Many Lambton County residents are served by a municipal drinking water system sourced from Lake Huron. For one reason or another, there may be times when the Medical Officer of Health needs to advise the public to either boil or stop using piped water until a problem has been resolved.
Depending on the nature of the problem, the Medical Officer of Health may issue one of the following types of advisories:
Boil water advisories
Boil water advisories advise home users that they should bring their tap water to a rolling boil for at least 1 minute before they:
- drink the water
- use the water for other purposes, such as to:
- cook
- feed pets
- brush their teeth
- make soups or ice cubes
- wash fruits and vegetables
- make infant formula or other drinks
During a boil water advisory, do not use tap water to bathe those who need help, such as:
- infants
- toddlers
- the elderly
Give them sponge baths instead so they avoid swallowing the water.
Boil water advisories are issued when:
- there are problems with the water treatment system, such as chlorine levels that are too low
- the water has disease-causing:
- viruses
- bacteria
- parasites
Do not consume advisories
Do not consume advisories are issued when the water system has contaminants, like lead, that can't be removed from the water by boiling.
Do not consume advisories are also called do not drink advisories. These advisories tell the public that they should not use their tap water to:
- cook
- drink
- feed pets
- brush their teeth
- make soups or ice cubes
- wash fruits and vegetables
- make infant formula or other drinks
During a do not consume advisory, do not use tap water to bathe those who need help, such as:
- infants
- toddlers
- the elderly
Give them sponge baths instead so they avoid swallowing the water by accident.
The water can still be used to shower and bathe:
- adults
- older children
Do not use advisories
Do not use advisories warn the public that they should not use their tap water for any reason. A do not use advisory is issued when:
- using the water poses a health risk
- the water system has pollutants that can't be removed through boiling
- being exposed to the water through bathing could, perhaps due to a chemical spill, irritate the:
- skin
- eyes
- nose
Preparedness
Take steps now to be prepared for a possible interruption or contamination of the drinking water supply. Create a 72 hour stockpile of drinking water, allocating 4 litres of water per person per day (provide for pets too). This amount should provide a sufficient quantity of water for drinking, cooking, washing, brushing teeth, etc.
Notifications
Local residents will be informed of a water advisory through the media. Those residing in the affected area will be notified though Sarnia-Lambton Alerts and possibly via door-to-door notification.
After the cause of the advisory has been addressed and the drinking water has been made safe, only the Medical Officer of Health can lift the advisory. Residents will normally be notified when the advisory has been lifted through the same means used to issue the advisory. As with any emergency, listen to your radio for news and updates.
If your drinking water has an unusual taste, colour or odour and you suspect that it has become contaminated, contact:
Lambton Public Health: 519-383-8331 / 1-800-667-1839