Source: Access to information request, Health Canada. Data shows advisories in place on October 31, 2011. "Trigger" data shows original reason for advisory, but while the advisory remains, the reason may have changed.
Advisory has been in place for:
.png)
Less than 2 years .png)
2-4 years .png)
4-6 years .png)
6-8 years .png)
8-10 years .png)
More than 10 years
BWA = Boil water advisory BWO = Boil water order DNC = Do not consume
For an explanation of the meanings of these terms, see Health Canada.