A map has been posted on the town's website showing the affected areas. The warning affects more than 1,200 homes in two zones.
Residents living in the area are being asked to make sure they boil their water for at least two minutes before drinking it.
The Town of Gibsons says it is currently doing more tests to determine whether E.Coli bacteria has made its way into drinking water.
Previous boil water advisories
Under the advisory, owners of public premises served by water systems where the advisory is in effect must:- notify the public that the water is not potable water by posting a sign at every sink or drinking water fountain accessible to the public
- where possible verbally advise any person who may use the domestic water system for a domestic purpose that the water is not potable water
According to the town's website, boil water advisories are issued in situations where the public health threat posed by the water supply system is significant, but can be treated effectively by boiling the water.
The town says it does not expect to be able to provide another update before Monday, June 9.
On mobile? Click here to see map of Gibson's B.C.
On mobile? Click here to read boil water advisory