Statement from the Township of North Dundas regarding reports of coloured water in Chesterville

August 24, 2021

The Township of North Dundas and the Ontario Clean Water Agency (OCWA) have been working to reduce the occurrence of coloured water affecting some residents within the township.

An action plan was put in place with the goal of reducing the incidences of coloured water in Chesterville’s drinking water system. This plan includes performing maintenance to one of the supply wells, cleaning the transmission pipeline from the well site to the reservoir and additional cleaning of the reservoir.

Chesterville’s water supply is fed by groundwater wells, which typically contain a high concentration of dissolved minerals. These minerals, such as calcium, magnesium and iron, form deposits which can be disturbed when high volumes of water move through the system. These events, including watermain breaks, fire suppression activities and hydrant flushing, can result in brown, yellow or red coloured water being observed in the system.   

Although this water is not aesthetically pleasing, it is not dangerous to drink. The water in Chesterville is tested regularly and meets the provincial drinking water regulations set out by the Ministry of the Environment, Conservation and Parks. 

Due to the nature of Chesterville’s water system, coloured water occurrences are likely to continue, although the township and OCWA are working to reduce the apparent increase in frequency. 

Anyone with questions or concerns is encouraged to contact the township or OCWA directly.

Township of North Dundas: 613-774-2105
OCWA: 613-448-3098