Contamination of drinking water from a distribution network | Gouvernement du Québec

Main contaminants of drinking water

The main contaminants of drinking water

Escherichia coli (E. coli), fecal coliforms or enterococci

Escherichia coli (E. coli), fecal coliforms or enterococci - boil water advisory

Trihalomethanes

Knowing the health risks of exposure to trihalomethanes (THMs)

Lead

Knowing the health risks of lead exposure

Last update: December 20, 2018