Denman Island Water System on Boil Water Notice - Effective November 25, 2021

Updated: November 25, 2021

The Graham Lake Improvement District which operates the Denman Island Water System have issued a boil water notice effective November 25, 2021 due to high turbidity levels. Users are advised to bring all water to a rolling boil for at least one minute and let it cool before using it or use bottled water. Until further notice, boiled or bottled water should be used for drinking, making ice, washing dishes, brushing teeth and food preparation.

For more information, please visit Graham Lake Improvement District's website at 


Reporting Water Quality Issues

If you have a water quality issue to report, please call 250-334-6056 during weekdays from 8:30 am to 4:30 pm and our after hours water emergency line at 1-877-999-2285 so that we can track your exact location and the nature of the complaint. It is important that we are able to accurately track the source of any drinking water complaints and we ask the public to use the appropriate mechanism to make their reports.​