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Water Today Title June 29, 2022

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Asvisory of the Day



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An E.Coli scare has prompted a boil water advisory (BWA) for residents in parts of the city of Longueuil, Québec as of the afternoon of September 6.

Laboratory findings indicated positive tests for E.Coli bacteria in the water supply system supplying the neighbourhoods of Saint-Hubert, Boucherville and Saint-Bruno-de-Montarville. This is the largest of the city's three water systems.

Located across the St. Lawrence River from Montreal, 264,000 of the city's residents are affected by the advisory.

According to city spokesperson, Louis-Pascal Cyr, they haven't discovered the source of the E.Coli yet.

"When we received the lab results we discovered that at one point there was some contamination," said Cyr, "It's very rare that the problem comes from the water treatment facility. A common cause is there are some public works somewhere like a construction site and someone has hit the pipes (resulting in contamination)."

He added that the samples could have just been improperly handled at the lab but at this point they are exploring many avenues to find out the cause.

Follow up samples have been taken and they are waiting to find those results before determining next steps.

"Before taking drastic measures, like flushing the entire system, we need to be really sure what the result of the tests are," said Cyr, "The Québec provincial regulation on water quality is making us take two separate series of sample before we're able to lift the advisory. It takes about 24 hours for a sample to grow in the lab, so the ball park is about a 48 hour delay before we can lift."

To alert residents of the advisory, the city of Longueuil will rely on a few different mediums. In addition to spreading the word through traditional media, they have electronic billboards that will be permanently showing the BWA information. The city's social media pages are also active and followers have been tagging other residents to inform them to be wary. They also have a call system set up where people who are on the land line directory or have registered their cell phones will receive automated phone messages or texts with relevant information. who ate there between September 6 to 8 know for sure.

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