Boil-water advisory in its 5th day for parts of Boucherville, Que.

Boucherville, Que., has lifted its boil-water advisory for some parts of the city, but residents living in other areas of the Montreal suburb are entering their fifth day under the warning.

The advisory is no longer in effect for the area south of De Mortagne Boulevard toward Highway 20. It remains in placefor residents living between De Mortagne Boulevard and the St. Lawrence River, according to a news release posted to the city's website.

De Mortagne High School is also cancelling itsclasses Tuesday in relation to the advisory, ongoing construction work at the school and the intense heat blanketing the city, according to its school board. TheCentre de services scolaire des Patriotesmade the announcement on its website Monday evening.

Analysis of water samples needs to be carried out over two days before the advisory can be completely lifted depending on the results, the city of Boucherville says in the release.

Where the advisory applies, watershould stillbe heated to a rolling boil for a full minute in order to be safe to drink, wash food, give to pets or brush teeth.

Saint-Bruno-de-Montarville, Que., lifted itsboil-water advisory earlier on Monday.

The advisory hasbeen in place since Friday, when E. coli bacteria was found in the water supply.

Some residents are upset they didn't receive information about the advisory sooner.

Matthew Banks, a father of three in Saint-Bruno de Montarville, learned of the measure on Sunday after it had been in place for two days.

"I don't even know where to go from here,'' he said in an interview with The Canadian Presson Monday. "We've been drinking the water, using it to wash dishes and stuff, and everyone seems to be fine."

Even so,he's bothered that he learned about the boil water advisory via a local Facebook group.

"We have electric signs,"he said."We're not in the 19th century. With today's technology, there's no reason why we can't advise the community of this."

He noted Meta, Facebook's parent company, is blocking Canadians from viewing links to news after the Online News Act required tech giants to pay for the news content shared on their platforms.

"That's where a lot of people get their news from,"Banks said. "But there's no reason why [the city]can't do a massive telephone call, or an advisory on electronic signs, or something."

Some residents frustrated by communication

In an email, Saint-Bruno de Montarville said it's keeping people updated through its official Facebook page.

Boucherville spokepersonJulie Lavigne said the city is sending messages directly to around 20,000 residents roughly half the city's populationwho have signed up to receive texts, calls or emails from the city.

It's also communicating through its website and Facebook page, she said, adding people are being encouraged to share information with those around them.

The city of Longueuil said Sunday it had experienced an issue with its emergency alert system the day the advisory took effect and was investigating the cause.

In an emailed statement, Longueuil said it's still investigating the source of the contamination, adding that only a single sample tested positive for E. coli.

Longueuil lifts advisory for 2 boroughs

The city of Longueuil lifted its boil-water advisory for the boroughs of Vieux-Longueuil and Saint-Hubert Sunday.

"The results of recent analyses carried out on the Longueuil water network are in order. Longueuil residents affected by the advisory no longer need to boil their water before drinking it," the city said in a news release.

For more information, visit the city of Longueuil's website and the section dedicated to drinking wateror call 311.