these risks.
Types of Water Advisories
1. Boil Water Notice
What It Means: Issued when there’s a potential for harmful pathogens like E. coli in your water, often due to reduced water pressure or system failure.
How to Respond:
- Boil Water: Bring water to a full rolling boil for at least 60 seconds, then let it cool. Use this for drinking, cooking, and brushing teeth. For infants, the elderly, or those with weakened immune systems, avoid bathing in unboiled water.
- Use Bottled Water: If boiling isn’t feasible, use bottled water.
- Disinfect Household Items: Disinfect toothbrushes, and wash dishes in water with bleach (1 tsp per gallon) for at least one minute.
- Ice and Appliances: Discard any ice in the freezer, turn off automatic ice makers, and ensure water-using appliances like refrigerators are disconnected from the water supply.
Water Treatment Systems: Not all home water treatment systems are effective against bacteria. Technologies like Ultraviolet (UV) and Ultrafiltration (UF) can be effective if certified for bacteria removal, but standard carbon, sediment, or even Reverse Osmosis (RO) systems are not.
Once the boil order is lifted, flush and disinfect household plumbing, appliances, and water treatment systems to ensure they’re free from contamination.
Replace any water filters and test your water to ensure that it is at the quality you desire.
2. Do Not Drink Water Notice
What It Means: Issued when water contains chemicals or toxins not removable by boiling.
How to Respond:
- Avoid Consumption: Do not use tap water for drinking, cooking, or any ingestion.
- Use Alternatives: Rely on bottled water or other safe water sources for all consumptive needs.
- Bathing: Generally safe for bathing, but avoid swallowing water or using it on open wounds.
3. Do Not Use Water Notice
What It Means: The most severe, used when water is unsafe for any use due to severe contamination.
How to Respond:
- Complete Avoidance: Do not use tap water for any purpose, including hygiene or cleaning.
- Seek Alternatives: Use bottled water for all needs, and wait for official clearance.
4. General Water Advisories
What It Means: These advisories might not prohibit use but suggest vigilance due to possible contamination.
How to Respond:
- Stay Informed: Monitor updates from local authorities.
- Follow Advice: Adhere to any specific recommendations given, like testing water or using bottled water for drinking.
General Response Guidelines
- Preparation: Keep an emergency supply of bottled water.
- Communication: Subscribe to alerts from your water provider.
- Special Care: Pay extra attention if you’re caring for vulnerable individuals.
Why These Advisories Matter
Water advisories are critical for public health, ensuring that we avoid waterborne diseases or exposure to harmful substances. They’re based on careful monitoring and are temporary measures for your long-term safety.
By understanding and following these advisories, you contribute to your health and community safety. Remember to always check with local water authorities for the most current advice and conditions. Stay safe, stay informed.