At this time of year, the Water department occasionally receives telephone calls from concerned consumers stating that the drinking water is grey in colour and cloudy. During this time of year, fluctuations in the outside temperature often affect the colour of our drinking water. This is typically observed during colder weather periods when the cold water leaves the customers' plumbing through the tap and enters the warm air or glass. Air, dissolved in the cold water, forms tiny air bubbles in the water that appear as a grey cloudy condition. Letting the water stand for a few minutes will result in the air bubbles rising to the surface and leaving the water clear. The water is safe to drink as air bubbles are the source of this condition.