My water has an earthy, musty odour. Is it safe to drink?
Water with an earthy, musty odour is safe to drink. The musty earthy odour is typically caused by a group of naturally occurring organic chemicals formed from dying water vegetation in the source water. Windsor experienced such a problem in the early 1990’s but this has been corrected with the introduction of Ozone into our treatment process.
The presence of naturally occurring algae, and higher water temperatures in Lake Ontario, can cause a noticeable earthy, musty taste and odour. Testing at the Region of Durham s environmental lab has confirmed that the bacteriological quality of the water continues to be excellent during these occurrences. Studies are being conducted presently by the Region of Durham as well as the Ministry of the Environment on ways to reduce or eliminate this aesthetic problem.