A Boil Water Advisory Is In Effect For Almost All Of Lachine

Only the Saint-Pierre district is exempt.
Staff Writer

Officials have issued a boil water advisory in the Montreal borough of Lachine. Every household, except the ones in the Saint-Pierre district, is asked to be vigilant and boil tap water for at least one minute before drinking. 

The preventative advisory was posted at around 9:30 a.m. on Tuesday morning. There's no word on when the alert will be lifted. 

A map of affected areas is available online.

Boil water advisory for all of Lachine except the Saint-Pierre district.

Borough of Lachine

You should boil your water if you're planning to drink it, prepare foods, give to your pets or babies, or brush your teeth, the city says.

You don't need to boil the water if you're simply washing your hands, washing your dishes, taking a shower, or doing your laundry. 

Once the advisory is lifted, residents are asked to run their taps for a few minutes before drinking. 

  • Teddy Elliot
  • Teddy Elliot was a Staff Writer for MTL Blog. He was born and raised in Montreal, Quebec and has a B.A. in Literature. Teddy has been a journalist for three years and was once an English teacher. His creative work has appeared in The Blasted Tree and Parenthetical Magazine. When he's not chasing scoops, Teddy can be found cheering on Aston Villa and listening to 80s power ballads. He was shortlisted for a Digital Publishing Award in 2021.

Montreal saw over 400 break-ins in April — These are the hardest-hit areas

April saw the highest single-month total of 2026 so far.

I went to Paris as a Montrealer & spent the entire trip being corrected on my own language

There is often a sense that they see our accent and culture as lesser than theirs...

Quebec is considering banning energy drinks for kids under 16 after a teen's death

One family's loss is driving a provincewide push for change.