Drinking Water Advisory – Do Not Use the Water

A “Do Not Use the Water” advisory is issued when authorities suspect or have confirmed the presence of chemical or radiological contaminants in the drinking water supply. Drinking water contaminated with these contaminants can pose health risks if ingested. Boiling or disinfecting the water will not remove the contaminants.

When a “Do Not Use the Water” Advisory has been Issued

Do not use the water from the drinking water supply under any circumstances and avoid skin contact.

An alternate source of potable water* must be used for all water needs.
See below for more information on alternative potable water sources and storage.

The Water CANNOT Be Used For:

Drinking
Brushing teeth or dentures
Handwashing
- See below for more information.
Washing dishes, cutting boards, countertops, etc.
Food preparation, including washing fruits and vegetables
Preparing baby or infant formula
- See below for more information.
Making ice cubes, juice, or other mixes
Coffee makers
Giving water to pets
Household cleaning
Doing the laundry
Taking a shower or bath
Swimming
Kitchen and other household water filters or devices
- Filters which have come into contact with water affected by the advisory should be replaced.
Children’s water play, such as wading pools and water tables

Washing Hands During a “Do Not Use the Water” Advisory

Wash hands with soap and potable water from an alternative source (see below for more information).
If potable water from an alternative water source is not available:
- If hands are visibly soiled, a pre-moistened towelette (such as baby wipes) can be used to remove the dirt before using alcohol-based hand sanitizer (containing 70-90% alcohol).
- If hands are not visibly soiled, then alcohol-based hand sanitizer is sufficient.

Infant Formula Preparation during a Drinking Water Advisory

Buy bottled water and sterilize it by bringing the water to a rolling boil for two (2) minutes.
Do not use kettles that shut off before the water has boiled for two (2) minutes.
For more information, please visit our Formula Feeding Videos and Resources.
Contact the health unit at 705-267-1181 (or 1-800-461-1818) ext. 3650 for more details about how to safely prepare formula.

*Alternative Potable Water Sources

Bottled water can be purchased from local suppliers, such as grocery stores, convenience stores, and department stores.
Always follow the directions from the municipality or drinking water supply operator.

Do not use snow as a water source.

Steps to Disinfect a Container for Storing Potable Water

Clean a food-grade container and its lid with hot soapy water.
Rinse the container and lid with clean water from another source not affected by the advisory.
Disinfect your container by mixing 50 mL (1.76 fl oz) of liquid, non-scented household bleach with 5 L (1.1 gal) of water from another source not affected by the advisory.
Ensuring the lid is securely on, shake the container for at least 1 minute.
Use the same solution to disinfect the cap, lid, and mouth of the container.
Empty the container and let air dry.
Replace the lid.
Protect the container from being exposed to the water affected by the advisory.
Avoid touching the mouth, cap, or lid of the container.
Keep the container in a clean area, like a shelf or counter, away from surfaces (such as floors) where they may become dirty or soiled.
Replace the lid on container after each use.
Clean and disinfect the container and lid as described above before re-filling the container with drinking water from another potable source.

Lifting a “Do Not Use the Water” Advisory

The “Do Not Use the Water” advisory will continue until the issue has been resolved and two (2) consecutive sets of samples taken 24 to 48 hours apart from all parts of the water system show that the Ontario Drinking Water Standards have been met. Notice will be provided once an advisory is lifted.

Actions to Take When a “Do Not Use the Water” Advisory is Lifted

Run all cold water faucets for five (5) minutes before using the water.
To get rid of possible sediment, screens (also known as aerators) should be removed, rinsed, and replaced. Ensure hands are washed before handling the screens.
It is possible that a slight taste or smell of chlorine will be detected during the first use. The municipality or drinking water system operator may have been using a higher level of chlorination.
If there are any concerns, please contact the local municipal office or the operator of the drinking water system.

For more information on “Do Not Use the Water” advisories, contact the duty inspector at 705-267-1181 or toll free at 1-800-461-1818.

Drinking Water Advisory – Do Not Use the Water