Montreal tests water on a regular basis to evaluate the quality of the water that the residents use to cook, clean, and drink. A routine test on Saturday in Anjou revealed the presence of E.coli in the water, according to La Presse. Other sources merely state that the water had not "conformed to standards."
The city has issued a "preventative" boil-water advisory until further notice for 2,900 residences.
TL;DR The city of Montreal found E.coli in the water in Anjou. A boil-water advisory is currently in effect between the metropolitan highway, Roi-René Boulevard, and the eastern and western boundaries of the borough.
Update: the boil-water advisory was lifted as of Tuesday afternoon.
Inspectors made the discovery on Saturday following a routine test. E. coli can cause infections that result in nausea, vomiting, headache, mild fever, severe stomach cramps, and watery or bloody diarrhea.
Communiqué - Avis d’ébullition d’eau - dans l'arrondissement d'Anjou, dans le secteur délimité par l'autoroute Métropolitaine, le boulevard Roi-René, la limite d'Anjou du côté de Montréal-Est et par la limite d'Anjou, du côté de Montréal (Tétreaultville)https://t.co/xznhinArX7— Ville de Montréal (@MTL_Ville) March 31, 2019
Though many recover from E.coli infections on their own, some infections result in hospitalizations.
Since the discovery of this bacteria, the Anjou borough has been under a boil-water advisory.
Avis d’ébullition d’eau - Au sud du boulevard Métropolitain et à l'est du boulevard Roi-René, arrondissement d'Anjou – émis le 30/03/2019 à 20h15— Ville de Montréal (@MTL_Ville) March 31, 2019
Plus d’info : https://t.co/pZn6dZr8lI
This boil-water advisory affects the square between the metropolitan highway, Roi-René Boulevard, the limits of Anjou to the east, and the limits of Anjou to the west. This advisory affects 2,900 households, or around 9,700 people, according to La Presse.
The city tested the water again on Sunday and Monday. If results come back negative, the boil-water advisory could be lifted as of this afternoon.
Stay tuned for updates.